VIALOG CORP
8-K, 1998-05-28
TELEPHONE COMMUNICATIONS (NO RADIOTELEPHONE)
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549



                                    FORM 8-K

                Current Report Pursuant to Section 13 or 15(d) of
                           The Securities Act of 1934




Date of Report (Date of earliest event reported):   May 23, 1998

                               VIALOG CORPORATION
- --------------------------------------------------------------------------------
             (Exact name of registrant as specified in its charter)


   Massachusetts                  333-44041                      04-3305282
- --------------------------------------------------------------------------------
  (State or other                (Commission                  (I.R.S. Employer
    jurisdiction                 File Number)                Identification No.)
 of incorporation)



                    10 New England Business Center, Suite 302
                                Andover, MA 01810
- --------------------------------------------------------------------------------
                    (Address of principal executive offices)


                                                     
Registrant's telephone number, including area code    (978) 975-3700




- --------------------------------------------------------------------------------
         (Former name or former address, if changed since last report.)
<PAGE>
Item 5.  Other Events

         On  May  23,  1998,  VIALOG  Corporation   ("VIALOG")  entered  into  a
definitive merger agreement (the "Merger  Agreement") with A Business Conference
Call, Inc. ("ABCC"), an independent provider of teleconferencing  services based
in Chaska, Minnesota. Pursuant to the terms of the Merger Agreement, VIALOG will
acquire  all of the  outstanding  capital  stock of ABCC for  approximately  $14
million in cash. ABCC's 1997 revenues totaled approximately $5.7 million.

         The  closing  of  the  transactions   under  the  Merger  Agreement  is
contingent  upon VIALOG and ABCC  satisfying  the  conditions  specified  in the
Merger Agreement.

         The press  release  announcing  the  Merger  Agreement  and the  Merger
Agreement are attached hereto as Exhibits 99.1 and 99.2,  respectively,  and are
incorporated herein by reference.

Item 7.  Financial Statements and Exhibits

         (c) Exhibits

             99.1 Press Release regarding Merger Agreement dated May 28, 1998

             99.2 Agreement  and  Plan of  Reorganization  By and  Among  VIALOG
                  Corporation,   ABC   Acquisition   Corporation,   A   Business
                  Conference Call, Inc. and Daniel L. Barber and Robert M. Kalla
                  dated as of May 23, 1998

                                    SIGNATURE

         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
the  registrant  has duly  caused  this report to be signed on its behalf by the
undersigned duly authorized.

                                              VIALOG CORPORATION


Date:  May 28, 1998                        By:   /s/  Glenn D. Bolduc
                                                 --------------------
                                                 Glenn D. Bolduc, President

                                  EXHIBIT INDEX

 Exhibit
 -------
  99.1        Press Release regarding Merger Agreement dated May 28, 1998

  99.2         Agreement and Plan of Reorganization By and Among ABC Acquisition
               Corporation,  A  Business  Conference  Call,  Inc.  and Daniel L.
               Barber and Robert M. Kalla dated as of May 23, 1998

                                                                    EXHIBIT 99.1



                   Contact: Mimi Englander, Director of Marketing Communications
                            978-975-3700 / [email protected]



FOR IMMEDIATE RELEASE



                  VIALOG CORPORATION PLANS TO ACQUIRE BY MERGER
                        A BUSINESS CONFERENCE CALL, INC.



Andover,  Mass.,  May 28,  1998 - VIALOG  Corporation  today  announced  that it
entered into a  definitive  merger  agreement to acquire all of the  outstanding
capital stock of A Business  Conference  Call,  Inc.  ("ABCC"),  an  independent
provider of audioconferencing  services,  for approximately $14 million in cash.
Based in Chaska,  Minnesota,  ABCC's 1997 revenues  totaled  approximately  $5.7
million.

The closing of the merger transaction is contingent upon both parties satisfying
the conditions specified in the definitive merger agreement.

VIALOG Corporation is an independent provider of group communications  services,
including   audioconferencing,    videoconferencing,    dataconferencing,    and
teleservices  such as Interactive  Voice Response  (IVR),  broadcast fax and fax
on-demand.

                                       ###

                                                                    EXHIBIT 99.2









                      AGREEMENT AND PLAN OF REORGANIZATION
                                  BY AND AMONG
                               VIALOG CORPORATION
                           ABC ACQUISITION CORPORATION
                        A BUSINESS CONFERENCE CALL, INC.
                                       AND
                                DANIEL L. BARBER
                                       AND
                                 ROBERT M. KALLA
                            Dated as of May 23, 1998


<PAGE>
TABLE OF CONTENTS

ARTICLE 1 THE MERGER...........................................................2

         SECTION 1.1  The Merger...............................................2
         SECTION 1.2  Action by Stockholders...................................2
         SECTION 1.3  Closing..................................................2
         SECTION 1.4  Effective Time...........................................3
         SECTION 1.5  Effect of the Merger.....................................3
         SECTION 1.6  Certificate of Incorporation.............................3
         SECTION 1.7  Bylaws...................................................3
         SECTION 1.8  Directors and Officers...................................3

ARTICLE 2 CONVERSION OF SECURITIES AND EXCHANGE
          OF CERTIFICATES .....................................................4

         SECTION 2.1  Conversion of Securities.................................4
         SECTION 2.2  Exchange of Certificates and Exchange Procedures.........4
         SECTION 2.3  Stock Transfer Books.....................................5
         SECTION 2.4  Option Securities........................................5

ARTICLE 3 REPRESENTATIONS AND WARRANTIES OF THE COMPANY........................5

         SECTION 3.1  Organization and Business; Power and Authority; Etc......6
         SECTION 3.2  Financial and Other Information..........................7
         SECTION 3.3  Changes in Condition.....................................8
         SECTION 3.4  Liabilities..............................................8
         SECTION 3.5  Title to Properties; Leases..............................8
         SECTION 3.6  Compliance with Private Authorizations...................9
         SECTION 3.7  Compliance with Governmental Authorizations and
                      Applicable Law..........................................10
         SECTION 3.8  Intangible Assets.......................................11
         SECTION 3.9  Related Transactions....................................11
         SECTION 3.10 Insurance...............................................12
         SECTION 3.11 Tax Matters.............................................12
         SECTION 3.12 Employee Retirement Income Security Act of 1974.........13
         SECTION 3.13 Absence of Sensitive Payments...........................16
         SECTION 3.14 Inapplicability of Specified Statutes...................16
         SECTION 3.15 Authorized and Outstanding Capital Stock................16
         SECTION 3.16 Employment Arrangements.................................17
         SECTION 3.17 Material Agreements.....................................18
         SECTION 3.18 Ordinary Course of Business.............................18
         SECTION 3.19 Bank Accounts; Etc......................................20
         SECTION 3.20 Adverse Restrictions....................................20
         SECTION 3.21 Broker or Finder........................................20

                                       i
<PAGE> 
        SECTION 3.22 Personal Injury or Property Damage; 
                      Warranty Claims; Etc. ..................................20
         SECTION 3.23 Environmental Matters...................................20
         SECTION 3.24 This Section Intentionally Left Blank...................22
         SECTION 3.25 Solvency................................................22
         SECTION 3.26 Public Utilities Commission.............................22
         SECTION 3.27 Compliance with Regulations Relating to 
                      Securities Credit ......................................23
         SECTION 3.28 This Section Intentionally Left Blank...................23
         SECTION 3.29 Continuing Representations and Warranties...............23
         SECTION 3.30 This Section Intentionally Left Blank...................23
         SECTION 3.31 Predecessor Status; Etc.................................23

ARTICLE 4 REPRESENTATIONS AND WARRANTIES OF THE
          PRINCIPAL STOCKHOLDER ..............................................23

         SECTION 4.1  Enforceability..........................................24
         SECTION 4.2  Title to Shares.........................................24
         SECTION 4.3  No Conflict; Required Filings and Consents..............24

ARTICLE 5 REPRESENTATIONS AND WARRANTIES OF VIALOG AND
          VIALOG MERGER SUBSIDIARY............................................25

         SECTION 5.1  Organization and Qualification..........................25
         SECTION 5.2  Power and Authority.....................................25
         SECTION 5.3  No Conflict; Required Filings and Consents..............25
         SECTION 5.4  Financing...............................................26
         SECTION 5.5  Brokers or Finder.......................................26
         SECTION 5.6  Continuing Representations and Warranties...............26
         SECTION 5.7  Capitalization and Fraudulent Conveyance................26
         SECTION 5.8  Prior Activities of VIALOG Merger Subsidiary............26
         SECTION 5.9  Registration Statement..................................27

ARTICLE 6 ADDITIONAL COVENANTS................................................27

         SECTION 6.1  Access to Information; Confidentiality..................27
         SECTION 6.2  Agreement to Cooperate..................................28
         SECTION 6.3  Assignment of Contracts and Rights......................29
         SECTION 6.4  Audited Financial Statements............................30
         SECTION 6.5  Conduct of Business.....................................30
         SECTION 6.6  No Solicitation.........................................31
         SECTION 6.7  Directors' and Officers' Indemnification
                      and Insurance ..........................................31
         SECTION 6.8  Notification of Certain Matters.........................32
         SECTION 6.9  Public Announcements....................................32
         SECTION 6.10 Conveyance Taxes........................................32
         SECTION 6.11 Obligations of VIALOG...................................33
         SECTION 6.12 Employee Benefits; Severance Policy.....................33

                                       ii
<PAGE> 
         SECTION 6.13 Certain Actions Concerning Business Combinations........33
         SECTION 6.14 No Significant Changes..................................33
         SECTION 6.15 Tax Returns.............................................34
         SECTION 6.16 Employment and Noncompetition...........................34
         SECTION 6.17 Distributions; Liabilities; Etc.........................34
         SECTION 6.18 Release from Personal Guarantees........................34
         SECTION 6.19 Section 338(h)(10) Election.............................35
         SECTION 6.20 Registration Statement..................................36

ARTICLE 7 CLOSING CONDITIONS .................................................37

         SECTION 7.1  Conditions to Obligations of Each Party to
                      Effect the Merger ......................................37
         SECTION 7.2  Conditions to Obligations of VIALOG and VIALOG 
                      Merger Subsidiary.......................................37
         SECTION 7.3  Conditions to Obligations of the Company................41

ARTICLE 8 TERMINATION, AMENDMENT AND WAIVER...................................42

         SECTION 8.1  Termination.............................................42
         SECTION 8.2  Effect of Termination...................................44
         SECTION 8.3  Amendment...............................................44
         SECTION 8.4  Waiver..................................................44
         SECTION 8.5  Fees, Expenses and Other Payments.......................45
         SECTION 8.6  Effect of Investigation.................................45

ARTICLE 9 THIS ARTICLE INTENTIONALLY LEFT BLANK...............................45

ARTICLE 10 INDEMNIFICATION ...................................................45

         SECTION 10.1 Indemnification.........................................45
         SECTION 10.2 Procedure Concerning Claims by Third Parties;
                      Payment of Damages; Etc.................................47
         SECTION 10.3 Access to Books and Records.............................48
         SECTION 10.4 Exclusivity.............................................49

ARTICLE 11 GENERAL PROVISIONS ................................................49

         SECTION 11.1  Effectiveness of Representations; Etc..................49
         SECTION 11.2  Notices................................................50
         SECTION 11.3  Headings...............................................51
         SECTION 11.4  Severability...........................................51
         SECTION 11.5  Entire Agreement.......................................51
         SECTION 11.6  Assignment.............................................51
         SECTION 11.7  Parties in Interest....................................51
         SECTION 11.8  Governing Law..........................................51

                                       iii
<PAGE> 
         SECTION 11.9  Enforcement of the Agreement...........................51
         SECTION 11.10 Counterparts...........................................52
         SECTION 11.11 Disclosure Supplements.................................52

ARTICLE 12 DEFINITIONS .......................................................52










                                       iv
<PAGE> 
                      AGREEMENT AND PLAN OF REORGANIZATION


         AGREEMENT  AND  PLAN OF  REORGANIZATION  dated  as of May , 1998  among
VIALOG  CORPORATION,  a Massachusetts  corporation  ("VIALOG"),  ABC Acquisition
Corporation,  a Delaware  corporation  and  wholly  owned  subsidiary  of VIALOG
("VIALOG Merger  Subsidiary"),  A Business  Conference  Call,  Inc., a Minnesota
corporation  (the  "Company"),  and  Daniel L.  Barber  and Robert M. Kalla (the
"Stockholders").

                                    PREAMBLE


         1. The Company and VIALOG Merger  Subsidiary have agreed to carry out a
business combination transaction upon the terms and subject to the conditions of
this Agreement and in accordance  with the Minnesota  Business  Corporation  Act
(the  "BCA")  and the  General  Corporation  Law of the State of  Delaware  (the
"DBCL"), pursuant to which the VIALOG Merger Subsidiary will merge with and into
the Company (the "Merger") and the Stockholders will convert their holdings into
cash determined in accordance with Section 2.1(a).

         2. Pursuant to the Underwriting  Agreement,  VIALOG will issue and sell
VIALOG  Stock in a firm  commitment  public  offering  (the  "Public  Offering")
registered on Form S-1 (the  "Registration  Statement")  in accordance  with the
requirements of the Securities Act of 1933, as amended (the "Securities Act").

         3. The Board of  Directors  of the Company has  unanimously  determined
that the Merger is fair to, and in the best  interests  of, the  Company and the
Stockholders  and has approved and adopted  this  Agreement  and the Merger as a
convenient  means to  accomplish a forward cash merger  pursuant to the Internal
Revenue Code of 1986,  as amended  (the "Code") and a convenient  means to cause
all of the  Stockholders  to  transfer  their  capital  stock of the  Company to
VIALOG,  has approved this Agreement,  the Merger and the  Transactions  and has
recommended  approval  and  adoption  of  this  Agreement,  the  Merger  and the
Transactions by the Stockholders.

         4. The Board of  Directors  of VIALOG has  approved  and  adopted  this
Agreement  and  has  approved  the  Merger  and  the  Transactions  as the  sole
stockholder  of VIALOG  Merger  Subsidiary  and the Board of Directors of VIALOG
Merger Subsidiary has approved and adopted this Agreement.

                                    AGREEMENT

         In consideration  of the foregoing and the respective  representations,
warranties,  covenants and agreements set forth in this  Agreement,  the parties
agree as follows:

                                       1
<PAGE>
                                     ARTICLE
                                        1
                                   THE MERGER


1.1      The Merger.

         (a) Upon the  terms and  subject  to the  conditions  set forth in this
Agreement, and in accordance with the BCA and the DBCL at the Effective Time the
VIALOG Merger  Subsidiary will be merged with and into the Company.  As a result
of the Merger, the separate existence of the VIALOG Merger Subsidiary will cease
and the Company will  continue as the surviving  corporation  of the Merger (the
"Surviving Corporation").

         (b) The Company  represents its Board of Directors has  unanimously (i)
determined that this Agreement,  the Merger and the Transactions are fair to and
in the best interest of Stockholders,  (ii) approved this Agreement,  the Merger
and the Transactions,  which approval  satisfies in full the requirements of the
BCA and Minnesota law, and (iii) resolved to recommend  approval and adoption by
the  Stockholders  of this  Agreement,  the Merger and the  Transactions  to the
extent required and in a manner permitted by Applicable Law.

1.2      Action by Stockholders.

         (a) The  Company,  acting  through  its Board of  Directors,  will,  in
accordance with Applicable Law and its Organizational  Documents: (i) as soon as
practicable,  duly call,  give notice of, convene and hold a special meeting of,
or to the extent permitted by Applicable Law submit for approval and adoption by
written consent by, the  Stockholders  for the purpose of adopting and approving
this Agreement,  the Merger and the Transactions  (the "Special  Meeting");  and
(ii) use its reasonable  commercial efforts to obtain the necessary approval and
adoption of this Agreement, the Merger and the Transactions by the Stockholders.

         (b) VIALOG Merger  Subsidiary,  as soon as practicable,  will submit to
VIALOG this Agreement, the Merger and the Transactions for approval and adoption
by written  consent as the sole  stockholder  of VIALOG Merger  Subsidiary,  and
VIALOG will take all additional  actions as such sole  stockholder  necessary to
adopt and approve this Agreement, the Merger and the Transactions.

         (c) The approvals  required by Sections 1.2(a) and (b) will occur prior
to the initial filing of the Registration Statement,  which is expected to occur
on or about May 26, 1998 and in any event within 30 days of the date hereof.

         1.3 Closing.  Unless this  Agreement is terminated  pursuant to Section
8.1 and the Merger and the Transactions have been abandoned,  and subject to the
satisfaction  or, if possible,  waiver of conditions set forth in Article 7, the
closing of the Merger (the  "Merger  Closing')  will take place one day prior to
the  Effective  Date at the  location  mutually  agreed  upon by VIALOG  and the
Company.  Counsel for the parties to this Agreement will hold a pre-closing  two
days 


                                       2
<PAGE>
prior to the Effective  Date, at the location agreed upon by the parties for the
purpose of  finalizing  all  documents to be signed at the Merger  Closing.  All
certificates and other instruments  required to be delivered in order to satisfy
the conditions to the  obligations of the Parties to effect the Merger set forth
in  Article 7 below  shall be  delivered  at the Merger  Closing,  and each such
certificate or other instrument shall,  except to the extent otherwise  provided
in Article 7, be dated as of the anticipated  Effective Time,  which is expected
to occur three  business  days  following the date of Merger  Closing.  All such
certificates and other instruments shall be held in escrow by Mirick, O'Connell,
DeMallie  & Lougee,  LLP  between  the Merger  Closing  and the  Effective  Time
pursuant to the escrow  letter in the form  attached as Exhibit 1.3 and shall be
released from escrow concurrently with the Effective Time. In the event that the
Effective  Time occurs on a date other than the third business day following the
Merger Closing,  all such  certificates and instruments  shall be re-dated as of
the Effective  Time.  The Company,  the  Stockholders,  VIALOG and VIALOG Merger
Subsidiary  shall use their reasonable  commercial  efforts to cause each of the
conditions set forth in Article 7 reasonably capable of being satisfied prior to
the Merger Closing.

         1.4 Effective  Time. On the Public  Offering  Closing Date, the Parties
will cause the Merger to be  consummated  by filing a certificate of merger with
the  Secretary of State of Delaware and articles of merger and a short form plan
and agreement of merger with the State of  Minnesota,  and by making any related
filings required under the BCA and the DBCL. The Merger will become effective at
such  time  (but  not  prior  to the  Public  Offering  Closing  Date)  as  such
certificate  and articles and plan,  as the case may be, are duly filed with the
Secretary  of State  of  Delaware  and the  Secretary  of  State  of  Minnesota,
respectively (the "Effective Time)".

         1.5  Effect  of the  Merger.  From and after the  Effective  Time,  the
Surviving  Corporation  will  possess  all the  rights,  privileges,  powers and
franchises and be subject to all of the restrictions, disabilities and duties of
the Company and VIALOG Merger Subsidiary, and the Merger will otherwise have the
effects, all as provided under the BCA and the DBCL.

         1.6 Articles of  Incorporation.  From and after the Effective Time, the
Articles of Incorporation of the Surviving  Corporation will be substantially in
the form  attached as Exhibit 1.6 until amended in  accordance  with  Applicable
Law, and the name of the Surviving  Corporation  will be the name of the Company
or such other name as VIALOG may elect.

         1.7  Bylaws.  From and  after the  Effective  Time,  the  bylaws of the
Surviving Corporation will be in the form attached as Exhibit 1.7, until amended
in accordance with Applicable Law.

         1.8 Directors and Officers.  From and after the Effective  Time,  until
successors  are duly  elected  or  appointed  and  qualified  (or their  earlier
resignation  or removal) in  accordance  with  Applicable  Law the directors and
officers  of the VIALOG  Merger  Subsidiary  at the  Effective  Time will be the
directors and officers of the Surviving Corporation.

                                       3
<PAGE>
                                     ARTICLE
                                       2

              CONVERSION OF SECURITIES AND EXCHANGE OF CERTIFICATES


         2.1 Conversion of Securities.  At the Effective  Time, by virtue of the
Merger and  without  any  action on the part of VIALOG  Merger  Subsidiary,  the
Company or the holders of any of the following securities:

         (a) Each  share of Common  Stock,  $.01 par value of the  Company  (the
"Company  Stock")  issued and  outstanding  will be converted  into the right to
receive cash (the "Aggregate  Merger  Consideration")  pursuant to the following
formula:

         Aggregate Merger Consideration     =     $14,000,000 cash

         Merger Consideration               =     Aggregate Merger Consideration
                                                  ------------------------------
                                                         Aggregate Equity

         At the Effective  Time,  all issued and  outstanding  shares of Company
Stock (the  "Shares") will no longer be outstanding  and will  automatically  be
canceled  and  retired  and will  cease to exist,  and  certificates  previously
evidencing any such Shares (each a "Certificate") will thereafter  represent the
right to receive,  upon the surrender of such Certificate in accordance with the
provisions  of Section 2.2,  cash equal to the number of Shares  represented  by
such Certificate  multiplied by the Merger Consideration.  A holder of more than
one  Certificate  will  have  the  right to  receive  cash  equal to the  Merger
Consideration  multiplied  by the  number  of  Shares  represented  by all  such
Certificates (the "Exchange Merger Consideration").  The holders of Certificates
previously evidencing Shares outstanding immediately prior to the Effective Time
will cease to have any rights with  respect to such Shares  except as  otherwise
provided in this Agreement or by Applicable Law.

         (b) Each share of common stock of VIALOG Merger Subsidiary  outstanding
immediately  prior to the Effective  Time will be converted  into and become one
share of common stock of the Surviving  Corporation with the same rights, powers
and  privileges  as the  shares  so  converted  and  will  constitute  the  only
outstanding shares of capital stock of the Surviving Corporation.

         2.2 Exchange of Certificates and Exchange Procedures.

         (a) On the Public  Offering  Closing  Date,  VIALOG will deliver to the
holders of Shares for exchange in accordance with this Article, by wire transfer
of immediately available funds to the bank accounts designated by the respective
Stockholders,  an amount  equal to the Merger  Consideration  multiplied  by the
number of all Shares issued and outstanding  immediately  prior to the Effective
Time.

                                       4
<PAGE>
         (b) Upon surrender of a Certificate  for  cancellation  to VIALOG or to
such other  agent or agents as may be  appointed  by VIALOG  together  with such
letter of transmittal,  duly executed, and such other customary documents as may
be  reasonably  required  pursuant  to  such  instructions  (collectively,   the
"Transmittal Documents"), the holder of such Certificate will become entitled to
receive in exchange therefor the Merger  Consideration which such holder has the
right to receive pursuant to Sections 2.1(a), and the Certificate so surrendered
will be canceled.  Until  surrendered  as  contemplated  by this  Section,  each
Certificate will be deemed at any time after the Effective Time to evidence only
the right to receive,  upon such surrender,  the Merger  Consideration,  without
interest.

         (c) Each of VIALOG and the  Surviving  Corporation  will be entitled to
deduct and withhold from the  consideration  otherwise  payable pursuant to this
Agreement  to any  holder  of Shares  such  amounts  as VIALOG or the  Surviving
Corporation  is required to deduct and  withhold  with  respect to the making of
such payment  under the Code,  or any  provision of state,  local or foreign tax
law.  To the extent that  amounts  are so  withheld  by VIALOG or the  Surviving
Corporation,  such  withheld  amounts  will be treated for all  purposes of this
Agreement  as having  been paid to the  holder of the Shares in respect of which
such deduction and withholding was made by VIALOG, or the Surviving Corporation.

