IPC INFORMATION SYSTEMS INC
8-K, 1997-12-24
TELEPHONE & TELEGRAPH APPARATUS
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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 EXCHANGE ACT OF 1934

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

       Date of report (Date of earliest event reported): December 18, 1997




                          IPC INFORMATION SYSTEMS, INC.
             (Exact name of registrant as specified in its charter)




        DELAWARE                  0-25492                     58-1636502
- ----------------------       -------------------       -----------------------
    (State or other           (Commission File              (IRS Employer   
    jurisdiction of               Number)                Identification No.)
     incorporation)



           WALL STREET PLAZA, 88 PINE STREET, NEW YORK, NEW YORK 10005
          (Address of principal executive offices, including zip code)



       Registrant's telephone number, including area code: (212) 825-9060




                                      NONE
          (Former name or former address, if changed since last report)




<PAGE>



ITEMS 1 THROUGH 4, 6, 8 & 9.        NOT APPLICABLE

ITEM 5.  OTHER EVENTS.

         On December 18, 1997, IPC Information Systems, Inc., a Delaware
corporation (the "Company"), entered into an Agreement and Plan of Merger (the
"Merger Agreement") by and between the Company and Arizona Acquisition Corp., a
Delaware corporation ("AAC"). The Merger Agreement provides, among other things,
that AAC will be merged with and into the Company, with the Company being the
surviving corporation (the "Merger"). The transaction is structured as a
leveraged recapitalization.

         In addition, AAC entered into a Stockholders Agreement, dated as of
December 18, 1997, with Richard P. Kleinknecht, Chairman of the Company, Peter
J. Kleinknecht, Vice Chairman of the Company, Russell G. Kleinknecht, Executive
Vice President of the Company, and other family members, pursuant to which these
individuals, subject to certain conditions, have agreed to vote in favor of the
transaction all of the 6,952,768 shares owned by them. The 6,952,768 shares
represent approximately 64.9% of the 10,715,119 shares of common stock
outstanding of the Company on December 17, 1997.

         In connection with the execution of the Merger Agreement, a number of
agreements, which are described below, were executed concurrently therewith and
each will become effective upon the consummation of the Merger.

         The Company, Cable Systems Holding, LLC, a Delaware limited liability
company and a shareholder of AAC, Richard P. Kleinknecht, David Walsh and
Anthony Servidio entered into an Investors Agreement, dated as of December 18,
1997, which will govern the parties' rights, duties and obligations, as the
principal shareholders of the surviving company, after the Merger.

         The Company, International Exchange Networks, Ltd., a Delaware
corporation and an 80%-owned subsidiary of the Company ("IXNET"), David Walsh
and Anthony Servidio entered into a Share Exchange and Termination Agreement,
dated as of December 18, 1997, pursuant to which Mr. Walsh and Mr. Servidio will
exchange 336 shares and 224 shares, respectively, of common stock, par value
$0.01 per share, of IXNET in exchange for 152,381 shares and 101,587 shares,
respectively, of common stock, par value $0.01 per share, of the Company
immediately following the closing of the Merger.

         In addition, the Company entered into an Amended and Restated Labor
Pool Agreement, dated as of December 18, 1997, with Kleinknecht Electric
Company, Inc. (NY) ("KEC-NY") and an Amended and Restated Labor Pool Agreement,
dated as of December 18, 1997, with Kleinknecht Electric Company, Inc. (NJ)
("KEC-NJ"), pursuant to which the Company agreed to continue to employ workers
represented by two labor unions on a pooled based, and under the terms of each
of KEC-NY's and KEC-NJ's respective collective bargaining agreements. KEC-NY,
KEC-NJ and the Company also entered into an Amended and Restated Corporate
Opportunity Agreement, dated as of December 18, 1997, pursuant to which KEC-NY
and KEC-NJ each agrees not to bid for or accept any job requiring the
performance of "Cabling Work" (as defined therein)


                                        2

<PAGE>



if the Company has notified in writing the applicable party to said agreement
that the Company intends to bid for such job. The agreement also provides that
the Company, in its sole discretion, may continue to refer to KEC-NY and KEC-NJ
opportunities which the Company may from time to time identify for electrical
contracting work related to Cabling Work bid on by the Company.

         Also in connection with the execution of the Merger Agreement, the
Company entered into with Richard P. Kleinknecht and Peter J. Kleinknecht, and
IXNET entered into with David Walsh and Anthony Servidio, Amended and Restated
Employment Agreements, each dated as of December 18, 1997. The agreement with
Richard P. Kleinknecht provides that he will serve as Vice Chairman of the
Company and, among other things, will receive stock options upon the closing of
the Merger. The agreement with Peter J. Kleinknecht provides that he will serve
as an employee of the Company and, among other things, will receive stock
options upon the closing of the Merger. The agreement with David Walsh provides,
among other things, that he will serve as Chief Executive Officer and Chairman
of the Board of Directors of IXNET. The agreement with Anthony Servidio
provides, among other things, that he will serve as Executive Vice President,
Sales, of IXNET.

         The Company issued a press release dated December 19, 1997 publicly
announcing the Merger and describing the transaction.

         The Company hereby incorporates by reference the Merger Agreement
attached hereto as Exhibit 2.1, the Stockholders Agreement attached hereto as
Exhibit 2.2, the Amended and Restated Employment Agreements with Richard P.
Kleinknecht and Peter J. Kleinknecht attached hereto as Exhibits 10.2.2 and
10.3.2, respectively, the Amended and Restated Labor Pool Agreements attached as
Exhibits 10.8.1 and 10.9.1, respectively, the Amended and Restated Corporate
Opportunity Agreement attached hereto as Exhibit 10.10.1, the Investors
Agreement attached hereto as Exhibit 10.15, the Share Exchange and Termination
Agreement attached hereto as Exhibit 10.16, the Amended and Restated Employment
Agreements with David Walsh and Anthony Servidio attached hereto as Exhibits
10.17 and 10.18, respectively, and the press release attached hereto as Exhibit
99, each made a part hereof, into this Item 5.

ITEM 7.  FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS.

         (a)      Financial statements of businesses acquired.

                  Not applicable.

         (b)      Pro forma financial information.

                  Not applicable.

         (c) Exhibits. The following Exhibits are filed as part of this report:


                                        3

<PAGE>





    EXHIBIT NO.                                  DESCRIPTION
    -----------                                  -----------

        2.1                 Agreement and Plan of Merger, dated as of
                            December 18, 1997, by and between IPC
                            Information Systems, Inc. and Arizona
                            Acquisition Corp.

        2.2                 Stockholders Agreement, dated as of
                            December 18, 1997 by and among Arizona
                            Acquisition Corp., Richard P. Kleinknecht,
                            Peter J. Kleinknecht, Russell G. Kleinknecht
                            and other stockholders signatory thereto.

       10.2.2               Amended and Restated Employment Agreement, dated as
                            of December 18, 1997, by and between Richard P.
                            Kleinknecht and IPC Information Systems, Inc.

       10.3.2               Amended and Restated Employment Agreement, dated as
                            of December 18, 1997, by and between Peter J.
                            Kleinknecht and IPC Information Systems, Inc.

       10.8.1               Amended and Restated Labor Pool Agreement, dated as
                            of December 18, 1997, by and between Kleinknecht
                            Electric Company, Inc. (NY) and IPC Information
                            Systems, Inc.

       10.9.1               Amended and Restated Labor Pool Agreement, dated as
                            of December 18, 1997, by and between Kleinknecht
                            Electric Company, Inc. (NJ) and IPC Information
                            Systems, Inc.

      10.10.1               Amended and Restated Corporate Opportunity
                            Agreement, dated as of December 18, 1997, by and
                            among Kleinknecht Electric Company, Inc. (NY),
                            Kleinknecht Electric Company, Inc. (NJ) and IPC
                            Information Systems, Inc.

       10.15                Investors Agreement, dated as of December 18, 1997,
                            by and among, IPC Information Systems, Inc., Cable
                            Systems Holding, LLC, Richard P. Kleinknecht, David
                            Walsh and Anthony Servidio.



                                        4

<PAGE>




       10.16                Share Exchange and Termination Agreement, dated as
                            of December 18, 1997, by and among, IPC Information
                            Systems, Inc., International Exchange Network Ltd.,
                            David Walsh and Anthony Servidio.

       10.17                Amended and Restated Employment
                            Agreement, dated as of December 18, 1997,
                            by and between David Walsh and
                            International Exchange Networks, Ltd.

       10.18                Amended and Restated Employment
                            Agreement, dated as of December 18, 1997,
                            by and between Anthony Servidio and
                            International Exchange Networks, Ltd.

         99                 Press Release issued on December 19, 1997.






                                        5

<PAGE>



                                   SIGNATURES

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 hereunto duly authorized.

                                        IPC INFORMATION SYSTEMS, INC.


                                        By:  /s/ Terry Clontz
                                           ------------------------------------
                                           Terry Clontz
                                           President and Chief Executive Officer


Dated: December 24, 1997



                                        6

<PAGE>



                                  EXHIBIT INDEX



          EXHIBIT                                DESCRIPTION
          -------                                -----------

            2.1             Agreement and Plan of Merger, dated as of
                            December 18, 1997, by and between IPC
                            Information Systems, Inc. and Arizona
                            Acquisition Corp.

            2.2             Stockholders Agreement, dated as of December 18,
                            1997, by and among Arizona Acquisition Corp.,
                            Richard P. Kleinknecht, Peter J. Kleinknecht,
                            Russell G. Kleinknecht and other stockholders
                            signatory thereto.

           10.2.2           Amended and Restated Employment Agreement, dated as
                            of December 18, 1997, by and between Richard P.
                            Kleinknecht and IPC Information Systems, Inc.

           10.3.2           Amended and Restated Employment Agreement, dated as
                            of December 18, 1997, by and between Peter J.
                            Kleinknecht and IPC Information Systems, Inc.

           10.8.1           Amended and Restated Labor Pool Agreement, dated as
                            of December 18, 1997, by and between Kleinknecht
                            Electric Company, Inc. (NY) and IPC Information
                            Systems, Inc.

           10.9.1           Amended and Restated Labor Pool Agreement, dated as
                            of December 18, 1997, by and between Kleinknecht
                            Electric Company, Inc. (NJ) and IPC Information
                            Systems, Inc.

          10.10.1           Amended and Restated Corporate
                            Opportunity Agreement, dated as of
                            December 18, 1997, by and among
                            Kleinknecht Electric Company, Inc. (NY),
                            Kleinknecht Electric Company, Inc. (NJ)
                            and IPC Information Systems, Inc.



                                        7

<PAGE>



           10.15            Investors Agreement, dated as of December
                            18, 1997, by and among, IPC Information
                            Systems, Inc., Cable Systems Holding,
                            LLC, Richard P. Kleinknecht, David Walsh
                            and Anthony Servidio.

           10.16            Share Exchange and Termination Agreement, dated as
                            of December 18, 1997, by and among, IPC Information
                            Systems, Inc., International Exchange Network Ltd.,
                            David Walsh and Anthony Servidio.

           10.17            Amended and Restated Employment
                            Agreement, dated as of December 18, 1997,
                            by and between David Walsh and
                            International Exchange Networks, Ltd.

           10.18            Amended and Restated Employment
                            Agreement, dated as of December 18, 1997,
                            by and between Anthony Servidio and
                            International Exchange Networks, Ltd.

             99             Press Release issued on December 19, 1997.




                                        8


                                                                  EXECUTION COPY




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


                          AGREEMENT AND PLAN OF MERGER


                                     BETWEEN


                            ARIZONA ACQUISITION CORP.


                                       AND


                          IPC INFORMATION SYSTEMS, INC.


                                December 18, 1997


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





 

<PAGE>


                                    CONTENTS
                                    --------
                                   (Continued)


                                    CONTENTS

                                                                          PAGE
                                                                          ----

1.       Definitions.......................................................1

2.       Basic Transaction................................................10
         (a)      The Merger..............................................10
         (b)      The Closing.............................................10
         (c)      Actions at the Closing..................................11
         (d)      Effect of Merger........................................11
         (e)      Elections...............................................13
         (f)      Proration...............................................14
         (g)      Procedure for Payment...................................15
         (h)      Dissenting Shares.......................................17
         (i)      Fractional Shares.......................................18
         (j)      Closing of Transfer Records.............................18

3.       Representations and Warranties of the Company....................18
         (a)      Organization, Qualification, and Corporate Power........18
         (b)      Capitalization..........................................19
         (c)      Authorization of Transaction............................19
         (d)      Noncontravention........................................20
         (e)      Filings with the SEC....................................20
         (f)      Financial Statements....................................20
         (g)      [Intentionally left blank.].............................20
         (h)      Undisclosed Liabilities.................................20
         (i)      Brokers' Fees...........................................21
         (j)      Absence of Certain Changes..............................21
         (k)      Litigation..............................................22
         (l)      Taxes...................................................22
         (m)      Compliance with Laws....................................23
         (n)      Permits.................................................23
         (o)      Contracts...............................................23
         (p)      Intellectual Property Rights............................24
         (q)      Board Approval; Fairness Opinion........................25
         (r)      ERISA...................................................25
         (s)      Labor and Employment Matters............................26
         (t)      Real Estate.............................................27
         (u)      Environmental Matters...................................27

4.       Representations and Warranties of AAC............................28
         (a)      Organization............................................28
         (b)      Financing...............................................28
         (c)      Authorization of Transaction............................29

 
                                       (i)

<PAGE>


                                    CONTENTS
                                   (Continued)

                                                                         PAGE
                                                                         ----

         (d)      Noncontravention........................................29
         (e)      Brokers' Fees...........................................30
         (f)      Capitalization..........................................30

5.       Covenants........................................................30
         (a)      General.................................................30
         (b)      Notices and Consents....................................30
         (c)      Regulatory Matters and Approvals........................30
         (d)      Financing...............................................32
         (e)      Accounting Treatment....................................32
         (f)      Cooperation.............................................32
         (g)      Operation of the Company's Business.....................33
         (h)      Full Access.............................................34
         (i)      Notice of Developments..................................34
         (j)      No Solicitation.........................................34
         (k)      Insurance and Indemnification...........................35
         (l)      Employees...............................................36
         (m)      Disclosure..............................................37
         (n)      Comfort Letters.........................................37
         (o)      Affiliate Letters.......................................37
         (p)      Continued Registration..................................38
         (q)      Operation of AAC's Business.............................38
         (r)      No Amendment of Ancillary Agreements....................38
         (s)      Solvency Opinion........................................38

6.       Conditions to Obligation to Close................................38
         (a)      Conditions to Obligation of AAC.........................38
         (b)      Conditions to Obligation of the Company.................40

7.       Termination......................................................41
         (a)      Termination of Agreement................................41
         (b)      Effect of Termination...................................42
         (c)      Termination Fee; Expenses...............................42

8.       Miscellaneous....................................................42
         (a)      Survival................................................42
         (b)      Press Releases and Public Announcements.................43
         (c)      No Third Party Beneficiaries............................43
         (d)      Entire Agreement........................................43
         (e)      Succession and Assignment...............................43
         (f)      Counterparts............................................43

 
                                      (ii)

<PAGE>


                                    CONTENTS
                                   (Continued)

                                                                         PAGE
                                                                         ----

         (g)      General Interpretive Principles.........................43
         (h)      Notices.................................................44
         (i)      Governing Law; Forum Selection; and
                  Waiver of Jury Trial....................................45
         (j)      Amendments and Waivers..................................46
         (k)      Severability............................................47
         (l)      Expenses................................................47
         (m)      Incorporation of Exhibits, Schedule
                  and Disclosure Schedules................................47
         (n)      Transfer Taxes..........................................47
         (o)      Limited Recourse........................................47

Company Disclosure Schedule
AAC Disclosure Schedule
Schedule A                  List of Directors of the Surviving Corporation
Exhibit A-1                 Amended and Restated Certificate of Incorporation
Exhibit A-2                 Restated Certificate of Incorporation
Exhibit B                   Bylaws
Exhibit C                   Stock Option Plan
Exhibit D                   Affiliate Letters


 
                                      (iii)

<PAGE>



                          AGREEMENT AND PLAN OF MERGER

         Agreement and Plan of Merger (the "Agreement") entered into as of
December 18, 1997, by and between Arizona Acquisition Corp., a Delaware
corporation ("AAC"), and IPC Information Systems, Inc., a Delaware corporation
(the "Company"). AAC and the Company are referred to collectively herein as the
"Parties."

         This Agreement contemplates the merger of AAC with and into the
Company.

         Concurrently with the execution of this Agreement, and as an inducement
to AAC and the Company to enter into this Agreement, (i) AAC and certain
principal stockholders of the Company have entered into the Stockholders
Agreement pursuant to which such stockholders have agreed, among other things,
not to sell, transfer, pledge, assign or otherwise dispose of any shares of
Company Common Stock owned or held by them, or enter into any agreement to
accomplish any of the foregoing prior to the Closing, with certain exceptions
and (ii) one or more of the parties thereto and/or others have entered into the
other Ancillary Agreements.

         It is intended that the Merger be recorded as a recapitalization for
financial reporting purposes, and both Parties, after discussion with their
auditors, believe that the Merger is eligible for such accounting treatment.

         It is intended that the Merger constitute a tax-free reorganization
within the meaning of Section 368(a)(1)(E) of the Code.

         Now, therefore, in consideration of the premises and the mutual
promises herein made, and in consideration of the representations, warranties,
and covenants herein contained, the Parties agree as follows.

         1.       DEFINITIONS.
                  ------------

         "AAC" has the meaning set forth in the preface above.

         "AAC Disclosure Schedule" has the meaning set forth in ss.4.

         "AAC-owned Share" means any Company Common Stock that AAC beneficially
owns.

         "AAC Comfort Letter" has the meaning set forth in ss.5(n).

         "AAC Common Stock" has the meaning set forth in ss.4(f).

         "AAC Shareholder Agreement" means the AAC Shareholder Agreement, dated
as of the date hereof between CSH LLC, as shareholder of AAC, and the Company.

         "Acquisition Proposal" has the meaning set forth in ss.5(j).


 
                                        1

<PAGE>



         "Acquisition Transaction" has the meaning set forth in ss.5(j).

         "Affiliate" has the meaning set forth in Rule 12b-2 of the regulations
promulgated under the Securities Exchange Act.

         "Agent" has the meaning set forth in ss.8(i).

         "Agreement" has the meaning set forth in the preface above.

   
         "Ancillary Agreements" means the Stockholders Agreement, the Investors
Agreement, the Share Exchange and Termination Agreement, the Starr Termination
Agreement, the Walsh Employment Agreement, the Servidio Employment Agreement,
the KEC-NY Labor Pool Agreement, the KEC-NJ Labor Pool Agreement, the Corporate
Opportunity Agreement, the Richard P. Kleinknecht Employment Agreement, the
Peter J. Kleinknecht Employment Agreement and the AAC Shareholder Agreement.
    

         "Benefit Plan" means any Plan, other than a Multiemployer Plan,
existing at the Closing Date or prior thereto, established or to which
contributions have at any time been made by the Company or any Subsidiary, or
any predecessor of the Company or any Subsidiary, under which any employee,
former employee or director of the Company or any Subsidiary, or any beneficiary
thereof is covered, is eligible for coverage or has benefit rights in respect of
service to the Company or any Subsidiary.

         "Business Day" means any day on which the principal offices of the SEC
in Washington, D.C., are open to accept filings or, in the case of determining a
date when any payment is due, any day other than a day on which banks in New
York, New York, are required or authorized to be closed.

         "Capital Lease" means a lease with respect to which the lessee is
required concurrently to recognize the acquisition of an asset and the
incurrence of a liability in accordance with GAAP.

         "Capital Lease Obligation" means, with respect to any Person and a
Capital Lease, the amount of the obligation of such Person as the lessee under
such Capital Lease which would, in accordance with GAAP, appear as a liability
on a balance sheet of such Person.

         "Cash Electing Shares" has the meaning set forth in ss.2(d)(viii).

         "Cash Election Price" has the meaning set forth in ss.2(d)(viii).

         "Cash Proration Factor" has the meaning set forth in ss.2(f)(iii).

         "Certificate of Merger" has the meaning set forth in ss.2(c).

         "Closing" has the meaning set forth in ss.2(b).

         "Closing Date" has the meaning set forth in ss.2(b).

 
                                        2

<PAGE>




         "Code" means the Internal Revenue Code of 1986, as amended.

