_______________________________________

                  FIRST SUPPLEMENTAL INDENTURE

                 Dated as of November 18, 1997


                            Between


                TELEPHONE AND DATA SYSTEMS, INC.

                              and

               THE FIRST NATIONAL BANK OF CHICAGO

            _______________________________________






                          ARTICLE I     

                         DEFINITIONS

          SECTION 1.1.  DEFINITION OF TERMS . . . . . . . . . . . . . . 2
          SECTION 1.2.  INTERPRETATION. . . . . . . . . . . . . . . . . 3

                          ARTICLE II 

                GENERAL TERMS AND CONDITIONS OF   
                  THE SUBORDINATED DEBENTURES

          SECTION 2.1.  DESIGNATION AND PRINCIPAL AMOUNT. . . . . . . . 4
          SECTION 2.2.  MATURITY. . . . . . . . . . . . . . . . . . . . 4
          SECTION 2.3.  FORM AND PAYMENT. . . . . . . . . . . . . . . . 4
          SECTION 2.4.  GLOBAL SUBORDINATED DEBENTURE . . . . . . . . . 5
          SECTION 2.5.  INTEREST. . . . . . . . . . . . . . . . . . . . 6

                         ARTICLE III
            
           REDEMPTION OF THE SUBORDINATED DEBENTURES

          SECTION 3.1.  TAX EVENT REDEMPTION. . . . . . . . . . . . . . 7
          SECTION 3.2.  OPTIONAL REDEMPTION BY COMPANY. . . . . . . . . 7
          SECTION 3.3.  NO SINKING FUND . . . . . . . . . . . . . . . . 8

                         ARTICLE IV

             EXTENSION OF INTEREST PAYMENT PERIOD

          SECTION 4.1.  EXTENSION OF INTEREST PAYMENT PERIOD. . . . . . 8
          SECTION 4.2.  NOTICE OF EXTENSION . . . . . . . . . . . . . . 9

                         ARTICLE V
 
                         EXPENSES

          SECTION 5.1.  PAYMENT OF EXPENSES . . . . . . . . . . . . . .10

                         ARTICLE VI 
             
                       SUBORDINATION

          SECTION 6.1.  AGREEMENT TO SUBORDINATE. . . . . . . . . . . .11
          SECTION 6.2.  DEFAULT ON SENIOR INDEBTEDNESS. . . . . . . . .11


                                     -i-


          SECTION 6.3.  LIQUIDATION; DISSOLUTION; BANKRUPTCY. . . . . .12
          SECTION 6.4.  SUBROGATION . . . . . . . . . . . . . . . . . .14
          SECTION 6.5.  TRUSTEE TO EFFECTUATE SUBORDINATION . . . . . .15
          SECTION 6.6.  NOTICE BY THE COMPANY . . . . . . . . . . . . .15
          SECTION 6.7.  RIGHTS OF THE TRUSTEE; HOLDERS OF SENIOR
                         INDEBTEDNESS . . . . . . . . . . . . . . . . .16
          SECTION 6.8.  SUBORDINATION MAY NOT BE IMPAIRED . . . . . . .16

                             ARTICLE VII  

                     COVENANT TO LIST ON EXCHANGE

          SECTION 7.1.  LISTING ON EXCHANGE . . . . . . . . . . . . . .17

                            ARTICLE VIII

                    FORM OF SUBORDINATED DEBENTURE

          SECTION 8.1.  FORM OF SUBORDINATED DEBENTURE. . . . . . . . .17

                             ARTICLE IX

              ORIGINAL ISSUE OF SUBORDINATED DEBENTURES

          SECTION 9.1.  ORIGINAL ISSUE OF SUBORDINATED DEBENTURES . . .27

                             ARTICLE X

                           MISCELLANEOUS

          SECTION 10.1.  RATIFICATION OF INDENTURE. . . . . . . . . . .27
          SECTION 10.2.  TRUSTEE NOT RESPONSIBLE FOR RECITALS . . . . .27
          SECTION 10.3.  GOVERNING LAW. . . . . . . . . . . . . . . . .27
          SECTION 10.4.  SEPARABILITY . . . . . . . . . . . . . . . . .27
          SECTION 10.5.  COUNTERPARTS . . . . . . . . . . . . . . . . .28



                                     -ii-



          THIS FIRST SUPPLEMENTAL INDENTURE, dated as of November 18, 1997 
(the "FIRST SUPPLEMENTAL INDENTURE"), between Telephone and Data Systems, 
Inc., an Iowa corporation (the Company"), and The First National Bank of 
Chicago, a national banking association, duly organized and existing under 
the laws of the United States, as trustee (the Trustee") under the Indenture 
dated as of October 15, 1997 between the Company and the Trustee (the 
Indenture").

                      W I T N E S S E T H:

          WHEREAS, the Company executed and delivered the Indenture to the 
Trustee to provide for the future issuance of the Company's unsecured  
subordinated debt securities, to be issued from time to time in one or more 
series as might be determined by the Company under the Indenture, in an 
unlimited aggregate principal amount which may be authenticated and delivered 
as provided in the Indenture; and

          WHEREAS, pursuant to the terms of the Indenture, the Company 
desires to provide for the establishment of a new series of its Debt 
Securities to be known as its 8.50% Junior Subordinated Deferrable Interest 
Debentures due December 31, 2037 (the "Subordinated Debentures"), the form 
and substance of which and the terms, provisions and conditions thereof to be 
set forth as provided in the Indenture and this First Supplemental Indenture; 
and

          WHEREAS, TDS Capital I, a Delaware statutory business trust (the 
Trust"), has offered to the public $150,000,000 aggregate stated liquidation 
amount of its Trust Originated Preferred Securities (the "Preferred 
Securities") and has offered to the Company $4,640,000 aggregate stated 
liquidation amount of its Trust Originated Common Securities (the "Common 
Securities"), such Preferred Securities and Common Securities representing 
undivided beneficial interests in the assets of the Trust, and proposes to 
invest the proceeds from such offering in $154,640,000 aggregate principal 
amount of the Subordinated Debentures; and

          WHEREAS, the Company has requested the Trustee to execute and 
deliver this First Supplemental Indenture, and all requirements necessary to 
make this First Supplemental Indenture a valid instrument, in accordance with 
its terms, and to make the Subordinated Debentures, when executed by the 
Company and authenticated and delivered by the Trustee, the valid obligations 
of the Company, have been performed, and the execution and delivery of this 
First Supplemental Indenture has been duly authorized in all respects;




          NOW, THEREFORE, in consideration of the purchase and acceptance of 
the Subordinated Debentures by the holder thereof, and for the purpose of 
setting forth, as provided in the Indenture, the form and substance of the 
Subordinated Debentures and the terms, provisions and conditions thereof, the 
Company covenants and agrees with the Trustee as follows:

                           ARTICLE I

                          DEFINITIONS

          SECTION 1.1.  DEFINITION OF TERMS.  Unless the context otherwise 
requires, (a) a term defined in the Indenture has the same meaning when used 
in this First Supplemental Indenture; (b)  a term defined anywhere in this 
First Supplemental Indenture has the same meaning throughout; and (c) the 
following terms have the meanings given to them in the Declaration: (i) 
Clearing Agency; (ii) Delaware Trustee; (iii) Redemption Tax Opinion; (iv) 
Preferred Security Certificate; (v) Property Trustee; (vi) Pro Rata; (vii) 
Regular Trustees; and (viii) Tax Event.

          In addition, the following terms have the following respective 
meanings:

DECLARATION:

          The term "Declaration" shall mean the Amended and Restated 
Declaration of Trust of TDS Capital I, a Delaware business trust, dated as of 
November 18, 1997.