         2.3  Stock  Transfer  Books.  At the  Merger  Closing  Date,  the stock
transfer  books of the  Company  will be  closed,  and there  will be no further
registration  of  transfers of Shares  thereafter  on the records of the Company
other than to VIALOG.  On or after the Effective Time any Certificate  presented
to  VIALOG  or the  Surviving  Corporation  will be  converted  into the  Merger
Consideration.

         2.4 Option Securities.  At the Effective Time, VIALOG will grant to the
Stockholders incentive options,  substantially in the form of Exhibit 2.4, for a
total of 75,000 shares of VIALOG Stock  exercisable  at the fair market value on
the date of grant.  Daniel L.  Barber  and Robert M.  Kalla  shall each  receive
options for 37,500 shares which such options shall become  exercisable for 3,125
shares on the date of grant and an  additional  3,125  shares on each October 1,
January 1, April 1 and July 1 thereafter until fully vested.  Such options shall
expire three (3) years from the date of grant.  In the event of  termination  of
the  employment of Daniel L. Barber or Robert M. Kalla the option of such person
shall  become a  non-qualified  option  if not  exercised  within 90 days of the
termination  of  employment  and be  exercisable  for  another  275 days for the
options vested as of the date of such termination.


                                     ARTICLE
                                       3
                  REPRESENTATIONS AND WARRANTIES OF THE COMPANY


         The Company  represents,  warrants and  covenants  to, and agrees with,
VIALOG and VIALOG Merger Subsidiary as follows:

                                       5
<PAGE>
         3.1 Organization and Business; Power and Authority; Etc.

         (a) The Company:

                  (i)      is a corporation duly organized, validly existing and
                           in good standing under the laws of Minnesota,

                  (ii)     has all requisite power and authority  (corporate and
                           other) to own or hold under lease its  properties and
                           to conduct its business as now  conducted  and has in
                           full force and effect all Governmental Authorizations
                           and   Private   Authorizations   and  has   made  all
                           Governmental Filings, to the extent required for such
                           ownership  and lease of its  property  and conduct of
                           its business, and

                  (iii)    has duly  qualified  and is authorized to do business
                           and is in good standing as a foreign  corporation  in
                           each  jurisdiction  (a true and correct list of which
                           is set  forth in  Section  3.1(a)  of the  Disclosure
                           Schedule)  in which the  character of its property or
                           the nature of its  business  or  operations  requires
                           such  qualification or  authorization,  except to the
                           extent the failure so to qualify or to maintain  such
                           authorizations would not have an Adverse Effect.

         (b) Except as set forth in Section 3.1(b) of the  Disclosure  Schedule,
the Company has all requisite power and authority  (corporate and other) and has
in  full  force  and  effect  all   Governmental   Authorizations   and  Private
Authorizations in order to enable it to execute and deliver,  and to perform its
obligations  under,  this  Agreement and each  Collateral  Document  executed or
required to be executed by it pursuant  hereto or thereto and to consummate  the
Merger and the  Transactions.  The execution,  delivery and  performance of this
Agreement  and each  Collateral  Document  executed  or  required to be executed
pursuant hereto or thereto have been duly authorized by all requisite  corporate
or other action (other than that of the  Stockholders).  This Agreement has been
duly executed and delivered by the Company and constitutes,  and each Collateral
Document  executed or required to be executed  pursuant  hereto or thereto or to
consummate the Merger and the  Transactions,  when executed and delivered by the
Company will constitute,  legal,  valid and binding  obligations of the Company,
enforceable  in  accordance  with  their   respective   terms  (except  as  such
enforceability   may  be  subject   to   bankruptcy,   moratorium,   insolvency,
reorganization,  arrangement,  voidable  preference,  fraudulent  conveyance and
other  similar laws  relating to or affecting  rights of creditors and except as
the same may be  subject to the effect of general  principles  of  equity).  The
affirmative  vote or action by written  consent of 100  percent of the votes the
holders of the  outstanding  shares of the Company  are  entitled to cast is the
only vote of the  holders  of any class or  series of the  capital  stock of the
Company  necessary to approve this  Agreement,  the Merger and the  Transactions
under Applicable Law and the Company's Organizational Documents.

         (c) Except as set forth in Section 3.1(c) of the  Disclosure  Schedule,
neither the execution and delivery of this Agreement or any Collateral  Document
executed  or  required  to be


                                       6
<PAGE>
executed  pursuant hereto or thereto,  nor the consummation of the Transactions,
nor compliance  with the terms,  conditions and provisions  hereof or thereof by
the Company or any of the other  parties  hereto or thereto  which is Affiliated
with the Company:

                  (i)      will  conflict   with,  or  result  in  a  breach  or
                           violation  of, or  constitute  a default  under,  the
                           Certificate   of   Incorporation,   Bylaws   or   any
                           Applicable  Law on the  part of the  Company  or will
                           conflict with, or result in a breach or violation of,
                           or  constitute  a  default   under,   or  permit  the
                           acceleration  of any  obligation  or liability in, or
                           but  for any  requirement  of  giving  of  notice  or
                           passage  of  time  or both  would  constitute  such a
                           conflict  with,  breach or  violation  of, or default
                           under,  or  permit  any  such  acceleration  in,  any
                           Contractual Obligation of the Company,

                  (ii)     will result in or permit the  creation or  imposition
                           of any  Lien  (except  to the  extent  set  forth  in
                           Section 3.1(c) of the  Disclosure  Schedule) upon any
                           property  now owned or leased by the  Company  or any
                           such other party, or

                  (iii)    will  require  any   Governmental   Authorization  or
                           Governmental Filing or Private Authorization,  except
                           for  filing  requirements  under  Applicable  Law  in
                           connection with the Merger and the  Transactions  and
                           as the Securities Act and applicable state securities
                           laws may apply to  compliance by the Company with the
                           provisions of this Agreement relating to the Merger.

         (d) The Company does not have any Subsidiaries.

         3.2 Financial and Other Information.

         (a) The  Company  has  furnished  to  VIALOG  copies  of the  financial
statements of the Company listed in Section  3.2(a) of the  Disclosure  Schedule
(the "Financial Statements").  The Financial Statements,  including in each case
the notes  thereto,  have been  prepared in  accordance  with GAAP  applied on a
consistent  basis  throughout the periods covered  thereby,  except as otherwise
noted therein, are true, correct and complete,  and fairly present the financial
condition and results of operations of the Company, on the bases therein stated,
as of the respective  dates  thereof,  and for the  respective  periods  covered
thereby subject, in the case of unaudited financial statements to the absence of
footnotes and normal nonmaterial audit adjustments and accruals.

         (b) Except as set forth in Section 3.2(b) of the  Disclosure  Schedule,
the Company does not own any capital stock or equity or proprietary  interest in
any other Entity or enterprise,  however organized and however such interest may
be denominated or evidenced.

                                       7
<PAGE>
         3.3 Changes in Condition.  Since the date of the most recent  financial
statements  forming  part of the  Financial  Statements,  except  to the  extent
specifically described in Section 3.3 of the Disclosure Schedule, there has been
no Adverse  Change in the  Company.  There is no Event to the  knowledge  of the
Company which Adversely  Affects,  or in the future might (so far as the Company
or the Stockholders can now reasonably  foresee)  Adversely Affect, the Company,
or the  ability of the Company to perform  any of the  obligations  set forth in
this  Agreement or any Collateral  Document  executed or required to be executed
pursuant hereto or thereto,  except for changes in general  economic or industry
conditions  (including the effect of competition) and to the extent set forth in
Section 3.3 of the Disclosure Schedule.

         3.4  Liabilities.  At the date of the most recent balance sheet forming
part of the Financial Statements, the Company had no obligations or liabilities,
past, present or deferred, accrued or unaccrued, fixed, absolute,  contingent or
other,  except as disclosed in such balance  sheet,  or the notes  thereto,  and
since  such  date  the  Company  has  not  incurred  any  such   obligations  or
liabilities,  other than  obligations and  liabilities  incurred in the ordinary
course of business  consistent  with past practice of the Company,  which do not
and, to the Company's  knowledge,  will not, in the aggregate,  Adversely Affect
the  Company  except to the extent set forth in  Section  3.4 of the  Disclosure
Schedule.

         The  Company  has not  Guaranteed  and is not  otherwise  primarily  or
secondarily liable in respect of any obligation or liability of any other Person
material to the Company,  except for endorsements of negotiable  instruments for
deposit in the  ordinary  course of business or as  disclosed in the most recent
balance sheet, or the notes thereto, forming part of the Financial Statements or
in Section 3.4 of the Disclosure Schedule.

         3.5 Title to Properties; Leases.

         (a) The Company has good  indefeasible  and  merchantable  title to all
assets,  tangible and intangible  (excluding leased property),  reflected on the
most recent  balance sheet  forming part of the Financial  Statements or held by
the Company for use in its  business if not so  reflected,  or purported to have
been acquired by the Company since such date, except inventory sold or depleted,
or property,  plant and other equipment used up or retired,  since such date, in
each case in the ordinary  course of business  consistent  with past practice of
the Company,  free and clear of all Liens,  except such as are  reflected in the
most recent balance sheet,  or the notes thereto,  forming part of the Financial
Statements or set forth in Section 3.5(a) of the Disclosure Schedule. Except for
financing  statements  evidencing Liens referred to in the preceding sentence (a
true, correct and complete list and description of which is set forth in Section
3.5(a) of the Disclosure  Schedule),  to the Company's  knowledge,  no financing
statements under the Uniform Commercial Code and no other filing which names the
Company as debtor or which  covers or purports  to cover any of the  property of
the Company is on file in any state or other  jurisdiction,  and the Company has
not  signed  or  agreed to sign any such  financing  statement  or filing or any
agreement  authorizing  any secured party  thereunder to file any such financing
statement  or filing.  Each Lease or other  occupancy or other  agreement  under
which the Company  holds real or  personal  property  has been duly  authorized,
executed and delivered by the Company,  and, to the Company's  knowledge without
investigation by the Company, by each of the parties thereto.

                                       8
<PAGE>
Each such Lease is a legal, valid and binding obligation of the Company, and, to
the Company's  knowledge  without  investigation  by the Company,  of each other
party thereto, enforceable in accordance with its terms. The Company has a valid
leasehold  interest in and enjoys peaceful and undisturbed  possession under all
Leases  pursuant  to which  it holds  any real  property  or  tangible  personal
property,  none of which contains any provision which would impair the Company's
ability to use such property as it is currently  used by the Company,  except as
described in Section 3.5(a) of the Disclosure  Schedule.  All of such Leases are
valid and subsisting  and in full force and effect.  Neither the Company nor, to
the  Company's  knowledge,  any  other  party  thereto,  is in  default  in  the
performance,  observance or fulfillment of any obligation, covenant or condition
contained in any such Lease.

         (b) The Company owns no real estate.  Section  3.5(b) of the Disclosure
Schedule  contains a true,  correct and complete  description of all real estate
leased by the Company and all Leases and an identification of all material items
of fixed  assets  and  machinery  and  equipment.  None of the fixed  assets and
machinery and equipment is subject to contracts of sale, and none is held by the
Company as lessee or as  conditional  sales venue under any Lease or conditional
sales contract and none is subject to any title retention  agreement,  except as
set forth in Section 3.5(b) of the Disclosure Schedule. The real property (other
than land), fixtures, fixed assets and machinery and equipment are in a state of
good repair and maintenance and are in good operating condition, reasonable wear
and tear excepted.

         (c) Except as set forth in Section 3.5(c) of the Disclosure Schedule:

                  (i)      nothing  has  come to the  attention  of the  Company
                           which would lead the Company to believe that all real
                           property  leased by the  Company  does not conform to
                           and  comply  with  all  applicable  title  covenants,
                           conditions,  restrictions  and  reservations  and all
                           Environmental   Laws  and  all   applicable   zoning,
                           wetlands, land use and other Applicable Laws, and

                  (ii)     neither the  Company,  nor, to the  knowledge  of the
                           Company  without  investigation  by the Company,  any
                           landlord,  tenant  or other  occupant  or user of any
                           such real  property,  has used such real property for
                           the  storage or disposal of  Hazardous  Materials  or
                           engaged in the  business of storing or  disposing  of
                           Hazardous  Materials,  except for use in the ordinary
                           course  of  business  of the  type  conducted  by the
                           Company.

         3.6  Compliance  with  Private  Authorizations.   Section  3.6  of  the
Disclosure Schedule sets forth a true, correct and complete list and description
of each Private Authorization which individually is material to the Company, all
of which are in full force and  effect.  The Company  has  obtained  all Private
Authorizations  which are  necessary  for the  ownership  by the  Company of its
properties  and the conduct of its business as now  conducted  or which,  if not
obtained and maintained, could, singly or in the aggregate, Adversely Affect the
Company.  The Company is not in breach or violation  of, or is in default in the
performance,  observance or fulfillment  of, any Private  Authorization,  and no
Event exists or has occurred,  which constitutes,  or but for any

                                       9
<PAGE>
requirement  of giving of notice or passage  of time or both  would  constitute,
such a breach,  violation default,  under any Contractual  Obligation or Private
Authorization,  except for such defaults, breaches or violations, as do not and,
to the Company's knowledge, will not have in the aggregate any Adverse Effect on
the Company or the ability of the Company to perform any of the  obligations set
forth in this  Agreement or any Collateral  Document  executed or required to be
executed  pursuant  hereto  or  thereto  or to  consummate  the  Merger  and the
Transactions.  No Private Authorization is the subject of any pending or, to the
Company's knowledge, threatened attack, revocation or termination.

         3.7 Compliance with Governmental Authorizations and Applicable Law.

         (a) Section  3.7(a) of the Disclosure  Schedule  contains a description
of:

                  (i)      all Legal  Actions  which are pending or,  other than
                           those  finally  adjudicated  or  settled on or before
                           December  31, 1997,  in which the Company,  or any of
                           its officers or directors,  is, or at any time during
                           the last three  calendar years ending on December 31,
                           1997 has been, engaged, or which involves,  or at any
                           time  during  such  period  involved,  the  business,
                           operations  or  properties  of the Company or, to the
                           Company's   knowledge,   which   is   threatened   or
                           contemplated against, or in any other manner relating
                           Adversely to, the Company or the business, operations
                           or properties,  or the officers or directors,  or any
                           of them in connection therewith; and

                  (ii)     each Governmental  Authorization to which the Company
                           is  subject  and  which   relates  to  the  business,
                           operations,   properties,   condition  (financial  or
                           other),  or results of  operations of the Company all
                           of which are in full force and effect.


         (b) Except as otherwise specifically described in Section 3.7(b) of the
Disclosure  Schedule the Company has obtained  all  Governmental  Authorizations
which are necessary for the ownership or uses of its  properties and the conduct
of its business as now  conducted  by the Company or which,  if not obtained and
maintained,  could singly or in the  aggregate,  have any Adverse  Effect on the
Company. No Governmental  Authorization is the subject of any pending or, to the
Company's knowledge,  threatened attack, revocation or termination.  Neither the
Company nor any officer or director (in connection with the business, operations
and properties of the Company) is or at any time since January 2, 1993 has been,
or is or has during such time been  charged  with,  or to the  knowledge  of the
Company,  is  threatened  or under  investigation  with  respect to any material
breach  or  violation  of,  or in  default  in the  performance,  observance  or
fulfillment  of, any  Governmental  Authorization  or any Applicable Law, and no
Event exists or has occurred to the Company's knowledge,  which constitutes,  or
but for any  requirement  of giving of notice or  passage  of time or both would
constitute, such a breach, violation or default, under

                                       10
<PAGE>

                  (i)      any Governmental Authorization or any Applicable Law,
                           except for such  breaches,  violations or defaults as
                           do  not  and,  to  the  Company's  knowledge  without
                           investigation  by the  Company,  will not have in the
                           aggregate  any  Adverse  Effect on the Company or the
                           ability  of  the   Company  to  perform  any  of  the
                           obligations  set  forth  in  this  Agreement  or  any
                           Collateral   Document  executed  or  required  to  be
                           executed pursuant hereto or thereto, or to consummate
                           the Merger and the Transactions, or

                  (ii)     any requirement of any insurance carrier,  applicable
                           to its business, operations or properties.

         (c)  With  respect  to  matters,  if any,  of a nature  referred  to in
Sections 3.7(a) or 3.7(b) of the Disclosure  Schedule,  all such information and
matters set forth in the Disclosure Schedule, individually and in the aggregate,
if adversely  determined  against the  Company,  will not  Adversely  Affect the
Company,  or the ability of the Company to perform  its  obligations  under this
Agreement or any Collateral Documents or required to be executed pursuant hereto
or thereto or to consummate the Merger and the Transactions.

         3.8 Intangible Assets.

         (a) The Company owns or possesses or otherwise has the right to use all
Governmental  Authorizations  and  other  Intangible  Assets  necessary  for the
present and to the knowledge of the Company without investigation by the Company
future  conduct of its business  without any known  conflict  with the rights of
others.  The conduct of the present business and to the Company's  knowledge the
continuation  of the present  business by the Company is not dependent  upon any
one or more, or all, of such  Governmental  Authorizations  and other Intangible
Assets or rights with  respect to any of the  foregoing,  except as set forth in
Section 3.8(a) of the Disclosure Schedule.

         (b)  Section  3.8(b)  of the  Disclosure  Schedule  sets  forth a true,
correct and complete description of all of such Governmental  Authorizations and
other  Intangible  Assets or rights  with  respect  thereto,  including  without
limitation the nature of the Company's  interest in each and the extent to which
the same have been duly registered in the offices as indicated therein.

         3.9 Related  Transactions.  Section 3.9 of the Disclosure Schedule sets
forth a true, correct and complete description of any Contractual  Obligation or
transaction,  not fully  discharged  or  consummated,  as the case may be, on or
before the beginning of the Company's  current fiscal year,  between the Company
and any of its officers, directors, employees, stockholders, or any Affiliate of
any thereof  (other  than  reasonable  compensation  for  services as  officers,
directors and employees and reimbursement for out-of-pocket  expenses reasonably
incurred in support of the Company's  business),  now existing or which,  at any
time since January 1, 1997,  existed or occurred,  including without  limitation
any providing for the  furnishing of services to or by,  providing for rental of
property,  real,  personal or mixed, to or


                                       11
<PAGE>
from, or providing for the lending or borrowing of money to or from or otherwise
requiring payments to or from, any officer,  director,  stockholder or employee,
or  any  Affiliate  of  any  thereof.  All  such  Contractual   Obligations  and
transactions  were and are on terms  and  conditions  no less  favorable  to the
Company than would be customary for such between  Persons who are not Affiliates
or upon  terms and  conditions  on which  similar  Contractual  Obligations  and
transactions  with Persons who are not Affiliates could fairly and reasonably be
expected to be entered into, except as otherwise set forth in Section 3.9 of the
Disclosure Schedule.

         3.10 Insurance.

         (a) Section  3.10(a) of the  Disclosure  Schedule  lists all  insurance
policies maintained by the Company and includes insurers' names, policy numbers,
expiration  dates,  risks  insured  against,  amounts  of  coverage,  the annual
premiums, deductibles and self-insured retention.

         (b) The Company is not in breach or  violation  of or in default  under
any such policy,  and all  premiums  due thereon  have been paid,  and each such
policy or a  comparable  replacement  policy  will  continue  to be in force and
effect up to and including the Effective Time. The insurance  policies so listed
and  identified  are of a nature and scope and in amounts  sufficient to prevent
the Company from being under  insured and becoming a coinsurer  within the terms
of such  policies.  Except as set forth in  Section  3.10(a)  of the  Disclosure
Schedule,  the Company  has not,  within the past five (5) years,  been  refused
insurance by any insurance carrier to which it has applied for insurance.

         3.11 Tax Matters.

         (a) The Company has in accordance  with all  Applicable  Laws filed all
Tax Returns  which are  required  to be filed,  and has paid,  or made  adequate
provision for the payment of, all Taxes which have or may become due and payable
pursuant to said  Returns  and all other  governmental  charges and  assessments
received  to  date.  The Tax  Returns  of the  Company  have  been  prepared  in
accordance with all Applicable Laws and generally accepted principles applicable
to taxation  consistently  applied.  All Taxes which the Company are required by
law to withhold and collect have been duly  withheld and collected and have been
paid over, in a timely manner,  to the proper  Authorities to the extent due and
payable.  The Company has not executed any waiver to extend,  or otherwise taken
or failed to take any  action  that  would  have the  effect of  extending,  the
applicable  statute of  limitations  in respect  of any Tax  liabilities  of the
Company for the fiscal year prior to and  including the most recent fiscal year.
Adequate  provision has been made on the most recent  balance sheet forming part
of the Financial  Statements for all Taxes of any kind,  including  interest and
penalties in respect thereof, whether disputed or not, and whether past, current
or deferred, accrued or unaccrued, fixed, contingent,  absolute or other, and to
the knowledge of the Company there are no  transactions  or matters or any basis
which might or could result in additional Taxes of any nature to the Company for
which an adequate  reserve  has not been  provided on such  balance  sheet.  The
Company has at all times been taxable as a Subchapter  S  corporation  under the
Code,  except  as  otherwise  set forth in  Section  3.11(a)  of the

                                       12
<PAGE>

Disclosure Schedule.  The Company has not ever been a member of any consolidated
group for Tax purposes, except as set forth in Section 3.11(a) of the Disclosure
Schedule.

         (b) The Company  has paid all Taxes  which have become due  pursuant to
its  Returns  and has paid all  installments  (to the extent  required  to avoid
material underpayment penalties) of estimated Taxes due and payable.

         (c) From the end of its most recent  fiscal year to the date hereof the
Company has not made any payment on account of any Taxes except regular payments
required in the ordinary  course of business with respect to current  operations
or property presently owned.

         (d) The  information  shown on the  federal  income Tax  Returns of the
Company (true,  correct and complete  copies of which have been furnished by the
Company to VIALOG)  is true,  correct  and  complete  and fairly and  accurately
reflects the  information  purported  to be shown.  Federal and state income Tax
Returns  of the  Company  have  been  audited  by the  IRS or  applicable  state
Authority for the taxable periods set forth in Section 3.11(d) of the Disclosure
Schedules,  and the Company has not been notified  regarding any pending  audit,
except as shown in Section 3.11(d) of the Disclosure Schedule.

         (e)  The  Company  is not a  party  to any  tax  sharing  agreement  or
arrangement,  except as set forth in Section 3.11(e) of the Disclosure Schedule.
The  Company  has never (i) filed a  consent  under  Section  341(f) of the Code
concerning  collapsible  corporations  or (ii)  undergone an "ownership  change"
within the meaning of Section 382(g) of the Code, except as set forth in Section
3.11 (e) of the Disclosure Schedule.

         3.12 Employee Retirement Income Security Act of 1974.

         (a) Section 3.12(a) of the Disclosure Schedule sets forth a list of all
Plans and Benefit Arrangements  maintained by the Company (which for purposes of
this  Section  3.12 will  include any ERISA  Affiliate  with respect to any Plan
subject to Title IV of ERISA).  As to all such Plans and  Benefit  Arrangements,
and except as disclosed in such Section 3.12(a) of the Disclosure Schedule:

                  (i)      all Plans and Benefit  Arrangements comply currently,
                           and  have  complied  in the  past,  in  all  material
                           respects  both as to form and  operation,  with their
                           terms and with all  Applicable  Laws, and the Company
                           has not  received  any  outstanding  notice  from any
                           Authority questioning or challenging such compliance,

                  (ii)     all  necessary  governmental  approvals for each Plan
                           and  Benefit  Arrangement  have  been  obtained;  the
                           Internal  Revenue  Service  has  issued  a  favorable
                           determination  as to the tax qualified status of each
                           Plan  intended to comply with  section  401(a) of the
                           Code and each amendment thereto, and a recognition of
                           exemption from federal income  taxation under Section
                           501(a) of the Code of each

                                       13
<PAGE>
                           Plan  which  constitutes  a  funded  welfare  plan as
                           defined in Section  3(1) of ERISA;  and  nothing  has
                           occurred since the date of each such determination or
                           recognition   that  would   adversely   affect   such
                           qualification.

