EXHIBIT 4.1

                  INDENTURE,   dated  as  of  October  15,  1997  between  Qwest
Communications  International  Inc., a corporation  duly  organized and existing
under the laws of the State of Delaware  (herein called the  "Company"),  having
its principal  office at 555 Seventeenth  Street,  Denver,  Colorado 80202,  and
Bankers Trust Company, a New York banking corporation, as Trustee (herein called
the "Trustee").


                                              RECITALS OF THE COMPANY

                  The Company has duly  authorized  the  creation of an issue of
9.47% Senior  Discount Notes Due 2007 (herein  called the "Initial  Securities")
and 9.47% Series B Senior  Discount  Notes Due 2007 (the  "Exchange  Securities"
and, together with the Initial Securities,  the "Securities"),  of substantially
the tenor and amount  hereinafter set forth, and to provide therefor the Company
has duly authorized the execution and delivery of this Indenture.

                  All things  necessary  have been done to make the  Securities,
when executed by the Company and authenticated and delivered  hereunder and duly
issued by the  Company,  the valid  obligations  of the Company and to make this
Indenture  a valid  agreement  of  each  of the  Company  and  the  Trustee,  in
accordance with their and its terms.

                  NOW, THEREFORE, THIS INDENTURE WITNESSETH:

                  For and in  consideration  of the premises and the purchase of
the Securities by the Holders thereof, it is mutually covenanted and agreed, for
the equal  and  proportionate  benefit  of all  Holders  of the  Securities,  as
follows:


                                                    ARTICLE ONE

                                         DEFINITIONS AND OTHER PROVISIONS
                                              OF GENERAL APPLICATION

                  SECTION 101.  Definitions.

                  For  all  purposes  of this  Indenture,  except  as  otherwise
expressly provided or unless the context otherwise requires:

                (a) the terms defined in this Article have the meanings assigned
        to them in this Article, and include the plural as well as the singular;

                  (b) all other terms used herein which are defined in the Trust
         Indenture  Act,  either  directly  or by  reference  therein,  have the
         meanings assigned to them therein, and the terms "cash transaction" and
         "self-liquidating  paper",  as used in TIA Section 311,  shall have the
         meanings assigned to them in the rules of the Commission  adopted under
         the Trust Indenture Act;


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                  (c) all accounting terms not otherwise defined herein have the
         meanings  assigned  to  them  in  accordance  with  generally  accepted
         accounting  principles,  and,  except  as  otherwise  herein  expressly
         provided,  the term "generally  accepted  accounting  principles"  with
         respect to any computation  required or permitted  hereunder shall mean
         such  accounting  principles as are  generally  accepted at the date of
         such computation;

                  (d) the words  "herein",  "hereof" and  "hereunder"  and other
         words of similar  import refer to this  Indenture as a whole and not to
         any particular Article, Section, paragraph or other subdivision; and

                  (e)  unless  otherwise  indicated,   references  to  Articles,
         Sections,  paragraphs  or other  subdivisions  are  references  to such
         Articles, Sections, paragraphs or other subdivisions of this Indenture.

                  "Accreted  Value" means,  with respect to any Note,  (i) as of
any date prior to October 15,  2002,  an amount per $1,000  principal  amount at
maturity of Notes that is equal to the sum of (a) the  offering  price  ($629.62
per  $1,000  principal  amount at  maturity  of Notes) of such Notes and (b) the
portion of the excess of the  principal  amount at  maturity  of such Notes over
such  offering  price which shall have been  amortized  through such date,  such
amount to be so amortized on a daily basis and compounded  semiannually  on each
October 15 and April 15 at a rate of 9.47% per annum  from the date of  original
issue of the Notes through the date of determination  computed on the basis of a
360-day  year of  twelve  30-day  months,  and  (ii) as of any  date on or after
October 15,  2002,  the  principal  amount at  maturity of each Note;  provided,
however,  that if the Company elects to commence the accrual of cash interest on
the Notes on or after October 15, 2000 and prior to October 15, 2002,  the Notes
shall cease to  accrete,  and the  Accreted  Value and the  principal  amount at
maturity thereof shall be the Accreted Value on the date of commencement of such
accrual as calculated in accordance with the foregoing.

                  "Acquired Debt" means,  with respect to any specified  Person,
(i) Debt of any other  Person  existing at the time such  Person  merges with or
into or consolidates  with or becomes a Subsidiary of such specified  Person and
(ii) Debt secured by a Lien  encumbering  any asset  acquired by such  specified
Person,  which Debt was not  incurred in  anticipation  of, and was  outstanding
prior to, such merger, consolidation or acquisition.

                  "Act", when used with respect to any Holder, has the meaning
specified in Section 104.

                  "Affiliate"  of any Person means any other Person  directly or
indirectly  controlling  or  controlled  by or under  direct or indirect  common
control with such Person.  For the purposes of this  definition,  "control" when
used with  respect to any Person  means the power to direct the  management  and
policies of such Person,  directly or indirectly,  whether through the ownership
of voting securities,  by contract or otherwise; and the terms "controlling" and
"controlled" have meanings correlative to the foregoing.

                  "Agent Member" has the meaning specified in Section 312.

                  "Asset  Disposition"  means any  transfer,  conveyance,  sale,
lease or other disposition by the Company or any Restricted Subsidiary in one or
more related  transactions  occurring  within any 12-month  period  (including a
consolidation  or merger or other sale of any such Restricted  Subsidiary  with,
into or to another Person in a transaction in which such  Restricted  Subsidiary
ceases to be a Restricted Subsidiary of the Company, but excluding a disposition
by a Restricted  Subsidiary to the Company or a Restricted  Subsidiary or by the
Company to a Restricted Subsidiary) of (i) shares of

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Capital Stock or other  ownership  interests of a Restricted  Subsidiary  (other
than as  permitted  by  clauses  (iii),  (iv)  and (v) of  Section  1019),  (ii)
substantially  all of the  assets of the  Company or any  Restricted  Subsidiary
representing  a division or line of business or (iii) other  assets or rights of
the  Company or any  Restricted  Subsidiary  outside of the  ordinary  course of
business (excluding any transfer,  conveyance,  sale, lease or other disposition
of  equipment  that is obsolete  or no longer used by or useful to the  Company,
provided that the Company has delivered to the Trustee an Officers'  Certificate
stating  that  such  criteria  are  satisfied);  provided  in each case that the
aggregate  consideration  for such transfer,  conveyance,  sale,  lease or other
disposition  is equal to $500,000 or more in any  12-month  period and  provided
further  that the  following  shall  not be Asset  Dispositions:  (x)  Permitted
Telecommunications    Capital    Asset    Dispositions,    (y)    exchanges   of
Telecommunications  Assets for other  Telecommunications  Assets  where the Fair
Market Value of the Telecommunications  Assets received is at least equal to the
Fair Market Value of the Telecommunications  Assets disposed of or, if less, the
difference is received in cash and such cash is Net  Available  Proceeds and (z)
Liens permitted to be Incurred pursuant to the second paragraph of Section 1015.

                  "Attributable  Value" means, as to any particular  lease under
which any Person is at the time liable  other than a Capital  Lease  Obligation,
and at any date as of which the amount  thereof is to be  determined,  the total
net amount of rent  required to be paid by such Person  under such lease  during
the initial term thereof as  determined in accordance  with  generally  accepted
accounting principles, discounted from the last date of such initial term to the
date of determination at a rate per annum equal to the discount rate which would
be applicable to a Capital Lease  Obligation  with like term in accordance  with
generally accepted accounting principles.  The net amount of rent required to be
paid under any such lease for any such period shall be the  aggregate  amount of
rent payable by the lessee with respect to such period after  excluding  amounts
required  to be paid on  account  of  insurance,  taxes,  assessments,  utility,
operating and labor costs and similar charges. In the case of any lease which is
terminable by the lessee upon the payment of penalty, such net amount shall also
include the lesser of the amount of such penalty (in which case no rent shall be
considered as required to be paid under such lease  subsequent to the first date
upon  which  it may be so  terminated)  or the rent  which  would  otherwise  be
required  to be paid if such lease is not so  terminated.  "Attributable  Value"
means, as to a Capital Lease Obligation, the principal amount thereof.

               "Board of Directors" means the board of directors of the Company.

                  "Board  Resolution" means a copy of a resolution  certified by
the Secretary or an Assistant Secretary of the Company to have been duly adopted
by the Board of Directors and to be in full force and effect on the date of such
certification, and delivered to the Trustee.

                  "Business Day" means each Monday, Tuesday, Wednesday, Thursday
and Friday which is not a day on which banking  institutions  in The City of New
York are authorized or obligated by law or executive order to close.

                  "Capital Lease  Obligation" of any Person means the obligation
to  pay  rent  or  other  payment  amounts  under  a  lease  of (or  other  Debt
arrangements  conveying  the right to use)  real or  personal  property  of such
Person which is required to be  classified  and accounted for as a capital lease
or a liability on the face of a balance sheet of such Person in accordance  with
generally  accepted  accounting  principles  (a  "Capital  Lease").  The  stated
maturity of such obligation shall be the date of the last payment of rent or any
other  amount due under such lease prior to the first date upon which such lease
may be terminated by the lessee without payment of a penalty. The principal

                                                       4.1-3





amount of such  obligation  shall be the  capitalized  amount thereof that would
appear  on the  face of a  balance  sheet  of such  Person  in  accordance  with
generally accepted accounting principles.

                  "Capital  Stock"  of any  Person  means  any and  all  shares,
interests, participations or other equivalents (however designated) of corporate
stock or other equity participations,  including partnership interests,  whether
general or limited, of such Person.

                  "Cash  Equivalents"  means (i) any Debt with a maturity of 365
days or less issued or directly  and fully  guaranteed  as insured by the United
States or any agency or  instrumentality  thereof  (provided that the full faith
and  credit of the United  States is  pledged  in  support  thereof or such Debt
constitutes a general obligation of such country);  (ii) deposits,  certificates
of deposit or  acceptances  with a maturity of 365 days or less of any financial
institution that is a member of the Federal Reserve System,  in each case having
combined  capital  and  surplus and  undivided  profits (or any similar  capital
concept) of not less than $500 million and whose senior  unsecured debt is rated
at least  "A-1"  by  Standard  & Poor's  Ratings  Services  or "P-1" by  Moody's
Investors  Service,  Inc.; (iii) commercial paper with a maturity of 365 days or
less issued by a Corporation  (other than an Affiliate of the Company) organized
under the laws of the  United  States or any  state  thereof  and rated at least
"A-1" by  Standard  & Poor's  Ratings  Services  or "P-1" by  Moody's  Investors
Service,  Inc.; and (iv) repurchase agreements and reverse repurchase agreements
relating to marketable direct obligations  issued or unconditionally  guaranteed
by the United  States or issued by any  agency or  instrumentality  thereof  and
backed by the full  faith and credit of the United  States  maturing  within 365
days from the date of acquisition.

                  "Change of Control" has the meaning specified in Section 1010.

                  "Commission" means the Securities and Exchange Commission,  as
from time to time  constituted,  created  under the Exchange  Act, or, if at any
time after the execution of this Indenture  such  Commission is not existing and
performing the duties now assigned to it under the Trust Indenture Act, then the
body performing such duties at such time.

                  "Common  Stock"  of any  Person  means  Capital  Stock of such
Person that does not rank prior,  as to the  payment of  dividends  or as to the
distribution   of  assets  upon  any  voluntary  or   involuntary   liquidation,
dissolution  or winding  up of such  Person,  to shares of Capital  Stock of any
other class of such Person.

                  "Company" means the Person named as the "Company" in the first
paragraph  of this  Indenture,  until a successor  Person shall have become such
pursuant  to  the  applicable  provisions  of  this  Indenture,  and  thereafter
"Company" shall mean such successor Person.

                  "Company  Order" or "Company  Request" means a written request
or order signed in the name of the Company by the Chief Executive  Officer,  the
President or a Vice  President,  and by the Chief Financial  Officer,  the Chief
Accounting Officer, the Treasurer,  an Assistant Treasurer,  the Secretary or an
Assistant Secretary of the Company and delivered to the Trustee.

                  "Consolidated  Capital  Ratio"  of any  Person  as of any date
means the ratio of (i) the aggregate  consolidated  principal  amount of Debt of
such Person  then  outstanding  to (ii) the greater of either (a) the  aggregate
consolidated  paid-in  capital  of  such  Person  as of  such  date  or (b)  the
stockholders'  equity as of such date as shown on the consolidated balance sheet
of such Person in accordance with generally accepted accounting principles.

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                  "Consolidated  Cash Flow  Available for Fixed Charges" for any
period  means the  Consolidated  Net Income of the  Company  and its  Restricted
Subsidiaries for such period  increased by the sum of (i) Consolidated  Interest
Expense of the Company and its  Restricted  Subsidiaries  for such period,  plus
(ii)  Consolidated  Income Tax Expense of the Company and its  Subsidiaries  for
such period, plus (iii) the consolidated  depreciation and amortization  expense
or other non-cash  write-offs of assets included in the income  statement of the
Company and its Restricted  Subsidiaries  for such period,  plus (iv) any charge
related to any premium or penalty paid in connection  with redeeming or retiring
any Debt prior to its stated maturity;  provided,  however,  that there shall be
excluded  therefrom the  Consolidated  Cash Flow Available for Fixed Charges (if
positive)  of  any  Restricted  Subsidiary   (calculated   separately  for  such
Restricted Subsidiary in the same manner as provided above for the Company) that
is subject to a  restriction  which  prevents  the payment of  dividends  or the
making of distributions to the Company or another  Restricted  Subsidiary to the
extent of such restriction.

                  "Consolidated  Income Tax  Expense"  for any period  means the
aggregate  amounts of the  provisions  for income  taxes of the  Company and its
Subsidiaries  for such period  calculated on a consolidated  basis in accordance
with generally accepted accounting principles.

                  "Consolidated  Interest  Expense"  means  for any  period  the
interest expense included in a consolidated income statement (excluding interest
income)  of the  Company  and its  Restricted  Subsidiaries  for such  period in
accordance with generally  accepted  accounting  principles,  including  without
limitation or duplication (or, to the extent not so included,  with the addition
of),  (i) the  amortization  of Debt  discounts;  (ii) any payments or fees with
respect to letters of credit, bankers' acceptances or similar facilities;  (iii)
fees with  respect  to  interest  rate swap or  similar  agreements  or  foreign
currency hedge,  exchange or similar agreements;  (iv) Preferred Stock dividends
of the Company and its  Subsidiaries  (other  than  dividends  paid in shares of
Preferred  Stock that is not  Disqualified  Stock) declared and paid or payable;
(v) accrued  Disqualified  Stock  dividends  of the  Company and its  Restricted
Subsidiaries,  whether or not declared or paid; (vi) interest on Debt guaranteed
by the Company  and its  Restricted  Subsidiaries;  and (vii) the portion of any
Capital Lease  Obligation  paid during such period that is allocable to interest
expense.

                  "Consolidated  Net Income" for any period means the net income
(or  loss) of the  Company  and its  Restricted  Subsidiaries  for  such  period
determined  on a  consolidated  basis  in  accordance  with  generally  accepted
accounting  principles;  provided that there shall be excluded therefrom (a) the
net income  (or loss) of any  Person  acquired  by the  Company or a  Restricted
Subsidiary  in a  pooling-of-interests  transaction  for any period prior to the
date of such transaction, (b) the net income (or loss) of any Person that is not
a Restricted Subsidiary except to the extent of the amount of dividends or other
distributions  actually  paid to the Company or a Restricted  Subsidiary by such
Person  during such  period,  (c) gains or losses on Asset  Dispositions  by the
Company  or  its  Restricted  Subsidiaries,  (d)  all  extraordinary  gains  and
extraordinary   losses,   determined  in  accordance  with  generally   accepted
accounting  principles,  (e) the  cumulative  effect of  changes  in  accounting
principles, (f) non-cash gains or losses resulting from fluctuations in currency
exchange rates, (g) any non-cash expense related to the issuance to employees or
directors of the Company or any  Restricted  Subsidiary  or any Affiliate of the
Company  of (i)  options  to  purchase  Capital  Stock  of the  Company  or such
Restricted  Subsidiary or (ii) other  compensatory  rights  (including under the
Company's  Growth Share Plan),  provided,  in either case,  that such options or
rights, by their terms, can be redeemed only for Capital Stock, (h) with respect
to a Restricted Subsidiary that is not a Wholly Owned Subsidiary,  any aggregate
net income (or loss) in excess of the Company's or

                                                       4.1-5





any Restricted  Subsidiary's  pro rata share of the net income (or loss) of such
Restricted  Subsidiary that is not a Wholly Owned  Subsidiary  shall be excluded
and (i) the tax effect of any of the items  described in clauses (a) through (h)
above;  provided  further  that for  purposes of any  determination  pursuant to
Section 1013, there shall further be excluded  therefrom the net income (but not
net loss) of any Restricted  Subsidiary  that is subject to a restriction  which
prevents the payment of dividends or the making of  distributions to the Company
or another Restricted Subsidiary to the extent of such restriction.

                  "Consolidated Net Worth" of any Person means the stockholders'
equity of such Person,  determined on a  consolidated  basis in accordance  with
generally  accepted  accounting   principles,   less  amounts   attributable  to
Disqualified  Stock of such Person;  provided that, with respect to the Company,
adjustments  following the date of execution of this Indenture to the accounting
books and records of the Company in accordance with Accounting  Principles Board
Opinions Nos. 16 and 17 (or successor  opinions thereto) or otherwise  resulting
from the  acquisition  of control of the Company by another  Person shall not be
given effect to.

                  "Consolidated  Tangible  Assets" of any Person means the total
amount of assets (less applicable  reserves and other properly deductible items)
which under  generally  accepted  accounting  principles  would be included on a
consolidated  balance sheet of such Person and its Subsidiaries  after deducting
therefrom all  goodwill,  trade names,  trademarks,  patents,  unamortized  debt
discount  and  expense  and other  like  intangibles,  which in each case  under
generally accepted accounting  principles would be included on such consolidated
balance sheet.

                  "Continuing  Director" means, as of any date of determination,
any  member of the  Board of  Directors  who (i) was a member  of such  Board of
Directors on March 31, 1997 or (ii) was nominated for election or elected to the
Board of Directors  with the  affirmative  vote of a majority of the  Continuing
Directors  who  were  members  of the  Board  of  Directors  at the time of such
nomination or election or the affirmative vote of Permitted Holders.

                  "Corporate  Trust Office" means the principal  corporate trust
office of the  Trustee,  at which at any  particular  time its  corporate  trust
business  shall be  administered,  which office at the date of execution of this
Indenture is located at Four Albany  Street,  New York,  New York 10006,  except
that, with respect to presentation of Securities for payment or for registration
of  transfer  or  exchange,  such term  shall  mean the  office or agency of the
Trustee at which, at any particular time, its corporate agency business shall be
conducted.

                "Corporation" includes corporations, associations, companies and
business trusts.

                  "Credit Facilities" means one or more credit agreements,  loan
agreements or similar facilities,  secured or unsecured,  entered into from time
to time by the  Company  and its  Restricted  Subsidiaries,  and  including  any
related notes,  Guarantees,  collateral  documents,  instruments  and agreements
executed in  connection  therewith,  as the same may be  amended,  supplemented,
modified, restated or replaced from time to time.

                  "Debt"  means  (without  duplication),  with  respect  to  any
Person, whether recourse is to all or a portion of the assets of such Person and
whether  or not  contingent,  (i)  every  obligation  of such  Person  for money
borrowed,  (ii) every obligation of such Person evidenced by bonds,  debentures,
notes or other similar instruments, including obligations incurred in connection
with  the   acquisition  of  property,   assets  or   businesses,   (iii)  every
reimbursement obligation of such Person with respect to letters of credit,

                                                       4.1-6





bankers'  acceptances  or  similar  facilities  issued  for the  account of such
Person,  (iv) every  obligation of such Person issued or assumed as the deferred
purchase  price  of  property  or  services  (including   securities  repurchase
agreements but excluding trade accounts payable or accrued  liabilities  arising
in the ordinary course of business),  (v) every Capital Lease Obligation of such
Person, (vi) all Receivables Sales of such Person,  together with any obligation
of such Person to pay any  discount,  interest,  fees,  indemnities,  penalties,
recourse,   expenses  or  other  amounts  in  connection  therewith,  (vii)  all
obligations  to redeem  Disqualified  Stock issued by such Person,  (viii) every
obligation under Interest Rate and Currency Protection Agreements of such Person
and (ix) every  obligation of the type referred to in clauses (i) through (viii)
of another Person and all dividends of another  Person the payment of which,  in
either case, such Person has Guaranteed.  The "amount" or "principal  amount" of
Debt at any time of  determination  as used herein  represented  by (a) any Debt
issued at a price that is less than the  principal  amount at  maturity  thereof
shall be the amount of the liability in respect thereof determined in accordance
with generally accepted accounting principles, (b) any Receivables Sale shall be
the amount of the unrecovered  capital or principal  investment of the purchaser
(other than the Company or a Wholly Owned  Subsidiary  of the Company)  thereof,
excluding amounts representative of yield or interest earned on such investment,
or  (c)  any  Disqualified  Stock  shall  be the  maximum  fixed  redemption  or
repurchase price in respect thereof.

                  "Debt  Securities"  means any debt  securities  (including any
guarantee of such securities) issued by the Company or any Restricted Subsidiary
of the  Company in  connection  with a public  offering  or a private  placement
(excluding  Debt  permitted to be Incurred  pursuant to paragraph (b) of Section
1011).

                  "Default" means any event,  act or condition the occurrence of
which is, or after  notice or the  passage of time or both would be, an Event of
Default.

                  "Defaulted Interest" has the meaning specified in Section 307.

               "Depository" means The Depository Trust Company, its nominees and
successors.

                  "Designation" and "Designation Amount" have the respective
meanings specified in Section 1021.

                  "Disqualified  Stock" of any Person means any Capital Stock of
such Person  which,  by its terms (or by the terms of any security into which it
is  convertible or for which it is  exchangeable),  or upon the happening of any
event,  matures  or  is  mandatorily  redeemable,  pursuant  to a  sinking  fund
obligation  or otherwise,  or is  redeemable  at the option of such Person,  any
Subsidiary  of such  Person or the holder  thereof,  in whole or in part,  on or
prior to the final Stated Maturity of the Securities,  provided,  however,  that
any  Preferred  Stock  which  would not  constitute  Disqualified  Stock but for
provisions  thereof giving  holders  thereof the right to require the Company to
repurchase  or redeem such  Preferred  Stock upon the  occurrence of a Change of
Control occurring prior to the final Stated Maturity of the Securities shall not
constitute  Disqualified Stock if the change of control provisions applicable to
such  Preferred  Stock are no more  favorable  to the holders of such  Preferred
Stock than the provisions applicable to the Securities contained in Section 1010
and such  Preferred  Stock  specifically  provides  that the  Company  shall not
repurchase  or redeem any such stock  pursuant to such  provisions  prior to the
Company's  repurchase  of such  Securities  as are  required  to be  repurchased
pursuant to Section 1010.


                                                       4.1-7





                  "Eligible  Institution" means a commercial banking institution
that has  combined  capital  and  surplus  of not less than $500  million or its
equivalent in foreign currency, whose debt is rated "A" (or higher) according to
Standard & Poor's Ratings  Services or Moody's  Investors  Service,  Inc. at the
time as of which any investment or rollover therein is made.

                  "Eligible  Receivables" means, at any time, Receivables of the
Company  and its  Restricted  Subsidiaries,  as  evidenced  on the  most  recent
quarterly  consolidated  balance  sheet of the  Company as at a date at least 45
days prior to such  time,  less  Receivables  of the  Company or any  Restricted
Subsidiary  employed  to  secure  Debt  Incurred  pursuant  to  clause  (vii) of
paragraph (b) of Section 1011.

                  "Event of Default" has the meaning specified in Section 501.

                  "Exchange Act" means the  Securities  Exchange Act of 1934, as
amended (or any successor  act),  and the rules and  regulations  thereunder (or
respective successors thereto).

                  "Exchange Offer" means the exchange offer that may be effected
pursuant to the Registration Agreement.

                "Exchange Offer Registration Statement" means the Exchange Offer
Registration Statement as defined in the Registration Agreement.

                  "Exchange  Securities"  has the  meaning  stated  in the first
recital of this Indenture and refers to any Exchange Securities containing terms
substantially  identical to the Initial  Securities  (except that such  Exchange
Securities shall not contain terms with respect to transfer  restrictions)  that
are issued and exchanged for the Initial Securities pursuant to the Registration
Agreement and this Indenture.

              "Expiration Date" has the meaning specified in "Offer to Purchase"
below.

                  "Fair  Market  Value"  means,  with  respect  to any  asset or
property,  the price that could be  negotiated  in an  arm's-length  free market
transaction,  for cash, between a willing seller and a willing buyer, neither of
whom is under  pressure or compulsion to complete the  transaction.  Fair Market
Value shall be  determined  by the Board of  Directors  acting in good faith and
shall be evidenced by a Board Resolution delivered to the Trustee.

                  "Federal Bankruptcy Code" means the Bankruptcy Act of Title 11
of the United States Code, as amended from time to time.

                  "Global  Security"  means a Rule  144A  Global  Security  or a
Regulation S Global Security, as the case may be.

                  "Government   Securities"  means  direct  obligations  of,  or
obligations guaranteed by, the United States of America for the payment of which
guarantee  or  obligations  the full faith and  credit of the  United  States is
pledged and which have a remaining weighted average life to maturity of not less
than one year from the date of investment therein.

                  "Group" has the meaning specified in Section 1010.

                  "Guarantee" by any Person means any obligation,  contingent or
otherwise,  of such  Person  guaranteeing,  or  having  the  economic  effect of
guaranteeing,  any Debt of any  other  Person  (the  "primary  obligor")  in any
manner, whether directly or indirectly,  and including,  without limitation, any
obligation of such Person (i) to purchase or pay (or advance or supply funds

                                                       4.1-8





for the  purchase  or  payment  of) such Debt or to  purchase  (or to advance or
supply  funds for the  purchase  of) any  security for the payment of such Debt,
(ii) to purchase  property,  securities  or services for the purpose of assuring
the holder of such Debt of the payment of such Debt or (iii) to maintain working
capital,  equity capital or other financial  statement condition or liquidity of
the primary  obligor so as to enable the  primary  obligor to pay such Debt (and
"Guaranteed",  "Guaranteeing" and "Guarantor" shall have meanings correlative to
the foregoing);  provided,  however,  that the Guarantee by any Person shall not
include  endorsements by such Person for collection or deposit,  in either case,
in the ordinary course of business.

                  "Guarantor" means a Restricted  Subsidiary of the Company that
has executed a Restricted Subsidiary Guarantee.

               "Holder" means a Person in whose name a Security is registered in
the Security Register.

                  "Incur" means, with respect to any Debt or other obligation of
any Person,  to create,  issue,  incur (by  conversion,  exchange or otherwise),
assume,  Guarantee or otherwise  become  liable in respect of such Debt or other
obligation  including  by  acquisition  of  Subsidiaries  or the  recording,  as
required pursuant to generally accepted accounting  principles or otherwise,  of
any such Debt or other  obligation  on the  balance  sheet of such  Person  (and
"Incurrence",  "Incurred",  "Incurrable"  and  "Incurring"  shall have  meanings
correlative to the  foregoing);  provided,  however,  that a change in generally
accepted accounting principles that results in an obligation of such Person that
exists at such time becoming Debt shall not be deemed an Incurrence of such Debt
and that  neither the accrual of interest nor the  accretion  of original  issue
discount shall be deemed an Incurrence of Debt.

                  "Indenture"  means this instrument as originally  executed and
as it may from time to time be supplemented or amended by one or more indentures
supplemental hereto entered into pursuant to the applicable provisions hereof.

                  "Indenture  Obligations"  means the obligations of the Company
and any other  obligor  under  this  Indenture  or under the  Securities  to pay
principal  of,  premium,  if any,  and interest on the  Securities  when due and
payable, whether at maturity, by acceleration, call for redemption or repurchase
or otherwise,  and all other amounts due or to become due under or in connection
with  this  Indenture  or the  Securities  and  the  performance  of  all  other
obligations  to the  Trustee  (including,  but not  limited  to,  payment of all
amounts due the Trustee under Section 607), Paying Agent, Security Registrar and
the Holders of the Securities under this Indenture and the Securities  according
to the terms thereof.

              "Initial Purchasers" means Salomon Brothers Inc, Donaldson, Lufkin
& Jenrette Securities Corporation and Merrill Lynch, Pierce, Fenner & Smith
Incorporated.

                "Initial Securities" has the meaning provided in the recitals to
this Indenture.

                  "Interest Payment Date" means the Stated Maturity of an
installment of interest on the Securities.

                  "Interest Rate or Currency Protection Agreement" of any Person
means any forward contract,  futures  contract,  swap, option or other financial
agreement or arrangement (including,  without limitation,  caps, floors, collars
and similar  agreements)  relating to, or the value of which is dependent  upon,
interest rates or currency exchange rates or indices.


                                                       4.1-9





                  "Investment"  by any Person means any direct or indirect loan,
advance  or other  extension  of credit  or  capital  contribution  (by means of
transfers  of cash or other  property  to others or  payments  for  property  or
services  for the  account or use of others,  or  otherwise)  to, or purchase or
acquisition of Capital Stock,  bonds,  notes,  debentures or other securities or
evidence  of Debt  issued  by,  any other  Person,  including  any  payment on a
Guarantee of any obligation of such other Person.

                  "Lien"  means,  with  respect to any  property or assets,  any
mortgage or deed of trust, pledge, hypothecation,  assignment, Receivables Sale,
deposit arrangement,  security interest,  lien, charge, easement (other than any
easement not materially impairing usefulness), encumbrance, preference, priority
or other security  agreement or  preferential  arrangement of any kind or nature
whatsoever  on or with respect to such  property or assets  (including,  without
limitation,  any  conditional  sale or other title  retention  agreement  having
substantially the same economic effect as any of the foregoing). For purposes of
this definition the sale, lease,  conveyance or other transfer by the Company or
any  Subsidiary  of,  including  the  grant  of  indefeasible  rights  of use or
equivalent  arrangements  with  respect  to,  dark or lit  communications  fiber
capacity or communications conduit shall not constitute a Lien.

                  "Liquidated Interest" has the meaning specified in Exhibit A.

                  "Maturity",  when used with respect to any Security, means the
date on which the  principal  of such  Security or an  installment  of principal
becomes  due and  payable as therein or herein  provided,  whether at the Stated
Maturity or by declaration of acceleration, notice of redemption or otherwise.

                  "Net  Available  Proceeds"  from any Asset  Disposition by any
Person means cash or cash equivalents  received  (including  amounts received by
way of  sale  or  discounting  of any  note,  installment  receivable  or  other
receivable,  but  excluding  any  other  consideration  received  in the form of
assumption  by the  acquiror  of  Debt or  other  obligations  relating  to such
properties or assets)  therefrom by such Person,  net of (i) any portion thereof
invested within 360 days of such Asset Disposition in Telecommunications Assets,
(ii) all legal, title and recording tax expenses, commissions and other fees and
expenses Incurred and all federal,  state,  provincial,  foreign and local taxes
required  to  be  accrued  as  a  liability  as  a  consequence  of  such  Asset
Disposition,  (iii) all payments made by such Person or its  Subsidiaries on any
Debt which is secured by such  assets in  accordance  with the terms of any Lien
upon or with respect to such assets or which must by the terms of such Lien,  or
in  order  to  obtain  a  necessary  consent  to such  Asset  Disposition  or by
applicable law, be repaid out of the proceeds from such Asset Disposition,  (iv)
all  distributions  and other  payments  made to  minority  interest  holders in
Subsidiaries  of such  Person or  Permitted  Joint  Ventures as a result of such
Asset  Disposition and (v) appropriate  amounts to be provided by such Person or
any  Subsidiary  thereof,  as the case may be, as a reserve in  accordance  with
generally accepted accounting principles against any liabilities associated with
such assets and retained by such Person or any Subsidiary  thereof,  as the case
may be, after such Asset Disposition, including, without limitation, liabilities
under  any   indemnification   obligations  and  severance  and  other  employee
termination  costs  associated  with  such  Asset  Disposition,  in each case as
determined  by the Board of  Directors of such Person,  in its  reasonable  good
faith  judgment  evidenced  by Board  Resolution;  provided,  however,  that any
reduction in such reserve  within twelve months  following the  consummation  of
such Asset  Disposition  shall be for all  purposes  of this  Indenture  and the
Securities treated as a new Asset Disposition at the time of such reduction with
Net Available Proceeds equal to the amount of such reduction.