MATURITY DATE:

          The term "Maturity Date" shall mean the date on which the 
Subordinated Debentures mature and on which the principal shall be due and 
payable together with all accrued and unpaid interest thereon including 
Compounded Interest (as defined in Section 4.1) and Additional Interest (as 
defined in Section 2.5(c)), if any.

SENIOR INDEBTEDNESS:

          The term "Senior Indebtedness" shall mean (i) any payment in 
respect of (A) indebtedness of the Company for money borrowed and (B) 
indebtedness evidenced by securities, debentures, bonds, notes or other 
similar instruments issued by the Company; (ii) all capital lease obligations 
of the Company; (iii) all obligations of the Company issued or assumed as the 



                                     -2-



deferred purchase price of property, all conditional sale obligations of the 
Company and all of its obligations under any title retention agreement (but 
excluding trade accounts payable arising in the ordinary course of business); 
(iv) all obligations of the Company for reimbursement on any letter of 
credit, banker's acceptance, security purchase facility or similar credit 
transaction; (v) all obligations of the type referred to in clauses (i) 
through (iv) of other Persons for the payment of which the Company is 
responsible or liable as obligor, guarantor or otherwise; and (vi) all 
obligations of the type referred to in clauses (i) through (v) of other 
Persons secured by any lien on any property or asset of the Company (whether 
or not such obligation is assumed by the Company), except for (1) the 
Subordinated Debentures and any other indebtedness that is by its terms 
subordinated to or pari passu with the Subordinated Debentures, as the case 
may be, including all other debt securities and guarantees in respect of 
those debt securities, issued to any other trusts, partnerships or any other 
entity affiliated with the Company which is a financing vehicle of the 
Company ("Financing Entity") in connection with an issuance of preferred 
securities by such Financing Entity or other securities which rank pari passu 
with, or junior to, the Preferred Securities, and (2) any indebtedness 
between or among the Company and its Affiliates.

          SECTION 1.2.  INTERPRETATION.  Each definition in this First 
Supplemental Indenture includes the singular and the plural, and references 
to the neuter gender include the masculine and feminine where appropriate.  
Terms which relate to accounting matters shall be interpreted in accordance 
with generally accepted accounting principles in effect from time to time. 
References to any statute mean such statute as amended at the time and 
include any successor legislation.  The word "or" is not exclusive, and the 
words "herein," "hereof" and "hereunder" refer to this First Supplemental 
Indenture as a whole.  The headings to the Articles and Sections are for 
convenience of reference and shall not affect the meaning or interpretation 
of this First Supplemental Indenture.  References to Articles and Sections  
mean the Articles and Sections of this First Supplemental Indenture unless 
otherwise specified.


                                     -3-



                           ARTICLE II

                GENERAL TERMS AND CONDITIONS OF
                  THE SUBORDINATED DEBENTURES


          SECTION 2.1.  DESIGNATION AND PRINCIPAL AMOUNT.  There is hereby 
authorized a series of Debt Securities designated the "8.50% Junior 
Subordinated Deferrable Interest Debentures due December 31, 2037," limited 
in aggregate principal amount to $154,640,000, which amount shall be as set 
forth in any written order of the Company for the authentication and delivery 
of such Debt Securities pursuant to Section 2.04 of the Indenture.

          SECTION 2.2.  MATURITY.  The Maturity Date will be the Stated 
Maturity Date provided that the Company may at its option at any time prior 
to the Stated Maturity Date extend the Maturity Date to a date not later than 
December 31, 2046; PROVIDED, HOWEVER, that at the time such election is made 
and at the effective time of such extension (as specified by the Company) (i) 
the Company is not in bankruptcy, otherwise insolvent or in liquidation, (ii) 
the Company is not in default in the payment of any interest or principal on 
the Subordinated Debentures, and (iii) in the case of Subordinated Debentures 
held by the Trust, the Trust is not in arrears on payments of Distributions 
and no deferred Distributions are accumulated.  In the event the Company 
elects to extend the stated maturity of the Subordinated Debentures, it shall 
give notice of any such change to the Trustee, and the Trustee shall give 
notice of such extension to the Holders of the Subordinated Debentures, not 
more than 90 and not less than 30 days prior to the effective time of such 
extension.

          SECTION 2.3.  FORM AND PAYMENT.  Except as provided in Section 2.4, 
the Subordinated Debentures shall be issued in fully registered certificated 
form without interest coupons.  Principal and interest on the Subordinated 
Debentures issued in certificated form will be payable, the transfer of such 
Subordinated Debentures will be registrable and such Subordinated Debentures 
will be exchangeable for Subordinated Debentures bearing identical terms and 
provisions at the office or agency of the Trustee in Chicago, Illinois, 
PROVIDED, HOWEVER, that payment of interest may be made at the option of the 
Company by check mailed to the registered holder at such address as shall 
appear in the Security Register or by wire transfer to such account as may 
have been appropriately designated by such holder.  Notwithstanding the 
foregoing, so long as the registered holder of any Subordinated Debentures is 
the Property Trustee, the 



                                     -4-


payment of the principal of and interest (including Compounded Interest and 
Additional Interest, if any) on such Subordinated Debentures held by the 
Property Trustee will be made at such place and to such account as may be 
designated by the Property Trustee.  The Subordinated Debentures will be 
denominated in U.S. dollars and payments of principal and interest on the 
Subordinated Debentures shall be made in U.S. dollars.

          SECTION 2.4.  GLOBAL SUBORDINATED DEBENTURE.  In connection with 
the dissolution of the Trust:

          (a)  the Subordinated Debentures in certificated form may be
     presented to the Trustee by the Property Trustee in exchange for a Global
     Security in an aggregate principal amount equal to the aggregate principal
     amount of the Subordinated Debentures so presented, to be registered in
     the name of the Depositary, or its nominee, and delivered by the Trustee
     to the Depositary for crediting to the accounts of its participants
     pursuant to the instructions of the Regular Trustees.  The Company, upon
     any such presentation, shall execute a Global Security in such aggregate
     principal amount and deliver the same to the Trustee for authentication
     and delivery in accordance with the Indenture and this First Supplemental
     Indenture.  Payments on the Subordinated Debentures issued as a Global
     security will be made to the Depositary; and

          (b)  if any Preferred Securities are held in non book-entry
     certificated form, the Subordinated Debentures in certificated form may be
     presented to the Trustee by the Property Trustee and any Preferred
     Security Certificate which represents Preferred Securities other than
     Preferred Securities held by the Clearing Agency or its nominee ("Non Book-
     Entry Preferred Securities") will be deemed to represent beneficial
     interests in Subordinated Debentures presented to the Trustee by the
     Property Trustee having an aggregate principal amount equal to the
     aggregate stated liquidation amount of the Non Book-Entry Preferred
     Securities until such Preferred Security Certificates are presented to the
     Security Registrar for transfer or reissuance at which time such Preferred
     Security Certificates will be cancelled and a Subordinated Debenture,
     registered in the name of the holder of the Preferred Security Certificate
     or the transferee of the holder of such Preferred Security Certificate, as
     the case may be, with an aggregate principal amount equal to the aggregate
     stated liquidation amount of the Preferred Security Certificate cancelled,
     will be executed by the Company and delivered to the Trustee for


                                     -5-


     authentication and delivery in accordance with the Indenture and this
     First Supplemental Indenture.  On issue of such Subordinated Debentures,
     Subordinated Debentures with an equivalent aggregate principal amount that
     were presented by the Property Trustee to the Trustee will be deemed to
     have been cancelled.

          SECTION 2.5.  INTEREST.