                  (iii)    no Plan which is  subject to Part 3 of  Subtitle B of
                           Title 1 of  ERISA or  Section  412 of the Code had an
                           accumulated funding deficiency (as defined in Section
                           302(a)(2)  of ERISA  and  Section  412 of the  Code),
                           whether or not waived, as of the last day of the most
                           recently completed fiscal year of such Plan,

                  (iv)     there are no "prohibited  transactions" (as described
                           in Section 406 of ERISA or Section  4975 of the Code)
                           with  respect to any Plan for which the  Company  has
                           any liability,  nor are any of the assets of any Plan
                           invested in  employer  securities  or  employer  real
                           property,

                  (v)      no  Plan is  subject  to  Title  IV of  ERISA,  or if
                           subject,  there have been no "reportable  events" (as
                           described in Section 4043 of ERISA) as to which there
                           is any material risk of termination of such Plan,

                  (vi)     no  material  liability  to the  PBGC  has been or is
                           expected by the Company to be incurred by the Company
                           with respect to any Plan, and there has been no event
                           or  condition  which  presents  a  material  risk  of
                           termination of any Plan by the PBGC,

                  (vii)    with  respect  to each  Plan  subject  to Title IV of
                           ERISA,  the amount for which  Company would be liable
                           pursuant to the provisions of Sections 4062,  4063 or
                           4064 of ERISA would be zero if such Plans  terminated
                           on the date of this Agreement,

                  (viii)   no  notice of  intent  to  terminate  a Plan has been
                           filed with, nor has any Plan been terminated pursuant
                           to the provisions of Section 4041 of ERISA,

                  (ix)     the PBGC has not instituted  proceedings to terminate
                           (or appointed a trustee to  administer) a Plan and no
                           event has  occurred or  condition  exists which might
                           constitute  grounds  under the  provisions of Section
                           4042  of  ERISA  for  the   termination  of  (or  the
                           appointment  of a  trustee  to  administer)  any such
                           Plan,

                  (x)      no Plan or Benefit Arrangement covers any employee or
                           former  employee of the Company  that could give rise
                           to  the  payment  of any  amount  that  would  not be
                           deductible  pursuant to the terms of section  280G of
                           the Code,

                                       14
<PAGE>

                  (xi)     there are no Claims  (other than  routine  claims for
                           benefits) pending or threatened involving any Plan or
                           Benefit Arrangement or any of the assets thereof,

                  (xii)    except  as  set  forth  in  Section  3.12(a)  of  the
                           Disclosure Schedule (which entry, if applicable, will
                           indicate  the  present  value  of  accumulated   plan
                           liabilities  calculated in a manner  consistent  with
                           FAS  106 and  the  actual  annual  expense  for  such
                           benefits  for  each of the last  two (2)  years)  and
                           pursuant to the provisions of COBRA, the Company does
                           not   maintain  any  Plan  that   provides   benefits
                           described  in  Section  3(1) of ERISA  to any  former
                           employees or retirees of the Company,

                  (xiii)   all reports, returns and similar items required to be
                           filed with any Authority or  distributed to employees
                           and/or  Plan  participants  in  connection  with  the
                           maintenance  or  operation  of any  Plan  or  Benefit
                           Arrangement  have  been  duly and  timely  filed  and
                           distributed, and there have been no acts or omissions
                           by the  Company,  which  have  given  rise  to or may
                           reasonably   be  expected  to  give  rise  to  fines,
                           penalties,  taxes or related  charges under  Sections
                           502(c),  502(i)  or 4071 or  ERISA or  Chapter  43 or
                           Section  6039D of the Code for which the  Company may
                           be liable,

                  (xiv)    neither  the  Company  nor  any  of  its   respective
                           directors,  officers or employees has committed,  nor
                           to the best of the Company's  knowledge has any other
                           fiduciary  committed,  any  breach  of the  fiduciary
                           responsibility  standards imposed by ERISA that would
                           subject  the   Company  or  any  of  its   respective
                           directors,  officers or employees to liability  under
                           ERISA,

                  (xv)     to the  extent  that the most  recent  balance  sheet
                           forming  part of the  Financial  Statements  does not
                           include a pro rata amount of the contributions  which
                           would  otherwise  have been made in  accordance  with
                           past  practices  for the Plan years which include the
                           Merger  Closing  Date,  such amounts are set forth in
                           Section 3.12(a) of the Disclosure Schedule,

                  (xvi)    the  Company  has  furnished  to VIALOG a copy of the
                           three most  recently  filed annual  reports (IRS Form
                           5500) series and accountant's opinion, if applicable,
                           for each Plan (and the three  most  recent  actuarial
                           valuation  reports  for each  Plan,  if any,  that is
                           subject  to Title IV of ERISA),  and all  information
                           provided by the Company to any actuary in  connection
                           with the preparation of any 



                                       15
<PAGE>

                           such actuarial valuation report was true, correct and
                           complete in all material respects,

         (b) The Company is not and never has been a party to any  Multiemployer
Plan or made contributions to any such plan.

         (c) Section 3.12(c) of the Disclosure  Schedule sets forth the basis of
funding,  and the current status of, any past service  liability with respect to
each Employment Arrangement to which the same is applicable.

         3.13  Absence of  Sensitive  Payments.  The  Company has not and to the
Company's   knowledge,   none  of  its   officers,   directors,   employees   or
Representatives  have,  on behalf of the  Company,  (a) made any  contributions,
payments or gifts to or for the private use of any governmental office, employee
or agent where either the payment or the purpose of such  contribution,  payment
or gift is illegal  under the laws of the United States or the  jurisdiction  in
which made, (b)  established or maintained any unrecorded  fund or asset for any
purpose or made any false or  artificial  entries on its books,  or (c) made any
payments to any person with the intention or understanding that any part of such
payment  was to be  used  for any  purpose  other  than  that  described  in the
documents supporting the payment.

         3.14  Inapplicability  of  Specified  Statutes.  The  Company  is not a
"holding  company",  or a "subsidiary  company" or an  "affiliate" or a "holding
company", as such terms are defined in the Public Utility Holding Company Act of
1935,  as amended,  or an  "investment  company" or a company  Controlled  by or
acting  on behalf of an  "investment  company",  as  defined  in the  Investment
Company Act of 1940, as amended.

         3.15 Authorized and Outstanding Capital Stock.

         (a) The authorized and  outstanding  capital stock of the Company is as
set forth in Section 3.15(a) of the Disclosure Schedule. All of such outstanding
capital stock has been duly  authorized  and validly  issued,  is fully paid and
non-assessable and is not subject to any preemptive or similar rights.  There is
neither  outstanding  nor has the Company agreed to grant or issue any shares of
its  capital  stock or any Option  Security  or  Convertible  Security,  and the
Company  is not a party  to or is  bound  by any  agreement,  put or  commitment
pursuant to which it is obligated to purchase,  redeem or otherwise  acquire any
shares of capital stock or any Option Security or Convertible Security.  Between
the date of this  Agreement and the Effective  Time, the Company will not issue,
sell or purchase or agree to issue,  sell or purchase  any capital  stock or any
Option Security or Convertible Security of the Company.

         (b) All of the outstanding capital stock of the Company is owned by the
Stockholders as set forth in Section 3.15(b) of the Disclosure Schedule, and is,
to the Company's knowledge,  free and clear of all Liens, except as set forth in
Section 3.15(b) of the Disclosure Schedule.

                                       16
<PAGE>

         3.16 Employment Arrangements.

         (a) The Company has no obligation  or  liability,  contingent or other,
under any Employment  Arrangement  (whether or not listed in Section  3.12(a) of
the  Disclosure  Schedule),  other than  those  listed or  described  in Section
3.16(a) of the  Disclosure  Schedule.  The Company is not now or during the past
five (5) years  has not been  subject  to or  involved  in or, to the  Company's
knowledge,  threatened with any election for the  certification  of a bargaining
representative  for any employees,  petitions  therefor or other  organizational
activities, including but not limited to voluntary requests for recognition as a
bargaining representative,  or organizational campaigns of any nature, except as
described in Section 3.16(a) of the Disclosure  Schedule.  None of the employees
of the Company are now, or during the past five (5) years have been, represented
by any labor union or other employee  collective  bargaining  organization.  The
Company is not a party to any labor or other  collective  bargaining  agreement,
and there are no pending grievances, disputes or controversies with any union or
any other employee collective bargaining organization of such employees,  or, to
the Company's knowledge,  threats of strikes, work stoppages or slowdowns or any
pending   demands  for  collective   bargaining  by  any  union  or  other  such
organization. The Company has performed all obligations required to be performed
under all  Employment  Arrangements  and is not in breach or  violation of or in
default or arrears under any of the terms, provisions or conditions thereof.

         (b) Except as set forth in Section 3.16(b) of the Disclosure  Schedule,
no employee will accrue or receive additional  benefits,  service or accelerated
rights to payments of benefits under any Employment  Arrangement,  including the
right to receive any parachute payment,  as defined in Section 280G of the Code,
or become entitled to severance,  termination allowance or similar payments as a
direct result of the transactions contemplated by this Agreement.

         (c) The Company considers its relationships  with employees to be good,
and  except as set forth in  Section  3.16(c) of the  Disclosure  Schedule,  the
Company has not  experienced a work slowdown or stoppage due to labor  problems.
The  Company has not  received  notice of any claim that it has failed to comply
with any federal or state law, or to the  Company's  knowledge is it the subject
of any investigation by any federal or state agency to determine compliance with
any federal or state law,  relating to the  employment  of labor,  including any
provisions  relating  to wages,  hours,  collective  bargaining,  the payment of
taxes, discrimination,  equal employment opportunity, employment discrimination,
worker injury and/or occupational safety, nor to the knowledge of the Company is
there any basis for such a claim.

         (d) The Company  has not  conducted,  and on or prior to the  Effective
Time will not conduct,  a "plant  closing" or "mass  layoff" of employees of the
Company as defined by the Worker  Adjustment and Retraining  Notification Act of
1988 (the "WARN Act"), 29 U.S.C. 2101-2109 as amended, or discharge,  layoff, or
reduce  the hours of work,  of  employees  in a  sufficient  number or manner to
trigger any state or local law or regulation  conditioning  or regulating in any
manner the discharge,  layoff, or reduction in hours of employees or the closing
of a facility, plant, workplace, division or department, from the date


                                       17
<PAGE>

hereof  or  through  the  Effective  Time  or  during  the  twelve-month  period
immediately prior thereto.

         3.17 Material Agreements.

         (a)  Listed on  Section  3.17(a)  of the  Disclosure  Schedule  are all
Material  Agreements  relating to the ownership or operation of the business and
property  of the Company  presently  held or used by the Company or to which the
Company  is a party or to which it or any or its  property  is subject or bound.
True,  complete and correct copies of each of the Material  Agreements have been
furnished by the Company to VIALOG (or true,  complete and correct  descriptions
thereof have been set forth in Section  3.17(a) of the Disclosure  Schedule,  if
any such  Material  Agreements  are oral).  All of the Material  Agreements  are
valid,  binding and legally  enforceable  obligations of the Company  (except as
such  enforceability  may be  subject  to  bankruptcy,  moratorium,  insolvency,
reorganization,  arrangement,  voidable  preference,  fraudulent  conveyance and
other  similar laws  relating to or affecting the rights of creditors and except
as the same may be subject to the effect of the general  principles  of equity),
and the Company is validly and  lawfully  operating  its business and owning its
property  under each of the Material  Agreements.  The Company has duly complied
with all of the terms and conditions of each Material Agreement and has not done
or  performed,  or failed to do or perform  (and there is no pending  or, to the
knowledge of the Company,  threatened  Claim that the Company has not  complied,
done and  performed  or failed to do and  perform)  any act the  effect of which
would be to  invalidate  or  provide  grounds  for the other  party  thereto  to
terminate  (with or  without  notice,  passage  of time or both)  such  Material
Agreement  or impair the  rights or  benefits,  or  increase  the costs,  of the
Company, under any of the Material Agreements.

         (b) Each Material  Agreement,  if any, set forth in Section  3.17(a) of
the Disclosure  Schedule calling for the delivery of goods or merchandise or the
performance  of services can be satisfied or performed by the Company at margins
providing an  operating  profit,  except as set forth in Section  3.17(b) of the
Disclosure Schedule.

         3.18 Ordinary Course of Business.  The Company, from the earlier of the
date of the most recent  balance sheet forming part of the Financial  Statements
or December  31,  1997 to the date of this  Agreement,  and until the  Effective
Time,  except as may be described in Section 3.18 of the Disclosure  Schedule or
as may be required or permitted  expressly by the terms of this  Agreement or as
may be approved in writing by VIALOG:

         (a) has  operated,  and will  continue to operate,  its business in the
normal,  usual  and  customary  manner in the  ordinary  and  regular  course of
business, consistent with prior practice,

         (b) has not sold or  otherwise  disposed of, or  contracted  to sell or
otherwise  dispose of, and will not sell or otherwise  dispose of or contract to
sell or otherwise dispose of, any of its properties or assets, other than in the
ordinary course of business,

                                       18
<PAGE>

         (c)  except  in each case in the  ordinary  course  of  business  or as
detailed as transactions  not in the ordinary  course in the Company's  business
plan set  forth as  Section  3.18 of the  Disclosure  Schedule,  and  except  as
expressly otherwise contemplated hereby,

                  (i)      has not incurred  and will not incur any  obligations
                           or liabilities (fixed, contingent or other),

                  (ii)     has  not   entered   and  will  not  enter  into  any
                           commitments, and

                  (iii)    has not  canceled  and will not  cancel  any debts or
                           claims,

         (d) has not made or committed  to make,  and will not make or commit to
make,  any additions to its property or any purchases of machinery or equipment,
except for normal maintenance and replacements,

         (e) has not discharged or satisfied, and will not discharge or satisfy,
any Lien and has not paid and will not pay any obligation or liability (absolute
or contingent)  other than current  liabilities or obligations  under  contracts
then existing or thereafter entered into in the ordinary course of business, and
commitments  under Leases  existing on that date or incurred  since that date in
the ordinary course of business,

         (f)  except in the  ordinary  course,  has not  increased  and will not
increase the compensation  payable or to become payable to any of its directors,
officers,  employees,  advisers,  consultants,  salesmen or agents or  otherwise
alter, modify or change the terms of their employment or engagement,

         (g) has not suffered any material damage,  destruction or loss (whether
or not covered by  insurance)  or any  acquisition  or taking of property by any
Authority,

         (h) has not waived,  and will not waive,  any rights of material  value
without fair and adequate consideration,

         (i) has not experienced any work stoppage,

         (j) has not  entered  into,  amended or  terminated  and will not enter
into,  amend  or  terminate  any  Lease,  Governmental  Authorization,   Private
Authorization,   Material   Agreement,   Employment   Arrangement,   Contractual
Obligation or transaction  with any Affiliate,  except for  terminations  in the
ordinary course of business in accordance with the terms thereof,

         (k) has not amended or terminated and will not amend or terminate,  and
has kept and will keep in full force and  effect  including  without  limitation
renewing  to the  extent  the same  would  otherwise  expire or  terminate,  all
insurance policies and coverage,

                                       19
<PAGE>

         (l)  has  not  entered  into,  and  will  not  enter  into,  any  other
transaction  or series or  related  transactions  which  individually  or in the
aggregate is material to the Company, except in the ordinary course of business,
and

         (m) has not, nor has any affiliate (as defined in Section 517.021(1) of
the Florida Statutes),  transacted  business with the government of Cuba or with
any person or affiliate located in Cuba.

         3.19 Bank Accounts; Etc. A true and correct and complete list as of the
date  of  this  Agreement  of all  banks,  trust  companies,  savings  and  loan
associations  and brokerage  firms in which the Company has an account or a safe
deposit box and the names of all Persons  authorized  to draw  thereon,  to have
access thereto, or to authorize  transactions therein, the names of all Persons,
if any,  holding powers of attorney from the Company and a summary  statement as
to the terms thereof has been previously delivered to VIALOG.

         3.20 Adverse Restrictions. The Company is not a party to or subject to,
and its  property is not subject to, any current  Applicable  Law,  Governmental
Authorization,   Contractual  Obligation,   Employment   Arrangement,   Material
Agreement or Private  Authorization,  or any other  obligation or restriction of
any kind or character,  or any aggregation thereof,  which impairs the Company's
ability to conduct its  business as it is  currently  being  conducted  or which
could, with reasonable foreseeability,  have any Adverse Effect on the Company's
business  as  currently  conducted,  except as set forth in Section  3.20 of the
Disclosure Schedule.

         3.21  Broker or Finder.  No Person  assisted  in or  brought  about the
negotiation  of  this  Agreement,  the  Merger  or  the  subject  matter  of the
Transactions  in the  capacity  of  broker,  agent or finder  or in any  similar
capacity on behalf of the Company or any Stockholder.

         3.22 Personal Injury or Property Damage;  Warranty Claims;  Etc. Except
as set forth in Section 3.22 of the Disclosure Schedule,  neither the Company or
any  Person  acting  for or on  its  behalf  including  without  limitation  any
insurance  carrier,  has at any time since December 31, 1997, paid, and there is
not now pending or, to the  knowledge of the Company,  threatened  any Claim (or
any basis for any such  Claim)  relating  to, any damages to any third party for
injuries to Persons or damage to property, or for breach of warranty,  which, in
the case of  pending  or  threatened  Claims,  if  determined  Adversely  to the
Company, individually or in the aggregate (taking into account unasserted Claims
of similar nature), could have any Adverse Effect on the Company.

         3.23 Environmental Matters.

         (a) Except as set forth in Section 3.23(a) of the Disclosure  Schedule,
the Company:

                  (i)      is in  compliance  in all material  respects with all
                           Environmental  Laws and has not been notified that it
                           is liable or potentially liable, has not received any
                           request  for  information  or  other   correspondence

                                       20
<PAGE>

                           concerning  any  site  or  facility,  and  is  not  a
                           "responsible   party"  or  "potentially   responsible
                           party"   under   the   Comprehensive    Environmental
                           Response,  Compensation and Liability Act of 1980, as
                           amended,  the Resource  Conservation  Recovery Act of
                           1976, as amended, or any similar state law,

                  (ii)     has not entered into or received any consent  decree,
                           compliance order,  administrative  order or notice of
                           Lien relating to Environmental Requirements,

                  (iii)    is not a party in  interest  or in default  under any
                           judgment,  order,  writ,  injunction or decree or any
                           final order relating to  Environmental  Requirements,
                           and

                  (iv)     has obtained all material Governmental Authorizations
                           and   Private   Authorizations   (including   without
                           limitation  all  Environmental  Permits) and made all
                           Governmental  Filings  which are required to be filed
                           by the Company  for the  ownership  of its  property,
                           facilities  and  assets  and  the  operation  of  its
                           businesses  under all  Environmental  Laws, is and at
                           all times since its organization has been in material
                           compliance  with the terms and conditions of all such
                           required Governmental and Private  Authorizations and
                           all  Environmental  Requirements,   and  is  not  the
                           subject of or, to the Company's knowledge, threatened
                           with any Legal Action  involving a demand for damages
                           or any other  potential  liability  with  respect  to
                           violations   or   breaches   of   any   Environmental
                           Requirement.

         (b) Except as set forth in Section 3.23(b) of the Disclosure Schedule:

                  (i)      no spill, disposal,  release,  burial or placement of
                           Hazardous  Materials  in the  soil,  air or water has
                           occurred on any premises leased, operated or occupied
                           by the Company  during the period that such  premises
                           were  leased,  operated  or occupied by it or, to the
                           knowledge of the Company without investigation by the
                           Company,  at any other time or at any other  facility
                           or  site  to  which   Hazardous   Materials  from  or
                           generated  by the  Company may have been taken at any
                           time in the past, and

                  (ii)     there has been no spill, disposal, release, burial or
                           placement of Hazardous Materials, in the soil, air or
                           water  on  any  property,  to  the  knowledge  of the
                           Company without investigation, which could reasonably
                           be   expected   to   result   or  has   resulted   in
                           contamination   of  or  beneath  any   properties  or
                           facilities owned, leased, operated or occupied by the
                           Company  during the period that such  facilities  and


                                       21
<PAGE>

                           properties were owned,  leased,  operated or occupied
                           by it or, at any other time.

         (c) Except as set forth in Section 3.23(c) of the Disclosure  Schedule,
the Company has no above-ground or underground tanks on property owned,  leased,
operated or occupied by it for the storage of Hazardous Materials.

         (d) There has not been,  and at or prior to the Effective  Time,  there
will not be,  any past or present  Events or plans of the  Company or any of its
predecessors,  which,  individually or in the aggregate,  constitute a breach of
any Environmental  Requirements or which,  individually or in the aggregate, may
interfere  with  or  prevent   continued   compliance  with  all   Environmental
Requirements,  or which,  individually or in the aggregate, may give rise to any
common law,  statutory or other legal liability,  or otherwise form the basis of
any Claim,  assessment or remediation cost, fine, penalty or assessment based on
or  related  to  the  transportation,   transmission,   gathering,   processing,
distribution,  use, treatment,  storage,  disposal or handling, or the emission,
discharge,  release or threatened release into the environment, of any Hazardous
Material with respect to the Company or any of its predecessors or its business,
operations or property which could have any Adverse Effect on the Company.

         (e) Except as set forth in Section 3.23(e) of the Disclosure  Schedule,
the Company has not used any Hazardous Materials in the conduct of its business.
To the extent that any Hazardous Materials are so set forth,  Section 3.23(e) of
the Disclosure Schedule also sets forth (i) a description of Hazardous Materials
used, (ii) the annual volume of each of the Hazardous  Materials used, (iii) the
years during which each of the Hazardous  Materials used occurred,  and (iv) the
Persons to whom such Hazardous  Materials were  transferred  and/or  transported
after such use.

         (f) Section 3.23(f) of the Disclosure  Schedule contains a complete and
correct  description of all Hazardous  Materials  generated by the Company which
are not set forth in Section 3.23(e),  the approximate annual volumes of each of
the Hazardous  Materials,  and all Persons to whom such Hazardous Materials have
been transferred and/or transported.

         (g) No site assessment,  audit,  study, test or other investigation has
been conducted by or on behalf of the Company,  nor has the Company received any
notice  from  any   governmental   agency,   or  financial   institution  as  to
environmental matters at any property owned, leased, operated or occupied by the
Company, except as set forth in Section 3.23(g) of the Disclosure Schedule.

         3.24 This Section Intentionally Left Blank.

         3.25 Solvency. As of the execution and delivery of this Agreement,  the
Company is and, as of the Effective Time, will be solvent.

         3.26  Public  Utilities  Commission.  The  Minnesota  Public  Utilities
Commission  has issued an order  finding  that the  Company  is not a  telephone
company  pursuant  to Chapter  237 of

                                       22
<PAGE>

the Minnesota Statutes (the "Minnesota Telephone Act") and is not subject to the
Minnesota Telephone Act.