                  "Notice of Default" has the meaning specified in Section 501.


                                                      4.1-10





                 "Offer" has the meaning specified in "Offer to Purchase" below.

                  "Offer to Purchase"  means a written  offer (the "Offer") sent
by the  Company  by  first  class  mail,  postage  prepaid,  to each  Holder  of
Securities at his address  appearing in the Security Register on the date of the
Offer  offering  to  purchase  up to the  total  aggregate  principal  amount at
maturity of Securities  specified in such Offer at the purchase price  specified
in such  Offer (as  determined  pursuant  to  Section  1010).  Unless  otherwise
required by  applicable  law, the Offer shall  specify an  expiration  date (the
"Expiration  Date") of the Offer to  Purchase  which  shall be,  subject  to any
contrary  requirements  of applicable law, not less than 30 days or more than 60
days after the date of such Offer and a settlement  date (the  "Purchase  Date")
for purchase of Securities  within five Business Days after the Expiration Date.
The Company  shall notify the Trustee at least 15 Business Days (or such shorter
period as is acceptable to the Trustee) prior to the mailing of the Offer of the
Company's obligation to make an Offer to Purchase, and the Offer shall be mailed
by the Company or, at the Company's  request,  by the Trustee in the name and at
the expense of the Company.  The Offer shall contain information  concerning the
business  of the Company  and its  Subsidiaries  which the Company in good faith
believes  will enable such Holders to make an informed  decision with respect to
the Offer to  Purchase  (which at a minimum  will  include  (i) the most  recent
annual and quarterly  financial  statements  and  "Management's  Discussion  and
Analysis of  Financial  Condition  and Results of  Operations"  contained in the
documents  required to be filed with the Trustee pursuant to Section 1008 (which
requirements  may be satisfied by delivery of such  documents  together with the
Offer),  (ii) a description of material  developments in the Company's  business
subsequent to the date of the latest of such financial statements referred to in
clause (i) (including a description of the events  requiring the Company to make
the Offer to Purchase),  (iii) if applicable,  appropriate  pro forma  financial
information  concerning  the Offer to  Purchase  and the  events  requiring  the
Company to make the Offer to Purchase and (iv) any other information required by
applicable law to be included therein). The Offer shall contain all instructions
and materials  necessary to enable such Holders to tender Securities pursuant to
the Offer to Purchase.
The Offer shall also state:

                (a) the Section of this Indenture pursuant to which the Offer to
         Purchase is being made;

                  (b)      the Expiration Date and the Purchase Date;

                  (c)  the  aggregate   principal  amount  at  maturity  of  the
         Outstanding  Securities offered to be purchased by the Company pursuant
         to the Offer to Purchase  (including,  if less than 100%, the manner by
         which such has been determined pursuant to the Section hereof requiring
         the Offer to Purchase) (the "Purchase Amount");

                  (d) the  purchase  price  to be paid by the  Company  for each
         $1,000 aggregate  principal  amount at maturity of Securities  accepted
         for payment (as  specified  pursuant  to Section  1010) (the  "Purchase
         Price");

                  (e) that the  Holder  may  tender  all or any  portion  of the
         Securities  registered  in the name of such Holder and that any portion
         of a Security  tendered  must be tendered  in an  integral  multiple of
         $1,000 principal amount at maturity;

                  (f) the place or places where Securities are to be surrendered
         for tender pursuant to the Offer to Purchase;


                                                      4.1-11





                  (g)      that any Securities not tendered or tendered but not
        purchased by the Company will continue to accrete or accrue interest, as
         the case may be;

                  (h) that on the Purchase  Date the Purchase  Price will become
         due and payable upon each Security being accepted for payment  pursuant
         to the Offer to Purchase and that interest thereon, if any, shall cease
         to accrue on and after the Purchase Date;

                  (i) that each Holder electing to tender a Security pursuant to
         the Offer to Purchase  will be required to surrender  such  Security at
         the  place or  places  specified  in the  Offer  prior to the  close of
         business on the Expiration Date (such Security being, if the Company or
         the Trustee so requires,  duly endorsed by, or accompanied by a written
         instrument  of  transfer  in form  satisfactory  to the Company and the
         Trustee  duly  executed  by, the Holder  thereof or its  attorney  duly
         authorized in writing);

                  (j) that  Holders  will be  entitled  to  withdraw  all or any
         portion of  Securities  tendered if the Company (or their Paying Agent)
         receives,  not later than the close of business on the Expiration Date,
         a telegram,  telex,  facsimile transmission or letter setting forth the
         name of the Holder,  the  principal  amount at maturity of the Security
         the Holder tendered,  the certificate number of the Security the Holder
         tendered  and a  statement  that such  Holder is  withdrawing  all or a
         portion of its tender;

                  (k) that (i) if Securities in an aggregate principal amount at
         maturity  less than or equal to the Purchase  Amount are duly  tendered
         and not withdrawn pursuant to the Offer to Purchase,  the Company shall
         purchase all such  Securities  and (ii) if  Securities  in an aggregate
         principal  amount at  maturity  in excess of the  Purchase  Amount  are
         tendered  and not  withdrawn  pursuant  to the Offer to  Purchase,  the
         Company shall purchase  Securities having an aggregate principal amount
         at maturity equal to the Purchase Amount on a pro rata basis (with such
         adjustments  as may be deemed  appropriate  so that only  Securities in
         denominations  of  $1,000  or  integral   multiples  thereof  shall  be
         purchased); and

                  (l) that in the case of any Holder whose Security is purchased
         only  in  part,  the  Company  shall  execute,  and the  Trustee  shall
         authenticate and deliver to the Holder of such Security without service
         charge, a new Security or Securities, of any authorized denomination as
         requested by such Holder, in an aggregate  principal amount at maturity
         equal to and in exchange for the unpurchased portion of the Security so
         tendered.

Any Offer to Purchase  shall be governed by and effected in accordance  with the
Offer for such Offer to Purchase.

                  "Offering  Memorandum"  means the  Offering  Memorandum  dated
October  9,  1997  pursuant  to  which  the  Securities  were  offered,  and any
supplement thereto.

                  "Officers'  Certificate"  means a  certificate  signed  by the
Chief Executive  Officer,  the President or a Vice  President,  and by the Chief
Financial Officer,  the Chief Accounting  Officer,  the Treasurer,  an Assistant
Treasurer,  the Secretary or an Assistant Secretary of the Company and delivered
to the Trustee.


                                                      4.1-12





                  "Opinion of Counsel" means an opinion of counsel acceptable to
the Trustee  (who may be counsel to the  Company,  including  an employee of the
Company).

                  "Outstanding", when used with respect to Securities, means, as
of the date of  determination,  all  Securities  theretofore  authenticated  and
delivered under this Indenture, except:

                (i) Securities theretofore cancelled by the Trustee or delivered
         to the Trustee for cancellation;

                  (ii)  Securities,  or portions  thereof,  for whose payment or
         redemption money in the necessary amount has been theretofore deposited
         with the Trustee or any Paying  Agent (other than the Company) in trust
         or set aside and  segregated  in trust by the  Company  (if the Company
         shall act as its own Paying Agent) for the Holders of such  Securities;
         provided that, if such  Securities  are to be redeemed,  notice of such
         redemption has been duly given pursuant to this Indenture;

                  (iii)  Securities,  except to the extent  provided in Sections
         1202  and  1203,  with  respect  to  which  the  Company  has  effected
         defeasance  and/or  covenant  defeasance as provided in Article Twelve;
         and

                  (iv)  Securities  which have been paid pursuant to Section 306
         or in  exchange  for or in lieu of which  other  Securities  have  been
         authenticated and delivered pursuant to this Indenture,  other than any
         such  Securities in respect of which there shall have been presented to
         the Trustee proof satisfactory to it that such Securities are held by a
         bona fide purchaser in whose hands the Securities are valid obligations
         of the Company;

provided,  however,  that in  determining  whether the Holders of the  requisite
principal  amount at maturity of Outstanding  Securities have given any request,
demand,  authorization,  direction, consent, notice or waiver hereunder, and for
the purpose of making the calculations  required by TIA Section 313,  Securities
owned by the Company or any other  obligor upon the  Securities or any Affiliate
of the Company or such other obligor shall be  disregarded  and deemed not to be
Outstanding,  except that, in determining whether the Trustee shall be protected
in  making  such  calculation  or in  relying  upon  any such  request,  demand,
authorization,  direction,  notice, consent or waiver, only Securities which any
Responsible Officer of the Trustee knows to be so owned shall be so disregarded.
Securities  so owned  which have been  pledged in good faith may be  regarded as
Outstanding if the pledgee  establishes to the  satisfaction  of the Trustee the
pledgee's  right so to act with respect to such  Securities and that the pledgee
is not the Company or any other obligor upon the  Securities or any Affiliate of
the Company or such other obligor.

                  "Paying Agent" means any Person  (including the Company acting
as Paying  Agent)  authorized  by the Company to pay the  principal  or Accreted
Value of (and  premium,  if any) or interest on any  Securities on behalf of the
Company.

                  "Permitted  Holders"  means any Person who was the  beneficial
owner  (within the meaning of Rule 13d-3 under the Exchange Act) of stock of the
Company  on March 31,  1997,  and any  Affiliates  of such  Person  (i) who were
Affiliates of such Person on March 31, 1997 or (ii) who were formed, directly or
indirectly,  by any such Person after March 31, 1997;  provided,  however,  that
Persons who were  beneficial  owners (within the meaning of Rule 13d-3 under the
Exchange Act) of such Person on March 31, 1997 continued to be beneficial owners
(within  the  meaning  of Rule  13d-3  under  the  Exchange  Act) at the time of
formation of such Affiliate.

                                                      4.1-13





                  "Permitted Interest Rate or Currency Protection  Agreement" of
any Person means any Interest Rate or Currency Protection Agreement entered into
with one or more financial  institutions in the ordinary course of business that
is designed to protect such Person  against  fluctuations  in interest  rates or
currency  exchange  rates with  respect to Debt  Incurred and which shall have a
notional  amount no greater than the payments due with respect to the Debt being
hedged thereby and not for purposes of speculation.

                  "Permitted  Investments"  means  (a)  Cash  Equivalents;   (b)
Investments in prepaid expenses,  negotiable instruments held for collection and
lease,  utility  and  workers'  compensation,   performance  and  other  similar
deposits; (c) loans, advances or extensions of credit to employees and directors
made in the ordinary course of business and consistent  with past practice;  (d)
obligations under Interest Rate or Currency  Protection  Agreements;  (e) bonds,
notes,   debentures  and  other  securities   received  as  a  result  of  Asset
Dispositions  pursuant to and in compliance  with Section 1018; (f)  Investments
made in the ordinary  course of business as partial  payment for  constructing a
network relating to a Telecommunications  Business; (g) commercially  reasonable
extensions of trade credit;  (h)  Investments in any Person as a result of which
such Person becomes a Restricted Subsidiary;  (i) Investments in Permitted Joint
Ventures in an aggregate  amount not to exceed $25 million;  (j)  Investments in
Affiliates or Related Persons in an aggregate  amount not to exceed $11 million,
provided that the making of such  Investments  is permitted  pursuant to Section
1020;  and (k)  Investments  in an  aggregate  amount not to exceed $15  million
consisting of the  contribution  by the Company or any Restricted  Subsidiary of
assets  located in Mexico to joint ventures in which the Company or a Restricted
Subsidiary has an interest.

                  "Permitted Joint Venture" means a Corporation,  partnership or
other  entity  other  than a  Restricted  Subsidiary  engaged  in  one  or  more
Telecommunications  Businesses  over  which  the  Company  and/or  one  or  more
Strategic  Investors  have,  directly  or  indirectly,  the power to direct  the
policies, management and affairs.

                  "Permitted  Liens"  means (a) Liens  for  taxes,  assessments,
governmental charges, levies or claims which are not yet delinquent or which are
being contested in good faith by appropriate proceedings,  if a reserve or other
appropriate provision, if any, as shall be required in conformity with generally
accepted  accounting  principles shall have been made therefor;  (b) other Liens
incidental  to the conduct of the  Company's  and its  Restricted  Subsidiaries'
business or the ownership of its property and assets not securing any Debt,  and
which do not in the aggregate materially detract from the value of the Company's
and its Restricted  Subsidiaries'  property or assets when taken as a whole,  or
materially  impair the use thereof in the operation of its  business;  (c) Liens
with respect to assets of a  Restricted  Subsidiary  granted by such  Restricted
Subsidiary to the Company or a Restricted Subsidiary to secure Debt owing to the
Company or such Restricted  Subsidiary;  (d) Liens, pledges and deposits made in
the  ordinary  course of  business in  connection  with  workers'  compensation,
unemployment  insurance  and other types of  statutory  obligations;  (e) Liens,
pledges or deposits made to secure the  performance  of tenders,  bids,  leases,
public  or  statutory  obligations,   sureties,  stays,  appeals,   indemnities,
performance or other similar bonds and other obligations of like nature Incurred
in the ordinary course of business  (exclusive of obligations for the payment of
borrowed money); (f) zoning restrictions,  servitudes, easements, rights-of-way,
restrictions and other similar charges or encumbrances  Incurred in the ordinary
course of business which, in the aggregate,  do not materially  detract from the
value of the property subject thereto or materially  interfere with the ordinary
conduct of the business of the Company or its Restricted Subsidiaries; (g) Liens
arising out of judgments or awards against or other court proceedings concerning
the Company or any  Restricted  Subsidiary  with respect to which the Company or
such

                                                      4.1-14





Restricted  Subsidiary is prosecuting an appeal or proceeding for review and the
Company or such  Restricted  Subsidiary  is  maintaining  adequate  reserves  in
accordance with generally accepted accounting  principles;  and (h) any interest
or title of a lessor in the  property  subject to any lease other than a Capital
Lease.

                  "Permitted Telecommunications Capital Asset Disposition" means
the transfer,  conveyance,  sale, lease or other  disposition of a capital asset
that  is a  Telecommunications  Asset  (including  fiber,  conduit  and  related
equipment)  (i) the  proceeds of which are treated as revenues by the Company in
accordance with generally accepted  accounting  principles and (ii) that, in the
case of the sale of fiber,  would not result in the Company  retaining less than
24 fibers per route mile on any segment of the Company's network.

                  "Person" means any individual, Corporation, partnership, joint
venture,  association,  joint stock company, trust, unincorporated organization,
government or agency or political subdivision thereof or any other entity.

                  "Physical  Security"  means  Securities  issued in  registered
definitive form without coupons substantially in the form of Exhibit A.

                  "Predecessor  Security" of any particular Security means every
previous Security evidencing all or a portion of the same debt as that evidenced
by such  particular  Security;  and,  for the purposes of this  definition,  any
Security  authenticated  and  delivered  under  Section  306 in  exchange  for a
mutilated  security or in lieu of a lost,  destroyed or stolen Security shall be
deemed to evidence  the same debt as the  mutilated,  lost,  destroyed or stolen
Security.

                  "Preferred  Dividends" for any Person means for any period the
quotient  determined by dividing the amount of dividends and distributions  paid
or accrued  (whether or not  declared) on Preferred  Stock of such Person during
such  period  calculated  in  accordance  with  generally  accepted   accounting
principles,  by 1 minus the maximum statutory income tax rate then applicable to
the Company (expressed as a decimal).

                  "Preferred  Stock" of any Person means  Capital  Stock of such
Person of any class or classes (however  designated) that ranks prior, as to the
payment of dividends or as to the  distribution  of assets upon any voluntary or
involuntary liquidation,  dissolution or winding up of such Person, to shares of
Capital Stock of any other class of such Person.

                  "Private  Placement  Legend" means the third  paragraph of the
legend set forth in the Securities in the form set forth in Exhibit A.

                  "Public Equity Offering" means an underwritten public offering
of  common  stock  made  on  a  primary  basis  by  the  Company  pursuant  to a
registration  statement filed with, and declared effective by, the Commission in
accordance with the Securities Act.

              "Purchase Amount" has the meaning specified in "Offer to Purchase"
above.

                "Purchase Date" has the meaning specified in "Offer to Purchase"
above.

                  "Purchase  Money Debt" means Debt  Incurred at any time within
270 days of, and for the purposes of  financing  all or any part of the cost of,
the construction, installation, acquisition or improvement by the Company or any
Restricted  Subsidiary  of the  Company  of any  new  Telecommunications  Assets
constructed, installed, acquired or improved after March 31, 1997, provided

                                                      4.1-15





that the proceeds of such Debt are expended for such  purposes  within such 270-
day period.

               "Purchase Price" has the meaning specified in "Offer to Purchase"
above.

              "Qualified Institutional Buyer" or "QIB" has the meaning specified
in Rule 144A.

                  "Rating Decline" means the Securities cease to be rated B+ (or
the equivalent  thereof) or better by Standard & Poor's  Ratings  Services or B2
(or the equivalent thereof) or better by Moody's Investors Service, Inc.

                  "Receivables" means receivables,  chattel paper,  instruments,
documents  or  intangibles  evidencing  or  relating  to the right to payment of
money, excluding allowances for doubtful accounts.

                  "Receivables Sale" of any Person means any sale of Receivables
of such Person  (pursuant to a purchase  facility or  otherwise),  other than in
connection with a disposition of the business operations of such Person relating
thereto or a disposition of defaulted Receivables for purposes of collection and
not as a financing arrangement.

                  "Redemption  Date",  when used with respect to any Security to
be redeemed, in whole or in part, means the date fixed for such redemption by or
pursuant to this Indenture.

                  "Redemption  Price", when used with respect to any Security to
be  redeemed,  means the price at which it is to be  redeemed  pursuant  to this
Indenture.

                  "Registration  Agreement"  means  the  Registration  Agreement
between  the  Company  and the Initial  Purchasers  named  therein,  dated as of
October 15, 1997, relating to the Securities.

                  "Registration Statement" means the Registration Statement as
defined in the Registration Agreement.

                  "Regular Record Date" for the interest payable on any Interest
Payment Date means the October 1 or April 1 (whether or not a Business  Day), as
the case may be, next preceding such Interest Payment Date.

                  "Regulation S" means Regulation S under the Securities Act.

                  "Regulation S Global Security" has the meaning specified in
Section 303.

                  "Related Person" of any Person means any other Person directly
or  indirectly  owning (a) 5% or more of the  outstanding  Common  Stock of such
Person (or, in the case of a Person that is not a Corporation, 5% or more of the
outstanding  equity  interest in such  Person) or (b) 5% or more of the combined
outstanding voting power of the Voting Stock of such Person.

                  "Responsible Officer",  when used with respect to the Trustee,
means any officer  within the Trustee's  Corporate  Trust Office,  including any
vice president,  the Managing Director, the secretary,  any assistant secretary,
any  assistant  treasurer,  or any  other  officer  of the  Trustee  customarily
performing  functions similar to those performed by any of the  above-designated
officers,  and also means, with respect to a particular  corporate trust matter,
any other  officer to whom such matter is referred  because of his  knowledge of
and familiarity with the particular subject.

                                                      4.1-16





                "Restricted Payment" has the meaning specified in Section 1013.

                  "Restricted  Subsidiary" means a Subsidiary of the Company, or
of a Restricted  Subsidiary  that is a Wholly Owned  Subsidiary  of the Company,
that has not been  designated by the Board of Directors (by a Board  Resolution)
as an Unrestricted Subsidiary pursuant to and in compliance with Section 1021.

                  "Restricted   Subsidiary   Guarantee"   means  a  supplemental
indenture to this Indenture,  in form  satisfactory to the Trustee,  executed in
accordance  with  Article  Nine,  providing  for an  unconditional  Guarantee of
payment in full of the  principal  of,  premium,  if any,  and  interest  on the
Securities. Any such Restricted Subsidiary Guarantee shall not be subordinate in
right  of  payment  to any  Debt  of the  Restricted  Subsidiary  providing  the
Restricted Subsidiary Guarantee.

                  "Revocation" has the meaning specified in Section 1021.

                  "Rule 144A" means Rule 144A under the Securities Act.

                "Rule 144A Global Security" has the meaning specified in Section
303.

                  "Sale  and  Leaseback  Transaction"  of any  Person  means  an
arrangement with any lender or investor or to which such lender or investor is a
party  providing for the leasing by such Person of any property or asset of such
Person which has been or is being sold or  transferred  by such Person more than
365 days after the  acquisition  thereof or the  completion of  construction  or
commencement of operation thereof to such lender or investor or to any Person to
whom funds have been or are to be  advanced  by such  lender or  investor on the
security of such  property  or asset.  The stated  maturity of such  arrangement
shall be the date of the last payment of rent or any other amount due under such
arrangement  prior to the first date on which such arrangement may be terminated
by the lessee without payment of a penalty.

                  "Securities"  means any of the  Securities,  as defined in the
recitals of this  Indenture,  that are  authenticated  and delivered  under this
Indenture.  For all purposes of this Indenture,  the "Securities"  shall include
the Initial  Securities  initially  issued on October 15, 1997 and any  Exchange
Securities to be issued and exchanged for any Initial Securities pursuant to the
Registration  Agreement  and this  Indenture  and any other Notes  issued  after
October 15, 1997 under this  Indenture.  For  purposes  of this  Indenture,  all
Securities shall vote together as one series of Securities under this Indenture.

                  "Securities Act" means the Securities Act of 1933, as amended.

                "Security Register" and "Security Registrar" have the respective
meanings specified in Section 305.

                  "Senior  Notes"  means the  Company's  107/8%  Series B Senior
Notes Due 2007 which were issued on August 28, 1997 to  exchange  the  Company's
107/8% Senior Notes Due 2007, issued on March 31, 1997.

                  "Shelf Registration Statement" means the Shelf Registration
Statement as defined in the Registration Agreement.

                  "Special  Record  Date"  for  the  payment  of  any  Defaulted
Interest means a date fixed by the Trustee pursuant to Section 307.

                  "Stated  Maturity",  when used with respect to any Security or
any installment of interest  thereon,  means the date specified in such Security
as

                                                      4.1-17





the fixed date on which the  principal  amount at maturity  of such  Security or
such installment of interest is due and payable.

                  "Strategic Investor" means a Corporation, partnership or other
entity engaged in one or more Telecommunications  Businesses that has, or 80% or
more of the  Voting  Stock of which is owned by a Person  that  has,  an  equity
market  capitalization,  at the time of its initial Investment in the Company or
in a Permitted Joint Venture with the Company, in excess of $2 billion.

                  "Subordinated  Debt" means Debt of the Company as to which the
payment of principal  of (and  premium,  if any) and interest and other  payment
obligations in respect of such Debt shall be subordinate to the prior payment in
full of the  Securities  to at least the  following  extent:  (i) no payments of
principal of (or premium,  if any) or interest on or otherwise due in respect of
such  Debt  may be  permitted  for so  long as any  default  in the  payment  of
principal or Accreted  Value (or premium,  if any) or interest on the Securities
exists;  (ii) in the event that any other  Default  exists  with  respect to the
Securities,  upon notice by 25% or more in  principal  amount at maturity of the
Securities,  to the Trustee,  the Trustee shall have the right to give notice to
the Company and the holders of such Debt (or  trustees or agents  therefor) of a
payment  blockage,  and  thereafter no payments of principal of (or premium,  if
any) or interest on or  otherwise  due in respect of such Debt may be made for a
period of 179 days from the date of such notice; and (iii) such Debt may not (x)
provide for payments of principal of such Debt at the stated maturity thereof or
by  way of a  sinking  fund  applicable  thereto  or by  way  of  any  mandatory
redemption,   defeasance,  retirement  or  repurchase  thereof  by  the  Company
(including any  redemption,  retirement or repurchase  which is contingent  upon
events or  circumstances  but  excluding  any  retirement  required by virtue of
acceleration  of such Debt upon an event of  default  thereunder),  in each case
prior to the final Stated Maturity of the Securities or (y) permit redemption or
other  retirement  (including  pursuant  to an  offer  to  purchase  made by the
Company)  of such other Debt at the  option of the holder  thereof  prior to the
final  Stated  Maturity  of the  Securities,  other than a  redemption  or other
retirement  at the option of the holder of such Debt  (including  pursuant to an
offer to purchase  made by the Company)  which is  conditioned  upon a change of
control of the Company  pursuant to  provisions  substantially  similar to those
described in Section  1010 (and which shall  provide that such Debt shall not be
repurchased pursuant to such provisions prior to the Company's repurchase of the
Securities  required to be repurchased by the Company pursuant to the provisions
of Section 1010).

                  "Subsidiary"  of any Person means (i) a Corporation  more than
50% of the  combined  voting power of the  outstanding  Voting Stock of which is
owned,  directly  or  indirectly,  by  such  Person  or by  one  or  more  other
Subsidiaries  of such  Person  or by such  Person  and one or more  Subsidiaries
thereof  or (ii) any other  Person  (other  than a  Corporation)  in which  such
Person, or one or more other  Subsidiaries of such Person or such Person and one
or more other  Subsidiaries  thereof,  directly  or  indirectly,  has at least a
majority  ownership  and power to direct the  policies,  management  and affairs
thereof.

                  "Telecommunications   Assets"   means   all   assets,   rights
(contractual or otherwise) and properties,  whether tangible or intangible, used
or intended for use in connection with a Telecommunications Business.

                  "Telecommunications   Business"  means  the  business  of  (i)
transmitting, or providing services relating to the transmission of, voice, data
or video through owned or leased  transmission  facilities,  (ii)  constructing,
creating,  developing or marketing  communications  related  network  equipment,
software and other devices for use in a telecommunications

                                                      4.1-18





business or (iii)  evaluating,  participating  or pursuing any other activity or
opportunity that is primarily  related to those identified in (i) or (ii) above,
provided  that  the  determination  of  what  constitutes  a  Telecommunications
Business shall be made in good faith by the Board of Directors.

                  "Trust  Indenture Act" or "TIA" means the Trust  Indenture Act
of 1939 as in force at the date as of which this Indenture was executed,  except
as provided in Section 905.

                  "Trustee" means the Person named as the "Trustee" in the first
paragraph of this  Indenture  until a successor  Trustee  shall have become such
pursuant  to  the  applicable  provisions  of  this  Indenture,  and  thereafter
"Trustee" shall mean such successor Trustee.

                  "Unrestricted  Subsidiary" means any Subsidiary of the Company
designated as such pursuant to and in compliance with Section 1021.

                  "Vice President", when used with respect to the Company or the
Trustee,  means any vice  president,  whether or not designated by a number or a
word or words added before or after the title "vice president".

                  "Voting  Stock"  of any  Person  means  Capital  Stock of such
Person which  ordinarily  has voting  power for the  election of  directors  (or
persons performing  similar  functions) of such Person,  whether at all times or
only for so long as no  senior  class of  securities  has such  voting  power by
reason of any contingency.

                  "Wholly Owned  Subsidiary" of any Person means a Subsidiary of
such Person all of the  outstanding  Voting Stock or other  ownership  interests
(other than directors' qualifying shares) of which shall at the time be owned by
such Person or by one or more  Wholly  Owned  Subsidiaries  of such Person or by
such Person and one or more Wholly Owned Subsidiaries of such Person.

                  SECTION 102.  Compliance Certificates and Opinions.

                  Upon any  application or request by the Company to the Trustee
to take any action under any  provision  of this  Indenture,  the Company  shall
furnish to the Trustee an  Officers'  Certificate  stating  that all  conditions
precedent,  if any,  provided  for in this  Indenture  (including  any  covenant
compliance  with  which  constitutes  a  condition  precedent)  relating  to the
proposed  action have been complied with and an Opinion of Counsel  stating that
in the opinion of such counsel all such conditions precedent,  if any, have been
complied with,  except that in the case of any such application or request as to
which the furnishing of such documents is specifically required by any provision
of this  Indenture  relating  to such  particular  application  or  request,  no
additional certificate or opinion need be furnished.

                  Every certificate or opinion with respect to compliance with a
condition or covenant  provided for in this  Indenture  (other than  pursuant to
Section 1009(a)) shall include:

                  (1) a statement that each individual  signing such certificate
         or opinion has read such  covenant  or  condition  and the  definitions
         herein relating thereto;

                  (2)      a brief statement as to the nature and scope of the
         examination or investigation upon which the statements or opinions
         contained in such certificate or opinion are based;


                                                      4.1-19





                  (3) a statement that, in the opinion of each such  individual,
         he has made such examination or investigation as is necessary to enable
         him to express an informed  opinion as to whether or not such  covenant
         or condition has been complied with; and

                  (4) a  statement  as to  whether,  in the opinion of each such
         individual, such condition or covenant has been complied with.

                  SECTION 103.  Form of Documents Delivered to Trustee.

                  In any case where several matters are required to be certified
by, or covered by an opinion of, any specified  Person, it is not necessary that
all such  matters be  certified  by, or covered by the opinion of, only one such
Person,  or that they be so certified or covered by only one  document,  but one
such Person may certify or give an opinion  with respect to some matters and one
or more other such Persons as to other matters,  and any such Person may certify
or give an opinion as to such matters in one or several documents.

                  Any certificate or opinion of an officer of the Company may be
based, insofar as it relates to legal matters, upon a certificate or opinion of,
or representations by, counsel, unless such officer knows, or in the exercise of
reasonable care should know, that the certificate or opinion or  representations
with respect to the matters upon which his  certificate  or opinion is based are
erroneous.  Any such certificate or Opinion of Counsel may be based,  insofar as
it  relates  to  factual   matters,   upon  a  certificate  or  opinion  of,  or
representations  by, an officer or  officers  of the  Company  stating  that the
information  with respect to such factual  matters is in the  possession  of the
Company, unless such counsel knows, or in the exercise of reasonable care should
know,  that the certificate or opinion or  representations  with respect to such
matters are erroneous.

                  Where any Person is required  to make,  give or execute two or
more applications,  requests, consents,  certificates,  statements,  opinions or
other instruments under this Indenture,  they may, but need not, be consolidated
(with  proper  identification  of each  matter  covered  therein)  and  form one
instrument.

                  SECTION 104.  Acts of Holders.

                  (a) Any request,  demand,  authorization,  direction,  notice,
consent,  waiver or other action provided by this Indenture to be given or taken
by Holders  may be  embodied  in and  evidenced  by one or more  instruments  of
substantially  similar  tenor signed by such Holders in person or by agents duly
appointed in writing;  and, except as herein otherwise expressly provided,  such
action shall become  effective when such instrument or instruments are delivered
to the Trustee and, where it is hereby expressly required,  to the Company. Such
instrument  or  instruments  (and the  action  embodied  therein  and  evidenced
thereby) are herein  sometimes  referred to as the "Act" of the Holders  signing
such instrument or instruments.  Proof of execution of any such instrument or of
a writing  appointing any such agent shall be sufficient for any purpose of this
Indenture  and (subject to Section 601)  conclusive  in favor of the Trustee and
the Company, if made in the manner provided in this Section.

                  (b) The fact and date of the  execution  by any  Person of any
such  instrument  or writing may be proved by the affidavit of a witness of such
execution or by a certificate of a notary public or other officer  authorized by
law to take  acknowledgments  of deeds,  certifying that the individual  signing
such instrument or writing acknowledged to him the execution thereof. Where such
execution  is by a  signer  acting  in a  capacity  other  than  his  individual
capacity, such certificate or affidavit shall also constitute

                                                      4.1-20





sufficient  proof of  authority.  The fact and date of the execution of any such
instrument or writing,  or the authority of the Person  executing the same,  may
also be proved in any other manner that the Trustee deems sufficient.

                  (c) The  principal  amount at maturity  and serial  numbers of
Securities held by any Person, and the date of holding the same, shall be proved
by the Security Register.

                  (d)  If  the  Company   shall  solicit  from  the  Holders  of
Securities  any request,  demand,  authorization,  direction,  notice,  consent,
waiver or other Act, the Company  may, at its option,  by or pursuant to a Board
Resolution,  fix in  advance  a record  date for the  determination  of  Holders
entitled  to  give  such  request,  demand,  authorization,  direction,  notice,
consent, waiver or other Act, but the Company shall have no obligation to do so.
Notwithstanding  TIA Section  316(c),  such record date shall be the record date
specified  in or  pursuant to such Board  Resolution,  which shall be a date not
earlier  than  the date 30 days  prior  to the  first  solicitation  of  Holders
generally in connection  therewith and not later than the date such solicitation
is  completed.   If  such  a  record  date  is  fixed,  such  request,   demand,
authorization,  direction,  notice,  consent,  waiver  or other Act may be given
before or after such record date, but only the Holders of record at the close of
business on such  record date shall be deemed to be Holders for the  purposes of
determining   whether  Holders  of  the  requisite   proportion  of  Outstanding
Securities  have  authorized  or agreed or  consented to such  request,  demand,
authorization,  direction,  notice,  consent,  waiver or other Act, and for that
purpose the  Outstanding  Securities  shall be computed as of such record  date;
provided that no such authorization, agreement or consent by the Holders on such
record date shall be deemed effective unless it shall become effective  pursuant
to the  provisions  of this  Indenture  not later than eleven  months  after the
record date.