          (a)  Each Subordinated Debenture will bear interest at the rate of 
8.50% per annum (the "Coupon Rate") from the original date of issuance until 
the principal thereof becomes due and payable, and on any overdue principal 
and (to the extent that payment of such interest is enforceable under 
applicable law) on any overdue installment of interest at the Coupon Rate, 
compounded quarterly, payable (subject to the provisions of Article IV) 
quarterly in arrears on March 31, June 30, September 30 and December 31 of 
each year (each, an "Interest Payment Date"), commencing on December 31, 
1997, to the Person in whose name such Subordinated Debenture or any 
predecessor Subordinated Debenture is registered, at the close of business on 
the regular record date for such interest installment, which shall be the 
close of business on the Business Day next preceding that Interest Payment 
Date.  If pursuant to the provisions of Section 2.11(c) of the Indenture the 
Subordinated Debentures are no longer represented by a Global Security, the 
Company may select a regular record date for such interest installment which 
shall be any date at least fifteen days before an Interest Payment Date.

          (b)  The amount of interest payable for any period will be computed 
on the basis of a 360-day year of twelve 30-day months.  In the event that 
any date on which interest is payable on the Subordinated Debentures is not a 
Business Day, then payment of interest payable on such date will be made on 
the next succeeding day which is a Business Day (and without any interest or 
other payment in respect of any such delay), except that, if such Business 
Day is in the next succeeding calendar year, such payment shall be made on 
the immediately preceding Business Day, in each case with the same force and 
effect as if made on such date.  The amount of interest payable for any 
period shorter than a full quarterly period for which interest is computed, 
will be computed on the basis of the actual number of days elapsed in such a 
90-day quarter.

          (c)  If at any time while the Property Trustee is the holder of any 
Subordinated Debentures, the Trust or the Property Trustee is required to pay 
any taxes, duties, assessments or 



                                     -6-


governmental charges of whatever nature (other than withholding taxes) 
imposed by the United States, or any other taxing authority, then, in any 
case, the Company will pay as additional interest ("Additional Interest") on 
the Subordinated Debentures held by the Property Trustee, such additional 
amounts as shall be required so that the net amounts received and retained by 
the Trust and the Property Trustee after paying such taxes, duties, 
assessments or other governmental charges will be equal to the amounts the 
Trust and the Property Trustee would have received had no such taxes, duties, 
assessments or other government charges been imposed.

                          ARTICLE III

           REDEMPTION OF THE SUBORDINATED DEBENTURES

          SECTION 3.1.  TAX EVENT REDEMPTION.  If a Tax Event has occurred 
and is continuing and the Company has received a Redemption Tax Opinion, 
then, notwithstanding Section 3.2(a) but subject to Section 3.2(b), the 
Company shall have the right upon not less than 30 days' nor more than 60 
days' notice to the registered holders of the Subordinated Debentures to 
redeem the Subordinated Debentures, in whole but not in part, for cash within 
90 days following the occurrence of such Tax Event (the "90 Day Period") at a 
redemption price equal to 100% of the principal amount to be redeemed plus 
any accrued and unpaid interest thereon to the date of such redemption (the 
"Redemption Price") PROVIDED THAT, if at the time there is available to the 
Company the opportunity to eliminate, within the 90 Day Period, the Tax Event 
by taking some ministerial action ("Ministerial Action"), such as filing a 
form or making an election, or pursuing some other similar reasonable measure 
that has no adverse effect on the Company, the Trust or the Holders of the 
Trust Securities issued by the Trust, the Company shall pursue such 
Ministerial Action in lieu of redemption; and PROVIDED FURTHER, that the 
Company shall have no right to redeem the Subordinated Debentures while the 
Trust is pursuing any Ministerial Action pursuant to its obligations under 
the Declaration.  The Redemption Price shall be paid prior to 12:00 noon, New 
York time, on the date of such redemption or at such earlier time as the 
Company determines and specifies in the notice of redemption, provided the 
Company shall deposit with the Trustee an amount sufficient to pay the 
Special Redemption Price by 11:00 a.m. on the date such Redemption Price is 
to be paid.

          SECTION 3.2.  OPTIONAL REDEMPTION BY COMPANY.


                                     -7-


          (a)  Subject to the provisions of Article III of the Indenture and 
to Section 3.2(b), the Company shall have the right to redeem the 
Subordinated Debentures, in whole or in part, from time to time, on or after  
November 18, 2002, at the Redemption Price.  Any redemption pursuant to this 
paragraph will be made upon not less than 30 days' nor more than 60 days' 
notice to the registered holder of the Subordinated Debentures, at the 
Redemption Price.  If the Subordinated Debentures are only partially redeemed 
pursuant to this Section 3.2, the Subordinated Debentures will be redeemed 
pro rata or by lot or by any other method utilized by the Trustee; PROVIDED, 
that if at the time of redemption, the Subordinated Debentures are registered 
as a Global Security, the Depositary shall determine by lot the principal 
amount of such Subordinated Debentures held by each holder to be redeemed.  
The Redemption Price shall be paid prior to 12:00 noon, New York time, on the 
date of such redemption or at such earlier time as the Company determines and 
specifies in the notice of redemption, provided the Company shall deposit 
with the Trustee an amount sufficient to pay the Redemption Price by 11:00 
a.m. on the date such Redemption Price is to be paid.

          (b)  If a partial redemption of the Subordinated Debentures would 
result in the delisting of the Preferred Securities issued by the Trust from 
any national securities exchange or other organization on which the Preferred 
Securities are then listed, the Company shall not be permitted to effect such 
partial redemption and may only redeem the Subordinated Debentures in whole.

          SECTION 3.3.  NO SINKING FUND.  The Subordinated Debentures are not 
entitled to the benefit of any sinking fund.

                           ARTICLE IV

              EXTENSION OF INTEREST PAYMENT PERIOD

          SECTION 4.1.  EXTENSION OF INTEREST PAYMENT PERIOD.  The Company 
shall have the right, at any time and from time to time during the term of 
the Subordinated Debentures, to extend the interest payment period of such 
Subordinated Debentures for up to twenty (20) consecutive quarters (the 
"Extended Interest Payment Period"); provided, that, during any such Extended 
Interest Payment Period, (a) the Company may not declare or pay any dividend 
on, make any distributions with respect to, or redeem, purchase or acquire, 
or make a liquidation payment with respect to, any of its capital stock 
(other than (i) purchases or acquisitions of shares of Company common stock 
in connection with 



                                     -8-


the satisfaction by the Company of its obligations under any employee benefit 
plans or any other contractual obligation of the Company (other than a 
contractual obligation ranking PARI PASSU with or junior to the Subordinated 
Debentures), (ii) as a result of a reclassification of Company capital stock 
or the exchange or conversion of one class or series of Company capital stock 
for another class or series of Company capital stock or (iii) the purchase of 
fractional interests in shares of Company capital stock pursuant to the 
conversion or exchange provisions of such Company capital stock or the 
security being converted or exchanged), (b) the Company may not make any 
payment of interest, principal or premium, if any, on or repay, repurchase or 
redeem any debt securities (including guarantees) issued by the Company which 
rank PARI PASSU with or junior to the Subordinated Debentures and (c) the 
Company may not make any guarantee payments with respect to the foregoing 
(other than pursuant to the Preferred Securities Guarantee).  To the extent 
permitted by applicable law, interest, the payment of which has been deferred 
because of the extension of the interest payment period pursuant to this 
Section 4.1, will bear interest compounded quarterly at the Coupon Rate for 
each quarter of the Extended Interest Payment Period ("Compounded Interest"). 
At the end of the Extended Interest Payment Period, the Company shall pay all 
interest accrued and unpaid on the Subordinated Debentures, including any 
Compounded Interest and Additional Interest ("Deferred Interest") which shall 
be payable to the holders of the Subordinated Debentures in whose names the 
Subordinated Debentures are registered in the Security Register on the first 
record date after the end of the Extended Interest Payment Period.  Prior to 
the termination of any Extended Interest Payment Period, the Company may 
further extend such period, PROVIDED that such period together with all such 
further extensions thereof shall not exceed twenty (20) consecutive quarters 
or extend beyond the maturity of the Subordinated Debentures.  Upon the 
termination of any Extended Interest Payment Period and upon the payment of 
all Deferred Interest then due, the Company may select a new Extended 
Interest Payment Period, subject to the foregoing requirements.  No interest 
shall be due and payable during an Extended Interest Payment Period, except 
at the end thereof.