         3.27 Compliance with Regulations Relating to Securities Credit. None of
the borrowings,  if any, of the Company were incurred or used for the purpose of
purchasing or carrying any security which at the date of its  acquisitions  was,
or any security which now is, margin stock or other margin  security  within the
meaning of  Regulations  T of the Margin  Rules or a "security  that is publicly
held,"  within  the  meaning of the Margin  Rules,  and the cash  portion of the
proceeds  from the  consummation  of the  Transactions  will not be used for the
purpose of purchasing or carrying any margin stock or other margin security,  or
a "security that is publicly held", or any security issued by VIALOG,  or in any
way which would involve the Company in any  violation of the Margin  Rules,  and
the Company owns no margin stock or other margin  security,  or a "security that
is publicly  held",  and the Company has no present  intention of acquiring  any
margin stock or other margin security, or any "security that is publicly held".

         3.28 This Section Intentionally Left Blank.

         3.29  Continuing  Representations  and  Warranties.  Except  for  those
representations  and  warranties  which speak as of a specific  date, all of the
representations  and warranties of the Company set forth in this Article will be
true and correct in all material  respects at the  Effective  Time with the same
force and effect as though made on and as of that date and those,  if any, which
speak as a specific date will be true and correct in all material respects as of
such date.

         3.30 This Section Intentionally Left Blank.

         3.31  Predecessor  Status;  Etc.  Set  forth  in  Section  3.31  of the
Disclosure  Schedule is a listing of all names of all  predecessor  companies of
the Company and the names of any Entities from which,  since  December 31, 1992,
the  Company  previously  acquired  material  properties  or  assets.  Except as
disclosed in Section 3.31 of the Disclosure Schedule, the Company has never been
a Subsidiary or division or another Entity,  nor a part of an acquisition  which
was later rescinded.  None of the Company or the Stockholders has ever owned any
securities of VIALOG nor,  except as set forth in Section 3.31 of the Disclosure
Schedule,  has there been,  since  December  31,  1992,  any sale or spin-off of
material assets by the Company other than in the ordinary course of business.


                                     ARTICLE
                                        4
                        REPRESENTATIONS AND WARRANTIES OF
                                THE STOCKHOLDERS


         The  Stockholders  represent,  warrant and covenant to, and agree with,
VIALOG and VIALOG Merger Subsidiary as follows:

                                       23
<PAGE>

         4.1 Enforceability. This Agreement has been duly executed and delivered
by the Stockholders and constitutes,  and each Collateral  Document  executed or
required to be  executed by the  Stockholders  pursuant  hereto or thereto  when
executed and delivered by the  Stockholders  will  constitute  legal,  valid and
binding  obligations of the  Stockholders,  enforceable in accordance with their
respective  terms (except as such  enforceability  may be subject to bankruptcy,
moratorium,  insolvency,   reorganization,   arrangement,  voidable  preference,
fraudulent conveyance and other similar laws relating to or affecting the rights
of creditors  and except as the same may be subject to the effect of the general
principles of equity).

         4.2  Title  to  Shares.  Except  as set  forth  in  Section  4.2 of the
Disclosure  Schedule  (all of which  exceptions  will be removed,  satisfied  or
discharged no later than the Merger Closing), the Stockholders own and have good
and  merchantable  title to those  Shares  owned by the  Stockholders  and to be
exchanged pursuant to this Agreement, free and clear or all Liens.

         4.3 No Conflict;  Required Filings and Consents. Except as set forth in
Section 4.3 of the  Disclosure  Schedule  neither the  execution and delivery of
this  Agreement or any Collateral  Document  executed or required to be executed
pursuant  hereto  or  thereto,  nor  the  consummation  of the  Merger  and  the
Transactions, nor compliance with the terms, conditions and provisions hereof or
thereof by the Stockholders:

         (a) will  materially  conflict with, or result in a breach or violation
of,  or  constitute  a  default  under,  any  Applicable  Law on the part of the
Stockholders  or will conflict with, or result in a material breach or violation
of,  or  constitute  a  material  default  in  the  performance,  observance  or
fulfillment of, or a material  default under, or permit the  acceleration of any
obligation or liability in, or, but for any requirements of notice or passage of
time or both would  constitute such a conflict with,  breach or violation of, or
default under, or permit any such acceleration in, any Contractual Obligation of
the Stockholders,

         (b) will  result in or permit the  creation or  imposition  of any Lien
upon any property or asset of the  Stockholders  used or now  contemplated to be
used by the Company, or

         (c) will require any Governmental  Authorization or Governmental Filing
or Private Authorization,  except for filing requirements in connection with the
Merger  and the  Transactions  and as the  Securities  Act or  applicable  state
securities laws may apply to compliance by the Stockholders  with the provisions
of this  Agreement  relating to the Merger or as set forth in Section 4.3 of the
Disclosure Schedule.

                                       24
<PAGE>


                                     ARTICLE
                                       5
                    REPRESENTATIONS AND WARRANTIES OF VIALOG
                          AND VIALOG MERGER SUBSIDIARY


         VIALOG and VIALOG Merger Subsidiary, jointly and severally,  represent,
warrant and covenant to, and agree with, the Company as follows:

         5.1  Organization  and  Qualification.  VIALOG  is a  corporation  duly
organized,   validly   existing  and  in  good   standing   under  the  laws  of
Massachusetts. VIALOG Merger Subsidiary is a corporation duly organized, validly
existing and in good standing under the laws of Delaware.

         5.2 Power and Authority. Except for such consents of Authorities as may
be necessary in connection with  change-of-control  transactions with respect to
Governmental  Authorities  listed in Section 3.1(c) of the Disclosure  Schedule,
each of  VIALOG  and  VIALOG  Merger  Subsidiary  has all  requisite  power  and
authority   (corporate  and  other)  and  has  in  full  force  and  effect  all
Governmental  Authorizations and Private Authorizations in order to enable it to
execute and deliver,  and to perform its obligations  under,  this Agreement and
each Collateral  Document executed or required to be executed pursuant hereto or
thereto  and to  consummate  the Merger  and the  Transactions.  The  execution,
delivery and performance of this Agreement and each Collateral Document executed
or required to be executed  pursuant hereto or thereto have been duly authorized
by all  requisite  corporate  or other  action.  This  Agreement  has been  duly
executed  and  delivered  by each of VIALOG and  VIALOG  Merger  Subsidiary  and
constitutes,  and each Collateral  Document  executed or required to be executed
pursuant  hereto or thereto when executed and  delivered by it will  constitute,
legal,  valid and binding  obligations  of VIALOG and VIALOG Merger  Subsidiary,
respectively, enforceable in accordance with their respective terms.

         5.3 No  Conflict;  Required  Filings  and  Consents.  Except  for  such
consents of Authorities as may be necessary in connection with change-of-control
transactions with respect to Governmental  Authorities  listed in Section 3.1(c)
of the Disclosure Schedule, neither the execution and delivery of this Agreement
or any Collateral  Document  executed or required to be executed pursuant hereto
or thereto,  nor the consummation of the  Transactions,  nor compliance with the
terms,  conditions and provisions hereof or thereof by each of VIALOG and VIALOG
Merger Subsidiary:

         (a) will  conflict  with,  or result in a breach  or  violation  of, or
constitute a default  under,  the Articles of  Organization  or  Certificate  of
Incorporation,  Bylaws  or any  Applicable  Law on the part of  VIALOG or VIALOG
Merger  Subsidiary or will conflict with, or result in a breach or violation of,
or constitute a default under,  or permit the  acceleration of any obligation or
liability in, or but for any  requirement of giving of notice or passage of time
or both  would  constitute  such a conflict  with,  breach or  violation  of, or
default under, or permit any such acceleration in, any Contractual Obligation of
VIALOG or VIALOG Merger Subsidiary, or

                                       25
<PAGE>

         (b) will require any Governmental  Authorization or Governmental Filing
or Private Authorization, except for filing requirements under Applicable Law in
connection  with the Merger and the  Transactions  and as the Securities Act and
applicable  state  securities  laws may apply to  compliance  by VIALOG with the
provisions of this Agreement relating to the Public Offering.

         5.4  Financing.  On the Public  Offering  Closing Date VIALOG will have
sufficient  funds  to  enable  the  Surviving  Corporation  to  pay  the  Merger
Consideration for all Shares of the Company Stock as provided in Section 2.1(a).

         5.5  Brokers  or  Finder.  Except  for the  Underwriter,  the  fees and
expenses of which are solely the responsibility of VIALOG, no Person assisted in
or brought about the  negotiation of this Agreement or the subject matter of the
Transactions  in the  capacity  of  broker,  agent or finder  or in any  similar
capacity on behalf of VIALOG or VIALOG Merger Subsidiary.

         5.6  Continuing  Representations  and  Warranties.   Except  for  those
representations  and  warranties  which speak as of a specific  date, all of the
representations  and warranties of VIALOG and VIALOG Merger Subsidiary set forth
in this  Article  will be true  and  correct  in all  material  respects  at the
Effective  Time with the same force and effect as though  made on and as of that
date,  and those,  if any,  which  speak as of a specific  date will be true and
correct in all material respects as of such date.

         5.7  Capitalization and Fraudulent  Conveyance.  On the Public Offering
Closing  Date,  after  giving  effect to the  Public  Offering  Closing  and the
Transactions  contemplated  hereby to occur on the Public Offering  Closing Date
VIALOG and its subsidiaries,  individually and as a whole will be solvent. As of
the date hereof VIALOG and VIALOG Merger  Subsidiary have the long-term debt and
equity  capitalization  within  the  range  set  forth  on  Section  5.7  of the
Disclosure  Schedule.  VIALOG and the VIALOG Merger Subsidiary further represent
and  warrant  that (i) they are  entering  into the Merger and the  Transactions
without the actual  intent to hinder,  delay or defraud any  creditor of VIALOG,
VIALOG  Merger  Subsidiary  or  the  Company,  (ii)  VIALOG  and  VIALOG  Merger
Subsidiary  have, to VIALOG's best  knowledge,  received  reasonably  equivalent
value for the Merger  Consideration  delivered in exchange  for the Shares,  and
(iii)  VIALOG  and the  Surviving  Corporation  (a) are not about to engage in a
business  or  transaction  for  which the  Assets  of  VIALOG  or the  Surviving
Corporation are unreasonably  small in relation to such business or transaction,
(b) will  not  incur  debts  beyond  the  ability  of  VIALOG  or the  Surviving
Corporation to pay as they become due, and (c) will not be rendered insolvent by
the  consummation  of the  Merger  and  the  Transactions  contemplated  by this
Agreement. Notwithstanding any contrary provision contained in this Agreement or
any Collateral Document, this representation shall survive for 60 days after the
statute of limitations period applicable to fraudulent transfers and conveyances
applicable  under  Delaware  Law,  the  law of the  State  of  Minnesota  or any
applicable  law of the  jurisdiction  in which such claim is or may be  brought,
whichever last expires.

         5.8  Prior  Activities  of  VIALOG  Merger  Subsidiary.  VIALOG  Merger
Subsidiary  is a first  tier  subsidiary  corporation  of VIALOG  formed for the
purpose of this  transaction.  VIALOG


                                       26
<PAGE>

Merger  Subsidiary has not incurred any liabilities or Contractual  Obligations,
except those incurred in connection  with its  organization  the  negotiation of
this Agreement and the  performance of this  Agreement,  the  performance of all
other  governmental  filings,  and the  financing of this  Agreement.  Except as
contemplated  by the foregoing  VIALOG Merger  Subsidiary has not engaged in any
business  activity  of any  type  or  kind  whatsoever,  nor  entered  into  any
agreements or arrangements with any person, nor is it subject to or bound by any
obligations or undertaking.

         5.9  Registration   Statement.   The  Registration  Statement  and  any
amendments thereto will comply when the Registration Statement becomes effective
in all material  respects with the provisions of the Securities Act and 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. The Prospectus will not as of the issue date thereof contain any
untrue statement of a material fact or omit to state any material fact necessary
in order to make the statements therein, in the light of the circumstances under
which  they were made,  not  misleading,  except  that the  representations  and
warranties contained in this Section 5.9 will not apply to (a) statements in the
Registration  Statement or the Prospectus based on information about the Company
or the  Stockholders  furnished  to  VIALOG in  writing  by the  Company  or the
Stockholders or reviewed by or on behalf of the Stockholders pursuant to Section
6.20 hereof, or (b) information about the Company or the Stockholders  which was
omitted from the  Registration  Statement or Prospectus and was not included (i)
in this Agreement,  (ii) any Disclosure Schedule to this Agreement,  or (iii) in
any written due diligence  material furnished by the Company or the Stockholders
to VIALOG,  unless, in the case of (a) or (b) hereof,  the information was known
to be inaccurate by VIALOG or the  information  not included was otherwise known
to VIALOG.  VIALOG  will  furnish the  Company  with a copy of the  Registration
Statement and of each amendment  thereto until the Public  Offering  Closing and
thereafter  will furnish the  Stockholder  with each  amendment  thereto and the
final Prospectus.


                                     ARTICLE
                                       6
                              ADDITIONAL COVENANTS


         6.1 Access to Information; Confidentiality.

         (a) The Company will afford to VIALOG and the Representatives of VIALOG
full access  during normal  business  hours  throughout  the period prior to the
Effective  Time to all of its  properties,  books,  contracts,  commitments  and
records (including without limitation Tax Returns) and, during such period, will
furnish  promptly  upon  request (i) a copy of each  report,  schedule and other
document filed or received by it pursuant to the  requirements of any Applicable
Law (including  without limitation federal or state securities laws) or filed by
it with any Authority in connection  with the  Transactions  or which may have a
material effect on its business,  operations,  properties,  personnel, condition
(financial or other), or results of operations,  (ii) to the extent not provided
for pursuant to the preceding clause, all financial records, ledgers,



                                       27
<PAGE>

workpapers and other sources of financial information processed or Controlled by
the Company or its accountants deemed by the Accountants necessary or useful for
the  purpose of  performing  an audit of the Company  and  certifying  financial
statements  and  financial   information,   and  (iii)  such  other  information
concerning the Company and the  Stockholders as VIALOG will reasonably  request.
Subject to the terms and  conditions of the  Confidentiality  Letter (as defined
below), which are expressly  incorporated in this Agreement by reference for the
benefit  of the  parties  hereto,  VIALOG  will  hold and will use  commercially
reasonable  efforts  to cause the  Representatives  of  VIALOG to hold,  and the
Company  will hold and will use  commercially  reasonable  efforts  to cause the
Representatives  of the Company to hold,  in strict  confidence  all  non-public
documents and  information  furnished  (whether  prior or subsequent  hereto) to
VIALOG  or to  the  Company,  as  the  case  may  be,  in  connection  with  the
Transactions.

         (b) Subject to the terms and conditions of the Confidentiality  Letter,
VIALOG and the Company may  disclose  such  information  as may be  necessary in
connection with seeking all Governmental and Private  Authorizations  or that is
required by Applicable Law to be disclosed.  In the event that this Agreement is
terminated  in  accordance  with its  terms,  VIALOG and the  Company  will each
promptly  redeliver all non-public  written material  provided  pursuant to this
Section or any other provision of this Agreement or otherwise in connection with
the Merger and the  Transactions  and will not retain any  copies,  extracts  or
other  reproductions in whole or in part of such written material other than one
copy thereof which will be delivered to independent counsel for such party.

         (c) The  Company  and VIALOG  acknowledge  that the  Company and VIALOG
executed  one or  more  Confidential  Disclosure  Agreement  (collectively,  the
"Confidentiality   Letter"),  which  separately  and  as  incorporated  in  this
Agreement  will remain in full force and effect  after and  notwithstanding  the
execution and delivery of this Agreement, and that information obtained from the
Company  by  VIALOG,   or  its   Representatives   or  by  the  Company  or  its
Representatives  from VIALOG  pursuant to Section  6.1(a),  the  Confidentiality
Letter or otherwise  will be subject to the  provisions  of the  Confidentiality
Letter.

         (d) No  investigation  pursuant  to this  Section  6.1 will  affect any
representation  or warranty in this  Agreement of any party or any  condition to
the obligations of the parties.

         6.2 Agreement to Cooperate.

         (a) Each of the Parties  will use  commercially  reasonable  efforts to
take,  or cause to be taken,  all  actions  and to do, or cause to be done,  all
things  necessary,  proper or advisable  under  Applicable Law to consummate the
Merger  and  make  effective  the  Transactions,  including  using  commercially
reasonable  efforts (i) to prepare and file with the  applicable  Authorities as
promptly as  practicable  after the  execution of this  Agreement  all requisite
applications and amendments thereto, together with related information, data and
exhibits,  necessary to request  issuance of orders approving the Merger and the
Transactions by all such applicable Authorities,  each of which must be obtained
or become final in order to satisfy the conditions applicable to it set forth in
Section 7; (ii) to obtain all  necessary or  appropriate  waivers,  consents and
approvals, and (iii) to lift any injunction or other legal bar to the Merger and
the Transactions (and, in such

                                       28
<PAGE>

case,  to proceed  with the  Merger and the  Transactions  as  expeditiously  as
possible), subject, however, to the requisite votes of the Stockholders.

         (b) Each of the Parties agrees to take such actions as may be necessary
to obtain any Governmental  Authorizations legally required for the consummation
of the Merger and the  Transactions,  including  the making of any  Governmental
Filings, publications and requests for extensions and waivers.

         (c) The Company will use commercially reasonable efforts at or prior to
the Effective Time (i) to obtain the satisfaction of the conditions specified in
Sections 7.1 and 7.2; (ii) if requested by VIALOG,  to seek the consents (to the
extent  required) to the continued  existence in accordance with its then-stated
terms of all long-term debt of the Company;  and (iii) to attempt to cause those
key employees of the Company mutually agreed upon by VIALOG and the Company that
are  not  Stockholders  to  execute  and  deliver   non-competition   agreements
substantially conforming in form and substance to the non-competition agreements
currently  maintained  by VIALOG with its key  employees in the form attached as
Exhibit  6.2(c).  Each of  VIALOG  and  VIALOG  Merger  Subsidiary  will use its
reasonable  commercial  efforts at or prior to the Effective  Time to obtain the
satisfaction  of the  conditions  applicable to it specified in Sections 7.1 and
7.3. The  Stockholders  will use commercially  reasonable  efforts to obtain the
satisfaction of the conditions applicable to the Stockholders in Section 7.2.

         (d) The Company  agrees prior to the Effective Time it will not make or
permit to be made any material change affecting any bank, trust company, savings
and loan association,  brokerage firm or safe deposit box or in the names of the
Persons  authorized  to draw  thereon,  to have access  thereto or to  authorize
transactions  therein  or in such  powers of  attorney,  or open any  additional
accounts or boxes or grant any  additional  powers of attorney,  without in each
case  obtaining the prior written  consent of VIALOG,  which consent VIALOG will
not unreasonably withhold, delay or condition.

         (e) The Company will take such steps as are necessary  and  appropriate
to obtain, and will promptly obtain, satisfaction and discharge of all Liens set
forth in Section 3.15(b) of the Disclosure Schedule.

         6.3  Assignment of Contracts and Rights.  Anything in this Agreement to
the contrary notwithstanding, this Agreement will not constitute an agreement to
assign any Claim,  Contractual Obligation,  Governmental  Authorization,  Lease,
Private  Authorization,  commitment,  sales,  service or purchase  order, or any
claim, right or benefit arising thereunder or resulting therefrom, if the Merger
or the Transactions would be deemed an attempted  assignment thereof without the
required  consent of a third party thereto and would constitute a breach thereof
or in any way  affect  the rights of VIALOG,  VIALOG  Merger  Subsidiary  or the
Company thereunder.  If such consent is not obtained,  or if consummation of the
Merger and the Transactions would affect the rights of the Company thereunder so
that the Surviving  Corporation  would not in fact receive all such rights,  the
Company will  cooperate with VIALOG in any  arrangement  designed to provide for
the benefits  thereof to the Surviving  Corporation,  including  subcontracting,
sub-licensing or subleasing to the Surviving  Corporation or enforcement for the
benefit of the

                                       29
<PAGE>

Surviving  Corporation of any and all rights of the Company or its  Subsidiaries
against a third party thereto  arising out of the breach or cancellation by such
third party or otherwise.  Any  assumption by the Surviving  Corporation  of the
Company's  rights  thereunder by operation of law in connection  with the Merger
which will  require  the  consent or  approval  of any third  party will be made
subject to such consent or approval being obtained.

         6.4 Audited Financial Statements.  The Company agrees to allow VIALOG's
Accountants  access to the Company's business as is necessary for the Accountant
to perform and update an audit of the Company's Financial Statements for the two
years ended  December  31, 1997 (the  "Audit").  The Company  agrees to promptly
prepare  such  financial  statements  and update and  deliver  them to  VIALOG's
Accountants.  VIALOG  shall  instruct  VIALOG's  auditor to promptly  audit such
financial statements at VIALOG's expense.  Draft copies of the Audit and updates
will be provided to ABCC contemporaneously with its distribution to VIALOG.

         6.5 Conduct of Business.

         (a) Prior to the  Effective  Time or the date,  if any,  on which  this
Agreement  is  earlier  terminated,  the  Company  will  (i) use its  reasonable
commercial  efforts to preserve intact its business  organization and good will,
keep  available  the  services  of its  officers  and  employees  as a group and
maintain satisfactory relationships with suppliers, distributors,  customers and
others  having  business  relationships  with it,  (ii)  confer on a regular and
frequent basis with one or more  representatives of VIALOG to report operational
matters of Materiality and the general status of ongoing  operations,  and (iii)
notify  VIALOG of any  emergency  or other  change in the  normal  course of its
business  and of any  governmental  complaints,  investigations  or hearings (or
communications  indicating that the same may be contemplated) if such emergency,
change,  complaint,  investigation or hearing would be Material to the business,
operations or financial condition of the Company.

         (b) Except as set forth in Section 6.5(b) of the Disclosure Schedule or
with the written  permission  of VIALOG,  the Company  agrees  further  that the
Company (i) will not make,  declare or pay any non cash  dividends  or other non
cash  distributions  on any shares except as permitted  pursuant to Section 6.17
hereof  or  redeem  or  repurchase  or  otherwise  acquire  any  Shares  (except
cancellation of options and warrants as required in this  Agreement),  (ii) will
not enter into or  terminate  any  Employment  Arrangement  with any director or
officer,  (iii)  will  not  incur  any  obligation  or  liability  (absolute  or
contingent),   except  current  liabilities  incurred,   and  obligations  under
contracts  entered  into,  in the  ordinary  course of  business,  (iv) will not
discharge or satisfy any Lien or  Encumbrance or pay any obligation or liability
(absolute or contingent)  other than current  liabilities shown on its Financial
Statements,  and current liabilities  incurred since those dates in the ordinary
course of business,  (v) will not mortgage,  pledge,  create a security interest
in, or subject  to Lien or other  Encumbrance  any of its  assets,  tangible  or
intangible,  (vi) will not sell or transfer any of its tangible assets or cancel
any debts or claims  except in each  case in the  ordinary  course of  business,
(vii) will not sell,  assign, or transfer any trademark,  trade name, patent, or
other  Intangible  Asset,  (viii)  will not waive  any right of any  substantial
value, (ix) will not make any material change in the tax procedures or practices
followed by the Company, (x) will not make any change in credit terms offered by
the Company,



                                       30
<PAGE>

(xi)  will not make any  capital  expenditure  or  Material  Commitment  for any
additions or  improvements to its property,  plant or equipment,  (xii) will not
amend its capitalization, or issue any stocks, bonds or other securities, except
that the Company may issue shares pursuant to outstanding  Option Securities and
Convertible Securities, (xiii) will not enter into, modify or extend, or promise
any bonus or incentive  compensation  program that was not in place prior to the
date hereof and (xiv) will  otherwise  conduct its  operations  according to its
ordinary and usual course of business.

