EXHIBIT 1.2
                                  -----------

                         REGISTRATION RIGHTS AGREEMENT

                         Dated as of November 12, 1997

                                 by and among

                              VIALOG CORPORATION

                           THE SUBSIDIARY GUARANTORS
                                 named herein

                                      and

                          JEFFERIES & COMPANY, INC.,
                             as Initial Purchaser

                           ________________________

                                  $75,000,000

                        12 3/4 % SENIOR NOTES DUE 2001

 
                               TABLE OF CONTENTS
                               -----------------
                                        
 
                                                                          
1.   DEFINITIONS..........................................................   1

2.   EXCHANGE OFFER.......................................................   4

3.   SHELF REGISTRATION...................................................   7

4.   ADDITIONAL INTEREST..................................................   9

5.   REGISTRATION PROCEDURES..............................................  10

6.   REGISTRATION EXPENSES................................................  18

7.   INDEMNIFICATION......................................................  19

8.   RULES 144 AND 144A...................................................  22

9.   UNDERWRITTEN REGISTRATION............................................  22

10.  MISCELLANEOUS........................................................  24

     (a)  No Inconsistent Agreements......................................  24

     (b)  Adjustments Affecting Registrable Notes.........................  24

     (c)  Amendments and Waivers..........................................  24

     (d)  Notices.........................................................  24

     (e)  Successors and Assigns..........................................  26

     (f)  Counterparts....................................................  26

     (g)  Headings........................................................  26

     (h)  Governing Law...................................................  26

     (i)  Severability....................................................  26
 

                                       i

 
 
                                                                         
     (j)  Notes Held by the Issuers or Their Affiliates...................  26

     (k)  Third Party Beneficiaries.......................................  27

     (1)  Entire Agreement................................................  27
 

                                      ii

 
                         REGISTRATION RIGHTS AGREEMENT

     This Registration Rights Agreement (the "Agreement") is made and entered
                                              ---------                      
into as of November 12, 1997, by and among VIALOG Corporation, a Massachusetts
corporation (the "Company"), each of the subsidiaries of the Company listed on
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the signature pages hereto (collectively, the "Subsidiary Guarantors"), and
                                               ---------------------       
Jefferies & Company, Inc. (the "Initial Purchaser").
                                -----------------   

     This Agreement is entered into in connection with the Purchase Agreement,
dated as of November 12, 1997, by and among the Company, the Subsidiary
Guarantors, and the Initial Purchaser (the "Purchase Agreement") which provides
                                            ------------------                 
for, among other things, the issuance and sale to the Initial Purchaser of
75,000 units (the "Units") consisting of an aggregate of $75,000,000 aggregate
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principal amount of the Company's 12 3/4% Senior Notes due 2001, Series A (the
                                                                              
"Notes") and 75,000 warrants to purchase an aggregate of 756,645 shares of
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common stock, par value $.01 per share, of the Company.  In order to induce the
Initial Purchaser to enter into the Purchase Agreement, the Company and the
Subsidiary Guarantors have agreed to provide the registration rights set forth
in this Agreement for the benefit of the Initial Purchaser and their direct and
indirect transferees and assigns.  The execution and delivery of this Agreement
is a condition to the Initial Purchaser's obligation to purchase the Units under
the Purchase Agreement.  The Company and the Subsidiary Guarantors are
collectively referred to herein as the "Issuers."
                                        -------  

The parties hereby agree as follows:

1.   Definitions
     -----------

     As used in this Agreement, the following terms shall have the following
meanings:

     Additional Interest:  See Section 4(a).
     -------------------                    

     Advice:  See the last paragraph of Section 5.
     ------                                       

     Agreement:  See the first introductory paragraph to this Agreement.
     ---------                                                          

     Applicable Period:  See Section 2(b).
     -----------------                    

     Business Day: Means any day other than a Saturday, Sunday or any other day
     ------------                                                              
on which banking institutions in The City of New York or Boston, Massachusetts
are required or authorized by law or other governmental action to be closed.

     Company:  Has the meaning ascribed to such term in the preamble of this
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Agreement and shall also include the Company's successors and assigns.

     Effectiveness Date:  The 120th day after the Issue Date.
     ------------------                                      

     Effectiveness Period:  See Section 3(a).
     --------------------                    

 
     Event Date:  See Section 4(b).
     ----------                    

     Exchange Act:  The Securities Exchange Act of 1934, as amended, and the
     ------------                                                           
rules and regulations of the SEC promulgated thereunder.

     Exchange Notes:  See Section 2(a).
     --------------                    

     Exchange Offer:  See Section 2(a).
     --------------                    

     Exchange Registration Statement:  See Section 2(a).
     -------------------------------                    

     Filing Date:  The 60th day after the Issue Date.
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     Holder:  Any registered holder of Registrable Notes.
     ------                                              

     Indemnified Person:  See Section 7(c).
     ------------------                    

     Indemnifying Person:  See Section 7(c).
     -------------------                    

     Indenture:  The Indenture, dated as of November 12, 1997, by and among the
     ---------                                                                 
Company, the Subsidiary Guarantors and State Street Bank and Trust Company, as
trustee, pursuant to which the Notes are being issued, as amended or
supplemented from time to time in accordance with the terms thereof.

     Initial Purchaser:  See the first introductory paragraph to this Agreement.
     -----------------                                                          

     Initial Shelf Registration:  See Section 3(a).
     --------------------------                    

     Inspectors:  See Section 5(o).
     ----------                    

     Issue Date:  The date on which the Units were sold to the Initial Purchaser
     ----------                                                                 
pursuant to the Purchase Agreement.

     Issuers:  The collective reference to the Company and the Subsidiary
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Guarantors.

     NASD:  National Association of Securities Dealers, Inc.
     ----                                                   

     Notes:  See the second introductory paragraph to this Agreement.
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     Participant:  See Section 7(a).
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     Participating, Broker-Dealer:  See Section 2(b).
     ----------------------------                    

     Person:  An individual, trustee, corporation, partnership, limited
     ------                                                            
liability company, joint stock company, trust, unincorporated association, joint
venture, union, business association, firm, governmental agency or political
subdivision thereof or other legal entity.

     Private Exchange:  See Section 2(b).
     ----------------                    

                                      -2-

 
     Private Exchange Notes:  See Section 2(b).
     ----------------------                    

     Prospectus:  The prospectus included in any Registration Statement
     ----------                                                        
(including, without limitation, any prospectus subject to completion and a
prospectus that includes any information previously omitted from a prospectus
filed as part of an effective registration statement in reliance upon Rule 430A
promulgated under the Securities Act), as amended or supplemented by any
prospectus supplement, with respect to the terms of the offering of any portion
of the Registrable Notes covered by such Registration Statement, and all other
amendments and supplements to such prospectus, including post-effective
amendments, and all material incorporated by reference or deemed to be
incorporated by reference in such prospectus.

     Purchase Agreement:  See the second introductory paragraph to this
     ------------------                                                
Agreement.

     Records:  See Section 5(o).
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     Registrable Notes:  Each Note upon original issuance thereof and at all
     -----------------                                                      
times subsequent thereto, each Exchange Note as to which Section 2(c)(iv) hereof
is applicable upon original issuance thereof and at all times subsequent thereto
and each Private Exchange Note upon original issuance thereof and at all times
subsequent thereto, until, in the case of any such Note, Exchange Note or
Private Exchange Note, as the case may be, the earliest to occur of (i) a
Registration Statement (other than, with respect to any Exchange Note as to
which Section 2(c)(iv) hereof is applicable, the Exchange Registration
Statement) covering such Note, Exchange Note or Private Exchange Note, as the
case may be, has been declared effective under the Securities Act and such Note,
Exchange Note or Private Exchange Note, as the case may be, has been disposed of
in accordance with such effective Registration Statement, (ii) such Note,
Exchange Note or Private Exchange Note, as the case may be, is sold in
compliance with Rule 144 (or any similar provision then in force, but not Rule
144A) promulgated under the Securities Act, (iii) in the case of any Note, such
Note has been exchanged pursuant to the Exchange Offer for an Exchange Note or
Exchange Notes which may be resold without restriction under state and federal
securities laws, or (iv) such Note, Exchange Note or Private Exchange Note, as
the case may be, ceases to be outstanding for purposes of the Indenture.

     Registration Statement:  Any registration statement of the Issuers filed
     ----------------------                                                  
with the SEC under the Securities Act, including, but not limited to, the
Exchange Registration Statement, that covers any of the Registrable Notes
pursuant to the provisions of this Agreement and all amendments and supplements
to such registration statement, including post-effective amendments, in each
case including the Prospectus contained therein, all exhibits thereto and all
material incorporated by reference or deemed to be incorporated by reference in
such registration statement.

     Rule 144:  Rule 144 promulgated under the Securities Act, as such Rule may
     --------                                                                  
be amended from time to time, or any similar rule (other than Rule 144A) or
regulation hereafter adopted by the SEC providing for offers and sales of
securities made in compliance therewith resulting in offers and sales by
subsequent holders that are not affiliates of an issuer of such 

                                      -3-

 
securities being free of the registration and prospectus delivery requirements
of the Securities Act.

     Rule 144A:  Rule 144A promulgated under the Securities Act, as such Rule
     ---------                                                               
may be amended from time to time, or any similar rule (other than Rule 144) or
regulation hereafter adopted by the SEC.