          SECTION 4.2.  NOTICE OF EXTENSION.

          (a)  If the Property Trustee is the only registered holder of the 
Subordinated Debentures at the time the Company selects an Extended Interest 
Payment Period, the Company shall give written notice to both the Regular 
Trustees and the Property Trustee of its selection of such Extended Interest 
Payment Period one Business Day before the earlier of (i) the next succeeding 


                                     -9-


date on which Distributions on the Trust Securities issued by the Trust are 
payable, or (ii) the date the Trust is required to give notice of the record 
or payment date for such Distributions to the New York Stock Exchange or 
other applicable self-regulatory organization or to holders of the Preferred 
Securities issued by the Trust, but in any event at least one Business Day 
before such record date.

          (b)  If the Property Trustee is not the only holder of the 
Subordinated Debentures at the time the Company selects an Extended Interest 
Payment Period, the Company shall give the holders of the Subordinated 
Debentures and the Trustee written notice of its selection of such Extended 
Interest Payment Period ten (10) Business Days before the earlier of (i) the 
next succeeding Interest Payment Date, or (ii) the date the Company is 
required to give notice of the record or payment date of such interest 
payment to the New York Stock Exchange or other applicable self-regulatory 
organization or to holders of the Subordinated Debentures, but in any event 
at least two Business Days before such record date.

          (c)  The quarter in which any notice is given pursuant to 
paragraphs (a) or (b) of this Section 4.2 shall be counted as one of the 
twenty quarters permitted in the maximum Extended Interest Payment Period 
permitted under Section 4.1.

                           ARTICLE V

                            EXPENSES

          SECTION 5.1.  PAYMENT OF EXPENSES.  In connection with the 
offering, sale and issuance of the Subordinated Debentures to the Property 
Trustee in connection with the sale of the Trust Securities by the Trust, the 
Company shall:

          (a)  pay all costs and expenses relating to the offering, sale and
     issuance of the Subordinated Debentures, including commissions to the
     underwriters payable pursuant to the Underwriting Agreement and
     compensation of the Trustee under the Indenture in accordance with the
     provisions of Section 7.06 of the Indenture;

          (b)  pay all costs and expenses of the Trust (including, but not
     limited to, costs and expenses relating to the organization of the Trust,
     the offering, sale and issuance of the Trust Securities (including
     commissions to the underwriters in connection therewith), the fees and ex-



                                    -10-



     penses of the Property Trustee and the Delaware Trustee, the costs and
     expenses relating to the operation of the Trust, including without
     limitation, costs and expenses of accountants, attorneys, statistical or
     bookkeeping services, expenses for printing and engraving and computing or
     accounting equipment, paying agent(s), registrar(s), transfer agent(s),
     duplicating, travel and telephone and other telecommunications expenses
     and costs and expenses incurred in connection with the acquisition,
     financing, and disposition of Trust assets); and

          (c)  pay any and all taxes (other than United States withholding
     taxes) and all liabilities, costs and expenses with respect to such taxes
     of the Trust.


                           ARTICLE VI

                         SUBORDINATION

          SECTION 6.1.  AGREEMENT TO SUBORDINATE.  The Company covenants and 
agrees, and each holder of Subordinated Debentures issued hereunder by such 
holder's acceptance thereof likewise covenants and agrees, that all 
Subordinated Debentures shall be issued subject to the provisions of this 
Article VI; and each holder of a Subordinated Debenture, whether upon 
original issue or upon transfer or assignment thereof, accepts and agrees to 
be bound by such provisions.

          The payment by the Company of the principal of, premium, if any, 
and interest on all Subordinated Debentures issued hereunder shall, to the 
extent and in the manner hereinafter set forth, be subordinated and subject 
in right of payment to the prior payment in full of all Senior Indebtedness 
of the Company, whether outstanding at the date of this First Supplemental 
Indenture or thereafter incurred.

          No provision of this Article VI shall prevent the occurrence of any 
default or Event of Default hereunder.

          SECTION 6.2.  DEFAULT ON SENIOR INDEBTEDNESS.  In the event and 
during the continuation of any default by the Company in the payment of 
principal, premium, interest or any other payment due on any Senior 
Indebtedness of the Company, or in the event that the maturity of any Senior 
Indebtedness of the Company has been accelerated because of a default, then, 
in either case, no payment shall be made by the Company with respect to the 


                                    -11-


principal (including redemption payments) of, or premium, if any, or interest 
on the Subordinated Debentures.

          In the event that, notwithstanding the foregoing, any payment shall 
be received by the Trustee or any holder of Subordinated Debentures when such 
payment is prohibited by the preceding paragraph of this Section 6.2, such 
payment shall be held in trust for the benefit of, and shall be paid over or 
delivered to, the holders of Senior Indebtedness or their respective 
representatives, or to the trustee or trustees under any indenture pursuant 
to which any of such Senior Indebtedness may have been issued, as their 
respective interests may appear, but only to the extent that the holders of 
the Senior Indebtedness (or their representative or representatives or a 
trustee) notify the Trustee within 90 days of such payment of the amounts 
then due and owing on the Senior Indebtedness and only the amounts specified 
in such notice to the Trustee shall be paid to the holders of Senior 
Indebtedness.

          SECTION 6.3.  LIQUIDATION; DISSOLUTION; BANKRUPTCY.  Upon any 
payment by the Company, or distribution of assets of the Company of any kind 
or character, whether in cash, property or securities, to creditors upon any 
dissolution or winding-up or liquidation or reorganization of the Company, 
whether voluntary or involuntary or in bankruptcy, insolvency, receivership 
or other proceedings, all amounts due upon all Senior Indebtedness shall 
first be paid in full, or payment thereof provided for in money in accordance 
with its terms, before any payment is made by the Company on account of the 
principal (and premium, if any) or interest on the Subordinated Debentures; 
and upon any such dissolution or winding-up or liquidation or reorganization, 
any payment by the Company, or distribution of assets of the Company of any 
kind or character, whether in cash, property or securities, to which the 
holders of the Subordinated Debentures or the Trustee would be entitled to 
receive from the Company, except for the provisions of this Article VI, shall 
be paid by the Company or by any receiver, trustee in bankruptcy, liquidating 
trustee, agent or other Person making such payment or distribution, or by the 
holders of the Subordinated Debentures or by the Trustee under this Indenture 
if received by them or it, directly to the holders of Senior Indebtedness of 
the Company (pro rata to such holders on the basis of the respective amounts 
of Senior Indebtedness held by such holders, as calculated by the Company) or 
their representative or representatives, or to the trustee or trustees under 
any indenture pursuant to which any instruments evidencing such Senior 
Indebtedness may have been issued, as their respective interests may appear, 
to the extent necessary to pay such Senior Indebtedness in full, in money or 


                                    -12-


money's worth, after giving effect to any concurrent payment or distribution 
to or for the holders of such Senior Indebtedness, before any payment or 
distribution is made to the holders of Subordinated Debentures or to the 
Trustee.