         6.6 No  Solicitation.  The Company  will not, nor will it permit any of
the Company's  Representatives  (including,  without limitation,  any investment
banker,  attorney  or  accountant  retained  by it) to,  initiate,  or  solicit,
directly or indirectly, any inquiries or the making of any proposal with respect
to an Other  Transaction  (as  defined  below),  engage  in any  discussions  or
negotiations concerning,  or provide to any other person any information or data
relating to it or otherwise  cooperate in any way with or assist or  participate
in, the making of any proposal which constitutes,  or may reasonably be expected
to lead to, a proposal  to seek or effect an Other  Transaction,  or agree to or
endorse any Other  Transaction.  Nothing contained in this Section will prohibit
the Company or its Board of Directors from making any disclosure to Stockholders
that, in the reasonable  judgment of its Board of Directors in accordance  with,
and based upon the  written  advice  of,  outside  counsel,  is  required  under
Applicable  Law. The Company will promptly advise VIALOG of, and communicate the
material  terms of, any  proposal it may  receive,  or any  inquires it receives
which may reasonably be expected to lead to such a proposal relating to an Other
Transaction,  and the identity of the Person making it. The Company will further
advise  VIALOG of the  status  and  changes  in the  material  terms of any such
proposal or inquiry (or any  amendment to any of them).  During the term of this
Agreement,  the Company will not enter into any agreement  oral or written,  and
whether or not legally binding, with any Person that provides for, or in any way
facilitates,  an Other  Transaction,  or  affects  any other  obligation  of the
Company under this Agreement.

         6.7 Directors' and Officers' Indemnification and Insurance.

         (a) From  and  after  the  Effective  Time,  VIALOG  and the  Surviving
Corporation  will  indemnify,  defend and hold  harmless  the present and former
officers  and  directors  of the Company  against all Claims or amounts that are
paid in  settlement  of, with the  approval  of the  Surviving  Corporation,  or
otherwise  in  connection  with any Claim  based in whole or in part on the fact
that such  Person is or was a director or officer of the Company and arising out
of actions or omissions  occurring at or prior to the Effective Time (including,
without  limitation,  the  Merger  and the  Transactions),  in each  case to the
fullest  extent  permitted  under  the  BCA  or the  DBCL  or  the  laws  of the
Commonwealth  of  Massachusetts  whichever  governs  and  affords  the  greatest
protection (and will pay any expenses in advance of the final disposition of any
such action or  proceeding to each such Person to the fullest  extent  permitted
under the BCA or the DBCL or the laws of the Commonwealth of Massachusetts, upon
receipt from the Person to whom expenses are advanced of an undertaking to repay
such  advances to the extent  required  under such laws).  VIALOG will cause the
Surviving  Corporation to, and the Surviving Corporation will observe and comply
with the Company's  obligations pursuant to the indemnification  agreements,  if
any, listed in Section 3.9 of the Disclosure Schedule.

                                       31
<PAGE>
         (b) This  Section 6.7 is intended to be for the benefit of, and will be
enforceable  by, the former  officers and directors of the Company,  their heirs
and personal  representatives  and will be binding on the Surviving  Corporation
and its respective successors and assigns.

         (c) VIALOG  will  maintain  directors  and  officers  insurance  in the
minimum  amount of  $2,000,000  for the benefit of the directors and officers of
VIALOG and the Surviving Corporations.

         (d) The Surviving  Corporation will not amend or change its Articles of
Incorporation or By-Laws to adopt a lesser standard of indemnification.

         6.8  Notification  of Certain  Matters.  The  Company  will give prompt
notice to VIALOG, and VIALOG will give prompt notice to the Company,  of (a) any
Event  which  would  be  likely  to  cause  in  any  material  respect  (i)  any
representation  or  warranty  of the  Company  or  VIALOG,  as the  case may be,
contained in this Agreement to be untrue or  inaccurate,  or (ii) in the case of
the  Company  or the  Stockholders,  any  change  to be made  in the  Disclosure
Schedule  and (b) any failure of the  Company or VIALOG,  as the case may be, to
comply with or  satisfy,  or be able to comply  with or  satisfy,  any  material
covenant,  condition or  agreement to be complied  with or satisfied by it under
this Agreement.

         6.9 Public Announcements.  Until the Effective Time, or in the event of
termination  of this  Agreement,  the Company will  consult  with VIALOG  before
issuing any press release or otherwise making any public statements with respect
to this Agreement,  the Merger or any Transaction  (including the termination of
this  Agreement)  and will not issue  any such  press  release  or make any such
public statement without the prior consent of VIALOG.  The Company  acknowledges
and agrees that VIALOG may, without the prior consent of the Company, issue such
press  release or make such public  statement  as in the  reasonable  opinion of
counsel to VIALOG is required by  Applicable  Law or any  listing  agreement  or
arrangement  to which VIALOG is a party with a national  securities  exchange or
the National Association of Securities Dealers, Inc. Automated Quotation System.
VIALOG will exercise  commercially  reasonable  efforts to furnish the Company a
copy of any press  release prior to its  publication  and will furnish a copy of
any press release so issued as soon as practicable  after its  publication,  but
any failure on VIALOG's  part to do so will not be deemed a breach of or default
under this  Agreement.  VIALOG will not make any statements  attributable to the
Stockholders without the prior consent of the Stockholders.

         6.10 Conveyance  Taxes.  The Parties will cooperate with one another in
the   preparation,   execution  and  filing  of  all  Returns,   questionnaires,
applications,  or other documents regarding any real property transfer or gains,
sales, use, transfer, value added, stock transfer and stamp Taxes, any transfer,
recording,  registration  and other  fees,  and any similar  Taxes which  become
payable in connection with the Transactions that are required or permitted to be
filed on or before the Effective Time.

                                       32
<PAGE>
         6.11 Obligations of VIALOG.  VIALOG agrees to take all action necessary
to cause VIALOG Merger Subsidiary and the Surviving Corporation to perform their
respective obligations under this Agreement and will use commercially reasonable
efforts to cause the Registration  Statement to become effective and the closing
of the Public  Offering to occur  simultaneous  with the  Effective  Time and to
consummate,  and cause VIALOG Merger Subsidiary to consummate, the Merger on the
terms and conditions set forth in this Agreement.

         6.12 Employee Benefits; Severance Policy.

         (a) Within a  reasonable  time after the  Effective  Time,  VIALOG will
cause the  Surviving  Corporation  to  substitute  for the  Plans  and  Benefits
Arrangements  previously  maintained  by the  Company,  the Plans  and  Benefits
Arrangements  provided to VIALOG's  other  employees  and the employees of other
VIALOG Subsidiaries.  Employees of the Surviving Corporation will be granted (i)
eligibility  and vesting  service in any  employee  pension  plan (as defined in
Section  3(2)(A)  of ERISA)  maintained  by VIALOG  for their  service  with the
Company,  (ii)  eligibility  service in any employee welfare plan (as defined in
Section 3(1) of ERISA)  maintained  by VIALOG for their service with the Company
and (iii) a dollar-for-dollar  credit for annual  "out-of-pocket  maximums" paid
under the  Company's  health  plan  (with  respect  to the plan year  commencing
January 1, 1998) toward their annual  "out-of-pocket  maximums" under the VIALOG
health plan for the plan year ending December 31, 1998.

         (b) Within a reasonable  time after the Effective  Time,  the Company's
section 125 cafeteria  plan will be merged into the VIALOG section 125 cafeteria
plan such that all  employee  elections  (and  corresponding  flexible  spending
account balances where applicable) for the period commencing January 1, 1998 and
ending  with  the  date  of  such  plan  merger  are   preserved  and  credited,
dollar-for-dollar.

         (c) The  Company's  401(k)  plan will be (i)  "frozen"  with no further
contributions  other  than  those  accrued as of the  Effective  Time,  and (ii)
maintained for a seven year period following the later of the last  contribution
to the 401(k) plan or the Effective Time; provided,  however,  that VIALOG shall
have the right to amend such plan from  time-to-time  to as  required  by law in
order to maintain  the plan's tax  qualified  status.  Thereafter,  VIALOG shall
cause the  Company's  401(k) plan to be merged into the VIALOG 401(k) plan so as
to allow employees of the Company to roll over their account balances (including
outstanding  loan  balances) to the VIALOG  401(k) plan.  VIALOG shall cause the
Company to pay timely any accrued liability to the 401(k) plan.

         6.13 Certain Actions Concerning Business Combinations.  The Company and
the  Stockholders  will not apply, and will not take any action resulting in the
application  of, or  otherwise  elect to apply,  the  provisions  of  applicable
Minnesota takeover laws, if any, with respect to or as a result of the Merger or
the Transactions.

         6.14  No  Significant  Changes  VIALOG  agrees  that  there  will be no
"significant  change" (as defined  below) in the conduct of the  business of the
Company for a period of two years after the Effective  Time without the approval
of one of the Stockholders.  "Significant change" means,



                                       33
<PAGE>

(i) a relocation of the Company's  operations outside of the greater Minneapolis
Metropolitan area except the relocation or consolidation of certain  operational
equipment,  (ii) any  change in the  position  of those  employees  who  receive
employment  agreements pursuant to Section 7.2(t),  (iii) a general reduction in
force or (iv) the termination of any employee  (including the  Stockholders  and
employees who receive employment  agreements  pursuant to Section 7.2(t)) except
as related to such Stockholders' or employee's performance.  The sales/marketing
staff, the accounting  function,  the human resources  function and the benefits
administration  function  will  be  reorganized  to  report  and be  responsible
directly to VIALOG corporate staff rather than local management.

         6.15 Tax Returns.  The  Stockholders  will cause all Tax Returns of the
Company with respect to taxable  periods  ending on or before the Effective Time
to be prepared in a manner  consistent  with past  practices,  execute  such Tax
Returns on behalf of the Company  and timely file such Tax Returns  prior to the
due date taking into account all extensions. At least thirty days before the due
date for any such Tax  Returns,  the  Stockholders  or the Company  will provide
drafts  of such  Tax  Returns  to  VIALOG  for its  review  and  comment  (which
reasonable comments will be incorporated into the final Tax Returns), and VIALOG
will cooperate with the Stockholders and provide the Stockholders with access to
any books and records  reasonably  necessary for their preparation of such draft
Tax Returns and  authorize one or both of the  Stockholders  to execute such Tax
Returns on behalf of the Surviving Corporation.  For any Tax Returns for taxable
periods  ending on or before the Effective  Time (to the extent not filed by the
Stockholders)  which Tax  Returns are due after the  Effective  Time VIALOG will
provide the Stockholders drafts of such Tax Returns for their review and comment
(which  reasonable  comments will be  incorporated  into the final Tax Returns).
VIALOG  will file no amended  Tax  Returns  with  respect to the Company for any
taxable  period  ending  on or before  the  Effective  Time if the  Stockholders
reasonably  objects  thereto and furnishes  VIALOG thereto with  indemnification
satisfactory  in  form  and  substance  to  it,  including  without  limitation,
indemnification  for all  interest,  penalties and expenses  resulting  from the
failure to amend such Tax Returns and all proceedings in connection therewith.

         6.16  Employment and  Noncompetition.  On or before the Merger Closing,
the  Stockholders  will execute and deliver to VIALOG the  employment  agreement
contemplated  by Section 7.2(s) to be effective as of the Effective  Time.  From
and after the Effective Time, the  Stockholders  will not compete with VIALOG or
any of its Subsidiaries except to the extent not prohibited by Exhibit 7.2(s).

         6.17   Distributions;   Liabilities;   Etc.   The  Company  and  VIALOG
acknowledge  and  agree  that the  Company  contemplates  that (i)  prior to the
Effective Time it will make certain  Distributions  to Stockholders as set forth
in  Schedule  6.17  of the  Disclosure  Schedule,  and  (ii)  subsequent  to the
Effective Time further  Distributions  may be required  pursuant to this Section
6.17 as set forth in said Schedule 6.17.

         6.18 Release from  Personal  Guarantees.  At or prior to the  Effective
Time,  VIALOG will either  obtain  releases of the  personal  guarantees  of the
Stockholders  of  Indebtedness or discharge or arrange for the discharge of such
Indebtedness.  VIALOG will either obtain releases of the



                                       34
<PAGE>

personal guarantees of the Stockholders of Contractual  Obligations which extend
beyond the Effective Time or indemnify and hold the  Stockholders  harmless from
such personal guarantees.

         6.19 Section 338(h)(10) Election.

         (a) The  Company  and the  Stockholders  agree to join  with  VIALOG in
making an election under Section  338(h)(10) of the Code (and any  corresponding
election  under state,  local and foreign tax law) that is  consistent  with the
calculations  promulgated  in accordance  with this Section 6.19 with respect to
the  purchase  and sale of the  stock of the  Company  hereunder  (the  "Section
338(h)(10) Election"). The Stockholders agree to include any income, gain, loss,
deduction or other tax item  resulting from the Section  338(h)(10)  Election on
their tax returns to the extent permitted by Applicable Law and agree to pay any
taxes imposed on the Company  attributed to the making of the Section 338(h)(10)
Election, including but not limited to, (i) any taxes imposed under Section 1374
of   the   Code,   (ii)   any   taxes   imposed   under    Regulation    Section
1.338(h)(10)-1(e)(5),  or (iii) any state, local or foreign taxes imposed on the
Company's gain.

         (b) At the  Effective  Time,  VIALOG  agrees  to  remit  to each of the
Stockholders  (i) a  preliminary  reimbursement  amount  equal to the sum of the
difference  between  (A) the  taxes  calculated  to be  incurred  by each of the
Stockholders  under the  immediately  preceding  paragraph (a) and (B) the taxes
calculated which such Stockholder  would have incurred if no Section  338(h)(10)
Election had been made and (ii) an additional amount equal to the taxes incurred
by the  Stockholders  on the preliminary  reimbursement  amount and any payments
made  pursuant  to this  paragraph  6.19(b) as an  initial  tax gross up amount,
assuming  that  each of the  Stockholder  is in the  highest  federal  and state
applicable  income  tax  brackets  in each case  under (i) and (ii)  immediately
preceding.

         (c) The preliminary  reimbursement  amount and the initial tax gross-up
amount are set forth on Schedule 6.19 of the  Disclosure  Schedule.  The Section
338(h)(10)  Election  shall be made exactly in accordance  with the  methodology
used to determine the preliminary reimbursement amount; provided,  however, that
the parties acknowledge and agree that the financial accounting numbers used for
calculation of the  preliminary  reimbursement  amount will be replaced with the
final  financial  accounting  numbers  determined in accordance  with  generally
accepted accounting principles, consistently applied, as of the Effective Time.

         (d) Promptly  following the Effective  Time, but in no event later than
sixty (60) days after the Effective  Time,  the  Stockholders  shall prepare and
cause Stockholders'  accountants to prepare a statement of a final reimbursement
amount  under the  Section  338(h)(10)  Election,  using  the exact  methodology
utilized for the preliminary reimbursement amount, as of the Effective Time. The
foregoing  calculation  shall be prepared on a basis consistent with that of the
preliminary reimbursement amount.

         (e) In  connection  with  the  preparation  of the  statement  of final
reimbursement  amount  under the  Section  338(h)(10)  Election,  VIALOG and the
Company shall afford the Stockholders and their  Representatives  reasonable and
timely access to the Company's  books and records,  personnel and  facilities to
permit the Stockholders to prepare, and the Stockholders'



                                       35
<PAGE>

accounts to calculate  and  prepare,  the  statement of the final  reimbursement
amount under Section 338(h)(10).

         (f) Within 15 days  after its  receipt  of the  statement  of the final
reimbursement amount under the Section 338(h)(10) Election,  VIALOG shall either
inform the  Stockholders  in writing that such statement is acceptable or object
thereto in writing,  setting forth a specific description of its objections.  If
VIALOG so objects, any objection that the Stockholders and VIALOG cannot resolve
within  15 days  from the date  VIALOG  notifies  the  Stockholders  of any such
objection shall be referred to an independent  certified public  accounting firm
mutually  agreeable to the Stockholders and VIALOG.  The final  determination by
such  independent  certified public  accounting firm of the final  reimbursement
amount under the Section  338(h)(10)  Election  shall be conclusive  and binding
upon the parties hereto.  Notwithstanding any contrary provision of this Section
6.19, the Section 338(h)(10) Election shall be executed by the parties and filed
with the  Internal  Revenue  Service  only in  accordance  with  either  (i) the
parties'  agreement or (ii) the binding  determination of the independent public
accounting firm. VIALOG shall pay the fees and expenses of VIALOG's Accountants.
Stockholders shall pay the fees and expenses of their accountants.  The fees and
reimbursements,  if any,  of the  independent  accounting  firm  selected by the
parties shall be paid one-half by the Stockholders and one-half by VIALOG.

         (g) Upon the  determination  of the final  reimbursement  amount  under
Section  338(h)(10)  Election,  the  preliminary  reimbursement  amount shall be
adjusted,  up or down, as follows:  (i) if the final reimbursement  amount under
Section  338(h)(10) is greater than the preliminary  reimbursement  amount,  the
amount of such difference  shall be paid by VIALOG to the  Stockholders and (ii)
if the final reimbursement amount under Section 338(h)(10) Election is less than
the preliminary  reimbursement  amount,  the amount of such difference  shall be
paid by the Stockholders to VIALOG. Such payments, if any, shall be made by wire
transfer of immediately  available  funds in the manner and amounts set forth or
calculated  in this Section 6.19 within five  business  days after the date upon
which such amount is finally determined hereunder to an account as designated by
the receiving party.

         6.20 Registration Statement.

         (a) The  Company  and the  Stockholders  will  review  or will have had
reviewed on their behalf,  and will be familiar with the information  concerning
the Company and the Stockholders (or any of them) in the Registration  Statement
and Prospectus and any amendment thereto  (including the Financial  Statements),
which will be  furnished  to them by VIALOG for their  review,  and will have no
knowledge of any material fact, condition or information  concerning the Company
and the Stockholders misstated in such Prospectus.

         (b) VIALOG agrees to furnish to the Company and the Stockholders a copy
of information  concerning the Company and the Stockholders included therein and
each amendment thereto at least two business days prior to such filing date.



                                       36
<PAGE>

         (c) The Company and the  Stockholders  will  furnish to VIALOG a letter
confirming their review pursuant to paragraph (a) hereof by such filing date.


                                     ARTICLE
                                       7
                               CLOSING CONDITIONS


         7.1 Conditions to  Obligations of Each Party to Effect the Merger.  The
respective obligations of each Party to effect the Merger will be subject to the
satisfaction at or prior to the Effective Time of the following conditions,  any
or all of which may be waived,  in whole or in part, to the extent  permitted by
Applicable Law:

         (a) This subsection intentionally left blank,

         (b) No proceeding  before any Authority or Claim by any Person shall be
pending,  challenging  or  seeking  to make  illegal,  to  delay  materially  or
otherwise directly or indirectly to restrain or prohibit the consummation of the
Merger or seeking  material  damages  or  imposing  any  Adverse  conditions  in
connection therewith,

         (c) Other than the filing of merger  documents in  accordance  with the
BCA and the DBCL, all  authorizations,  consents,  waivers,  orders or approvals
required to be obtained, and all filings, submissions, registrations, notices or
declarations  required to be made, by VIALOG or VIALOG Merger Subsidiary and the
Company prior to the consummation of the Merger and the Transactions  shall have
been obtained  from, and made with,  all required  Authorities,  except for such
authorizations,  consents, waivers, orders, approvals,  filings,  registrations,
notices or  declarations  the  failure  to obtain or make  would  not,  assuming
consummation of the Merger, have an Adverse Effect on the Company.

         (d) (i) The  Registration  Statement  shall have become  effective  and
shall  contain  no  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 no stop order suspending its  effectiveness  has been
issued and no proceedings for that purpose have been instituted or threatened by
the SEC,  (ii) the shares of VIALOG Stock offered in the Public  Offering  shall
have been sold and purchased  subject only to consummation of the Merger,  (iii)
every  condition  to closing the Public  Offering  (except as provided in clause
(iv)  immediately  succeeding)  shall have been satisfied or properly waived and
(iv)  release of the  closing  documents  relating  to the Public  Offering  and
distribution  of the proceeds of the sale of all shares of VIALOG Stock sold and
purchased in the Public Offering shall have been  unconditionally  authorized by
the Underwriter upon consummation of the Merger.