                  (e) Any request,  demand,  authorization,  direction,  notice,
consent,  waiver or other Act of the  Holder of any  Security  shall  bind every
future Holder of the same Security and the Holder of every Security  issued upon
the registration of transfer thereof or in exchange  therefor or in lieu thereof
in respect of  anything  done,  omitted or suffered to be done by the Trustee or
the Company in reliance thereon,  whether or not notation of such action is made
upon such Security.

                  SECTION 105.  Notices, Etc., to Trustee and Company.

                  Any  request,  demand,   authorization,   direction,   notice,
consent,  waiver or Act of Holders or other  document  provided or  permitted by
this Indenture to be made upon, given or furnished to, or filed with,

                  (1)      the Trustee by any Holder or by the Company shall be
         sufficient for every purpose hereunder if made, given, furnished or
         filed in writing to or with the Trustee at its Corporate Trust Office,
         Attention:  Corporate Market Services, or

                  (2) the  Company  by the  Trustee  or by any  Holder  shall be
         sufficient  for  every  purpose   hereunder  (unless  otherwise  herein
         expressly  provided)  if in writing  and  mailed,  first-class  postage
         prepaid, to the Company addressed to it at the address of its principal
         office  specified in the first paragraph of this  Indenture,  or at any
         other  address  previously  furnished  in writing to the Trustee by the
         Company.

                  SECTION 106.  Notice to Holders; Waiver.


                                                      4.1-21





                  Where  this  Indenture  provides  for  notice  of any event to
Holders by the Company or the Trustee,  such notice shall be sufficiently  given
(unless  otherwise  herein  expressly   provided)  if  in  writing  and  mailed,
first-class  postage  prepaid,  to each Holder  affected  by such event,  at the
address of such Holder as it appears in the  Security  Register,  not later than
the latest  date,  and not earlier than the earliest  date,  prescribed  for the
giving of such  notice.  In any case  where  notice to Holders is given by mail,
neither the failure to mail such notice, nor any defect in any notice so mailed,
to any  particular  Holder  shall  affect the  sufficiency  of such  notice with
respect to other  Holders.  Any notice  mailed to a Holder in the manner  herein
prescribed  shall be  conclusively  deemed to have been received by such Holder,
whether or not such Holder actually  receives such notice.  Where this Indenture
provides  for notice in any manner,  such notice may be waived in writing by the
Person  entitled to receive such notice,  either before or after the event,  and
such waiver shall be the equivalent of such notice. Waivers of notice by Holders
shall be filed  with the  Trustee,  but such  filing  shall  not be a  condition
precedent to the validity of any action taken in reliance upon such waiver.

                  In case by reason of the  suspension of or  irregularities  in
regular mail service or by reason of any other cause, it shall be  impracticable
to mail notice of any event to Holders  when such notice is required to be given
pursuant  to any  provision  of this  Indenture,  then any manner of giving such
notice  as  shall  be  satisfactory  to the  Trustee  shall  be  deemed  to be a
sufficient giving of such notice for every purpose hereunder.

                  SECTION 107.  Effect of Headings and Table of Contents.

                  The  Article  and  Section  headings  herein  and the Table of
Contents are for convenience only and shall not affect the construction hereof.

                  SECTION 108.  Successors and Assigns.

                  All covenants and  agreements in this Indenture by the Company
shall bind its successors and assigns, whether so expressed or not.

                  SECTION 109.  Separability Clause.

                  In case any provision in this  Indenture or in the  Securities
shall  be  invalid,  illegal  or  unenforceable,   the  validity,  legality  and
enforceability  of the remaining  provisions shall not in any way be affected or
impaired thereby.

                  SECTION 110.  Benefits of Indenture.

                  Nothing in this  Indenture  or in the  Securities,  express or
implied,  shall give to any Person,  other than the parties  hereto,  any Paying
Agent, any Security Registrar and their successors hereunder and the Holders any
legal or equitable right, remedy or claim under this Indenture.

                  SECTION 111.  Governing Law.

                  This  Indenture  and the  Securities  shall be governed by and
construed in accordance with the law of the State of New York.

                  SECTION 112.  Conflict with Trust Indenture Act.

                  Prior  to the  issuance  of  the  Exchange  Securities  or the
effectiveness of the Shelf Registration Statement, the Trust Indenture Act shall
apply as a matter of contract to this Indenture for purposes of  interpretation,
construction  and  defining  the  rights  and  obligations  hereunder.  Upon the
issuance of the Exchange Securities or the effectiveness

                                                      4.1-22





of the Shelf  Registration  Statement,  this  Indenture  shall be subject to the
provisions  of the  Trust  Indenture  Act that are  required  to be part of this
Indenture and shall, to the extent  applicable,  be governed by such provisions.
If any provision hereof limits, qualifies or conflicts with any provision of the
Trust  Indenture  Act or another  provision  which is  required  or deemed to be
included in this Indenture by any of the provisions of the Trust  Indenture Act,
such provision or requirement of the Trust Indenture Act shall control.

                  If any  provision of this  Indenture  modifies or excludes any
provision of the Trust  Indenture  Act that may be so modified or excluded,  the
latter  provision  shall be deemed to apply to this  Indenture as so modified or
excluded, as the case may be.

                  SECTION 113.  Legal Holidays.

                  In any case where any Interest Payment Date,  Redemption Date,
or Stated Maturity or Maturity of any Security shall not be a Business Day, then
(notwithstanding  any other  provision of this  Indenture or of the  Securities)
payment of principal or Accreted Value (or premium, if any) or interest need not
be made on such date, but may be made on the next  succeeding  Business Day with
the same force and effect as if made on the Interest  Payment Date or Redemption
Date or at the Stated  Maturity or  Maturity;  provided  that no interest  shall
accrue for the period  from and after such  Interest  Payment  Date,  Redemption
Date, Stated Maturity or Maturity, as the case may be.

                  SECTION 114.  No Personal Liability of Directors, Officers,
Employees and Stockholders.

                  No director, officer, employee, incorporator or stockholder of
the  Company,  as such,  shall have any  liability  for any  obligations  of the
Company  under the  Securities  or this  Indenture or for any claim based on, in
respect  of, or by reason of,  such  obligations  or their  creation,  solely by
reason  of  its  status  as  a  director,  officer,  employee,  incorporator  or
stockholder  of the  Company.  By accepting a Security,  each Holder  waives and
releases all such  liability (but only such  liability).  The waiver and release
are part of the consideration for issuance of the Securities.

                  SECTION 115.  Independence of Covenants.

                  All covenants and agreements in this Indenture  shall be given
independent  effect so that if a particular action or condition is not permitted
by any of such  covenants,  the fact that it would be  permitted by an exception
to, or be otherwise  within the limitations of, another covenant shall not avoid
the occurrence of a Default if such action is taken or condition exists.

                  SECTION 116.  Exhibits.

                  All exhibits attached hereto are by this reference made a part
hereof with the same effect as if herein set forth in full.

                  SECTION 117.  Counterparts.

                  This Indenture may be executed in any number of  counterparts,
each of  which  shall  be an  original;  but such  counterparts  shall  together
constitute but one and the same instrument.


                                                      4.1-23





                  SECTION 118.  Duplicate Originals.

                  The parties  may sign any number of copies of this  Indenture.
Each signed copy shall be an original,  but all of them  together  represent the
same agreement.


                                                    ARTICLE TWO

                                                  SECURITY FORMS

                  SECTION 201.  Forms Generally.

                  The Securities and the Trustee's certificate of authentication
with respect thereto shall be in  substantially  the form set forth in Exhibit A
hereto,  with such appropriate  insertions,  omissions,  substitutions and other
variations  as are required or permitted  by this  Indenture,  and may have such
letters,   numbers  or  other  marks  of  identification  and  such  legends  or
endorsements  placed  thereon as may be required to comply with the rules of any
securities  exchange or system on which the Securities may be listed or eligible
for trading or as may,  consistently  herewith,  be  determined  by the officers
executing such  Securities,  as evidenced by their  execution of the Securities.
Any portion of the text of any Security may be set forth on the reverse thereof,
with an appropriate reference thereto on the face of the Security.

                  The definitive  Securities  shall be printed,  lithographed or
engraved  on  steel-engraved  borders  or may be  produced  in any other  manner
permitted  by the  rules of any  securities  exchange  or  system  on which  the
Securities  may be listed or eligible  for  trading,  all as  determined  by the
officers  of the  Company  executing  such  Securities,  as  evidenced  by their
execution of such Securities.


                                                   ARTICLE THREE

                                                  THE SECURITIES

                  SECTION 301.  Title and Terms.

                  The aggregate principal amount at maturity of Securities which
may  be  authenticated   and  delivered  under  this  Indenture  is  limited  to
$555,890,000,   except  for   Securities   authenticated   and  delivered   upon
registration of transfer of, or in exchange for, or in lieu of, other Securities
pursuant to Section 304, 305, 306, 906, 1010, 1018 or 1108.

                  The Initial  Securities  shall be known and  designated as the
"9.47%  Senior  Discount  Notes Due 2007" and the Exchange  Securities  shall be
known as the "9.47% Series B Senior Discount Notes". Their Stated Maturity shall
be October 15, 2007, and they shall bear interest at the rate of 9.47% per annum
from October 15, 2002,  or from the most recent  Interest  Payment Date to which
interest  has been paid or duly  provided  for,  payable  on April 15,  2003 and
semiannually  thereafter  on April 15 and  October  15, in each year and at said
Stated Maturity,  until the principal amount at maturity thereof is paid or duly
provided for; provided,  however, that the Company may elect, upon not less than
60 days' prior notice to the Holders and the Trustee in accordance  with Section
105 and  Section 106 hereof,  to  commence  the accrual of cash  interest on all
Outstanding  Securities  on any April 15 or October 15 on or after  October  15,
2000 and prior to October  15,  2002,  in which case the  Outstanding  principal
amount at Stated  Maturity of each  Security will on such  commencement  date be
reduced to the Accreted Value of such Security as of such

                                                      4.1-24





date and cash  interest  shall be payable with respect to such  Security on each
April 15 and October 15 thereafter.  Interest will be computed on the basis of a
360-day year comprised of twelve 30-day months.

                  Principal or Accreted Value of, premium,  if any, and interest
on the  Securities  will be payable,  and the  Securities  may be  exchanged  or
transferred,  at the  office or agency of the  Company  in the City of New York,
which,  unless  otherwise  provided by the  Company,  will be the offices of the
Trustee.  At the option of the Company,  interest may be paid by check mailed to
addresses of the Persons  entitled thereto as such addresses shall appear on the
Security Register.

                  The interest rate on the  Securities is subject to increase by
the addition of Liquidated Interest and otherwise,  all as set forth or referred
to in the text of the Securities appearing in Exhibit A hereto.

                  The  Securities  shall be  redeemable  as  provided in Article
Eleven.

                  At the  election  of  the  Company,  the  entire  Debt  on the
Securities  or certain of the  Company's  obligations  and covenants and certain
Events of Default thereunder may be defeased as provided in Article Twelve.

                  The  Securities  will be senior  unsecured  obligations of the
Company,  ranking  pari passu in right of payment  with all  existing and future
senior unsecured Debt of the Company,  and will be senior in right of payment to
all existing and future Subordinated Debt of the Company.

                  SECTION 302.  Denominations.

                  The  Securities  will be issued  without  coupons and in fully
registered form only, in minimum  denominations  of $1,000  principal  amount at
maturity and integral multiples thereof.

                  SECTION 303.  Execution, Authentication, Delivery and Dating.

                  The  Securities  shall be executed on behalf of the Company by
its  Chief  Executive  Officer,  its  President  or a Vice  President  under its
corporate seal reproduced thereon. The signature of any of these officers on the
Securities  may be manual or facsimile  signatures  of the present or any future
such  authorized  officer and may be imprinted or  otherwise  reproduced  on the
Securities.  The seal of the Company  may be in the form of a facsimile  thereof
and  may  be  impressed,  affixed,  imprinted  or  otherwise  reproduced  on the
Securities.

                  Securities  bearing  the  manual or  facsimile  signatures  of
individuals  who were at any time the proper  officers of the Company shall bind
the Company, notwithstanding that such individuals or any of them have ceased to
hold such offices prior to the authentication and delivery of such Securities or
did not hold such  offices  at the date of such  Securities.  In  addition,  any
Security  may be  signed on behalf of the  Company  by such  Persons  as, at the
actual date of the execution of such Security,  shall be the proper  officers of
the Company,  although at the date of such  Security or of the execution of this
Indenture any such Person was not such officer.

                  At any time and from  time to time  after  the  execution  and
delivery of this Indenture,  the Company may deliver Securities  executed by the
Company to the Trustee for authentication, together with a Company Order for the
authentication  and delivery of such  Securities,  and the Trustee in accordance
with such Company Order shall authenticate and deliver such Securities.

                  Each Security shall be dated the date of its authentication.

                                                      4.1-25





                  No  Security  shall be  entitled  to any  benefit  under  this
Indenture or be valid or obligatory for any purpose unless there appears on such
Security a certificate of authentication  substantially in the form provided for
herein  duly  executed  by the  Trustee  by manual  signature  of an  authorized
signatory,  and such certificate upon any Security shall be conclusive evidence,
and the only  evidence,  that  such  Security  has been duly  authenticated  and
delivered hereunder and is entitled to the benefits of this Indenture.

                  The Trustee shall  authenticate  Securities for original issue
in an aggregate  principal  amount at maturity not to exceed  $555,890,000  upon
receipt of a Company Order, which shall,  specify the amount of Securities to be
authenticated,  the  names of the  persons  in which  such  Securities  shall be
registered  and the date on which such  Securities are to be  authenticated  and
direct the Trustee to authenticate  such  Securities  together with an Officers'
Certificate  certifying  that all  conditions  precedent to the issuance of such
Securities  contained  herein have been complied with.  The aggregate  principal
amount at  maturity  of  Securities  Outstanding  at any time  shall not  exceed
$555,890,000, except as provided in Section 304.

                  Except as described  below,  the Securities  will be deposited
with, or on behalf of, the Depository,  and registered in the name of Cede & Co.
as  the  Depository's   nominee  in  the  form  of  a  global  note  certificate
substantially  in the form of Exhibit A (the "Rule 144A Global  Security"),  for
credit to the  respective  accounts of the  beneficial  owners of the Securities
represented thereby.

                  Securities  purchased  by persons  outside  the United  States
pursuant to sales in accordance with Regulation S under the Securities Act shall
be deposited with, or on behalf of, the  Depository,  and registered in the name
of Cede & Co. as the Depository's nominee in the form of one or more global note
certificates substantially in the form of Exhibit A (each a "Regulation S Global
Security"),  for credit to the respective  accounts of the beneficial  owners of
the Securities  represented thereby (or such other accounts as they may direct),
provided  that upon such  deposit  all such  Securities  shall be credited to or
through  accounts  maintained at the Depository by or on behalf of the Euroclear
System or Cedel Bank, societe anonyme.  Securities represented by a Regulation S
Global  Security  will not be  exchangeable  for Physical  Securities  until the
expiration  of the  "40-day  restricted  period"  within  the  meaning  of  Rule
903(c)(3) of Regulation S under the Securities Act.

                  In case the  Company,  pursuant  to  Article  Eight,  shall be
consolidated or merged with or into any other Person or shall convey,  transfer,
lease or otherwise  dispose of its  properties  and assets  substantially  as an
entirety  to  any  Person,   and  the  successor   Person  resulting  from  such
consolidation,  or surviving  such merger,  or into which the Company shall have
been merged,  or the Person which shall have  received a  conveyance,  transfer,
lease or other  disposition  as  aforesaid,  shall have  executed  an  indenture
supplemental  hereto with the  Trustee  pursuant  to Article  Eight,  any of the
Securities  authenticated  or  delivered  prior to such  consolidation,  merger,
conveyance,  transfer, lease or other disposition may, from time to time, at the
request of the successor Person,  be exchanged for other Securities  executed in
the name of the successor  Person with such changes in  phraseology  and form as
may be  appropriate,  but otherwise in substance of like tenor as the Securities
surrendered  for such exchange and of like  principal  amount;  and the Trustee,
upon Company Request of the successor  Person,  shall  authenticate  and deliver
Securities  as specified in such  request for the purpose of such  exchange.  If
Securities shall at any time be authenticated and delivered in any new name of a
successor  Person  pursuant to this Section in exchange or  substitution  for or
upon  registration of transfer of any Securities,  such successor Person, at the
option of the Holders but without

                                                      4.1-26





expense to them,  shall  provide for the exchange of all  Securities at the time
Outstanding for Securities authenticated and delivered in such new name.

                  SECTION 304.  Temporary Securities.

                  Pending the preparation of definitive Securities,  the Company
may execute,  and upon Company Order the Trustee shall authenticate and deliver,
temporary Securities which are printed, lithographed,  typewritten, mimeographed
or otherwise  produced,  in any authorized  denomination,  substantially  of the
tenor of the  definitive  Securities  in lieu of which  they are issued and with
such appropriate  insertions,  omissions,  substitutions and other variations as
the officers executing such Securities may determine,  as conclusively evidenced
by their execution of such Securities.

                  If  temporary  Securities  are issued,  the Company will cause
definitive  Securities  to be prepared  without  unreasonable  delay.  After the
preparation  of  definitive  Securities,   the  temporary  Securities  shall  be
exchangeable   for  definitive   Securities  upon  surrender  of  the  temporary
Securities  at the office or agency of the Company  designated  for such purpose
pursuant to Section  1002,  without  charge to the Holder.  Upon  surrender  for
cancellation of any one or more temporary Securities,  the Company shall execute
and the Trustee  shall  authenticate  and  deliver in  exchange  therefor a like
principal   amount  at  maturity  of   definitive   Securities   of   authorized
denominations.  Until  so  exchanged,  the  temporary  Securities  shall  in all
respects be entitled to the same  benefits  under this  Indenture as  definitive
Securities.

              SECTION 305.  Registration, Registration of Transfer and Exchange.

                  The  Company  shall  cause to be kept at the  Corporate  Trust
Office of the Trustee a register (the register  maintained in such office and in
any other  office or agency  designated  pursuant to Section  1002 being  herein
sometimes  referred to as the  "Security  Register")  in which,  subject to such
reasonable  regulations as it may  prescribe,  the Company shall provide for the
registration  of  Securities  and of transfers and exchange of  Securities.  The
Security  Register  shall be in written  form or any other form capable of being
converted into written form within a reasonable  time. At all reasonable  times,
the Security Register shall be open to inspection by the Trustee. The Trustee is
hereby initially appointed as security registrar (the "Security  Registrar") for
the purpose of registering  Securities and transfers and exchanges of Securities
as herein provided.

                  Upon surrender for registration of transfer of any Security at
the office or agency of the Company  designated  pursuant to Section  1002,  the
Company shall  execute,  the Trustee  shall  authenticate  and deliver,  and the
Security  Registrar shall register,  if the  requirements,  of such transfer are
met, in the name of the designated  transferee or  transferees,  one or more new
Securities of any authorized  denomination or  denominations of a like aggregate
principal amount at maturity.

                  At the option of the Holder,  Securities  may be exchanged for
other  Securities  of  any  authorized  denomination  and  of a  like  aggregate
principal  amount at maturity  (including an exchange of Initial  Securities for
Exchange  Securities),  upon surrender of the Securities to be exchanged at such
office or agency.  Whenever any Securities are so surrendered for exchange,  the
Company shall  execute,  the Trustee  shall  authenticate  and deliver,  and the
Security  Registrar shall register,  the Securities  which the Holder making the
exchange is entitled to receive, provided that no exchange of Initial Securities
for  Exchange  Securities  shall  occur  until an  Exchange  Offer  Registration
Statement shall have been declared effective by the Commission

                                                      4.1-27





(confirmed in an Officer's  Certificate)  and that the Initial  Securities to be
exchanged for the Exchange Securities shall be cancelled by the Trustee.

                  All  Securities  issued upon any  registration  of transfer or
exchange of Securities shall be the valid obligations of the Company, evidencing
the same debt,  and entitled to the same benefits under this  Indenture,  as the
Securities surrendered upon such registration of transfer or exchange.

                  Every Security  presented or surrendered  for  registration of
transfer or for  exchange  shall (if so required by the Company or the  Security
Registrar)  be duly  endorsed,  or be  accompanied  by a written  instrument  of
transfer,  in form satisfactory to the Company and the Security Registrar,  duly
executed by the Holder thereof or his attorney duly authorized in writing.

                  No  service  charge  shall  be made  for any  registration  of
transfer or exchange or  redemption of  Securities,  but the Company may require
payment of a sum sufficient to cover any tax or other  governmental  charge that
may be imposed in connection  with any  registration  of transfer or exchange of
Securities,  other than exchanges  pursuant to Section 304, 906,  1010,  1018 or
1108 not involving any transfer.

                  The Company  shall not be required (i) to issue,  register the
transfer of or exchange any Security during a period beginning at the opening of
business 15 days before the selection of Securities to be redeemed under Section
1104 and  ending  at the close of  business  on the day of such  mailing  of the
relevant  notice of  redemption  or (ii) to register the transfer of or exchange
any  Security  so  selected  for  redemption  in whole or in  part,  except  the
unredeemed portion of any Security being redeemed in part.

                 SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities.

                  If (i) any mutilated Security is surrendered to the Trustee or
(ii) the Company and the Trustee receive  evidence to their  satisfaction of the
destruction,  loss or theft of any  Security,  and  there  is  delivered  to the
Company and the Trustee such security or indemnity as may be required by them to
save each of them harmless, then, in the absence of notice to the Company or the
Trustee  that such  Security  has been  acquired by a bona fide  purchaser,  the
Company shall execute and upon Company Order the Trustee shall  authenticate and
deliver,  in  exchange  for any such  mutilated  Security or in lieu of any such
destroyed,  lost or stolen Security,  a new Security of like tenor and principal
amount at maturity, bearing a number not contemporaneously outstanding.

                  In case any such mutilated, destroyed, lost or stolen Security
has become or is about to become due and payable,  the Company in its discretion
may, instead of issuing a new Security, pay such Security.

                  Upon the issuance of any new Security under this Section,  the
Company may require  the payment of a sum  sufficient  to cover any tax or other
governmental  charge  that may be  imposed  in  relation  thereto  and any other
expenses (including the fees and expenses of the Trustee) connected therewith.

                  Every new Security  issued pursuant to this Section in lieu of
any mutilated,  destroyed,  lost or stolen Security shall constitute an original
additional contractual obligation of the Company,  whether or not the mutilated,
destroyed,  lost or stolen Security shall be at any time  enforceable by anyone,
and  shall  be  entitled  to  all  benefits  of  this   Indenture   equally  and
proportionately with any and all other Securities duly issued hereunder.


                                                      4.1-28





                  The  provisions  of  this  Section  are  exclusive  and  shall
preclude (to the extent  lawful) all other  rights and remedies  with respect to
the replacement or payment of mutilated, destroyed, lost or stolen Securities.

                  SECTION 307.  Payment of Interest; Interest Rights Preserved.

                  Interest on any Security  which is payable,  and is punctually
paid or duly  provided  for, on any  Interest  Payment Date shall be paid to the
Person in whose name such Security (or one or more  Predecessor  Securities)  is
registered at the close of business on the Regular Record Date for such interest
at the office or agency of the Company  maintained for such purpose  pursuant to
Section 1002;  provided,  however,  that each installment of interest may at the
Company's  option be paid by  mailing a check for such  interest,  payable to or
upon the written order of the Person entitled  thereto  pursuant to Section 308,
to the address of such Person as it appears in the Security Register.

                  Any  interest on any  Security  which is  payable,  but is not
punctually  paid or duly  provided  for,  on any  Interest  Payment  Date  shall
forthwith cease to be payable to the Holder on the Regular Record Date by virtue
of having  been such  Holder,  and such  defaulted  interest  and (to the extent
lawful) interest on such defaulted  interest at the rate borne by the Securities
(such  defaulted  interest  and  interest  thereon  herein  collectively  called
"Defaulted  Interest") may be paid by the Company, at its election in each case,
as provided in paragraph (1) or (2) below:

                  (1) The  Company  may elect to make  payment of any  Defaulted
         Interest  to the  Persons  in whose  names  the  Securities  (or  their
         respective  Predecessor  Securities)  are  registered  at the  close of
         business on a Special  Record  Date for the  payment of such  Defaulted
         Interest,  which shall be fixed in the  following  manner.  The Company
         shall notify the Trustee in writing of the amount of Defaulted Interest
         proposed  to be paid  on each  Security  and the  date of the  proposed
         payment,  and at the  same  time the  Company  shall  deposit  with the
         Trustee an amount of money equal to the aggregate amount proposed to be
         paid in respect of such Defaulted  Interest or shall make  arrangements
         satisfactory  to the Trustee for such deposit  prior to the date of the
         proposed payment, such money when deposited to be held in trust for the
         benefit of the Persons  entitled to such Defaulted  Interest as in this
         clause provided.  Thereupon the Trustee shall fix a Special Record Date
         for the payment of such Defaulted Interest which shall be not more than
         15 days and not  less  than 10 days  prior to the date of the  proposed
         payment  and not less than 10 days after the  receipt by the Trustee of
         the notice of the proposed  payment.  The Trustee shall promptly notify
         the Company of such  Special  Record  Date,  and in the name and at the
         expense of the Company,  shall cause notice of the proposed  payment of
         such  Defaulted  Interest  and the Special  Record Date  therefor to be
         given in the manner  provided for in Section 106, not less than 10 days
         prior to such Special  Record Date.  Notice of the proposed  payment of
         such  Defaulted  Interest and the Special  Record Date therefor  having
         been so given, such Defaulted  Interest shall be paid to the Persons in
         whose names the Securities (or their respective Predecessor Securities)
         are registered at the close of business on such Special Record Date and
         shall no longer be payable pursuant to the following paragraph (2).

                  (2) The Company may make payment of any Defaulted  Interest in
         any other lawful manner not  inconsistent  with the requirements of any
         securities  exchange or system on which the Securities may be listed or
         eligible for  trading,  and upon such notice as may be required by such
         exchange  or  system,  if,  after  notice  given by the  Company to the
         Trustee

                                                      4.1-29





         of the proposed payment pursuant to this clause, such manner of payment
         shall be deemed practicable by the Trustee.

                  Subject to the  foregoing  provisions  of this  Section,  each
Security  delivered under this Indenture upon  registration of transfer of or in
exchange for or in lieu of any other Security shall carry the rights to interest
accrued and unpaid, and to accrue, which were carried by such other Security.

                  SECTION 308.  Persons Deemed Owners.

                  Prior to the due presentment of a Security for registration of
transfer,  the Company,  the Trustee and any agent of the Company or the Trustee
may treat the Person in whose name such  Security is  registered as the owner of
such  Security  for the purpose of  receiving  payment of  principal or Accreted
Value of (and premium, if any) and (subject to Sections 305 and 307) interest on
such  Security  and for all  other  purposes  whatsoever,  whether  or not  such
Security be overdue,  and none of the  Company,  the Trustee or any agent of the
Company or the Trustee shall be affected by notice to the contrary.

                  SECTION 309.  Cancellation.

                  All   Securities   surrendered   for   payment,    redemption,
registration  of transfer or exchange  shall, if surrendered to any Person other
than the Trustee, be delivered to the Trustee and shall be promptly cancelled by
it. The Company may at any time  deliver to the  Trustee  for  cancellation  any
Securities  previously  authenticated and delivered  hereunder which the Company
may have acquired in any manner  whatsoever,  and may deliver to the Trustee (or
to any other Person for delivery to the Trustee) for cancellation any Securities
previously  authenticated  hereunder  which the Company has not issued and sold,
and all Securities so delivered shall be promptly  cancelled by the Trustee.  If
the Company shall so acquire any of the Securities,  however,  such  acquisition
shall  not  operate  as  a  redemption  or  satisfaction  of  the   indebtedness
represented by such Securities  unless and until the same are surrendered to the
Trustee for cancellation.  No Securities shall be authenticated in lieu of or in
exchange for any  Securities  cancelled as provided in this  Section,  except as
expressly  permitted by this  Indenture.  All cancelled  Securities  held by the
Trustee  shall be disposed of by the Trustee in  accordance  with its  customary
procedures and  certification of their disposal  delivered to the Company unless
by Company Order the Company shall direct that cancelled  Securities be returned
to it.

                  SECTION 310.  Computation of Interest.

                  Interest on the Securities shall be computed on the basis of a
360-day year comprised of twelve 30-day months.

                  SECTION 311.  CUSIP Number.

                  The Company in issuing the Securities may use a "CUSIP" number
(if then  generally in use), and if so, the Trustee may use the CUSIP numbers in
notices of  redemption  or  exchange  as a  convenience  to  Holders;  provided,
however, that any such notice may state that no representation is made as to the
correctness  or  accuracy  of the CUSIP  number  printed in the notice or on the
Securities,  and that  reliance  may be placed only on the other  identification
numbers printed on the Securities. The Company shall promptly notify the Trustee
in writing of any change in the CUSIP number of the Securities.

                  SECTION 312.  Book-Entry Provisions for Global Securities.


                                                      4.1-30





                  (a) The Global Securities initially shall (i) be registered in
the name of the Depository or the nominee of such Depository,  (ii) be delivered
to the Trustee as custodian  for such  Depository  and (iii) bear legends as set
forth in Exhibit A.

                  Members  of,  or  participants  in,  the  Depository   ("Agent
Members")  shall have no rights under this  Indenture with respect to any Global
Security  held  on  their  behalf  by  the  Depository,  or the  Trustee  as its
custodian,  or under the Global  Security,  and the Depository may be treated by
the  Company,  the  Trustee  and any agent of the  Company or the Trustee as the
absolute   owner  of  the  Global   Security   for  all   purposes   whatsoever.
Notwithstanding  the foregoing,  nothing  herein shall prevent the Company,  the
Trustee or any agent of the  Company or the Trustee  from  giving  effect to any
written certification,  proxy or other authorization furnished by the Depository
or impair,  as between the Depository  and its Agent  Members,  the operation of
customary  practices  governing the exercise of the rights of a beneficial owner
of any Security.

                  (b)  Transfers  of  Global  Securities  shall  be  limited  to
transfers in whole, but not in part, to the Depository,  its successors or their
respective  nominees.  Interests  of  beneficial  owners in a Rule  144A  Global
Security may be  transferred or exchanged for interests in a Regulation S Global
Security,  and interests of beneficial  owners in a Regulation S Global Security
may be transferred or exchanged for interests in a Rule 144A Global Security, in
each case in accordance  with the rules and procedures of the Depository and the
provisions of Section 313. In addition, Physical Securities shall be transferred
to all beneficial owners in exchange for their beneficial  interests in a Global
Security if (i) the  Depository  notifies  the Company  that it is  unwilling or
unable to continue as a  depository  for such Global  Security or if at any time
the Depository ceases to be a clearing agency registered under the Exchange Act,
and a successor  depository is not appointed by the Company within 90 days, (ii)
the  Company  executes  and  delivers  to the  Trustee a notice that such Global
Security  shall  be so  transferable,  registrable  and  exchangeable,  and such
transfer  shall be  registrable,  or (iii)  there  shall  have  occurred  and be
continuing  a  Default  or Event  of  Default  with  respect  to the  Securities
represented by such Global Security.

                  (c) In connection with the transfer of Global Securities as an
entirety to beneficial  owners pursuant to paragraph (b), the Global  Securities
shall be deemed to be  surrendered  to the  Trustee  for  cancellation,  and the
Company shall execute,  and the Trustee shall authenticate and deliver,  to each
beneficial  owner  identified by the  Depository in exchange for its  beneficial
interest  in the  Global  Securities,  an equal  aggregate  principal  amount at
maturity of Physical Securities of like tenor of authorized denominations.

                  (d)  Any  Physical  Security  delivered  in  exchange  for  an
interest in a Global  Security  pursuant to  paragraph  (c) of this  Section 312
shall,  except as otherwise  provided by (b)(1)(x)  and paragraph (d) of Section
313, bear the legend regarding transfer restrictions  applicable to the Physical
Securities set forth in Exhibit A.