          In the event that, notwithstanding the foregoing, any payment or 
distribution of assets of the Company of any kind or character, whether in 
cash, property or securities, prohibited by the foregoing, shall be received 
by the Trustee or the holders of the Subordinated Debentures before all 
Senior Indebtedness of the Company is paid in full, or provision is made for 
such payment in money in accordance with its terms, such payment or 
distribution shall be held in trust for the benefit of and shall be paid over 
or delivered to the holders of such Senior Indebtedness or their 
representative or representatives, or to the trustee or trustees under any 
indenture pursuant to which any instruments evidencing such Senior 
Indebtedness may have been issued, as their respective interests may appear, 
as calculated by the Company, for application to the payment of all Senior 
Indebtedness of the Company remaining unpaid to the extent necessary to pay 
such Senior Indebtedness in full in money in accordance with its terms, after 
giving effect to any concurrent payment or distribution to or for the benefit 
of the holders of such Senior Indebtedness.

          For purposes of this Article VI, the words "cash, property or 
securities" shall not be deemed to include shares of stock of the Company as 
reorganized or readjusted, or securities of the Company or any other 
corporation provided for by a plan of reorganization or readjustment, the 
payment of which is subordinated at least to the extent provided in this 
Article VI with respect to the Subordinated Debentures to the payment of all 
Senior Indebtedness of the Company that may at the time be outstanding, 
PROVIDED that (i) such Senior Indebtedness is assumed by the new corporation, 
if any, resulting from any such reorganization or readjustment, and (ii) the 
rights of the holders of such Senior Indebtedness are not, without the 
consent of such holders, altered by such reorganization or readjustment.  The 
consolidation of the Company with, or the merger of the Company into, another 
corporation or the liquidation or dissolution of the Company following the 
conveyance or transfer of its property as an entirety, or substantially as an 
entirety, to another corporation upon the terms and conditions provided for 
in Article X of the Indenture shall not be deemed a dissolution, winding-up, 
liquidation or reorganization for the purposes of this Section 6.3 if such 
other corporation shall, as a part of such consolidation, merger, conveyance 
or transfer, comply with the conditions stated in Article X of the Indenture. 
Nothing in 


                                    -13-


Section 6.2 or in this Section 6.3 shall apply to claims of, or payments to, 
the Trustee under or pursuant to Section 7.06 of the Indenture.

          SECTION 6.4.  SUBROGATION.  Subject to the payment in full of all 
Senior Indebtedness of the Company, the rights of the holders of the 
Subordinated Debentures shall be subrogated to the rights of the holders of 
such Senior Indebtedness to receive payments or distributions of cash, 
property or securities of the Company applicable to such Senior Indebtedness 
until the all amounts owing on the Subordinated Debentures shall be paid in 
full; and, for the purposes of such subrogation, no payments or distributions 
to the holders of such Senior Indebtedness of any cash, property or 
securities to which the holders of the Subordinated Debentures or the Trustee 
would be entitled except for the provisions of this Article VI, and no 
payment over pursuant to the provisions of this Article VI, to or for the 
benefit of the holders of such Senior Indebtedness by holders of the 
Subordinated Debentures or the Trustee, shall, as between the Company, its 
creditors other than holders of Senior Indebtedness of the Company, and the 
holders of the Subordinated Debentures be deemed to be a payment by the 
Company to or on account of such Senior Indebtedness.  It is understood that 
the provisions of this Article VI are and are intended solely for the 
purposes of defining the relative rights of the holders of the Subordinated 
Debentures, on the one hand, and the holders of such Senior Indebtedness on 
the other hand.

          Nothing contained in this Article VI or elsewhere in this Indenture 
or in the Subordinated Debentures is intended to or shall impair, as between 
the Company, its creditors other than the holders of Senior Indebtedness of 
the Company, and the holders of the Subordinated Debentures, the obligation 
of the Company which is absolute and unconditional, to pay to the holders of 
the Subordinated Debentures the principal of (and premium, if any) and 
interest on the Subordinated Debentures as and when the same shall become due 
and payable in accordance with their terms, or is intended to or shall affect 
the relative rights of the holders of the Subordinated Debentures and 
creditors of the Company, other than the holders of Senior Indebtedness of 
the Company, nor shall anything herein or therein prevent the Trustee or the 
holder of any Subordinated Debenture from exercising all remedies otherwise 
permitted by applicable law upon default under the Indenture, subject to the 
rights, if any, under this Article VI of the holders of such Senior 
Indebtedness in respect of cash, property or securities of the Company, 
received upon the exercise of any such remedy.


                                    -14-


          Upon any payment or distribution of assets of the Company referred 
to in this Article VI, the Trustee, subject to the provisions of Section 7.01 
of the Indenture, and the holders of the Subordinated Debentures, shall be 
entitled to rely upon any order or decree made by any court of competent 
jurisdiction in which such dissolution, winding-up, liquidation or 
reorganization proceedings are pending, or a certificate of the receiver, 
trustee in bankruptcy, liquidation trustee, agent or other Person making such 
payment or distribution, delivered to the Trustee or to the holders of the 
Subordinated Debentures, for the purposes of ascertaining the Persons 
entitled to participate in such distribution, the holders of Senior 
Indebtedness and other indebtedness of the Company, the amount thereof or 
payable thereon, the amount or amounts paid or distributed thereon and all 
other facts pertinent thereto or to this Article VI.

          SECTION 6.5.  TRUSTEE TO EFFECTUATE SUBORDINATION.  Each holder of 
a Subordinated Debenture by such holder's acceptance thereof authorizes and 
directs the Trustee on such holder's behalf to take such action as may be 
necessary or appropriate to effectuate the subordination provided in this 
Article VI and appoints the Trustee such holder's attorney-in-fact for any 
and all such purposes.

          SECTION 6.6.  NOTICE BY THE COMPANY.  The Company shall give prompt 
written notice to a Responsible Officer of the Trustee of any fact known to 
the Company that would prohibit the making of any payment of monies to or by 
the Trustee in respect of the Subordinated Debentures pursuant to the 
provisions of this Article VI.  Notwithstanding the provisions of this 
Article VI or any other provision of the Indenture and this First 
Supplemental Indenture, the Trustee shall not be charged with knowledge of 
the existence of any facts that would prohibit the making of any payment of 
monies to or by the Trustee in respect of the Subordinated Debentures 
pursuant to the provisions of this Article VI unless and until a Responsible 
Officer of the Trustee shall have received written notice thereof at the 
Principal Office of the Trustee from the Company or a holder or holders of 
Senior Indebtedness or from any trustee therefor; and before the receipt of 
any such written notice, the Trustee, subject to the provisions of Section 
7.01 of the Indenture, shall be entitled in all respects to assume that no 
such facts exist; PROVIDED, HOWEVER, that if the Trustee shall not have 
received the notice provided for in this Section 6.6 at least two Business 
Days prior to the date upon which by the terms hereof any money may become 
payable for any purpose (including, without limitation, the payment of the 
principal of (or premium, if any) or interest on any Subordinated Debenture), 
then, anything herein contained to 


                                    -15-


the contrary notwithstanding, the Trustee shall have full power and authority 
to receive such money and to apply the same to the purposes for which they 
were received, and shall not be affected by any notice to the contrary that 
may be received by it within two Business Days prior to such date.

          The Trustee, subject to the provisions of Section 7.01 of the 
Indenture, shall be entitled to rely on the delivery to it of a written 
notice by a Person representing himself to be a holder of Senior Indebtedness 
of the Company (or a trustee on behalf of such holder) to establish that such 
notice has been given by a holder of such Senior indebtedness or a trustee on 
behalf of any such holder or holders.  In the event that the Trustee 
determines in good faith that further evidence is required with respect to 
the right of any Person as a holder of such Senior Indebtedness to 
participate in any payment or distribution pursuant to this Article VI, the 
Trustee may request such Person to furnish evidence to the reasonable 
satisfaction of the Trustee as to the amount of such Senior Indebtedness held 
by such Person, the extent to which such Person is entitled to participate in 
such payment or distribution and any other facts pertinent to the rights of 
such Person under this Article VI, and if such evidence is not furnished, the 
Trustee may defer any payment to such Person pending judicial determination 
as to the right of such Person to receive such payment.