         "Company" has the meaning set forth in the preface above.

         "Company Comfort Letter" has the meaning set forth in ss.5(n).

         "Company Common Stock" means any share of the common stock, $0.01 par
value per share, of the Company.

         "Company Disclosure Schedule" has the meaning set forth in ss.3.

         "Company Stockholder" means any Person who or which holds any shares of
Company Common Stock.

         "Confidential Information" means any information concerning the
businesses and affairs of the Company and its Subsidiaries that is not already
generally available to the public or is otherwise required to be disclosed by
law or court order.

         "Confidentiality/Standstill Letter Agreement" means the
confidentiality/standstill letter agreement, dated as of November 13, 1997,
between AAC and the Company.

         "Contracts" means, with respect to any Person, any agreement, contract,
obligation, note, bond, mortgage, indenture, option, Lease, promise or
undertaking that is legally binding on such Person or to which such Person is a
party.

         "Corporate Opportunity Agreement" means the Amended and Restated
Corporate Opportunity Agreement dated as of the date hereof, among the Company,
KEC-NY and KEC-NJ.

         "CSH LLC" means Cable Systems Holdings, LLC, a Delaware limited
liability company.

         "CSI" means Cable Systems International, Inc., a Delaware corporation.

         "CVC" means Citicorp Venture Capital, Ltd., a New York corporation.

         "Debt" with respect to any Person means, at any time, without 
duplication,

                  (a) its liabilities for borrowed money and its redemption
        obligations in respect of mandatorily redeemable preferred stock;

                  (b) its liabilities for the deferred purchase price of
         property acquired by such Person (excluding accounts payable arising in
         the Ordinary Course of Business but including all liabilities created
         or arising under any conditional sale or other title retention
         agreement with respect to any such property);


 
                                        3

<PAGE>



                  (c)      all Capital Lease Obligations of such Person;

                  (d) all liabilities for borrowed money secured by any Lien
         with respect to any property owned by such Person (whether or not such
         Person has assumed or otherwise become liable for such liabilities);

                  (e) all its liabilities in respect of letters of credit or
         instruments serving a similar function issued or accepted for its
         account by banks and other financial institutions (whether or not
         representing obligations for borrowed money);

                  (f)      Swap Obligations of such Person; and

                  (g) any Guaranty of such Person with respect to liabilities of
         a type described in any of clauses (a) through (f) hereof.

         "Debt Financing Commitments" has the meaning set forth in ss.4(b).

         "Definitive Proxy Materials" means the definitive proxy materials
relating to the Special Meeting.

         "Delaware General Corporation Law" means the General Corporation Law of
the State of Delaware, as amended.

         "Dissenting Shares" has the meaning set forth in ss.2(h).

         "Election Date" has the meaning set forth in ss.2(e)(i).

         "Effective Time" has the meaning set forth in ss.2(d)(i).

         "Environmental Law" means any and all current federal, state, local,
foreign and provincial statutes, ordinances, rules and regulations relating to
the protection of the environment, and/or governing the generation, treatment,
storage, transportation, disposal, manufacture, or release of Hazardous
Materials, and any common law doctrine, including but not limited to,
negligence, nuisance, trespass, personal injury, or property damage related to,
or arising out of, the presence, release, or exposure to a Hazardous Material.

         "Equity Financing Commitment" has the meaning set forth in ss.4(b).

         "ERISA" means the Employee Retirement Income Security Act of 1974, as
amended, and the rules and regulations promulgated thereunder.

         "ERISA Affiliate" means any Person who is, or was, a member of a
controlled group (within the meaning of Section 412(n)(6) of the Code) that
includes, or at any time included, the Company or any Subsidiary, or any
predecessor of any of the foregoing.


 
                                        4

<PAGE>



         "Exchange Agent" has the meaning set forth in ss.2(e)(ii).

         "Exchange Fund" has the meaning set forth in ss.2(g).

         "Form of Election" has the meaning set forth in ss.2(e)(iii).

         "GAAP" means United States generally accepted accounting principles as
in effect from time to time consistently applied.

         "Governmental Body" means any government or political subdivision
thereof, whether foreign or domestic, federal, state, provincial, county, local,
municipal or regional, or any other governmental entity, any agency, authority,
department, division or instrumentality of any such government, political
subdivision, or other governmental entity, any court, arbitral tribunal or
arbitrator, and any non-governmental regulating body, to the extent that the
rules, regulations or orders of such body have the force of law.

         "Guaranties" by any Person means all obligations (other than
endorsements in the Ordinary Course of Business of negotiable instruments for
deposit or collection) of such Person guaranteeing, or in effect guaranteeing,
any Debt, cash dividend or other monetary obligation of any other Person (the
"primary obligor") in any manner, whether directly or indirectly, including,
without limitation, all obligations incurred through an agreement, contingent or
otherwise, by such Person: (i) to purchase such Debt or obligation or any
property or assets constituting security therefor; (ii) to advance or supply
funds for the purchase or payment of such Debt or obligation; (iii) to lease
property or to purchase securities or other property or services primarily for
the purpose of assuring the owner of such Debt or obligation of the ability of
the primary obligor to make payment of the Debt or obligation; or (iv) otherwise
to assure the owner of the Debt or obligation of the primary obligor against
loss in respect thereof. For the purposes of all computations made under this
Agreement, a Guaranty in respect of any Debt for borrowed money shall be deemed
to be Debt equal to the principal amount of such Debt for borrowed money which
has been guaranteed, and a Guaranty in respect of any other obligation or
liability or any dividend shall be deemed to be Debt equal to the maximum
aggregate amount of such obligation, liability or dividend unless such Guaranty
is limited.

         "Hart-Scott-Rodino Act" means the Hart-Scott-Rodino Antitrust 
Improvements Act of 1976, as amended.

         "Hazardous Material" means any materials, substances or wastes defined
as or included in the definition of "hazardous substances," "hazardous
materials," "hazardous wastes," "extremely hazardous wastes," "restricted
hazardous wastes," "toxic substances," "toxic pollutants," "pollutants,"
"regulated substances," or "contaminants" or words of similar import, under any
Environmental Law.

         "Intellectual Property" shall mean all trademarks and trademark rights,
trade names and trade name rights, service marks and service mark rights,
service names and service name rights, copyrights and copyright rights, patents
and patent rights, brand names, trade dress, business and

 
                                        5

<PAGE>



product names, logos, slogans, trade secrets, inventions, processes, formulae,
industrial models, processes, designs, specifications, data, technology,
methodologies, computer programs (including all source codes), confidential and
proprietary information, whether or not subject to statutory registration, and
all related technical information, manufacturing, engineering and technical
drawings, know-how and all pending applications for and registrations of
patents, trademarks, service marks and copyrights, and the right to sue for past
infringement, if any, in connection with any of the foregoing, and all
documents, disks and other media on which any of the foregoing is stored.

         "Investors Agreement" means the Investors Agreement, dated as of the
date hereof, by and among the Company, CSH LLC, CSI and certain other persons
named therein.

         "IXNET" means International Exchange Networks, Ltd., a Delaware 
corporation.

         "Joint Disclosure Document" means the disclosure document combining the
Prospectus and the Definitive Proxy Materials.

         "KEC-NJ" means Kleinknecht Electric Company, Inc., a New Jersey 
corporation.

         "KEC-NJ Labor Pool Agreement" means the Amended and Restated Labor Pool
Agreement, dated as of the date hereof, between KEC-NJ and the Company.

         "KEC-NY" means Kleinknecht Electric Company, Inc., a New York 
corporation.

         "KEC-NY Labor Pool Agreement" means the Amended and Restated Labor Pool
Agreement, dated as of the date hereof, between KEC-NY and the Company.

         "Kleinknechts" means Richard P. Kleinknecht and Peter J. Kleinknecht.

         "Knowledge" means actual or constructive knowledge without independent
investigation of any current director or current executive officer.

         "Lease" means any lease of real property made under which the Company
or a Subsidiary thereof is a tenant.

         "Lien" means any lien, claim, restriction, security interest,
preemptive right, covenant, easement, mortgage, other encumbrance or any claim
of any third party other than (a) mechanic's, materialman's, and similar liens,
(b) liens for taxes not yet due and payable or for taxes that the taxpayer is
contesting in good faith through appropriate proceedings, (c) purchase money
liens and liens securing rental payments under capital lease arrangements, and
(d) other liens arising in the Ordinary Course of Business and not incurred in
connection with the borrowing of money.

         "Material Adverse Effect" means any material adverse effect on the
financial condition or operations, business, assets, or results of operations of
the Company and its Subsidiaries taken as

 
                                        6

<PAGE>



a whole, or AAC, as the context in this Agreement requires, but excluding any
change resulting from general industry or economic conditions.

         "Maximum Stock Election Number" has the meaning set forth in 
         ss.2(f)(i).

         "Merger" has the meaning set forth in ss.2(a).

         "Merger Consideration" has the meaning set forth in ss.2(d)(viii).

         "Minimum Stock Election Number" has the meaning set forth in 
ss.2(f)(i).

         "Most Recent Fiscal Year End" has the meaning set forth in ss.3(f).

         "MSCI" has the meaning set forth in ss.4(b).

         "Multiemployer Plan" means a multiemployer plan within the meaning of
Section 4001(a)(3) of ERISA with respect to which the Company or any ERISA
Affiliate has an obligation to contribute or has or could have withdrawal
liability under ss.4201 of ERISA.

         "Non-Stock Electing Shares" has the meaning set forth in ss.2(f)(iii).

         "Ordinary Course of Business" means the ordinary course of business
consistent with past custom and practice (including with respect to quantity and
frequency).

         "Owned Real Property" has the meaning set forth in ss.3(t).

         "Party" has the meaning set forth in the preface above.

         "Permits" means each material license (other than with respect to
Intellectual Property), franchise, permit, certificate, approval, consent or
other similar authorization affecting, or relating in any way to, the assets or
business of the Company and its Subsidiaries.

         "Person" means an individual, a partnership, a limited liability
company, a corporation, an association, a joint stock company, a trust, an
estate, a joint venture, an unincorporated organization, or other entity or a
Governmental Body.

         "Peter J. Kleinknecht Employment Agreement" means the Amended and
Restated Employment Agreement dated as of the date hereof between the Company
and Peter J.
Kleinknecht.

         "Plan" means any bonus, incentive compensation, deferred compensation,
pension, profit sharing, retirement, stock purchase, stock option, stock
ownership, stock appreciation rights, phantom stock, leave of absence, layoff,
vacation, day or dependent care, legal services, cafeteria, life, health,
accident, disability, workmen's compensation or other insurance, severance,
separation or other employee benefit plan, practice, policy or arrangement of
any kind, whether

 
                                        7

<PAGE>



written or oral, or whether for the benefit of a single individual or more than
one individual including, but not limited to, without limitation, any "employee
benefit plan" within the meaning of Section 3(3) of ERISA (whether or not
subject thereto).

         "Predecessor Site" means any of the real properties of any predecessors
of the Company or any Subsidiary thereof or any entities previously owned by the
Company or any Subsidiary thereof.

         "Preliminary Proxy Materials" has the meaning set forth in ss.5(c)(i).

         "Prospectus" means the final prospectus relating to the registration of
the Surviving Corporation Common Stock under the Securities Act.

         "Proceeding" has the meaning set forth in ss.8(i).

         "Public Reports" has the meaning set forth in ss.3(e).

         "Registration Statement" has the meaning set forth in ss.5(c)(i).

         "Requisite Stockholder Approval" means the affirmative vote of at least
a majority of the shares of Company Common Stock, but less than 80% of the
shares of the Company Common Stock, in favor of this Agreement and the Merger in
accordance with the Delaware General Corporation Law.

         "Requisite Super-Majority Stockholder Approval" means the affirmative
vote of at least 80% of the shares of Company Common Stock in favor of the
Merger and this Agreement in accordance with Delaware General Corporation Law.

         "Richard P. Kleinknecht Employment Agreement" means the Amended and
Restated Employment Agreement dated as of the date hereof between the Company
and Richard P.
Kleinknecht.

         "Schedule 13E-3" has the meaning set forth in ss.5(c)(i).

         "SEC" means the Securities and Exchange Commission.

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

         "Securities Exchange Act" means the Securities Exchange Act of 1934, as
 amended.

         "Servidio" means Anthony Servidio.

         "Servidio Employment Agreement" means the Amended and Restated
Employment Agreement, dated as of the date hereof, between Servidio and IXNET.


 
                                        8

<PAGE>



         "Share Exchange and Termination Agreement" means the Share Exchange and
Termination Agreement, dated as of the date hereof, among Walsh, Servidio, IXNET
and the Company.

         "Site" means any of the real properties currently or previously owned,
leased or operated by the Company or any Subsidiary thereof, including all soil,
subsoil, surface waters and groundwater thereat.

         "Solvency Opinion" means the opinion from an independent advisor
confirming that, upon the consummation of the transactions contemplated hereby,
the Surviving Corporation (on a consolidated basis) (i) will not be insolvent,
(ii) will not be left with unreasonably small capital, (iii) will not have
incurred debts beyond its ability to pay such debts as they mature, and (iv)
will have a fair value and present fair salable value of its assets in excess of
its stated liabilities and identified contingent liabilities by at least the
total par value of its capital stock.

         "Special Meeting" has the meaning set forth in ss.5(c)(ii).

         "Starrs" mean Gerald and Robert Starr.

         "Starr Termination Agreement" means the Termination Agreement, dated as
of the date hereof, among the Starrs and the Company.

         "Stock Electing Shares" has the meaning set forth in ss.2(d)(viii).

         "Stock Election" has the meaning set forth in ss.2(e)(i).

         "Stock Election Price" has the meaning set forth in ss.2(d)(viii).

         "Stock Proration Factor" has the meaning set forth in ss.2(f)(ii).

         "Stockholders Agreement" means the Stockholders Agreement, dated as of
the date hereof, by and among, inter alia, the Kleinknechts, AAC and Russell G.
Kleinknecht.

         "Subsidiary" means any corporation with respect to which a specified
Person (or a Subsidiary thereof) owns a majority of the common stock or has the
power to vote or direct the voting of sufficient securities to elect a majority
of the directors.

         "Superior Acquisition Proposal" has the meaning set forth in 
ss.7(a)(iv).

         "Surviving Corporation" has the meaning set forth in ss.2(a).

         "Surviving Corporation Common Stock" has the meaning set forth in
ss.2(d)(vi).

         "Swap Obligations" means, with respect to any Person, payment
obligations with respect to interest rate swaps, currency swaps and similar
obligations obligating such Person to make payments, whether periodically or
upon the happening of a contingency. For the purposes of this

 
                                        9

<PAGE>



Agreement, the amount of any Swap Obligation shall be the amount determined in
respect thereof as of the end of the then most recently ended fiscal quarter of
such Person, based on the assumption that such Swap Obligation had terminated at
the end of such fiscal quarter, and, in making such determination, if any
agreement relating to such Swap Obligation provides for the netting of amounts
payable by and to such Person thereunder or if any such agreement provides for
the simultaneous payment of amounts by and to such Person, then, in each such
case, the amount of such obligation shall be the net amount so determined.

         "Taxes" means all federal, state, local and foreign income, profits,
franchise, gross receipts, environmental, customs duty, capital stock,
severance, stamp, payroll, sales, employment, unemployment, disability, use,
property, withholding, excise, production, value added, occupancy and other
taxes, duties or assessments of any nature whatsoever together with all
interest, penalties, fines and additions to tax imposed with respect to such
amounts and any interest in respect of such penalties and additions to tax.

         "Tax Returns" means all returns and reports (including elections,
claims, declarations, disclosures, schedules, estimates, computations and
information returns) required to be supplied to a Tax authority in any
jurisdiction relating to Taxes.

         "Termination Fee" has the meaning set forth in ss.7(c).

         "Third Party" means any "group," as described in Rule 13d-5(b)
promulgated under the Securities Exchange Act, or Person, other than AAC or any
of its Affiliates.

         "Walsh" means David Walsh.

         "Walsh Employment Agreement" means the Amended and Restated Employment
Agreement, dated as of the date hereof, between Walsh and IXNET.

         2.       BASIC TRANSACTION.

         (a) THE MERGER. Subject to the terms and conditions of this Agreement
and in accordance with the Delaware General Corporation Law, AAC will merge with
and into the Company (the "Merger") at the Effective Time. Upon the Effective
Time, the separate existence of AAC shall cease and the Company shall be the
corporation surviving the Merger and shall continue under the name IPC
Information Systems, Inc. (the "Surviving Corporation").

         (b) THE CLOSING. The closing of the transactions contemplated by this
Agreement (the "Closing") shall take place at the offices of Morgan, Lewis &
Bockius LLP in New York City commencing at 9:00 a.m., local time, on the second
Business Day following the satisfaction or waiver of all conditions to the
obligations of the Parties to consummate the transactions contemplated hereby
(other than conditions with respect to actions the respective Parties will take
at the Closing itself) or such other date as the Parties may mutually determine
(the "Closing Date").


 
                                       10

<PAGE>



         (c) ACTIONS AT THE CLOSING. On the day of the Closing (which Closing
satisfies the requirements of ss.2(b)), immediately following the satisfaction
or waiver of the conditions to the obligations of the Parties to consummate the
transactions contemplated hereby, (i) the Company will file with the Secretary
of State of the State of Delaware a Certificate of Merger (the "Certificate of
Merger"), and (ii) AAC will cause the Exchange Fund to be delivered to the
Exchange Agent in the manner provided below in this ss.2.

         (d)      EFFECT OF MERGER.

                  (i) GENERAL. The Merger shall become effective at the time
(the "Effective Time") the Company duly files the Certificate of Merger with the
Secretary of State of the State of Delaware or at such later time as is
specified in the Certificate of Merger. The Merger shall have the effect set
forth in the Delaware General Corporation Law. The Surviving Corporation may, at
any time after the Effective Time, take any action (including executing and
delivering any document) in the name and on behalf of either the Company or AAC
in order to carry out and effectuate the transactions contemplated by this
Agreement.

                  (ii) CERTIFICATE OF INCORPORATION. At the Effective Time, and
without any further action on the part of the Company or AAC, the certificate of
incorporation of the Company in effect immediately prior to the Effective Time
shall be amended as of the Effective Time, (i) in the event that the Requisite
Super-Majority Stockholder Approval is obtained, to read as set forth in Exhibit
A-1, or (ii) in the event that the Requisite Stockholder Approval is obtained,
to read as set forth in the Exhibit A-2, and as so amended shall be the
certificate of incorporation of the Surviving Corporation until thereafter
amended in accordance with applicable law.

                  (iii) BYLAWS. At the Effective Time and without any further
action on the part of the Company or AAC, the bylaws of the Company, as amended
and restated, a copy of which is set forth as Exhibit B, and in effect
immediately prior to the Effective Time, shall be the bylaws of the Surviving
Corporation, until amended in accordance with applicable law.

                  (iv) (A) DIRECTORS. (1) Subject to applicable law, in the
event that the Requisite Super-Majority Stockholder Approval is obtained, the
directors of the Surviving Corporation at the Effective Time shall be the
directors as set forth on Schedule A hereto; provided, that in the event any
such director is unable, or becomes unable to serve, a replacement director
shall be designated by AAC.

                  (2)      In the event that the Requisite Stockholder Approval
 is obtained:

                           (a) Subject to applicable law, (i) the vacancies on
                  the board of directors of the Company created by the
                  resignations of directors at the Closing and (ii) the
                  vacancies created by an increase in the size of the board of
                  directors of the Company from six to nine in accordance with
                  the bylaws of the Surviving Corporation, in each case, shall
                  be filled by the individuals set forth on Schedule A hereto;
                  provided, that in the event any such individual is unable, or
                  becomes unable to serve, a replacement director shall be
                  designated by AAC.

 
                                       11

<PAGE>



                           (b) AAC will supply to the Surviving Corporation in
                  writing and be solely responsible for any information provided
                  by AAC with respect to itself and its nominees, officers,
                  directors and Affiliates required by Section 14(f) of the
                  Securities Exchange Act and Rule 14f-1 promulgated thereunder.

                  (B) OFFICERS. Subject to applicable law and the provisions of
         applicable Ancillary Agreements, the officers of the Surviving
         Corporation at the Effective Time shall be the officers of the Company
         immediately prior to the Effective Time.