                  (e) The Holder of any Global  Security  may grant  proxies and
otherwise  authorize  any person,  including  Agent Members and persons that may
hold  interests  through  Agent  Members,  to take any action  which a Holder is
entitled to take under this Indenture or the Securities.

                  SECTION 313.  Special Transfer Provisions.

                  (a)   Transfers to Non-QIB Institutional Accredited Investors.
The Initial Securities shall not be transferred to any Person that is not a
QIB or a non-U.S. Person.

                                                      4.1-31





                  (b)   Transfers to Non-U.S. Persons.  The following provisions
shall apply with respect to the registration of any proposed transfer of an
Initial Security to any non-U.S. person:

                  (1) the Security  Registrar shall register the transfer of any
         Initial Security if (x) the requested transfer is not prior to the date
         which is two years (or such shorter period as may be prescribed by Rule
         144(k) under the Securities Act or any successor provision  thereunder)
         after the later of the original issue date of such Initial Security (or
         of any  Predecessor  Security)  or the last day on which the Company or
         any Affiliate of the Company was the owner of such Initial  Security or
         any Predecessor  Security or (y) the proposed  transferee has delivered
         to the Security  Registrar a certificate  substantially  in the form of
         Exhibit B hereto; and

                  (2) the Security  Registrar shall register the transfer of any
         Initial Security if the proposed  transferor is an Agent Member holding
         a beneficial  interest in a Rule 144A Global Security,  upon receipt by
         the Security  Registrar  of (x) the  certificate,  if any,  required by
         paragraph (1) above and (y)  instructions  given in accordance with the
         Depository's and the Security Registrar's procedures;

whereupon the Security Registrar shall reflect on its books and records the date
of such  transfer and (A) (if the  transfer  involves a transfer of a beneficial
interest in a Rule 144A Global  Security) a decrease in the principal  amount of
such Rule 144A Global Security in an amount equal to the principal  amount to be
transferred and (B) an increase in the principal amount of a Regulation S Global
Security in an amount equal to the principal amount to be transferred.

                  (c)  Private  Placement  Legend.   Upon  the  registration  of
transfer,  exchange or replacement of Initial Securities, the Security Registrar
shall deliver only Initial  Securities  that bear the Private  Placement  Legend
unless  (i) (x) the  circumstances  contemplated  by  clause  (b)(1)(x)  of this
Section 313 exist or (y) such  Security  has been sold  pursuant to an effective
registration  statement  under the Securities Act and (ii) there is delivered to
the  Security  Registrar  and the  Trustee  an  Opinion  of  Counsel  reasonably
satisfactory  to the Company and the  Trustee to the effect  that  neither  such
legend  nor the  related  restrictions  on  transfer  are  required  in order to
maintain compliance with the provisions of the Securities Act.

                  (d)      Other Transfers.  If a Holder proposes to transfer an
Initial Security pursuant to any exemption from the registration requirements
of the Securities Act other than as provided for by Section 313(a) and 313(b),
the Security Registrar shall only register such transfer or exchange if such
transferor delivers to the Security Registrar and the Trustee an Opinion of
Counsel satisfactory to the Company and the Security Registrar that such
transfer is in compliance with the Securities Act and the terms of this
Indenture; provided that the Company may, based upon the opinion of its
counsel, instruct the Security Registrar by a Company Order not to register
such transfer in any case where the proposed transferee is not a QIB or a non-
U.S. person.

                  (e) General.  By its  acceptance  of any Security  bearing the
Private  Placement  Legend,  each  Holder of such a  Security  acknowledges  the
restrictions on transfer of such Security set forth in this Indenture and in the
Private  Placement Legend and agrees that it will transfer such Security only as
provided in this Indenture.


                                                      4.1-32





                  The Security  Registrar  shall  retain  copies of all letters,
notices and other  written  communications  received  pursuant to Section 312 or
this  Section  313 for a period of two years,  after  which  time such  letters,
notices and other  written  communications  shall at the written  request of the
Company be delivered to the Company. The Company shall have the right to inspect
and make copies of all such letters,  notices or other written communications at
any  reasonable  time upon the giving of reasonable  prior written notice to the
Security Registrar.


                                                   ARTICLE FOUR

                                            SATISFACTION AND DISCHARGE

                  SECTION 401.  Satisfaction and Discharge of Indenture.

                  This  Indenture  shall  upon  Company  Request  cease to be of
further effect  (except as to surviving  rights of  registration  of transfer or
exchange of Securities expressly provided for herein or pursuant hereto) and the
Trustee,  at the  expense  of the  Company,  shall  execute  proper  instruments
acknowledging satisfaction and discharge of this Indenture when

                  (1)      either

                           (a)  all  Securities  theretofore  authenticated  and
                  delivered   (other  than  (i)   Securities   which  have  been
                  destroyed, lost or stolen and which have been replaced or paid
                  as  provided  in  Section  306 and (ii)  Securities  for whose
                  payment money has theretofore been deposited in trust with the
                  Trustee or any Paying Agent or segregated and held in trust by
                  the Company and thereafter repaid to the Company or discharged
                  from  such  trust as  provided  in  Section  1003)  have  been
                  delivered to the Trustee for cancellation; or

                        (b) all such Securities not theretofore delivered to the
                  Trustee for cancellation

                                    (i)     have become due and payable, or

                                (ii) will become due and payable at their Stated
                           Maturity within one year, or

                                    (iii) are to be called for redemption within
                           one  year  under  arrangements  satisfactory  to  the
                           Trustee for the giving of notice of redemption by the
                           Trustee  in the  name,  and at  the  expense,  of the
                           Company,

                  and the Company,  in the case of (i), (ii) or (iii) above, has
                  irrevocably  deposited  or  caused  to be  deposited  with the
                  Trustee  as trust  funds in trust for such  purpose  an amount
                  sufficient  to pay and discharge  the entire  indebtedness  on
                  such Securities not  theretofore  delivered to the Trustee for
                  cancellation, for principal (and premium, if any) and interest
                  to the date of such deposit (in the case of  Securities  which
                  have  become due and  payable)  or to the Stated  Maturity  or
                  Redemption Date, as the case may be;

                  (2)   the Company has paid or caused to be paid all other sums
         payable hereunder by the Company; and


                                                      4.1-33





                  (3) the Company  has  delivered  to the  Trustee an  Officers'
         Certificate and an Opinion of Counsel, each stating that all conditions
         precedent   herein  provided  for  relating  to  the  satisfaction  and
         discharge of this Indenture have been complied with.

                  Notwithstanding   the   satisfaction  and  discharge  of  this
Indenture,  the obligations of the Company to the Trustee under Section 607 and,
if money shall have been deposited with the Trustee pursuant to clause (1)(b) of
this Section 401, the  obligations of the Trustee under Section 402 and the last
paragraph of Section 1003 shall survive.

                  SECTION 402.  Application of Trust Money.

                  Subject to the  provisions  of the last  paragraph  of Section
1003, all money deposited with the Trustee pursuant to Section 401 shall be held
in trust and applied by it, in accordance  with the provisions of the Securities
and this Indenture,  to the payment, either directly or through any Paying Agent
(including  the  Company  acting as its own  Paying  Agent) as the  Trustee  may
determine,  to the Persons entitled thereto,  of the principal (and premium,  if
any) and  interest  for whose  payment  such money has been  deposited  with the
Trustee;  but such money need not be  segregated  from other funds except to the
extent required by law.


                                                   ARTICLE FIVE

                                                     REMEDIES

                  SECTION 501.  Events of Default.

                  "Event of Default", wherever used herein, means any one of the
following  events  (whatever the reason for such Event of Default and whether it
shall be voluntary or involuntary or be effected by operation of law or pursuant
to any judgment,  decree or order of any court or any order,  rule or regulation
of any administrative or governmental body):

                  (1) default in the payment of the principal or Accreted Value
         of (or premium, if any, on) any Security at its Maturity; or

                 (2) default in the payment of any interest on any Security when
        it becomes due and payable, and continuance of such default for a period
         of 30 days; or

                  (3) default in the payment of principal or Accreted  Value and
         interest on any Security required to be purchased  pursuant to an Offer
         to Purchase pursuant to Section 1010 or 1018; or

                  (4)   default in the performance, or breach, of Section 801 or
         1018; or

                  (5) default in the performance,  or breach, of any covenant or
         warranty of the Company in this  Indenture  or in any  Security  (other
         than a covenant  or  warranty a default in whose  performance  or whose
         breach is  elsewhere  in this Section  specifically  dealt  with),  and
         continuance  of such  default  or breach  for a period of 60 days after
         there has been given,  by registered or certified  mail, to the Company
         by the  Trustee or to the  Company and the Trustee by the Holders of at
         least 25% in aggregate  principal amount at maturity of the Outstanding
         Securities  a written  notice  specifying  such  default  or breach and
         requiring  it to be remedied  and stating that such notice is a "Notice
         of Default" hereunder; or

                                                      4.1-34





                  (6) a default or  defaults  under any  bond(s),  debenture(s),
         note(s) or other  evidence(s)  of  indebtedness  by the  Company or any
         Restricted  Subsidiary  or  under  any  mortgage(s),   indenture(s)  or
         instrument(s)  under which there may be issued or by which there may be
         secured or evidenced  any  indebtedness  of such type by the Company or
         any  such   Restricted   Subsidiary   with  a  principal   amount  then
         outstanding,  individually  or in  the  aggregate,  in  excess  of  $10
         million,  whether such  indebtedness  now exists or shall  hereafter be
         created,  which default or defaults shall result in the acceleration of
         the payment of such  indebtedness or shall  constitute a failure to pay
         the  principal  of such  indebtedness  when due at the  final  maturity
         thereof,   or  shall  have   resulted  in  excess  of  $10  million  of
         indebtedness  becoming or being  declared due and payable  prior to the
         date on which it would  otherwise  have become due and  payable  (after
         expiration of any applicable grace period); or

                  (7) a final  judgment  or final  judgments  for the payment of
         money are entered  against the Company or any Restricted  Subsidiary in
         an  aggregate  amount in excess of $10  million by a court or courts of
         competent jurisdiction, which judgment or judgments remain undischarged
         or  unbonded  for  a  period  (during  which  execution  shall  not  be
         effectively  stayed)  of 45 days  after the  right to  appeal  all such
         judgments has expired; or

                  (8)  the  entry  of  a  decree  or  order  by a  court  having
         jurisdiction  in the premises  adjudging the Company or any  Restricted
         Subsidiary a bankrupt or  insolvent,  or approving as properly  filed a
         petition seeking reorganization, arrangement, adjustment or composition
         of or in respect of the Company or any Restricted  Subsidiary under the
         Federal  Bankruptcy Code or any other applicable  federal or state law,
         or appointing a receiver, liquidator, assignee, trustee or sequestrator
         (or other similar official) of the Company or any Restricted Subsidiary
         or of any substantial part of its property,  or ordering the winding up
         or liquidation of its affairs,  and the  continuance of any such decree
         or order unstayed and in effect for a period of 60 consecutive days; or

                  (9)  the   institution   by  the  Company  or  any  Restricted
         Subsidiary of proceedings to be adjudicated a bankrupt or insolvent, or
         the  consent  by it to the  institution  of  bankruptcy  or  insolvency
         proceedings  against it, or the filing by it of a petition or answer or
         consent seeking  reorganization or relief under the Federal  Bankruptcy
         Code or any other applicable federal or state law, or the consent by it
         to the filing of any such petition or to the appointment of a receiver,
         liquidator,   assignee,  trustee  or  sequestrator  (or  other  similar
         official)  of  the  Company  or  any  Restricted  Subsidiary  or of any
         substantial part of its property,  or the making by it of an assignment
         for the benefit of creditors,  or the admission by it in writing of its
         inability to pay its debts generally as they become due.

               SECTION 502.  Acceleration of Maturity; Rescission and Annulment.

                  If an  Event  of  Default  (other  than an  Event  of  Default
specified in Section 501(8) or (9)) occurs and is continuing,  then and in every
such case the Trustee or the Holders of not less than 25% in principal amount at
maturity of the  Outstanding  Securities  may declare the  principal  of all the
Securities to be due and payable  immediately in an amount equal to the Accreted
Value of the Securities as of the date on which the Securities  first become due
and payable  (plus any accrued and unpaid  interest  and  premium,  if any,  not
otherwise  included in the Accreted Value to such date),  by a notice in writing
to the  Company  (and to the  Trustee  if given by  Holders),  and upon any such
declaration such principal shall become immediately due and payable.

                                                      4.1-35





If an  Event of  Default  specified  in  Section  501(8)  or (9)  occurs  and is
continuing, then the principal of all the Securities shall ipso facto become and
be immediately  due and payable without any declaration or other act on the part
of the  Trustee or any Holder in an amount  equal to the  Accreted  Value of the
Securities as of the date on which the  Securities  first become due and payable
(plus any  accrued  and unpaid  interest  and  premium,  if any,  not  otherwise
included in the Accreted Value to such date).

                  At any time after a declaration of acceleration  has been made
and before a judgment or decree for  payment of the money due has been  obtained
by the Trustee as  hereinafter  provided in this Article Five,  the Holders of a
majority  in  principal  amount at maturity of the  Outstanding  Securities,  by
written  notice to the  Company  and the  Trustee,  may  rescind  and annul such
declaration and its consequences if

                  (1)   the Company has paid or deposited with the Trustee a sum
         sufficient to pay

                         (A) all overdue interest on all Outstanding Securities,

                           (B) all unpaid principal at maturity of (and premium,
                  if any, on) any  Outstanding  Securities  which has become due
                  otherwise  than  by  such  declaration  of  acceleration,  and
                  interest  on such  unpaid  principal  at  maturity at the rate
                  borne by the Securities,

                      (C) to the extent that payment of such interest is lawful,
               interest on overdue interest at the rate borne by the Securities,
                  and

                      (D) all sums paid or advanced by the Trustee hereunder and
               the reasonable compensation, expenses, disbursements and advances
                  of the Trustee, its agents and counsel; and

                  (2) all  Events  of  Default,  other  than the  nonpayment  of
         amounts of  principal  or Accreted  Value of (or  premium,  if any, on)
         Securities  which  have  become  due  solely  by  such  declaration  of
         acceleration, have been cured or waived as provided in Section 513.

No such  rescission  shall  affect  any  subsequent  default or impair any right
consequent thereon.

                  Notwithstanding the preceding  paragraph,  in the event that a
declaration  of  acceleration  in respect of the  Securities  due to an Event of
Default specified in Section 501(6) shall have occurred and be continuing,  such
declaration of acceleration shall be automatically  annulled if the Debt that is
the subject of such Event of Default has been  discharged or the holders thereof
have rescinded  their  declaration of  acceleration in respect of such Debt, and
written notice of such  discharge or rescission,  as the case may be, shall have
been given to the  Trustee by the Company  and  countersigned  by the holders of
such Debt or a  trustee,  fiduciary  or agent for such  holders,  within 30 days
after such  declaration of  acceleration  in respect of the  Securities,  and no
other Event of Default has occurred during such 30-day period which has not been
cured or waived during such period.

              SECTION 503.  Collection of Indebtedness and Suits for Enforcement
by Trustee.

                  The Company covenants that if


                                                      4.1-36





                  (a)  default  is made in the  payment  of any  installment  of
         interest on any Security when such interest becomes due and payable and
         such default continues for a period of 30 days, or

                (b) default is made in the payment of the principal or Accreted
         Value of (or premium, if any, on) any Security at the Maturity thereof,

the Company will, upon demand of the Trustee, pay to the Trustee for the benefit
of the Holders of such  Securities the whole amount then due and payable on such
Securities for principal or Accreted  Value (and premium,  if any) and interest,
and interest on any overdue  principal or Accreted  Value (and premium,  if any)
and, to the extent that payment of such interest  shall be legally  enforceable,
upon any overdue  installment of interest,  at the rate borne by the Securities,
and, in addition  thereto,  such further  amount as shall be sufficient to cover
the costs and expenses of  collection,  including the  reasonable  compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel.

                  If the Company fails to pay such amounts  forthwith  upon such
demand,  the  Trustee,  in its own name as  trustee  of an  express  trust,  may
institute  a  judicial  proceeding  for the  collection  of the  sums so due and
unpaid,  may  prosecute  such  proceeding  to judgment  or final  decree and may
enforce the same against the Company or any other  obligor  upon the  Securities
and collect the moneys  adjudged or decreed to be payable in the manner provided
by law  out of the  property  of the  Company  or any  other  obligor  upon  the
Securities, wherever situated.

                  If an Event of Default occurs and is  continuing,  the Trustee
may in its  discretion  proceed to protect and enforce its rights and the rights
of the Holders by such  appropriate  judicial  proceedings  as the Trustee shall
deem most  effectual  to protect and enforce  any such  rights,  whether for the
specific enforcement of any covenant or agreement in this Indenture or in aid of
the exercise of any power granted herein, or to enforce any other proper remedy.

                  SECTION 504.  Trustee May File Proofs of Claim.

                  In  case  of the  pendency  of any  receivership,  insolvency,
liquidation, bankruptcy, reorganization, arrangement, adjustment, composition or
other judicial  proceeding relative to the Company or any other obligor upon the
Securities  or the  property  of the  Company or of such other  obligor or their
creditors,  the Trustee (irrespective of whether the principal of the Securities
shall then be due and payable as herein expressed or by declaration or otherwise
and  irrespective  of  whether  the  Trustee  shall  have made any demand on the
Company for the payment of overdue principal,  Accreted Value,  premium, if any,
or interest) shall be entitled and empowered, by intervention in such proceeding
or otherwise,

                  (i) to file  and  prove  a  claim  for  the  whole  amount  of
         principal at maturity  (and  premium,  if any) and  interest  owing and
         unpaid in respect of the  Securities  and to file such other  papers or
         documents  as may be necessary or advisable in order to have the claims
         of the Trustee  (including any claim for the  reasonable  compensation,
         expenses,  disbursements and advances of the Trustee and its agents and
         counsel) and of the Holders allowed in such judicial proceeding, and

                (ii) to collect and receive any moneys or other property payable
         or deliverable on any such claims and to distribute the same;

and any custodian,  receiver,  assignee, trustee, liquidator or sequestrator (or
other similar official) in any such judicial proceeding is hereby authorized

                                                      4.1-37





by each Holder to make such  payments to the Trustee  and, in the event that the
Trustee shall consent to the making of such payments directly to the Holders, to
pay the Trustee  any amount due it for the  reasonable  compensation,  expenses,
disbursements  and advances of the Trustee and its agents and  counsel,  and any
other amounts due the Trustee under Section 607.

                  Nothing  herein  contained  shall be deemed to  authorize  the
Trustee  to  authorize  or consent to or accept or adopt on behalf of any Holder
any plan of reorganization, arrangement, adjustment or composition affecting the
Securities or the rights of any Holder  thereof,  or to authorize the Trustee to
vote in respect of the claim of any Holder in any such proceeding.

                  SECTION 505.  Trustee May Enforce Claims Without Possession of
Securities.

                  All rights of action and claims  under this  Indenture  or the
Securities may be prosecuted and enforced by the Trustee  without the possession
of any of the  Securities or the production  thereof in any proceeding  relating
thereto,  and any such proceeding  instituted by the Trustee shall be brought in
its own name and as trustee of an express  trust,  and any  recovery of judgment
shall, after provision for the payment of the reasonable compensation, expenses,
disbursements and advances of the Trustee and its agents and counsel, be for the
ratable  benefit  of the  Holders  of the  Securities  in  respect of which such
judgment has been recovered.

                  SECTION 506.  Application of Money Collected.

                  Any money  collected  by the Trustee  pursuant to this Article
Five shall be applied in the following  order, at the date or dates fixed by the
Trustee and, in case of the  distribution  of such money on account of principal
or Accreted Value (or premium,  if any) or interest,  upon  presentation  of the
Securities  and the notation  thereon of the payment if only  partially paid and
upon surrender thereof if fully paid:

                  FIRST:  To the payment of all amounts due the Trustee under
         Section 607;

                  SECOND:  To the payment of the amounts then due and unpaid for
         principal or Accreted  Value of (and  premium,  if any) and interest on
         the  Securities  in respect  of which or for the  benefit of which such
         money has been collected,  ratably,  without  preference or priority of
         any kind,  according to the amounts due and payable on such  Securities
         for  principal or Accreted  Value (and  premium,  if any) and interest,
         respectively; and

                  THIRD:  The balance, if any, to the Person or Persons entitled
         thereto.

                  SECTION 507.  Limitation on Suits.

                  No Holder of any Securities  shall have any right to institute
any proceeding,  judicial or otherwise,  with respect to this Indenture,  or for
the  appointment  of a receiver or trustee,  or for any other remedy  hereunder,
unless

                  (1)     such Holder has previously given written notice to the
         Trustee of a continuing Event of Default;

                  (2)    the Holders of not less than 25% in aggregate principal
        amount at maturity of the Outstanding Securities shall have made written

                                                      4.1-38





        request to the Trustee to institute proceedings in respect of such Event
         of Default in its own name as Trustee hereunder;

                  (3)  such  Holder  or  Holders  have  offered  to the  Trustee
         indemnity reasonably satisfactory to it against the costs, expenses and
         liabilities to be incurred in compliance with such request;

                  (4)  the Trustee for 60 days after its receipt of such notice,
         request and offer of indemnity has failed to institute any such
         proceeding; and

                  (5) no direction  inconsistent  with such written  request has
         been given to the Trustee during such 60-day period by the Holders of a
         majority  or more in  aggregate  principal  amount at  maturity  of the
         Outstanding Securities;

it being  understood  and intended  that no one or more  Holders  shall have any
right in any manner whatsoever by virtue of, or by availing of, any provision of
this Indenture to affect,  disturb or prejudice the rights of any other Holders,
or to obtain or to seek to obtain  priority or preference over any other Holders
or to enforce  any right  under  this  Indenture,  except in the  manner  herein
provided and for the equal and ratable benefit of all the Holders.

              SECTION 508.  Unconditional Right of Holders to Receive Principal,
Premium and Interest.

                  Notwithstanding  any other  provision in this  Indenture,  the
Holder  of  any   Security   shall  have  the  right,   which  is  absolute  and
unconditional,  to receive payment as provided herein (including, if applicable,
Article Twelve) and in such Security of the principal and Accreted Value of (and
premium,  if any) and (subject to Section 307)  interest on such Security on the
respective  Stated  Maturities  expressed in such  Security  (or, in the case of
redemption, on the Redemption Date) and to institute suit for the enforcement of
any such payment,  and such rights shall not be impaired  without the consent of
such Holder.

                  SECTION 509.  Restoration of Rights and Remedies.

                  If the Trustee or any Holder has  instituted any proceeding to
enforce any right or remedy under this  Indenture and such  proceeding  has been
discontinued or abandoned for any reason,  or has been  determined  adversely to
the  Trustee or to such  Holder,  then and in every  such  case,  subject to any
determination in such proceeding, the Company, the Trustee and the Holders shall
be restored  severally and respectively to their former positions  hereunder and
thereafter all rights and remedies of the Trustee and the Holders shall continue
as though no such proceeding had been instituted.

                  SECTION 510.  Rights and Remedies Cumulative.

                  Except as otherwise  provided with respect to the  replacement
or  payment  of  mutilated,  destroyed,  lost or stolen  Securities  in the last
paragraph of Section 306, no right or remedy herein  conferred  upon or reserved
to the Trustee or to the Holders is intended to be  exclusive of any other right
or remedy,  and every right and remedy shall, to the extent permitted by law, be
cumulative  and in addition to every other right and remedy  given  hereunder or
now or hereafter  existing at law or in equity or  otherwise.  The  assertion or
employment of any right or remedy hereunder, or otherwise, shall not prevent the
concurrent assertion or employment of any other appropriate right or remedy.


                                                      4.1-39





                  SECTION 511.  Delay or Omission Not Waiver.

                  No delay or  omission  of the  Trustee or of any Holder of any
Security  to  exercise  any right or remedy  accruing  upon any Event of Default
shall  impair any such right or remedy or  constitute a waiver of any such Event
of Default or an  acquiescence  therein.  Every  right and remedy  given by this
Article  Five or by law to the Trustee or to the Holders may be  exercised  from
time to time, and as often as may be deemed expedient,  by the Trustee or by the
Holders, as the case may be.

                  SECTION 512.  Control by Holders.

                  The Holders of not less than a majority in aggregate principal
amount at maturity of the Outstanding  Securities shall have the right to direct
the time, method and place of conducting any proceeding for any remedy available
to the  Trustee,  or  exercising  any trust or power  conferred  on the Trustee,
provided that

                (1) such direction shall not be in conflict with any rule of law
         or with this Indenture,

                  (2) the Trustee may take any other action deemed proper by the
         Trustee which is not inconsistent with such direction, and

                  (3) the Trustee need not take any action  which might  involve
         it in personal liability or be unjustly  prejudicial to the Holders not
         consenting.

                  SECTION 513.  Waiver of Past Defaults.

                  The Holders of not less than a majority in aggregate principal
amount at maturity of the Outstanding Securities may on behalf of the Holders of
all the Securities waive any past default hereunder and its consequences, except
a default

                (1) in respect of the payment of the principal or Accreted Value
         of (or premium, if any) or interest on any Security, or

                  (2) in respect of a covenant or  provision  hereof which under
         Article  Nine cannot be modified or amended  without the consent of the
         Holder of each Outstanding Security affected.

                  Upon any such waiver,  such default shall cease to exist,  and
any Event of Default arising  therefrom shall be deemed to have been cured,  for
every  purpose  of  this  Indenture;  but no such  waiver  shall  extend  to any
subsequent or other  default or Event of Default or impair any right  consequent
thereon.

                  SECTION 514.  Waiver of Stay or Extension Laws.

                  The Company  covenants  (to the extent that it may lawfully do
so) that it shall  not at any time  insist  upon,  or  plead,  or in any  manner
whatsoever  claim or take the benefit or advantage of, any stay or extension law
wherever  enacted,  now or at any time hereafter in force,  which may affect the
covenants or the performance of this  Indenture;  and the Company (to the extent
that it may lawfully do so) hereby  expressly waives all benefit or advantage of
any such law and  covenants  that it  shall  not  hinder,  delay or  impede  the
execution  of any power  herein  granted to the  Trustee,  but shall  suffer and
permit the execution of every such power as though no such law had been enacted.


                                                      4.1-40





                                                    ARTICLE SIX

                                                    THE TRUSTEE

                  SECTION 601.  Certain Duties and Responsibilities.

                  (a)      Except during the continuance of an Event of Default,

                  (1) the  Trustee  undertakes  to perform  such duties and only
         such duties as are  specifically  set forth in this  Indenture,  and no
         implied  covenants  or  obligations  shall be read into this  Indenture
         against the Trustee; and

                  (2) in the  absence of bad faith on its part,  the Trustee may
         conclusively   rely,  as  to  the  truth  of  the  statements  and  the
         correctness of the opinions  expressed  therein,  upon  certificates or
         opinions furnished to the Trustee and conforming to the requirements of
         this Indenture;  but, in the case of any such  certificates or opinions
         which by any provision hereof are specifically required to be furnished
         to the Trustee,  the Trustee  shall be under a duty to examine the same
         to determine  whether or not they conform to the  requirements  of this
         Indenture.

                  (b)  In  case  an  Event  of  Default  has   occurred  and  is
continuing,  the Trustee shall  exercise such of the rights and powers vested in
it by this  Indenture,  and use the  same  degree  of care  and  skill  in their
exercise,  as a prudent man would exercise or use under the circumstances in the
conduct of his own affairs.

                  (c) No  provision  of this  Indenture  shall be  construed  to
relieve  the  Trustee  from  liability  for its own  negligent  action,  its own
negligent failure to act or its own willful misconduct, except that

                  (1)     this paragraph (c) shall not be construed to limit the
         effect of paragraph (a) of this Section 601;

                  (2) the Trustee  shall not be liable for any error of judgment
         made in good faith by a Responsible Officer,  unless it shall be proved
         that the Trustee was negligent in ascertaining the pertinent facts;

                  (3) the Trustee shall not be liable with respect to any action
         taken or omitted to be taken by it in good faith in accordance with the
         direction of the Holders of a majority in principal  amount at maturity
         of the Outstanding Securities relating to the time, method and place of
         conducting any proceeding for any remedy  available to the Trustee,  or
         exercising any trust or power  conferred  upon the Trustee,  under this
         Indenture; and

                  (4) no provision of this  Indenture  shall require the Trustee
         to  expend  or risk its own  funds or  otherwise  incur  any  financial
         liability in the performance of any of its duties hereunder,  or in the
         exercise  of any of its rights or powers,  if it shall have  reasonable
         grounds  for  believing  that  repayment  of such  funds  or  indemnity
         reasonably  satisfactory  to it against  such risk or  liability is not
         reasonably assured to it.

                  (d)  Whether  or not  therein  expressly  so  provided,  every
provision of this  Indenture  relating to the conduct or affecting the liability
of or affording  protection to the Trustee shall be subject to the provisions of
this Section 601.


                                                      4.1-41





                  SECTION 602.  Notice of Default.

                  Within 60 days after the occurrence of any Default  hereunder,
the  Trustee  shall  transmit,  in the manner and to the extent  provided in TIA
Section  313(c),  notice  of such  Default  hereunder  known to any  Responsible
Officer of the  Trustee,  unless such  Default  shall have been cured or waived;
provided,  however,  that, except in the case of a Default in the payment of the
principal or Accreted Value of (or premium, if any) or interest on any Security,
the Trustee shall be protected in withholding  such notice if and so long as the
board of directors,  the executive  committee or a trust  committee of directors
and/or  Responsible  Officers of the Trustee in good faith  determines  that the
withholding  of such notice is in the  interest  of the  Holders;  and  provided
further  that in the case of any Default of the  character  specified in Section
501(5) no such notice to Holders shall be given until at least 30 days after the
occurrence thereof.

                  SECTION 603.  Certain Rights of Trustee.

                  Subject to Section 601 and to the  provisions  of TIA Sections
315(a) through 315(d):

                  (1) the  Trustee  may  conclusively  rely  and  shall be fully
         protected  in acting or  refraining  from acting  upon any  resolution,
         certificate,  statement,  instrument, opinion, report, notice, request,
         direction,  consent,  order, bond,  debenture,  note, other evidence of
         indebtedness  or other paper or  document  believed by it to be genuine
         and to have been signed or presented by the proper party or parties;

                  (2) any request or direction of the Company  mentioned  herein
         shall be  sufficiently  evidenced by a Company Request or Company Order
         and any  resolution  of the  Board  of  Directors  may be  sufficiently
         evidenced by a Board Resolution;

                  (3)  whenever  in the  administration  of this  Indenture  the
         Trustee shall deem it desirable  that a matter be proved or established
         prior to  taking,  suffering  or  omitting  any action  hereunder,  the
         Trustee (unless other evidence be herein specifically  prescribed) may,
         in the  absence  of bad  faith on its  part,  receive  and rely upon an
         Officers' Certificate;

                  (4) the  Trustee  may  consult  with  counsel  and the written
         advice of such  counsel or any  Opinion  of  Counsel  shall be full and
         complete  authorization  and protection in respect of any action taken,
         suffered  or omitted  by it  hereunder  in good  faith and in  reliance
         thereon;

                  (5) the Trustee  shall be under no  obligation to exercise any
         of the rights or powers  vested in it by this  Indenture at the request
         or direction of any of the Holders  pursuant to this Indenture,  unless
         such Holders  shall have  offered to the Trustee  security or indemnity
         reasonably   satisfactory  to  it  against  the  costs,   expenses  and
         liabilities  which  might be  incurred  by it in  compliance  with such
         request or direction;

                  (6) the Trustee  shall not be bound to make any  investigation
         into the  facts  or  matters  stated  in any  resolution,  certificate,
         statement,  instrument,  opinion,  report, notice, request,  direction,
         consent,  order, bond, debenture,  note, other evidence of indebtedness
         or other paper or document,  but the Trustee,  in its  discretion,  may
         make such further inquiry or  investigation  into such facts or matters
         as it may see fit,  and, if the Trustee  shall  determine  to make such
         further inquiry or  investigation,  it shall be entitled to examine the
         books,  records and premises of the Company,  personally or by agent or
         attorney;

                                                      4.1-42





                  (7) the  Trustee  may  execute  any of the  trusts  or  powers
         hereunder  or perform  any duties  hereunder  either  directly or by or
         through  agents or attorneys and the Trustee  shall not be  responsible
         for any  misconduct  or negligence on the part of any agent or attorney
         appointed with due care by it hereunder;

                  (8) the  Trustee  shall not be liable  for any  action  taken,
         suffered  or  omitted  by it in good  faith  and  believed  by it to be
         authorized or within the discretion or rights or powers  conferred upon
         it by this Indenture; and

                  (9) the Trustee shall have no duties, obligations or liability
         in connection with any Event of Default  hereunder unless a Responsible
         Officer of the Trustee has knowledge thereof.