          SECTION 6.7.  RIGHTS OF THE TRUSTEE; HOLDERS OF SENIOR 
INDEBTEDNESS. The Trustee in its individual capacity shall be entitled to all 
the rights set forth in this Article VI in respect of any Senior Indebtedness 
at any time held by it, to the same extent as any other holder of Senior 
Indebtedness, and nothing in this Indenture shall deprive the Trustee of any 
of its rights as such holder.

          With respect to the holders of Senior Indebtedness of the Company, 
the Trustee undertakes to perform or to observe only such of its covenants 
and obligations as are specifically set forth in this Article VI, and no 
implied covenants or obligations with respect to the holders of such Senior 
Indebtedness shall be read into this Indenture against the Trustee.  The 
Trustee shall not be deemed to owe any fiduciary duty to the holders of such 
Senior Indebtedness and, subject to the provisions of Section 7.01 of the 
Indenture, the Trustee shall not be liable to any holder of such Senior 
Indebtedness if it shall pay over or deliver to holders of Subordinated 
Debentures, the Company or any other Person money or assets to which any 
holder of such Senior Indebtedness shall be entitled by virtue of this 
Article VI or otherwise.


                                    -16-


          SECTION 6.8.  SUBORDINATION MAY NOT BE IMPAIRED.  No right of any 
present or future holder of any Senior Indebtedness of the Company to enforce 
subordination as herein provided shall at any time in any way be prejudiced 
or impaired by any act or failure to act on the part of the Company or by any 
act or failure to act, in good faith, by any such holder, or by any 
noncompliance by the Company with the terms, provisions and covenants of the 
Indenture, regardless of any knowledge thereof that any such holder may have 
or otherwise be charged with.

          Without in any way limiting the generality of the foregoing 
paragraph, the holders of Senior Indebtedness of the Company may, at any time 
and from time to time, without the consent of or notice to the Trustee or the 
holders of the Subordinated Debentures, without incurring responsibility to 
the holders of the Subordinated Debentures and without impairing or releasing 
the subordination provided in this Article VI or the obligations hereunder of 
the holders of the Subordinated Debentures to the holders of such Senior In 
debtedness, do any one or more of the following: (i) change the manner, place 
or terms of payment or extend the time of payment of, or renew or alter, such 
Senior Indebtedness, or otherwise amend or supplement in any manner such 
Senior Indebtedness or any instrument evidencing the same or any agreement 
under which such Senior Indebtedness is outstanding; (ii) sell, exchange, 
release or otherwise deal with any property pledged, mortgaged or otherwise 
securing such Senior Indebtedness; (iii) release any Person liable in any 
manner for the collection of such Senior Indebtedness; and (iv) exercise or 
refrain from exercising any rights against the Company and any other Person.

                          ARTICLE VII

                  COVENANT TO LIST ON EXCHANGE

          SECTION 7.1.  LISTING ON EXCHANGE.  If the Subordinated Debentures 
are to be issued as a Global Security in connection with the distribution of 
the Subordinated Debentures to the holders of the Preferred Securities issued 
by the Trust upon the dissolution of the Trust, the Company will use its best 
efforts to list such Subordinated Debentures on the American Stock Exchange 
or on such other exchange as the Preferred Securities are then listed.

                          ARTICLE VIII

                              -17-




                       FORM OF SUBORDINATED DEBENTURE

     SECTION 8.1.  FORM OF SUBORDINATED DEBENTURE.  The Subordinated 
Debentures and the Trustee's Certificate of Authentication to be endorsed 
thereon are to be substantially in the following forms:

     (FORM OF FACE OF SUBORDINATED DEBENTURE)

     [IF THE SUBORDINATED DEBENTURE IS TO BE A GLOBAL SECURITY, INSERT: 
This Subordinated Debenture 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 Depositary.  This Subordinated Debenture is 
exchangeable for Subordinated Debentures registered in the name of a person 
other than the Depositary or its nominee only in the limited circumstances 
described in the Indenture, and no transfer of this Subordinated Debenture 
(other than a transfer of this Subordinated Debenture as a whole by the 
Depositary to a nominee of the Depositary or by a nominee of the Depositary 
to the Depositary or another nominee of the Depositary) may be registered 
except in limited circumstances.

     Unless this Subordinated Debenture is presented by an authorized 
representative of The Depository Trust Company (55 Water Street, New York, 
New York) to the issuer or its agent for registration of transfer, exchange 
or payment, and any Subordinated Debenture issued is registered in the name 
of Cede & Co. or such other name as requested by an authorized representative 
of The Depository Trust Company and any payment hereon is made to Cede & Co., 
ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY A PERSON 
IS WRONGFUL since the registered owner hereof, Cede & Co., has an interest 
herein.]


                                     -18-


No.                                                     $

CUSIP No.


                         TELEPHONE AND DATA SYSTEMS, INC.

             ___% JUNIOR SUBORDINATED DEFERRABLE INTEREST DEBENTURE
                                DUE ________, ____


     TELEPHONE AND DATA SYSTEMS, INC., an Iowa corporation (the "Company", 
which term includes any successor corporation under the Indenture hereinafter 
referred to), for value received, hereby promises to pay to _______ or 
registered assigns, the principal sum of ____________  Dollars on ________, 
____, or such earlier date established by the Company not earlier than March 
________, and to pay interest on said principal sum from ________, 1997 or 
from the most recent interest payment date (each such date, an "Interest 
Payment Date") to which interest has been paid or duly provided for, 
quarterly (subject to deferral as set forth herein) in arrears on March 31, 
June 30, September 30 and December 31 of each year commencing, December 31, 
1997, at the rate of ___% per annum until the principal hereof shall have 
become due and payable, and on any overdue principal and premium, if any, and 
(without duplication and to the extent that payment of such interest is 
enforceable under applicable law) on any overdue installment of interest 
compounded quarterly at the same rate per annum.  The amount of interest 
payable on any Interest Payment Date shall be computed on the basis of a 
360-day year of twelve 30-day months.  In the event that any date on which 
interest is payable on this Subordinated Debenture is not a Business Day, 
then payment of interest payable on such date will be made on the next 
succeeding day which is a Business Day (and without any interest or other 
payment in respect of any such delay), except that, if such Business Day is 
in the next succeeding calendar year, such payment shall be made on the 
immediately preceding Business Day, in each case with the same force and 
effect as if made on such date.  The interest installment so payable, and 
punctually paid or duly provided for, on any Interest Payment Date will, as 
provided in the Indenture, be paid to the Person in whose name this 
Subordinated Debenture (or one or more Predecessor Securities, as defined in 
said Indenture) is registered at the close of business on the regular record 
date for such interest installment [which shall be the close of business on 
the Business Day next preceding such Interest Payment Date.] [IF PURSUANT TO 
THE PROVISIONS OF Section 2.11(C) OF THE INDENTURE THE SUBORDINATED 
DEBENTURES ARE NO 


                                     -19-


LONGER REPRESENTED BY A GLOBAL SECURITY -- which shall be the close of 
business on the ________ day preceding such Interest Payment Date.] Any such 
interest installment not punctually paid or duly provided for shall 
forthwith cease to be payable to the registered holders on such regular 
record date, and may be paid to the Person in whose name this Subordinated 
Debenture (or one or more Predecessor Securities) is registered at the close 
of business on a special record date to be fixed by the Trustee for the 
payment of such defaulted interest, notice whereof shall be given to the 
registered holders of this series of Subordinated Debentures not less than 
ten (10) days prior to such special record date, or may be paid at any time 
in any other lawful manner not inconsistent with the requirements of any 
securities exchange on which the Subordinated Debentures may be listed, and 
upon such notice as may be required by such exchange, all as more fully 
provided in the Indenture.  The principal of (and premium, if any) and the 
interest on this Subordinated Debenture shall be payable at the office or 
agency of the Trustee maintained for that purpose in Chicago, Illinois, in 
any coin or currency of the United States of America which at the time of 
payment is legal 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 registered holder at such address as shall appear in the 
Security Register.  Notwithstanding the foregoing, so long as the holder of 
this Subordinated Debenture is the Property Trustee, the payment of the 
principal of (and premium, if any) and interest on this Subordinated 
Debenture will be made at such place and to such account as may be designated 
by the Property Trustee.