     Rule 415:  Rule 415 promulgated under the Securities Act, as such Rule may
     --------                                                                  
be amended from time to time, or any similar rule or regulation hereafter
adopted by the SEC.

     SEC:  The Securities and Exchange Commission.
     ---                                          

     Securities Act:  The Securities Act of 1933, as amended from time to time,
     --------------                                                            
and the rules and regulations of the SEC promulgated thereunder.

     Shelf Notice:  See Section 2(c).
     ------------                    

     Shelf Registration:  See Section 3(b).
     ------------------                    

     Subsequent Shelf Registration:  See Section 3(b).
     -----------------------------                    

     Subsidiary Guarantors: See the first introductory paragraph to this
     ---------------------                                              
Agreement.

     TIA:  The Trust Indenture Act of 1939, as amended.
     ---                                               

     Trustee:  The Trustee under the Indenture and, if existent, the trustee
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under any indenture governing the Exchange Notes and Private Exchange Notes (if
any).

     Underwritten registration or underwritten offering:  A registration in
     --------------------------------------------------                    
which securities of one or more of the issuers are sold to an underwriter for
reoffering to the public.

2.   Exchange Offer
     --------------

     (a)  Each of the Issuers agrees to file with the SEC no later than the
Filing Date, an offer to exchange (the "Exchange Offer") any and all of the
                                        --------------                     
Registrable Notes (other than Private Exchange Notes, if any) for a like
aggregate principal amount of debt securities of the Company, guaranteed by the
Subsidiary Guarantors, which are identical in all material respects to the Notes
(the "Exchange Notes") (and which are entitled to the benefits of the Indenture
      --------------                                                           
or a trust indenture which is identical in all material respects to the
Indenture (other than such changes to the Indenture or any such identical trust
indenture as are necessary to comply with any requirements of the SEC to effect
or maintain the qualification thereof under the TIA) and which, in either case,
has been qualified under the TIA), except that the Exchange Notes shall have
been registered pursuant to an effective Registration Statement under the
Securities Act and shall contain no restrictive legend thereon.  The Exchange
Offer shall be registered under the Securities Act on the appropriate form (the
"Exchange Registration Statement") and shall comply with all applicable tender
 -------------------------------                                              
offer rules and regulations under the Exchange Act.  Each of the Issuers agrees
to use its best efforts to (x) cause the 

                                      -4-

 
Exchange Registration Statement to be declared effective under the Securities
Act on or before the Effectiveness Date; (y) keep the Exchange Offer open for at
least 30 calendar days (or longer if required by applicable law) after the date
that notice of the Exchange Offer is mailed to Holders; and (z) consummate the
Exchange Offer on or prior to the 45th day following the date on which the
Exchange Registration Statement is declared effective. If after such Exchange
Registration Statement is initially declared effective by the SEC, the Exchange
Offer or the issuance of the Exchange Notes thereunder is interfered with by any
stop order, injunction or other order or requirement of the SEC or any other
governmental agency or court, such Exchange Registration Statement shall be
deemed not to have become effective for purposes of this Agreement.  Each Holder
who participates in the Exchange Offer will be required to represent that any
Exchange Notes received by it will be acquired in the ordinary course of its
business, that at the time of the consummation of the Exchange Offer such Holder
will have no arrangement or understanding with any Person to participate in the
distribution of the Exchange Notes in violation of the provisions of the
Securities Act, and that such Holder is not an affiliate of any of the Issuers
within the meaning of the Securities Act.  Upon consummation of the Exchange
Offer in accordance with this Section 2, the provisions of this Agreement shall
continue to apply, mutatis mutandis, solely with respect to Registrable Notes
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that are Private Exchange Notes and Exchange Notes held by Participating Broker-
Dealers, and the Issuers shall have no further obligation to register
Registrable Notes (other than Private Exchange Notes and other than in respect
of any Exchange Notes as to which clause 2(c)(iv) hereof applies) pursuant to
Section 3 of this Agreement.

     (b)  The Issuers shall include within the Prospectus contained in the
Exchange Registration Statement a section entitled "Plan of Distribution,"
reasonably acceptable to the Initial Purchaser, which shall contain a summary
statement of the positions taken or policies made by the staff of the SEC with
respect to the potential "underwriter" status of any broker-dealer that is the
beneficial owner (as defined in Rule 13d-3 under the Exchange Act) of Exchange
Notes received by such broker-dealer in the Exchange Offer (a "Participating
                                                               -------------
Broker-Dealer"), whether such positions or policies have been publicly
- -------------                                                         
disseminated by the staff of the SEC or such positions or policies, in the
judgment of the Initial Purchaser, represent the prevailing views of the staff
of the SEC.  Such "Plan of Distribution" section shall also allow, to the extent
permitted by applicable policies and regulations of the SEC, the use of the
Prospectus by all Persons subject to the prospectus delivery requirements of the
Securities Act, including, to the extent so permitted, all Participating Broker-
Dealers, and include a statement describing the manner in which Participating
Broker-Dealers may resell the Exchange Notes.

     Each of the Issuers shall use its best efforts to keep the Exchange
Registration Statement effective and to amend and supplement the Prospectus
contained therein, in order to permit such Prospectus to be lawfully delivered
by all Persons subject to the prospectus delivery requirements of the Securities
Act for such period of time as such Persons must comply with such requirements
in order to resell the Exchange Notes (the "Applicable Period").
                                            -----------------   

                                      -5-

 
     If, upon consummation of the Exchange Offer, any Initial Purchaser holds
any Notes acquired by it and having the status of an unsold allotment in the
initial distribution, the Company upon the request of such Initial Purchaser
shall, simultaneously with the delivery of the Exchange Notes in the Exchange
Offer, issue and deliver to such Initial Purchaser, in exchange (the "Private
                                                                      -------
Exchange") for the Notes held by such Initial Purchaser, a like principal amount
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of debt securities of the Company, guaranteed by the Subsidiary Guarantors, that
are identical in all material respects to the Exchange Notes except for the
existence of restrictions on transfer thereof under the Securities Act and
securities laws of the several states of the U.S. (the "Private Exchange Notes")
                                                        ----------------------
(and which are issued pursuant to the same indenture as the Exchange Notes); 
provided, however, that the Issuers shall not be required to effect such
- --------  -------
exchange if, in the written opinion of counsel for the Issuers (a copy of which
shall be delivered to the Initial Purchaser and any Holder affected thereby),
such exchange cannot be effected without registration under the Securities Act.
The Private Exchange Notes shall bear the same CUSIP number as the Exchange
Notes.

     Interest on the Exchange Notes and the Private Exchange Notes will accrue
from (A) the later of (i) the last interest payment date on which interest was
paid on the Notes surrendered in exchange therefor or (ii) if the Notes are
surrendered for exchange on a date in a period which includes the record date
for an interest payment date to occur on or after the date of such exchange and
as to which interest will be paid, the date of such interest payment date or (B)
if no interest has been paid on the Notes, from the Issue Date.

     In connection with the Exchange Offer, the Issuers shall:

          (1) mail to each Holder a copy of the Prospectus forming part of the
     Exchange Registration Statement, together with an appropriate letter of
     transmittal and related documents;

          (2) utilize the services of a depositary for the Exchange Offer with
     an address in the Borough of Manhattan, The City of New York, which may be
     the Trustee or an affiliate thereof;

          (3) permit Holders to withdraw tendered Registrable Notes at any time
     prior to the close of business, New York time, on the last business day on
     which the Exchange Offer shall remain open; and

          (4) otherwise comply in all material respects with all applicable
     laws.

     As soon as practicable after the close of the Exchange Offer or the Private
Exchange, as the case may be, the Issuers shall:

          (1) accept for exchange all Registrable Notes validly tendered and not
     validly withdrawn pursuant to the Exchange Offer or the Private Exchange,
     as the case may be;

                                      -6-

 
          (2) deliver to the Trustee for cancellation all Registrable Notes so
     accepted for exchange; and

          (3) cause the Trustee to authenticate and deliver promptly to each
     Holder tendering such Registrable Notes, Exchange Notes or Private Exchange
     Notes, as the case may be, equal in principal amount to the Notes of such
     Holder so accepted for exchange.

     The Exchange Offer and the Private Exchange shall not be subject to any
conditions other than the following: (i) the Exchange Offer or the Private
Exchange, as the case may be, does not violate applicable law or any applicable
interpretation of the staff of the SEC, (ii) no action or proceeding is
instituted or threatened in any court or by any governmental agency which might
materially impair the ability of the Issuers to proceed with the Exchange Offer
or the Private Exchange and (iii) all governmental approvals have been obtained,
which approvals the Issuers reasonably deem necessary for the consummation of
the Exchange Offer or Private Exchange.

     The Exchange Notes and the Private Exchange Notes may be issued under (i)
the Indenture or (ii) an indenture identical in all material respects to the
Indenture, which in either event will provide that the Exchange Notes will not
be subject to the transfer restrictions set forth in the Indenture and that the
Exchange Notes, the Private Exchange Notes and the Notes, if any, will vote and
consent together on all matters as one class and that none of the Exchange
Notes, the Private Exchange Notes or the Notes, if any, will have the right to
vote or consent as a separate class on any matter.