                  The  Trustee  shall not be  required to expend or risk its own
funds or otherwise  incur any financial  liability in the  performance of any of
its duties  hereunder,  or in the exercise of any of its rights or powers, if it
shall have  reasonable  grounds for  believing  that  repayment of such funds or
adequate  indemnity against such risk or liability is not reasonably  assured to
it.

               SECTION 604.  Trustee Not Responsible for Recitals or Issuance of
Securities.

                  The recitals  contained  herein and in the Securities,  except
for  the  Trustee's  certificates  of  authentication,  shall  be  taken  as the
statements of the Company,  and the Trustee assumes no responsibility  for their
correctness.  The  Trustee  makes  no  representations  as to  the  validity  or
sufficiency  of this  Indenture  or of the  Securities,  except that the Trustee
represents  that it is duly  authorized  to execute and deliver this  Indenture,
authenticate the Securities and perform its obligations  hereunder.  The Trustee
shall not be accountable for the use or application by the Company of Securities
or the proceeds thereof.

                  SECTION 605.  May Hold Securities.

                  The Trustee,  any Paying Agent, any Security  Registrar or any
other agent of the Company or of the  Trustee,  in its  individual  or any other
capacity,  may become the owner or pledgee  of  Securities  and,  subject to TIA
Sections  310(b) and 311,  may  otherwise  deal with the  Company  with the same
rights it would have if it were not Trustee, Paying Agent, Security Registrar or
such other agent.

                  SECTION 606.  Money Held in Trust.

                  Money  held by the  Trustee  in  trust  hereunder  need not be
segregated  from other funds  except to the extent  required by law. The Trustee
shall be under no liability  for interest on any money  received by it hereunder
except as otherwise agreed with the Company.

                  SECTION 607.  Compensation and Reimbursement.

                  The Company agrees:

                  (1) to pay  to  the  Trustee  from  time  to  time  reasonable
         compensation   for  all  services   rendered  by  it  hereunder  (which
         compensation  shall not be limited by any provision of law in regard to
         the compensation of a trustee of an express trust);


                                                      4.1-43





                  (2)  except  as  otherwise   expressly   provided  herein,  to
         reimburse  the Trustee  upon its request for all  reasonable  expenses,
         disbursements   and  advances  incurred  or  made  by  the  Trustee  in
         accordance  with  any  provision  of  this  Indenture   (including  the
         reasonable  compensation  and the  expenses  and  disbursements  of its
         agents and counsel),  except any such expense,  disbursement or advance
         as may be attributable to the Trustee's negligence or bad faith; and

                  (3) to  indemnify  the  Trustee and its  directors,  officers,
         employees and agents for, and to hold them harmless against,  any loss,
         liability or expense  incurred  without  negligence or bad faith on the
         part  of  any  of  them,  arising  out  of or in  connection  with  the
         acceptance  or  administration  of this trust,  including the costs and
         expenses  of  defending  itself  or  themselves  against  any  claim or
         liability in connection  with the exercise or performance of any of its
         or their powers or duties hereunder.

                  The  obligations  of the  Company  under this  Section  607 to
compensate  the  Trustee,   to  pay  or  reimburse  the  Trustee  for  expenses,
disbursements  and advances and to indemnify and hold harmless the Trustee shall
constitute additional  indebtedness hereunder and shall survive the satisfaction
and  discharge of this  Indenture or the earlier  resignation  or removal of the
Trustee. As security for the performance of such obligations of the Company, the
Trustee shall have a claim prior to the  Securities  upon all property and funds
held or  collected  by the Trustee as such,  except  funds held in trust for the
payment of principal or Accreted  Value of (and premium,  if any) or interest on
particular Securities.

                  When the  Trustee  incurs  expenses  or  renders  services  in
connection  with an Event of Default  specified  in Section  501(8) or (9),  the
expenses  (including the reasonable  charges and expenses of its counsel) of and
the  compensation  for such  services  are  intended to  constitute  expenses of
administration  under any applicable federal or state bankruptcy,  insolvency or
other similar law.

                  The   provisions   of  this  Section  607  shall  survive  the
termination  of this  Indenture  or the  earlier  resignation  or removal of the
Trustee.

              SECTION 608.  Corporate Trustee Required; Eligibility; Conflicting
Interests.

                  (a)  There  shall be at all times a  Trustee  hereunder  which
shall be subject to and comply with the  provisions of Section  310(a)(1) of the
Trust  Indenture  Act and shall have a combined  capital and surplus of at least
$50,000,000.  If such  Corporation  publishes  reports  of  condition  at  least
annually,  pursuant to law or to the requirements of federal, state, territorial
or  District of Columbia  supervising  or  examining  authority,  then,  for the
purposes  of  this  Section  608,  the  combined  capital  and  surplus  of such
Corporation  shall be deemed to be its combined capital and surplus as set forth
in its most recent report of condition so published.  If at any time the Trustee
shall cease to be eligible in  accordance  with the  provisions  of this Section
608, it shall resign  immediately in the manner and with the effect  hereinafter
specified in this Article Six.

                  (b)    The Trustee shall be subject to and comply with Section
310(b) of the Trust Indenture Act.


                                                      4.1-44





                SECTION 609.  Resignation and Removal; Appointment of Successor.

                  (a)  No   resignation   or  removal  of  the  Trustee  and  no
appointment  of a  successor  Trustee  pursuant  to this  Article  shall  become
effective  until the  acceptance  of  appointment  by the  successor  Trustee in
accordance with the applicable requirements of Section 610.

                  (b) The  Trustee  may  resign  at any time by  giving  written
notice  thereof to the Company.  If the  instrument of acceptance by a successor
Trustee  required  by Section 610 shall not have been  delivered  to the Trustee
within 30 days after the giving of such  notice of  resignation,  the  resigning
Trustee may petition any court of competent  jurisdiction for the appointment of
a successor Trustee.

                  (c)  The  Trustee  may be  removed  at any  time by Act of the
Holders of not less than a majority in aggregate principal amount at maturity of
the Outstanding Securities, delivered to the Trustee and to the Company.

                  (d)      If at any time:

                  (1) the Trustee  shall fail to comply with the  provisions  of
         TIA Section 310(b) after written request  therefor by the Company or by
         any Holder who has been a bona fide  Holder of a Security  for at least
         six months, or

                  (2) the  Trustee  shall  cease to be  eligible  under  Section
         608(a) and shall fail to resign after written  request  therefor by the
         Company or by any Holder who has been a bona fide  Holder of a Security
         for at least six months, or

                  (3) the Trustee  shall become  incapable of acting or shall be
         adjudged a bankrupt or insolvent or a receiver of the Trustee or of its
         property  shall be appointed or any public officer shall take charge or
         control of the Trustee or of its property or affairs for the purpose of
         rehabilitation, conservation or liquidation,

then, in any such case, (i) the Company,  by a Board Resolution,  may remove the
Trustee or (ii)  subject to TIA Section  315(e),  any Holder who has been a bona
fide Holder of a Security  for at least six months may, on behalf of himself and
all others similarly situated,  petition any court of competent jurisdiction for
the removal of the Trustee and the appointment of a successor Trustee.

                  (e)  If  the  Trustee  shall  resign,  be  removed  or  become
incapable  of acting,  or if a vacancy  shall occur in the office of Trustee for
any  cause,  the  Company,  by a Board  Resolution,  shall  promptly  appoint  a
successor  Trustee.  If,  within  one year after  such  resignation,  removal or
incapability,  or the occurrence of such vacancy,  a successor  Trustee shall be
appointed by Act of the Holders of a majority in aggregate  principal  amount at
maturity of the Outstanding Securities delivered to the Company and the retiring
Trustee, the successor Trustee so appointed shall, forthwith upon its acceptance
of such  appointment,  become the successor  Trustee and supersede the successor
Trustee  appointed by the Company.  If no successor  Trustee  shall have been so
appointed by the Company or the Holders and accepted  appointment  in the manner
hereinafter  provided,  any Holder who has been a bona fide Holder of a Security
for at least six  months  may,  on behalf of himself  and all  others  similarly
situated,  petition any court of competent jurisdiction for the appointment of a
successor Trustee.

                  (f) The Company shall give notice of each resignation and each
removal of the Trustee and each appointment of a successor Trustee to the

                                                      4.1-45





Holders of  Securities  in the manner  provided for in Section 106.  Each notice
shall include the name of the successor Trustee and the address of its Corporate
Trust Office.

                (g) The retiring Trustee shall not be liable for any of the acts
or omissions of any successor Trustee appointed hereunder.

                  SECTION 610.  Acceptance of Appointment by Successor.

                  Every  successor  Trustee  appointed  hereunder shall execute,
acknowledge and deliver to the Company and to the retiring Trustee an instrument
accepting  such  appointment,  and thereupon the  resignation  or removal of the
retiring Trustee shall become effective and such successor Trustee,  without any
further  act,  deed or  conveyance,  shall  become  vested  with all the rights,
powers,  trusts  and  duties of the  retiring  Trustee;  but,  on request of the
Company or the successor  Trustee,  such retiring Trustee shall, upon payment of
its charges,  execute and deliver an instrument  transferring  to such successor
Trustee all the rights, powers and trusts of the retiring Trustee and shall duly
assign,  transfer and deliver to such  successor  Trustee all property and money
held by such  retiring  Trustee  hereunder.  Upon request of any such  successor
Trustee,  the Company shall execute any and all  instruments  for more fully and
certainly  vesting in and confirming to such successor  Trustee all such rights,
powers and trusts.

                  No successor  Trustee shall accept its  appointment  unless at
the time of such  acceptance  such  successor  Trustee  shall be  qualified  and
eligible under this Article.

                SECTION 611.  Merger, Conversion, Consolidation or Succession to
Business.

                  Any  Corporation  into  which  the  Trustee  may be  merged or
converted or with which it may be  consolidated,  or any  Corporation  resulting
from any merger,  conversion  or  consolidation  to which the Trustee shall be a
party,  or  any  Corporation  succeeding  to  all  or  substantially  all of the
corporate  trust business of the Trustee,  shall be the successor of the Trustee
hereunder,  provided  that such  Corporation  shall be otherwise  qualified  and
eligible under this Article Six, without the execution or filing of any paper or
any further act on the part of any of the parties hereto. In case any Securities
shall have been authenticated, but not delivered, by the Trustee then in office,
any successor by merger,  conversion  or  consolidation  to such  authenticating
Trustee  may  adopt  such   authentication   and  deliver  the   Securities   so
authenticated  with the same  effect as if such  successor  Trustee  had  itself
authenticated such Securities.  In case at that time any of the Securities shall
not have  been  authenticated,  any  successor  Trustee  may  authenticate  such
Securities either in the name of any predecessor hereunder or in the name of the
successor Trustee. In all such cases such certificates shall have the full force
and effect which this Indenture  provides that the certificate of authentication
of the  Trustee  shall  have;  provided,  however,  that the  right to adopt the
certificate of  authentication  of any  predecessor  Trustee or to  authenticate
Securities  in the  name of any  predecessor  Trustee  shall  apply  only to its
successor or successors by merger, conversion or consolidation.



                                                      4.1-46





                                                   ARTICLE SEVEN

                               HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY

                  SECTION 701.  Disclosure of Names and Addresses of Holders.

                  Every Holder of Securities, by receiving and holding the same,
agrees with the Company and the Trustee  that none of the Company or the Trustee
or any  agent of  either  of them  shall be held  accountable  by  reason of the
disclosure of any such  information as to the names and addresses of the Holders
in  accordance  with TIA Section 312,  regardless  of the source from which such
information was derived,  and that the Trustee shall not be held  accountable by
reason of mailing  any  material  pursuant  to a request  made under TIA Section
312(b).

                  SECTION 702.  Reports by Trustee.

                  Within 60 days after May 15 of each year  commencing  with the
first May 15 after the first issuance of Securities,  the Trustee shall transmit
to the Holders,  in the manner and to the extent provided in TIA Section 313(c),
a brief report dated as of such May 15 if required by TIA Section 313(a).

                  SECTION 703.  Reports by Company.

                  The  Company  shall file with the  Trustee  and deliver to the
Holders of Securities the reports and other information  required to be provided
by it pursuant to Section 1008.


                                                   ARTICLE EIGHT

                            CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

                  SECTION 801.  Company May Consolidate, Etc., Only on Certain
Terms.

                  The Company shall not, in a single  transaction or a series of
related  transactions,  (i)  consolidate  with or merge into any other Person or
Persons or permit any other Person to consolidate with or merge into the Company
(other than a merger of Qwest  Corporation into the Company in which the Company
shall be the surviving Person) or (ii) directly or indirectly,  transfer,  sell,
lease or  otherwise  dispose  of all or  substantially  all of its assets to any
other Person or Persons, unless, in any such transaction specified in clause (i)
or (ii):

                  (1) in a transaction in which the Company is not the surviving
         Person or in which the Company sells,  leases or otherwise  disposes of
         all or  substantially  all of its  assets  to  any  other  Person,  the
         resulting,  surviving or transferee Person (the "successor  entity") is
         organized  under the laws of the United  States of America or any State
         thereof or the District of Columbia and shall  expressly  assume,  by a
         supplemental  indenture  executed and  delivered to the Trustee in form
         satisfactory  to the Trustee,  all of the Company's  obligations  under
         this Indenture;

                  (2)  immediately  before  and  after  giving  effect  to  such
         transaction  and treating any Debt which  becomes an  obligation of the
         Company or a Restricted  Subsidiary as a result of such  transaction as
         having been  Incurred by the Company or such  Restricted  Subsidiary at
         the time of the transaction,  no Default or Event of Default shall have
         occurred and be continuing;

                                                      4.1-47





                  (3) immediately after giving effect to such  transaction,  the
         Consolidated Net Worth of the Company (or other successor entity to the
         Company) is equal to or greater  than that of the  Company  immediately
         prior to the transaction;

                  (4)  immediately  after giving effect to such  transaction and
         treating  any Debt which  becomes  an  obligation  of the  Company or a
         Restricted  Subsidiary as a result of such  transaction  as having been
         Incurred by the Company or such  Restricted  Subsidiary  at the time of
         the  transaction,  the Company  (including any successor  entity to the
         Company) could Incur at least $1.00 of additional  Debt pursuant to the
         provisions of paragraph (a) of Section 1011;

                  (5) if,  as a result  of any  such  transaction,  property  or
         assets of the Company would become subject to a Lien  prohibited by the
         provisions of Section 1015, the Company or the successor  entity to the
         Company  shall have secured the  Securities as required by such Section
         1015; and

                  (6) the Company  has  delivered  to the  Trustee an  Officers'
         Certificate  and an  Opinion  of  Counsel,  each in form and  substance
         reasonably   satisfactory   to   the   Trustee,   stating   that   such
         consolidation,  merger, conveyance, transfer, lease or acquisition and,
         if a  supplemental  indenture  is  required  in  connection  with  such
         transaction,  such supplemental  indenture,  complies with this Article
         and that all conditions  precedent herein provided for relating to such
         transaction  have  been  complied  with,  and,  with  respect  to  such
         Officers' Certificate, setting forth the manner of determination of the
         Consolidated  Net Worth,  in accordance with clause (3) of this Section
         801, of the  Company  or, if  applicable,  of the  successor  entity as
         required pursuant to the foregoing.

                  SECTION 802.  Successor Substituted.

                  Upon any  consolidation  of the Company  with or merger of the
Company with or into any other Corporation or any conveyance,  transfer or lease
of the properties and assets of the Company  substantially as an entirety to any
Person or Persons in accordance with Section 801, the successor Person formed by
such  consolidation  or into  which  the  Company  is  merged  or to which  such
conveyance,  transfer or lease is made shall succeed to, and be substituted for,
and may exercise every right and power of, the Company under this Indenture with
the same  effect  as if such  successor  Person  had been  named as the  Company
herein, and, in the event of any such conveyance or transfer, the Company (which
term shall for this purpose mean the Person named as the  "Company" in the first
paragraph of this Indenture or any successor Person which shall have become such
in the manner described in Section 801), except in the case of a lease, shall be
discharged  of all  obligations  and  covenants  under  this  Indenture  and the
Securities and may be dissolved and liquidated.


                                                   ARTICLE NINE

                                              SUPPLEMENTAL INDENTURES

               SECTION 901.  Supplemental Indentures Without Consent of Holders.

                  Without  the  consent  of  any  Holders,  the  Company,   when
authorized by a Board Resolution,  and the Trustee, at any time and from time to
time, may enter into one or more  indentures  supplemental  hereto,  in form and
substance satisfactory to the Trustee, for any of the following purposes:


                                                      4.1-48





                 (1) to evidence the succession of another Person to the Company
        and the assumption by any such successor of the covenants of the Company
         contained herein and in the Securities; or

                  (2)  to add to the covenants of the Company for the benefit of
        the Holders or to surrender any right or power herein conferred upon the
         Company; or

                  (3)      to add any additional Events of Default; or

                  (4)  to evidence and provide for the acceptance of appointment
         hereunder by a successor Trustee pursuant to the requirements of
         Section 610; or

                  (5) to cure  any  ambiguity,  to  correct  or  supplement  any
         provision  herein which may be  inconsistent  with any other  provision
         herein,  or to make any other  provisions  with  respect  to matters or
         questions arising under this Indenture; provided that such action shall
         not  adversely  affect the  interests  of the  Holders in any  material
         respect; or

                  (6)   to secure the Securities pursuant to the requirements of
         Section 1016.

                  SECTION 902.  Supplemental Indentures with Consent of Holders.

                  With the consent of the Holders of not less than a majority in
aggregate principal amount at maturity of the Outstanding Securities,  by Act of
said  Holders  delivered  to the  Company and the  Trustee,  the  Company,  when
authorized by a Board Resolution, and the Trustee may enter into an indenture or
indentures  supplemental  hereto for the purpose of adding any  provisions to or
changing in any manner or eliminating any of the provisions of this Indenture or
of  modifying  in any  manner the rights of the  Holders  under this  Indenture;
provided,  however,  that no such  supplemental  indenture  shall,  without  the
consent of the Holder of each Outstanding Security affected thereby:

                  (1) change the Stated  Maturity of the  principal  or Accreted
         Value of or any installment of interest on any Security,  or reduce the
         principal amount or Accreted Value thereof (or premium,  if any) or the
         rate of  interest  thereon  or reduce the  amount of the  principal  at
         maturity  of the  Securities  that  would  be due  and  payable  upon a
         declaration of acceleration of the Maturity thereof pursuant to Section
         502 or the amount  thereof  provable in bankruptcy  pursuant to Section
         504,  or  change  the coin or  currency  in which any  Security  or any
         premium  or the  interest  thereon is  payable,  or impair the right to
         institute suit for the enforcement of any such payment after the Stated
         Maturity  thereof  (or,  in the case of  redemption,  on or  after  the
         Redemption Date); or

                  (2) reduce the  percentage  in aggregate  principal  amount at
         maturity of the Outstanding  Securities the consent of whose Holders is
         required for any such supplemental  indenture,  or the consent of whose
         Holders  is  required  for  any  waiver  of  compliance   with  certain
         provisions of this  Indenture or certain  defaults  hereunder and their
         consequences provided for in this Indenture; or

                  (3)  modify  any of the  provisions  of  this  Section  902 or
         Sections  513 and 1023,  except to increase any such  percentage  or to
         provide that certain other provisions of this Indenture cannot be

                                                      4.1-49





         modified  or  waived   without  the  consent  of  the  Holder  of  each
         Outstanding Security affected thereby.

                  It shall not be  necessary  for any Act of Holders  under this
Section  902  to  approve  the  particular  form  of any  proposed  supplemental
indenture,  but it shall be  sufficient  if such Act shall approve the substance
thereof.

                  SECTION 903.  Execution of Supplemental Indentures.

                  In executing,  or accepting the additional  trusts created by,
any supplemental  indenture  permitted by this Article Nine or the modifications
thereby of the trusts created by this  Indenture,  the Trustee shall be entitled
to receive,  and shall be fully protected in relying upon, an Opinion of Counsel
stating that the  execution of such  supplemental  indenture  is  authorized  or
permitted  by this  Indenture  and an  Officers'  Certificate  stating  that all
conditions  precedent to the execution of such supplemental  indenture have been
fulfilled.  The Trustee may, but shall not be obligated  to, enter into any such
supplemental  indenture  which  affects  the  Trustee's  own  rights,  duties or
immunities under this Indenture or otherwise.

                  SECTION 904.  Effect of Supplemental Indentures.

                  Upon the execution of any  supplemental  indenture  under this
Article Nine, this Indenture shall be modified in accordance therewith, and such
supplemental indenture shall form a part of this Indenture for all purposes; and
every Holder of Securities theretofore or thereafter authenticated and delivered
hereunder shall be bound thereby.

                  SECTION 905.  Conformity with Trust Indenture Act.

                  Every supplemental indenture executed pursuant to this Article
Nine shall  conform as a matter of  contract or law to the  requirements  of the
Trust Indenture Act as then in effect.

               SECTION 906.  Reference in Securities to Supplemental Indentures.

                  Securities  authenticated and delivered after the execution of
any supplemental  indenture pursuant to this Article Nine may bear a notation in
form  approved by the Trustee and the Company as to any matter  provided  for in
such supplemental indenture.  If the Company shall so determine,  new Securities
so modified as to conform, in the opinion of the Trustee and the Company, to any
such  supplemental  indenture  may be prepared  and  executed by the Company and
authenticated   and  delivered  by  the  Trustee  in  exchange  for  Outstanding
Securities.

                  SECTION 907.  Notice of Supplemental Indentures.

                  Promptly after the execution by the Company and the Trustee of
any  supplemental  indenture  pursuant to the  provisions  of Section  902,  the
Company shall give notice  thereof to the Holders of each  Outstanding  Security
affected,  in the manner  provided for in Section 106,  setting forth in general
terms the substance of such supplemental indenture.



                                                      4.1-50





                                                    ARTICLE TEN

                                                     COVENANTS

                  SECTION 1001.  Payment of Principal, Premium, if Any, and
Interest.

                  The  Company  covenants  and  agrees  for the  benefit  of the
Holders that it shall duly and punctually pay the principal or Accreted Value of
(and premium,  if any) and interest on the  Securities  in  accordance  with the
terms of the Securities and this Indenture.

                  SECTION 1002.  Maintenance of Office or Agency.

                  The Company  shall  maintain in The City of New York an office
or agency where  Securities may be presented or surrendered  for payment,  where
Securities may be surrendered for registration of transfer or exchange and where
notices and demands to or upon the Company in respect of the Securities and this
Indenture may be served. The Corporate Trust Office of the Trustee shall be such
office or agency of the Company, unless the Company shall designate and maintain
some other office or agency for one or more of such purposes.  The Company shall
give prompt  written  notice to the Trustee of any change in the location of any
such  office or agency.  If at any time the Company  shall fail to maintain  any
such  required  office or agency or shall fail to furnish the  Trustee  with the
address thereof, such presentations, surrenders, notices and demands may be made
or served at the Corporate  Trust Office of the Trustee,  and the Company hereby
appoints the Trustee as its agent to receive all such presentations, surrenders,
notices and demands.

                  The Company may also from time to time  designate  one or more
other  offices or  agencies  (in or  outside of The City of New York)  where the
Securities may be presented or surrendered  for any or all such purposes and may
from time to time rescind any such designation;  provided, however, that no such
designation  or  rescission  shall in any  manner  relieve  the  Company  of its
obligation  to  maintain  an  office  or agency in The City of New York for such
purposes.  The Company  shall give prompt  written  notice to the Trustee of any
such  designation or rescission and any change in the location of any such other
office or agency.

                 SECTION 1003.  Money for Security Payments to Be Held in Trust.

                  If the Company  shall at any time act as its own Paying Agent,
it shall,  on or before each due date of the principal or Accreted  Value of (or
premium,  if any) or interest on any of the  Securities,  segregate  and hold in
trust for the benefit of the Persons  entitled  thereto a sum  sufficient to pay
the principal or Accreted Value of (or premium,  if any) or interest so becoming
due until such sums shall be paid to such  Persons or  otherwise  disposed of as
herein  provided and shall promptly  notify the Trustee of its action or failure
so to act.

                  Whenever the Company  shall have one or more Paying Agents for
the  Securities,  it  shall,  on or  before  each due date of the  principal  or
Accreted Value of (or premium,  if any) or interest on any  Securities,  deposit
with a Paying Agent a sum sufficient to pay the principal or Accreted Value (and
premium,  if any) or interest so becoming  due, such sum to be held in trust for
the benefit of the Persons entitled to such principal or Accreted Value, premium
or  interest,  and (unless  such Paying  Agent is the  Trustee) the Company will
promptly notify the Trustee of such action or any failure so to act.

                  The  Company  shall cause each  Paying  Agent  (other than the
Trustee)  to execute  and  deliver to the  Trustee an  instrument  in which such
Paying Agent

                                                      4.1-51





shall agree with the Trustee,  subject to the  provisions  of this Section 1003,
that such Paying Agent shall:

                  (1) hold all sums held by it for the payment of the  principal
         or Accreted  Value of,  premium,  if any, or interest on  Securities in
         trust for the benefit of the Persons  entitled  thereto until such sums
         shall  be paid to such  Persons  or  otherwise  disposed  of as  herein
         provided;

                  (2) give the Trustee  notice of any default by the Company (or
         any other obligor upon the  Securities) in the making of any payment of
         principal or Accreted Value, premium, if any, or interest;

                  (3) at any time during the  continuance  of any such  default,
         upon the written  request of the Trustee,  forthwith pay to the Trustee
         all sums so held in trust by such Paying Agent; and

                  (4)  indemnify  the  Trustee  and  its  officers,   directors,
         employees and agents against any loss, cost or liability  caused by, or
         incurred as a result of, such Paying Agent's acts or omissions.

                  The Company may at any time,  for the purpose of obtaining the
satisfaction  and discharge of this Indenture or for any other purpose,  pay, or
by Company Order direct any Paying Agent to pay, to the Trustee all sums held in
trust by the Company or such Paying  Agent,  such sums to be held by the Trustee
upon the same  trusts as those upon which such sums were held by the  Company or
such Paying  Agent;  and,  upon such payment by any Paying Agent to the Trustee,
such Paying Agent shall be released from all further  liability  with respect to
such sums.

                  Any money  deposited with the Trustee or any Paying Agent,  or
then held by the Company,  in trust for the payment of the principal or Accreted
Value of, premium,  if any, or interest on any Security and remaining  unclaimed
for two years after such  principal,  Accreted  Value,  premium or interest  has
become due and payable shall be paid to the Company on Company  Request,  or (if
then held by the Company) shall be discharged from such trust; and the Holder of
such Security shall thereafter,  as an unsecured general creditor,  look only to
the Company for payment thereof, and all liability of the Trustee or such Paying
Agent with  respect to such trust  money,  and all  liability  of the Company as
trustee thereof, shall thereupon cease;  provided,  however, that the Trustee or
such Paying Agent, before being required to make any such repayment,  may at the
expense of the Company cause to be published  once, in a newspaper  published in
the English language,  customarily published on each Business Day and of general
circulation in the Borough of Manhattan,  The City of New York, notice that such
money remains  unclaimed and that, after a date specified  therein,  which shall
not be less  than 30 days  from  the  date of such  publication,  any  unclaimed
balance of such money then remaining will be repaid to the Company.

                  SECTION 1004.  Corporate Existence.

                  Subject to Article Eight,  the Company shall do or cause to be
done all  things  necessary  to  preserve  and keep in full force and effect the
corporate  existence,  rights  (charter and  statutory)  and  franchises  of the
Company and each Subsidiary;  provided,  however,  that the Company shall not be
required to preserve,  with respect to the Company,  any such right or franchise
or, with respect to any Subsidiary  (subject to all the other  covenants in this
Indenture),  any such corporate existence,  right or franchise,  if the Board of
Directors shall determine that the  preservation  thereof is no longer desirable
in the conduct of the  business of the Company and its  Subsidiaries  as a whole
and that the loss thereof is not  disadvantageous in any material respect to the
Holders.

                                                      4.1-52





                  SECTION 1005.  Payment of Taxes and Other Claims.

                  The  Company  shall  pay or  discharge  or cause to be paid or
discharged,  before the same shall become delinquent, (a) all taxes, assessments
and  governmental  charges  levied or imposed upon the Company or any Restricted
Subsidiary  or upon the  income,  profits  or  property  of the  Company  or any
Restricted  Subsidiary  and (b) all  lawful  claims  for  labor,  materials  and
supplies which,  if unpaid,  might by law become a lien upon the property of the
Company or any Restricted Subsidiary;  provided, however, that the Company shall
not be required to pay or discharge or cause to be paid or  discharged  any such
tax,  assessment,  charge or claim whose  amount,  applicability  or validity is
being contested in good faith by appropriate proceedings.

                  SECTION 1006.  Maintenance of Properties.

                  The Company shall cause all properties owned by the Company or
any Restricted Subsidiary or used or held for use in the conduct of its business
or the business of any  Restricted  Subsidiary to be maintained and kept in good
condition,  repair and working order and supplied  with all necessary  equipment
and  shall  cause  to be made all  necessary  repairs,  renewals,  replacements,
betterments and improvements  thereof, all as in the judgment of the Company may
be necessary  so that the business  carried on in  connection  therewith  may be
properly and  advantageously  conducted at all times;  provided,  however,  that
nothing in this Section 1006 shall  prevent the Company from  discontinuing  the
maintenance of any of such properties if such discontinuance is, in the judgment
of the Company,  desirable in the conduct of its business or the business of any
Subsidiary and not disadvantageous in any material respect to the Holders.

                  SECTION 1007.  Insurance.

                  The  Company  shall  at all  times  keep  all of its  and  its
Restricted  Subsidiaries'  properties  which are of an insurable  nature insured
with insurers, believed by the Company to be responsible, against loss or damage
to the  extent  that  property  of  similar  character  is usually so insured by
Corporations similarly situated and owning like properties.

                  SECTION 1008.  Provision of Financial Statements.

                  The Company will file with the Trustee on the date on which it
files them with the  Commission  copies of the annual and quarterly  reports and
the  information,  documents,  and other reports that the Company is required to
file with the Commission  pursuant to Section 13(a) or 15(d) of the Exchange Act
("SEC Reports"). In the event the Company shall cease to be required to file SEC
Reports pursuant to the Exchange Act, the Company will nevertheless  continue to
file such reports with the  Commission  (unless the  Commission  will not accept
such a filing) and the  Trustee.  The  Company  will  furnish  copies of the SEC
Reports to the  holders of Notes at the time the Company is required to file the
same with the Trustee and will make such information  available to investors who
request it in writing.

                  SECTION 1009.  Statement by Officers as to Default.

                  (a) The Company shall  deliver to the Trustee,  on the date of
delivery of each  quarterly  report to be delivered  pursuant to Section 1008, a
brief  certificate from the principal  executive  officer,  principal  financial
officer  or  principal  accounting  officer  as to his or her  knowledge  of the
Company's compliance with all conditions and covenants under this Indenture. For
purposes of this Section 1009(a),  such compliance  shall be determined  without
regard to any period of grace or requirement of notice under this Indenture.

                                                      4.1-53





                  (b) When any Default has occurred and is continuing under this
Indenture,  or if the trustee for or the holder of any other evidence of Debt of
the  Company or any  Restricted  Subsidiary  gives any notice or takes any other
action with respect to a claimed default (other than with respect to Debt in the
principal  amount of less than  $5,000,000),  the Company  shall  deliver to the
Trustee by  registered  or  certified  mail or by  telegram,  telex or facsimile
transmission an Officers'  Certificate  specifying  such event,  notice or other
action within five Business Days of its occurrence.

                  SECTION 1010.  Purchase of Securities upon Change of Control.

                  (a) Upon the  occurrence  of a Change of Control,  each Holder
shall  have the right to  require  that the  Company  repurchase  such  Holder's
Securities in whole or in part in integral  multiples of $1,000 principal amount
at maturity,  in accordance  with the  procedures set forth in this Section 1010
and this Indenture.