     The indebtedness evidenced by this Subordinated Debenture is, to the 
extent provided in the Indenture, subordinate and junior in right of payment 
to the prior payment in full of all Senior Indebtedness, and this 
Subordinated Debenture is issued subject to the provisions of the Indenture 
with respect thereto.  Each holder of this Subordinated Debenture, by 
accepting the same, (a) agrees to and shall be bound by such provisions, (b) 
authorizes and directs the Trustee on behalf of such holder to take such 
action as may be necessary or appropriate to acknowledge or effectuate the 
subordination so provided, (c) appoints the Trustee the attorney-in-fact of 
such holder for any and all such purposes and (d) agrees to treat this 
Subordinated Debenture as indebtedness and not as equity for federal income 
tax purposes.  Each holder hereof, by acceptance hereof, hereby waives all 
notice of the acceptance of the subordination provisions contained herein and 
in the Indenture by each holder of Senior Indebtedness, whether now 
outstanding or 


                                     -20-


hereafter incurred, and waives reliance by each such holder upon said 
provisions.

     This Subordinated Debenture shall not be entitled to any benefit under 
the Indenture hereinafter referred to, be valid or become obligatory for any 
purpose until the Certificate of Authentication hereon shall have been signed 
by or on behalf of the Trustee.

     Unless the Certificate of Authentication hereon has been executed by the 
Trustee referred to on the reverse side hereof, this Subordinated Debenture 
shall not be entitled to any benefit under the Indenture or be valid or 
obligatory for any purpose.

     The provisions of this Subordinated Debenture are continued on the 
reverse side hereof and such continued provisions shall for all purposes have 
the same effect as though fully set forth at this place.


                                     -21-


     IN WITNESS WHEREOF, the Company has caused this instrument to be 
executed.


Dated: ___________
                              TELEPHONE AND DATA SYSTEMS, INC.

                              By

                                   [Title]

Attest:


By
     Secretary


                                     -22-

                                       
                     (FORM OF CERTIFICATE OF AUTHENTICATION)

                           CERTIFICATE OF AUTHENTICATION

     This is one of the Subordinated Debentures of the series of Subordinated 
Debentures described in the within-mentioned Indenture.


          THE FIRST NATIONAL BANK       
                                        ------------------------
          OF CHICAGO,                   as Authentication Agent
          Not in Its Individual
          Capacity But Solely
          as Trustee

          By                             By
               Authorized Signatory          Authorized Signatory



                   (FORM OF REVERSE OF SUBORDINATED DEBENTURE)

     This Subordinated Debenture is one of a duly authorized series of 
Subordinated Debentures of the Company (herein sometimes referred to as the 
"Subordinated Debentures"), specified in the Indenture, all issued or to be 
issued in one or more series under and pursuant to an Indenture dated as of 
_______, 1997, duly executed and delivered between the Company and The First 
National Bank of Chicago, not in its individual capacity but solely as 
trustee (the "Trustee"), as supplemented by the First Supplemental Indenture 
dated as of _______, 1997 between the Company and the Trustee (the Indenture 
as so supplemented, the "Indenture"), to which Indenture and all indentures 
supplemental thereto reference is hereby made for a description of the 
rights, limitations of rights, obligations, duties and immunities thereunder 
of the Trustee, the Company and the holders of the Subordinated Debentures.  
By the terms of the Indenture, the Subordinated Debentures are issuable in 
series which may vary as to amount, date of maturity, rate of interest and in 
other respects as in the Indenture provided.  This series of Subordinated 
Debentures is limited in aggregate principal amount as specified in said 
First Supplemental Indenture.

     Upon the occurrence and continuation of a Tax Event, in certain 
circumstances this Subordinated Debenture will become due and payable at the 
principal amount together with any interest accrued thereon (the "Redemption 
Price").  The Redemption Price 


                                     -23-


shall be paid prior to 12:00 noon, New York time, on the date of such 
redemption or at such earlier time as the Company determines.  The Company 
shall have the right to redeem this Subordinated Debenture at the option of 
the Company, without premium or penalty, in whole or in part at any time on 
or after March 31, 2002 (an "Optional Redemption"), at the Redemption Price.  
Any Optional Redemption pursuant to this paragraph will be made upon not less 
than 30 days' nor more than 60 days' notice, at the Redemption Price.  If the 
Subordinated Debentures are only partially redeemed by the Company pursuant 
to an Optional Redemption, the Subordinated Debentures will be redeemed pro 
rata or by lot or by any other method utilized by the Trustee; PROVIDED that 
if at the time of redemption, the Subordinated Debentures are registered as a 
Global Security, the Depositary shall determine by lot the principal amount 
of such Subordinated Debentures held by each holder to be redeemed.

     In the event of redemption of this Subordinated Debenture in part only, 
a new Subordinated Debenture or Subordinated Debentures of this series for 
the unredeemed portion hereof will be issued in the name of the holder hereof 
upon the cancellation hereof.

     In case an Event of Default, as defined in the Indenture, shall have 
occurred and be continuing, the principal of all of the Subordinated 
Debentures may be declared, and upon such declaration shall become, due and 
payable, in the manner, with the effect and subject to the conditions 
provided in the Indenture.

     The Indenture contains provisions permitting the Company and the 
Trustee, with the consent of the holders of not less than a majority in 
aggregate principal amount of the Subordinated Debentures of each series 
affected at the time Outstanding, as defined in the Indenture, to execute 
supplemental indentures for the purpose of adding any provisions to or 
changing in any manner or eliminating any of the provisions of the Indenture 
or of any supplemental indenture or of modifying in any manner the rights of 
the holders of the Subordinated Debentures; PROVIDED, HOWEVER, that no such 
supplemental indenture shall (i) extend the fixed maturity of any 
Subordinated Debentures of any series, or reduce the principal amount 
thereof, or reduce the rate or extend the time of payment of interest 
thereon, or reduce any premium payable upon the redemption thereof, without 
the consent of the holder of each Subordinated Debenture so affected or (ii) 
reduce the aforesaid percentage of Subordinated Debentures, the holders of 
which are required to consent to any such supplemental indenture, without the 
consent 


                                     -24-


of the holders of each Subordinated Debenture then outstanding and affected 
thereby.  The Indenture also contains provisions permitting the holders of a 
majority in aggregate principal amount of the Subordinated Debentures of any 
series at the time outstanding affected thereby, on behalf of all of the 
holders of the Subordinated Debentures of such series, to waive any past 
default in the performance of any of the covenants contained in the 
Indenture, or established pursuant to the Indenture with respect to such 
series, and its consequences, except a default in the payment of the 
principal of or premium, if any, or interest on any of the Subordinated 
Debentures of such series.  Any such consent or waiver by the registered 
holder of this Subordinated Debenture (unless revoked as provided in the 
Indenture) shall be conclusive and binding upon such holder and upon all 
future holders and owners of this Subordinated Debenture and of any 
Subordinated Debenture issued in exchange herefor or in place hereof (whether 
by registration of transfer or otherwise), irrespective of whether or not any 
notation of such consent or waiver is made upon this Subordinated Debenture.