     (c)  If, (i) because of any change in law or in currently prevailing
interpretations of the staff of the SEC, the Issuers are not permitted to effect
an Exchange Offer, (ii) the Exchange Offer is not consummated within 150 days of
the Issue Date, (iii) any holder of Private Exchange Notes so requests in
writing to the Issuers within 120 days after the consummation of the Exchange
Offer or (iv) in the case of any Holder that participates in the Exchange Offer,
such Holder does not receive Exchange Notes on the date of the exchange that may
be sold without restriction under state and federal securities laws (other than
due solely to the status of such Holder as an affiliate of any of the Issuers
within the meaning of the Securities Act) and so notifies the Company within 60
days after such Holder first becomes aware of such restrictions and providing a
reasonable basis for its conclusions, in the case of each of clauses (i)-(iv),
then the Issuers shall promptly deliver to the Holders and the Trustee written
notice thereof (the "Shelf Notice") and, at its cost, shall file a Shelf
                     ------------                                       
Registration pursuant to Section 3.

3.   Shelf Registration
     ------------------

     If a Shelf Notice is delivered as contemplated by Section 2(c), then:

     (a)  Shelf Registration.  The Issuers shall as promptly as practicable file
          ------------------                                                    
with the SEC a Registration Statement for an offering to be made on a continuous
basis pursuant to 

                                      -7-

 
Rule 415 covering all of the Registrable Notes (the "Initial Shelf
                                                     -------------
Registration"). If the Issuers shall not have yet filed the Exchange
- ------------
Registration Statement, each of the Issuers shall use its best efforts to file
with the SEC the Initial Shelf Registration on or prior to the Filing Date and
shall use its best efforts to cause such Initial Shelf Registration to be
declared effective under the Securities Act on or prior to the Effectiveness
Date. Otherwise, each of the Issuers shall use its best efforts to file with the
SEC the Initial Shelf Registration within 30 days of the delivery of the Shelf
Notice and shall use its best efforts to cause such Shelf Registration to be
declared effective under the Securities Act as promptly as practicable
thereafter. The Initial Shelf Registration shall be on Form S-1 or another
appropriate form permitting registration of such Registrable Notes for resale by
Holders in the manner or manners designated by them (including, without
limitation, one or more underwritten offerings). The Issuers shall not permit
any securities other than the Registrable Notes to be included in any Shelf
Registration (as defined below). The Issuers shall use their best efforts to
keep the Initial Shelf Registration continuously effective under the Securities
Act until the date which is [36] months from the effective date of such Initial
Shelf Registration (subject to extension pursuant to the last paragraph of 
Section 5 hereof) (the "Effectiveness Period"), or such shorter period ending
                        -------------------- 
when (i) all Registrable Notes covered by the Initial Shelf Registration have
been sold in the manner set forth and as contemplated in the Initial Shelf
Registration or (ii) a Subsequent Shelf Registration (as defined below) covering
all of the Registrable Notes has been declared effective under the Securities
Act.

     (b) Subsequent Shelf Registration.  If the Initial Shelf Registration or
         -----------------------------                                       
any Subsequent Shelf Registration ceases to be effective for any reason at any
time during the Effectiveness Period (other than because of the sale of all of
the securities registered thereunder), each of the Issuers shall use its best
efforts to obtain the prompt withdrawal of any order suspending the
effectiveness thereof, and in any event shall within 45 days of such cessation
of effectiveness amend such Shelf Registration in a manner to obtain the
withdrawal of the order suspending the effectiveness thereof, or file an
additional "shelf" Registration Statement pursuant to Rule 415 covering all of
the Registrable Notes (a "Subsequent Shelf Registration").  If a Subsequent
                          -----------------------------                    
Shelf Registration is filed, each of the Issuers shall use its best efforts to
cause the Subsequent Shelf Registration to be declared effective as soon as
practicable after such filing and to keep such Subsequent Shelf Registration
continuously effective for a period equal to the number of days in the
Effectiveness Period less the aggregate number of days during which the Initial
Shelf Registration or any Subsequent Shelf Registration was previously
continuously effective.  As used herein the term "Shelf Registration" means the
                                                  ------------------           
Initial Shelf Registration and any Subsequent Shelf Registration.

     (c) Supplements and Amendments.  The Issuers shall promptly supplement and
         --------------------------                                            
amend any Shelf Registration if required by the rules, regulations or
instructions applicable to the registration form used for such Shelf
Registration, if required by the Securities Act, or if reasonably requested by
the Holders of a majority in aggregate principal amount of the Registrable Notes
covered by such Shelf Registration or by any underwriter of such Registrable
Notes.

                                      -8-

 
4.   Additional Interest
     -------------------

     (a)  The Issuers and the Initial Purchaser agree that the Holders of
Registrable Notes will suffer damages if the Issuers fail to fulfill their
obligations under Section 2 or Section 3 hereof and that it would not be
feasible to ascertain the extent of such damages with precision.  Accordingly,
the Issuers, jointly and severally, agree to pay, as liquidated damages,
additional interest on the Notes ("Additional Interest") under the circumstances
                                   -------------------                          
and to the extent set forth below (each of which shall be given independent
effect):

          (i)   if the Exchange Registration Statement has not been filed on or
     prior to the Filing Date, then commencing on the day after the Filing Date,
     Additional Interest shall accrue on the Notes over and above the stated
     interest at a rate of 0.50% per annum for the first 90 days immediately
     following the Filing Date, such Additional Interest rate increasing by an
     additional 0.50% per annum at the beginning of each subsequent 90-day
     period;

          (ii)  if the Exchange Registration Statement is not declared effective
     on or prior to the Effectiveness Date, then commencing on the day after the
     Effectiveness Date, Additional Interest shall accrue on the Notes over and
     above the stated interest at a rate of 0.50% per annum for the first 90
     days immediately following the day after the Effectiveness Date, such
     Additional Interest rate increasing by an additional 0.50% per annum at the
     beginning of each subsequent 90-day period; and

          (iii) if (A) the Issuers have not exchanged Exchange Notes for all
     Notes validly tendered in accordance with the terms of the Exchange Offer
     on or prior to the 45th day after the date on which the Exchange
     Registration Statement is declared effective or (B) the Initial Shelf
     Registration, if required to be filed hereunder, is not declared effective
     on or prior to the 120th day after the Issue Date or (C) if applicable, a
     Shelf Registration has been declared effective and such Shelf Registration
     ceases to be effective at any time during the Effectiveness Period, then
     Additional Interest shall accrue on the Notes over and above the stated
     interest at a rate of 0.50% per annum for the first 90 days commencing on
     (x) the 45th day after the date on which the Exchange Registration
     Statement is declared effective, in the case of (A) or (B) above, or (y)
     the day such Shelf Registration ceases to be effective in the case of (C)
     above, such Additional Interest rate increasing by an additional 0.50% per
     annum at the beginning of each such subsequent 90-day period;

provided, however, that the Additional Interest rate on the Notes may not
- --------  -------                                                        
exceed at any one time in the aggregate 1.5% per annum; and provided further,
                                                            -------- ------- 
that (1) upon the filing of the Exchange Registration Statement (in the case of
(i) above), (2) upon the effectiveness of the Exchange Registration Statement
(in the case of (ii) above), or (3) upon the exchange of Exchange Notes for all
Notes tendered (in the case of (iii)(A) above), upon the effectiveness of the
Initial Shelf Registration (in the case of (iii)(B) above) or upon the
effectiveness of a Shelf Registration which had ceased to remain effective (in
the case of (iii)(C) above),

                                      -9-

 
Additional Interest on the Notes as a result of such clause (or the relevant
subclause thereof), as the case may be, shall cease to accrue.

     (b) The Issuers shall notify the Trustee within one business day after each
and every date on which an event occurs in respect of which Additional Interest
is required to be paid (an "Event Date ").  Any amounts of Additional Interest
                            ----------                                        
due pursuant to (a)(i), (a)(ii) or (a)(iii) of this Section 4 will be payable
semi-annually by wire transfer of immediately available funds or by federal
funds check on each regular interest payment date specified in the Indenture (to
the Holders of record on the regular record date therefor (specified in the
Indenture) immediately preceding such dates), commencing with the first such
regular interest payment date occurring after any such Additional Interest
commences to accrue, subject to Section 2.17 of the Indenture with respect to
defaulted interest.  The amount of Additional Interest will be determined by
multiplying the applicable Additional Interest rate by the principal amount of
the Notes, multiplied by a fraction, the numerator of which is the number of
days such Additional Interest rate was applicable during such period (determined
on the basis of a 360-day year comprised of twelve 30-day months and, in the
case of a partial month, the actual number of days elapsed), and the denominator
of which is 360.