                  (v) TREASURY STOCK AND AAC-OWNED SHARES. At and as of the
Effective Time, by virtue of the Merger and without any action on the part of
the Company or AAC or any holder of shares of Company Common Stock or AAC Common
Stock, each share of Company Common Stock owned by the Company or any subsidiary
as treasury stock and each AAC-owned Share held immediately prior to the
Effective Time shall be canceled and cease to exist, and no consideration shall
be delivered or deliverable with respect thereto.

                  (vi) CONVERSION OF AAC COMMON STOCK. At and as of the
Effective Time, by virtue of the Merger and without any action on the part of
the Company or AAC or any holder of shares of Company Common Stock or AAC Common
Stock, each share of AAC Common Stock shall be converted into one share of
common stock, $0.01 par value per share, of the Surviving Corporation (the
"Surviving Corporation Common Stock").

                  (vii) COMPANY STOCK OPTIONS. Each option to purchase shares of
Company Common Stock that is outstanding immediately prior to the Effective Time
(whether or not vested or exercisable) shall, at the Effective Time, be
cancelled, and in exchange therefor, each option holder shall receive a cash
payment which, prior to deduction for applicable withholding taxes, is in an
amount equal to the product of (A) the excess, if any, of the Cash Election
Price over the per share exercise price of the option and (B) the number of
shares subject to the option (whether or not vested). AAC shall make such
payment on or after the Closing Date immediately upon receipt of a written
agreement from the option holder to accept such payment in full settlement of
such option holder's rights with respect to the option. If the per share
exercise price of any option equals or exceeds the Cash Election Price, such
option shall be cancelled without any payment required thereunder.

                  (viii) CONVERSION OPTION (OR RETENTION) OF COMPANY COMMON
STOCK. At and as of the Effective Time, by virtue of the Merger and without any
action on the part of the Company or AAC or any holder of shares of Company
Common Stock or AAC Common Stock, each share of Company Common Stock outstanding
immediately prior to the Effective Time shall, except as otherwise provided in
ss.2(d)(v)-(vii) or as provided in ss.2(h) with respect to Dissenting Shares as
to which appraisal rights have been exercised, be converted into the following
(the "Merger Consideration"), subject to ss.2(f):

                           (A) for each such share with respect to which an
         election to retain Surviving Corporation Common Stock has been
         effectively made and not revoked or lost

 
                                       12

<PAGE>



         pursuant to ss. 2(e)(iii), (iv) and (v) (the "Stock Electing Shares"),
         the right to retain one share of Surviving Corporation Common Stock
         (the "Stock Election Price"); and

                           (B) for each such share ("Cash Electing Shares")
         (other than Stock Electing Shares), the right to receive in cash from
         the Surviving Corporation following the Merger an amount equal to $21
         (the "Cash Election Price").

         (e)      ELECTIONS.
                  ----------

                  (i) Each Person who, on or prior to the Business Day next
preceding the date of the Special Meeting (the "Election Date"), is a record
holder of shares of Company Common Stock will be entitled, with respect to such
shares, to make an unconditional election on or prior to such Election Date to
retain the Stock Election Price (a "Stock Election") on the basis hereinafter
set forth.

                  (ii) Prior to the mailing of the Joint Disclosure Document,
the Company shall appoint an agent reasonably acceptable to AAC (the "Exchange
Agent") for the purpose of exchanging certificates representing shares of
Company Common Stock for the Merger Consideration.

                  (iii) The Company shall prepare and mail a form of election,
which form shall be subject to the reasonable approval of AAC (the "Form of
Election"), with the Joint Disclosure Document to the record holders of shares
of Company Common Stock as of the record date for the Special Meeting, which
Form of Election shall be used by each record holder of shares who makes a Stock
Election with respect to any or all such holder's shares. The Company will use
its reasonable best efforts to make the Form of Election and the Joint
Disclosure Document available to all persons who become holders of shares during
the period between such record date and the Election Date. Any such holder's
Stock Election shall have been properly made only if the Exchange Agent shall
have received at its designated office, by 5:00 p.m., New York City time on the
Election Date, a Form of Election properly completed and signed and accompanied
by certificates for the shares of Company Common Stock to which such Form of
Election relates, duly endorsed in blank or otherwise in form acceptable for
transfer on the books of the Company (or by an appropriate guarantee of delivery
of such certificates as set forth in such Form of Election from a firm which is
a member of a registered national securities exchange or of the National
Association of Securities Dealers, Inc. or a commercial bank or trust company
having an office or correspondent in the United States, provided such
certificates are in fact delivered to the Exchange Agent within five New York
Stock Exchange trading days after the date of execution of such guarantee of
delivery).

                  (iv) Any Form of Election may be revoked by the holder
submitting it to the Exchange Agent only by written notice received by the
Exchange Agent (i) prior to 5:00 p.m., New York City time, on the Election Date
or (ii) after the Election Date, if (and to the extent that) the Exchange Agent
is legally required to permit revocations, and the Effective Time shall not have
occurred prior to such date. In addition, all Forms of Election shall
automatically be revoked if the Exchange Agent is notified in writing by AAC or
the Company that the Merger has been

 
                                       13

<PAGE>



abandoned or this Agreement has been terminated. If a Form of Election is
revoked, the certificate or certificates (or guarantees of delivery, as
appropriate) for the shares to which such Form of Election relates shall be
promptly returned by the Exchange Agent to the stockholder submitting the same
to the Exchange Agent.

                  (v) The good faith determination of the Exchange Agent shall
be binding as to whether or not Stock Elections have been properly made or
revoked pursuant to this ss.2(e) with respect to shares and when elections and
revocations were received by it. If the Exchange Agent determines that any Stock
Election either (x) was not properly made or (y) was not submitted to or
received by the Exchange Agent with respect to any shares, such shares shall be
converted into Merger Consideration in accordance with ss.2(d)(viii)(B). The
Exchange Agent shall also make all computations as to the allocation and the
proration contemplated by ss.2(f), and any such computation shall be conclusive
and binding on the holders of shares. The Exchange Agent may, with the mutual
agreement of AAC and the Company, make such rules as are consistent with this
ss.2(e) for the implementation of the elections provided for herein as shall be
necessary or desirable fully to effect such elections.

         (f)      PRORATION.
                  ---------

                  (i) Notwithstanding anything to the contrary contained in this
Agreement but subject to ss.2(d)(v) and ss.2(h),

                           (A) the minimum number of shares of Company Common
         Stock to be converted into the right to retain Surviving Corporation
         Common Stock shall be equal to 380,952 shares (the "Minimum Stock
         Election Number"), and

                           (B) the maximum number of shares of Company Common
         Stock to be converted into the right to retain Surviving Corporation
         Common Stock shall be equal to 1,752,381 shares (the "Maximum Stock
         Election Number").

                  (ii) If the number of Stock Electing Shares exceeds in the
aggregate the Maximum Stock Election Number, then the Stock Electing Shares for
each Stock Election shall be converted into the right to retain the Stock
Election Price or the right to receive the Cash Election Price in accordance
with the terms of ss.2(d)(viii) in the following manner:

                           (A) A stock proration factor (the "Stock Proration
         Factor") shall be determined by dividing the Maximum Stock Election
         Number by the total number of Stock Electing Shares.

                           (B) The number of Stock Electing Shares covered by
         each Stock Election to be converted into the right to retain the Stock
         Election Price shall be determined by multiplying the Stock Proration
         Factor by the total number of Stock Electing Shares covered by such
         Stock Election.


 
                                       14

<PAGE>



                           (C) Each Stock Electing Share, other than any shares
         converted into the right to receive the Stock Election Price in
         accordance with ss.2(f)(ii)(B), shall be converted into the right to
         receive the Cash Election Price as if such shares were not Stock
         Electing Shares in accordance with the terms of ss.2(d)(viii)(B).

                  (iii) If the number of Stock Electing Shares is less in the
aggregate than the Minimum Stock Election Number, then:

                           (A) All Stock Electing Shares shall be converted into
         the right to receive the Stock Election Price in accordance with
         ss.2(d)(viii)(A).

                           (B) Such number of shares with respect to which a
         Stock Election is not in effect ("Non-Stock Electing Shares") shall be
         converted into the right to retain the Stock Election Price (and a
         Stock Election shall be deemed to have been made with respect to such
         shares) in accordance with ss.2(d)(viii)(A) in the following manner:

                                    (1) a cash proration factor (the "Cash
                  Proration Factor") shall be determined by dividing (x) the
                  difference between the Minimum Stock Election Number and the
                  number of Stock Electing Shares by (y) the total number of
                  shares other than Stock Electing Shares and Dissenting Shares;
                  and

                                    (2) the number of shares (in addition to
                  Stock Electing Shares) to be converted into the right to
                  retain the Stock Election Price shall be determined by
                  multiplying the Cash Proration Factor by the total number of
                  shares other than Stock Electing Shares and Dissenting Shares
                  so that the aggregate number of Stock Electing Shares and
                  Non-Stock Electing Shares converted into such right equals the
                  Minimum Stock Election Number.

         (g)      PROCEDURE FOR PAYMENT.
                  ---------------------

                  (i) At the Closing, AAC will cause to be furnished to the
Exchange Agent a corpus (the "Exchange Fund") consisting of cash sufficient in
the aggregate for the Exchange Agent to make full payment of the cash portion of
the Merger Consideration to the holders of all of the issued and outstanding
shares of Company Common Stock (other than any Dissenting Shares and AAC-owned
Shares). Immediately after the Effective Time, the Company will cause the
Exchange Agent to mail a letter of transmittal (with instructions for its use)
to each record holder of issued and outstanding shares of Company Common Stock
who did not make a timely and valid Stock Election in order to permit the
Exchange Agent to pay such record holder the cash portion of the Merger
Consideration. No interest will accrue or be paid to the holder of any issued
and outstanding shares of Company Common Stock.

                  (ii) If any portion of the Merger Consideration is to be paid
to a Person other than the registered holder of the shares represented by the
certificate or certificates surrendered in exchange therefor, it shall be a
condition to such payment that the certificate or certificates so surrendered
shall be properly endorsed or otherwise be in proper form for transfer and that
the

 
                                       15

<PAGE>



Person requesting such payment shall pay to the Exchange Agent any transfer or
other Taxes required as a result of such payment to a Person other than the
registered holder of such shares or establish to the satisfaction of the
Exchange Agent that such Tax has been paid or is not payable.

                  (iii) After the Effective Time, there shall be no further
registration of transfers of shares of Company Common Stock. If, after the
Effective Time, certificates representing shares of Company Common Stock are
presented to the Surviving Corporation, they shall be canceled and exchanged for
the cash portion of the Merger Consideration provided for in accordance with the
procedures set forth herein.

                  (iv) Any portion of the Merger Consideration made available to
the Exchange Agent to pay for shares of Company Common Stock for which appraisal
rights have been perfected shall be paid to the Surviving Corporation, upon
demand.

                  (v) The Surviving Corporation may cause the Exchange Agent to
pay over to the Surviving Corporation any portion of the Exchange Fund
(including any earnings thereon) remaining 180 days after the Effective Time,
and thereafter each remaining Company Stockholder shall be entitled to look only
to the Surviving Corporation (subject to abandoned property, escheat, and other
similar laws) as a general creditor thereof with respect to the cash payable
upon surrender of such Company Stockholder's certificates. To the extent
permitted by applicable law, neither the Surviving Corporation nor the Exchange
Agent shall be liable to any Person in respect of any shares of Company Common
Stock (or dividends or distributions with respect thereto) or cash from the
Exchange Fund delivered to a public official pursuant to any applicable
abandoned property, escheat or similar law. Any amounts remaining unclaimed by
holders of shares of Company Common Stock two years after the Effective Time (or
such earlier date immediately prior to such time as such amounts would otherwise
escheat to or become property of any Governmental Body) shall, to the extent
permitted by applicable law, become the property of Surviving Corporation free
and clear of any claims or interest of any Person previously entitled thereto.

                  (vi) No dividends or other distributions with respect to
Company Common Stock with a record date after the Effective Time shall be paid
to the holder of any unsurrendered certificate for shares of Company Common
Stock with respect to the shares of Company Common Stock represented thereby,
and no cash payment in lieu of fractional shares shall be paid to any such
holder pursuant to ss.2(i) until the surrender of such certificate in accordance
with this Article 2. Subject to the effect of applicable laws, following
surrender of any such certificate, there shall be paid to the holder of the
certificate representing whole shares of Company Common Stock issued in exchange
therefor, without interest, (A) the amount of dividends and other distributions
with a record date after the Effective Time theretofore paid with respect to
such whole shares of Company Common Stock, and (B) at the appropriate payment
date, the amount of dividends or other distributions with a record date after
the Effective Time but prior to such surrender and a payment date subsequent to
such surrender payable with respect to such whole shares of Company Common
Stock.


 
                                       16

<PAGE>



                  (vii) The Exchange Agent shall invest any cash included in the
Exchange Fund as directed by the Company or the Surviving Corporation, as the
case may be, provided that such investment shall be in (A) securities issued or
directly and fully guaranteed or insured by the United States Government or any
agency or instrumentality thereof having maturities not more than six months
from the Effective Time of the Merger, (B) certificates of deposit, Eurodollar
time deposits and bankers' acceptances with maturities not exceeding six months
and overnight bank deposits with any commercial bank, depository institution or
trust company incorporated or doing business under the laws of the United States
of America, any state thereof or the District of Columbia, provided that such
commercial bank, depository institution or trust company has, at the time of
investment, (1) capital and surplus exceeding $250 million and (2) outstanding
short-term debt securities which are rated at least A-1 by Standard & Poor's
Ratings Group, a Division of the McGraw-Hill Companies, Inc., or at least P-1 by
Moody's Investors Service, Inc. or carry an equivalent rating by a nationally
recognized rating agency if both of the two named rating agencies cease to
publish ratings of investment, (C) repurchase obligations with a term of not
more than 30 days for underlying securities of the types described in clauses
(A) and (B) above entered into with any financial institution meeting the
qualifications specified in clause (B) above, (D) commercial paper having a
rating in the highest rating categories from Standard & Poor's Ratings Group, a
Division of the McGraw-Hill Companies, Inc. or Moody's Investors Service, Inc.,
or carrying an equivalent rating by a nationally recognized rating agency if
both of the two named rating agencies cease to publish ratings of investments
and in each case maturing within six months of the Effective Time and (E) money
market mutual or similar funds having assets in excess of $1 billion. Any
interest and other income resulting from such investments shall be paid to the
Company or the Surviving Corporation, as the case may be.

                  (viii) The Surviving Corporation shall pay all charges and
expenses of the Exchange Agent.

         (h) DISSENTING SHARES. Notwithstanding ss.2(d), shares of Company
Common Stock which are issued and outstanding immediately prior to the Effective
Time and which are held by a Company Stockholder who has not voted such shares
in favor of the Merger, who shall have delivered a written demand for appraisal
of such shares in the manner provided by the Delaware General Corporation Law
and who, as of the Effective Time, shall not have effectively withdrawn or lost
such right to appraisal ("Dissenting Shares") shall not be converted into a
right to receive the Merger Consideration. The holders thereof shall be entitled
only to such rights as are granted by Section 262 of the Delaware General
Corporation Law. Each holder of Dissenting Shares who becomes entitled to
payment for such shares pursuant to Section 262 of the Delaware General
Corporation Law shall receive payment therefor from the Surviving Corporation in
accordance with the Delaware General Corporation Law; PROVIDED, HOWEVER, that
(i) if any such holder of Dissenting Shares shall have failed to establish his
entitlement to appraisal rights as provided in Section 262 of the Delaware
General Corporation Law, (ii) if any such holder of Dissenting Shares shall have
effectively withdrawn his demand for appraisal of such shares or lost his right
to appraisal and payment for his shares under Section 262 of the Delaware
General Corporation Law or (iii) if neither any holder of Dissenting Shares nor
the Surviving Corporation shall have filed a petition demanding a determination
of the value of all Dissenting Shares within the time provided in Section 262 of
the Delaware General Corporation Law, such holder shall forfeit the right to

 
                                       17

<PAGE>



appraisal of such shares and each such share shall be treated as if it had been
a Non-Stock Electing Share and had been converted, as of the Effective Time,
into a right to receive the Merger Consideration, without interest thereon, from
the Surviving Corporation as provided in ss.2(d) hereof. The Company shall give
AAC prompt notice of any demands received by the Company for appraisal of
shares, and, until the Effective Time, AAC shall have the right to participate
in all negotiations and proceedings with respect to such demands. The Company
shall not, except with the prior written consent of AAC, make any payment with
respect to, or settle or offer to settle, any such demands.

         (i)      FRACTIONAL SHARES.
                  -----------------

                  (i) No certificates or scrip representing fractional shares of
Surviving Corporation Common Stock shall be issued upon the surrender for
exchange of certificates representing shares of Company Common Stock, and such
fractional interests shall not entitle the owner thereof to vote or to any
rights of a stockholder of the Surviving Corporation.

                  (ii) Notwithstanding any other provision of this Agreement,
each holder of shares of Company Common Stock exchanged pursuant to the Merger
who would otherwise be entitled to receive a fraction of a share of Surviving
Corporation Common Stock (after taking into account all shares of Company Common
Stock delivered by such holder) shall receive, in lieu thereof, a cash payment
(without interest) representing (A) the applicable fraction of Surviving
Corporation Common Stock multiplied by (B) $21, payable as soon as practicable
on or after the Effective Time.

         (j) CLOSING OF TRANSFER RECORDS. After the close of business on the
Closing Date, transfers of Company Common Stock outstanding prior to the
Effective Time shall not be made on the stock transfer books of the Surviving
Corporation.

         3. REPRESENTATIONS AND WARRANTIES OF THE COMPANY. The Company
represents and warrants to AAC that the statements contained in this ss.3 are
correct and complete as of the date of this Agreement, except as set forth in
the disclosure schedule prepared by the Company accompanying this Agreement (the
"Company Disclosure Schedule"). The Company Disclosure Schedule will be arranged
in paragraphs corresponding to the lettered and numbered paragraphs contained in
this ss.3.

         (a) ORGANIZATION, QUALIFICATION, AND CORPORATE POWER. Each of the
Company and its Subsidiaries is a corporation duly organized, validly existing,
and in good standing under the laws of the jurisdiction of its incorporation.
Each of the Company and its Subsidiaries is duly authorized to conduct business
and is in good standing under the laws of each jurisdiction where such
qualification is required, except where the lack of such qualification would not
have a Material Adverse Effect or a material adverse effect on the ability of
the Parties to consummate the transactions contemplated by this Agreement. Each
of the Company and its Subsidiaries has full corporate power and authority to
carry on the businesses in which it is engaged and to own and use the properties
owned and used by it. Each of the Company and its Subsidiaries is duly qualified
to do business as a foreign corporation and is in good standing in each
jurisdiction where

 
                                       18

<PAGE>



the character of the property owned or leased by it or the nature of its
activities makes such qualification necessary, except for those jurisdictions
where the failure to be so qualified would not, individually or in the
aggregate, have a Material Adverse Effect.

         (b) CAPITALIZATION. The authorized capital stock of the Company
consists of 25,000,000 shares, $0.01 par value per share, of Company Common
Stock and 10,000,000 shares, $0.01 par value per share, of preferred stock (the
"Company Preferred Stock"). As of the date of this Agreement: (i) 10,715,119
shares of Company Common Stock were issued and outstanding, and no shares of
Company Preferred Stock were issued or outstanding, (ii) no shares of Company
Common Stock were reserved for issuance except that (A) 1,579,337 shares of
Company Common Stock have been reserved for issuance pursuant to the 1994
Company Stock Option and Incentive Plan, of which 1,082,334 may be issued in the
future upon the exercise of options currently outstanding and (B) 526,813 shares
of Company Common Stock have been reserved for issuance pursuant to the 1994
Company Employee Stock Purchase Plan, of which 19,037 shares are estimated to be
the number of shares of Company Common Stock which will be issued pursuant to
contributions by employees of the Company under the 1994 Company Employee Stock
Purchase Plan during calendar year 1997, and (C) 31,857 shares of Company Common
Stock have been reserved for issuance at par value on or about September 30,
1997 pursuant to an employment agreement with a former employee, (iii) no shares
of Company Preferred Stock were reserved for issuance and (iv) 242,185 shares of
Company Common Stock were held by the Company in its treasury. All of the issued
and outstanding shares of Company Common Stock have been duly authorized and are
validly issued, fully paid, and nonassessable. Except as indicated hereinabove,
there are no outstanding or authorized options, warrants, purchase rights,
subscription rights, conversion rights, exchange rights, or other contracts or
commitments that could require the Company or any Subsidiary thereof to issue,
sell, or otherwise cause to become outstanding any of its capital stock or the
capital stock of any Subsidiary thereof. There are no outstanding or authorized
stock appreciation, phantom stock, profit participation, or similar rights with
respect to the Company or any of its Subsidiaries. After giving effect to the
transactions contemplated by the Share Exchange and Termination Agreement, all
shares of capital stock of Subsidiaries of the Company are wholly owned directly
or indirectly by the Company and have been duly authorized and are validly
issued, fully paid and nonassessable.