                  (b) Within 30 days of the  occurrence  of a Change of Control,
the  Company  shall  mail an Offer  with  respect  to an Offer to  Purchase  all
Outstanding Securities at a price in cash equal to 101% of the Accreted Value of
the Securities on the purchase date plus any accrued and unpaid interest thereon
and  premium,  if any,  not  otherwise  included in the  Accreted  Value to such
purchase date.  Installments of interest (including  Liquidated  Interest) whose
Stated  Maturity  is on or prior to the  Purchase  Date  shall be payable to the
Holders of such Securities, or one or more Predecessor Securities, registered as
such at the close of business on the relevant  Record  Dates  according to their
terms and the provisions of Section 307. Each Holder shall be entitled to tender
all or any portion of the Securities  owned by such Holder pursuant to the Offer
to Purchase,  subject to the requirement that any portion of a Security tendered
must be tendered in an integral multiple of $1,000 principal amount at maturity.

                  (c) The Company and the Trustee shall perform their respective
obligations  for the Offer to Purchase as specified  in the Offer.  Prior to the
Purchase Date,  the Company shall (i) accept for payment  Securities or portions
thereof tendered  pursuant to the Offer, (ii) deposit with the Paying Agent (or,
if the Company is acting as its own Paying Agent, segregate and hold in trust as
provided in Section  1003) money  sufficient  to pay the  purchase  price of all
Securities  or  portions  thereof so accepted  and (iii)  deliver or cause to be
delivered to the Trustee all  Securities so accepted  together with an Officers'
Certificate  stating the Securities or portions  thereof accepted for payment by
the  Company.  The Paying  Agent  shall  promptly  mail or deliver to Holders of
Securities so accepted payment in an amount equal to the Purchase Price, and the
Trustee shall  promptly  authenticate  and mail or deliver to such Holders a new
Security or Securities  equal in principal amount at maturity to any unpurchased
portion of the Security surrendered as requested by the Holder. Any Security not
accepted for payment shall be promptly mailed or delivered by the Company to the
Holder thereof.

                  (d) A "Change of Control"  shall be deemed to have occurred at
such time as (i) a Rating  Decline  shall have  occurred and (ii) either (A) the
sale, conveyance, transfer or lease of all or substantially all of the assets of
the Company to any Person or any Persons acting together that would constitute a
"group" (a "Group") for purposes of Section 13(d) of the Exchange Act,  together
with any Affiliates or Related Persons thereof,  other than any Permitted Holder
or any  Restricted  Subsidiary,  shall have  occurred;  (B) any Person or Group,
together  with  any  Affiliates  or  Related  Persons  thereof,  other  than any
Permitted Holder or any Restricted  Subsidiary,  shall  beneficially own (within
the meaning of Rule 13d-3 under the Exchange Act,  except that a Person shall be
deemed to have beneficial ownership of all shares that such Person has the right
to acquire, whether such right is

                                                      4.1-54





exercisable  immediately  or only after the passage of time) at least 50% of the
aggregate  voting  power of all classes of Voting Stock of the Company at a time
when  Permitted  Holders own less than or equal to 25% of the  aggregate  voting
power of all classes of Voting Stock of the Company; or (C) during any period of
two consecutive years, Continuing Directors cease for any reason to constitute a
majority of the Board of Directors then in office.

                  (e) In the event that the  Company  makes an Offer to Purchase
the Securities, the Company shall comply with any applicable securities laws and
regulations, including any applicable requirements of Section 14(e) of, and Rule
14e-1 under, the Exchange Act.

                  SECTION 1011.  Limitation on Consolidated Debt.

                  (a) The Company shall not, and shall not permit any Restricted
Subsidiary to, Incur any Debt, unless, after giving effect to the application of
the  proceeds  thereof,  no  Default  or  Event  of  Default  would  occur  as a
consequence of such  Incurrence or be continuing  following such  Incurrence and
either (i) the ratio of (A) the aggregate  consolidated principal amount of Debt
of the Company  outstanding as of the most recent available  quarterly or annual
balance sheet,  after giving pro forma effect to the Incurrence of such Debt and
any other Debt  Incurred or repaid since such balance sheet date and the receipt
and application of the proceeds thereof, to (B) Consolidated Cash Flow Available
for  Fixed  Charges  for the  four  full  fiscal  quarters  next  preceding  the
Incurrence  of  such  Debt  for  which  consolidated  financial  statements  are
available, determined on a pro forma basis as if any such Debt had been Incurred
and the proceeds  thereof had been applied at the  beginning of such four fiscal
quarters,  would be less than 5.5 to 1.0 for Debt  Incurred on or prior to April
1,  2000  and 5.0 to 1.0 for Debt  Incurred  thereafter,  or (ii) the  Company's
Consolidated  Capital Ratio as of the most recent available  quarterly or annual
balance sheet,  after giving pro forma effect to the Incurrence of such Debt and
any other Debt  Incurred or repaid since such balance sheet date and the receipt
and application of the proceeds thereof, is less than 2.0 to 1.0.

                  (b)  Notwithstanding the foregoing limitation, the Company and
any Restricted Subsidiary may Incur any and all of the following (each of
which shall be given independent effect):

                (i) Debt under the Securities, this Indenture and any Restricted
         Subsidiary Guarantee;

                  (ii) (A) Debt  Incurred  subsequent  to March 31,  1997  under
         Credit  Facilities  in  an  aggregate  principal  amount  at  any  time
         outstanding   not  to  exceed  $150  million  plus  (B)  Debt  Incurred
         subsequent to March 31, 1997 under one or more Credit  Facilities  that
         are revolving credit facilities in an aggregate principal amount at any
         time  outstanding  not to exceed the greater of (x) $100 million or (y)
         85% of Eligible Receivables;

                  (iii)  Purchase  Money Debt,  provided that the amount of such
         Purchase   Money  Debt  does  not  exceed  100%  of  the  cost  of  the
         construction,   installation,   acquisition   or   improvement  of  the
         applicable Telecommunications Assets;

                  (iv) Debt owed by the Company to any Restricted  Subsidiary of
         the Company or Debt owed by a Restricted  Subsidiary  of the Company to
         the  Company  or a  Restricted  Subsidiary  of the  Company;  provided,
         however, that upon either (x) the transfer or other disposition by such
         Restricted  Subsidiary  or the  Company of any Debt so  permitted  to a
         Person other than the Company or another Restricted Subsidiary of the

                                                      4.1-55





         Company or (y) the issuance (other than directors'  qualifying shares),
         sale,  lease,  transfer or other disposition of shares of Capital Stock
         (including by consolidation or merger) of such Restricted Subsidiary to
         a Person other than the Company or another such Restricted  Subsidiary,
         the  provisions  of this clause (iv) shall no longer be  applicable  to
         such Debt and such Debt  shall be deemed to have been  Incurred  by the
         issuer thereof at the time of such transfer or other disposition;

                  (v) Debt  Incurred  to renew,  extend,  refinance,  defease or
         refund (each, a "refinancing") the Securities, the Senior Notes or Debt
         of the Company Incurred pursuant to clause (iii) of this paragraph (b),
         in an aggregate  principal amount not to exceed the aggregate principal
         amount  of and  accrued  interest  on the Debt so  refinanced  plus the
         amount  of any  premium  required  to be paid in  connection  with such
         refinancing  pursuant  to the  terms of the Debt so  refinanced  or the
         amount of any premium  reasonably  determined by the Board of Directors
         as necessary to accomplish such  refinancing by means of a tender offer
         or privately  negotiated  repurchase,  plus the expenses of the Company
         Incurred in connection with such refinancing;  provided,  however, that
         Debt the proceeds of which are used to refinance the Securities or Debt
         which is pari passu to the  Securities or Debt which is  subordinate in
         right of payment to the Securities  shall only be permitted  under this
         clause (v) if (A) in the case of any  refinancing  of the Securities or
         Debt which is pari passu to the  Securities,  the  refinancing  Debt is
         made pari passu to the  Securities or  constitutes  Subordinated  Debt,
         and,  in  the  case  of  any  refinancing  of  Subordinated  Debt,  the
         refinancing  Debt constitutes  Subordinated  Debt, and (B) in any case,
         the refinancing  Debt by its terms, or by the terms of any agreement or
         instrument  pursuant to which such Debt is issued, (x) does not provide
         for payments of principal of such Debt at Stated  Maturity or by way of
         a  sinking  fund  applicable   thereto  or  by  way  of  any  mandatory
         redemption, defeasance, retirement or repurchase thereof by the Company
         (including any redemption, retirement or repurchase which is contingent
         upon events or circumstances,  but excluding any retirement required by
         virtue of the  acceleration  of any payment  with  respect to such Debt
         upon any event of default  thereunder),  in each case prior to the time
         the same are  required by the terms of the Debt being  refinanced,  and
         (y) does not permit redemption or other retirement  (including pursuant
         to an offer to purchase made by the Company) of such Debt at the option
         of the holder  thereof  prior to the time the same are  required by the
         terms of the Debt being  refinanced,  other than a redemption  or other
         retirement at the option of the holder of such Debt (including pursuant
         to an offer to purchase made by the Company) which is conditioned  upon
         a change of control  pursuant to  provisions  substantially  similar to
         those described under Section 1010;

                  (vi)   Debt consisting of Permitted Interest Rate and Currency
         Protection Agreements;

                  (vii) Debt secured by Receivables originated by the Company or
         any Restricted  Subsidiary and related assets,  provided that such Debt
         is  nonrecourse  to  the  Company  and  any  of  its  other  Restricted
         Subsidiaries  and  provided  further  that  Receivables  shall  not  be
         available  at any time to secure Debt of the Company  under this clause
         (vii) to the  extent  that  they are used at such time as the basis for
         the  Incurrence  of Debt in excess of $100  million  pursuant to clause
         (ii)(B)(y) of this paragraph (b); and

                  (viii) Debt not otherwise permitted to be Incurred pursuant to
         clauses  (i)  through  (vii)  above,  which,  together  with any  other
         outstanding Debt Incurred pursuant to this clause (viii), has an

                                                      4.1-56





         aggregate principal amount not in excess of $25 million at any time
         outstanding.

                  SECTION 1012.  Limitation on Debt and Preferred Stock of
Restricted Subsidiaries.

                  The Company shall not permit any Restricted Subsidiary that is
not a Guarantor  to Incur any Debt or issue any  Preferred  Stock except any and
all of the following (each of which shall be given independent effect):

                  (i)      Restricted Subsidiary Guarantees;

                  (ii)   Debt of Restricted Subsidiaries under Credit Facilities
         permitted to be Incurred pursuant to clause (ii) of paragraph (b) of
         Section 1011;

                (iii)Purchase Money Debt of Restricted Subsidiaries permitted to
         be Incurred pursuant to clause (iii) of paragraph (b) of Section 1011;

                  (iv) Debt owed by a  Restricted  Subsidiary  of the Company to
         the Company or a Restricted  Subsidiary of the Company  permitted to be
         Incurred pursuant to clause (iv) of paragraph (b) of Section 1011;

                  (v) Debt of  Restricted  Subsidiaries  consisting of Permitted
         Interest  Rate  and  Currency  Protection  Agreements  permitted  to be
         Incurred pursuant to clause (vi) of paragraph (b) of Section 1011;

                  (vi) Debt of Restricted  Subsidiaries  secured by  Receivables
         originated  by the  Company or any  Restricted  Subsidiary  and related
         assets  permitted to be Incurred  pursuant to clause (vii) of paragraph
         (b) of Section 1011;

                  (vii) Debt of Restricted Subsidiaries permitted to be Incurred
         pursuant to clause (viii) of paragraph (b) of Section 1011;

                  (viii)  Preferred Stock issued to and held by the Company or a
         Restricted Subsidiary;

                  (ix) Debt Incurred or Preferred Stock issued by a Person prior
         to the time (A) such Person  became a Restricted  Subsidiary,  (B) such
         Person merges into or consolidates with a Restricted  Subsidiary or (C)
         another  Restricted  Subsidiary  merges into or consolidates  with such
         Person (in a  transaction  in which such  Person  becomes a  Restricted
         Subsidiary),  which Debt or Preferred  Stock was not Incurred or issued
         in anticipation of such  transaction and was outstanding  prior to such
         transaction; and

                  (x) Debt or  Preferred  Stock which is  exchanged  for, or the
         proceeds of which are used to renew, extend, refinance, defease, refund
         or redeem, any Debt of a Restricted Subsidiary permitted to be Incurred
         pursuant to clause  (iii) of this Section 1012 or any Debt or Preferred
         Stock of a Restricted  Subsidiary  permitted to be Incurred pursuant to
         clause (ix) of this Section 1012 (or any extension or renewal  thereof)
         (for  purposes  hereof,  a  "refinancing"),  in an aggregate  principal
         amount,  in  the  case  of  Debt,  or  with  an  aggregate  liquidation
         preference, in the case of Preferred Stock, not to exceed the aggregate
         principal amount of the Debt so refinanced or the aggregate liquidation
         preference of the Preferred Stock so refinanced, plus the amount of any
         premium  required  to be  paid  in  connection  with  such  refinancing
         pursuant to the terms of the Debt or Preferred  Stock so  refinanced or
         the  amount of any  premium  reasonably  determined  by the  Company as
         necessary to accomplish such  refinancing by means of a tender offer or
         privately

                                                      4.1-57





         negotiated  repurchase,  plus the amount of expenses of the Company and
         the applicable  Restricted Subsidiary Incurred in connection therewith,
         and provided the Debt or Preferred  Stock  Incurred or issued upon such
         refinancing,  by  its  terms,  or by the  terms  of  any  agreement  or
         instrument  pursuant to which such Debt or Preferred  Stock is Incurred
         or  issued,   (x)  does  not  provide  for  payments  of  principal  or
         liquidation  value at the  Stated  Maturity  of such Debt or  Preferred
         Stock or by way of a sinking fund  applicable to such Debt or Preferred
         Stock or by way of any mandatory redemption,  defeasance, retirement or
         repurchase  of such  Debt or  Preferred  Stock  by the  Company  or any
         Restricted   Subsidiary   (including  any  redemption,   retirement  or
         repurchase  which is  contingent  upon  events  or  circumstances,  but
         excluding any  retirement  required by virtue of  acceleration  of such
         Debt upon an event of  default  thereunder),  in each case prior to the
         time the same are required by the terms of the Debt or Preferred  Stock
         being refinanced and (y) does not permit redemption or other retirement
         (including  pursuant to an offer to  purchase  made by the Company or a
         Restricted Subsidiary) of such Debt or Preferred Stock at the option of
         the  holder  thereof  prior  to the  Stated  Maturity  of the  Debt  or
         Preferred  Stock being  refinanced,  other than a  redemption  or other
         retirement at the option of the holder of such Debt or Preferred  Stock
         (including  pursuant to an Offer to  Purchase  made by the Company or a
         Restricted  Subsidiary) which is conditioned upon the change of control
         of the Company  pursuant to provisions  substantially  similar to those
         contained in Section  1010,  and provided  further that, in the case of
         any  exchange  or  redemption  of  Preferred   Stock  of  a  Restricted
         Subsidiary,  such Preferred Stock may only be exchanged for or redeemed
         with Preferred Stock of such Restricted Subsidiary.

                  SECTION 1013.  Limitation on Restricted Payments.

                  The Company (i) shall not, and shall not permit any Restricted
Subsidiary to, directly or indirectly,  declare or pay any dividend, or make any
distribution,  in  respect  of its  Capital  Stock  or to the  holders  thereof,
excluding any dividends or distributions which are made solely to the Company or
a Restricted  Subsidiary  (and,  if such  Restricted  Subsidiary is not a Wholly
Owned Subsidiary,  to the other stockholders of such Restricted  Subsidiary on a
pro rata basis) or any dividends or  distributions  payable  solely in shares of
its Capital  Stock (other than  Disqualified  Stock) or in options,  warrants or
other rights to acquire its Capital Stock (other than Disqualified  Stock); (ii)
shall not, and shall not permit any Restricted  Subsidiary to, purchase,  redeem
or otherwise  retire or acquire for value (x) any Capital  Stock of the Company,
any  Restricted  Subsidiary or any Related  Person of the Company  (other than a
permitted  refinancing)  or (y) any  options,  warrants or rights to purchase or
acquire shares of Capital Stock of the Company, any Restricted Subsidiary or any
Related Person of the Company or any securities convertible or exchangeable into
shares of Capital Stock of the Company, any Restricted Subsidiary or any Related
Person of the Company (other than a permitted refinancing),  except, in any such
case, any such purchase,  redemption or retirement or acquisition for value paid
to the  Company  or a  Restricted  Subsidiary  (or,  in the  event  of any  such
purchase,  redemption or other  retirement or acquisition for value with respect
to a Restricted  Subsidiary that is not a Wholly Owned  Subsidiary,  paid to the
Company  or a  Restricted  Subsidiary,  or to the  other  stockholders  of  such
Restricted  Subsidiary  that is not a  Wholly  Owned  Subsidiary,  on a pro rata
basis);  (iii) shall not make, or permit any Restricted  Subsidiary to make, any
Investment in, or payment on a Guarantee of any obligation of, any Person, other
than the Company or a Restricted  Subsidiary;  and (iv) shall not, and shall not
permit any  Restricted  Subsidiary to, redeem,  defease,  repurchase,  retire or
otherwise  acquire  or  retire  for  value,  prior  to any  scheduled  maturity,
repayment or sinking fund payment,  Debt of the Company which is  subordinate in
right of payment to the Securities (other than a permitted refinancing) (each of
clauses (i) through

                                                      4.1-58





(iv) being a "Restricted Payment") if: (1) an Event of Default, or an event that
with the passing of time or the giving of notice,  or both,  would constitute an
Event of Default,  shall have  occurred  and be  continuing,  or (2) upon giving
effect to such Restricted Payment, the Company could not Incur at least $1.00 of
additional  Debt  pursuant to the terms of paragraph (a) of Section 1011, or (3)
upon giving effect to such Restricted  Payment,  the aggregate of all Restricted
Payments  from  March  31,  1997  exceeds  the  sum of:  (a)  50% of  cumulative
Consolidated Net Income (or, in the event that  Consolidated Net Income shall be
negative,  100% of such  negative  amount) since the end of the last full fiscal
quarter  prior to March 31,  1997  through  the last day of the last full fiscal
quarter  ending at least 45 days prior to the date of such  Restricted  Payment,
(b) plus $5 million,  (c) less, in the case of any Designation with respect to a
Restricted Subsidiary that was made after March 31, 1997, an amount equal to the
Designation Amount with respect to such Restricted Subsidiary,  (d) plus, in the
case of any Revocation  made after March 31, 1997, an amount equal to the lesser
of the  Designation  Amount with respect to the Subsidiary with respect to which
such  Designation  was made or the Fair Market  Value of the  Investment  of the
Company  and its  Restricted  Subsidiaries  in such  Subsidiary  at the  time of
Revocation;  provided,  however,  that the Company or a Restricted Subsidiary of
the Company may make any Restricted Payment with the aggregate net cash proceeds
received  after March 31, 1997 as capital  contributions  to the Company or from
the  issuance  (other  than  to a  Subsidiary)  of  Capital  Stock  (other  than
Disqualified  Stock) of the Company and  warrants,  rights or options on Capital
Stock (other than Disqualified Stock) of the Company and the principal amount of
Debt of the Company  that has been  converted  into  Capital  Stock  (other than
Disqualified  Stock and other than by a  Subsidiary)  of the Company after March
31, 1997.

                  Notwithstanding the foregoing limitation,  (i) the Company and
any Restricted Subsidiary may make Permitted  Investments;  (ii) the Company may
pay any  dividend on Capital  Stock of any class of the  Company  within 60 days
after the  declaration  thereof if, on the date when the dividend was  declared,
the Company  could have paid such  dividend  in  accordance  with the  foregoing
provisions;  (iii) the Company may  repurchase any shares of its Common Stock or
options to acquire its Common  Stock from Persons who were  formerly  directors,
officers or employees of the Company or any of its  Subsidiaries  or Affiliates,
provided that the aggregate amount of all such repurchases made pursuant to this
clause (iii) shall not exceed $1 million in any  twelve-month  period;  (iv) the
Company and any Restricted Subsidiary may refinance any Debt otherwise permitted
by clause (v) of paragraph  (b) of Section  1011 or clause (x) of Section  1012;
and (v) the Company and any  Restricted  Subsidiary may retire or repurchase any
Capital Stock of the Company or of any Restricted Subsidiary in exchange for, or
out of the  proceeds  of the  substantially  concurrent  sale  (other  than to a
Subsidiary of the Company) of, Capital Stock (other than Disqualified  Stock) of
the Company.

                  SECTION 1014.  Limitation on Dividend and Other Payment
Restrictions Affecting Restricted Subsidiaries.

                  (a) The Company shall not, and shall not permit any Restricted
Subsidiary to,  directly or indirectly,  create or otherwise  cause or suffer to
exist or become  effective any  consensual  encumbrance  or  restriction  on the
ability of any Restricted Subsidiary (i) to pay dividends (in cash or otherwise)
or make any other  distributions  in respect of its  Capital  Stock owned by the
Company  or  any  other  Restricted  Subsidiary  or to pay  any  Debt  or  other
obligation owed to the Company or any other Restricted Subsidiary;  (ii) to make
loans or advances to the Company or any other Restricted Subsidiary; or (iii) to
transfer  any of its  property or assets to the Company or any other  Restricted
Subsidiary.


                                                      4.1-59





                  (b) Notwithstanding the foregoing limitation, the Company may,
and may permit any Restricted Subsidiary to, create or otherwise cause or suffer
to exist any such  encumbrance or  restriction  (i) pursuant to any agreement in
effect  on  March  31,  1997;  (ii) any  customary  encumbrance  or  restriction
applicable  to a  Restricted  Subsidiary  that is  contained  in an agreement or
instrument  governing or relating to Debt contained in any Credit  Facilities or
Purchase Money Debt,  provided that the provisions of such agreement  permit the
payment of interest and mandatory payment or prepayment of principal pursuant to
the terms of this  Indenture and the Securities and other Debt that is solely an
obligation  of the  Company,  but  provided  further  that  such  agreement  may
nevertheless contain customary net worth,  leverage,  invested capital and other
financial covenants,  customary covenants regarding the merger of or sale of all
or  any  substantial  part  of  the  assets  of the  Company  or any  Restricted
Subsidiary,   customary  restrictions  on  transactions  with  Affiliates,   and
customary  subordination  provisions  governing  Debt owed to the Company or any
Restricted  Subsidiary;  (iii) pursuant to an agreement relating to any Acquired
Debt, which  encumbrance or restriction is not applicable to any Person,  or the
properties  or assets of any  Person,  other than the Person so  acquired;  (iv)
pursuant to an agreement effecting a renewal,  refunding,  permitted refinancing
or extension  of Debt  Incurred  pursuant to an agreement  referred to in clause
(i), (ii) or (iii) of this paragraph (b), provided, however, that the provisions
contained  in  such  renewal,  refunding,  permitted  refinancing  or  extension
agreement relating to such encumbrance or restriction are no more restrictive in
any material respect than the provisions  contained in the agreement the subject
thereof;  (v) in the case of clause (iii) of paragraph (a) of this Section 1014,
restrictions  contained in any  security  agreement  (including a Capital  Lease
Obligation)  securing Debt of the Company or a Restricted  Subsidiary  otherwise
permitted  under  this  Indenture,  but  only to the  extent  such  restrictions
restrict the transfer of the property subject to such security  agreement;  (vi)
in the case of clause (iii) of paragraph  (a) of this  Section  1014,  customary
nonassignment  provisions  entered  into in the  ordinary  course of business in
leases and other agreements and customary  restrictions  contained in asset sale
agreements  limiting the transfer of such property or assets pending the closing
of such sale;  (vii) any  restriction  with respect to a  Restricted  Subsidiary
imposed  pursuant to an  agreement  which has been  entered into for the sale or
disposition of all or  substantially  all of the Capital Stock or assets of such
Restricted Subsidiary,  provided that the consummation of such transaction would
not result in a Default or an Event of Default, that such restriction terminates
if such  transaction is not consummated and that the consummation or abandonment
of such  transaction  occurs  within  one year of the date  such  agreement  was
entered  into;  (viii)  pursuant to  applicable  law; and (ix)  pursuant to this
Indenture and the Securities.

                  SECTION 1015.  Limitation on Liens.

                  The  Company  shall not,  and shall not permit any  Restricted
Subsidiary  to,  Incur or  suffer to exist  any Lien on or with  respect  to any
property or assets now owned or acquired after March 31, 1997 to secure any Debt
without  making,  or  causing  such  Restricted  Subsidiary  to make,  effective
provision for securing the  Securities (x) equally and ratably with such Debt as
to such property for so long as such Debt will be so secured or (y) in the event
such Debt is Debt of the Company which is subordinate in right of payment to the
Securities, prior to such Debt as to such property for so long as such Debt will
be so secured.

                  The  foregoing  restrictions  shall not  apply  to:  (i) Liens
existing on March 31, 1997 and securing Debt outstanding on March 31, 1997; (ii)
Liens in favor of the  Company  or any  Restricted  Subsidiary;  (iii)  Liens to
secure the Securities;  (iv) Liens to secure Restricted  Subsidiary  Guarantees;
(v) Liens to secure  Debt  under  Credit  Facilities  permitted  to be  Incurred
pursuant

                                                      4.1-60





to clause (ii) of paragraph (b) of Section 1011;  (vi) Liens on real or personal
property  of the  Company or a  Restricted  Subsidiary  constructed,  installed,
acquired or constituting  improvements  made after the date of original issuance
of the  Securities  to secure  Purchase  Money  Debt  permitted  to be  Incurred
pursuant to clause (iii) of paragraph  (b) of Section 1011,  provided,  however,
that (a) the principal amount of any Debt secured by such a Lien does not exceed
100% of such purchase price or cost of construction, installation or improvement
of the property  subject to such Lien,  (b) such Lien  attaches to such property
prior  to,  at the  time of or  within  270  days  after  the  acquisition,  the
completion of  construction,  installation or improvement or the commencement of
operation  of such  property  and (c) such Lien does not  extend to or cover any
property other than the specific item of property (or portion thereof) acquired,
constructed, installed or constituting the improvements financed by the proceeds
of such Purchase  Money Debt;  (vii) Liens to secure  Acquired  Debt,  provided,
however,  that (a) such Lien attaches to the acquired asset prior to the time of
the  acquisition of such asset and (b) such Lien does not extend to or cover any
other asset; (viii) Liens to secure Debt Incurred to extend, renew, refinance or
refund (or successive extensions renewals, refinancings or refundings), in whole
or in part,  Debt secured by any Lien referred to in the foregoing  clauses (i),
(iii),  (iv), (v), (vi) and (vii) of this Section 1015 so long as such Lien does
not extend to any other property and the principal  amount of Debt so secured is
not increased except as otherwise permitted under clause (v) of paragraph (b) of
Section 1011 or clause (x) of Section 1012; (ix) Liens to secure debt consisting
of Permitted Interest Rate and Currency  Protection  Agreements  permitted to be
Incurred  pursuant to clause (vi) of paragraph (b) of Section 1011; (x) Liens to
secure Debt secured by Receivables  permitted to be Incurred  pursuant to clause
(vii) of paragraph (b) of Section 1011;  (xi) Liens to secure Debt of Restricted
Subsidiaries permitted to be Incurred pursuant to clause (viii) of paragraph (b)
of Section 1011;  (xii) Liens not otherwise  permitted by the foregoing  clauses
(i)  through  (xi) in an amount not to exceed 5% of the  Company's  Consolidated
Tangible Assets; and (xiii) Permitted Liens.

                SECTION 1016.  Limitation on Issuances of Certain Guarantees by,
and Debt Securities of, Restricted Subsidiaries.

                  The Company shall not (i) permit any Restricted Subsidiary to,
directly or  indirectly,  guarantee  any Debt  Securities of the Company or (ii)
permit any Restricted  Subsidiary to issue any Debt Securities unless, in either
such case, such  Restricted  Subsidiary  simultaneously  executes and delivers a
Restricted  Subsidiary  Guarantee  providing  for a Guarantee  of payment of the
Securities.

                  SECTION 1017.  Limitation on Sale and Leaseback Transactions.

                  The  Company  shall not,  and shall not permit any  Restricted
Subsidiary  to,  directly  or  indirectly,  enter  into,  assume,  Guarantee  or
otherwise  become  liable with  respect to any Sale and  Leaseback  Transaction,
other than a Sale and Leaseback  Transaction between the Company or a Restricted
Subsidiary  on the one hand and a  Restricted  Subsidiary  or the Company on the
other  hand,  unless (i) the  Company  or such  Restricted  Subsidiary  would be
entitled to Incur a Lien to secure Debt by reason of the  provisions  of Section
1015,  equal in  amount  to the  Attributable  Value  of the Sale and  Leaseback
Transaction,  without  equally and ratably  securing the Securities and (ii) the
Sale and Leaseback Transaction is treated as an Asset Disposition and all of the
conditions of Section 1018 (including the provisions  concerning the application
of Net Available Proceeds) are satisfied with respect to such Sale and Leaseback
Transaction,  treating  all of the  consideration  received  in  such  Sale  and
Leaseback  Transaction  as Net  Available  Proceeds for purposes of such Section
1018.


                                                      4.1-61





                  SECTION 1018.  Limitation on Asset Dispositions.

                  The  Company  shall not,  and shall not permit any  Restricted
Subsidiary  to,  make any  Asset  Disposition  unless:  (i) the  Company  or the
Restricted  Subsidiary,  as the case  may be,  receives  consideration  for such
disposition  at least  equal to the Fair  Market  Value for the  assets  sold or
disposed of as  determined by the Board of Directors in good faith and evidenced
by a Board  Resolution;  and (ii) at  least  75% of the  consideration  for such
disposition  consists of cash or cash  equivalents  or the assumption of Debt of
the Company (other than Debt that is  subordinated  to the Securities) or of the
Restricted Subsidiary and release from all liability on the Debt assumed. If the
aggregate of Net Available  Proceeds within any  twelve-month  period exceeds $5
million,  then all such Net Available  Proceeds shall be applied within 360 days
of the last such Asset  Disposition  (1) first,  to the  permanent  repayment or
reduction of Debt then outstanding under any Credit Facility, to the extent such
agreements  would  require such  application  or prohibit  payments  pursuant to
clause (2)  following;  (2) second,  to the extent of  remaining  Net  Available
Proceeds, to make an Offer to Purchase Outstanding Securities at a price in cash
equal to 100% of the Accreted  Value of the Securities on the purchase date plus
accrued and unpaid interest thereon and premium,  if any, not otherwise included
in the Accreted  Value to such purchase date and, to the extent  required by the
terms  thereof,  any  other  Debt of the  Company  that is pari  passu  with the
Securities at a price no greater than 100% of the principal  amount thereof plus
accrued and unpaid  interest to the purchase date (or 100% of the accreted value
plus accrued and unpaid  interest and premium,  if any, to the purchase  date in
the case of  original  issue  discount  Debt);  (3) third,  to the extent of any
remaining  Net  Available  Proceeds  following  the  completion  of the Offer to
Purchase,  to the repayment of other Debt of the Company or Debt of a Restricted
Subsidiary,  to the extent permitted under the terms thereof; and (4) fourth, to
the  extent  of any  remaining  Net  Available  Proceeds,  to any  other  use as
determined by the Company which is not otherwise prohibited by this Indenture.

               SECTION 1019.  Limitation on Issuances and Sales of Capital Stock
of Restricted Subsidiaries.

                  The  Company  shall not,  and shall not permit any  Restricted
Subsidiary to, issue, transfer,  convey, sell or otherwise dispose of any shares
of  Capital  Stock of a  Restricted  Subsidiary  or  securities  convertible  or
exchangeable  into,  or options,  warrants,  rights or any other  interest  with
respect to,  Capital  Stock of a Restricted  Subsidiary to any Person other than
the Company or a Restricted  Subsidiary except: (i) a sale of all of the Capital
Stock of such  Restricted  Subsidiary  owned by the Company  and any  Restricted
Subsidiary  that complies with the provisions of Section 1018 to the extent such
provisions  apply;  (ii)  in a  transaction  that  results  in  such  Restricted
Subsidiary  becoming a Permitted  Joint Venture,  provided (x) such  transaction
complies with the provisions of Section 1018 to the extent such provisions apply
and (y) the Company's remaining Investment in such Permitted Joint Venture would
have been  permitted as a new  Investment  under the provisions of Section 1013;
(iii) the transfer,  conveyance, sale or other disposition of shares required by
applicable  law  or  regulation;  (iv)  if  required,  the  issuance,  transfer,
conveyance,  sale or other disposition of directors'  qualifying  shares; or (v)
Disqualified  Stock  issued  in  exchange  for,  or upon  conversion  of, or the
proceeds  of the  issuance  of which are used to redeem,  refinance,  replace or
refund,  shares of Disqualified  Stock of such Restricted  Subsidiary,  provided
that the amounts of the redemption  obligations of such Disqualified Stock shall
not exceed the amounts of the redemption  obligations of, and such  Disqualified
Stock shall have  redemption  obligations no earlier than those required by, the
Disqualified Stock being exchanged, converted, redeemed, refinanced, replaced or
refunded.