5.   Registration Procedures
     -----------------------

     In connection with the filing of any Registration Statement pursuant to
Section 2 or 3 hereof, the Issuers shall effect such registrations to permit the
sale of such securities covered thereby in accordance with the intended method
or methods of disposition thereof, and pursuant thereto and in connection with
any Registration Statement filed by the Issuers hereunder, the Issuers shall:

          (a) Prepare and file with the SEC prior to the Filing Date, the
     Exchange Registration Statement or if the Exchange Registration Statement
     is not filed because of the circumstances contemplated by Section 2(c)(i),
     a Shelf Registration as prescribed by Section 2 or 3, and use their best
     efforts to cause each such Registration Statement to become effective and
     remain effective as provided herein; provided that, if (1) a Shelf
                                          --------                     
     Registration is filed pursuant to Section 3, or (2) a Prospectus contained
     in an Exchange Registration Statement filed pursuant to Section 2 is
     required to be delivered under the Securities Act by any Participating
     Broker-Dealer who seeks to sell Exchange Notes during the Applicable
     Period, before filing any Registration Statement or Prospectus or any
     amendments or supplements thereto, the Issuers shall, if requested, furnish
     to and afford the Holders of the Registrable Notes to be registered
     pursuant to such Shelf Registration or each such Participating Broker-
     Dealer, as the case may be, covered by such Registration Statement, their
     counsel and the managing underwriters, if any, a reasonable opportunity to
     review copies of all such documents (including copies of any documents to
     be incorporated by reference therein and all exhibits thereto) proposed to
     be filed (in each case at least five business days prior to such filing).
     The Issuers shall not file any such Registration Statement or Prospectus or
     any amendments or supplements thereto if the Holders of a majority in
     aggregate principal amount of the Registrable Notes covered by such
     Registration Statement, or any such 

                                      -10-

 
     Participating Broker-Dealer, as the case may be, their counsel, or the
     managing underwriters, if any, shall reasonably object.

          (b) Prepare and file with the SEC such amendments and post-effective
     amendments to each Shelf Registration or Exchange Registration Statement,
     as the case may be, as may be necessary to keep such Registration Statement
     continuously effective for the Effectiveness Period or the Applicable
     Period, as the case may be; cause the related Prospectus to be supplemented
     by any Prospectus supplement required by applicable law, and as so
     supplemented to be filed pursuant to Rule 424 (or any similar provisions
     then in force) promulgated under the Securities Act; and comply with the
     provisions of the Securities Act and the Exchange Act applicable to it with
     respect to the disposition of all securities covered by such Registration
     Statement as so amended or in such Prospectus as so supplemented and with
     respect to the subsequent resale of any securities being sold by a
     Participating Broker-Dealer covered by any such Prospectus.  The Issuers
     shall be deemed not to have used their best efforts to keep a Registration
     Statement effective during the Applicable Period if they voluntarily take
     any action that would result in selling Holders of the Registrable Notes
     covered thereby or Participating Broker-Dealers seeking to sell Exchange
     Notes not being able to sell such Registrable Notes or such Exchange Notes
     during that period unless such action is required by applicable law or
     unless the Issuers comply with this Agreement, including, without
     limitation, the provisions of paragraph 5(k) hereof and the last paragraph
     of this Section 5.

          (c) If (1) a Shelf Registration is filed pursuant to Section 3, or (2)
     a Prospectus contained in an Exchange Registration Statement filed pursuant
     to Section 2 is required to be delivered under the Securities Act by any
     Participating Broker-Dealer who seeks to sell Exchange Notes during the
     Applicable Period from whom the Company has received written notice that it
     will be a Participating Broker-Dealer in the Exchange Offer, notify the
     selling Holders of Registrable Notes, or each such Participating Broker-
     Dealer, as the case may be, their counsel and the managing underwriters, if
     any, promptly (but in any event within two business days), and confirm such
     notice in writing, (i) when a Prospectus or any Prospectus supplement or
     post-effective amendment has been filed, and, with respect to a
     Registration Statement or any posteffective amendment, when the same has
     become effective (including in such notice a written statement that any
     Holder may, upon request, obtain, without charge, one conformed copy of
     such Registration Statement or post-effective amendment including financial
     statements and schedules, documents incorporated or deemed to be
     incorporated by reference and exhibits), (ii) of the issuance by the SEC of
     any stop order suspending the effectiveness of a Registration Statement or
     of any order preventing or suspending the use of any Prospectus or the
     initiation of any proceedings for that purpose, (iii) if at any time when a
     prospectus is required by the Securities Act to be delivered in connection
     with sales of the Registrable Notes the representations and warranties of
     the Issuers contained in any agreement (including any underwriting
     agreement) contemplated by Section 5(n) hereof cease to be true and
     correct, (iv) of the receipt by the Issuers of any notification with
     respect to the 

                                      -11-

 
     suspension of the qualification or exemption from qualification of a
     Registration Statement or any of the Registrable Notes or the Exchange
     Notes to be sold by any Participating Broker-Dealer for offer or sale in
     any jurisdiction, or the initiation or threatening of any proceeding for
     such purpose, (v) of the happening of any event, the existence of any
     condition or any information becoming known that makes any statement made
     in such Registration Statement or related Prospectus or any document
     incorporated or deemed to be incorporated therein by reference untrue in
     any material respect or suspension that requires the making of any changes
     in, or amendments or supplements to, such Registration Statement,
     Prospectus or documents so that, in the case of the Registration Statement,
     it will not contain any untrue statement of a material fact or omit to
     state any material fact required to be stated therein or necessary to make
     the statements therein not misleading, and that in the case of the
     Prospectus, it will not contain any untrue statement of a material fact or
     omit to state any material fact required to be stated therein or necessary
     to make the statements therein, in light of the circumstances under which
     they were made, not misleading, and (vi) of any of the Issuers' reasonable
     determination that a post-effective amendment to a Registration Statement
     would be appropriate.

          (d)  If (1) a Shelf Registration is filed pursuant to Section 3, or
     (2) a Prospectus contained in an Exchange Registration Statement filed
     pursuant to Section 2 is required to be delivered under the Securities Act
     by any Participating Broker-Dealer who seeks to sell Exchange Notes during
     the Applicable Period, use their best efforts to prevent the issuance of
     any order suspending the effectiveness of a Registration Statement or of
     any order preventing or suspending the use of a Prospectus or suspending
     the qualification (or exemption from qualification) of any of the
     Registrable Notes or the Exchange Notes to be sold by any Participating
     Broker-Dealer, for sale in any jurisdiction, and, if any such order is
     issued, to use their best efforts to obtain the withdrawal of any such
     order at the earliest possible date.

          (e)  If a Shelf Registration is filed pursuant to Section 3 and if
     requested by the managing underwriters, if any, or the Holders of a
     majority in aggregate principal amount of the Registrable Notes being sold
     in connection with an underwritten offering, (i) promptly as practicable
     incorporate in a prospectus supplement or post-effective amendment such
     information or revisions to information therein relating to such
     underwriters or selling Holders as the managing underwriters, if any, or
     such Holders or their counsel reasonably request to be included or made
     therein and (ii) make all required filings of such prospectus supplement or
     such post-effective amendment as soon as practicable after the Issuers have
     received notification of the matters to be incorporated in such prospectus
     supplement or post-effective amendment.

          (f)  If (1) a Shelf Registration is filed pursuant to Section 3, or
     (2) a Prospectus contained in an Exchange Registration Statement filed
     pursuant to Section 2 is required to be delivered under the Securities Act
     by any Participating Broker-Dealer who seeks to sell Exchange Notes during
     the Applicable Period, furnish to each selling Holder of Registrable Notes
     and to each such Participating Broker-Dealer who so

                                      -12-

 
     requests and to counsel and each managing underwriter, if any, without
     charge, one conformed copy of the Registration Statement or Registration
     Statements and each post-effective amendment thereto, including financial
     statements and schedules, and, if requested, all documents incorporated or
     deemed to be incorporated therein by reference and all exhibits.

          (g)  If (1) a Shelf Registration is filed pursuant to Section 3, or
     (2) a Prospectus contained in an Exchange Registration Statement filed
     pursuant to Section 2 is required to be delivered under the Securities Act
     by any Participating Broker-Dealer who seeks to sell Exchange Notes during
     the Applicable Period, deliver to each selling Holder of Registrable Notes
     or each such Participating Broker-Dealer, as the case may be, their
     respective counsel, and the underwriters, if any, without charge, as many
     copies of the Prospectus and each amendment or supplement thereto and any
     documents incorporated by reference therein as such Persons may reasonably
     request; and, subject to the last paragraph of this Section 5, each Issuer
     hereby consents to the use of such Prospectus and each amendment or
     supplement thereto by each of the selling Holders of Registrable Notes or
     each such Participating Broker-Dealer, as the case may be, and the
     underwriters or agents, if any, and dealers (if any), in connection with
     the offering and sale of the Registrable Notes covered by, or the sale by
     Participating Broker-Dealers of the Exchange Notes pursuant to, such
     Prospectus and any amendment or supplement thereto.

          (h)  Prior to any public offering of Registrable Notes or any delivery
     of a Prospectus contained in the Exchange Registration Statement by any
     Participating Broker-Dealer who seeks to sell Exchange Notes during the
     Applicable Period, to use their best efforts to register or qualify, and to
     cooperate with the selling Holders of Registrable Notes or each such
     Participating Broker-Dealer, as the case may be, the underwriters, if any,
     and their respective counsel in connection with the registration or
     qualification (or exemption from such registration or qualification) of
     such Registrable Notes or Exchange Notes, as the case may be, for offer and
     sale under the securities or Blue Sky laws of such jurisdictions within the
     United States as any selling Holder, Participating Broker-Dealer, or the
     managing underwriter or underwriters, if any, reasonably request in
     writing; provided that where Exchange Notes held by Participating Broker-
              --------     
     Dealers or Registrable Notes are offered other than through an underwritten
     offering, the Issuers agree to cause their counsel to perform Blue Sky
     investigations and file registrations and qualifications required to be
     filed pursuant to this Section 5(h); keep each such registration or
     qualification (or exemption therefrom) effective during the period such
     Registration Statement is required to be kept effective and do any and all
     other acts or things reasonably necessary or advisable to enable the
     disposition in such jurisdictions of the Exchange Notes held by
     Participating Broker-Dealers or the Registrable Notes covered by the
     applicable Registration Statement; provided that none of the Issuers shall
                                        --------   
     be required to (A) qualify generally to do business in any jurisdiction
     where it is not then so qualified, (B) take any action that would subject
     it to general service of process in any such jurisdiction where it is not

                                      -13-

 
     then so subject or (C) subject itself to taxation in excess of a nominal
     dollar amount in any such jurisdiction where it is not then so subject.