         (c) AUTHORIZATION OF TRANSACTION. The Company has full power and
authority (including full corporate power and authority) to execute and deliver
this Agreement and to perform its obligations hereunder, subject to the
Requisite Stockholder Approval or Requisite Super-Majority Stockholder Approval,
as the case may be. The execution and delivery by the Company of this Agreement
and the Merger, and the performance of the Company's obligations hereunder, have
been duly authorized by all requisite corporate action, subject to the Requisite
Stockholder Approval or Requisite Super-Majority Stockholder Approval, as the
case may be, and this Agreement has been executed and delivered by the Company.
This Agreement constitutes the valid and legally binding obligation of the
Company, enforceable in accordance with its terms and conditions. The Company
has heretofore duly elected, pursuant to Section 203 of the Delaware General
Corporation Law, not to be governed by such Section.


 
                                       19

<PAGE>



         (d) NONCONTRAVENTION. Neither the execution and the delivery of this
Agreement, nor the consummation of the transactions contemplated hereby, will
(i) violate any constitution, statute, regulation, rule, injunction, judgment,
order, decree, ruling, charge, or other restriction of any Governmental Body or
court to which any of the Company and its Subsidiaries is subject or any
provision of the certificate of incorporation or bylaws of any of the Company
and its Subsidiaries or (ii) conflict with, result in a breach of, constitute a
default under, result in the acceleration of, create in any party the right to
accelerate, terminate, modify, or cancel, or require any notice under any
Contract to which any of the Company and its Subsidiaries is a party or by which
it is bound or to which any of its assets is subject, except where the
violation, conflict, breach, default, acceleration, termination, modification,
cancellation, or failure to give notice would not have a Material Adverse Effect
or a material adverse effect on the ability of the Parties to consummate the
transactions contemplated by this Agreement. Other than in connection with the
provisions of the Hart-Scott-Rodino Act, the Delaware General Corporation Law,
the Securities Exchange Act, the Securities Act, the state securities laws, the
Communications Act of 1934, as amended, and as set forth on ss. 3(d) of the
Company Disclosure Schedule, none of the Company and its Subsidiaries needs to
give any notice to, make any filing with, or obtain any authorization, consent,
or approval of any Governmental Body in order for the Parties to consummate the
transactions contemplated by this Agreement or execute, deliver and perform its
obligations under this Agreement, except where the failure to give notice, to
file, or to obtain any authorization, consent, or approval would not have a
Material Adverse Effect or a material adverse effect on the ability of the
Parties to consummate the transactions contemplated by this Agreement.

         (e) FILINGS WITH THE SEC. Since October 1, 1994, the Company has made
all filings with the SEC that it has been required to make under the Securities
Act and the Securities Exchange Act (collectively the "Public Reports"). Each of
the Public Reports has complied with the Securities Act and the Securities
Exchange Act and the rules and regulations promulgated thereunder in all
material respects. None of the Public Reports, as of their respective dates,
contained any untrue statement of a material fact or omitted to state a material
fact necessary in order to make the statements made therein, in light of the
circumstances under which they were made, not misleading.

         (f) FINANCIAL STATEMENTS. The Company has delivered to AAC a draft, in
substantially final form, of an Annual Report on Form 10-K for the fiscal year
ended September 30, 1997 (the "Most Recent Fiscal Year End"). The financial
statements included in or incorporated by reference into these Public Reports
(including the related notes and schedules) have been prepared in accordance
with GAAP and present fairly the financial condition of the Company and its
Subsidiaries as of the indicated dates and the results of operations of the
Company and its Subsidiaries for the indicated periods.

         (g)      [INTENTIONALLY LEFT BLANK.]

         (h) UNDISCLOSED LIABILITIES. Except as set forth in the Public Reports
and except for (i) liabilities which have arisen after the Most Recent Fiscal
Year End in the Ordinary Course of Business and (ii) liabilities under this
Agreement, neither the Company nor any of its Subsidiaries has any material
liabilities of any nature (whether accrued, absolute, contingent or otherwise)

 
                                       20

<PAGE>



required by GAAP to be set forth on a financial statement or in the notes
thereto and which individually or in the aggregate would have a Material Adverse
Effect. To the extent that any provision of this ss.3(h) conflicts with any
representation made by the Company having a Knowledge qualification contained in
any subsection of this ss.3, the provisions of that subsection shall apply.

         (i) BROKERS' FEES. Other than fees related to financial advisory
services performed for the Company to be paid to the Persons set forth on
ss.3(i) of the Company Disclosure Schedule, neither the Company nor any of its
Subsidiaries has any liability or obligation to pay any fees or commissions to
any broker, finder, or agent with respect to the transactions contemplated by
this Agreement. The Company has furnished to AAC true, correct and complete
copies of engagement letters relating to such services.

         (j) ABSENCE OF CERTAIN CHANGES. Since September 30, 1997, the Company
and its Subsidiaries have conducted their business in the Ordinary Course of
Business and there has not been:

                  (i) any event, occurrence or development of a state of facts
which, to the Company's Knowledge, individually or in the aggregate, could
reasonably be expected to have a Material Adverse Effect, except, however, any
event, occurrence or development related to, arising out of or resulting from
this Agreement and the transactions and activities contemplated hereby;

                  (ii) any declaration, setting aside or payment of any dividend
or other distribution with respect to any shares of capital stock of the
Company, or (other than (A) any retirement of, or issuance of Company Common
Stock pursuant to the exercise of options to acquire shares of Company Common
Stock granted to employees or directors, or (B) contemplated pursuant to this
Agreement), any repurchase, redemption or other acquisition by the Company or
any Subsidiary thereof of any outstanding shares of capital stock or other
securities of, or other ownership interests in, the Company or any Subsidiary
thereof;

                  (iii) any amendment of any material term of any outstanding
equity security of the Company or any Subsidiary thereof;

                  (iv) any incurrence, assumption or guarantee by the Company or
any Subsidiary thereof of any indebtedness for borrowed money, other than in the
Ordinary Course of Business in amounts and on terms consistent with past
practices;

                  (v) any damage, destruction or other casualty loss (whether or
not covered by insurance) affecting the business or assets of the Company or any
Subsidiary thereof which, individually or in the aggregate, could reasonably be
expected to have a Material Adverse Effect;

                  (vi) any material change in any method of accounting or
accounting practice by the Company or any Subsidiary thereof which, individually
or in the aggregate, could reasonably be expected to have a Material Adverse
Effect;

 
                                       21

<PAGE>



                  (vii) any (A) grant of any severance or termination pay to any
director, officer or employee of the Company or any Subsidiary thereof, (B)
entering into of any employment, deferred compensation or other similar
agreement (or any amendment to any such existing agreement) with any director,
officer or employee of the Company or any Subsidiary thereof, (C) increase in
benefits payable under any existing severance or termination pay policies or
employment agreements or (D) increase in compensation, bonus or other benefits
payable to directors, officers or employees of the Company or any Subsidiary
thereof; in each case, other than in the Ordinary Course of Business; or

                  (viii) any cancellation of any Permits or Contracts to which
the Company or any Subsidiary thereof is a party, or any written or oral
notification to the Company or any Subsidiary thereof that any party to any such
arrangement intends to cancel or not renew such arrangement beyond its
expiration date as in effect on the date hereof, which cancellation or
notification, individually or in the aggregate, could reasonably be expected to
have a Material Adverse Effect.

         (k) LITIGATION. There is no action, suit or proceeding pending against,
or, to the Knowledge of the Company, any action, suit, investigation or
proceeding threatened against or affecting, the Company or any Subsidiary
thereof or any of their respective properties before any Governmental Body,
which could reasonably be expected to have a Material Adverse Effect or which in
any manner challenges or seeks to prevent, enjoin, alter or materially delay the
Merger or any of the other transactions contemplated hereby.

         (l) TAXES. (i) The Company and each of its Subsidiaries have duly and
timely filed (taking into account any extension of time within which to file)
all material Tax Returns required to be filed by any of them and all such filed
Tax Returns are complete and accurate in all material respects; (ii) the Company
and each of its Subsidiaries have paid all Taxes required to be paid by it
including Taxes that the Company and its Subsidiaries are obligated to withhold
from amounts owing to any employee, creditor or third party, except with respect
to matters contested in good faith or for such amounts that, individually or in
aggregate, could not reasonably be expected to have a Material Adverse Effect;
(iii) as of the date of this Agreement, there are no pending or, to the
Knowledge of the Company, threatened in writing audits, examinations,
investigations or other proceedings in respect of Taxes or Tax matters relating
to the Company or any of its Subsidiaries which, if determined adversely to the
Company or its Subsidiaries, could reasonably be expected to have a Material
Adverse Effect; (iv) there are no deficiencies or claims for any Taxes that have
been proposed, asserted or assessed against the Company or any of its
Subsidiaries which, if such deficiencies or claims were finally resolved against
the Company or any of its Subsidiaries, could reasonably be expected,
individually or in the aggregate, to have a Material Adverse Effect; (v) there
are no material Liens for Taxes upon the assets of the Company or any of its
Subsidiaries, other than Liens for current Taxes not yet due and payable and
Liens for Taxes that are being contested in good faith by appropriate
proceedings; (vi) none of the Company or any of its Subsidiaries has made an
election under Section 341(f) of the Code; (vii) except as set forth in ss.3(l)
of the Company Disclosure Schedule, no extension of the statute of limitations
on the assessment of any Taxes has been granted by the Company or any of its
Subsidiaries and is currently in effect; (viii) except as set forth in ss.3(l)
of the Company Disclosure Schedule none of the Company or its Subsidiaries is a
party to any agreement or arrangement that could reasonably

 
                                       22

<PAGE>



be expected to result, separately or in the aggregate, in the actual or deemed
payment by the Company or a Subsidiary of any "excess parachute payments" within
the meaning of Section 280G or 162(m) of the Code; (ix) none of the Company or
its Subsidiaries has been a United States real property holding corporation
within the meaning of Section 897(c)(2) of the Code during the applicable period
specified in Section 897(c)(1)(A)(ii) of the Code; (x) all Taxes required to be
withheld, collected or deposited by or with respect to the Company and its
Subsidiaries have been timely withheld, collected or deposited, as the case may
be, and, to the extent required, have been paid to the relevant taxing
authority, except, in each case, to the extent that failing to so withhold,
collect, deposit or pay would not have a Material Adverse Effect; (xi) none of
the Company or its Subsidiaries has issued or assumed (A) any obligations
described in Section 279(b) of the Code, (B) any applicable high yield discount
obligations, as defined in Section 163(i) of the Code, or (C) any
registration-required obligations, within the meaning of Section 163(f)(2) of
the Code, that is not in registered form; (xii) there are no requests for
information currently outstanding that could affect the Taxes of the Company and
its Subsidiaries; and (xiii) there are no proposed reassessments of any property
owned by the Company or its Subsidiaries or other proposals that could increase
the amount of any Tax to which the Company, its Subsidiaries or any such Person
would be subject.

         (m) COMPLIANCE WITH LAWS. Neither the Company nor any Subsidiary
thereof is in violation of, or has since September 30, 1997 violated, and, to
the Knowledge of the Company, none of them is under investigation with respect
to or has been threatened to be charged with or given notice of any violation by
any Governmental Body of any applicable law, rule, regulation, judgment,
injunction, order or decree, except for violations that could not reasonably be
expected to have, individually or in the aggregate, a Material Adverse Effect.

         (n) PERMITS. Except as could not reasonably be expected to have,
individually or in the aggregate, a Material Adverse Effect, (i) the Permits are
valid and in full force and effect, (ii) neither the Company nor any Subsidiary
thereof is in default under, and no condition exists that with notice or lapse
of time or both would constitute a default under, the Permits and (iii) none of
the Permits will be terminated or impaired or become terminable, in whole or in
part, as a result of the transactions contemplated hereby. The Company and each
of its Subsidiaries have all Permits necessary to carry on its business as
currently conducted or as proposed to be conducted, except to the extent that
the failure to so have them would not have a Material Adverse Effect.

         (o) CONTRACTS. ss.3(o) of the Company Disclosure Schedule sets forth a
list of the following Contracts to which the Company or any of its Subsidiaries
is a party or by or to which it or its assets are bound or subject: (i)
Contracts relating to the borrowing of money; (ii) Contracts with any current or
former officer or director of the Company; (iii) joint venture agreements
between the Company or any of its Subsidiaries and an unaffiliated third party;
(iv) any Contracts providing for two or more fiscal year payments to or from the
Company or any Subsidiary thereof of $200,000 or more; (v) any license
agreements (except with respect to Intellectual Property), distribution
agreements, franchise agreements or agreements in respect of similar rights
granted to or held by the Company or any of its Subsidiaries; (vi) any Contract
that materially limits the freedom of the Company or any Subsidiary thereof to
compete in any line of

 
                                       23

<PAGE>



business or with any Person or in any geographical area or which would so
materially limit the freedom of the Company or any Subsidiary thereof so to
compete after the Effective Time; (vii) any other Contract not made in the
Ordinary Course of Business which Contract is material to the Company and the
Subsidiaries taken as a whole; or (viii) any Tax sharing agreement or other
arrangement. The Company has heretofore made available to AAC true and complete
copies of each of the Contracts set forth in ss.3(o) of the Company Disclosure
Schedule. Except for Contracts that could not reasonably be expected to have,
individually or in the aggregate, a Material Adverse Effect, all Contracts
disclosed in ss.3(o) of the Company Disclosure Schedule are valid and binding
Contracts of the Company or a Subsidiary thereof, are in full force and effect
(except for those that have terminated or will terminate by their own terms),
and neither the Company, any Subsidiary thereof nor, to the Knowledge of the
Company, any other party thereto, is in default in any material respect under
the terms of any such Contract.

         (p)      INTELLECTUAL PROPERTY RIGHTS.
                  ----------------------------

                  (i) ss.3(p) of the Company Disclosure Schedule sets forth a
complete list of all (A) patents and patent applications, (B) trademarks,
trademark registrations and applications to register any trademarks, and (C)
copyright registrations and copyright applications of the Company and its
Subsidiaries, in each case, whether currently used or not used by the Company
and its Subsidiaries in connection with the business of the Company and its
Subsidiaries as currently conducted. ss.3(p) also sets forth a complete list of
all material licenses with respect to Intellectual Property owned or licensed by
the Company or any Subsidiary thereof and used in the operation of the current
products of the Company or any Subsidiary thereof.

                  (ii) The Company and its Subsidiaries own or have the right to
use all material Intellectual Property currently used by the Company and its
Subsidiaries in the business of the Company and its Subsidiaries as currently
conducted. To the Knowledge of the Company, the Company and its Subsidiaries own
or have the right to use all other Intellectual Property currently used by the
Company and its Subsidiaries in the business of the Company and its Subsidiaries
as currently conducted.

                  (iii) The Company has no Knowledge of any unresolved claims
made by any third party that the Company or any Subsidiary thereof is infringing
the Intellectual Property rights of any Person as a result of the Company's or
any Subsidiary's use of any Intellectual Property. To the Company's Knowledge,
the use of the Company's or any Subsidiary's Intellectual Property does not
infringe the rights of any third party.

                  (iv) The Company and its Subsidiaries have taken reasonable
security measures to protect the secrecy, confidentiality and value of any trade
secret of the Company or any Subsidiary thereof necessary for the operation of
the Company's or any Subsidiary's business.

                  (v) To the Knowledge of the Company, the Company and its
Subsidiaries are not, nor have they received any notice that they are, in
default or, with the giving of notice or lapse of time or both, would be in
default under any material license to use any Intellectual Property listed in
ss.3(p) of the Disclosure Schedule.

 
                                       24

<PAGE>



                  (vi) To the Company's Knowledge, (A) the Company or any
Subsidiary thereof is not infringing any Intellectual Property of any other
Person in connection with the conduct of the Company's or any Subsidiary's
business as presently conducted and (B) no Person is infringing any Intellectual
Property either owned or licensed by the Company or any Subsidiary thereof which
is material to the operation of the Company's or any Subsidiary's business.

         (q) BOARD APPROVAL; FAIRNESS OPINION. The board of directors of the
Company has determined that, as of the date hereof, this Agreement and the
transactions contemplated hereby are fair to, and in the best interest of, the
Company Stockholders. Deutsche Morgan Grenfell Inc. has delivered to the board
of directors of the Company its opinion that, as of the date hereof, the
consideration to be paid to the Company Stockholders in the Merger is fair from
a financial point of view, to the Company Stockholders.

         (r) ERISA. Each Benefit Plan and Multiemployer Plan with an annualized
cost to the Company in excess of $100,000 are listed in ss.3(r) of the Company
Disclosure Schedule, and copies of all material documentation relating to such
Benefit Plans during the last three (3) years have been delivered to AAC
(including copies of written Benefit Plans, written descriptions of oral Benefit
Plans, summary plan descriptions, trust agreements, the three most recent annual
returns, employee communications, and IRS determination letters). Except as
disclosed in ss.3(r) of the Disclosure Schedule:

                  (i) each Benefit Plan has at all times been maintained and
administered in accordance with its terms and with the requirements of all
applicable laws, including ERISA and the Code (except to the extent that a
failure to so maintain and administer would have a Material Adverse Effect), and
each Benefit Plan intended to qualify under section 401(a) of the Code has a
current determination letter on which the Company may rely;

                  (ii) no Benefit Plan is a "defined benefit plan" within the
meaning of section 414(j) of the Code, other than a Benefit Plan described in
Section 401(a)(1) of ERISA;

                  (iii) no direct, contingent or secondary liability has been
incurred or is expected to be incurred by the Company or any Subsidiary under
Title IV of ERISA to any party with respect to any Benefit Plan, or, to the
Company's Knowledge, with respect to any other Plan presently or heretofore
maintained or contributed to by any ERISA Affiliate;

                  (iv) with respect to each Multiemployer Plan (A) no withdrawal
liability has been incurred by the Company or, to the Company's Knowledge, any
ERISA Affiliate, and the Company or any Subsidiary thereof has no reason to
believe that any such liability will be incurred, prior to the Closing Date,
(B), to the Knowledge of the Company, no such plan is in "reorganization"
(within the meaning of Section 4241 of ERISA), (C) no notice has been received
that increased contributions may be required to avoid a reduction in plan
benefits or the imposition of an excise tax, or that the plan is or may become
"insolvent" (within the meaning of Section 4241 of ERISA), (D), to the Knowledge
of the Company, no proceedings have been instituted by the Pension Benefit
Guaranty Corporation against the plan, (E) there is no contingent liability for
withdrawal liability by reason of a sale of assets pursuant to Section 4204 of
ERISA, and (F)

 
                                       25

<PAGE>



except as disclosed in ss.3(r) of the Company Disclosure Schedule, if the
Company or any ERISA Affiliate were to have a complete or partial withdrawal
under Section 4203 of ERISA as of the Closing, no obligation to pay withdrawal
liability would exist on the part of the Company or, to the Company's Knowledge,
any ERISA Affiliate.

                  (v) neither the Company nor, to the Company's Knowledge, any
ERISA Affiliate has incurred any liability for any tax imposed under section
4971 through 4980B of the Code or civil liability under section 502(i) or (l) of
ERISA;

                  (vi) no benefit under any Benefit Plan, including, without
limitation, any severance or parachute payment plan or agreement, will be
established or become accelerated, vested or payable by reason of any
transaction contemplated under this Agreement;

                  (vii) no tax has been incurred under section 511 of the Code
with respect to any Benefit Plan (or trust or other funding vehicle pursuant
thereto).