                                                      4.1-62





                SECTION 1020.  Transactions with Affiliates and Related Persons.

                  The  Company  shall not,  and shall not permit any  Restricted
Subsidiary to, enter into any  transaction  (or series of related  transactions)
with an Affiliate or Related  Person of the Company (other than the Company or a
Restricted Subsidiary),  including any Investment, unless such transaction is on
terms no less favorable to the Company or such Restricted  Subsidiary than those
that could be obtained in a comparable  arm's-length  transaction with an entity
that is not an Affiliate or Related  Person and is in the best  interests of the
Company  or  such  Restricted  Subsidiary,  provided  that  the  Company  or any
Restricted Subsidiary may enter into: (i) transactions pursuant to the Company's
tax sharing agreement entered into with Anschutz Company existing at the date of
execution of this Indenture  described under the caption "Certain  Transactions"
in the Offering  Memorandum,  provided that any  amendment of,  supplement to or
substitute  for such  agreement  is on terms that are no less  favorable  to the
Company  or such  Restricted  Subsidiary  than  such  existing  agreement;  (ii)
transactions  pursuant to  employee  compensation  arrangements  approved by the
Board of Directors,  either directly or indirectly;  and (iii) Receivables Sales
between the Company or a Restricted  Subsidiary  and an Affiliate of the Company
or such Restricted Subsidiary,  provided that such Receivables Sales satisfy the
provisions of clauses (i) and (ii) of Section  1018.  For any  transaction  that
involves  in excess of $10 million  but less than or equal to $15  million,  the
Company shall deliver to the Trustee an Officers'  Certificate  stating that the
transaction  satisfies the above criteria.  For any transaction that involves in
excess of $15 million,  a majority of the disinterested  members of the Board of
Directors shall determine that the transaction  satisfies the above criteria and
shall evidence such a determination  by a Board Resolution or, in the event that
there shall not be disinterested  members of the Board of Directors with respect
to the  transaction,  the Company shall file with the Trustee a written  opinion
stating that the  transaction  satisfies  the above  criteria from an investment
banking firm of national  standing in the United States which, in the good faith
judgment of the Board of Directors,  is independent  with respect to the Company
and its Affiliates and qualified to perform such task.

                  SECTION 1021.  Limitation on Designations of Unrestricted
Subsidiaries.

                  The Company shall not designate any  Subsidiary of the Company
(other than a newly created  Subsidiary in which no  Investment  has  previously
been made) as an Unrestricted Subsidiary (a "Designation") unless:

                  (a)  no Default or Event of Default shall have occurred and be
         continuing at the time of or after giving effect to such Designation;

                  (b)   immediately after giving effect to such Designation, the
         Company would be able to Incur $1.00 of Debt under paragraph (a) of
         Section 1011; and

                  (c) the Company would not be prohibited under any provision of
         this  Indenture  from making an Investment  at the time of  Designation
         (assuming  the  effectiveness  of such  Designation)  in an amount (the
         "Designation  Amount")  equal  to the  Fair  Market  Value  of the  net
         Investment  of the Company or any other  Restricted  Subsidiary in such
         Restricted Subsidiary on such date.

                  In the event of any such  Designation,  the  Company  shall be
deemed to have made an Investment  constituting a Restricted Payment pursuant to
Section 1013 for all purposes of this Indenture in the  Designation  Amount.  In
addition,  neither the Company nor any Restricted  Subsidiary  shall at any time
(x) provide credit support for, or a guarantee of, any Debt of any

                                                      4.1-63





Unrestricted  Subsidiary  (including  any  undertaking,  agreement or instrument
evidencing such Debt),  provided that the Company or a Restricted Subsidiary may
pledge  Capital  Stock or Debt of any  Unrestricted  Subsidiary on a nonrecourse
basis such that the pledgee has no claim  whatsoever  against the Company  other
than to obtain such pledged  property,  (y) be directly or indirectly liable for
any Debt of any Unrestricted  Subsidiary or (z) be directly or indirectly liable
for any Debt which provides that the holder  thereof may (upon notice,  lapse of
time or both)  declare a default  thereon  or cause the  payment  thereof  to be
accelerated or payable prior to its final scheduled maturity upon the occurrence
of a default with respect to any Debt of any Unrestricted  Subsidiary (including
any right to take  enforcement  action  against such  Unrestricted  Subsidiary),
except in the case of clause (x) or (y) to the extent  permitted  under  Section
1013 or 1020.

                  A  Designation  may be  revoked  (a  "Revocation")  by a Board
Resolution, provided that the Company shall not make any Revocation unless:

                  (a)  no Default or Event of Default shall have occurred and be
         continuing at the time of and after giving effect to such Revocation;
         and

                  (b)  all  Liens  and  Debt  of  such  Unrestricted  Subsidiary
         outstanding immediately following such Revocation would, if Incurred at
         such time,  have been  permitted  to be  Incurred  at such time for all
         purposes of this Indenture.

                  All  Designations  and Revocations  must be evidenced by Board
Resolutions certifying compliance with the foregoing provisions.

                 SECTION 1022.  No Repayment of Existing Parent Company Advances
with the Proceeds of the Securities.

                  The Company shall not apply any portion of the proceeds of the
offering of the Securities  toward the repayment of advances made to the Company
or any of its  subsidiaries by any parent company of the Company  outstanding at
the date of execution of this Indenture.

                  SECTION 1023.  Waiver of Certain Covenants.

                  The Company may omit in any particular instance to comply with
any term,  provision  or  condition  set forth in Sections  1007  through  1022,
inclusive,  if before or after the time for such  compliance  the  Holders of at
least a majority in principal  amount of the Outstanding  Securities,  by Act of
such Holders,  waive such compliance in such instance with such term,  provision
or condition,  but no such waiver shall extend to or affect such term, provision
or condition  except to the extent so expressly  waived,  and, until such waiver
shall become  effective,  the  obligations  of the Company and the duties of the
Trustee in respect of any such term, provision or condition shall remain in full
force and effect.

                  SECTION 1024.  Trustee Not to Monitor Performance.

                  The  Trustee  shall have no duty to  confirm  or  monitor  the
performance by the Company of its duties  pursuant to the covenants set forth in
this Article Ten.



                                                      4.1-64





                                                  ARTICLE ELEVEN

                                             REDEMPTION OF SECURITIES

                  SECTION 1101.  Right of Redemption.

                  The Securities  will be subject to redemption at the option of
the Company,  in whole or in part,  at any time or from time to time on or after
October 15,  2002,  upon not less than 30 nor more than 60 days'  prior  notice,
subject to the conditions and at the redemption prices (expressed as percentages
of Accreted  Value) set forth in the form of  Security,  plus accrued and unpaid
interest thereon (if any) to the Redemption Date.

                  SECTION 1102.  Applicability of Article.

                  Redemption  of  Securities  at the  election of the Company or
otherwise, as permitted or required by any provision of this Indenture, shall be
made in accordance with such provision and this Article.

                  SECTION 1103.  Election to Redeem; Notice to Trustee.

                  The election of the Company to redeem any Securities  pursuant
to  Section  1101  shall  be  evidenced  by a Board  Resolution.  In case of any
redemption at the election of the Company,  the Company shall,  at least 60 days
prior to the Redemption Date fixed by the Company (unless a shorter notice shall
be satisfactory to the Trustee),  notify the Trustee of such Redemption Date and
of the  principal  amount at maturity  of  Securities  to be redeemed  and shall
deliver to the  Trustee  such  documentation  and  records  as shall  enable the
Trustee to select the Securities to be redeemed pursuant to Section 1104.

               SECTION 1104.  Selection by Trustee of Securities to Be Redeemed.

                  If  less  than  all the  Securities  are to be  redeemed,  the
particular  Securities  to be redeemed  shall be selected  not more than 60 days
prior to the Redemption Date by the Trustee, from the Outstanding Securities not
previously called for redemption,  by such method as the Trustee shall deem fair
and  appropriate  and which may  provide for the  selection  for  redemption  of
portions of the principal amount at maturity of Securities;  provided,  however,
that no such partial redemption shall reduce the portion of the principal amount
at maturity of a Security not redeemed to less than $1,000.

                  The Trustee  shall  promptly  notify the Company in writing of
the  Securities  selected  for  redemption  and,  in the case of any  Securities
selected for partial redemption,  the principal amount at maturity thereof to be
redeemed.

                  For  all  purposes  of  this  Indenture,  unless  the  context
otherwise  requires,  all provisions  relating to redemption of Securities shall
relate,  in the case of any Security redeemed or to be redeemed only in part, to
the portion of the Accreted  Value of such  Security  which has been or is to be
redeemed.

                  SECTION 1105.  Notice of Redemption.

                  Notice of redemption shall be given in the manner provided for
in Section  106 not less than 30 nor more than 60 days  prior to the  Redemption
Date, to each Holder of Securities to be redeemed.

                  Each notice of redemption shall state:

                  (1)      the Redemption Date,

                                                      4.1-65





                  (2) the Redemption Price and the amount of accrued interest to
         the Redemption Date payable as provided in Section 1107, if any,

                  (3)  if  less  than  all  Outstanding  Securities  are  to  be
         redeemed, the identification (and, in the case of a partial redemption,
         the principal  amount at maturity) of the  particular  Securities to be
         redeemed,

                  (4) in case any Security is to be redeemed in part only,  that
         on and after the Redemption Date, upon surrender of such Security,  the
         Holder will receive,  without  charge,  a new Security or Securities of
         authorized  denominations  for the principal amount at maturity thereof
         remaining unredeemed,

                  (5) that on the  Redemption  Date the  Redemption  Price  (and
         accrued interest, if any, to the Redemption Date payable as provided in
         Section 1107) will become due and payable upon each such  Security,  or
         the portion  thereof,  to be redeemed,  and that interest  thereon will
         cease to accrue on and after said date, and

                  (6)      the place or places where such Securities are to be
         presented and surrendered for payment of the Redemption Price and
         accrued interest, if any.

                  Notice of  redemption  of  Securities  to be  redeemed  at the
election  of the  Company  shall be given by the  Company  or, at the  Company's
request, by the Trustee in the name and at the expense of the Company.

                  SECTION 1106.  Deposit of Redemption Price.

                  Prior to any  Redemption  Date, the Company shall deposit with
the  Trustee  or with a Paying  Agent (or,  if the  Company is acting as its own
Paying Agent, segregate and hold in trust as provided in Section 1003) an amount
of money sufficient to pay the Redemption Price of, and accrued interest on, all
the Securities which are to be redeemed on that date.

                  SECTION 1107.  Securities Payable on Redemption Date.

                  Notice of  redemption  having  been  given as  aforesaid,  the
Securities  so to be redeemed  shall,  on the  Redemption  Date,  become due and
payable  at the  Redemption  Price  therein  specified  (together  with  accrued
interest,  if any, to the Redemption Date), and from and after such date (unless
the Company  shall  default in the payment of the  Redemption  Price and accrued
interest) such  Securities  shall cease to bear interest.  Upon surrender of any
such Security for redemption in accordance with said notice, such Security shall
be paid by the Company at the Redemption Price,  together with accrued interest,
if any, to the Redemption Date; provided, however, that installments of interest
whose Stated  Maturity is on or prior to the Redemption Date shall be payable to
the  Holders  of  such  Securities,  or  one  or  more  Predecessor  Securities,
registered  as such at the  close  of  business  on the  relevant  Record  Dates
according to their terms and the provisions of Section 307.

                  If any  Security  called for  redemption  shall not be so paid
upon  surrender  thereof for  redemption,  the principal or Accreted  Value (and
premium, if any) shall, until paid, accrete or bear interest from the Redemption
Date at the rate of accretion of and interest rate borne by the Securities.


                                                      4.1-66





                  SECTION 1108.  Securities Redeemed in Part.

                  Any  Security  which is to be  redeemed  only in part shall be
surrendered  at the office or agency of the Company  maintained for such purpose
pursuant to Section 1002 (with,  if the Company or the Trustee so requires,  due
endorsement by, or a written  instrument of transfer in form satisfactory to the
Company and the Trustee duly  executed by, the Holder  thereof or such  Holder's
attorney duly  authorized in writing),  and the Company shall  execute,  and the
Trustee shall  authenticate  and deliver to the Holder of such Security  without
service charge, a new Security or Securities,  of any authorized denomination as
requested by such Holder, in aggregate principal amount at maturity equal to and
in exchange for the  unredeemed  portion of the principal  amount at maturity of
the Security so surrendered.


                                                  ARTICLE TWELVE

                                        DEFEASANCE AND COVENANT DEFEASANCE

                SECTION 1201.  Company's Option to Effect Defeasance or Covenant
Defeasance.

                  The  Company  may, at its option by Board  Resolution,  at any
time,  with  respect to the  Securities,  elect to have either  Section  1202 or
Section 1203 be applied to all  Outstanding  Securities upon compliance with the
conditions set forth below in this Article Twelve.

                  SECTION 1202.  Defeasance and Discharge.

                  Upon the Company's  exercise  under Section 1201 of the option
applicable  to this  Section  1202,  the  Company  shall be  deemed to have been
discharged  from its obligations  with respect to all Outstanding  Securities on
the date the  conditions  set forth in Section 1204 are satisfied  (hereinafter,
"defeasance"). For this purpose, such defeasance means that the Company shall be
deemed to have paid and  discharged the entire  indebtedness  represented by the
Outstanding  Securities,  which shall  thereafter be deemed to be  "Outstanding"
only for the purposes of Section 1205 and the other  Sections of this  Indenture
referred to in clauses (A) and (B) below,  and to have  satisfied  all its other
obligations  under such Securities and this Indenture insofar as such Securities
are  concerned  (and the Trustee,  at the expense of the Company,  shall execute
proper instruments acknowledging the same), except for the following which shall
survive until otherwise  terminated or discharged  hereunder:  (A) the rights of
Holders  of  Outstanding  Securities  to  receive,  solely  from the trust  fund
described in Section 1204 and as more fully set forth in such Section,  payments
in respect of the principal or Accreted Value of, premium,  if any, and interest
on such  Securities  when such payments are due, (B) the  Company's  obligations
with respect to such Securities under Sections 304, 305, 306, 1002 and 1003, (C)
the rights,  powers,  trusts, duties and immunities of the Trustee hereunder and
(D) this Article Twelve.  Subject to compliance  with this Article  Twelve,  the
Company may exercise its option  under this  Section  1202  notwithstanding  the
prior exercise of its option under Section 1203 with respect to the Securities.

                  SECTION 1203.  Covenant Defeasance.

                  Upon the Company's  exercise  under Section 1201 of the option
applicable  to this  Section  1203,  the  Company  shall  be  released  from its
obligations under any covenant  contained in Section 801(4) and in Sections 1007
through 1021 with respect to the  Outstanding  Securities  on and after the date
the   conditions   set  forth  below  are  satisfied   (hereinafter,   "covenant
defeasance"), and the Securities shall thereafter be deemed not to

                                                      4.1-67





be  "Outstanding"  for  the  purposes  of  any  direction,  waiver,  consent  or
declaration  or Act  of  Holders  (and  the  consequences  of  any  thereof)  in
connection  with such covenants,  but shall continue to be deemed  "Outstanding"
for all other purposes  hereunder.  For this purpose,  such covenant  defeasance
means that, with respect to the Outstanding Securities,  the Company may omit to
comply with and shall have no  liability  in respect of any term,  condition  or
limitation set forth in any such covenant,  whether  directly or indirectly,  by
reason of any  reference  elsewhere  herein to any such covenant or by reason of
any reference in any such covenant to any other provision herein or in any other
document and such omission to comply shall not  constitute a Default or an Event
of Default  under Section  501(3),  501(4) or 501(5),  but,  except as specified
above,  the remainder of this Indenture and such Securities  shall be unaffected
thereby.

                 SECTION 1204.  Conditions to Defeasance or Covenant Defeasance.

                  The following shall be the conditions to application of either
Section 1202 or Section 1203 to the Outstanding Securities:

                  (1) The Company shall  irrevocably have deposited or caused to
         be  deposited  with the  Trustee  (or another  trustee  satisfying  the
         requirements  of  Section  608 who  shall  agree  to  comply  with  the
         provisions of this Article  Twelve  applicable to it) as trust funds in
         trust for the purpose of making the  following  payments,  specifically
         pledged as security  for, and  dedicated  solely to, the benefit of the
         Holders of such Securities:  (A) money in an amount,  or (B) Government
         Securities  which  through  the  scheduled  payment  of  principal  and
         interest  in  respect  thereof  in  accordance  with  their  terms will
         provide,  not later than one day before the due date of any  payment in
         respect of the  Securities,  money in an amount,  or (C) a  combination
         thereof,  sufficient, in the opinion of a nationally recognized firm of
         independent  public  accountants  expressed in a written  certification
         thereof delivered to the Trustee, to pay and discharge, and which shall
         be applied by the  Trustee  (or other  qualifying  trustee)  to pay and
         discharge, the principal or Accreted Value of (and premium, if any) and
         interest  on the  Outstanding  Securities  on the Stated  Maturity  (or
         Redemption  Date, if  applicable)  of such  principal or Accreted Value
         (and premium,  if any) or  installment  of interest;  provided that the
         Trustee shall have been irrevocably instructed in writing to apply such
         money or the proceeds of such  Government  Securities  to said payments
         with respect to the Securities.  Before such a deposit, the Company may
         give to the Trustee,  in accordance  with Section 1103, a notice of its
         election to redeem all of the  Outstanding  Securities at a future date
         in accordance with Article  Eleven,  which notice shall be irrevocable.
         Such irrevocable  redemption notice, if given, shall be given effect in
         applying the foregoing.

                  (2) No  Default  or  Event  of  Default  with  respect  to the
         Securities  shall have  occurred and be  continuing on the date of such
         deposit  or,  insofar  as  paragraphs  (8) and (9) of  Section  501 are
         concerned,  at any time during the period  ending on the 91st day after
         the date of such deposit (it being understood that this condition shall
         not be deemed satisfied until the expiration of such period).

                  (3) Such defeasance or covenant defeasance shall not result in
         a breach or violation of, or constitute a default under, this Indenture
         or any other material agreement or instrument to which the Company is a
         party or by which it is bound.

                  (4) In the case of an election under Section 1202, the Company
         shall have delivered to the Trustee an Opinion of Counsel stating that

                                                      4.1-68





         (x) the Company has received  from, or there has been published by, the
         Internal  Revenue Service a ruling,  or (y) since October 9, 1997 there
         has been a change in the  applicable  federal income tax law, in either
         case to the effect that,  and based  thereon such opinion shall confirm
         that,  the Holders of the  Outstanding  Securities  will not  recognize
         income,  gain or loss for  federal  income tax  purposes as a result of
         such  defeasance  and will be subject to federal income tax on the same
         amounts,  in the same  manner  and at the same times as would have been
         the case if such defeasance had not occurred.

                  (5) In the case of an election under Section 1203, the Company
         shall have delivered to the Trustee an Opinion of Counsel to the effect
         that the  Holders  of the  Outstanding  Securities  will not  recognize
         income,  gain or loss for  federal  income tax  purposes as a result of
         such covenant  defeasance  and will be subject to federal income tax on
         the same  amounts,  in the same  manner  and at the same times as would
         have been the case if such covenant defeasance had not occurred.

                  (6)  The  Company  shall  have  delivered  to the  Trustee  an
         Officers'  Certificate and an Opinion of Counsel, each stating that all
         conditions  precedent  provided for  relating to either the  defeasance
         under  Section 1202 or the covenant  defeasance  under Section 1203 (as
         the case may be) have been complied with.

                  SECTION 1205.  Deposited Money and Government Securities to Be
Held in Trust; Other Miscellaneous Provisions.

                  Subject to the  provisions  of the last  paragraph  of Section
1003,  all money and  Government  Securities  (including  the proceeds  thereof)
deposited  with the  Trustee  (or other  qualifying  trustee,  collectively  for
purposes of this  Section  1205,  the  "Trustee")  pursuant  to Section  1204 in
respect of the Outstanding  Securities shall be held in trust and applied by the
Trustee,  in  accordance  with  the  provisions  of  such  Securities  and  this
Indenture,  to  the  payment,  either  directly  or  through  any  Paying  Agent
(including  the  Company  acting as its own  Paying  Agent) as the  Trustee  may
determine,  to the Holders of such  Securities of all sums due and to become due
thereon in  respect  of  principal  or  Accreted  Value,  premium,  if any,  and
interest,  but such money need not be segregated  from other funds except to the
extent required by law.

                  The  Company  shall  pay and  indemnify  the  Trustee  and (if
applicable) its officers,  directors,  employees and agents against any tax, fee
or other  charge  imposed  on or  assessed  against  the  Government  Securities
deposited  pursuant to Section 1204 or the  principal  and interest  received in
respect thereof other than any such tax, fee or other charge which by law is for
the account of the Holders of the Outstanding Securities.

                  Anything   in   this   Article    Twelve   to   the   contrary
notwithstanding,  the Trustee  shall  deliver or pay to the Company from time to
time upon  Company  Request  any money or  Government  Securities  held by it as
provided in Section 1204 which,  in the opinion of a nationally  recognized firm
of independent public accountants  expressed in a written  certification thereof
delivered to the Trustee,  are in excess of the amount  thereof which would then
be required  to be  deposited  to effect an  equivalent  defeasance  or covenant
defeasance, as applicable, in accordance with this Article Twelve.

                  SECTION 1206.  Reinstatement.

                  If the  Trustee  or any  Paying  Agent is  unable to apply any
money in accordance  with Section 1205 by reason of any order or judgment of any
court or governmental authority enjoining,  restraining or otherwise prohibiting
such application, then the Company's obligations under this Indenture and the

                                                      4.1-69





Securities  shall be revived and  reinstated  as though no deposit had  occurred
pursuant  to Section  1202 or 1203,  as the case may be,  until such time as the
Trustee or Paying Agent is permitted to apply all such money in accordance  with
Section  1205;  provided,  however,  that if the  Company  makes any  payment of
principal  or Accreted  Value of,  premium,  if any, or interest on any Security
following the reinstatement of its obligations,  the Company shall be subrogated
to the rights of the Holders of such Securities to receive such payment from the
money held by the Trustee or Paying Agent.



                                                      4.1-70





                  IN WITNESS  WHEREOF,  the  parties  hereto  have  caused  this
Indenture  to be duly  executed,  and  their  respective  corporate  seals to be
hereunto affixed and attested, all as of the day and year first above written.


                     QWEST COMMUNICATIONS INTERNATIONAL INC.


                                                 By:/s/_________________________
                                                 Title:


Attest:/s/_________________________
Title:


                                            BANKERS TRUST COMPANY, as Trustee


                                                 By:/s/_________________________
                                                 Title:





                                                      4.1-71





                                                     EXHIBIT A

                                             Form of Face of Security

                  [If a Global Security, then insert:] THIS SECURITY IS A GLOBAL
SECURITY  WITHIN THE  MEANING OF THE  INDENTURE  HEREINAFTER  REFERRED TO AND IS
REGISTERED  IN THE  NAME OF A  DEPOSITORY  OR A  NOMINEE  OF A  DEPOSITORY  OR A
SUCCESSOR   DEPOSITORY.   THIS  SECURITY  IS  NOT  EXCHANGEABLE  FOR  SECURITIES
REGISTERED  IN THE NAME OF A PERSON  OTHER THAN THE  DEPOSITORY  OR ITS  NOMINEE
EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE,  AND NO TRANSFER
OF THIS  SECURITY  (OTHER  THAN A TRANSFER  OF THIS  SECURITY  AS A WHOLE BY THE
DEPOSITORY TO A NOMINEE OF THE  DEPOSITORY OR BY A NOMINEE OF THE  DEPOSITORY TO
THE DEPOSITORY OR ANOTHER NOMINEE OF THE DEPOSITORY) MAY BE REGISTERED EXCEPT IN
THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE.

                  [If a Global  Security,  then insert:] UNLESS THIS CERTIFICATE
IS PRESENTED BY AN AUTHORIZED  REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A
NEW YORK  CORPORATION  ("DTC"),  TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF
TRANSFER,  EXCHANGE, OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE
NAME OF CEDE & CO.  OR IN SUCH  OTHER  NAME  AS IS  REQUESTED  BY AN  AUTHORIZED
REPRESENTATIVE  OF DTC (AND ANY  PAYMENT  IS MADE TO CEDE & CO. OR TO SUCH OTHER
ENTITY AS IS REQUESTED BY AN AUTHORIZED  REPRESENTATIVE  OF DTC),  ANY TRANSFER,
PLEDGE  OR OTHER  USE  HEREOF  FOR  VALUE OR  OTHERWISE  BY OR TO ANY  PERSON IS
WRONGFUL  INASMUCH AS THE REGISTERED  OWNER HEREOF,  CEDE & CO., HAS AN INTEREST
HEREIN.

                  [If a Rule 144A Security,  then insert:] THIS SECURITY HAS NOT
BEEN REGISTERED UNDER THE UNITED STATES  SECURITIES ACT OF 1933, AS AMENDED (THE
"SECURITIES  ACT"),  AND  MAY  NOT  BE  OFFERED,   SOLD,  PLEDGED  OR  OTHERWISE
TRANSFERRED  EXCEPT (A)(1) TO A PERSON WHOM THE SELLER REASONABLY  BELIEVES IS A
QUALIFIED  INSTITUTIONAL  BUYER  WITHIN  THE  MEANING  OF RULE  144A  UNDER  THE
SECURITIES ACT ("RULE 144A") IN A TRANSACTION  MEETING THE  REQUIREMENTS OF RULE
144A, (2) IN AN OFFSHORE  TRANSACTION  MEETING THE  REQUIREMENTS  OF RULE 903 OR
RULE 904 OF  REGULATION  S UNDER  THE  SECURITIES  ACT,  OR (3)  PURSUANT  TO AN
EXEMPTION  FROM  REGISTRATION  UNDER THE  SECURITIES  ACT  PROVIDED BY RULE 144A
THEREUNDER (IF AVAILABLE) AND (B) IN ACCORDANCE  WITH ALL APPLICABLE  SECURITIES
LAWS OF THE STATES OF THE UNITED STATES.

                  [If a Regulation S Security,  then  insert:] THIS SECURITY HAS
NOT BEEN REGISTERED  UNDER THE UNITED STATES  SECURITIES ACT OF 1933, AS AMENDED
(THE  "SECURITIES  ACT"),  AND, PRIOR TO THE  EXPIRATION OF A RESTRICTED  PERIOD
(DEFINED AS 40 DAYS AFTER THE ISSUE DATE WITH  RESPECT TO THE  SECURITIES),  MAY
NOT BE:  OFFERED,  SOLD,  PLEDGED OR OTHERWISE  TRANSFERRED  EXCEPT (A)(1) IN AN
OFFSHORE  TRANSACTION IN ACCORDANCE WITH RULE 903 OR RULE 904 OF REGULATION S OR
(2) TO A PERSON WHOM THE SELLER REASONABLY BELIEVES IS A QUALIFIED INSTITUTIONAL
BUYER WITHIN THE MEANING OF RULE 144A UNDER THE  SECURITIES ACT ("RULE 144A") IN
A TRANSACTION  MEETING THE REQUIREMENTS OF RULE 144A, AND (B) IN ACCORDANCE WITH
ALL APPLICABLE SECURITIES LAWS OF THE STATES OF THE UNITED STATES.


                                               QWEST COMMUNICATIONS
                                                INTERNATIONAL INC.



                                                        A-1





                                 9.47% [Series B]1 Senior Discount Note Due 2007

                                                                 CUSIP: ________

No. __________                                                         $________


                  FOR PURPOSES OF SECTIONS  1272,  1273 AND 1275 OF THE INTERNAL
REVENUE CODE OF 1986, AS AMENDED, AND THE RULES AND REGULATIONS THEREUNDER, THIS
SECURITY  IS BEING  ISSUED  WITH  ORIGINAL  ISSUE  DISCOUNT;  FOR EACH $1,000 OF
PRINCIPAL  AMOUNT (1) THE "ISSUE PRICE" IS $629.62;  (2) THE "STATED  REDEMPTION
PRICE AT MATURITY" IS $1,473.50;  (3) THE AMOUNT OF ORIGINAL ISSUE DISCOUNT (THE
EXCESS OF THE "STATED  REDEMPTION  PRICE AT MATURITY" OVER THE "ISSUE PRICE") IS
$843.88;  (4) THE ISSUE  DATE IS OCTOBER  15,  1997;  (5) THE YIELD TO  MATURITY
(COMPOUNDED  SEMI-ANNUALLY) IS 9.47%; AND (6) THE METHOD USED TO DETERMINE YIELD
TO MATURITY IS THE EXACT METHOD.

                  Qwest   Communications    International   Inc.,   a   Delaware
corporation  (herein  called the  "Company",  which term  includes any successor
Person under the Indenture hereinafter referred to), for value received,  hereby
promises to pay to _________________ or registered assigns, the principal sum of
____________________   Dollars  [if  a  Global  Security,  then  insert:  (which
principal  amount may from time to time be  increased or decreased to such other
principal amounts which,  taken together with the principal amounts of all other
Outstanding Securities, shall not exceed $______________ in the aggregate at any
time, by adjustments made on the records of the Trustee hereinafter  referred to
in accordance  with the Indenture)] on October 15, 2007, at the office or agency
of the Company referred to below, and to pay interest thereon,  semi-annually on
April 15 and October 15 in each year,  commencing  on April 15,  2003,  accruing
from  October 15, 2002 or from the most recent  Interest  Payment  Date to which
interest has been paid or duly provided for; provided, however, that the Company
may elect,  upon not less than 60 days' prior notice, to commence the accrual of
cash interest on all outstanding  Securities on any April 15 or October 15 on or
after  October  15,  2000 and  prior to  October  15,  2002,  in which  case the
outstanding  principal  amount  at  maturity  of  each  Security  will  on  such
commencement  date be reduced to the Accreted  Value of this Security as of such
date and cash  interest  shall be payable with respect to this  Security on each
April 15 and  October  15  thereafter.  Except as  otherwise  described  in this
paragraph,  interest  on the  Securities  will  accrue  at the rate of 9.47% per
annum,  until the principal  amount at maturity  hereof is paid or duly provided
for,  and (to the  extent  lawful)  to pay on  demand  interest  on any  overdue
interest at the rate borne by the Securities from the date on which such overdue
interest  becomes  payable to the date payment of such interest has been made or
duly provided for  [provided,  however,  that if (i) (a) Company has not filed a
registration  statement (the "Registration  Statement") under the Securities Act
of 1933,  as amended (the  "Securities  Act")  within 90 days after  October 15,
1997, with respect to a registered offer (the "Exchange Offer") to exchange this
Security for a security (an  "Exchange  Security")  with terms  identical in all
material  respects to this Security  (except that such security will not contain
terms  with  respect  to  registration  rights  or  transfer  restrictions,  and
provisions  regarding interest and Liquidated Interest (described below) will be
modified or eliminated,  as appropriate),  or (b) the Registration Statement has
not been declared  effective  within 150 days after October 15, 1997, or (c) the
Exchange Offer has not been consummated  within 180 days after October 15, 1997;
or (ii)
- --------
1        Include only for Exchange Securities.