         7.2 Conditions to  Obligations of VIALOG and VIALOG Merger  Subsidiary.
The obligations of VIALOG and VIALOG Merger Subsidiary to effect the Merger will
be  subject  to



                                       37
<PAGE>

the satisfaction at or prior to the Effective Time of the following  conditions,
any or all of which may be waived,  in whole or in part, to the extent permitted
by Applicable Law:

         (a) The Company shall have  complied in all material  respects with its
agreements  contained in this  Agreement,  the  certificates  to be furnished to
VIALOG  pursuant  to this  Section  shall be true,  correct  and  complete.  All
Collateral  Documents  shall  be  reasonably  satisfactory  in form,  scope  and
substance  to VIALOG and its  counsel,  and VIALOG  and its  counsel  shall have
received  all  information  and copies of all  documents,  including  records of
corporate   proceedings,   which  they  may  reasonably  request  in  connection
therewith,  such documents where appropriate to be certified by proper corporate
officers,

         (b) The Company shall have furnished VIALOG with,  favorable  opinions,
dated the  Effective  Time of Briggs  and  Morgan  P.A.,  in the form of Exhibit
7.2(b),

         (c) No Legal  Action or other Claim shall be pending or  threatened  at
any time prior to or at the Effective  Time before or by any Authority or by any
other  Person  seeking to restrain or  prohibit,  or damages or other  relief in
connection   with,   the  execution  and  delivery  of  this  Agreement  or  the
consummation of the Merger and the Transactions or which might in the reasonable
judgment  of  VIALOG  have  any  Adverse  Effect  on the  Company  or,  assuming
consummation of the Merger, VIALOG and its Subsidiaries taken as a whole,

         (d) The  representations,  warranties,  covenants and agreements of the
Company contained in this Agreement or as supplemented pursuant to Section 11.11
or otherwise  made in writing by it or on its behalf  pursuant to this Agreement
or otherwise made in connection  with the Merger and the  Transactions  shall be
true and correct in all material  respects at and as of the Effective  Time with
the same force and  effect as though  made on and as of such date  except  those
which speak as of a certain date which shall  continue to be true and correct in
all material  respects as of such date and the Effective  Time.  Each and all of
the  agreements and conditions to be performed or satisfied by the Company under
this  Agreement at or prior to the Effective Time shall have been duly performed
or satisfied  in all material  respects,  and the Company  shall have  furnished
VIALOG with such  certificates and other documents  evidencing the truth of such
representations,  warranties,  covenants and agreements  and the  performance of
such agreements or conditions as VIALOG shall have reasonably requested,

         (e) VIALOG shall have received from its  Accountants,  a certificate or
letter, dated the Public Offering Closing Date, to the effect that, on the basis
of  a  limited  review  in  accordance  with  the  standards  for  such  reviews
promulgated  by the  American  Institute  of  Certified  Public  Accountants  as
outlined in Statement of Standards of Accounting and Review Services No. 1, they
have no reason to believe that the unaudited  financial  statements set forth in
the  Registration  Statement  were not  prepared  in  accordance  with  GAAP and
practices  consistent  with those  followed  in the  preparation  of the audited
financial  statements  audited by the  Accountants  as  contemplated  by Section
6.1(a),  or  that  any  material   modifications  of  such  unaudited  financial
statements  are required for a fair  presentation  of the financial  position or
results of  operations  or changes in financial  position of the Company or that
during  the  period  from the  last day  covered  by the most  recent  financial
statements  delivered  pursuant  to  Section



                                       38
<PAGE>

3.2  hereof  and  set  forth  in  the  Registration  Statement  prepared  by the
Accountants as contemplated by Section 6.4 to a date not more than five (5) days
prior to the Public Offering  Closing Date, there has been any Adverse Change in
the financial  position or results of the operations of the Company which is not
set forth in the Registration Statement,

         (f) The  financial  statements  audited  by  VIALOG's  accountants  are
satisfactory to VIALOG,

         (g) All  actions  taken by the  Stockholders  to approve and adopt this
Agreement, the Merger and the Transactions shall comply in all respects with and
shall be legal, valid,  binding,  enforceable and effective under the Law of the
jurisdiction of incorporation of the Company,  its Organizational  Documents and
all  Material  Agreements  to  which  it is a party or by which it or any of its
property or assets is bound,

         (h) The Company  shall have  obtained  consents to the  assignment  and
continuation of all Material  Agreements  which,  in the reasonable  judgment of
VIALOG or its counsel,  require such consents,  including appropriate binders or
consents as to policies of insurance  to be assigned to VIALOG or the  Surviving
Corporation under this Agreement.  The Company shall have obtained  satisfaction
and  discharge  of all Liens  set forth in  Section  3.15(b)  of the  Disclosure
Schedule,   and  shall  have  obtained,   on  terms  and  conditions  reasonably
satisfactory   to  VIALOG,   all   Governmental   Authorizations   and   Private
Authorizations,  and all  modifications of Contractual  Obligations  relating to
Indebtedness,  which VIALOG deems, reasonably necessary or desirable in order to
own  and  operate  and  conduct  the  business  of  the  Surviving  Corporation,
substantially  on the basis  heretofore  owned,  operated  and  conducted by the
Company and proposed to be owned, operated and conducted by VIALOG,

         (i) Between the date of this  Agreement and the Effective  Time,  there
shall not have  occurred and be  continuing  any Adverse  Change  affecting  the
Company  from the  condition  thereof  (financial  and other)  reflected  in the
Financial  Statements  or in the audited  financial  statements  prepared by the
Accountants  as  contemplated  by Section  6.4 or in the most  recent  financial
statements set forth in the Registration Statement,

         (j) This  Agreement,  the Merger and the  Transactions  shall have been
approved and adopted in accordance with the BCA by the  affirmative  vote, or to
the extent permitted by Law, by written consent, of the Stockholders  holding at
least the  minimum  number  of  shares of the  Company  Stock  then  issued  and
outstanding as are required by Applicable  Law and the Company's  Organizational
Documents for such approval and adoption,

         (k) No Law  shall  have  been  enacted  or made by or on  behalf of any
Authority nor shall any legislation have been introduced and favorably  reported
for passage to either  House of Congress by any  committee,  nor shall any Legal
Action  by any  Authority  have  been  commenced  or  threatened,  nor shall any
decision,  order or other action of any  Authority  have been rendered or taken,
which in VIALOG's  reasonable  judgment,  could have any  Adverse  Effect on the
Company or could restrain,  prevent or change the Merger or the  Transactions or
Adversely  Affect the ability of the  Stockholders to perform their  obligations
under this Agreement, or



                                       39
<PAGE>
Adversely  Affect the ability of VIALOG to continue to own,  operate and conduct
the business of the Surviving Corporation, substantially on the basis heretofore
owned,  operated  and  conducted  by the  Company  and as  proposed to be owned,
operated and conducted by the Surviving Corporation,

         (l) VIALOG shall have received copies of any  environmental  audits the
Company  has  received  in respect of all real  property  owned or leased by the
Company and the results  thereof shall not be materially  inconsistent  with the
representations and warranties set forth in Section 3.23,

         (m) Each of the  directors of the Company and each  trustee  under each
Plan shall have submitted his or her unqualified written  resignation,  dated as
of the Effective Time,

         (n)  Each  of the  Stockholders  shall  have  delivered  to  VIALOG  an
agreement,  substantially  in the form of Exhibit  7.2(n),  dated the  Effective
Time,  releasing  the Company  from any and all Claims  against them (other than
Claims arising from such  Stockholders  having acted as a director or officer of
the Company as contemplated by Section 6.7),

         (o) This subsection intentionally left blank,

         (p) This subsection intentionally left blank,

         (q) Except for such leases and other Contractual Obligations as are set
forth on Schedule  7.2(q) and are  executed,  delivered  and effective as of the
Effective  Time,  all  Contractual  Obligations  set forth in Section 3.9 of the
Disclosure  Schedule shall have been satisfied and discharged at or prior to the
Effective Time,

         (r) The  representations,  warranties,  covenants and agreements of the
Stockholders  contained in this  Agreement or otherwise made in writing by or on
behalf of the  Stockholders  pursuant to this  Agreement  or  otherwise  made in
connection with the Merger and the Transactions shall be true and correct in all
material respects at and as of the Effective Time with the same force and effect
as though made on and as of such date  except  those which speak as of a certain
date which shall continue to be true and correct in all material respects, as of
such date.  Each and all of the  agreements  and  conditions  to be performed or
satisfied by the Stockholders  under this Agreement at or prior to the Effective
Time shall have been duly performed or satisfied in all material  respects,  and
the Stockholders  shall have furnished  VIALOG with such  certificates and other
documents evidencing the truth of such  representations,  warranties,  covenants
and agreements and the performance of such agreements or conditions as VIALOG or
its counsel shall have reasonably requested,

         (s) Each of the  Stockholders  shall have  executed  and  delivered  to
VIALOG an employment and noncompetition agreement,  substantially in the form of
Exhibit 7.2(s),

                                       40
<PAGE>
         (t) The individuals listed on Section 7.2(t) of the Disclosure Schedule
shall have executed and delivered to VIALOG an Employment Arrangement reasonably
satisfactory to VIALOG and its counsel, and

         (u) VIALOG  shall have  received a letter from its  Accountants  to the
effect that the Merger and the  Transactions  qualify as a cash  forward  merger
pursuant  to the Code  and will not  result  in any  taxable  income  or gain or
deductible loss to the Company, VIALOG or Subsidiary.

         7.3 Conditions to Obligations  of the Company.  The  obligations of the
Company to effect the Merger will be subject to the  satisfaction at or prior to
the  Effective  Time of the  following  conditions,  any or all of which  may be
waived, in whole or in part to the extent permitted by Applicable Law:

         (a) Each of VIALOG and VIALOG Merger  Subsidiary shall have complied in
all material respects with its agreements  contained in this Agreement,  and the
certificates  to be furnished to the Company  pursuant to this Section  shall be
true,  correct  and  complete.  All  Collateral  Documents  shall be  reasonably
satisfactory  in form,  scope and substance to the Company and its counsel,  and
the Company and its counsel  shall have received all  information  and copies of
all  documents,  including  records  of  corporate  proceedings,  which they may
reasonably request in connection therewith,  such documents where appropriate to
be certified by proper corporate officers,

         (b) VIALOG shall have furnished the Company and the  Stockholders  with
the  favorable  opinion  dated  the  Public  Offering  Closing  Date of  Mirick,
O'Connell,  DeMallie  &  Lougee,  LLP,  counsel  to  VIALOG  and  VIALOG  Merger
Subsidiary in the form of Exhibit 7.3(b),

         (c) No Legal  Action or other Claim shall be pending or  threatened  at
any time at or prior to the Effective  Time before or by any Authority or by any
other  Person  seeking to restrain or  prohibit,  or damages or other  relief in
connection   with,   the  execution  and  delivery  of  this  Agreement  or  the
consummation of the Merger and the Transactions or which might in the reasonable
judgment of the Company have any Adverse  Effect on VIALOG and its  Subsidiaries
or  the  Company  or,  assuming  consummation  of the  Merger,  VIALOG  and  its
Subsidiaries taken as a whole.

         (d) The representations,  warranties,  covenants and agreements of each
of VIALOG  and  VIALOG  Merger  Subsidiary  contained  in this  Agreement  or as
supplemented  pursuant to Section 11.11 or otherwise made in writing by it or on
its behalf  pursuant to this Agreement or otherwise made in connection  with the
Merger and the Transactions  shall be true and correct in all material  respects
at and as of the Effective Time with the same force and effect as though made on
and as of such date except  those  which speak as of a certain  date which shall
continue to be true and correct in all material  respects as of such date.  Each
and all of the agreements and conditions to be performed or satisfied by each of
VIALOG and VIALOG  Merger  Subsidiary  under this  Agreement  at or prior to the
Effective  Time shall have been duly



                                       41
<PAGE>

performed or satisfied in all material  respects,  and each of VIALOG and VIALOG
Merger  Subsidiary  shall have furnished the Company with such  certificates and
other  documents  evidencing  the  truth  of such  representations,  warranties,
covenants and agreements and the performance of such agreements or conditions as
the Company shall have reasonably requested,

         (e) If executed  and  delivered  to VIALOG by the Merger  Closing,  the
employment  agreements  contemplated  by Section  7.2(s)  and for those  persons
listed on Schedule 7.2(t) shall have been executed by the individuals  listed on
Section  7.2(t)  of the  Disclosure  Schedule  and  the  VIALOG  Subsidiary  and
delivered by VIALOG to the indicated person,

         (f)  All  actions  taken  by  VIALOG  or  VIALOG   Merger   Subsidiary,
respectively,   to  approve  and  adopt  this  Agreement,  the  Merger  and  the
Transactions  shall  comply in all  respects  with and  shall be  legal,  valid,
binding,  enforceable  and  effective  under  the  law  of its  jurisdiction  of
incorporation,   its  respective   Organizational  Documents  and  all  Material
Agreements  to which it is a party  or by  which  it or any of its  property  or
assets is bound.

         (g)  VIALOG  shall have  obtained  the  insurance  set forth in Section
6.7(c),

         (h) No Law  shall  have  been  enacted  or made by or on  behalf of any
Authority nor shall any legislation have been introduced and favorably  reported
for passage to either  House of Congress by any  committee,  nor shall any Legal
Action  by any  Authority  have  been  commenced  or  threatened,  nor shall any
decision,  order or other action of any  Authority  have been rendered or taken,
which in the Company's  reasonable  judgment,  could have any Adverse  Effect on
VIALOG or its  Subsidiaries  taken as a whole,  or could  restrain,  prevent  or
change the Merger or the  Transactions or Adversely Affect the ability of VIALOG
to perform its obligations under this Agreement, or Adversely Affect the ability
of VIALOG to continue to own,  operate and conduct the business of the Surviving
Corporation, substantially on the basis heretofore owned, operated and conducted
by the  Company  and as  proposed to be owned,  operated  and  conducted  by the
Surviving Corporation, and

         (i) This  Agreement,  the Merger and the  Transactions  shall have been
approved and adopted in accordance with the DBCL by the  affirmative  vote or to
the  extent  permitted  by  law,  by  written  consent  of  VIALOG  as the  sole
stockholder of VIALOG Merger Subsidiary.


                                     ARTICLE
                                       8
                        TERMINATION, AMENDMENT AND WAIVER

         8.1 Termination.  This Agreement may be terminated at any time prior to
the Effective  Time,  whether  before or after approval of this  Agreement,  the
Merger and the Transactions by the Stockholders:

         (a) by mutual consent of the Company and VIALOG.

                                       42
<PAGE>

         (b) by either VIALOG or the Company,

                  (i)      if any  permanent  injunction,  decree or judgment by
                           any  Authority  preventing  the  consummation  of the
                           Merger or the Public Offering shall have become final
                           and  non-appealable,  or  if  the  terminating  party
                           determines  in its  reasonable  discretion  that  the
                           Merger has become  inadvisable  or  impracticable  by
                           reason of the  institution  by any Authority or other
                           Person of material Legal Action,

                  (ii)     if the  Merger  Closing  shall not occur on or before
                           the Termination Date,

                  (iii)    by the  delivery  or  receipt  of  written  notice of
                           objection to a Supplement  to or from the other Party
                           or Parties  pursuant to the  procedures  described in
                           Section  11.11  hereof.  In order to  terminate  this
                           Agreement,  such Supplement shall be material (in the
                           receiving Party's sole and reasonable  discretion) to
                           the representation or warranty so modified,

                  (iv)     if  a  party  shall   determine  in  its   reasonable
                           discretion that the Merger or the Transactions has or
                           have become inadvisable or impracticable by reason of
                           the threat by any  Authority,  or any other Person of
                           material Legal Action or  proceedings  against either
                           or both of the Company  and VIALOG (or VIALOG  Merger
                           Subsidiary)  it being  understood  and agreed  that a
                           written  request  by  governmental   authorities  for
                           information   with  respect  to  the  Merger  or  the
                           Transactions,  which  information  could  be  used in
                           connection with such Legal Action or proceedings, may
                           be  deemed  by the  other  Party  to be a  threat  of
                           material Legal Action or proceedings,

                  (v)      if  the  business,  assets,  prospects,   management,
                           condition   (financial   or  other)  or   results  of
                           operation  of the Company  shall have been  Adversely
                           Affected,   whether   by   reason   of   changes   or
                           developments in the economy or industry  generally or
                           operations  in the  ordinary  course of  business  or
                           otherwise, or

                  (vi)     if the Company shall not have  received,  without the
                           imposition  of any  burdensome  condition or material
                           cost,  all  Governmental  Authorizations  and Private
                           Authorizations,  or if any  Authority or other Person
                           shall withdraw any such  Governmental  Authorizations
                           or Private Authorizations.

         (c) by the Company in the event of a breach of this Agreement by VIALOG
or VIALOG Merger Subsidiary that has not been cured, or if any representation or
warranty of



                                       43
<PAGE>

VIALOG or VIALOG  Merger  Subsidiary  shall have become  untrue in any  material
respect,  in either case such that such breach or untruth is  incapable of being
cured by the Effective Date or will prevent or delay  consummation of the Merger
by or beyond the Termination Date, or

         (d) by VIALOG:

                  (i)      if the  Merger and the  Transactions  fail to receive
                           the approval  required by Applicable Law, by vote (or
                           to  the  extent   permitted  by  Applicable  Law,  by
                           consent) of the Stockholders, or

                  (ii)     in the event of a material  breach of this  Agreement
                           by the Company or the Stockholders  that has not been
                           cured,  or if any  representation  or warranty of the
                           Company or the Stockholders  shall have become untrue
                           in any  material  respect,  so that  such  breach  or
                           untruth is incapable of being  substantially cured by
                           the  Merger  Closing  Date or will  prevent  or delay
                           consummation   of  the   Merger  by  or  beyond   the
                           Termination  Date,  or if any  condition  to VIALOG's
                           obligation  to close under this  Agreement  shall not
                           have been satisfied.

         8.2 Effect of  Termination.  Except as  provided  in  Sections  6.1(b),
6.1(c),  6.9,  8.5,  11.2  through  11.11  and  Article  12, in the event of the
termination  of this  Agreement  pursuant to Section 8.1, this  Agreement  shall
forthwith  become void, there shall be no liability on the part of any Party, or
any of their respective  officers or directors,  to the other and all rights and
obligations  of any Party  shall  cease;  provided,  however,  that  [(i)]  such
termination  will not relieve any Party from liability for the willful breach of
any of its  representations,  warranties,  covenants or agreements  set forth in
this Agreement and (ii) if VIALOG terminates this Agreement for any reason other
than pursuant to Section 7.1, Section 7.2 or 11.11 VIALOG shall  immediately pay
to  the  Company  the  sum of  $100,000  to  reimburse  the  Company's  expenses
associated with this Agreement.

         8.3  Amendment.  This Agreement may be amended by the Parties by action
taken by or on  behalf  of  their  respective  Boards  of  Directors  and by the
Stockholders at any time prior to the Effective Time; provided,  however,  that,
after  approval  of  this  Agreement  and the  Merger  by the  Stockholders,  no
amendment,  which under  Applicable  Law may not be made without the approval of
the Stockholders,  may be made without such approval.  This Agreement may not be
amended to impose any additional  material obligation on a Party or to burden or
limit a material right of such Party except by an agreement in writing signed by
the Party so affected.

         8.4  Waiver.  At any time prior to the  Effective  Time,  except to the
extent Applicable Law does not permit, either VIALOG or VIALOG Merger Subsidiary
and the  Company  may (a)  extend  the  time for the  performance  of any of the
obligations  or other  acts of the  other,  subject,  however,  to the terms and
conditions of Section 8.1, (b) waive any inaccuracies in the representations and
warranties of the other contained in this Agreement or in any document delivered
pursuant to this Agreement and (c) waive compliance by the other with any of the
agreements,  covenants  or  conditions  contained  in this  Agreement.  Any such
extension  or waiver



                                       44
<PAGE>

shall be valid only if set forth in an agreement in writing  signed by the Party
or Parties to be bound thereby.

         8.5 Fees, Expenses and Other Payments.  All costs and expenses incurred
by  the  Parties  in  connection  with  this  Agreement,   the  Merger  and  the
Transactions   and  in  connection  with  compliance  with  Applicable  Law  and
Contractual Obligations as a consequence hereof and thereof,  including fees and
disbursements  of counsel,  financial  advisors and  accountants,  will be borne
solely and entirely by the Party which has incurred such costs and expenses.

         8.6 Effect of  Investigation.  The right of any Party to terminate this
Agreement  pursuant to Section 8.1 will remain  operative  and in full force and
effect  regardless of any  investigation  made by or on behalf of any Party, any
Person  Controlling  any such party or any of their  respective  Representatives
whether prior to or after the execution of this Agreement.


                                     ARTICLE
                                       9
                      THIS ARTICLE INTENTIONALLY LEFT BLANK


                                     ARTICLE
                                       10
                                 INDEMNIFICATION


         10.1 Indemnification.

         (a) Except as provided in Section 11.1, the Stockholders  agree to make
whole,  indemnify  and hold VIALOG,  VIALOG  Merger  Subsidiary,  the  Surviving
Corporation and their respective successors and permitted assigns (collectively,
the "VIALOG Indemnified Parties") harmless as a result of, from or against:

                  (i)      any and all Claims of the VIALOG Indemnified  Parties
                           or  other  Persons  based  upon,  attributable  to or
                           resulting from any material inaccuracy in or material
                           breach of any  representation or warranty on the part
                           of any one or more of the Company or the Stockholders
                           under this Agreement or any Collateral Document;

                  (ii)     any and all Claims of the VIALOG Indemnified  Parties
                           or  other  Persons  based  upon,  attributable  to or
                           resulting from the material breach of any covenant or
                           other agreement on the part of any one or more of the
                           Company or the  Stockholders  under this Agreement or
                           any Collateral Document;



                                       45
<PAGE>

                  (iii)    any and  all  Claims  and/or  taxes  incurred  by the
                           VIALOG  Indemnified  Parties  or other  Persons  with
                           respect to each tax year in which the  Company is not
                           treated  as an S  corporation  because  distributions
                           made by the  Company  caused it to violate the single
                           class of stock rule of IRC Section  1361(b)(1)(D) and
                           Treasury Regulation 1.1361-1(1); and

                  (iv)     any and  all  other  material  Claims  of the  VIALOG
                           Indemnified  Parties or other Persons incident to the
                           foregoing or to the enforcement of this Section.

         (b) Except as provided in Section  11.1,  VIALOG  agrees to make whole,
indemnify  (and in the case of  subparagraph  10.1(b)(ii),  defend  and hold the
Stockholders and their respective heirs (collectively,  the "Company Indemnified
Parties") harmless as a result of, from or against:

                  (i)      any and all Claims of the Company Indemnified Parties
                           or  other  Persons  based  upon,  attributable  to or
                           resulting from any material inaccuracy in or material
                           breach of any  representation or warranty on the part
                           of VIALOG  or VIALOG  Merger  Subsidiary  under  this
                           Agreement or any Collateral Document;

                  (ii)     any and all Claims  against the  Company  Indemnified
                           Parties   brought  by  parties   other  than   VIALOG
                           Indemnified  Parties and  arising out of  information
                           contained  in  the  Registration   Statement  or  the
                           Prospectus   relating   to   the   Company   or   the
                           Stockholders  (excluding herefrom that portion of any
                           damages  for  Claims  directly  arising  out  of  (A)
                           materially  inaccurate  information  contained in the
                           Registration    Statement    or    Prospectus    (and
                           specifically  excluding oral communications by VIALOG
                           or its  Representatives  to third  parties) about the
                           Company or the  Stockholders  furnished in writing to
                           VIALOG by the Company or the Stockholders or reviewed
                           by or on  behalf  of  the  Stockholders  pursuant  to
                           Section  6.20  hereof  or (B)  information  about the
                           Company or the  Stockholders  which was omitted  from
                           the Registration  Statement or Prospectus and was not
                           included (i) in this  Agreement,  (ii) any Disclosure
                           Schedule  to this  Agreement  or (iii) in any written
                           due  diligence  material  furnished by the Company or
                           the  Stockholders to VIALOG,  unless,  in the case of
                           (A) or (B) hereof,  the  information  was known to be
                           inaccurate by VIALOG or the  information not included
                           was otherwise known to VIALOG.

                  (iii)    any and all Claims of the Company Indemnified Parties
                           or  other  Persons  based  upon,  attributable  to or
                           resulting from the material breach of any covenant or
                           other  agreement  on the  part of  VIALOG



                                       46
<PAGE>

                           or VIALOG Merger  Subsidiary  under this Agreement or
                           any Collateral Document; and

                  (iv)     any and all  other  material  Claims  of the  Company
                           Indemnified  Parties or other Persons incident to the
                           foregoing or to the enforcement of this Section.

         (c) Except in connection with Claims pursuant to Section  10.1(a)(iii),
no one of the  Stockholders  will be required  to pay to the VIALOG  Indemnified
Parties for damages an aggregate amount in excess of an amount equal to the cash
received by such  Stockholder as the Merger  Consideration  pursuant to Sections
2.1(a).  VIALOG will not be required  to pay any Company  Indemnified  Party for
damages an  aggregate  amount in excess of the amount of cash  delivered to such
Company  Indemnified  Party  pursuant to Section  2.1(a)  other than damages for
Claims covered by Section  10.1(b)(ii)  hereof. No Claim for indemnification may
be  commenced  beyond the period  applicable  to such Claim set forth in Section
11.1.

         (d)  Notwithstanding  the  foregoing,  the  Stockholders  will  not  be
required to pay any amount for indemnification to the VIALOG Indemnified Parties
except to the extent that (i) the claim is in connection with any of the matters
set forth in Section 10.1(a)(iii);  or (ii) the aggregate amount of Claims under
this Section 10.1 asserted collectively against the Stockholders exceed $150,000
after giving effect to the provisions of subsection (e) hereof.

         (e) The claims of the Parties for  indemnification  shall be reduced by
tax benefits or insurance  proceeds  available to such Party,  and no multiplier
shall be used for calculation of Claims for damages.