                  (viii) no Benefit Plan provides health or death benefit
coverage beyond the termination of an employee's employment, except as required
by Part 6 of Subtitle B of Title I of ERISA or section 4980B of the Code or any
State or local laws requiring continuation of benefits coverage following
termination of employment;

                  (ix) no suit, actions or other litigation (excluding claims
for benefits incurred in the ordinary course of plan activities) have been
brought or, to the Knowledge of the Company, threatened against or with respect
to any Benefit Plan, and there are no facts or circumstances to the Knowledge of
the Company that could reasonably be expected to give rise to any such suit,
action or other litigation; and

                  (x) all contributions to Benefit Plans and Multiemployer Plans
that were required to be made under such Plans by the Company or any Subsidiary
thereof have been made and each of the Company and each Subsidiary has performed
all material obligations required to be performed under all such Plans.

         (s)      LABOR AND EMPLOYMENT MATTERS.

                  (i) (A) No employee of the Company or any Subsidiary thereof
is represented by a labor union, no labor union has been certified or recognized
as a representative of any such employee, and neither the Company nor any
Subsidiary thereof has any obligation under any collective bargaining agreement
or other agreement with any labor union or any obligation to recognize or deal
with any labor union, and there are no such contracts or agreements pertaining
to or which determine the terms or conditions of employment of any employee of
the Company or any Subsidiary thereof; (B) there are no pending or threatened
representation campaigns, elections or proceedings; (C) the Company has no
Knowledge of any strikes, slowdowns, or work stoppages of any kind, or threats
thereof, and no such activities occurred during the 24-month period preceding
the date hereof; (D) neither the Company nor any Subsidiary thereof has engaged
in, admitted committing or been held to have committed any unfair labor
practice; and

 
                                       26

<PAGE>



(E) there are no controversies or grievances between the Company or any
Subsidiary thereof and any of its employees or representatives thereof, the
outcome of which could result in a Material Adverse Effect.

                  (ii) ss.3(s) of the Company Disclosure Schedule sets forth all
Contracts under which the Company or any Subsidiary thereof has any obligation
to provide compensation or remuneration of any kind (other than obligations to
make current wage or salary payments that are terminable at will without notice
or that are less than $100,000 annually per person) to or on behalf of any
employee or consultant.

                  (iii) The Company and each of its Subsidiaries have at all
times complied in all material respects, and is in material compliance with, all
applicable laws, rules and regulations respecting employment, wages, hours,
compensation, benefits, occupational health and safety, and payment and
withholding of taxes in connection with employment, except to the extent that
failure to so comply would not have a Material Adverse Effect.

         (t)      REAL ESTATE.
                  -----------

                  (i) ss.3(t) of the Company Disclosure Schedule is a true and
complete list (including, without limitation, legal descriptions) of all real
property owned in fee by the Company or any Subsidiary thereof (together with
all buildings and improvements thereon, the "Owned Real Property"). Such Owned
Real Property is not subject to any Liens (including, without limitation,
Leases, occupancy agreements, possessory rights, options and rights of first
refusal) except as listed on ss.3(t) of the Company Disclosure Schedule. Neither
the Company nor any Subsidiary thereof leases all or any part of any Owned Real
Property.

                  (ii) Neither the Company nor any Subsidiary thereof has
assigned, pledged or otherwise transferred, or has sublet (as sublessor) the
premises demised by, any Lease. The Company or a Subsidiary thereof is in
possession of the premises demised by the Leases. No tenant or landlord under
any Lease has exercised any option or right to (i) cancel or terminate such
Lease or shorten the term thereof, (ii) lease additional premises, (iii) reduce
or relocate the premises demised by such Lease, or (iv) purchase any property.
All brokerage commissions payable by the Company or any Subsidiary thereof with
respect to any Lease have been fully paid.

         (u)      ENVIRONMENTAL MATTERS.  To the Knowledge of the Company:

                  (i) Neither the Company nor any of its Subsidiaries is in
violation of any Environmental Laws such that the violation would have a
Material Adverse Effect;

                  (ii) The Company and each of its Subsidiaries have obtained
all permits and licenses that are required under Environmental Laws and are not
in violation of any applicable permit or license such that the failure to have
such permits or licenses or the violation thereof would have a Material Adverse
Effect;


 
                                       27

<PAGE>



                  (iii) Neither the Company nor any of its Subsidiaries has
received any written notices that are currently pending or outstanding alleging
that the Company, any Subsidiary of the Company, any predecessor of the Company,
or any entity previously owned by the Company, is in violation of or has any
liabilities under any Environmental Laws, except for any violation or
liabilities that would not have a Material Adverse Effect; and

                  (iv) There have been no releases of any Hazardous Materials
at, from, in, to, on or under any Site or, to the Company's Knowledge, any
Predecessor Site, that would have a Material Adverse Effect.

         4. REPRESENTATIONS AND WARRANTIES OF AAC. AAC represents and warrants
to the Company that the statements contained in this ss.4 are correct and
complete as of the date of this Agreement, except as set forth in the disclosure
schedule prepared by AAC (the "AAC Disclosure Schedule"). The AAC Disclosure
Schedule will be arranged in paragraphs corresponding to the numbered and
lettered paragraphs contained in this ss.4.

         (a) ORGANIZATION. AAC is a corporation duly organized, validly
existing, and in good standing under the laws of the jurisdiction of its
incorporation. AAC is duly authorized to conduct business and is in good
standing under the laws of each jurisdiction where such qualification is
required, except where the lack of such qualification would not have a Material
Adverse Effect or a material adverse effect on the ability of the Parties to
consummate the transactions contemplated by this Agreement. AAC has full
corporate power and authority to carry on the businesses in which it is engaged
and to own and use the properties owned and used by it. AAC was formed solely
for the purpose of engaging in the transactions contemplated hereby, has engaged
in no other business activities and has conducted its operations only as
contemplated hereby. AAC has not engaged, nor prior to the Effective Time will
it engage, in any business activities other than the business activities
contemplated hereby (including business activities contemplated by or reasonably
incident to the Financing). AAC has conducted and, prior to the Effective Time,
will conduct its operations only as contemplated hereby (including activities
contemplated by or reasonably incident to the Financing). AAC has no
Subsidiaries and, during the period commencing with the date hereof and ending
at the Effective Time, AAC will have no Subsidiaries. AAC does not have, nor at
the Effective Time will it have, any liabilities or material obligations not
expressly contemplated pursuant to this Agreement or the transactions
contemplated hereby.

         (b) FINANCING. AAC has delivered to the Company true and complete
copies of (i) a commitment letter, dated December 17, 1997, from Morgan Stanley
Senior Funding, Inc. relating to a $75 million senior secured revolving credit
facility, and (ii) a commitment letter, dated December 17, 1997, from Morgan
Stanley & Co. Incorporated ("MSCI") pursuant to which MSCI has committed,
subject to the terms and conditions set forth therein, to use its best efforts
to complete the public offering or the private placement of senior unsecured
notes of the Company for an aggregate amount equal to $157,000,000 or, under
certain circumstances set forth therein, to purchase such senior unsecured
notes. The commitment letters referred to in clauses (i) and (ii) above shall be
collectively referred to as the "Debt Financing Commitments" and the financing
under the Debt Financing Commitments shall be referred to as the "Financing". In
addition, AAC

 
                                       28

<PAGE>



has delivered to the Company a true and complete copy of a commitment letter,
dated December 17, 1997, from CVC pursuant to which CVC (together with its
Affiliates) has committed, subject to the terms and conditions set forth
therein, to purchase securities of CSH LLC not exceeding $72 million in the
aggregate (the "Equity Financing Commitment"), the proceeds of which shall,
pursuant to the terms of the Equity Financing Commitment, be invested by CSH LLC
in AAC in furtherance of the consummation by AAC of the transactions
contemplated hereby. The aggregate proceeds to be made available pursuant to the
Debt Financing Commitments and the Equity Financing Commitment (including any
funds which may be made available to AAC by one or more Subsidiaries of CSH LLC
as contemplated by the Equity Financing Commitment) are in an amount sufficient
to consummate the transactions contemplated hereby. None of the Debt Financing
Commitments and the Equity Financing Commitment has been withdrawn and AAC knows
of no facts or circumstances that reasonably may be expected to result in any of
the conditions set forth in the Debt Financing Commitments and the Equity
Financing Commitment not being satisfied.

         (c) AUTHORIZATION OF TRANSACTION. AAC has full power and authority
(including full corporate power and authority) to execute and deliver this
Agreement and to perform its obligations hereunder. The execution and delivery
by AAC, and the performance of its obligations hereunder have been duly
authorized by all requisite corporate action other than the requisite
stockholder approval, and this Agreement has been duly executed and delivered by
AAC. This Agreement constitutes the valid and legally binding obligation of AAC,
enforceable in accordance with its terms and conditions.

         (d) NONCONTRAVENTION. Neither the execution and the delivery of this
Agreement, nor the consummation of the transactions contemplated hereby, will
(i) violate any constitution, statute, regulation, rule, injunction, judgment,
order, decree, ruling, charge, or other restriction of any Governmental Body to
which AAC is subject or any provision of the certificate of incorporation or
bylaws of AAC or (ii) conflict with, result in a breach of, constitute a default
under, result in the acceleration of, create in any party the right to
accelerate, terminate, modify, or cancel, or require any notice under Contract,
or other arrangement to which AAC is a party or by which it is bound or to which
any of its assets is subject, except where the violation, conflict, breach,
default, acceleration, termination, modification, cancellation or failure to
give notice would not have a Material Adverse Effect or a material adverse
effect on the ability of the Parties to consummate the transactions contemplated
by this Agreement. Other than in connection with the provisions of the
Hart-Scott-Rodino Act, the Delaware General Corporation Law, the Securities
Exchange Act, the Securities Act, and the state securities laws, AAC is not
required to give any notice to, make any filing with, or obtain any
authorization, consent, or approval of any Governmental Body in order for the
Parties to consummate the transactions contemplated by this Agreement, except
where the failure to give notice, to file, or to obtain any authorization,
consent, or approval would not have a material adverse effect on the ability of
the Parties to consummate the transactions contemplated by this Agreement.
Neither AAC nor any Affiliate or Subsidiary thereof is a "telecommunications
carrier" as defined in Section 3(44) of the Communications Act of 1934, as
amended, or a "foreign carrier" or any affiliate thereof as defined in Section
63.18(h) of the rules of the Federal Communications Commission.


 
                                       29

<PAGE>



         (e) BROKERS' FEES. AAC has no liability or obligation to pay any fees
or commissions to any broker, finder, or agent with respect to the transactions
contemplated by this Agreement for which any of the Company and its Subsidiaries
could become liable or obligated.

         (f) CAPITALIZATION. The authorized capital stock of AAC consists of
4,000,000 shares, $.01 par value, of common stock (the "AAC Common Stock"). As
of the moment immediately prior to the Effective Time, the number of shares of
AAC Common Stock that will be outstanding will equal the sum of (A) 3,809,524
minus (B) the final aggregate number of Stock Electing Shares immediately prior
to the Effective Time (after giving effect to the provisions of ss.2(f)). All of
the issued and outstanding shares of AAC Common Stock have been duly authorized
and are validly issued, fully paid and nonassessable. AAC is a Subsidiary owned
by one or more of CSH LLC and its Subsidiaries. A majority of the membership
interests in CSH LLC are owned by CVC, officers and employees thereof, and
members of the management of CSH LLC, its wholly owned Subsidiary, Cable Systems
Holding Company, and CSI. There are no outstanding or authorized options,
warrants, purchase rights, subscription rights, conversion rights, exchange
rights, or other contracts or commitments that could require AAC to issue, sell,
or otherwise cause to become outstanding any of its capital stock. There are no
outstanding or authorized stock appreciation, phantom stock, profit
participation, or similar rights with respect to AAC. Except as otherwise
provided in the Ancillary Agreements, neither CSH LLC nor any of its
Subsidiaries has entered into any direct or indirect agreements related to the
voting or transferability of the Surviving Corporation Common Stock.

         5. COVENANTS. The Parties agree as follows with respect to the period
from and after the execution of this Agreement.

         (a) GENERAL. Each of the Parties will use its reasonable best efforts
to take all action and to do all things necessary, proper, or advisable in order
to consummate and make effective the transactions contemplated by this Agreement
(including satisfaction, but not waiver, of the closing conditions set forth in
ss.6 below); PROVIDED, HOWEVER, that no director or officer of the Company shall
be required either to violate any requirement imposed by law in connection
therewith or to take any action such director or officer deems, after
consultation with outside counsel, not consistent with such director's or
officer's fiduciary duty.

         (b) NOTICES AND CONSENTS. The Company will give any notices (and will
cause each of its Subsidiaries to give any notices) to third parties, and will
use its reasonable best efforts to obtain (and will cause each of its
Subsidiaries to use its reasonable best efforts to obtain) any required third
party consents, that AAC reasonably may request in connection with the matters
referred to in ss.3(d) above.

         (c) REGULATORY MATTERS AND APPROVALS. Each of the Parties will (and the
Company will cause each of its Subsidiaries to) give any notices to, make any
filings with, and use its reasonable best efforts to obtain any authorizations,
consents, and approvals of governments and governmental agencies in connection
with the matters referred to in ss.3(d) and ss.4(d) above.
Without limiting the generality of the foregoing:


 
                                       30

<PAGE>



                  (i)      SECURITIES ACT, SECURITIES EXCHANGE ACT, AND STATE
                           --------------------------------------------------
 SECURITIES LAWS.
 ---------------
                           (A) The Company will prepare and file with the SEC
         preliminary proxy materials ("Preliminary Proxy Materials") under the
         Securities Exchange Act relating to the Special Meeting. The Company
         will use its best efforts to respond to the comments of the SEC thereon
         and will make any further filings (including amendments and
         supplements) in connection therewith that may be necessary, proper or
         advisable. AAC will provide the Company with whatever information and
         assistance in connection with the foregoing filings that the Company
         may request.

                           (B) The Company and AAC shall each use its reasonable
         best efforts to take, or cause to be taken, (i) all actions necessary,
         proper or advisable by such Party with respect to the prompt
         preparation and filing with the SEC of a registration statement on Form
         S-4 relating to the Surviving Corporation Common Stock (the
         "Registration Statement") and a Rule 13e-3 Transaction Statement on
         Schedule 13E-3 with respect to the Merger (together with any
         supplements or amendments thereto, collectively, the "Schedule 13E-3"),
         (ii) such actions as may be required to have the Registration Statement
         declared effective under the Securities Act and to have the Preliminary
         Proxy Materials cleared by the SEC, in each case as promptly as
         practicable, and (iii) such actions as may be required to be taken
         under state securities or applicable Blue Sky laws in connection with
         the issuance of the securities contemplated hereby.

                           (C) As soon as practicable after the date of
         announcement of the execution of this Agreement, AAC shall file with
         the SEC a Schedule 13E-3. AAC and the Company each agrees to correct
         any information provided by it for use in the Schedule 13E-3, if and to
         the extent that it shall have become false and misleading in any
         material respect. AAC agrees to take all steps necessary to cause the
         Schedule 13E-3 as so corrected to be filed with the SEC and to be
         disseminated to holders of the Company Common Stock, in each case as
         and to the extent required by applicable federal securities laws. The
         Company and its counsel shall be given reasonable opportunity to review
         and comment on Schedule 13E-3 prior to its being filed with the SEC.

                  (ii) DELAWARE GENERAL CORPORATION LAW; SPECIAL MEETING. The
Company will (A) call a special meeting of its stockholders (the "Special
Meeting"), as soon as reasonably practicable in order that such stockholders may
consider and vote upon the adoption of this Agreement and the approval of the
Merger in accordance with the Delaware General Corporation Law and (B) mail the
Joint Disclosure Document to its stockholders as soon as reasonably practicable,
which Joint Disclosure Document will contain the affirmative recommendation of
the board of directors of the Company in favor of the adoption of this Agreement
and the approval of the Merger; PROVIDED, HOWEVER, that any provision of this
Agreement to the contrary notwithstanding, the Company will not have any
obligation to call the Special Meeting or mail the Joint Disclosure Document to
its stockholders (x) if such action would require any director or officer of the
Company either to violate any requirement imposed by law in connection therewith
or, after consultation with and advice from its outside counsel, any director or
officer of the Company determines in good faith that to take such action would
be inconsistent with such

 
                                       31

<PAGE>



director's or officer's fiduciary duty or (y) until the board of directors of
the Company shall have received from Deutsche Morgan Grenfell Inc. a
supplemental written confirmation of its opinion that the consideration to be
paid in the Merger is fair to the Company Stockholders from a financial point of
view, such confirmation to be dated as of a date within two Business Days of the
date that the Joint Disclosure Document is to be mailed.

                  (iii) HART-SCOTT-RODINO ACT. Each of the Parties will file
(and the Company will cause each of its Subsidiaries to file) any Notification
and Report Forms and related material that it may be required to file with the
Federal Trade Commission and the Antitrust Division of the United States
Department of Justice under the Hart-Scott-Rodino Act, will use its best efforts
to obtain (and the Company will cause each of its Subsidiaries to use its best
efforts to obtain) an early termination of the applicable waiting period, and
will make (and the Company will cause each of its Subsidiaries to make) any
further filings pursuant thereto that may be necessary, proper, or advisable.

         (d) FINANCING. AAC will use its reasonable best efforts to (i) satisfy
all the conditions necessary to be satisfied by it and/or its Affiliates to
obtain the full proceeds under the Debt Financing Commitments and the Equity
Financing Commitment, (ii) assist the Company in obtaining the Financing, and
(iii) obtain the equity contributions contemplated under the Equity Financing
Commitment. Subject to the Company having received the proceeds, or the
immediate right to receive the proceeds, of the Financing, AAC at the Closing
will be capitalized with equity contributions in an amount at least equal to
$80,000,000 minus the product of (i) the final aggregate number of Stock
Electing Shares immediately prior to the Effective Time (after giving effect to
the provisions of ss.2(f)) and (ii) $21. AAC will not amend the Debt Financing
Commitments or the Equity Financing Commitment in any way materially adverse to
the Company, or the Company's interest as successor to AAC, without the written
consent of the Company, which consent shall not be unreasonably withheld.

         (e) ACCOUNTING TREATMENT. The Company and AAC shall cooperate with any
reasonable requests of the other or the SEC related to the recording of the
Merger as a recapitalization for financial reporting purposes, including,
without limitation, to assist AAC and its Affiliates with any presentation to
the SEC with regard to such recording and to include appropriate disclosure with
regard to such recording in all filings with the SEC and all mailings to
shareholders made in connection with the Merger. In furtherance of the
foregoing, the Company shall provide to AAC for the prior review of AAC's
advisors any description of the transactions contemplated by this Agreement
which is meant to be filed with the SEC.

         (f) COOPERATION. The Company agrees to provide, and will cause its
Subsidiaries and its and their respective officers, employees and advisors to
provide, all necessary and appropriate cooperation in connection with the
arrangement of the Financing. In conjunction with the obtaining of the
Financing, the Company agrees, at the request of AAC, (i) to call for prepayment
or redemption of all or a portion of the indebtedness disclosed in ss.3(o) of
the Company Disclosure Schedule, but, only to the extent that such call for
prepayment or redemption is permitted under the applicable agreement
representing such indebtedness, or (ii) to prepay or redeem all or a portion of
any then existing indebtedness of the Company or its Subsidiaries described in
ss.3(o)

 
                                       32

<PAGE>



of the Company Disclosure Schedule, provided that no such prepayment or
redemption shall themselves actually be made (nor shall the Company be required
to incur any liability in respect of such prepayment or redemption) until
contemporaneously with the Effective Time.