          (i) If a Shelf Registration is filed pursuant to Section 3, cooperate
     with the selling Holders of Registrable Notes and the managing underwriter
     or underwriters, if any, to facilitate the timely preparation and delivery
     of certificates representing Registrable Notes to be sold, which
     certificates shall not bear any restrictive legends and shall be in a form
     eligible for deposit with The Depository Trust Company; and enable such
     Registrable Notes to be in such denominations and registered in such names
     as the managing underwriter or underwriters, if any, or Holders may
     reasonably request.

          (j) Use their best efforts to cause the Registrable Notes covered by
     any Registration Statement to be registered with or approved by such
     governmental agencies or authorities as may be necessary to enable the
     seller or sellers thereof or the underwriters, if any, to consummate the
     disposition of such Registrable Notes, except as may be required solely as
     a consequence of the nature of such selling Holder's business, in which
     case each of the Issuers will cooperate in all reasonable respects with the
     filing of such Registration Statement and the granting of such approvals.

          (k) If (1) a Shelf Registration is filed pursuant to Section 3, or (2)
     a Prospectus contained in an Exchange Registration Statement filed pursuant
     to Section 2 is required to be delivered under the Securities Act by any
     Participating Broker-Dealer who seeks to sell Exchange Notes during the
     Applicable Period, upon the occurrence of any event contemplated by
     paragraph 5(c)(v) or 5(c)(vi) hereof, as promptly as practicable prepare
     and (subject to Section 5(a) hereof) file with the SEC, at the joint and
     several expense of each of the Issuers, a supplement or post-effective
     amendment to the Registration Statement or a supplement to the related
     Prospectus or any document incorporated or deemed to be incorporated
     therein by reference, or file any other required document so that, as
     thereafter delivered to the purchasers of the Registrable Notes being sold
     thereunder or to the purchasers of the Exchange Notes to whom such
     Prospectus will be delivered by a Participating Broker-Dealer, any such
     Prospectus will not contain an untrue statement of a material fact or omit
     to state a material fact required to be stated therein or necessary to make
     the statements therein, in light of the circumstances under which they were
     made, not misleading.

          (1) Use their best efforts to cause the Registrable Notes covered by a
     Registration Statement to be rated with the appropriate rating agencies, if
     so requested by the Holders of a majority in aggregate principal amount of
     Registrable Notes covered by such Registration Statement or the managing
     underwriter or underwriters, if any.

          (m) Prior to the effective date of the first Registration Statement
     relating to the Registrable Notes, (i) provide the Trustee with printed
     certificates for the 

                                      -14-

 
     Registrable Notes in a form eligible for deposit with The Depository Trust
     Company and (ii) provide a CUSIP number for the Registrable Notes.

          (n)  In connection with an underwritten offering of Registrable Notes
     pursuant to a Shelf Registration, enter into an underwriting agreement as
     is customary in underwritten offerings of debt securities similar to the
     Notes and take all such other actions as are reasonably requested by the
     managing underwriter or underwriters in order to expedite or facilitate the
     registration or the disposition of such Registrable Notes and, in such
     connection, (i) make such representations, warranties to, and covenants
     with, the underwriters, with respect to the business of the Issuers and
     their respective subsidiaries and the Registration Statement, Prospectus
     and documents, if any, incorporated or deemed to be incorporated by
     reference therein, in each case, as are customarily made by issuers to
     underwriters in underwritten offerings of debt securities similar to the
     Notes, and confirm the same in writing if and when requested; (ii) obtain
     the opinion of counsel to the Issuers and updates thereof in form and
     substance reasonably satisfactory to the managing underwriter or
     underwriters, addressed to the underwriters covering the matters
     customarily covered in opinions requested in underwritten offerings of debt
     securities similar to the Notes and such other matters as may be reasonably
     requested by underwriters; (iii) obtain "cold comfort" letters and updates
     thereof in form and substance reasonably satisfactory to the managing
     underwriter or underwriters from the independent certified public
     accountants of the Issuers (and, if necessary, any other independent
     certified public accountants of any subsidiary of any of the Issuers or of
     any business acquired by any of the Issuers for which financial statements
     and financial data are, or are required to be, included in the Registration
     Statement), addressed to each of the underwriters and the Holders of
     Registrable Notes, such letters to be in customary form and covering
     matters of the type customarily covered in "cold comfort" letters in
     connection with underwritten offerings of debt securities similar to the
     Notes and such other matters as reasonably requested by the managing
     underwriter or underwriters; and (iv) if an underwriting agreement is
     entered into, the same shall contain indemnification provisions and
     procedures no less favorable than those set forth in Section 7 hereof (or
     such other provisions and procedures acceptable to Holders of a majority in
     aggregate principal amount of Registrable Notes covered by such
     Registration Statement and the managing underwriter or underwriters or
     agents) with respect to all parties to be indemnified pursuant to said
     Section. The above shall be done at each closing under such underwriting
     agreement, or as and to the extent required thereunder.

          (o)  If (1) a Shelf Registration is filed pursuant to Section 3, or
     (2) a Prospectus contained in an Exchange Registration Statement filed
     pursuant to Section 2 is required to be delivered under the Securities Act
     by any Participating Broker-Dealer who seeks to sell Exchange Notes during
     the Applicable Period, make available for inspection by any selling Holder
     of such Registrable Notes being sold, or each such Participating Broker-
     Dealer, as the case may be, any underwriter participating in any such
     disposition of Registrable Notes, if any, and any attorney, accountant or
     other agent retained by any such selling Holder or each such Participating
     Broker-Dealer, as 

                                      -15-

 
     the case may be, or underwriter (collectively, the "Inspectors"), at the
                                                         ----------        
     offices where normally kept, during reasonable business hours, all
     financial and other records and pertinent corporate documents of the
     Issuers and their respective subsidiaries (collectively, the "Records") as
                                                                   -------
     shall be reasonably necessary to enable them to exercise any applicable due
     diligence responsibilities, and cause the officers, directors and employees
     of the Issuers and their respective subsidiaries to supply all information
     reasonably requested by any such Inspector in connection with such
     Registration Statement. Such Records shall be kept confidential by each
     Inspector and shall not be disclosed by the Inspectors unless (i) the
     disclosure of such Records is necessary to avoid or correct a material
     misstatement or omission in such Registration Statement or (ii) the release
     of such Records is ordered pursuant to a subpoena or other order from a
     court of competent jurisdiction. Each selling Holder of such Registrable
     Notes and each such Participating Broker-Dealer will be required to agree
     that information obtained by it as a result of such inspections shall be
     deemed confidential and shall not be used by it as the basis for any market
     transactions in the securities of the Issuers unless and until such is made
     generally available to the public. Each selling Holder of such Registrable
     Notes and each such Participating Broker-Dealer will be required to further
     agree that it will, upon learning that disclosure of such Records is sought
     in a court of competent jurisdiction, give notice to the Issuers and allow
     the Issuers to undertake appropriate action to prevent disclosure of the
     Records deemed confidential at their expense.

          (p)  Provide an indenture trustee for the Registrable Notes or the
     Exchange Notes, as the case may be, and cause the Indenture or the trust
     indenture provided for in Section 2(a), as the case may be, to be qualified
     under the TIA not later than the effective date of the Exchange Offer or
     the first Registration Statement relating to the Registrable Notes; and in
     connection therewith, cooperate with the terms under any such indenture and
     the Holders of the Registrable Notes, to effect such changes to such
     indenture as may be required for such indenture to be so qualified in
     accordance with the terms of the TIA; and execute, and use its best efforts
     to cause such trustee to execute, all documents as may be required to
     effect such changes, and all other forms and documents required to be filed
     with the SEC to enable such indenture to be so qualified in a timely
     manner.

          (q)  Comply with all applicable rules and regulations of the SEC and
     make generally available to its securityholders earnings statements
     satisfying the provisions of Section 11(a) of the Securities Act and Rule
     158 thereunder (or any similar rule promulgated under the Securities Act)
     no later than 45 days after the end of any 12-month period (or 90 days
     after the end of any 12-month period if such period is a fiscal year) (i)
     commencing at the end of any fiscal quarter in which Registrable Notes are
     sold to underwriters in a firm commitment or best efforts underwritten
     offering and (ii) if not sold to underwriters in such an offering,
     commencing on the first day of the first fiscal quarter of the Company
     after the effective date of a Registration Statement, which statements
     shall cover said 12-month periods.

                                      -16-

 
          (r)  Upon consummation of the Exchange Offer or a Private Exchange,
     obtain an opinion of counsel to the Issuers, in a form customary for
     underwritten transactions, addressed to the Trustee for the benefit of all
     Holders of Registrable Notes participating in the Exchange Offer or the
     Private Exchange, as the case may be, that the Exchange Notes or the
     Private Exchange Notes, as the case may be, and the related indenture
     constitute legally valid and binding obligations of each of the Issuers,
     enforceable against each of the Issuers in accordance with their respective
     terms subject to customary exceptions and qualifications.