         10.2 Procedures Concerning Claims by Third Parties; Payment of Damages;
Etc.

         (a) If any Claim is  instituted  or asserted  by any Person  other than
such indemnified party in respect of which payment may be sought hereunder,  the
indemnified  party will  reasonably  and promptly  cause  written  notice of the
assertion  of any  Claim of  which it has  knowledge  which  is  covered  by the
indemnities  under Section 10.1 to be forwarded to the  indemnifying  party.  In
such event, the  indemnifying  party will have the right, at its sole option and
expense,  to be represented  by counsel of its choice,  which must be reasonably
satisfactory to the indemnified party, and to defend against,  negotiate, settle
or otherwise deal with any Claim instituted or asserted by any Person other than
such indemnified party and indemnified  against  hereunder;  provided,  however,
that no settlement thereof will be made without the prior written consent of the
indemnified party, which consent will not be unreasonably withheld,  conditioned
or delayed.  If the  indemnifying  party  elects to defend  against,  negotiate,
settle or otherwise  deal with any such Claims,  it will within five (5) days of
receipt of said  notice  (or  sooner,  if the  nature of the Claim so  requires)
notify  in  writing  the  indemnified  party  of its  intent  to do  so.  If the
indemnifying party elects not to defend against,  negotiate, settle or otherwise
deal with any such Claims, fails to notify the indemnified party of its election
as herein provided or contests its obligation to indemnify the indemnified party
for such Claims under this Agreement,  the indemnified party may defend against,
negotiate,  settle or otherwise deal with such Claim. If the



                                       47
<PAGE>

indemnified  party  defends  any  Claim as a result of the  foregoing,  then the
indemnifying  party will reimburse the indemnified  party for reasonable  Claims
incurred in defending such Claim upon a final determination that the indemnified
party was entitled to indemnity hereunder. Neither the indemnifying party or the
indemnified  party may settle any Claim without the prior written consent of the
other party,  which consent will not be  unreasonably  withheld,  conditioned or
delayed.  If the  indemnifying  party  will  assume  the  defense  of any  Claim
instituted  or  asserted  by any Person  other than an  indemnified  party,  the
indemnified  party may  participate  by  observation  and  suggestion but not as
co-counsel,  at  such  party's  own  expense,  in the  defense  of  such  Claim.
Notwithstanding  the  foregoing,  or any contrary  provision of this  Agreement,
VIALOG shall have an absolute  duty to defend the  Stockholders  against  Claims
arising under Section 10.1(b)(ii) hereof regardless as to whether the Claims may
assert damages arising out of information  about the Company or the Stockholders
or their omission to provide information.

         (b) After any final  judgment  or award  will have been  rendered  by a
court,  arbitration  board (which may be engaged upon the consent of each of the
indemnifying  party and the  indemnified  parties) or  administrative  agency of
competent  jurisdiction  and the  expiration  of the  time in  which  to  appeal
therefrom, or a settlement will have been consummated,  or the indemnified party
and the  indemnifying  party will have arrived at a mutually  binding  agreement
with respect to a Legal Action hereunder, the indemnifying party will pay all of
the sums due and owing to the indemnified  party by wire transfer of immediately
available  funds  within  five  business  days  after the date of notice of such
judgment or award  conditioned,  however,  on the indemnifying party having been
finally  determined by the parties'  agreement or by final court or  arbitration
that the  indemnifying  party is  obligated  hereunder  to make said payment and
subject to the provisions of this Article 10.

         (c) The  failure of the  indemnified  party to give  reasonably  prompt
notice of any  Claim  instituted  or  asserted  by any  Person  other  than such
indemnified party and indemnified  against hereunder will not release,  waive or
otherwise  affect the  indemnifying  party's  obligations  with respect  thereto
except to the extent that the indemnifying  party can demonstrate actual loss or
material prejudice as a result of such failure.

         (d) No Legal Action to enforce a Claim for indemnity  will be stayed or
dismissed for failure to join one or more  indemnifying  parties or to permit an
indemnifying party to cross-claim  against another  indemnifying party, nor will
the failure to join as  indemnifying  party be deemed  grounds for  preventing a
separate  or  subsequent  Legal  Action to  enforce a Claim for  indemnification
against  such  party,  each  such  Legal  Action  being  deemed a  separate  and
independent  Claim for  indemnification.  A Legal  Action to enforce a Claim for
indemnity may be instituted in the  Commonwealth  of  Massachusetts  or State of
Minnesota,  or the jurisdiction to which each Party consents, or any other state
having jurisdiction with respect thereto.

         10.3  Access  to Books  and  Records.  In the  event of any  claim  for
indemnity under Section 10.1 or 10.2, VIALOG agrees to give the Stockholders and
their Representatives  reasonable access to all files,  documents,  instruments,
papers,  books and records relating to the Company or the  Stockholders,  and to
all  employees  of  the  Company  in  connection  with  the



                                       48
<PAGE>

matters  for which  indemnification  is sought to the  extent  the  Stockholders
reasonably deem necessary in connection with their rights and obligations  under
this Article 10.

         10.4 Exclusivity.  After the Effective Time, to the extent permitted by
Law,  the  indemnities  set  forth in this  Article  10  shall be the  exclusive
remedies of the VIALOG Indemnified  Parties and the Company  Indemnified Parties
for any misrepresentation, breach of warranty or nonfulfillment or failure to be
performed  of any covenant or agreement  contained  in this  Agreement,  and the
parties shall not be entitled to any further indemnification rights or claims of
any nature  whatsoever in respect  thereof or right of rescission,  all of which
the parties hereto hereby waive; except, in both instances, for (i) claims based
upon  fraud or willful  or  reckless  misconduct  or (ii)  claims  for  specific
performance, injunctive relief or other equitable remedies.


                                     ARTICLE
                                       11
                               GENERAL PROVISIONS


         11.1 Effectiveness of Representations; Etc.

         (a) Regardless of any  investigation  made by or on behalf of any other
party  hereto,  any Person  Controlling  such  party or any of their  respective
Representatives whether prior to or after the execution and consummation of this
Agreement, the representations,  warranties,  covenants and agreements contained
in  Article  3,  Article 4 and  Article 5 will  survive  the  Merger  and remain
operative and in full force and effect as follows:

                  (i)      Section  3.11,  Section 3.12,  Section 3.21,  Section
                           3.23, Section 3.25, Section 5.7 and Section 5.9 until
                           sixty  (60) days  after  the  applicable  statute  of
                           limitations, as the same may be extended from time to
                           time, has terminated and Section 3.1 until expiration
                           of the last time  period  set  forth in this  Section
                           11.1(a)(i);

                  (ii)     Section 3.15,  Section 4.2,  Section 5.1, Section 5.2
                           and  Section 5.3 for six years  following  the Merger
                           Closing; and

                  (iii)    all other  Sections,  one year  following  the Merger
                           Closing.

         (b)  Except as set  forth in  Section  8.2 and as  limited  by  Section
11.1(a) hereof,  the  representations,  warranties,  covenants and agreements of
each  Party will  survive  and remain  operative  and in full force and  effect,
regardless  of any  investigation  made by or on behalf of any other Party,  any
Person  Controlling  any such Party or any of their  respective  Representatives
whether such  investigation was prior to or after the execution and consummation
of this Agreement.

                                       49
<PAGE>

         11.2  Notices.  All  notices  and  other  communications  given or made
pursuant  to this  Agreement  will be in writing and will be deemed to have been
duly  given  or  made as of the  date  delivered  or  transmitted,  and  will be
effective  upon  receipt,  if delivered  personally,  mailed by  certified  mail
(postage  prepaid,  return  receipt  requested)  to the Parties at the following
addresses or sent by electronic transmission to the fax number specified below:

         (a) If to VIALOG or VIALOG Merger Subsidiary:

                               VIALOG Corporation
                               Attention: Glenn Bolduc, President
                               Ten New England Business Center
                               Suite 302
                               Andover, MA  01810

         with a copy to:

                               Mirick, O'Connell, DeMallie & Lougee, LLP
                               Attention:  David L. Lougee, Esq.
                               1700 BankBoston Tower
                               Worcester, MA 01608
                               Fax: (508) 791-8502

         (b) If to the Stockholders:

                               Daniel L. Barber
                               648 Hillwood Drive
                               Shakopee, MN 55379

                               Robert M. Kalla
                               4955 86th Street
                               Chaska, MN 55318

                               with a copy to:

                               Briggs and Morgan P.A.
                               Attention:  Michael J. Grimes, Esq.
                               2400 IDS Center
                               80 South 8th Street
                               Minneapolis, Minnesota  55402
                               Fax:  (612) 334-8650

         Any address for notice as  hereinabove  provided  may be changed by the
party or person for whom the change is made by giving  notice of said  change in
the manner provided in this Section.



                                       50
<PAGE>

         11.3  Headings  The  headings  contained  in  this  Agreement  are  for
reference  purposes  only  and  will  not  affect  in any  way the  meaning  and
interpretation of this Agreement.

         11.4 Severability.  If any term or other provision of this Agreement is
invalid,  illegal or  incapable  of being  enforced by any rule of law or public
policy,  all other conditions and provisions of this Agreement will nevertheless
remain in full force and effect so long as the  economic or legal  substance  of
the  Transactions is not affected in any manner Adverse to any Party.  Upon such
determination that any term or other provisions is invalid, illegal or incapable
of being  enforced,  the  Parties  will  negotiate  in good faith to modify this
Agreement  so as to effect  the  original  intent of the  Parties  as closely as
possible to the fullest  extent  permitted by  Applicable  Law in an  acceptable
manner to the end that the Transactions are fulfilled to the extent possible.

         11.5 Entire  Agreement.  This  Agreement  (together with the Disclosure
Schedule, the Supplement, the Confidentiality Agreement and the other Collateral
Documents delivered in connection herewith), constitutes the entire agreement of
the Parties and supersedes all prior agreements (other than the  Confidentiality
Agreement) and undertakings,  both written and oral, between the Parties, or any
of them, with respect to the subject matter hereof.

         11.6 Assignment. This Agreement may not be assigned by operation of law
or otherwise and any purported  assignment will be null and void,  provided that
VIALOG  may cause a wholly  owned  Subsidiary  of VIALOG to be  substituted  for
VIALOG or  VIALOG  Merger  Subsidiary  as the party to the  Merger  and may,  in
addition, assign the other rights, but not its obligations,  including,  without
limitation,  its obligation for payment of the Merger Consideration,  under this
Agreement to such Subsidiary.

         11.7 Parties in Interest. This Agreement will be binding upon and inure
solely to the benefit of each Party,  and nothing in this Agreement,  express or
implied (other than the provisions of Section 6.7, which provisions are intended
to benefit and may be enforced by the beneficiaries  thereof), is intended to or
will  confer  upon any  Person  any  right,  benefit  or  remedy  of any  nature
whatsoever under or by reason of this Agreement.

         11.8  Governing  Law.  Except to the extent  that  Delaware  Law may be
applicable to the Merger,  this  Agreement will be governed by, and construed in
accordance  with,  the  substantive  laws of the  State  of  Delaware  governing
contracts made and to be performed in such jurisdiction,  regardless of the laws
that might otherwise govern under applicable principles of conflicts of law.

         11.9  Enforcement  of the Agreement.  Each Party  recognizes and agrees
that each other Party's  remedy at law for any breach of the  provisions of this
Agreement  would be  inadequate  and agrees that for breach of such  provisions,
such Party will, in addition to such other remedies as may be available to it at
law or in  equity  or as  provided  in  this  Agreement,  be  entitled  to  seek
injunctive  relief  and  to  enforce  its  rights  by  an  action  for  specific
performance to the extent  permitted by Applicable Law. Nothing herein contained
will be  construed  as  prohibiting  a Party from  pursuing  any other  remedies
available to such Party for any breach or threatened breach



                                       51
<PAGE>

hereof or failure to take or refrain  from any action as required  hereunder  to
consummate the Merger and carry out the Transactions.

         11.10  Counterparts.  This  Agreement  may be  executed  in one or more
counterparts, and by the different Parties hereto in separate counterparts, each
of which when  executed  will be deemed to be an original but all of which taken
together will constitute one and the same agreement.

         11.11  Supplementation  of  Schedules.  Any Party  hereto  may elect to
deliver  a  supplement  (a  "Supplement")  to one  or  more  of  the  Disclosure
Schedules,  contemplated by this Agreement and previously delivered to the other
Parties in  accordance  with the  procedures  set forth in this Section 11.11 as
follows:

         (a)  prior to the  Effective  Date any and all  Supplements  must be in
writing and must be delivered to the other  Parties  hereto before the date that
is two (2) days prior to the  scheduled  Effective  Date (such date of delivery,
the "Delivery  Date").  The other Parties hereto shall be given the  opportunity
during the two (2)  business  days  following  the  Delivery  Date to consider a
proposed  Supplement,  and if such Parties do not object to the contents thereof
within  such period the  Schedules  in  question  will be deemed  amended by the
Supplement.  If the other Party or Parties object to a proposed Supplement,  the
sole remedy of such objecting  Party or Parties shall be the termination of this
Agreement in accordance with Section 8 hereof; and

         (b) any and all Supplements  within two (2) days prior to the Effective
Date and  thereafter  must be in  writing  and  delivered  to the other  Parties
pursuant to Section 11.2 hereof and will only be deemed to amend a Schedule with
the written consent of the other parties.


                                     ARTICLE
                                       12
                                   DEFINITIONS


         As used in this Agreement,  unless the context otherwise requires,  the
following  terms  (or any  variant  in the  form  thereof)  have  the  following
respective  meanings.  Terms  defined  in the  singular  will have a  comparable
meaning when used in the plural, and vice versa, and the reference to any gender
will be deemed to  include  all  genders.  Any  reference  to any  statutory  or
regulatory provision will be deemed to be a reference to any successor statutory
or  regulatory  provision.  Unless  otherwise  defined or the context  otherwise
clearly  requires,  terms for which meanings are provided in this Agreement will
have such  meanings  when used in the  Disclosure  Schedule and each  Collateral
Document,  notice,  certificate,   communication,  opinion,  or  other  document
executed  or required to be  executed  pursuant  hereto or thereto or  otherwise
delivered, from time to time, pursuant hereto or thereto.

         Accountants means KPMG Peat Marwick, LLP.



                                       52
<PAGE>

         Adverse,  Adversely, when used alone or in conjunction with other terms
(including  without  limitation  "Affect,"  "Change" and "Effect")  means,  with
respect to the Company, VIALOG or VIALOG Merger Subsidiary,  as the case may be,
any Event  which  could  reasonably  be  expected  to (a)  adversely  affect the
validity or enforceability of this Agreement or any Collateral Document executed
or required to be executed  pursuant hereto or thereto,  or (b) adversely affect
the business, operations, management, properties or the condition, (financial or
other),  or results of  operation  of the  Company as a whole,  VIALOG or VIALOG
Merger Subsidiary,  as they case may be, or (c) impair the Company's or VIALOG's
or VIALOG Merger Subsidiary's ability to fulfill its obligations under the terms
of this Agreement or any Collateral Document executed or required to be executed
pursuant  hereto or thereto,  or (d) adversely  affect the aggregate  rights and
remedies  of  VIALOG or the  Company  under  this  Agreement  or any  Collateral
Document executed or required to be executed pursuant hereto or thereto,  in all
cases, unless otherwise  specifically set forth, in a material respect or manner
or to a material degree.  Adverse or Adversely shall not contemplate a change in
business conditions or the effect of changes in the telecommunications industry.

         Affiliate or  Affiliated  means,  with  respect to any Person,  (a) any
other Person at the time  directly or indirectly  controlling,  controlled by or
under direct or indirect  common control with such Person,  (b) any other Person
of which such Person at the time owns, or has the right to acquire,  directly or
indirectly,  twenty  percent  (20%) or more of any class of the capital stock or
beneficial  interest,  (c) any other Person  which at the time owns,  or has the
right to acquire,  directly or  indirectly,  twenty percent (20%) or more of any
class of the  capital  stock or  beneficial  interest  of such  Person,  (d) any
executive  officer  or  director  of  such  Person,  (e)  with  respect  to  any
partnership,  joint venture or similar Entity, any general partner thereof,  and
(f) when used with  respect to an  individual,  will  include any member of such
individual's immediate family or a family trust.

         Aggregate  Equity means such number of shares of Company Stock as shall
equal the  aggregate  of (a) the  Shares,  and (b) all shares of  Company  Stock
otherwise  issuable based upon the  affirmative  election to exercise or convert
outstanding Option Securities and/or Convertible  Securities pursuant to Section
2.4.

         Aggregate  Merger  Consideration  will have the meaning  given to it in
Section 2.1(a).

         Agreement  means this  Agreement  as  originally  in effect,  including
unless the context otherwise specifically requires, all schedules, including the
Disclosure  Schedule  and exhibits to this  Agreement,  and as the same may from
time to time be supplemented, amended, modified or restated in the manner herein
or therein provided.

         Applicable  Law means any Law of any  Authority,  whether  domestic  or
foreign,  including without limitation all federal and state securities laws and
Environmental  Laws,  to or by  which  a  Person  or to any of its  business  or
operations is subject or any of its property or assets is bound.

         Authority  means  any  governmental  or  quasi-governmental  authority,
whether  administrative,  executive,  judicial,  legislative  or  other,  or any
combination   thereof,   including



                                       53
<PAGE>

without limitation any federal, state,  territorial,  county, municipal or other
government or governmental or quasi-governmental agency, arbitrator,  authority,
board,  body,  branch,  bureau,  central  bank or  comparable  agency or Entity,
commission, corporation, court, department,  instrumentality,  master, mediator,
panel, referee, system or other political unit or subdivision or other Entity of
any of the foregoing, whether domestic or foreign.

         BCA will have the meaning given to it in the Preamble.

         Benefit  Arrangement means any material benefit arrangement that is not
a  Plan,  including  (a)  any  employment  or  consulting  agreement,   (b)  any
arrangement providing for insurance coverage or workers' compensation  benefits,
(c) any  incentive  bonus or deferred  bonus  arrangement,  (d) any  arrangement
providing termination  allowance,  severance or similar benefits, (e) any equity
compensation  plan, (f) any deferred  compensation plan and (g) any compensation
policy and practice.

         Certificate will have the meaning given to it in Section 2.1(a).

         Claims means any and all Tax Claims, debts,  liabilities,  obligations,
losses,  damages,  deficiencies,  assessments  and penalties,  together with all
Legal Actions, pending or threatened,  claims and judgments of whatever kind and
nature  relating  thereto,   and  all  reasonable  fees,  costs,   expenses  and
disbursements (including without limitation attorneys' fees, costs and expenses)
relating to any of the foregoing.

         COBRA means the Consolidated Omnibus Budget Reconciliation Act of 1985,
as amended,  as set forth in Section  4980B of the Code and Part 6 of Title I of
ERISA.

         Code will have the meaning given to it in the Preamble.

         Collateral  Document  means  any  agreement,  instrument,  certificate,
opinion,  memorandum,  schedule  or  other  document  delivered  by a Party or a
Stockholder  pursuant to this Agreement or in connection with the Merger and the
Transactions.  For purposes of the  representations,  warranties,  covenants and
agreements of the Company and the  Stockholders,  on the one hand, or VIALOG and
VIALOG Merger Subsidiary on the other,  under this Agreement and with respect to
opinions to be delivered  pursuant to this Agreement,  except to the extent of a
Party's actual knowledge,  the Company and the Stockholders or VIALOG and VIALOG
Merger  Subsidiary,  as the  case  may  be,  assume  no  responsibility  for the
authority of or genuineness of signatures relating to the others as counterparts
or their representations, warranties, covenants and agreements.

         Company will have the meaning given to it in the Preamble.

         Company  Indemnified  Parties  will  have  the  meaning  given to it in
Section 10.1(b).

         Company's  knowledge  (including  the  term  "to the  knowledge  of the
Company")  means the knowledge,  information or belief of any Company  director,
executive officer or the



                                       54
<PAGE>

Stockholders;  and that such director, executive officer or Stockholders,  after
reasonable investigation,  will have reason to believe and will believe that the
subject representation or warranty is true and accurate as stated.

         Company Stock will have the meaning given to it in Section 2.1(a).

         Confidentiality  Letter  will have the  meaning  given to it in Section
6.1(c).

         Contract  or  Contractual   Obligation   means  any  term,   condition,
provision,   representation,   warranty,   agreement,   covenant,   undertaking,
commitment,  indemnity  or other  obligation  set  forth  in the  Organizational
Documents  of the  obligee  or  which  is  outstanding  or  existing  under  any
instrument,  contract, lease or other contractual undertaking (including without
limitation any instrument  relating to or evidencing any  Indebtedness) to which
the  obligee  is a party or by which it or any of its  business  is  subject  or
property or assets is bound.

         Control (including the terms  "controlled,"  "controlled by" and "under
common control with") means the possession, directly or indirectly or as trustee
or executor,  of the power to direct or cause the direction of the management or
policies of a Person,  or the disposition of such Person's assets or properties,
whether through the ownership of stock, equity or other ownership,  by contract,
arrangement or understanding,  or as trustee or executor,  by contract or credit
arrangement or otherwise.

         Convertible  Securities means any evidences of indebtedness,  shares of
capital  stock  (other  than  common  stock)  or other  securities  directly  or
indirectly convertible into or exchangeable for Shares, whether or not the right
to convert or exchange  thereunder is immediately  exercisable or is conditioned
upon the passage of time,  the  occurrence  or  non-occurrence  or  existence or
non-existence of some other Event, or both.

         DBCL will have the meaning given to it in the Preamble.

         Disclosure  Schedule shall mean (i) the schedule prepared and delivered
by the Company or the Stockholders to VIALOG and the VIALOG Merger Subsidiary or
by VIALOG and the VIALOG Merger  Subsidiary  to the Company or the  Stockholders
and  dated as of the date  hereof,  and (ii) the  Supplement  (if  accepted,  as
described in Section 11.11 below), both of which set forth the exceptions to the
representations  and warranties  contained herein and certain other  information
called for by this Agreement. Unless otherwise specified each referenced in this
Agreement to any  numbered  schedule is a reference  to that  numbered  schedule
which is  included in the  Disclosure  Schedule.  As  provided in Section  11.11
hereof,  no later than two (2) full calendar days prior to the scheduled date of
Closing, VIALOG, VIALOG Merger Subsidiary,  the Company and the Stockholders may
deliver a Supplement to the Disclosure  Schedule so delivered,  and if, and only
if, such  Supplement  is accepted by the other Party as provided in such Section
11.11,  the phrase  the  "Disclosure  Schedule"  shall be deemed to refer to the
initial Disclosure Schedule, as so supplemented.



                                       55
<PAGE>

         Distribution means, with respect to the Company: (a) the declaration or
payment  of any  dividend  (except  dividends  payable  in  common  stock of the
Company)  on or in respect  of any  shares of any class of capital  stock of the
Company,  (b) the purchase,  redemption or other retirement of any shares of any
class of capital stock of the Company,  and (c) any other  distribution on or in
respect of any shares of any class of capital stock of the Company.

         Effective Date means the effective date of the  Registration  Statement
and commencement of the Public Offering.

         Effective Time will have the meaning given to it in Section 1.4.

         Employment   Arrangement   means,  with  respect  to  any  Person,  any
employment,  consulting,  retainer,  severance or similar  contract,  agreement,
plan,  arrangement or policy (exclusive of any which is terminable within thirty
(30) days  without  liability,  penalty or payment of any kind by such Person or
any  Affiliate),  or providing for severance,  termination  payments,  insurance
coverage  (including  any  self-insured  arrangements),   workers  compensation,
disability benefits,  life, health, medical dental or hospitalization  benefits,
supplemental unemployment benefits,  vacation or sick leave benefits, pension or
retirement benefits or for deferred compensation, profit-sharing, bonuses, stock
options,  stock  purchase or  appreciation  rights or other  forms of  incentive
compensation or  post-retirement  insurance,  compensation  or benefits,  or any
collective  bargaining  or  other  labor  agreement,  whether  or not any of the
foregoing is subject to the provisions of ERISA.