         (g) OPERATION OF THE COMPANY'S BUSINESS. Without the written consent of
AAC, the Company will not (and will not cause or permit any of its Subsidiaries
to) engage in any practice, take any action, or enter into any transaction
outside the Ordinary Course of Business, including, without limitation, the
following:

                  (i)      authorizing or effecting any change in its charter or
bylaws (other than as contemplated by this Agreement);

                  (ii) granting any options, warrants, or other rights to
purchase or obtain any of its capital stock or issuing, selling, or otherwise
disposing of any of its capital stock (except upon the conversion or exercise of
options and other rights and obligations currently outstanding);

                  (iii) declaring, setting aside, or paying any dividend or
distribution with respect to its capital stock (whether in cash or in kind), or
redeeming, repurchasing, or otherwise acquiring any of its capital stock, in
either case, outside the Ordinary Course of Business;

                  (iv) issuing any note, bond, or other debt security or
creating, incurring, assuming, or guaranteeing any indebtedness for borrowed
money or capitalized lease obligation (except for inter-company loans or
advances from the Company to, or guarantees on behalf of, any one or more of its
Subsidiaries), outside the Ordinary Course of Business;

                  (v) imposing any Lien upon any of its assets outside the
Ordinary Course of Business;

                  (vi) other than pursuant to the transactions contemplated by
this Agreement, making any material change in employment terms for any of its
directors, officers and employees outside the Ordinary Course of Business;

                  (vii) except pursuant to existing agreements or arrangements
as of the date hereof, making any capital investment in, making any loan to, or
acquiring the securities or assets of any other Person outside the Ordinary
Course of Business;

                  (viii) adopting or amending any bonus, profit sharing,
compensation, severance, termination, stock option, pension, retirement,
deferred compensation, employment or employee benefit plan, agreement, trust,
plan, fund or other arrangement for the benefit and welfare of any director,
officer or employee, except for normal increases in the Ordinary Course of
Business and that, in the aggregate, do not result in a material increase in
benefits or compensation expense to the Company or any Subsidiary;


 
                                       33

<PAGE>



                  (ix) revaluing in any material respect any significant portion
of its assets, including, without limitation, writing down the value of
inventory in any material amount or write-off of notes or accounts receivable in
any material amount;

                  (x) paying, discharging or satisfying any material liabilities
(whether matured, unmatured, absolute, accrued, asserted or unasserted,
contingent or otherwise) other than the payment, discharge or satisfaction in
the Ordinary Course of Business of liabilities reflected or reserved against in
the consolidated financial statements of the Company and set forth in the Public
Reports or incurred in the Ordinary Course of Business;

                  (xi) making any Tax election with respect to or settling or
compromising any material income Tax liability;

                  (xii) taking any action other than in the Ordinary Course of
Business with respect to accounting policies or procedures; and

                  (xiii) committing to any of the foregoing.

         (h) FULL ACCESS. The Company will (and will cause each of its
Subsidiaries to) permit representatives of AAC to have full access at all
reasonable times, and in a manner so as not to interfere with the normal
business operations of the Company and its Subsidiaries, to all premises,
properties, personnel, books, records (including tax records), contracts, and
documents of or pertaining to each of the Company and its Subsidiaries. AAC will
keep confidential and hold as such any Confidential Information it receives from
any of the Company and its Subsidiaries in the course of the reviews
contemplated by this ss.5(h), will not use any of the Confidential Information
except in connection with this Agreement, and, if this Agreement is terminated
for any reason whatsoever, will return to the Company all tangible embodiments
(and all copies) thereof which are in AAC's possession, and AAC acknowledges
that it and its Representatives (as defined therein) will be bound to the
Confidentiality/Standstill Letter Agreement.

         (i) NOTICE OF DEVELOPMENTS. Each Party will give prompt written notice
to the others of any event giving rise to a Material Adverse Effect and causing
a breach of any of its own representations and warranties in ss.3 and ss.4
above. No disclosure by any Party pursuant to this ss.5(i), however, shall be
deemed to amend or supplement the Company Disclosure Schedule, or the AAC
Disclosure Schedule, as the case may be, or to prevent or cure any
misrepresentation, breach of warranty, or breach of covenant.

         (j)      NO SOLICITATION.
                  ---------------

                  (i) The Company shall not, and shall not permit any of its
Subsidiaries to (whether directly or indirectly through advisors, agents or
other intermediaries), and

                  (ii) the Company shall not, and shall not permit any of its
Subsidiaries to, authorize or knowingly permit any of its or their officers,
directors, agents, representatives, advisors or Subsidiaries,

 
                                       34

<PAGE>



solicit, initiate or knowingly encourage the submission of inquiries, proposals
or offers from any Third Party relating to (A) any acquisition of 10% or more of
the consolidated assets of the Company and its Subsidiaries or of over 10% of
any class of equity securities of the Company or any of its Subsidiaries, (B)
any tender offer (including a self tender offer) or exchange offer that if
consummated would result in any Third Party beneficially owning 10% or more of
any class of equity securities of the Company or any of its Subsidiaries, (C)
any merger, consolidation, business combination, recapitalization, liquidation,
dissolution or similar transaction involving the Company or any of its
Subsidiaries whose assets, individually or in the aggregate, constitute more
than 10% of the consolidated assets of the Company, other than the transactions
contemplated by this Agreement or (D) any other transaction the consummation of
which would, or could reasonably be expected to impede, interfere with, prevent
or materially delay the Merger or which would, or could reasonably be expected
to, materially dilute the benefits to AAC of the transactions contemplated
hereby (collectively, the "Acquisition Proposals" and which, if consummated,
will be an "Acquisition Transaction") or enter into or participate in any
discussions (except as may be necessary to inform a Third Party of the
provisions of this ss.5(j)) or negotiations regarding any of the foregoing, or
furnish to any Third Party any information with respect to the business,
properties or assets of the Company in connection with the foregoing, or
otherwise cooperate in any way with, or knowingly assist or participate in,
facilitate or encourage, any effort or attempt by any Third Party to do or seek
any of the foregoing; PROVIDED, HOWEVER, that the provisions of this ss.5(j)
shall not limit or prohibit the Company or its board of directors from (i)
engaging in discussions or negotiations with such a Third Party who has made a
Superior Acquisition Proposal but only if the board of directors of the Company,
after consultation with and advice from its outside counsel, determines in good
faith that, in the exercise of its fiduciary responsibilities, such discussions
or negotiations should be commenced or such information should be furnished or
such facilitation undertaken; (ii) furnishing information pursuant to an
appropriate and customary confidentiality letter concerning the Company and its
businesses, properties or assets to a Third Party who has made a Superior
Acquisition Proposal as to which a prior determination of the board of directors
of the Company as contemplated under clause (i) above has been made; PROVIDED,
FURTHER, that (A) the board of directors of the Company shall not, and shall not
authorize any officers or representatives to, take any of the foregoing actions
until notice to AAC of the Company's intent to take such action shall have been
given; and (B) if the board of directors of the Company receives a Superior
Acquisition Proposal, to the extent it may do so without breaching its fiduciary
duties as determined in good faith after consultation with its outside counsel,
and without violating any of the conditions of such Superior Acquisition
Proposal, then the Company shall promptly inform AAC of the material terms and
conditions of such proposal and the identity of the Third Party making it; or
(iii) taking a position on a tender offer by a Third Party, as required by Rule
14e-2 under the Securities Exchange Act (provided no such position shall
constitute a recommendation of such transaction if it does not constitute a
Superior Acquisition Proposal), or complying with its duties of disclosure under
applicable state law. As of the date hereof, the Company shall immediately cease
and cause each of its Subsidiaries and its and their advisors, agents and other
intermediaries to cease, any and all existing activities, discussions or
negotiations with any Third Party conducted heretofore with respect to any of
the foregoing.

         (k)      INSURANCE AND INDEMNIFICATION.
                  -----------------------------

 
                                       35

<PAGE>



                  (i) For a period of 6 years after the Effective Time, the
Surviving Corporation shall indemnify and hold harmless the present and former
officers and directors of the Company and its Subsidiaries in respect of acts or
omissions occurring prior to the Effective Time to the maximum extent provided
under the Company's certificate of incorporation and bylaws, or any Subsidiary's
certificate of incorporation or bylaws, in either case, as in effect on the date
hereof; provided that such indemnification shall be subject to any limitation
imposed from time to time under applicable law.

                  (ii) For a period of 6 years after the Effective Time, the
Surviving Corporation shall provide officers' and directors' liability insurance
in respect of acts or omissions occurring prior to the Effective Time covering
each such Person currently covered by the Company's or any Subsidiary's
officers' and directors' liability insurance policy on terms with respect to
coverage and amount no less favorable than those of such policy in effect on the
date hereof (or, if such insurance policy cannot be obtained, such insurance
policy on terms with respect to coverage and amount as favorable as can be
obtained, subject to the proviso at the conclusion of this sentence), provided
that, in satisfying its obligation under this Section, the Surviving Corporation
shall not be obligated to pay premiums in excess of, 150% of the amount per
annum the Company paid in its last full fiscal year, which amount has been
disclosed to AAC.

         (l)      EMPLOYEES.
                  ---------

                  (i) For a period of one year following the Effective Time, the
Surviving Corporation will not adopt or make effective any change in any
"employee benefit plan" (within the meaning of Section 3(3) of ERISA) that would
terminate or substantially reduce any benefits provided thereunder or materially
increase the cost to any employee of participation thereunder without any notice
to all affected employees at least 60 days in advance.

                  (ii) The Surviving Corporation shall assume and perform the
obligations of the Company and its Subsidiaries under the employment and
severance contracts specified in ss.3(h) of the Company Disclosure Schedule.

                  (iii) Prior to the Effective Time, the Company shall adopt,
effective at the Effective Time, a stock incentive plan substantially in the
form attached as Exhibit C hereto (the "Plan"), and shall reserve for issuance
under such Plan a number of shares, equal to 10% of Surviving Corporation Common
Stock. To the extent required by law or NASDAQ listing requirements or necessary
to obtain customary tax benefits for the Company or the holders of options, the
adoption of such Plan shall be contingent on approval by the holders of
Surviving Corporation Common Stock. The Company shall use its best efforts to
secure such approval not later than the Effective Time. On or immediately after
the Effective Time, the Surviving Corporation shall grant options to purchase at
least 10.0% of Surviving Corporation Common Stock under such Plan pursuant to
the terms and conditions set forth in ss.5 of the Plan to such Persons and in
such amounts as determined by the board of directors of the Surviving
Corporation or its Compensation Committee. Within eighteen months following the
Effective Time, the Surviving Corporation shall grant options to purchase at
least 2.0% of Surviving Corporation Common Stock (except with respect to options
that expire by their own terms). As soon as

 
                                       36

<PAGE>



practicable after the adoption of such Plan, the Surviving Corporation shall
file a registration statement on Form S-8 (or other appropriate form) with
respect to the Surviving Corporation Common Stock to be issued pursuant to such
Plan and shall use its best efforts to maintain the effectiveness of such
registration statement (and maintain the currency of any related prospectus) for
so long as options are outstanding or may be granted under such Plan.

                  (iv) Prior to the Effective Time, the Company shall (A) take
such action as may be necessary to terminate the Company's 1994 Stock Option and
Incentive Plan, and (B) use its reasonable efforts under the circumstances to
enter into a written agreement with each Person who holds an option to purchase
shares of Company Common Stock whereby each such option holder agrees that such
option will be cancelled immediately prior to the Effective Time in exchange for
the cash payment specified in ss.2(d)(vii). If the per share exercise price of
any option equals or exceeds the Cash Election Price, such agreement shall
provide for the cancellation of such option without any corresponding payment.

         (m)      DISCLOSURE.
                  ----------

                  (i) DISCLOSURE BY COMPANY. The Joint Disclosure Documents
prepared by the Company will comply with the Securities Exchange Act in all
material respects. The Joint Disclosure Documents will not contain any untrue
statement of a material fact or omit to state a material fact necessary in order
to make the statements made therein, in the light of the circumstances under
which they will be made, not misleading; PROVIDED, HOWEVER, that the Company
makes no representation or warranty with respect to any information that AAC and
its Affiliates will supply specifically for use in the Joint Disclosure
Documents.

                  (ii) DISCLOSURE BY AAC. The Joint Disclosure Documents will
not contain any untrue statement of a material fact or omit to state a material
fact necessary in order to make the statements made therein, in the light of the
circumstances under which they will be made, not misleading; PROVIDED, HOWEVER,
that AAC makes no representation or warranty with respect to any information
that the Company will supply specifically for use in the Joint Disclosure
Documents.

         (n) COMFORT LETTERS. The Company will deliver to AAC on or before the
date the Joint Disclosure Document is mailed to the Company Stockholders a
letter from its accountants, Coopers & Lybrand, LLP stating its conclusions as
to the accuracy of certain information derived from the financial records from
the Company and its Subsidiaries and contained in the Joint Disclosure Document
(the "Company Comfort Letter"). The Company Comfort Letter shall be reasonably
satisfactory to AAC in form and substance. AAC will deliver to the Company on or
before the date the Joint Disclosure Document is mailed to the Stockholders of
the Company a letter from its accountants, Coopers & Lybrand, LLP, stating its
conclusions as to the accuracy of certain information derived from the financial
records of AAC and contained in the Joint Disclosure Document (the "AAC Comfort
Letter"). The AAC Comfort Letter shall be reasonably satisfactory to the Company
in form and substance. Each of the Company Comfort Letter and the AAC Comfort
Letter shall cover such matters as are customarily covered in transactions of
the type contemplated hereby.


 
                                       37

<PAGE>



         (o) AFFILIATE LETTERS. Not later than the tenth Business Day following
the mailing of the Joint Disclosure Document, the Company shall deliver to AAC,
after consultation with legal counsel, a list of the names and addresses of
those persons it deems to be "Affiliates" of the Company within the meaning of
Rule 145 promulgated under the Securities Act and a letter, substantially in the
form attached hereto as Exhibit D, restricting the disposition of shares
retained by such Affiliate as part of the Merger Consideration.

         (p) CONTINUED REGISTRATION. The Surviving Corporation will use
commercially reasonable efforts, for at least two years after the Effective Time
of the Merger, to cause the Surviving Corporation Common Stock not to be
de-listed from The NASDAQ National Market System ("NASDAQ"); PROVIDED, HOWEVER,
that the Surviving Corporation may cause or permit the Surviving Corporation
Common Stock to be de-listed in connection with any transaction which results in
the termination of registration of such securities under Section 12 of the
Securities Exchange Act; PROVIDED, HOWEVER, that nothing in this ss.5(p) shall
require the Surviving Corporation to take any affirmative action to prevent the
Surviving Corporation Common Stock from being delisted by NASDAQ if the
Surviving Corporation Common Stock ceases to meet the applicable listing
standards.

         (q) OPERATION OF AAC'S BUSINESS. Except as expressly permitted by this
Agreement or contemplated in the Ancillary Agreements, the Debt Financing
Commitments and the Equity Financing Commitment, AAC will not incur any
liabilities or material obligations not set forth in ss.5(q) of the AAC
Disclosure Schedule.

         (r) NO AMENDMENT OF ANCILLARY AGREEMENTS. From the date hereof through
the Effective Time, neither AAC nor the Company shall amend in any manner
adverse to the other Party in any material respect any of the Ancillary
Agreements without the other Party's prior written consent, which consent shall
not be unreasonably withheld.

         (s) SOLVENCY OPINION. The Company shall use its commercially reasonable
efforts to obtain the Solvency Opinion.

         6.       CONDITIONS TO OBLIGATION TO CLOSE.
                  ---------------------------------

         (a) CONDITIONS TO OBLIGATION OF AAC. The obligation of AAC to
consummate the transactions to be performed by it in connection with the Closing
is subject to satisfaction of the following conditions:

                  (i) the representations and warranties set forth in ss.3 above
shall be true and correct in all respects at and as of the Effective Time,
except (A) for those representations and warranties which address matters only
as of a particular date (which shall have been true and correct as of such date,
subject to clause (B)), and (B) where the failure of such representations and
warranties taken together without regard to any materiality or Knowledge
qualification set forth therein to be true and correct could reasonably be
expected to have a Material Adverse Effect, with the same force and effect as if
made on and as of the Effective Time;


 
                                       38

<PAGE>



                  (ii) the Company shall have performed and complied with all of
its covenants hereunder in all material respects through the Closing;

                  (iii) there shall not be any judgment, order, decree,
stipulation, injunction, or charge in effect preventing consummation of any of
the transactions contemplated by this Agreement; PROVIDED, HOWEVER, that AAC
shall use its reasonable best efforts to have any such judgment, order, decree,
stipulation, injunction or charge vacated or reversed;

                  (iv) the Company shall have delivered to AAC a certificate to
the effect that each of the conditions specified above in ss.6(a)(i)-(iii) is
satisfied in all respects

                  (v) this Agreement and the Merger shall have received the
Requisite Stockholder Approval or the Requisite Super-Majority Stockholder
Approval, as the case may be;

                  (vi) the holders of not more than 3% of the outstanding shares
of Company Common Stock shall have demanded appraisal of such shares in
accordance with the Delaware General Corporation Law;

                  (vii) the Company shall have delivered to AAC written consents
to the transactions contemplated hereby from third parties who are parties to
Contracts set forth on ss.6(a) of the Company Disclosure Schedule;

                  (viii) all applicable waiting periods (and any extensions
thereof) under the Hart-Scott-Rodino Act shall have expired or otherwise been
terminated and the Parties shall have received all other authorizations,
consents, and approvals of Governmental Bodies referred to in ss.3(d) above;

                  (ix) AAC shall be reasonably satisfied that the Merger will be
recorded as a recapitalization for financial reporting purposes;

                  (x) Total Debt of the Company and its Subsidiaries determined
on a consolidated basis in accordance with GAAP as of the Effective Time shall
not exceed $38 million;

                  (xi) the Company shall have received the proceeds of the
Financing on terms and conditions set forth in the Debt Financing Commitments or
upon terms and conditions which are substantially equivalent thereto;

                  (xii) the Company shall have received and accepted the
resignations of all directors of the Company other than Richard P. Kleinknecht;

                  (xiii) the Stockholders Agreement shall be in full force and
effect and the parties thereto shall have taken the actions required to be taken
pursuant to Section 5 thereof; and

                  (xiv) each of the Investors Agreement, Share Exchange and
Termination Agreement, the Starr Termination Agreement, the Walsh Employment
Agreement, the KEC-NJ

 
                                       39

<PAGE>



Labor Pool Agreement, the Corporate Opportunity Agreement, and the KEC-NY Labor
Pool Agreement shall be in full force and effect.

To the extent permitted by applicable law, AAC may waive any condition specified
in this ss.6(a) if it executes and delivers to the Company written notice so
stating at or prior to the Closing.

         (b) CONDITIONS TO OBLIGATION OF THE COMPANY. The obligation of the
Company to consummate the transactions to be performed by it in connection with
the Closing is subject to satisfaction of the following conditions:

                  (i) the representations and warranties set forth in ss.4
above, without regard to any materiality or Knowledge qualification set forth
therein, shall be true and correct in all respects at and as of the Effective
Time, except (A) for those representations and warranties which address matters
only as of a particular date (which shall have been true and correct as of such
date, subject to clause (B)) , and (B) where the failure of such representations
and warranties taken together without regard to any materiality or Knowledge
qualification set forth therein to be true and correct could reasonably be
expected to have a Material Adverse Effect, with the same force and effect as if
made on and as of the Effective Time;

                  (ii) AAC shall have performed and complied with all of its
covenants hereunder in all material respects through the Closing;

                  (iii) there shall not be any judgment, order, decree,
stipulation, injunction, or charge in effect preventing consummation of any of
the transactions contemplated by this Agreement; PROVIDED, HOWEVER, that Company
shall use its reasonable best efforts to have any such judgment, order, decree,
stipulation, injunction or charge vacated or reversed;

                  (iv) AAC shall have delivered to the Company a certificate to
the effect that each of the conditions specified above in ss.6(b)(i)-(iii) is
satisfied in all respects;

                  (v) this Agreement and the Merger shall have received the
Requisite Stockholder Approval or the Requisite Super-Majority Stockholder
Approval, as the case may be;

                  (vi) the AAC Shareholder Agreement shall be in full force and
effect;

                  (vii) all applicable waiting periods (and any extensions
thereof) under the Hart-Scott-Rodino Act shall have expired or otherwise been
terminated and the Parties shall have received all other authorizations,
consents, and approvals of Governmental Bodies referred to in ss.3(d) above;

                  (viii) the Company shall be reasonably satisfied that the
Merger will be recorded as a recapitalization for financial reporting purposes;
and

                  (ix) the board of directors of the Company shall have received
the Solvency Opinion.

 
                                       40

<PAGE>



To the extent permitted by applicable law, the Company may waive any condition
specified in this ss.6(b) if it executes and delivers to AAC written notice so
stating at or prior to Closing.