          (s)  If the Exchange Offer or a Private Exchange is to be consummated,
     upon delivery of the Registrable Notes by Holders to the Issuers (or to
     such other Person as directed by the Issuers) in exchange for the Exchange
     Notes or the Private Exchange Notes, as the case may be, the Issuers shall
     mark, or caused to be marked, on such Registrable Notes that such
     Registrable Notes are being canceled in exchange for the Exchange Notes or
     the Private Exchange Notes, as the case may be; in no event shall such
     Registrable Notes be marked as paid or otherwise satisfied.

          (t)  Cooperate with each seller of Registrable Notes covered by any
     Registration Statement and each underwriter, if any, participating in the
     disposition of such Registrable Notes and their respective counsel in
     connection with any filings required to be made with the NASD.

          (u)  Use their best efforts to take all other steps reasonably
     necessary to effect the registration of the Registrable Notes covered by a
     Registration Statement contemplated hereby.

     The Issuers may require each seller of Registrable Notes as to which any
registration is being effected to furnish to the Issuers such information
regarding such seller and the distribution of such Registrable Notes as the
Issuers may, from time to time, reasonably request.  The Issuers may exclude
from such registration the Registrable Notes of any seller who fails to furnish
such information within a reasonable time after receiving such request.  Each
seller as to which any Shelf Registration Statement is being effected agrees to
furnish promptly to the Issuers all information required to be disclosed in
order to make the information previously furnished to the Issuers by such seller
not materially misleading.

     Each Holder of Registrable Notes and each Participating Broker-Dealer
agrees by acquisition of such Registrable Notes or Exchange Notes to be sold by
such Participating Broker-Dealer, as the case may be, that, upon receipt of any
notice from the Issuers of the happening of any event of the kind described in
Section 5(c)(ii), 5(c)(iv), 5(c)(v), or 5(c)(vi), such Holder will forthwith
discontinue disposition of such Registrable Notes covered by a Registration
Statement and such Participating Broker Dealer will forthwith discontinue
disposition of such Exchange Notes pursuant to any Prospectus and, in each case,
forthwith discontinue dissemination of such Prospectus until such Holder's or
Participating Broker-Dealer's receipt of the copies of the supplemented or
amended Prospectus contemplated by Section 5(k), or until it is advised in
writing (the "Advice") by the Issuers that the use of the
              ------

                                      -17-

 
applicable Prospectus may be resumed, and has received copies of any amendments
or supplements thereto and, if so directed by the Issuers, such Holder or
Participating Broker-Dealer, as the case may be, will deliver to the Issuers all
copies, other than permanent file copies, then in such Holder's or Participating
Broker-Dealer's possession, of the Prospectus covering such Registrable
Securities current at the time of the receipt of such notice. In the event the
Issuers shall give any such notice, each of the Effectiveness Period and the
Applicable Period shall be extended by the number of days during such periods
from and including the date of the giving of such notice to and including the
date when each seller of Registrable Notes covered by such Registration
Statement or Exchange Notes to be sold by such Participating Broker-Dealer, as
the case may be, shall have received (x) the copies of the supplemented or
amended Prospectus contemplated by Section 5(k) or (y) the Advice.

6.   Registration Expenses
     ---------------------

     (a)  All fees and expenses incident to the performance of or compliance
with this Agreement by the Issuers shall be borne by the Issuers, jointly and
severally, whether or not the Exchange Offer or a Shelf Registration is filed or
becomes effective, including, without limitation, (i) all registration and
filing fees (including, without limitation, (A) fees with respect to filings
required to be made with the NASD in connection with an underwritten offering
and (B) fees and expenses of compliance with state securities or Blue Sky laws
(including, without limitation, reasonable fees and disbursements of counsel in
connection with Blue Sky qualifications of the Registrable Notes or Exchange
Notes and determination of the eligibility of the Registrable Notes or Exchange
Notes for investment under the laws of such jurisdictions (x) where the holders
of Registrable Notes are located, in the case of the Exchange Notes, or (y) as
provided in Section 5(h) hereof, in the case of Registrable Notes or Exchange
Notes to be sold by a Participating Broker-Dealer during the Applicable
Period)), (ii) printing expenses, including, without limitation, expenses of
printing certificates for Registrable Notes or Exchange Notes in a form eligible
for deposit with The Depository Trust Company and of printing prospectuses if
the printing of prospectuses is requested by the managing underwriter or
underwriters, if any, or by the Holders of a majority in aggregate principal
amount of the Registrable Notes included in any Registration Statement or by any
Participating Broker-Dealer during the Applicable Period, as the case may be,
(iii) messenger, telephone and delivery expenses incurred in connection with the
Exchange Registration Statement and any Shelf Registration, (iv) fees and
disbursements of counsel for the Issuers and fees and disbursements of special
counsel for the sellers of Registrable Notes (subject to the provisions of
Section 6(b)), (v) fees and disbursements of all independent certified public
accountants referred to in Section 5(n)(iii) (including, without limitation, the
expenses of any special audit and "cold comfort" letters required by or incident
to such performance), (vi) rating agency fees, (vii) Securities Act liability
insurance, if the Issuers desire such insurance, (viii) fees and expenses of all
other Persons retained by the Issuers, (ix) internal expenses of the Issuers
(including, without limitation, all salaries and expenses of officers and
employees of the Issuers performing legal or accounting duties), (x) the expense
of any annual audit, (xi) the fees and expenses incurred in connection with the
listing of the securities to be registered on any securities exchange and (xii)
the expenses relating to printing, word processing and 

                                      -18-

 
distributing all Registration Statements, underwriting agreements, securities
sales agreements, indentures and any other documents necessary in order to
comply with this Agreement.

     (b)  In connection with any Shelf Registration hereunder, the Issuers,
jointly and severally, shall reimburse the Holders of the Registrable Notes
being registered in such registration for the fees and disbursements of not more
than one counsel (in addition to appropriate local counsel) chosen by the
Holders of a majority in aggregate principal amount of the Registrable Notes to
be included in such Shelf Registration and other out-of-pocket expenses of
Holders of Registrable Notes incurred in connection with the registration and
sale of Registrable Notes.

7.   Indemnification
     ---------------

     (a)  Each of the Issuers, jointly and severally, agrees to indemnify and
hold harmless each Holder of Registrable Notes and each Participating Broker-
Dealer selling Exchange Notes during the Applicable Period, the officers and
directors of each such Person, and each Person, if any, who controls any such
Person within the meaning of either Section 15 of the Securities Act or Section
20 of the Exchange Act (each, a "Participant"), from and against any and all
                                 -----------                                
losses, claims, damages and liabilities (including, without limitation, the
legal fees and other expenses actually incurred in connection with any suit,
action or proceeding or any claim asserted) caused by, arising out of or based
upon (i) any untrue statement or alleged untrue statement of a material fact
contained in any Registration Statement (as amended or supplemented if the
Issuers shall have furnished any amendments or supplements thereto) or caused
by, arising out of or based upon any omission or alleged omission to state
therein a material fact required to be stated therein or necessary to make the
statements therein not misleading, or (ii) any untrue statement or alleged
untrue statement of a material fact contained in any Prospectus (as amended or
supplemented if the Issuers shall have furnished any amendments or supplements
thereto) or caused by, arising out of or based upon any omission or alleged
omission to state therein a material fact required to be stated therein or
necessary to make the statements therein, in light of the circumstances under
which they were made, not misleading, except insofar as such losses, claims,
damages or liabilities are caused by any untrue statement or omission or alleged
untrue statement or omission made in reliance upon and in conformity with
information relating to any Participant furnished to the Issuers in writing by
or on behalf of such Participant expressly for use therein; provided, however,
                                                            --------  ------- 
that the Company will not be liable if such untrue statement or omission or
alleged untrue statement or omission was contained or made in any preliminary
prospectus and corrected in the Prospectus or any amendment or supplement
thereto and the Prospectus does not contain any other untrue statement or
omission or alleged untrue statement or omission of a material fact that was the
subject matter of the related proceeding and any such loss, liability, claim,
damage or expense suffered or incurred by the Participants resulted from any
action, claim or suit by any Person who purchased Registrable Notes or Exchange
Notes which are the subject thereof from such Participant and it is established
in the related proceeding that such Participant failed to deliver or provide a
copy of the Prospectus (as amended or supplemented) to such Person with or prior
to the confirmation of the sale of such Registrable Notes or Exchange Notes sold
to such Person if required by applicable law, unless

                                      -19-

 
such failure to deliver or provide a copy of the Prospectus (as amended or
supplemented) was a result of noncompliance by the Company with Section 5 of
this Agreement.

     (b)  Each Participant agrees, severally and not jointly, to indemnify and
hold harmless the Issuers, their respective directors and officers and each
Person who controls any of the Issuers within the meaning of Section 15 of the
Securities Act or Section 20 of the Exchange Act to the same extent as the
foregoing indemnity from the Issuers to each Participant, but only with
reference to information relating to such Participant furnished to the Issuers
in writing by such Participant expressly for use in any Registration Statement
or Prospectus, any amendment or supplement thereto, or any preliminary
prospectus.  The liability of any Participant under this paragraph shall in no
event exceed the proceeds received by such Participant from sales of Registrable
Notes or Exchange Notes giving rise to such obligations.