                                                        A-2





in lieu thereof,  the Company has not filed a shelf registration  statement (the
"Shelf  Registration  Statement") under the Securities Act within 210 days after
October 15, 1997,  covering resales of this Security and such Shelf Registration
Statement  has not been  declared  effective;  or (iii) either the  Registration
Statement  or, if  applicable,  the Shelf  Registration  Statement  is filed and
declared effective but shall thereafter cease to be effective or usable (subject
to certain  exceptions) in connection  with resales of this Security or Exchange
Securities  in  accordance  with  and  during  the  periods   specified  in  the
Registration  Agreement  without  being  succeeded  promptly  by  an  additional
registration  statement filed and declared  effective,  in each case (i) through
(iii)  upon the terms and  conditions  set forth in the  Registration  Agreement
(each such event  referred  to in clauses  (i) through  (iii),  a  "Registration
Default"),  then  additional  interest  ("Liquidated  Interest") will accrue (in
addition  to  the  accretion  of  principal  and  any  stated  interest  on  the
Securities) from and including the date on which any such  Registration  Default
shall occur to but  excluding the date on which all  Registration  Defaults have
been  cured.  Liquidated  Interest  will be payable at a rate per annum equal to
0.5% on the  principal  amount at maturity of the  Securities  during the 90-day
period  immediately  following the  occurrence of any  Registration  Default and
shall  increase  by 0.25% per annum of the  principal  amount at maturity of the
Securities at the end of each  subsequent  90-day period,  but in no event shall
such rates exceed 2.00% per annum in the  aggregate  regardless of the number of
Registration  Defaults.  Accrued Liquidated  Interest,  if any, shall be paid in
cash  semiannually  on April 15 and  October 15 in each year;  and the amount of
accrued  Liquidated  Interest  shall be determined on the basis of the number of
days actually  elapsed.  Any accrued and unpaid interest  (including  Liquidated
Interest) on this Security upon the issuance of an Exchange Security in exchange
for this  Security  shall  cease to be  payable  to the  Holder  hereof but such
accrued and unpaid interest (including  Liquidated Interest) shall be payable on
the next Interest Payment Date for such Exchange  Security to the Holder thereof
on the related Regular Record Date.]2

                  The interest so payable,  and punctually paid or duly provided
for, on any Interest  Payment Date will, as provided in such Indenture,  be paid
to  the  Person  in  whose  name  this  Security  (or  one or  more  Predecessor
Securities)  is registered  at the close of business on the Regular  Record Date
for such  interest,  which  shall be the April 1 or October 1 (whether  or not a
Business Day), as the case may be, next  preceding  such Interest  Payment Date.
Any such  interest not so punctually  paid or duly provided for shall  forthwith
cease  to be  payable  to the  Holder  on such  Regular  Record  Date,  and such
defaulted  interest,  and (to the  extent  lawful)  interest  on such  defaulted
interest at the rate borne by the Securities, may be paid to the Person in whose
name this Security (or one or more Predecessor  Securities) is registered at the
close of  business on a Special  Record  Date for the payment of such  Defaulted
Interest to be fixed by the Trustee, notice whereof shall be given to Holders of
Securities  not less than 10 days prior to such Special  Record Date,  or may be
paid at any time in any other lawful manner,  all as more fully provided in said
Indenture. Payment of the principal of (and premium, if any, on) and interest on
this Security will be made at the office or agency of the Company maintained for
that  purpose in The City of New York,  or at such other office or agency of the
Company as may be maintained  for such purpose,  in such coin or currency of the
United States of America as at the time of payment is legal
- --------
2      Include for Initial Securities and, if there has occurred a Registration 
       Default, include for Exchange Securities.


                                                        A-3





tender for payment of public and private debts; provided,  however, that payment
of  interest  may be made at the option of the  Company  by check  mailed to the
address  of the Person  entitled  thereto as such  address  shall  appear on the
Security Register.

                  Reference  is hereby  made to the further  provisions  of this
Security set forth on the reverse hereof, which further provisions shall for all
purposes have the same effect as if set forth at this place.

                  Unless the certificate of authentication  hereon has been duly
executed by the Trustee  referred to on the reverse hereof by manual  signature,
this Security  shall not be entitled to any benefit under the  Indenture,  or be
valid or obligatory for any purpose.

                  IN WITNESS WHEREOF,  the Company has caused this instrument to
be duly executed under its corporate seal.

Dated:                                                      QWEST COMMUNICATIONS
                                                            INTERNATIONAL INC.


                                                            By:

                                                            Authorized Signatory




                                                        A-4





                                            Form of Reverse of Security

                  This Security is one of a duly authorized  issue of securities
of the Company  designated  as its 9.47% [Series B]1 Senior  Discount  Notes Due
2007 (herein called the "Securities"),  limited (except as otherwise provided in
the Indenture referred to below) in aggregate  principal amount to $555,890,000,
which may be issued under an indenture (herein called the "Indenture")  dated as
of October 15, 1997  between the  Company  and Bankers  Trust  Company,  trustee
(herein  called the "Trustee",  which term includes any successor  trustee under
the  Indenture),  to which  Indenture and all  indentures  supplemental  thereto
reference is hereby made for a statement of the respective  rights,  limitations
of rights,  duties,  obligations and immunities  thereunder of the Company,  the
Trustee  and the  Holders  of the  Securities,  and of the terms  upon which the
Securities are, and are to be, authenticated and delivered.

                  The  Securities are subject to redemption at the option of the
Company,  in  whole or in  part,  at any  time or from  time to time on or after
October 15, 2002, upon not less than 30 nor more than 60 days' prior notice,  at
the redemption  prices  (expressed as percentages of principal amount) set forth
below, plus accrued and unpaid interest thereon (if any) to the redemption date,
if redeemed during the twelve months beginning October 15 of the years indicated
below:


Year                                                            Redemption Price
- ----                                                            ----------------
2002......................................................              104.735%
2003......................................................              103.157%
2004......................................................              101.578%
2005 and thereafter.......................................              100.000%

                  In addition, prior to October 15, 2000, the Company may redeem
up to 35% of the Accreted Value of the Securities at a redemption price equal to
109.47% of the Accreted  Value of the  Securities so redeemed,  plus accrued and
unpaid interest  thereon (if any) to the redemption  date, with the net proceeds
of one or more Public Equity  Offerings  resulting in gross proceeds of at least
$100 million in the aggregate;  provided that at least 65% of the Accreted Value
of the Securities would remain  outstanding  immediately  after giving effect to
such redemption.

                  Upon the occurrence of a Change of Control, the Holder of this
Security may require the Company, subject to certain limitations provided in the
Indenture,  to repurchase this Security at a purchase price in cash in an amount
equal to 101% of the Accreted  Value of this  Security on the purchase date plus
any accrued and unpaid interest and premium,  if any, not otherwise  included in
the Accreted Value to such purchase date.

                  In  the  case  of  any  redemption  of  Securities,   interest
installments whose Stated Maturity is on or prior to the Redemption Date will be
payable  to  the  Holders  of  such  Securities,  or  one  or  more  Predecessor
Securities,  of record at the close of  business  on the  relevant  Record  Date
referred to on the face  hereof.  Securities  (or  portions  thereof)  for whose
redemption and payment  provision is made in accordance with the Indenture shall
cease to bear interest from and after the Redemption Date.

- --------
1        Include for Exchange Securities only.


                                                        A-5





                  In the event of  redemption  of this  Security in part only, a
new Security or Securities for the unredeemed  portion hereof shall be issued in
the name of the Holder hereof upon the cancellation hereof.

                  If an Event of  Default  shall  occur and be  continuing,  the
principal  amount at maturity  of all the  Securities  may be  declared  due and
payable in the manner and with the effect  provided in the  Indenture  and in an
amount equal to the Accreted Value of the Securities as of the date on which the
Securities  first become due and payable,  plus any accrued and unpaid  interest
and premium, if any, not otherwise included in the Accreted Value to such date.

                  The Indenture  contains  provisions for defeasance at any time
of (a) the entire  indebtedness  of the Company on this Security and (b) certain
restrictive  covenants  and the related  Defaults  and Events of  Default,  upon
compliance  by the Company  with certain  conditions  set forth  therein,  which
provisions apply to this Security.

                  The  Indenture  permits,  with certain  exceptions  as therein
provided,  the  amendment  thereof  and  the  modification  of  the  rights  and
obligations  of the Company and the rights of the Holders under the Indenture at
any time by the  Company  and the  Trustee  with the consent of the Holders of a
majority in aggregate principal amount at maturity of the Securities at the time
Outstanding.  The Indenture also contains  provisions  permitting the Holders of
specified   percentages  in  aggregate  principal  amount  at  maturity  of  the
Securities  at the  time  Outstanding,  on  behalf  of the  Holders  of all  the
Securities,  to waive  compliance by the Company with certain  provisions of the
Indenture and certain past defaults under the Indenture and their  consequences.
Any such consent or waiver by or on behalf of the Holder of this Security  shall
be conclusive  and binding upon such Holder and upon all future  Holders of this
Security and of any Security issued upon the  registration of transfer hereof or
in exchange herefor or in lieu hereof whether or not notation of such consent or
waiver is made upon this Security.

                  No reference  herein to the Indenture and no provision of this
Security  or of the  Indenture  shall  alter or  impair  the  obligation  of the
Company,  which is absolute and unconditional,  to pay the principal or Accreted
Value of (and  premium,  if any) and  interest  on this  Security  at the times,
place, and rate, and in the coin or currency, herein prescribed.

                  As   provided  in  the   Indenture   and  subject  to  certain
limitations  therein set forth, the transfer of this Security is registerable on
the  Security  Register of the  Company,  upon  surrender  of this  Security for
registration  of transfer at the office or agency of the Company  maintained for
such  purpose in The City of New York,  duly  endorsed by, or  accompanied  by a
written  instrument  of  transfer  in form  satisfactory  to the Company and the
Security  Registrar  duly  executed by, the Holder  hereof or his attorney  duly
authorized in writing,  and thereupon one or more new Securities,  of authorized
denominations and for the same aggregate principal amount, will be issued to the
designated transferee or transferees.

                  The  Securities  are issuable only in registered  form without
coupons  in  denominations  of $1,000  and any  integral  multiple  thereof.  As
provided in the Indenture and subject to certain  limitations therein set forth,
the  Securities  are  exchangeable  for a like  aggregate  principal  amount  of
Securities of a different  authorized  denomination,  as requested by the Holder
surrendering the same.



                                                        A-6





                  No  service  charge  shall  be made  for any  registration  of
transfer or exchange of Securities, but the Company may require payment of a sum
sufficient to cover any tax or other  governmental  charge payable in connection
therewith.

                  Prior  to the time of due  presentment  of this  Security  for
registration of transfer,  the Company, the Trustee and any agent of the Company
or the Trustee may treat the Person in whose name this Security is registered as
the owner hereof for all purposes,  whether or not this Security be overdue, and
neither  the  Company,  the Trustee nor any agent shall be affected by notice to
the contrary.

                  All  terms  used in this  Security  which are  defined  in the
Indenture shall have the meanings assigned to them in the Indenture.




                                                        A-7





                                 Form of Trustee's Certificate of Authentication

                  The  Trustee's  certificate  of  authentication  shall  be  in
substantially the following form:

                                      TRUSTEE'S CERTIFICATE OF AUTHENTICATION


                  Dated:  ____________________

                  This   is   one  of  the   Securities   referred   to  in  the
within-mentioned Indenture.

                                                              [NAME OF TRUSTEE]
                                   as Trustee


                                                    By:_________________________
                                                         Authorized Signatory




                                                        A-8





                                                  Assignment Form

                  If you, the holder, want to assign this Security,  fill in the
form below and have your signature guaranteed:

I or we assign and transfer this Security to
- -----------------------------------



(Insert assignee's social security or tax ID number)

(Print or type assignee's name, address and zip code)



and irrevocably appoint ________________________________
of       ________________________________
         --------------------------------

agent to transfer this Security on the books of the Company.  The agent may
substitute another to act for such agent.

                  In  connection  with any transfer of this  Security  occurring
prior to the date which is the earlier of (i) the date of the declaration by the
Commission of the effectiveness of a registration statement under the Securities
Act of 1933,  as  amended  (the  "Securities  Act"),  covering  resales  of this
Security (which effectiveness shall not have been suspended or terminated at the
date of the  transfer)  and (ii) the date two years (or such  shorter  period of
time  as may be  permitted  by  Rule  144(k)  under  the  Securities  Act or any
successor  provision  thereunder)  after the later of the original issuance date
appearing on the face of this Security (or any Predecessor Security) or the last
date on which the Company or any  Affiliate of the Company was the owner of this
Security (or any Predecessor Security), the undersigned confirms that it has not
utilized any general  solicitation or general advertising in connection with the
transfer and that this  Security is being  transferred  in  compliance  with the
exemption  from  registration  under the  Securities  Act  provided by Rule 144A
thereunder.



                                                        A-9





If the above is not  correct,  the  Trustee or Security  Registrar  shall not be
obligated  to register  this  Security in the name of any person  other than the
Holder  hereof  unless  and  until  the  conditions  to  any  such  transfer  or
registration  set forth  herein and in Section 313 of the  Indenture  shall have
been satisfied.



Dated:_________________                              Your signature:
                 (Sign exactly as your name appears on the other
                             side of this Security)

                                            By:
                 NOTICE: To be executed by an executive officer


Signature Guarantee:__________________________


                  TO BE COMPLETED BY PURCHASER:

                  The undersigned  represents and warrants that it is purchasing
this  Security  for its own  account  or an  account  with  respect  to which it
exercises  sole  investment  discretion  and that it and any such  account  is a
"qualified  institutional  buyer"  within  the  meaning  of Rule 144A  under the
Securities  Act and is aware  that the sale to it is being made in  reliance  on
Rule 144A and acknowledges  that it has received such information  regarding the
Company as the  undersigned  has requested  pursuant to Rule 144A (including the
information  specified in Rule 144A(d)(4)) or has determined not to request such
information  and  that it is aware  that  the  transferor  is  relying  upon the
undersigned's  foregoing  representations  in order to claim the exemption  from
registration provided by Rule 144A.


Dated:__________________________
                                         NOTICE:  To be executed by an executive
                                                  officer

[The Transferee Certificates (Exhibit B to the Indenture) will be attached to
the Security]



                                                       A-10





                                        Option of Holder to Elect Purchase

                  If you wish to have this Security purchased by the Company
pursuant to Section 1010 or 1018 of the Indenture, check the box:  |_|

                  If you wish to have a portion of this  Security  purchased  by
the Company pursuant to Section 1010 or 1018 of the Indenture, state the amount:
$-------------

Dated:______________________                                  Your Signature:

                                              (Sign exactly as your name appears
                                              n the other side of this Security)


                                                       A-11





                                                     EXHIBIT B

                                        Form of Certificate to Be Delivered
                                           in Connection with Transfers
                                             Pursuant to Regulation S

                                                                          [Date]

Bankers Trust Company
Four Albany Street
New York, NY  10006

Attention:  Corporate Market Services

         Re:      Qwest Communications International Inc. (the "Company") 9.47%
                  Senior Discount Notes Due 2007 (the "Securities")

Dear Sirs:

                  In connection with our proposed sale of $ aggregate  principal
amount of the Securities,  we confirm that such sale has been effected  pursuant
to and in accordance with Regulation S under the U.S. Securities Act of 1933, as
amended (the "Securities Act"), and, accordingly, we represent that:

                  (1)the offer of the Securities was not made to a person in the
         United States;

                  (2) either (a) at the time the buy offer was  originated,  the
         transferee was outside the United States or we and any person acting on
         our behalf  reasonably  believed  that the  transferee  was outside the
         United States,  or (b) the  transaction  was executed in, on or through
         the facilities of a designated  off-shore securities market and neither
         we nor any person acting on our behalf knows that the  transaction  has
         been pre-arranged with a buyer in the United States;

                  (3) no directed  selling  efforts have been made in the United
         States in  contravention  of the  requirements  of Rule  903(b) or Rule
         904(b) of Regulation S, as applicable;

                 (4)the transaction is not part of a plan or scheme to evade the
         registration requirements of the Securities Act;

                  (5)we have advised the transferee of the transfer restrictions
         applicable to the Securities; and

                  (6) if the  circumstances  set forth in Rule 904(c)  under the
         Securities  Act are  applicable,  we have complied with the  additional
         conditions therein, including (if applicable) sending a confirmation or
         other  notice  stating  that the  Securities  may be offered  and sold:
         during the  restricted  period  specified in Rule  903(c)(2) or (3), as
         applicable; in accordance with the provisions of Regulation S; pursuant
         to registration of the Securities under the Securities Act; or pursuant
         to an available exemption from the registration  requirements under the
         Securities Act.

                  You and the Company are  entitled to rely upon this letter and
are irrevocably authorized to produce this letter or a copy hereof to any


                                                        B-1





interested party in any  administrative or legal proceedings or official inquiry
with respect to the matters covered hereby.  Terms used in this certificate have
the meanings set forth in Regulation S.

                                                     Very truly yours,

                                                     [Name of Transferor]

                                                     By:
                                                           Authorized Signatory


                                                        B-2












                                     QWEST COMMUNICATIONS INTERNATIONAL INC.,

                                                      Issuer

                                                        to

                                              BANKERS TRUST COMPANY,

                                                      Trustee



                                               --------------------



                                                     Indenture


                                           Dated as of October 15, 1997


                                               ---------------------



                                     $555,890,000 Principal Amount at Maturity


                                       9.47% Senior Discount Notes Due 2007











                                                        B-3




                                                         i


                                                                               

                                                TABLE OF CONTENTS



                                                                                                            
                                                                                                               Page

PARTIES.........................................................................................................  1
RECITALS OF THE COMPANY.........................................................................................  1


                                                    ARTICLE ONE

                                         DEFINITIONS AND OTHER PROVISIONS
                                              OF GENERAL APPLICATION

         SECTION 101.  Definitions..............................................................................  1
                  Accreted Value................................................................................  2
                  Acquired Debt.................................................................................  2
                  Act      .....................................................................................  2
                  Affiliate.....................................................................................  3
                  Agent Member..................................................................................  3
                  Asset Disposition.............................................................................  3
                  Attributable Value............................................................................  3
                  Board of Directors............................................................................  4
                  Board Resolution..............................................................................  4
                  Business Day..................................................................................  4
                  Capital Lease Obligation......................................................................  4
                  Capital Stock.................................................................................  4
                  Cash Equivalents..............................................................................  4
                  Change of Control.............................................................................  5
                  Commission....................................................................................  5
                  Common Stock..................................................................................  5
                  Company  .....................................................................................  5
                  Company Order.................................................................................  5
                  Company Request...............................................................................  5
                  Consolidated Capital Ratio....................................................................  5
                  Consolidated Cash Flow Available for Fixed Charges............................................  5
                  Consolidated Income Tax Expense...............................................................  6
                  Consolidated Interest Expense.................................................................  6
                  Consolidated Net Income.......................................................................  6
                  Consolidated Net Worth........................................................................  7
                  Consolidated Tangible Assets..................................................................  7
                  Continuing Director...........................................................................  7
                  Corporate Trust Office........................................................................  7
                  Corporation...................................................................................  7
                  Credit Facilities.............................................................................  7
                  Debt     .....................................................................................  8
                  Debt Securities...............................................................................  8
                  Default  .....................................................................................  8
                  Defaulted Interest............................................................................  8
                  Depository....................................................................................  8
                  Designation...................................................................................  9
                  Designation Amount............................................................................  9
                  Disqualified Stock............................................................................  9
                  Eligible Institution..........................................................................  9
                  Eligible Receivables..........................................................................  9
                  Event of Default..............................................................................  9
                  Exchange Act..................................................................................  9
- --------
Note:    This table of contents shall not, for any purpose, be deemed to be a part of the Indenture.





                                                        ii


                                                                                                               Page

                  Exchange Offer................................................................................  9
                  Exchange Offer Registration Statement.........................................................  9
                  Exchange Securities........................................................................... 10
                  Expiration Date............................................................................... 10
                  Fair Market Value............................................................................. 10
                  Federal Bankruptcy Code....................................................................... 10
                  Global Security............................................................................... 10
                  Government Securities......................................................................... 10
                  Group    ..................................................................................... 10
                  Guarantee..................................................................................... 10
                  Guarantor..................................................................................... 10
                  Holder   ..................................................................................... 11
                  Incur    ..................................................................................... 11
                  Indenture..................................................................................... 11
                  Indenture Obligations......................................................................... 11
                  Initial Purchasers............................................................................ 11
                  Initial Securities............................................................................ 11
                  Interest Payment Date......................................................................... 11
                  Interest Rate or Currency Protection Agreement................................................ 11
                  Investment.................................................................................... 11
                  Lien     ..................................................................................... 12
                  Liquidated Interest........................................................................... 12
                  Maturity ..................................................................................... 12
                  Net Available Proceeds........................................................................ 12

                  Notice of Default............................................................................. 13
                  Offer    ..................................................................................... 13
                  Offer to Purchase............................................................................. 13
                  Offering Memorandum........................................................................... 15
                  Officers' Certificate......................................................................... 15
                  Opinion of Counsel............................................................................ 15
                  Outstanding................................................................................... 15
                  Paying Agent.................................................................................. 16
                  Permitted Holders............................................................................. 16
                  Permitted Interest Rate or Currency Protection Agreement...................................... 16
                  Permitted Investments......................................................................... 17
                  Permitted Joint Venture....................................................................... 17
                  Permitted Liens............................................................................... 17
                  Permitted Telecommunications Capital Asset Disposition........................................ 18
                  Person   ..................................................................................... 18
                  Physical Security............................................................................. 18
                  Predecessor Security.......................................................................... 18
                  Preferred Dividends........................................................................... 18
                  Preferred Stock............................................................................... 18
                  Private Placement Legend...................................................................... 18
                  Public Equity Offering........................................................................ 19
                  Purchase Amount............................................................................... 19
                  Purchase Date................................................................................. 19
                  Purchase Money Debt........................................................................... 19
                  Purchase Price................................................................................ 19
                  Qualified Institutional Buyer................................................................. 19
                  QIB      ..................................................................................... 19
                  Rating Decline................................................................................ 19
                  Receivables................................................................................... 19
                  Receivables Sale.............................................................................. 19
                  Redemption Date............................................................................... 19





                                                        iii


                                                                                                               Page

                  Redemption Price.............................................................................. 19
                  Registration Agreement........................................................................ 19
                  Registration Statement........................................................................ 20
                  Regular Record Date........................................................................... 20
                  Regulation S.................................................................................. 20
                  Regulation S Global Security.................................................................. 20
                  Related Person................................................................................ 20
                  Responsible Officer........................................................................... 20
                  Restricted Payment............................................................................ 20
                  Restricted Subsidiary......................................................................... 20
                  Restricted Subsidiary Guarantee............................................................... 20
                  Revocation.................................................................................... 20
                  Rule 144A..................................................................................... 20
                  Rule 144A Global Security..................................................................... 21
                  Sale and Leaseback Transaction................................................................ 21
                  Securities.................................................................................... 21
                  Securities Act................................................................................ 21
                  Security Register............................................................................. 21
                  Security Registrar............................................................................ 21
                  Senior Notes.................................................................................. 21
                  Shelf Registration Statement.................................................................. 21
                  Special Record Date........................................................................... 21
                  Stated Maturity............................................................................... 21
                  Strategic Investor............................................................................ 22
                  Subordinated Debt............................................................................. 22
                  Subsidiary.................................................................................... 22
                  Telecommunications Assets..................................................................... 23
                  Telecommunications Business................................................................... 23
                  Trust Indenture Act........................................................................... 23
                  TIA      ..................................................................................... 23
                  Trustee  ..................................................................................... 23
                  Unrestricted Subsidiary....................................................................... 23
                  Vice President................................................................................ 23
                  Voting Stock.................................................................................. 23
                  Wholly Owned Subsidiary....................................................................... 23
         SECTION 102.  Compliance Certificates and Opinions..................................................... 23
         SECTION 103.  Form of Documents Delivered to Trustee................................................... 24
         SECTION 104.  Acts of Holders.......................................................................... 25
         SECTION 105.  Notices, Etc., to Trustee and Company.................................................... 26
         SECTION 106.  Notice to Holders; Waiver................................................................ 26
         SECTION 107.  Effect of Headings and Table of Contents................................................. 27
         SECTION 108.  Successors and Assigns................................................................... 27
         SECTION 109.  Separability Clause...................................................................... 27
         SECTION 110.  Benefits of Indenture.................................................................... 27
         SECTION 111.  Governing Law............................................................................ 28
         SECTION 112.  Conflict with Trust Indenture Act........................................................ 28
         SECTION 113.  Legal Holidays........................................................................... 28
         SECTION 114.  No Personal Liability of Directors, Officers,
                  Employees and
                                Stockholders.................................................................... 28
         SECTION 115.  Independence of Covenants................................................................ 29
         SECTION 116.  Exhibits................................................................................. 29
         SECTION 117.  Counterparts............................................................................. 29
         SECTION 118.  Duplicate Originals...................................................................... 29

                                                    ARTICLE TWO





                                                        iv


                                                                                                               Page

                                                  SECURITY FORMS

         SECTION 201.  Forms Generally.......................................................................... 29

                                                   ARTICLE THREE

                                                  THE SECURITIES

         SECTION 301.  Title and Terms.......................................................................... 30
         SECTION 302.  Denominations............................................................................ 31
         SECTION 303.  Execution, Authentication, Delivery and Dating........................................... 31
         SECTION 304.  Temporary Securities..................................................................... 33
         SECTION 305.  Registration, Registration of Transfer and Exchange...................................... 33
         SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities......................................... 35
         SECTION 307.  Payment of Interest; Interest Rights Preserved........................................... 35
         SECTION 308.  Persons Deemed Owners.................................................................... 37
         SECTION 309.  Cancellation............................................................................. 37
         SECTION 310.  Computation of Interest.................................................................. 37
         SECTION 311.  CUSIP Number............................................................................. 38
         SECTION 312.  Book-Entry Provisions for Global Securities.............................................. 38
         SECTION 313.  Special Transfer Provisions.............................................................. 39

                                                   ARTICLE FOUR

                                            SATISFACTION AND DISCHARGE

         SECTION 401.  Satisfaction and Discharge of Indenture.................................................. 41
         SECTION 402.  Application of Trust Money............................................................... 42

                                                   ARTICLE FIVE

                                                     REMEDIES

         SECTION 501.  Events of Default........................................................................ 42
         SECTION 502.  Acceleration of Maturity; Rescission and Annulment....................................... 44
         SECTION 503.  Collection of Indebtedness and Suits for Enforcement
                  by
                                Trustee......................................................................... 45
         SECTION 504.  Trustee May File Proofs of Claim......................................................... 46
         SECTION 505.  Trustee May Enforce Claims Without Possession of
                  Securities.................................................................................... 47
         SECTION 506.  Application of Money Collected........................................................... 47
         SECTION 507.  Limitation on Suits...................................................................... 48
         SECTION 508.  Unconditional Right of Holders to Receive Principal,
                                Premium and Interest............................................................ 48
         SECTION 509.  Restoration of Rights and Remedies....................................................... 49
         SECTION 510.  Rights and Remedies Cumulative........................................................... 49
         SECTION 511.  Delay or Omission Not Waiver............................................................. 49
         SECTION 512.  Control by Holders....................................................................... 49
         SECTION 513.  Waiver of Past Defaults.................................................................. 50
         SECTION 514.  Waiver of Stay or Extension Laws......................................................... 50

                                                    ARTICLE SIX

                                                    THE TRUSTEE






                                                         v


                                                                                                               Page

         SECTION 601.  Certain Duties and Responsibilities...................................................... 50
         SECTION 602.  Notice of Default........................................................................ 52
         SECTION 603.  Certain Rights of Trustee................................................................ 52
         SECTION 604.  Trustee Not Responsible for Recitals or Issuance of
                  Securities.................................................................................... 53
         SECTION 605.  May Hold Securities...................................................................... 54
         SECTION 606.  Money Held in Trust...................................................................... 54
         SECTION 607.  Compensation and Reimbursement........................................................... 54
         SECTION 608.  Corporate Trustee Required; Eligibility; Conflicting
                  Interests..................................................................................... 55
         SECTION 609.  Resignation and Removal; Appointment of Successor........................................ 55
         SECTION 610.  Acceptance of Appointment by Successor................................................... 57
         SECTION 611.  Merger, Conversion, Consolidation or Succession to
                  Business...................................................................................... 57

                                                   ARTICLE SEVEN

                                 HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY

         SECTION 701.  Disclosure of Names and Addresses of Holders............................................. 58
         SECTION 702.  Reports by Trustee....................................................................... 58
         SECTION 703.  Reports by Company....................................................................... 58

                                                   ARTICLE EIGHT

                               CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

         SECTION 801.  Company May Consolidate, Etc., Only on Certain Terms
                   ............................................................................................. 58
         SECTION 802.  Successor Substituted.................................................................... 60

                                                   ARTICLE NINE

                                              SUPPLEMENTAL INDENTURES

         SECTION 901.  Supplemental Indentures Without Consent of Holders....................................... 60
         SECTION 902.  Supplemental Indentures with Consent of Holders.......................................... 61
         SECTION 903.  Execution of Supplemental Indentures..................................................... 62
         SECTION 904.  Effect of Supplemental Indentures........................................................ 62
         SECTION 905.  Conformity with Trust Indenture Act...................................................... 62
         SECTION 906.  Reference in Securities to Supplemental Indentures....................................... 62
         SECTION 907.  Notice of Supplemental Indentures........................................................ 62

                                                    ARTICLE TEN

                                                     COVENANTS

         SECTION 1001.  Payment of Principal, Premium, if Any, and Interest
                   ............................................................................................. 63
         SECTION 1002.  Maintenance of Office or Agency......................................................... 63
         SECTION 1003.  Money for Security Payments to Be Held in Trust......................................... 63
         SECTION 1004.  Corporate Existence..................................................................... 65
         SECTION 1005.  Payment of Taxes and Other Claims....................................................... 65
         SECTION 1006.  Maintenance of Properties............................................................... 65
         SECTION 1007.  Insurance............................................................................... 66
         SECTION 1008.  Provision of Financial Statements....................................................... 66





                                                        vi


                                                                                                               Page

         SECTION 1009.  Statement by Officers as to Default..................................................... 66
         SECTION 1010.  Purchase of Securities upon Change of Control........................................... 67
         SECTION 1011.  Limitation on Consolidated Debt......................................................... 68
         SECTION 1012.  Limitation on Debt and Preferred Stock of
                  Restricted
                                Subsidiaries.................................................................... 70
         SECTION 1013.  Limitation on Restricted Payments....................................................... 72
         SECTION 1014.  Limitation on Dividend and Other Payment
                  Restrictions
                                 Affecting Restricted Subsidiaries.............................................. 74
         SECTION 1015.  Limitation on Liens..................................................................... 75
         SECTION 1016.  Limitation on Issuances of Certain Guarantees by,
                  and Debt
                                Securities of, Restricted Subsidiaries.......................................... 76
         SECTION 1017.  Limitation on Sale and Leaseback Transactions........................................... 76
         SECTION 1018.  Limitation on Asset Dispositions........................................................ 76
         SECTION 1019.  Limitation on Issuances and Sales of Capital Stock
                  of
                                Restricted Subsidiaries......................................................... 77
         SECTION 1020.  Transactions with Affiliates and Related Persons........................................ 78
         SECTION 1021.  Limitation on Designations of Unrestricted
                  Subsidiaries.................................................................................. 78
         SECTION 1022.  No Repayment of Existing Parent Company Advances
                  with
                                the Proceeds of the Securities.................................................. 79
         SECTION 1023.  Waiver of Certain Covenants............................................................. 80
         SECTION 1024.  Trustee Not to Monitor Performance...................................................... 80

                                                  ARTICLE ELEVEN

                                             REDEMPTION OF SECURITIES

         SECTION 1101.  Right of Redemption..................................................................... 80
         SECTION 1102.  Applicability of Article................................................................ 80
         SECTION 1103.  Election to Redeem; Notice to Trustee................................................... 80
         SECTION 1104.  Selection by Trustee of Securities to Be Redeemed....................................... 81
         SECTION 1105.  Notice of Redemption.................................................................... 81
         SECTION 1106.  Deposit of Redemption Price............................................................. 82
         SECTION 1107.  Securities Payable on Redemption Date................................................... 82
         SECTION 1108.  Securities Redeemed in Part............................................................. 83

                                                  ARTICLE TWELVE

                                        DEFEASANCE AND COVENANT DEFEASANCE

         SECTION 1201.  Company's Option to Effect Defeasance or Covenant
                                Defeasance...................................................................... 83
         SECTION 1202.  Defeasance and Discharge................................................................ 83
         SECTION 1203.  Covenant Defeasance..................................................................... 84
         SECTION 1204.  Conditions to Defeasance or Covenant Defeasance......................................... 84
         SECTION 1205.  Deposited Money and Government Securities to Be
                  Held in
                                Trust; Other Miscellaneous Provisions........................................... 86
         SECTION 1206.  Reinstatement........................................................................... 86






                                                        vii


                                                                                                               Page

TESTIMONIUM..................................................................................................... 87
SIGNATURES AND SEALS............................................................................................ 87


EXHIBIT A -        Form of Security

EXHIBIT B -        Form of Certificate to Be Delivered in Connection with 
                   Transfers Pursuant to Regulation S




                                                       4.2-1