         7.       TERMINATION.
                  -----------

         (a) TERMINATION OF AGREEMENT. Any of the Parties may terminate this
Agreement, and the Merger contemplated hereby may be abandoned, with the prior
authorization of its board of directors (whether before or after stockholder
approval), as provided below:

                  (i) the Parties may terminate this Agreement by mutual written
consent at any time prior to the Effective Time;

                  (ii) AAC may terminate this Agreement by giving written notice
to the Company at any time prior to the Effective Time (A) in the event the
Company has breached any material representation, warranty, or covenant
contained in this Agreement when made or at any time prior to the Closing in any
material respect, AAC has notified the Company of the breach, and the breach has
continued without cure for a period of 15 days after the notice of breach, or
(B) if the Closing shall not have occurred on or before April 30, 1998, by
reason of the failure of any condition precedent under ss.6(a) hereof (unless
the failure results from AAC breaching any of its representations, warranties,
or covenants contained in this Agreement);

                  (iii) the Company may terminate this Agreement by giving
written notice to AAC at any time prior to the Effective Time (A) in the event
AAC has breached any material representation, warranty, or covenant contained in
this Agreement when made or at any time prior to the Closing in any material
respect, the Company has notified AAC of the breach, and the breach has
continued without cure for a period of 15 days after the notice of breach, or
(B) if the Closing shall not have occurred on or before April 30, 1998, by
reason of the failure of any condition precedent under ss.6(b) hereof (unless
the failure results from the Company breaching any of its representations,
warranties, or covenants contained in this Agreement);

                  (iv) the Company may terminate this Agreement by giving
written notice to AAC, at any time prior to the Effective Time, in the event
that a Person has made an Acquisition Proposal that the board of directors of
the Company determines, in good faith, and after consultation with and advice
from its financial advisors, is reasonably likely to be subject to completion
and would, if consummated, result in a transaction more favorable, from a
financial point of view, to the Company's Stockholders than this Agreement and
the Merger (a "Superior Acquisition Proposal");

                  (v) either Party may terminate this Agreement by giving
written notice to the other Party at any time after the Special Meeting in the
event this Agreement and the Merger fail to receive the Requisite Stockholder
Approval;

                  (vi) AAC may terminate this Agreement by giving written notice
to the Company if (A) the board of directors of the Company shall have withdrawn
or modified or amended, in a manner adverse to AAC, either its approval or
recommendation of this Agreement and the Merger or its recommendation that the
Company Stockholders adopt and approve this Agreement and the

 
                                       41

<PAGE>



Merger, (B) the board of directors of the Company shall have approved,
recommended or endorsed any Superior Acquisition Proposal, or (C) if the Company
has failed to duly call the Special Meeting;

                  (vii) the Company may terminate this Agreement by giving
written notice to AAC if (A) the board of directors of the Company shall have
withdrawn or modified or amended, in a manner adverse to AAC, its approval and
recommendation of this Agreement and the Merger or its recommendation that the
Company Stockholders adopt and approve this Agreement and the Merger, or (B) the
board of directors of the Company shall have approved, recommended or endorsed
any Superior Acquisition Proposal, provided that the Company shall be in
compliance with ss.5(j).

         (b) EFFECT OF TERMINATION. If any Party terminates this Agreement
pursuant to ss.7(a) above, all rights and obligations of the Parties hereunder
shall terminate without any liability of any Party (or its directors, officers
or stockholders) to any other Party (except for any liability of any Party then
in breach); PROVIDED, HOWEVER, that (i) this ss.7(b), (ii) ss.7(c), (iii) the
confidentiality provisions contained in ss.5(h) above, (iv) the
Confidentiality/Standstill Letter Agreement, and (v) the provisions of ss.8(b),
ss.8(h), ss.8(i) and ss.8(l), shall, in each case, survive any such termination.

         (c) TERMINATION FEE; EXPENSES. Upon the occurrence of any one of the
following, the Company shall pay AAC a Termination Fee (as defined below) and
certain expenses (as described below):

                           (i) this Agreement having been terminated by the
                           Company or AAC, as the case may be, pursuant to
                           ss.7(a)(iv), ss.7(a)(vi)(B) or ss.7(a)(vii)(B); or

                           (ii) a Third Party having made an Acquisition
                           Proposal (whether prior to or following the
                           termination of this Agreement) and this Agreement
                           having been terminated pursuant to ss.7(a)(vi)(A),
                           ss.7(a)(vi)(C) or ss.7(a)(vii)(A), the Company
                           consummates an Acquisition Transaction within 12
                           months following termination of this Agreement.

The termination fee referred to in the preceding sentence shall be equal to
$3.37 million (the "Termination Fee") and shall be payable, if at all, upon the
occurrence of the relevant event under clause (i) or (ii) above. The expenses
referred to in the first sentence of this ss.7(c) shall mean that amount, not to
exceed $2.2 million in the aggregate, of all reasonable out-of-pocket costs,
fees and expenses, including, without limitation, the reasonable fees and
disbursements of banks, investment banks, accountants or legal counsel.
Notwithstanding anything to the contrary contained in this ss.7(c), the expenses
referred to in the previous sentence shall be payable upon termination of this
Agreement under ss.7(a)(iv), ss.7(a)(vi) or ss.7(a)(vii) above within ten (10)
Business Days of receipt by the Company of reasonably satisfactory documentation
detailing such costs, fees and expenses.


 
                                       42

<PAGE>



         8.       MISCELLANEOUS.
                  -------------

         (a) SURVIVAL. Except for the provisions of ss.7(b), ss.7(c) and the
provisions of ss.8 (and the provisions referred to in ss.7(b), ss.7(c) and ss.8)
none of the representations, warranties, and covenants of the Parties will
survive the Effective Time.

         (b) PRESS RELEASES AND PUBLIC ANNOUNCEMENTS. No Party shall issue any
press release or make any public announcement relating to the subject matter of
this Agreement without the prior written approval of the other Parties;
PROVIDED, HOWEVER, that any Party may make any public disclosure it believes in
good faith is required by applicable law or any listing or trading agreement
concerning its publicly-traded securities (in which case the disclosing Party
will use its reasonable best efforts to advise the other Party prior to making
the disclosure).

         (c) NO THIRD PARTY BENEFICIARIES. This Agreement shall not confer any
rights or remedies upon any Person other than the Parties and their respective
successors and permitted assigns; PROVIDED, HOWEVER, that (i) the provisions in
ss.2 above concerning payment of the Merger Consideration are intended for the
benefit of the Company's Stockholders; (ii) the provisions in ss.5(k) above
concerning insurance and indemnification are intended for the benefit of the
individuals specified therein and their respective heirs and legal
representatives; (iii) the provisions of ss.5(l) are for the benefit of
continuing employees; (iv) the provisions of ss.2(d)(vii) are for the benefit of
the holders of options to purchase shares of Company Common Stock; and (v) the
provisions of ss.5(p) are intended for the benefit of the holders of Surviving
Corporation Common Stock other than the stockholders of AAC.

         (d) ENTIRE AGREEMENT. This Agreement (including the Exhibits and the
Schedule hereto, the Company Disclosure Schedule and AAC Disclosure Schedule and
the attachments thereto) and the Confidentiality/Standstill Letter Agreement,
constitute the entire agreement between the Parties and supersede any prior
understandings, agreements, or representations by or between the Parties,
written or oral, to the extent they related in any way to the subject matter
hereof. References in this Agreement to transactions contemplated by this
Agreement shall include transactions contemplated by the Ancillary Agreements.

         (e) SUCCESSION AND ASSIGNMENT. This Agreement shall be binding upon and
inure to the benefit of the Parties named herein and their respective successors
and permitted assigns. No Party may assign either this Agreement or any of its
rights, interests, or obligations hereunder without the prior written approval
of the other Party.

         (f) COUNTERPARTS. This Agreement may be executed in one or more
counterparts, each of which shall be deemed an original but all of which
together will constitute one and the same instrument.

         (g) GENERAL INTERPRETIVE PRINCIPLES. For purposes of this Agreement,
except as otherwise expressly provided or unless the context otherwise requires:


 
                                       43

<PAGE>



                  (i) the terms defined in this Agreement include the plural as
well as the singular, and the use of any gender herein shall be deemed to
include the other gender;

                  (ii) accounting terms not otherwise defined herein have the
meanings given to them in accordance with GAAP;

                  (iii) references herein to "articles," "sections," "ss.'s,"
"subsections," and other subdivisions without reference to a document are to
designated articles, sections, ss.'s, subsections, and other subdivisions of
this Agreement;

                  (iv) a reference to a subsection without further reference to
a section is a reference to such subsection as contained in the same section in
which the reference appears, and this rule shall also apply to paragraphs and
other subdivisions;

                  (v) the words "herein," "hereof," "hereunder" and other words
of similar import refer to this Agreement as a whole and not to any particular
provision;

                  (vi) the term "include" or "including" shall mean without
limitation by reason of enumeration;

                  (vii) the headings in this Agreement are solely for
convenience of reference and shall be given no effect in the construction or
interpretation of this Agreement;

                  (viii) any reference to any federal, state, local, or foreign
statute or law shall be deemed also to refer to all rules and regulations
promulgated thereunder, unless the context otherwise requires; and

                  (ix) the Parties have participated jointly in the negotiation
and drafting of this Agreement, and, in the event an ambiguity or question of
intent or interpretation arises, this Agreement shall be construed as if drafted
jointly by the Parties and no presumption or burden of proof shall arise
favoring or disfavoring either Party by virtue of the authorship of any of the
provisions of this Agreement.

         (h) NOTICES. All notices, requests, demands, claims, and other
communications hereunder will be in writing. Any notice, request, demand, claim,
or other communication hereunder shall be deemed duly given if (and then two
Business Days after) it is sent by registered or certified mail, return receipt
requested, postage prepaid, and addressed to the intended recipient as set forth
below:


 
                                       44

<PAGE>



         If to the Company:                 IPC Information Systems, Inc.
                                            Wall Street Plaza
                                            88 Pine Street
                                            New York, New York 10005
                                            Facsimile: (212) 858-7959
                                            Attention: Daniel Utevsky, Esq.

                  Copy to:                  Thacher Proffitt & Wood
                                            Two World Trade Center
                                            New York, New York 10048
                                            Facsimile: (212) 912-7751
                                            Attention: Thomas N. Talley, Esq.

         If to AAC:                         Arizona Acquisition Corp.
                                            c/o Cable Systems Holding LLC
                                            505 North 51st Avenue
                                            Phoenix, Arizona 85043-2701
                                            Facsimile:  (602) 233-5782
                                            Attention:  President

                  Copies to:                Citicorp Venture Capital, Ltd.
                                            399 Park Avenue
                                            New York, New York 10043
                                            Facsimile: (212) 888-2940
                                            Attention: Richard M. Cashin, Jr.

                                            Morgan, Lewis & Bockius LLP
                                            101 Park Avenue
                                            New York, New York 10178-0060
                                            Facsimile: (212) 309-6273
                                            Attention: Philip H. Werner, Esq.

Either Party may send any notice, request, demand, claim, or other communication
hereunder to the intended recipient at the address set forth above using any
other means (including personal delivery, expedited courier, messenger service,
telecopy, telex, ordinary mail, or electronic mail), but no such notice,
request, demand, claim, or other communication shall be deemed to have been duly
given unless and until it actually is received by the intended recipient. Any
Party may change the address to which notices, requests, demands, claims, and
other communications hereunder are to be delivered by giving the other Party
notice in the manner herein set forth.

         (i) GOVERNING LAW; FORUM SELECTION; AND WAIVER OF JURY TRIAL. (i) This
Agreement shall be governed by and construed in accordance with the domestic
laws of the State of New York without giving effect to any choice or conflict of
law provision or rule (whether of the State of New York or any other
jurisdiction) that would cause the application of the laws of any jurisdiction
other

 
                                       45

<PAGE>



than the State of New York; except, however, the Delaware General Corporation
Law shall apply to matters governed exclusively thereby.

                  (ii) The Parties hereto agree that any action, suit or
proceeding (a "Proceeding") arising out of the transactions contemplated by this
Agreement shall be commenced and litigated exclusively in the United States
District Court for the District of Delaware or in a state court of the State of
Delaware.

                  (iii) Each of the Parties hereto hereby irrevocably and
unconditionally (A) consents to submit to the exclusive jurisdiction of the
federal and state courts in the State of Delaware for any Proceeding (and each
such Party agrees not to commence any Proceeding, except in such courts), (B)
waives any objection to the laying of venue of any Proceeding in the courts of
the State of Delaware, and (C) waives, and agrees not to plead or to make, any
claim that any Proceeding brought in any court of the State of Delaware has been
brought in an improper or otherwise inconvenient forum.

                  (iv) Each of the Parties hereby irrevocably designates and
appoints RL&F Service Corp., with offices on the date hereof at One Rodney
Square, Wilmington, Delaware 19801 (hereinafter called the "Agent"), as its
attorney-in-fact to receive service of process in such Proceeding, it being
agreed that service upon such attorney-in-fact shall constitute valid service
upon each of the Parties or its successors or assigns. Each of the Parties
agrees that (A) the sole responsibilities of the Agent shall be (1) to receive
such process, (2) to send a copy of any such process so received to the relevant
Party, by registered airmail, return receipt requested, at the address set forth
in ss.8(h) hereof, or at the last address filed in writing by such Party with
the Agent and (3) to give prompt telegraphic notice of receipt thereof to such
Party at such address, and (B) the Agent shall have no responsibility for the
receipt or non-receipt by such Party of such process, nor for any performance or
non-performance by such Party or any other Party to this Agreement or their
successors or assigns. Each of the Parties hereby agrees to pay to the Agent
such compensation as shall be agreed upon from time to time for services of the
Agent hereunder. Each of the Parties hereby agrees that its submission to
jurisdiction and its designation of the Agent set forth above is made for the
express benefit of each of the Parties hereto. Each of the Parties further
agrees that a final judgment against a Party in any such action or proceeding
shall be conclusive, and may be enforced in other jurisdictions by suit on the
judgment or in any other manner provided by law, a certified or true copy of
which final judgment shall be conclusive evidence of the fact and of the amount
of any indebtedness or liability of such Party herein described; provided that
nothing in this ss.8(i)(iv) shall affect the right of any Party or its
successors or assigns to serve legal process in any other manner permitted by
law. Each of the Parties further covenants and agrees that so long as this
Agreement shall be in effect, each of the Parties shall maintain a duly
appointed agent for the service of summonses and other legal processes in
Wilmington, Delaware and will notify the other parties hereto of the name and
address of such agent if it is no longer the Agent.

                  (v) Each of the Parties hereto agrees that it shall not seek a
jury trial in any Proceeding based upon or arising out of or otherwise related
to this Agreement or any of the other documents and instruments contemplated
hereby and each of the Parties hereto hereby waives any and all right to any
such jury trial.

 
                                       46

<PAGE>



         (j) AMENDMENTS AND WAIVERS. The Parties may mutually amend any
provision of this Agreement at any time prior to the Effective Time with the
prior authorization of their respective boards of directors; PROVIDED, HOWEVER,
that any amendment effected subsequent to stockholder approval will be subject
to the restrictions contained in the Delaware General Corporation Law. No
amendment of any provision of this Agreement shall be valid unless the same
shall be in writing and signed by both Parties. No waiver by either Party of any
default, misrepresentation, or breach of warranty or covenant hereunder, whether
intentional or not, shall be deemed to extend to any prior or subsequent
default, misrepresentation, or breach of warranty or covenant hereunder or
affect in any way any rights arising by virtue of any prior or subsequent such
occurrence. No waiver shall be valid unless the same shall be in writing and
signed by both Parties.

         (k) SEVERABILITY. Any term or provision of this Agreement that is
invalid or unenforceable in any situation in any jurisdiction shall not affect
the validity or enforceability of the remaining terms and provisions hereof or
the validity or enforceability of the offending term or provision in any other
situation or in any other jurisdiction; PROVIDED, HOWEVER, that if the
invalidity of any covenant, agreement or provision shall deprive any party of
the economic benefit intended to be conferred by this Agreement, the Parties
shall negotiate in good faith to amend the Agreement in a manner so that the
economic effect of the Agreement, as amended, is as nearly as possible the same
as the economic effect of this Agreement.

         (l) EXPENSES. Each of the Parties will bear its own costs and expenses
(including legal fees and expenses) incurred in connection with this Agreement
and the transactions contemplated hereby, whether or not the Merger is
consummated.

         (m) INCORPORATION OF EXHIBITS, SCHEDULE AND DISCLOSURE SCHEDULES. The
Exhibits, Schedule, the Company Disclosure Schedule and the AAC Disclosure
Schedule identified in this Agreement are incorporated herein by reference and
made a part hereof.

         (n) TRANSFER TAXES. Any liability arising out of the New York City or
New York State Real Property Transfer Tax, if applicable and due with respect to
the Merger, shall be borne by the Surviving Corporation and expressly shall not
be a liability of the Company Stockholders.

         (o) LIMITED RECOURSE. Notwithstanding anything in this Agreement or any
Ancillary Agreement to the contrary (except as otherwise provided in the
Ancillary Agreements), (i) the obligations and liabilities of the Parties
hereunder and thereunder shall be without recourse to any stockholder of such
Party or any of such stockholder's Affiliates (other than the Parties), or any
of their respective directors, employees, officers, representatives or agents
(in each case, in their capacity as such) and shall be limited to the assets of
such Party and (ii) the stockholders of AAC have made no (and shall not be
deemed to have made any) representations, warranties or covenants (express or
implied) under or in connection with this Agreement or any Ancillary Agreement.





 
                                       47

<PAGE>



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


                                      IPC INFORMATION SYSTEMS, INC.



                                      By:      /S/ S.T. CLONTZ
                                         ----------------------------------
                                      Title:   PRESIDENT AND C.E.O.
                                            -------------------------------

                                      ARIZONA ACQUISITION CORP.



                                      By:      /S/ PETER A. WOOG
                                          ---------------------------------
                                      Title:   PRESIDENT
                                             ------------------------------

 
                                       48

<PAGE>


                                                                      SCHEDULE A


                       DIRECTORS OF SURVIVING CORPORATION
                       ----------------------------------

Peter Woog
Richard Cashin, Jr.
David Y. Howe
Robert J. McInerney
Richard Kleinknecht
2 independent directors to be designated by AAC
2 management directors to be designated by AAC


 
                                       49

<PAGE>
                                                                     EXHIBIT A-1


                              AMENDED AND RESTATED
                          CERTIFICATE OF INCORPORATION

                                       OF

                          IPC INFORMATION SYSTEMS, INC.



                  IPC Information Systems, Inc., a Delaware corporation
incorporated August 29, 1985 under the name IPC Merger Corporation, does hereby
amend and restate its certificate of incorporation to read in its entirety as
set forth below:

                  1. NAME.  The name of the corporation is IPC Information 
Systems, Inc. (the "Corporation").

                  2. REGISTERED OFFICE AND AGENT. The address of the
Corporation's registered office in the State of Delaware is Corporation Trust
Center, 1209 Orange Street, in the City of Wilmington, County of New Castle. The
name of the Corporation's registered agent at such address is The Corporation
Trust Company.

                  3. PURPOSE. The nature of the business and purpose or purposes
to be conducted or promoted by the Corporation is to engage in any lawful act or
activity for which corporations may be organized under the General Corporation
Law of the State of Delaware.

                  4.  CAPITAL STOCK.

                  4.1 SHARES, CLASSES AND SERIES AUTHORIZED. The total number of
shares of all classes of capital stock which the Corporation shall have
authority to issue is thirty-five million (35,000,000) shares, of which ten
million (10,000,000) shares shall be preferred stock, par value one cent ($.01)
per share (the "Preferred Stock"), and twenty five million (25,000,000) shares
shall be common stock, par value one cent ($.01) per share (the "Common Stock").
The Preferred Stock and Common Stock are sometimes hereinafter collectively
referred to as the "Capital Stock."

                  4.2 DESIGNATIONS, POWERS, PREFERENCES, RIGHTS, QUALIFICATIONS,
LIMITATIONS AND RESTRICTIONS RELATING TO THE CAPITAL STOCK. The following is a
statement of the designations, powers, preferences and rights in respect of the
classes of the Capital Stock, and the qualifications, limitations or
restrictions thereof, and of the authority with respect thereto expressly vested
in the Board of the Corporation.