         Entity  means  any  corporation,   firm,  unincorporated  organization,
association,  partnership,  limited  liability  company,  trust  (inter vivos or
testamentary),  estate of a deceased, insane or incompetent individual, business
trust,  joint stock  company,  joint  venture or other  organization,  entity or
business,  whether acting in an individual,  fiduciary or other capacity, or any
Authority.

         Environmental  Law  means any Law  relating  to or  otherwise  imposing
liability or  standards of conduct  concerning  pollution or  protection  of the
environment or occupational health and safety, including without limitation Laws
relating to emissions,  discharges, releases or threatened releases of Hazardous
Materials  or  other  pollutants,  contaminants,  chemicals,  noises,  odors  or
industrial,  toxic or  hazardous  substances,  materials  or wastes,  whether as
matter or energy, into the environment (including,  without limitation,  ambient
air,  surface water,  ground water,  mining or  reclamation or mined land,  land
surface  or  subsurface  strata)  or  otherwise  relating  to  the  manufacture,
processing,   generation,   distribution,  use,  treatment,  storage,  disposal,
cleanup,  transport  or  handling  of  pollutants,  contaminants,  chemicals  or
industrial,  toxic or hazardous substances,  materials or wastes.  Environmental
Laws  includes  the  Comprehensive  Environmental  Response,   Compensation  and
Liability Act of 1980 (42 U.S.C.  Section 9601 et seq.), the Hazardous  Material
Transportation Act (49 U.S.C.  Section 1801 et seq.), the Resource  Conservation
and Recovery Act of 1976 (42 U.S.C.  Section  6901 et seq.),  the Federal  Water
Pollution  Control Act (33 U.S.C.  Section 1251 et seq.),  the Clean Air Act (42
U.S.C.  Section  7401 et seq.),  the Toxic  Substances  Control  Act (15  U.S.C.
Section 2601 et seq.), the Occupational Safety and Health Act of 1970 (29 U.S.C.
Section 651 et seq.), the Federal  Insecticide  Fungicide and Rodenticide Act (7
U.S.C. Section 136 et seq.), and the Surface



                                       56
<PAGE>

Mining Control and Reclamation Act of 1977 (30 U.S.C. Section 1201 et seq.), and
any analogous  future  federal,  or present or future  state,  local or foreign,
Laws, and the rules and regulations  promulgated  thereunder all as from time to
time in effect, and any reference to any statutory or regulatory  provision will
be deemed to be a reference to any successor statutory or regulatory provision.

         Environmental Permit means any Governmental  Authorization  required by
or pursuant to any Environmental Law.

         Environmental  Requirements  means all  applicable  present  and future
Governmental  Authorizations,   Private  Authorizations  or  other  requirements
(including  without  limitation  those  pertaining to  reporting,  licensing and
permitting)  relating to or required  by or pursuant to any  Environmental  Law,
including without limitation all requirements pertaining or relating to:

         (a)      the manufacture,  processing,  distribution,  use,  treatment,
                  storage,   disposal,   transport   or  handling   of,  or  the
                  remediation,  emission,  discharge  or  release  into the air,
                  surface water, groundwater or land of, Hazardous Materials;

         (b)      the  protection  of the health and safety of  employees or the
                  public;

         (c)      the reclamation or restoration of land; and

         (d)      the ownership or operation of underground storage tanks.

         ERISA means the Employee Retirement Security Act of 1974, and the rules
and regulations thereunder, all as from time to time in effect, or any successor
law,  rules or  regulations,  and any  reference to any  statutory or regulatory
provision  will be  deemed  to be a  reference  to any  successor  statutory  or
regulatory provision.

         ERISA  Affiliate  means any Person that is treated as a single employer
with the Company or any of its Subsidiaries  under Sections 414(b),  (c), (m) or
(o) of the Code or Section 4001(b)(1) of ERISA.

         Event means the occurrence or existence of any act,  action,  activity,
circumstance,  condition,  event, fact,  failure to act,  omission,  incident or
practice, or any set or combination of any of the foregoing.

         Exchange  Merger  Consideration  will have the  meaning  given to it in
Section 2.1(a).

         Financial  Statements  will  have the  meaning  given to it in  Section
3.2(a).

         GAAP means generally accepted  accounting  principles as in effect from
time to time in the United States of America.



                                       57
<PAGE>

         Governmental Authorizations means all approvals, concessions, consents,
franchises,  licenses, permits, plans, registrations and other authorizations of
each applicable Authority.

         Governmental Filings means all filings, including franchise and similar
Tax filings,  and the payment of all fees,  assessments,  interest and penalties
associated with such filings, with each applicable Authority.

         Guaranty or Guaranteed means any agreement,  undertaking or arrangement
by which  the  Company  or any of its  Subsidiaries,  VIALOG  or  VIALOG  Merger
Subsidiary, as the case may be, guarantees,  endorses or otherwise becomes or is
liable,  directly  or  indirectly,  upon any  Indebtedness  of any other  Person
including without  limitation the payment of amounts drawn down by beneficiaries
of letters of credit (other than by endorsements  of negotiable  instruments for
deposit or  collection in the ordinary  course of  business).  The amount of the
obligor's  obligation  under any Guaranty  will be deemed to be the  outstanding
amount (or maximum permitted amount, if larger) of the Indebtedness  directly or
indirectly guaranteed thereby (subject to any limitation set forth therein).

         Hazardous  Materials means any substance (in whatever state or matter):
(a) the  presence  of which  requires  investigation  or  remediation  under any
Environmental  Law;  (b) that is  defined  as a  "hazardous  waste",  "hazardous
material" or  "hazardous  substance"  under any  Environmental  Law; (c) that is
toxic, explosive, corrosive, pollutive,  contaminating,  flammable,  infectious,
radioactive,  carcinogenic, mutagenic or otherwise hazardous and is regulated by
any Authority; (d) that contains or consists of petroleum or petroleum products,
or (e) that contains or consists of PCBs,  asbestos,  or urea  formaldehyde foam
insulation.

         Indebtedness  means,  with  respect to the  Company or VIALOG or VIALOG
Merger  Subsidiary,  as the case may be, (a) all items,  except items of capital
stock or of surplus or of general  contingency  or deferred  tax reserves or any
minority  interest in any Subsidiary to the extent such interest is treated as a
liability  with  indeterminate  term on the  consolidated  balance  sheet of the
Company  or  VIALOG,  which  in  accordance  with  GAAP  would  be  included  in
determining  total liabilities as shown on the liability side of a balance sheet
of the  Company  or VIALOG  or VIALOG  Merger  Subsidiary,  (b) all  obligations
secured by any Lien to which any  property or asset owned or held by the Company
or VIALOG  or any  VIALOG  Merger  Subsidiary  is  subject,  whether  or not the
obligation  secured thereby will have been assumed,  and (iii) to the extent not
otherwise included, all Contractual  Obligations of the Company or VIALOG or any
VIALOG Merger Subsidiary constituting  capitalized leases and all obligations of
the Company or VIALOG or any VIALOG  Merger  Subsidiary  with  respect to Leases
constituting part of a sale and leaseback arrangement.

         Intangible  Assets  means all  assets  and  property  lacking  physical
properties the evidence of ownership of which must  customarily be maintained by
independent  registration,  documentation,  certification,  recordation or other
means.

         Law  means  any (a)  administrative,  judicial,  legislative  or  other
action,  code,  consent  decree,  constitution,  decree,  directive,  enactment,
finding, guideline, law, injunction,



                                       58
<PAGE>

interpretation,  judgment,  order,  ordinance,  policy statement,  proclamation,
promulgation, regulation, requirement, rule, rule of law, rule of public policy,
settlement  agreement,  statute, or writ of any Authority,  domestic of foreign;
(b)  the  common  law,  or  other  legal  or  quasi-legal   precedent;   or  (c)
arbitrator's,    mediator's   or   referee's   award,   decision,   finding   or
recommendation;  including,  in each such case or instance,  any interpretation,
directive,  guideline  or  request,  whether  or not  having  the  force  of law
including,  in all cases,  without  limitation any particular  section,  part or
provision thereof.

         Lease means any lease of property, whether real, personal or mixed, and
all amendments thereto.

         Legal  Action  means  any   litigation  or  legal  or  other   actions,
arbitrations, counterclaims,  investigations, proceedings, requests for material
information by or pursuant to the order of any Authority, or suits, at law or in
arbitration,  equity  or  admiralty  commenced  by any  Person,  whether  or not
purported to be brought on behalf of a party hereto  affecting such party or any
of such party's business, property or assets.

         Lien means any of the following:  mortgage,  lien (statutory or other);
preference,  priority or other  security  agreement,  arrangement  or  interest;
hypothecation,  pledge or other deposit arrangement;  assignment;  charge; levy;
executory seizure; attachment; garnishment; encumbrance (including any easement,
exception,   variance,   reservation  or  limitation,   right  of  way,   zoning
restriction, building to use restriction, and the like); conditional sale, title
retention  or other  similar  agreement,  arrangement,  device  or  restriction;
preemptive or similar right;  any financing  lease involving  substantially  the
same  economic  effect as any of the  foregoing;  the  filing  of any  financing
statement   under  the  Uniform   Commercial  Code  or  comparable  law  of  any
jurisdiction;  restriction on sale, transfer,  assignment,  disposition or other
alienation; or any option, equity, claim or right of or obligation to, any other
Person, of whatever kind and character.

         Margin Rules means  Regulations  G, T, U or X of the Board of Governors
of the Federal Reserve System, 12 C.F.R., parts 207, 220, 221 and 224, as now in
effect.

         Material  or  Materiality  for the  purposes of this  Agreement,  will,
unless specifically stated to the contrary,  be determined without regard to the
fact  that  various  provisions  of this  Agreement  set forth  specific  dollar
amounts.

         Material  Agreement or Material  Commitment  means, with respect to the
Company or VIALOG or VIALOG Merger  Subsidiary any Contractual  Obligation which
(a) was not entered  into in the ordinary  course of  business,  (b) was entered
into in the ordinary course of business which (i) involves the purchase, sale or
lease of goods or materials or  performance  of services  aggregating  more than
Twenty-Five  Thousand  Dollars  ($25,000),  (ii) extends for more than three (3)
months,  or (iii) is not  terminable on thirty (30) days or less notice  without
penalty or other payment, (c) involves Indebtedness for money borrowed in excess
of One Hundred Thousand Dollars  ($100,000),  (d) is or otherwise  constitutes a
written  agency,  dealer,  license,  distributorship,  sales  representative  or
similar written agreement,  or (e) would account for more



                                       59
<PAGE>

than five percent (5%) of purchases or sales projected to be made by the Company
for the year ended December 31, 1997.

         Merger will have the meaning given to it in the Preamble.

         Merger Closing will have the meaning given to it in Section 1.3.

         Merger Closing Date means the date on which the Merger is closed.

         Merger  Consideration  will  have the  meaning  given to it in  Section
2.1(a).

         Minnesota  Telephone Act means Minnesota Statute ss.237.16,  ss.237.23,
ss.237.58, ss.237.59 and ss.237.60 and related rules.

         Multiemployer  Plan means a "multiemployer  plan" within the meaning of
Section 4001(a)3 of ERISA.

         Option Securities means all rights,  options and warrants, all calls or
commitments  evidencing  the right,  to  subscribe  for,  purchase or  otherwise
acquire Shares of Convertible Securities,  whether or not the right to subscribe
for, purchase or otherwise acquire is immediately  exercisable or is conditioned
upon the passage of time, the occurrence or  non-occurrence  or the existence or
non-existence of some other Event.

         Organizational  Documents  means,  with  respect to a Person which is a
corporation,  its charter, its by-laws, and all Stockholder  agreements,  voting
trusts and similar  arrangements  applicable to any of its capital  stock,  and,
with respect to a Person which is a partnership,  its agreement and  certificate
of partnership,  any agreement  among  partners,  and any management and similar
agreements  between the partnership  and any general  partners (or any Affiliate
thereof).

         Other Transaction means a transaction or series of related transactions
(other than the Merger)  resulting  in (a) any change in control of the Company,
(b) any merger or  consolidation  of the  Company,  regardless  of  whether  the
Company is the surviving Entity,  (c) any tender offer or exchange offer for, or
any  acquisition  of, any  securities  of the Company,  or (d) any sale or other
disposition of assets of the Company not otherwise permitted under Section 3.18.

         Party means any natural individual or any Entity.

         PBGC means the  Pension  Benefit  Guaranty  Corporation  and any Entity
succeeding to any or all of its functions under ERISA.

         Person means any natural individual or any Entity.

         Plan means any  "employee  benefit  plan" as defined in Section 3(3) of
ERISA  (whether or not  terminated)  which is (or was in the case of a frozen or
terminated plan) maintained by the



                                       60
<PAGE>

Company  or any  Subsidiary  or  VIALOG or VIALOG  Merger  Subsidiary,  and with
respect  to which the  Company,  such  Subsidiary  or  VIALOG  or VIALOG  Merger
Subsidiary  or, in the case of any such plan  subject  to Title IV of ERISA,  an
ERISA Affiliate is (or, if such plan were  terminated at such time,  would under
Section 4069 of ERISA be deemed to be) an  "employer" as defined in Section 3(5)
of ERISA, other than a Multiemployer Plan.

         Private  Authorizations  means all  approvals,  concessions,  consents,
franchises,  licenses,  permits,  and other authorizations of all Persons (other
than Authorities)  including  without  limitation those with respect to patents,
trademarks, service marks, trade names, copyrights,  computer software programs,
technology and know-how.

         Prospectus  means the form of  prospectus  first filed by VIALOG in the
Registration  Statement,  any  preliminary  prospectus and the prospectus  filed
pursuant  to Rule  424(b)  under  the  Securities  Act and  any  supplements  or
amendments  thereto  filed with the SEC prior to the  termination  of the Public
Offering.

         Public Offering will have the meaning given to it in the Preamble.

         Public  Offering  Closing  Date  means  the  date on which  the  Public
Offering is closed.

         Registration  Statement means the registration statement (including the
Prospectus,  exhibits, financial statements and schedules included therein), and
all amendments thereof (including post-effective amendments and any registration
statement  filed under Rule 462(b) with respect to the Public  Offering),  filed
under the  Securities Act  registering  the shares of VIALOG Stock to be sold in
the  Public  Offering  in  accordance  with  the  terms  and  conditions  of the
Underwriting Agreement.

         Representatives  of a Party means the officers,  directors,  employees,
accountants,  counsel, financial advisors,  consultants,  underwriters and other
representatives of such Party.

         SEC means the Securities  and Exchange  Commission of the United States
or any successor Authority.

         Securities  Act means  the  Securities  Act of 1933,  and the rules and
regulations of the Commission thereunder, all as from time to time in effect, or
any successor law, rules or regulations.

         Shares will have the meaning given to it in Section 2.1(a).

         Special Meeting will have the meaning given to it in Section 1.2.

         Stockholders  means  Daniel L. Barber and Robert M. Kalla and all other
Persons entitled to Merger Consideration pursuant to Sections 2.1(a).

                                       61
<PAGE>

         Subsidiary  means,  with respect to a Person,  any Entity a majority of
the capital stock  ordinarily  entitled to vote for the election of directors of
which,  or if no such  voting  stock is  outstanding,  a majority  of the equity
interests of which, is owned directly or indirectly, legally or beneficially, by
such Person or any other Person controlled by such Person.

         Supplement will have the meaning given to it in Section 11.11.

         Surviving Corporation will have the meaning given to it in Section 1.1.

         Tax (and "Taxable",  which means subject to Tax), means with respect to
the Company or VIALOG or any VIALOG Merger  Subsidiary,  (a) all taxes (domestic
or  foreign),  including  without  limitation  any income  (net,  gross or other
including   recapture  of  any  tax  items  such  as  investment  tax  credits),
alternative or add-on minimum tax, gross income,  gross receipts,  gains, sales,
use, leasing, lease, user, ad valorem, transfer, recording,  franchise, profits,
property (real or personal, tangible or intangible),  fuel, license, withholding
on amounts paid to or by the Company or VIALOG or any VIALOG Merger  Subsidiary,
payroll,  employment,  unemployment,  social security, excise severance,  stamp,
occupation, premium, environmental or windfall profit tax, custom, duty or other
tax, governmental fee or other like assessment or charge of any kind whatsoever,
together with any interest, levies, assessments, charges, penalties, addition to
tax or  additional  amount  imposed  by any Taxing  Authority,  (b) any joint or
several  liability of the Company or VIALOG or any VIALOG Merger Subsidiary with
any other  Person for the payment of any amounts of the type  described  in (a),
and (c) any liability of the Company or VIALOG or any VIALOG  Merger  Subsidiary
for the payment of any amounts of the type  described  in (a) as a result of any
express or implied obligation to indemnify any other Person.

         Tax Claim means any Claim  which  relates to Taxes,  including  without
limitation the representations and warranties set forth in Section 3.11.

         Tax Return or Returns  means all  returns,  consolidated  or  otherwise
(including without limitation  information  returns),  required to be filed with
any Authority with respect to Taxes.

         Taxing Authority means any Authority  responsible for the imposition of
any Tax.

         Termination  Date means (a)  September 30, 1998, or (b) such date after
September 30, 1998 as to which the parties agree.

         Transactions  means  the  other   transactions   contemplated  by  this
Agreement or the Merger or by any Collateral Document executed or required to be
executed in connection herewith or therewith.

         Transmittal  Documents  will have the  meaning  given to it in  Section
2.2(b).

         Underwriter  means  the lead  underwriters  and any  other  Person  who
executes the  Underwriting  Agreement as an  underwriter  of VIALOG Stock in the
Public Offering.

                                       62
<PAGE>

         Underwriting Agreement means the firm commitment underwriting agreement
between VIALOG and the Underwriter to be filed as an exhibit to the Registration
Statement and to be executed on or about the Effective Date.







                                       63
<PAGE>

         IN WITNESS WHEREOF,  VIALOG, VIALOG Merger Subsidiary,  the Company and
the Stockholders  have caused this Agreement to be executed as of the date first
written above by their respective officers thereunto duly authorized.

                                       VIALOG CORPORATION


                                       By: /s/ Glenn D. Bolduc
                                           ----------------------------
                                             Name: Glenn D. Bolduc
                                              Title:   President


                                       ABC ACQUISITION CORPORATION

                                       By: /s/ Glenn D. Bolduc
                                           ----------------------------
                                             Name:  Glenn D. Bolduc
                                             Title:    President


                                       A BUSINESS CONFERENCE
                                       CALL, INC.

                                       By: /s/ Robert M. Kalla
                                           ----------------------------
                                             Name:  Robert M. Kalla
                                             Title:    President


                                       PRINCIPAL STOCKHOLDER:

                                              /s/ Daniel L. Barber
                                           ----------------------------
                                       Name:  Daniel L. Barber

                                              /s/ Robert M. Kalla
                                           ----------------------------
                                       Name:  Robert M. Kalla
<PAGE>
         THE  FOLLOWING IS AN INDEX OF  INFORMATION  PROVIDED IN THE  DISCLOSURE
SCHEDULES AND EXHIBITS OF THE AGREEMENT AND PLAN OF  REORGANIZATION BY AND AMONG
VIALOG  CORPORATION,  ABC ACQUISITION  CORPORATION,  A BUSINESS CONFERENCE CALL,
INC. AND DANIEL l. BARBER AND ROBERT M. KALLA DATED AS OF MAY 23, 1998.  FURTHER
INFORMATION WILL BE FURNISHED UPON REQUEST.
<TABLE>
<S>                           <C>
Schedule 3.1(a)               Foreign Jurisdictions In Which Qualified To Do Business
Schedule 3.1(b)               Governmental Authorizations and Private Authorizations
Schedule 3.1(c)               Noncontravention
Schedule 3.2(a)               Financial and Other Information
Schedule 3.2(b)               Capital Stock or Equity in Another Entity
Schedule 3.3                  Changes in Condition
Schedule 3.4                  Liabilities
Schedule 3.5(a)               Title to Properties; Leases
Schedule 3.5(b)               Leased Property
Schedule 3.5(c)               Title to Properties
Schedule 3.6                  Compliance With Private Authorization
Schedule 3.7(a)               Compliance with Governmental Authorizations and Applicable Law
Schedule 3.7(b)               Governmental Authorizations Not Obtained
Schedule 3.8(a)               Intangible Assets and Governmental Authorizations Business is Dependent Upon
Schedule 3.8(b)               List of Governmental Authorizations and Intangible Assets
Schedule 3.9                  Related Transactions
Schedule 3.10(a)              Insurance
Schedule 3.11(a)              Tax Matters
Schedule 3.11(d)              Past or Pending Audits
Schedule 3.11(e)              Tax Agreements
Schedule 3.12(a)              Benefit Plans and Arrangements
Schedule 3.12(c)              Funding and Service Liability of Employment Arrangements
Schedule 3.15(a)              Authorized and Outstanding Capital Stock
Schedule 3.15(b)              Stock Ownership and Liens Thereto
Schedule 3.16(a)              Employment Arrangements
Schedule 3.16(b)              Employment Arrangements As Result of Agreement
Schedule 3.16(c)              Labor Conflicts
Schedule 3.17(a)              Material Agreements
Schedule 3.17(b)              Material Agreement Unable to Provide Operating Profit
Schedule 3.18                 Ordinary Course of Business Since December 31, 1997
Schedule 3.20                 Adverse Restrictions
Schedule 3.22                 Personal Injury or Property Damage; Warranty Claims; Etc.
Schedule 3.23(a)              Environmental Matters
Schedule 3.23(b)              Hazardous Spills/Placement
Schedule 3.23(c)              Above Ground or Under Ground Tanks
Schedule 3.23(e)              Hazardous Materials
Schedule 3.23(f)              Hazardous Materials and Transport Of
Schedule 3.23(g)              Environmental Investigations
Schedule 3.31                 Predecessor Status; Etc.
Schedule 4.2                  Liens to Title to Shares
Schedule 4.3                  No Conflict; Required Filings and Consents
Schedule 5.7                  Capitalization and Fraudulent Conveyance
Schedule 6.5(b)               Conduct of Business
Schedule 6.17                 Distributions; Liabilities; Etc.
Schedule 6.19                 Preliminary Reimbursement Amount and Initial Tax Gross-Up
Schedule 7.2(q)               Related Transactions Continuing After Effective Time
Schedule 7.2(t)               Individuals Executing Employment Arrangements
<PAGE>

Exhibit 1.3                   Form of Escrow Agreement
Exhibit 1.6                   Form of Articles of Incorporation of Surviving Corporation
Exhibit 1.7                   Form of By-Laws of Surviving Corporation
Exhibit 2.4                   Form of Incentive Stock Option Agreement
Exhibit 6.2(c)                Form of Key Employee Noncompetition and Confidentiality Agreement
Exhibit 7.2(b)                Form of Briggs and Morgan Legal Opion
Exhibit 7.2(n)                Form of Limited Release
Exhibit 7.2(s)                Form of Executive Employment Agreement
Exhibit 7.2(t)                Form of Employee Employment Agreement
Exhibit 7.3(b)                Form of Mirick, O'Connell, DeMallie & Lougee LLP Legal Opinion
</TABLE>


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