     (c)  If any suit, action, proceeding (including any governmental or
regulatory investigation), claim or demand shall be brought or asserted against
any Person in respect of which indemnity may be sought pursuant to either of the
two preceding paragraphs, such Person (the "Indemnified Person") shall promptly
                                            ------------------                 
notify the Person against whom such indemnity may be sought (the "Indemnifying
                                                                  ------------
Person") in writing, and the Indemnifying Person, upon request of the
- ------                                                               
Indemnified Person, shall retain counsel reasonably satisfactory to the
Indemnified Person to represent the Indemnified Person and any others the
Indemnifying Person may reasonably designate in such proceeding and shall pay
the reasonable fees and expenses actually incurred by such counsel related to
such proceeding; provided, however, that the failure to so notify the
                 --------  -------                                   
Indemnifying Person shall not relieve it of any obligation or liability which it
may have hereunder or otherwise (unless and only to the extent that such failure
directly results in the loss or compromise of any material rights or defenses by
the Indemnifying Person and the Indemnifying Person was not otherwise aware of
such action or claim).  In any such proceeding, any Indemnified Person shall
have the right to retain its own counsel, but the fees and expenses of such
counsel shall be at the expense of such Indemnified Person unless (i) the
Indemnifying Person and the Indemnified Person shall have mutually agreed in
writing to the contrary, (ii) the Indemnifying Person has failed within a
reasonable time to retain counsel reasonably satisfactory to the Indemnified
Person or (iii) the named parties in any such proceeding (including any
impleaded parties) include both the Indemnifying Person and the Indemnified
Person and representation of both parties by the same counsel would be
inappropriate due to actual or potential differing interests between them. It is
understood that, unless there is a conflict among Indemnified Persons, the
Indemnifying Person shall not, in connection with any proceeding or related
proceeding in the same jurisdiction, be liable for the fees and expenses of more
than one separate firm (in addition to any local counsel) for all Indemnified
Persons, and that all such fees and expenses shall be reimbursed promptly after
receipt of the invoice therefor as they are incurred. Any such separate firm for
the Participants and such control Persons of Participants shall be designated in
writing by Participants who sold a majority in interest of Registrable Notes
sold by all such Participants and any such separate firm for the Issuers, their
directors, their officers and such control Persons of the Issuers shall be
designated in writing by the Company. The Indemnifying Person shall not be
liable for any settlement of any proceeding effected without

                                      -20-

 
its prior written consent, but if settled with such consent or if there is a
final non-appealable judgment for the plaintiff for which the Indemnified Person
is entitled to indemnification pursuant to this Agreement, the Indemnifying
Person agrees to indemnify any Indemnified Person from and against any loss or
liability by reason of such settlement or judgment. Notwithstanding the
foregoing sentence, if at any time an Indemnified Person shall have requested an
Indemnifying Person to reimburse the Indemnified Person for reasonable fees and
expenses actually incurred by counsel as contemplated by the third sentence of
this paragraph, the Indemnifying Person agrees that it shall be liable for any
settlement of any proceeding effected without its prior written consent if (i)
such settlement is entered into more than 30 days after receipt by such
Indemnifying Person of the aforesaid request and (ii) such Indemnifying Person
shall not have reimbursed the Indemnified Person in accordance with such request
prior to the date of such settlement; provided, however, that the Indemnifying
                                      --------  ------- 
Person shall not be liable for any settlement effected without its consent
pursuant to this sentence if the Indemnifying Person is contesting, in good
faith, the request for reimbursement. No Indemnifying Person shall, without the
prior written consent of the Indemnified Person, effect any settlement of any
pending or threatened proceeding in respect of which any Indemnified Person is
or could have been a party and indemnity could have been sought hereunder by
such Indemnified Person, unless such settlement (A) includes an unconditional
release of such indemnified Person, in form and substance satisfactory to such
Indemnified Person, from all liability on claims that are the subject matter of
such proceeding and (B) does not include any statement as to an admission of
fault, culpability or failure to act by or on behalf of an Indemnified Person.

     (d)  If the indemnification provided for in the first and second paragraphs
of this Section 7 is unavailable (other than by reason of the exceptions
specifically provided therein) to, or insufficient to hold harmless, an
Indemnified Person in respect of any losses, claims, damages or liabilities
referred to therein, then each Indemnifying Person under such paragraphs, in
lieu of indemnifying such Indemnified Person thereunder and in order to provide
for just and equitable contribution, shall contribute to the amount paid or
payable by such Indemnified Person as a result of such losses, claims, damages
or liabilities in such proportion as is appropriate to reflect (i) the relative
benefits received by the Indemnifying Person or Persons on the one hand and the
Indemnified Person or Persons on the other from the offering of the Registrable
Notes or Exchange Notes, as the case may be or (ii) if the allocation provided
by the foregoing clause (i) is not permitted by applicable law, not only such
relative benefits but also the relative fault of the Indemnifying Person or
Persons on the one hand and the Indemnified Person or Persons on the other in
connection with the statements or omissions (or alleged statements or omissions)
that resulted in such losses, claims, damages or liabilities (or actions in
respect thereof) as well as any other relevant equitable considerations.  The
relative fault of the parties shall be determined by reference to, among other
things, whether the untrue or alleged untrue statement of a material fact or the
omission or alleged omission to state a material fact relates to information
supplied by the Issuers on the one hand or by the Participants or such other
Indemnified Person, as the case may be, on the other, the parties' relative
intent, knowledge, access to information and opportunity to correct or prevent
such statement or omission and any other equitable considerations appropriate
under the circumstances.

                                      -21-

 
     (e)  The parties agree that it would not be just and equitable if
contribution pursuant to this Section 7 were determined by pro rata allocation
                                                           --- ----           
(even if the Participants were treated as one entity for such purpose) or by any
other method of allocation that does not take account of the equitable
considerations referred to in the immediately preceding paragraph.  The amount
paid or payable by an Indemnified Person as a result of the losses, claims,
damages and liabilities referred to in the immediately preceding paragraph shall
be deemed to include, subject to the limitations set forth above, any reasonable
legal or other expenses actually incurred by such Indemnified Person in
connection with investigating or defending any such action or claim.
Notwithstanding the provisions of this Section 7, in no event shall a
Participant be required to contribute any amount in excess of the amount by
which proceeds received by such Participant from sales of Registrable Notes or
Exchange Notes, as the case may be, exceeds the amount of any damages that such
Participant has otherwise been required to pay by reason of such untrue or
alleged untrue statement or omission or alleged omission.  No Person guilty of
fraudulent misrepresentation (within the meaning of Section 11(f) of the
Securities Act) shall be entitled to contribution from any Person who was not
guilty of such fraudulent misrepresentation.

     (f)  The indemnity and contribution agreements contained in this Section 7
will be in addition to any liability which the Indemnifying Persons may
otherwise have to the Indemnified Persons referred to above.

8.   Rules 144 and 144A
     ------------------

     Each of the Issuers covenants that it will file the reports required to be
filed by it under the Securities Act and the Exchange Act and the rules and
regulations adopted by the SEC thereunder in a timely manner and, if at any time
it is not required to file such reports, it will, upon the request of any Holder
of Registrable Notes, make publicly available other information so long as
necessary to permit sales pursuant to Rule 144 and Rule 144A.  Each of the
Issuers further covenants, for so long as any Registrable Notes remain
outstanding, to make available to any Holder or beneficial owner of Registrable
Notes in connection with any sale thereof and any prospective purchaser of such
Registrable Notes from such Holder or beneficial owner, the information required
by Rule 144A(d)(4) under the Securities Act in order to permit resales of such
Registrable Notes pursuant to Rule 144A.

9.   Underwritten Registration
     -------------------------

     If any of the Registrable Notes covered by any Shelf Registration are to be
sold in an underwritten offering, the investment banker or investment bankers
and manager or managers that will manage the offering will be selected by the
Holders of a majority in aggregate principal amount of such Registrable Notes
included in such offering and reasonably acceptable to the Issuers.

     No Holder of Registrable Notes may participate in any underwritten
registration hereunder unless such Holder (a) agrees to sell such Holder's
Registrable Notes on the basis provided in any underwriting arrangements
approved by the Persons entitled hereunder to approve such arrangements and (b)
completes and executes all questionnaires, powers of

                                      -22-

 
attorney, indemnities, underwriting agreements and other documents required
under the terms of such underwriting arrangements.

                                      -23-

 
10.  Miscellaneous
     -------------

     (a) No Inconsistent Agreements.  None of the Issuers has entered, as of the
         --------------------------                                             
date hereof, and none of the Issuers shall enter, after the date of this
Agreement, into any agreement with respect to any of its securities that is
inconsistent with the rights granted to the Holders of Registrable Notes in this
Agreement or otherwise conflicts with the provisions hereof.  None of the
Issuers has entered and the Issuers will enter into any agreement with respect
to any of its securities which will grant to any Person piggy-back rights with
respect to a Registration Statement.

     (b) Adjustments Affecting Registrable Notes.  Neither the Company nor the
         ---------------------------------------                              
Subsidiary Guarantors shall, directly or indirectly, take any action with
respect to the Registrable Notes as a class that would adversely affect the
ability of the Holders of Registrable Notes to include such Registrable Notes in
a registration undertaken pursuant to this Agreement.