      No reference herein to the Indenture and no provision of this 
Subordinated Debenture or of the Indenture shall alter or impair the 
obligation of the Company, which is absolute and unconditional, to pay the 
principal of and premium, if any, and interest on this Subordinated Debenture 
at the time and place and at the rate and in the money herein prescribed.

     The Company shall have the right at any time during the term of the 
Subordinated Debentures, from time to time to extend the interest payment 
period of such Subordinated Debentures for up to twenty (20) consecutive 
quarters (an "Extended Interest Payment Period"), at the end of which period 
the Company shall pay all interest then accrued and unpaid (together with 
interest thereon at the rate specified for the Subordinated Debentures to the 
extent that payment of such interest is enforceable under applicable law). 
Before the termination of any such Extended Interest Payment Period, the 
Company may further extend such Extended Interest Payment Period, PROVIDED 
that such Extended Interest Payment Period together with all such further 
extensions thereof shall not exceed twenty (20) consecutive quarters or 
extend beyond the maturity of the Subordinated Debentures.  At the 
termination of any such Extended Interest Payment Period and upon the payment 
of all accrued and unpaid interest then due, the Company may select a new 
Extended Interest Payment Period.

     As provided in the Indenture and subject to certain limitations therein 
set forth, this Subordinated Debenture is transferable by the registered 
holder hereof on the Security 


                                     -25-


Register of the Company, upon surrender of this Subordinated Debenture for 
registration of transfer at the office or agency of the Trustee in Chicago, 
Illinois, accompanied by a written instrument or instruments of transfer in 
form satisfactory to the Company or the Trustee duly executed by the 
registered holder hereof or the attorney of such holder duly authorized in 
writing, and thereupon one or more new Subordinated Debentures of authorized 
denominations and for the same aggregate principal amount and series will be 
issued to the designated transferee or transferees.  No service charge will 
be made for any such transfer, but the Company may require payment of a sum 
sufficient to cover any tax or other governmental charge payable in relation 
thereto.

     Prior to due presentment for registration of transfer of this 
Subordinated Debenture, the Company, the Trustee, any paying agent and any 
Security Registrar may deem and treat the registered holder hereof as the 
absolute owner hereof (whether or not this Subordinated Debenture shall be 
overdue and notwithstanding any notice of ownership or writing hereon made by 
anyone other than the Security Registrar) for the purpose of receiving 
payment of or on account of the principal hereof and premium, if any, and 
interest due hereon and for all other purposes, and neither the Company nor 
the Trustee nor any paying agent nor any Security Registrar shall be affected 
by any notice to the contrary.

     No recourse shall be had for the payment of the principal of or the 
interest on this Subordinated Debenture, or for any claim based hereon, or 
otherwise in respect hereof, or based on or in respect of the Indenture, 
against any incorporator, stockholder, officer or director, past, present or 
future, as such, of the Company or of any predecessor or successor 
corporation, whether by virtue of any constitution, statute or rule of law, 
or by the enforcement of any assessment or penalty or otherwise, all such 
liability being, by the acceptance hereof and as part of the consideration 
for the issuance hereof, expressly waived and released.

     
[The Subordinated Debentures of this series are issuable only in registered 
form without coupons in denominations of $25 and any integral multiple 
thereof.] [This Global Security is exchangeable for Subordinated Debentures 
in definitive form only under certain limited circumstances set forth in the 
Indenture.  Subordinated Debentures of this series so issued are issuable only 
in registered form without coupons in denominations of $25 and any integral 
multiple thereof.]  As provided in the Indenture and subject to certain 
limitations [herein and] therein 


                                     -26-


set forth, Subordinated Debentures of this series [so issued] are 
exchangeable for a like aggregate principal amount of Subordinated Debentures 
of this series of a different authorized denomination, as requested by the 
holder surrendering the same.

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

                                       
                                  ARTICLE IX

                  ORIGINAL ISSUE OF SUBORDINATED DEBENTURES

     SECTION 9.1.  ORIGINAL ISSUE OF SUBORDINATED DEBENTURES. Subordinated 
Debentures in the aggregate principal amount of $154,640,000 may, upon 
execution of this First Supplemental Indenture, be executed by the Company 
and delivered to the Trustee for authentication, and the Trustee shall 
thereupon authenticate and deliver said Subordinated Debentures to or upon 
the written order of the Company, signed by its Chairman, its President, or 
any Vice President and its Treasurer or an Assistant Treasurer, without any 
further action by the Company.


                                  ARTICLE X
                                       
                                 MISCELLANEOUS

     SECTION 10.1.  RATIFICATION OF INDENTURE.  The Indenture, as 
supplemented by this First Supplemental Indenture, is in all respects 
ratified and confirmed, and this First Supplemental Indenture shall be deemed 
part of the Indenture in the manner and to the extent herein and therein 
provided.

     SECTION 10.2.  TRUSTEE NOT RESPONSIBLE FOR RECITALS.  The recitals 
herein contained are made by the Company and not by the Trustee, and the 
Trustee assumes no responsibility for the correctness thereof.  The Trustee 
makes no representation as to the validity or sufficiency of this First 
Supplemental Indenture.

     SECTION 10.3.  GOVERNING LAW.  This First Supplemental Indenture and 
each Subordinated Debenture shall be deemed to be a contract made under the 
internal laws of the State of New York, and for all purposes shall be 
construed in accordance with the laws of said State.


                                     -27-


     SECTION 10.4.  SEPARABILITY.  In case any one or more of the provisions 
contained in this First Supplemental Indenture or in the Subordinated 
Debentures shall for any reason be held to be invalid, illegal or 
unenforceable in any respect, such invalidity, illegality or unenforceability 
shall not affect any other provisions of this First Supplemental Indenture or 
of the Subordinated Debentures, but this First Supplemental Indenture and the 
Subordinated Debentures shall be construed as if such invalid or illegal or 
unenforceable provision had never been contained herein or therein.

     SECTION 10.5.  COUNTERPARTS.  This First Supplemental 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.


                                     -28-


     IN WITNESS WHEREOF, the parties hereto have caused this First 
Supplemental Indenture to be duly executed, and their respective corporate 
seals to be hereunto affixed and attested, on the date or dates indicated in 
the acknowledgments and as of the day and year first above written.


                              TELEPHONE AND DATA SYSTEMS, INC.


                              By:
                                 ----------------------------------
                                   Title:

[Corporate Seal]

Attest:


     Secretary


                              THE FIRST NATIONAL BANK OF CHICAGO,
                              not in its individual capacity
                              but solely as Trustee


                              By:
                                 ----------------------------------
                                   Title:


[Corporate Seal]

Attest:


     Title:



STATE OF ILLINOIS )
COUNTY OF COOK    ) ss:


     On the    day of _____, 1997, before me personally came ______________, 
to me known, who, being by me   duly sworn, did depose and say that he is a 
______________ of TELEPHONE AND DATA SYSTEMS, INC., one of the corporations 
described in and which executed the above instrument; that he knows the 
corporate seal of said corporation; that the seal affixed to the said 
instrument is such corporate seal; that it was so affixed by authority of the 
Board of Directors of said corporation, and that he signed his name thereto 
by like authority.


                         NOTARY PUBLIC

[seal]                   Commission expires



STATE OF ILLINOIS   )
COUNTY OF COOK      ):



          On the    day of April, 1997, before me personally came ____________,
to me known, who, being by me duly sworn, did depose and say that he is the
____________________ of THE FIRST NATIONAL BANK OF CHICAGO, one of the
corporations described in and which executed the above instrument; that he
knows the corporate seal of said corporation; that the seal affixed to the said
instrument is such corporate seal; that it was so affixed by authority of the
Board of Directors of said corporation, and that he signed his name thereto by
like authority.


                         NOTARY PUBLIC

[seal]                   Commission expires