     (c) Amendments and Waivers.  The provisions of this Agreement may not be
         ----------------------                                              
amended, modified or supplemented, and waivers or consents to departures from
the provisions hereof may not be given, otherwise than with the prior written
consent of (A) the Holders of not less than a majority in aggregate principal
amount of the then outstanding Registrable Notes and (B) in circumstances that
would adversely affect Participating Broker-Dealers, the Participating Broker-
Dealers holding not less than a majority  in aggregate principal amount of the
Exchange Notes held by all Participating Broker-Dealers; provided, however, that
                                                         --------  -------      
Section 7 and this Section 10(c) may not be amended, modified or supplemented
without the prior written consent of each Holder and each Participating Broker-
Dealer (including any Person who was a Holder or Participating Broker-Dealer of
Registrable Notes or Exchange Notes, as the case may be, disposed of pursuant to
any Registration Statement).  Notwithstanding the foregoing, a waiver or consent
to depart from the provisions hereof with respect to a matter than relates
exclusively to the rights of Holders of Registrable Notes whose securities are
being tendered pursuant to the Exchange Offer or sold pursuant to a Registration
Statement and that does not directly or indirectly affect, impair, limit or
compromise the rights of other Holders of Registrable Notes may be given by
Holders of not less than a majority in aggregate principal amount of the
Registrable Notes being tendered or being sold by such Holders pursuant to such
Registration Statement.  In addition, each such amendment, modification,
supplement and waiver must be agreed to in writing by the Issuers.

     (d) Notices.  Any notices or other communications required or permitted
         -------                                                            
hereunder shall be in writing, and shall be sufficiently given if made by hand
delivery, by telex, by telecopier or registered or certified mail, postage
prepaid, return receipt requested, addressed as follows:

         1.  if to a Holder of Registrable Notes or any Participating Broker-
     Dealer, at the most current address of such Holder or Participating Broker-
     Dealer, as the case may be, set forth on the records of the registrar under
     the Indenture, with a copy in like manner to the Initial Purchaser as
     follows:

                                      -24-

 
               Jefferies & Company, Inc.
               11100 Santa Monica Blvd.
               10th Floor
               Los Angeles, CA 90025
               Telephone: (310) 575-5200
               Facsimile No.: (310) 575-5165
               Attention:  Corporate Finance Department

          with a copy to:

               Cadwalader, Wickersham & Taft
               100 Maiden Lane
               New York, New York  10038
               Telephone: (212) 504-6000
               Facsimile No.: (212) 504-6666
               Attention:  Lawrence A. Larose

          2.   if to the Initial Purchaser, at the address specified in Section
               10(d)(1);

          3.   if to an Issuer, as follows:

               VIALOG Corporation
               Ten New England Business Center, Suite 302
               Andover, Massachusetts 01810
               Facsimile:  (978) 975-7208
               Telephone:  (978) 975-3700
               Attention:  President

          with copies to:

               Mirick, O'Connell, DeMallie & Lougee, LLP
               1700 Bank of Boston Tower
               100 Front Street
               Worcester, MA  01608
               Telephone: (508) 799-0541
               Facsimile No.: (508) 752-7305
               Attention:  David L. Lougee

          Each of such persons by written notice to each other such person may
designate additional or different addresses for notices to such person.  Any
notice or communication shall be deemed to have been given or made as of the
date so delivered if personally delivered; when answered back, if telexed; when
receipt is affirmatively acknowledged, if telecopied; and five (5) calendar days
after mailing if sent by registered or certified mail, postage prepaid 

                                      -25-

 
(except that a notice of change of address shall not be deemed to have been
given until actually received by the addressee).

          Any notice or communication mailed to a Holder shall be mailed to him
by first class mail or other equivalent means at his address as it appears on
the registration books of the Registrar and shall be sufficiently given to him
if so mailed within the time prescribed.

          Failure to mail a notice or communication to a Holder or any defect in
it shall not affect its sufficiency with respect to other Holders.  If a notice
or communication is mailed in the manner provided above, it is duly given,
whether or not the addressee receives it.

     (e)  Successors and Assigns.  This Agreement shall inure to the benefit of
          ----------------------                                               
and be binding upon the successors and assigns of each of the parties hereto and
the Holders; provided, however, that this Agreement shall not inure to the
             --------  -------                                            
benefit of or be binding upon a successor or assign of a Holder unless such
successor or assign holds Registrable Notes.

     (f)  Counterparts.  This Agreement may be executed in any number of
          ------------                                                  
counterparts and by the parties hereto in separate counterparts, each of which
when so executed shall be deemed to be an original and all of which taken
together shall constitute one and the same agreement.

     (g)  Headings.  The headings in this Agreement are for convenience of
          --------                                                        
reference only and shall not limit or otherwise affect the meaning hereof.

     (H)  GOVERNING LAW.  THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN
          -------------                                                       
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, AS APPLIED TO CONTRACTS MADE
AND PERFORMED WITHIN THE STATE OF NEW YORK, WITHOUT REGARD TO PRINCIPLES OF
CONFLICTS OF LAW.  EACH OF THE PARTIES HERETO AGREES TO SUBMIT TO THE
JURISDICTION OF THE COURTS OF THE STATE OF NEW YORK IN ANY ACTION OR PROCEEDING
ARISING OUT OF OR RELATING TO THIS AGREEMENT.

     (i)  Severability.  If any term, provision, covenant or restriction of this
          ------------                                                          
Agreement is held by a court of competent jurisdiction to be invalid, illegal,
void or unenforceable, the remainder of the terms, provisions, covenants and
restrictions set forth herein shall remain in full force and effect and shall in
no way be affected, impaired or invalidated, and the parties hereto shall use
their best efforts to find and employ an alternative means to achieve the same
or substantially the same result as that contemplated by such term, provision,
covenant or restriction.  It is hereby stipulated and declared to be the
intention of the parties that they would have executed the remaining terms,
provisions, covenants and restrictions without including any of such that may be
hereafter declared invalid, illegal, void or unenforceable.

     (j)  Notes Held by the Issuers or Their Affiliates. Whenever the consent or
          ---------------------------------------------              
approval of Holders of a specified percentage of Registrable Notes is required
hereunder, Registrable Notes held by the Issuers or their affiliates (as such
term is defined in Rule 405 

                                      -26-

 
under the Securities Act) shall not be counted in determining whether such
consent or approval was given by the Holders of such required percentage.

     (k)  Third Party Beneficiaries.  Holders of Registrable Notes and
          -------------------------                                   
Participating Broker-Dealers are intended third party beneficiaries of this
Agreement and this Agreement may be enforced by such Persons.

     (1)  Entire Agreement. This Agreement, together with the Purchase Agreement
          ----------------
and the Indenture, is intended by the parties as a final and exclusive statement
of the agreement and understanding of the parties hereto in respect of the
subject matter contained herein and therein and any and all prior oral or
written agreements, representations, or warranties, contracts, understandings,
correspondence, conversations and memoranda between the Initial Purchaser on the
one hand and the Issuers on the other, or between or among any agents,
representatives, parents, subsidiaries, affiliates, predecessors in interest or
successors in interest with respect to the subject matter hereof and thereof are
merged herein and replaced hereby.

                                      -27-

 
     IN WITNESS WHEREOF, the parties have executed this Agreement as of the date
first written above.

                                    VIALOG CORPORATION


                                    BY: /s/ Glenn D. Bolduc
                                        -------------------
                                        Name:  Glenn D. Bolduc
                                        Title: President and Chief Executive
                                               Officer


                                    KENDALL SQUARE  TELECONFERENCING, INC. D/B/A
                                    THE CONFERENCE CENTER


                                    BY: /s/ Glenn D. Bolduc
                                        -------------------
                                        Name:  Glenn D. Bolbuc
                                        Title: Authorized Signatory


                                    AMCS ACQUISITION CORPORATION


                                    BY: /s/ Glenn D. Bolduc
                                        -------------------
                                        Name:  Glenn D. Bolduc
                                        Title: Authorized Signatory


                                    COMMUNICATION DEVELOPMENT  CORPORATION


                                    BY: /S/ Glenn D. Bolbuc
                                        -------------------
                                        Name:  Glenn D. Bolbuc
                                        Title: Authorized Signatory

                                      -28-

 
                                    TELEPHONE BUSINESS MEETINGS,  INC., d/b/a
                                    ACCESS CONFERENCE  CALL SERVICE


                                    BY: /s/ Glenn D. Bolduc
                                        -------------------
                                        Name:  Glenn D. Bolduc
                                        Title: Authorized Signatory


                                    CONFERENCE SOURCE  INTERNATIONAL, INC.


                                    BY: /s/ Glenn D. Bolduc
                                        -------------------
                                        Name:  Glenn D. Bolduc
                                        Title: Authorized Signatory


                                    CALL POINTS ACQUISITION  CORPORATION


                                    BY: /s/ Glenn D. Bolduc
                                        -------------------
                                        Name:  Glenn D. Bolduc
                                        Title: Authorized Signatory

                                      -29-

 
                                    JEFFERIES & COMPANY, INC.


                                    By: /s/ Turner C. Smith
                                        --------------------
                                        Name:  Turner C. Smith
                                        Title: Managing Director

                                      -30-