                                       -1-
 

<PAGE>



                  (a) PREFERRED STOCK. The Preferred Stock may be issued from
time to time in one or more series, the number of shares and any designation of
each series and the powers, preferences and rights of the shares of each series,
and the qualifications, limitations or restrictions thereof, to be as stated and
expressed in a resolution or resolutions providing for the issue of such series
adopted by the Board of Directors, subject to the limitations prescribed by law.
The Board of Directors in any such resolution or resolutions is expressly
authorized to state for each such series:

                  (i) the voting powers, if any, of the holders of stock of such
         series in addition to any voting rights affirmatively required by law;

                  (ii) the rights of stockholders in respect of dividends,
         including, without limitation, the rate or rates per annum and the time
         or times at which (or the formula or other method pursuant to which
         such rate or rates and such time or times may be determined) and
         conditions upon which the holders of stock of such series shall be
         entitled to receive dividends and other distributions, and whether any
         such dividends shall be cumulative or noncumulative and, if cumulative,
         the terms upon which such dividends shall be cumulative;

                  (iii) whether the stock of each such series shall be
         redeemable by the Corporation at the option of the Corporation or the
         holder thereof or upon the occurrence of a specified event or events,
         and, if redeemable, the terms and conditions upon which the stock of
         such series may be redeemed;

                  (iv) the amount payable and the rights or preferences to which
         the holders of the stock of such series shall be entitled upon any
         voluntary or involuntary liquidation, dissolution or winding up of the
         Corporation;

                  (v) the terms, if any, upon which shares of stock of such
         series shall be convertible into, or exchangeable for, shares of stock
         of any other class or classes or of any other series of the same or any
         other class or classes, including the price or prices or the rate or
         rates of conversion or exchange and the terms of adjustment, if any;
         and

                  (vi) any other designations, preferences, and relative,
         participating, optional or other special rights, and qualifications,
         limitations or restrictions thereof, so far as they are not
         inconsistent with the provisions of this Restated Certificate of
         Incorporation and to the full extent now or hereafter permitted by the
         laws of the State of Delaware.

                  All shares of the Preferred Stock of any one series shall be
identical to each other in all respects, except that shares of any one series
issued at different times may differ as to the dates from which dividends
thereon, if cumulative, shall be cumulative.

                  Subject to any limitations or restrictions stated in the
resolution or resolutions of the Board of Directors originally fixing the number
of shares constituting a series, the Board of

                                       -2-
 

<PAGE>



Directors may by resolution or resolutions likewise adopted increase (but not
above the total number of authorized shares of that class) or decrease (but not
below the number of shares of the series then outstanding) the number of shares
of the series subsequent to the issue of shares of that series; and if the
number of shares of any series shall be so decreased, the shares constituting
the decrease shall resume that status that they had prior to the adoption of the
resolution originally fixing the number of shares constituting such series.

                  (b) COMMON STOCK. All shares of Common Stock shall be
identical to each other in every respect. The shares of Common Stock shall
entitle the holders thereof to one vote for each share on all matters on which
stockholders have the right to vote. The holders of Common Stock shall not be
permitted to cumulate their votes for the election of directors.

                  Subject to the preferences, privileges and powers with respect
to each class or series of Capital Stock having any priority over the Common
Stock, and the qualifications, limitations or restrictions thereof, the holders
of the Common Stock shall have and possess all rights pertaining to the Common
Stock. No holder of shares of Common Stock shall be entitled as such, as a
matter of preemptive right, to subscribe for, purchase or otherwise acquire any
part of any new or additional issue of stock of any class or series whatsoever
of the Corporation, or of securities convertible into stock of any class or
series whatsoever of the Corporation, or of any warrants or other instruments
evidencing rights or options to subscribe for, purchase or otherwise acquire
such stock or securities, whether now or hereafter authorized or whether issued
for cash or other consideration or by way of dividend.

                  5.       BOARD OF DIRECTORS.

                  5.1 NUMBER OF DIRECTORS. The total number of directors which
shall constitute the whole board of directors shall be determined in accordance
with the By-laws of the Corporation, but shall not be less than two (2) nor more
than nine (9).

                  5.2 WRITTEN BALLOT. Unless and to the extent that the By-Laws
so provide, elections of directors need not be by written ballot.

                  5.3 AMENDMENT OF BY-LAWS. The Board of Directors of the
Corporation, acting by majority vote, may alter, amend or repeal the By-Laws of
the Corporation.

                  6. LIMITATION OF DIRECTOR LIABILITY. Except as otherwise
provided by the Delaware General Corporation Law as the same exists or may
hereafter be amended, no director of the Corporation shall be personally liable
to the Corporation or its stockholders for monetary damages for breach of
fiduciary duty as a director. Any repeal or modification of this Section 6 by
the stockholders of the Corporation shall not adversely affect any right or
protection of a director of the Corporation existing at the time of such repeal
or modification.
                  IN WITNESS WHEREOF, the Corporation has caused this Restated
Certificate of Incorporation to be duly executed by ______________________, its
Chief Executive Officer, and attested to by ______________, its Secretary, this
___th day of ___, 199_.

                                       -3-
 

<PAGE>


                                                   IPC INFORMATION SYSTEMS, INC.



                                                   By:_________________________
                                                        Name:
                                                        Title:




Attest:


___________________________
Name:
Title:


                                       -4-

<PAGE>
                                                                     EXHIBIT A-2

                      RESTATED CERTIFICATE OF INCORPORATION

                                       OF

                          IPC INFORMATION SYSTEMS, INC.



                  IPC Information Systems, Inc., a Delaware corporation
incorporated August 29, 1985 under the name IPC Merger Corporation, does hereby
amend and restate its certificate of incorporation to read in its entirety as
set forth below:

                  1. NAME.  The name of the corporation is IPC Information 
Systems, Inc. (the "Corporation").

                  2. REGISTERED OFFICE AND AGENT. The address of the
Corporation's registered office in the State of Delaware is Corporation Trust
Center, 1209 Orange Street, in the City of Wilmington, County of New Castle. The
name of the Corporation's registered agent at such address is The Corporation
Trust Company.

                  3. PURPOSE. The nature of the business and purpose or purposes
to be conducted or promoted by the Corporation is to engage in any lawful act or
activity for which corporations may be organized under the General Corporation
Law of the State of Delaware.

                  4.       CAPITAL STOCK.

                  4.1 SHARES, CLASSES AND SERIES AUTHORIZED. The total number of
shares of all classes of capital stock which the Corporation shall have
authority to issue is thirty-five million (35,000,000) shares, of which ten
million (10,000,000) shares shall be preferred stock, par value one cent ($.01)
per share (the "Preferred Stock"), and twenty five million (25,000,000) shares
shall be common stock, par value one cent ($.01) per share (the "Common Stock").
The Preferred Stock and Common Stock are sometimes hereinafter collectively
referred to as the "Capital Stock."

                  4.2 DESIGNATIONS, POWERS, PREFERENCES, RIGHTS, QUALIFICATIONS,
LIMITATIONS AND RESTRICTIONS RELATING TO THE CAPITAL STOCK. The following is a
statement of the designations, powers, preferences and rights in respect of the
classes of the Capital Stock, and the qualifications, limitations or
restrictions thereof, and of the authority with respect thereto expressly vested
in the Board of the Corporation.

                  (a) PREFERRED STOCK. The Preferred Stock may be issued from
time to time in one or more series, the number of shares and any designation of
each series and the powers,


<PAGE>



preferences and rights of the shares of each series, and the qualifications,
limitations or restrictions thereof, to be as stated and expressed in a
resolution or resolutions providing for the issue of such series adopted by the
Board of Directors, subject to the limitations prescribed by law. The Board of
Directors in any such resolution or resolutions is expressly authorized to state
for each such series:

                  (i) the voting powers, if any, of the holders of stock of such
         series in addition to any voting rights affirmatively required by law;

                  (ii) the rights of stockholders in respect of dividends,
         including, without limitation, the rate or rates per annum and the time
         or times at which (or the formula or other method pursuant to which
         such rate or rates and such time or times may be determined) and
         conditions upon which the holders of stock of such series shall be
         entitled to receive dividends and other distributions, and whether any
         such dividends shall be cumulative or noncumulative and, if cumulative,
         the terms upon which such dividends shall be cumulative;

                  (iii) whether the stock of each such series shall be
         redeemable by the Corporation at the option of the Corporation or the
         holder thereof or upon the occurrence of a specified event or events,
         and, if redeemable, the terms and conditions upon which the stock of
         such series may be redeemed;

                  (iv) the amount payable and the rights or preferences to which
         the holders of the stock of such series shall be entitled upon any
         voluntary or involuntary liquidation, dissolution or winding up of the
         Corporation;

                  (v) the terms, if any, upon which shares of stock of such
         series shall be convertible into, or exchangeable for, shares of stock
         of any other class or classes or of any other series of the same or any
         other class or classes, including the price or prices or the rate or
         rates of conversion or exchange and the terms of adjustment, if any;
         and

                  (vi) any other designations, preferences, and relative,
         participating, optional or other special rights, and qualifications,
         limitations or restrictions thereof, so far as they are not
         inconsistent with the provisions of this Restated Certificate of
         Incorporation and to the full extent now or hereafter permitted by the
         laws of the State of Delaware.

                  All shares of the Preferred Stock of any one series shall be
identical to each other in all respects, except that shares of any one series
issued at different times may differ as to the dates from which dividends
thereon, if cumulative, shall be cumulative.

                  Subject to any limitations or restrictions stated in the
resolution or resolutions of the Board of Directors originally fixing the number
of shares constituting a series, the Board of Directors may by resolution or
resolutions likewise adopted increase (but not above the total

                                       -2-


<PAGE>



number of authorized shares of that class) or decrease (but not below the number
of shares of the series then outstanding) the number of shares of the series
subsequent to the issue of shares of that series; and if the number of shares of
any series shall be so decreased, the shares constituting the decrease shall
resume that status that they had prior to the adoption of the resolution
originally fixing the number of shares constituting such series.

                  (b) COMMON STOCK. All shares of Common Stock shall be
identical to each other in every respect. The shares of Common Stock shall
entitle the holders thereof to one vote for each share on all matters on which
stockholders have the right to vote. The holders of Common Stock shall not be
permitted to cumulate their votes for the election of directors.

                  Subject to the preferences, privileges and powers with respect
to each class or series of Capital Stock having any priority over the Common
Stock, and the qualifications, limitations or restrictions thereof, the holders
of the Common Stock shall have and possess all rights pertaining to the Capital
Stock.

                  No holder of shares of Common Stock shall be entitled as such,
as a matter of preemptive right, to subscribe for, purchase or otherwise acquire
any part of any new or additional issue of stock of any class or series
whatsoever of the Corporation, or of securities convertible into stock of any
class or series whatsoever of the Corporation, or of any warrants or other
instruments evidencing rights or options to subscribe for, purchase or otherwise
acquire such stock or securities, whether now or hereafter authorized or whether
issued for cash or other consideration or by way of dividend.

                  5.       BOARD OF DIRECTORS.

                  5.1 NUMBER OF DIRECTORS. The total number of directors which
shall constitute the whole board of directors shall be determined in accordance
with the By-laws of the Corporation, but shall not be less than two (2) nor more
than nine (9).

                  5.2 CLASSIFICATION OF BOARD. Subject to the rights of any
holders of any series of Preferred Stock that may be issued by the Corporation
pursuant to a resolution or resolutions of the Board of Directors providing for
such issuance, the directors of the Corporation shall be divided into three
classes with respect to the term of office, each class to contain, as near as
may be possible, one-third of the whole number of the Board, with the terms of
office of one class expiring each successive year. At each annual meeting of
stockholders, the successors to the class of directors whose term expires at
that time shall be elected by the stockholders to serve until the annual meeting
of stockholders held three years next following and until their successors shall
be elected and qualified.

                  In the event of any intervening changes in the authorized
number of directors, the Board of Directors shall designate the class or classes
to which the increases or decreases in directorships shall be apportioned and
may designate one or more directorships as directorships

                                       -3-


<PAGE>



of another class in order more nearly to achieve equality of number of directors
among the classes; provided, however, that no such apportionment or
redesignation shall shorten the term of any incumbent director.

                  Unless and to the extent that the By-laws so provide,
elections of directors need not be by written ballot.

                  5.3 VACANCIES. Subject to the limitations prescribed by law
and this Restated Certificate of Incorporation, all vacancies in the office of
director, including vacancies created by newly created directorships resulting
from an increase in the authorized number of directors, may be filled only by a
vote of a majority of the directors then holding office, although less than a
quorum, or by a sole remaining director; and any director so elected shall serve
for the remainder of the full term of the class of directors in which the new
directorship was created or the vacancy occurred and until such director's
successor is duly elected and shall qualify or until such director's earlier
resignation or removal.

                  5.4 AMENDMENT TO THIS PARAGRAPH. In addition to any
requirements of law or of any other provisions of this Restated Certificate of
Incorporation, the affirmative vote of the holders of not less than eighty
percent (80%) of the total number of votes eligible to be cast by the holders of
all outstanding shares of Capital Stock entitled to vote thereon shall be
required to amend, alter, rescind or repeal any provision of this Paragraph 5.

                  6.       LIMITATION OF DIRECTOR LIABILITY.

                  6.1 LIMITATION. A director of the Corporation shall not be
personally liable to the Corporation or its stockholders for monetary damages
for breach of fiduciary duty as a director, except to the extent such exemption
from liability or limitation thereof is expressly prohibited by the General
Corporation Law of the State of Delaware as the same exists or may hereafter be
amended.

                  6.2 NO RETROACTIVE CHANGES. Any amendment, termination or
repeal of this Paragraph 6 or any provisions hereof shall not adversely affect
or diminish in any way any right or protection of a director of the Corporation
existing with respect to any act or omission occurring prior to the time of the
final adoption of such amendment, termination or repeal.

                  6.3 AMENDMENT OF THIS PARAGRAPH. In addition to any
requirements of law or of any other provisions of this Restated Certificate of
Incorporation, the affirmative vote of the holders of not less than seventy
percent (70%) of the total number of votes eligible to be cast by the holders of
all outstanding shares of Capital Stock entitled to vote thereon shall be
required to amend, alter, rescind or repeal any provision of this Paragraph 6.


                                       -4-


<PAGE>



                  7.       AMENDMENTS.

                  7.1 AMENDMENTS OF CERTIFICATE OF INCORPORATION. In addition to
any affirmative vote required by applicable law and any voting rights granted to
or held by holders of Preferred Stock, any alteration, amendment, repeal or
rescission (collectively, any "Change") of any provision of this Restated
Certificate of Incorporation must be approved by a majority of the directors of
the Corporation then in office and by the affirmative vote of the holders of a
majority (or such greater proportion as may otherwise be required pursuant to
any specific provision of this Restated Certificate of Incorporation) of the
total votes eligible to be cast by the holders of all outstanding shares of
Capital Stock entitled to vote thereon.

                  Except as may otherwise be provided in this Restated
Certificate of Incorporation, the Corporation reserves the right at any time,
and from time to time, to amend, alter, change or repeal any provision contained
in this Restated Certificate of Incorporation, and to add or insert herein any
other provisions authorized by the laws of the State of Delaware at the time in
force, in the manner now or hereafter prescribed by law, and all rights,
preferences and privileges of any nature conferred upon stockholders, directors
or any other persons whomsoever by and pursuant to this Restated Certificate of
Incorporation in its present form or as hereafter amended are granted subject to
the provisions contained in this Paragraph 7.1.

                  7.2 AMENDMENTS OF BY-LAWS. In furtherance and not in
limitation of the powers conferred by statute, the Board of Directors of the
Corporation is expressly authorized to make, alter, amend, rescind or repeal
from time to time any of the By-laws of the Corporation in accordance with the
terms thereof; provided, however, that any By-law made by the Board may be
altered, amended, rescinded, or repealed by the holders of a majority of the
shares of Capital Stock entitled to vote thereon at any annual meeting or at any
special meeting called for that purpose. Notwithstanding the foregoing, any
provision of the By-laws that contains a supermajority voting requirement shall
only be altered, amended, rescinded, or repealed by a vote of the Board or
holders of shares of Capital Stock entitled to vote thereon that is not less
than the supermajority specified in such provision.

                  The foregoing Restated Certificate of Incorporation was duly
adopted in accordance with the provisions of Sections 228, 242 and 245 of the
General Corporation Law of the State of Delaware.



                                       -5-


<PAGE>


                  IN WITNESS WHEREOF, IPC Information Systems, Inc. has caused
this Restated Certificate of Incorporation to be duly executed by Richard P.
Kleinknecht, its Chairman and Chief Executive Officer, and attested to by Daniel
Utevsky, its Secretary, this 9th day of May, 1994.

                                           IPC INFORMATION SYSTEMS, INC.



                                           By:      /S/ RICHARD P. KLEINKNECHT
                                                  -----------------------------
                                                Richard P. Kleinknecht, Chairman
                                                   and Chief Executive Officer


Attest:


/S/ DANIEL UTEVSKY
- ----------------------------

Daniel Utevsky, Secretary



                                       -6-

<PAGE>
                                                                       EXHIBIT B

                              AMENDED AND RESTATED
                                     BY-LAWS
                                       OF
                          IPC INFORMATION SYSTEMS, INC.

                                    ARTICLE I
                                  STOCKHOLDERS
                                  ------------

             SECTION 1. ANNUAL MEETING. The annual meeting of the stockholders
of the Corporation shall be held on such date, at such time and at such place
within or without the State of Delaware as may be designated by the Board of
Directors, for the purpose of electing Directors and for the transaction of such
other business as may be properly brought before the meeting.

             SECTION 2. SPECIAL MEETINGS. Except as otherwise provided in the
Certificate of Incorporation, a special meeting of the stockholders of the
Corporation may be called at any time by the Board of Directors or the Chairman
of the Board. Any special meeting of the stockholders shall be held on such
date, at such time and at such place within or without the State of Delaware as
 the Board of Directors or the officer calling the meeting may designate. At a
special meeting of the stockholders, no business shall be transacted and no
corporate action shall be taken other than that stated in the notice of the
meeting unless all of the stockholders are present in person or



<PAGE>



by proxy, in which case any and all business may be transacted at the meeting
even though the meeting is held without notice.

             SECTION 3. NOTICE OF MEETINGS. Except as otherwise provided in
these By-Laws or by law, a written notice of each meeting of the stockholders
shall be given not less than ten (10) nor more than sixty (60) days before the
date of the meeting to each stockholder of the Corporation entitled to vote at
such meeting at his or her address as it appears on the records of the
Corporation. The notice shall state the place, date and hour of the meeting and,
in the case of a special meeting, the purpose or purposes for which the meeting
is called.

             SECTION 4. QUORUM. At any meeting of the stockholders, the holders
of a majority in number of the total outstanding shares of stock of the
Corporation entitled to vote at such meeting, present in person or represented
by proxy, shall constitute a quorum of the stockholders for all purposes, unless
the representation of a larger number of shares shall be required by law, by the
Certificate of Incorporation or by these By-Laws, in which case the
representation of the number of shares so required shall constitute a quorum;
provided that at any meeting of the stockholders at which the holders of any
class of stock of the Corporation shall be entitled to vote separately as a
class, the holders of a majority in number of the total outstanding shares of
such class, present in person or represented by proxy, shall constitute a quorum
for purposes of such class vote unless the representation of a larger number of
shares of such class shall be required by law, by the Certificate of
Incorporation or by these By-Laws.



                                       -2-

<PAGE>



             SECTION 5. ADJOURNED MEETINGS. Whether or not a quorum shall be
present in person or represented at any meeting of the stockholders, the holders
of a majority in number of the shares of stock of the Corporation present in
person or represented by proxy and entitled to vote at such meeting may adjourn
from time to time; provided, however, that if the holders of any class of stock
of the Corporation are entitled to vote separately as a class upon any matter at
such meeting, any adjournment of the meeting in respect of action by such class
upon such matter shall be determined by the holders of a majority of the shares
of such class present in person or represented by proxy and entitled to vote at
such meeting. When a meeting is adjourned to another time or place, notice need
not be given of the adjourned meeting if the time and place thereof are
announced at the meeting at which the adjournment is taken. At the adjourned
meeting, the stockholders, or the holders of any class of stock entitled to vote
separately as a class, as the case may be, may transact any business which might
have been transacted by them at the original meeting. If the adjournment is for
more than thirty days, or if after the adjournment a new record date is fixed
for the adjourned meeting, a notice of the adjourned meeting shall be given to
each stockholder of record entitled to vote at the adjourned meeting.

             SECTION 6. ORGANIZATION. The Chairman of the Board, or, in his
absence, the Vice-Chairman of the Board, or, in their absence, the Chief
Executive Officer, or, in the absence of the Chairman of the Board, the
Vice-Chairman of the Board and the Chief Executive Officer, the President, or,
in the absence of the Chairman of the Board, the Vice-Chairman of the Board, the
Chief Executive Officer and the President, a Vice President shall call all
meetings of the stockholders to order, and shall act as Chairman of such
meetings. In the absence of the


                                       -3-

<PAGE>



Chairman of the Board, the Vice-Chairman of the Board, the Chief Executive
Officer, the President and all of the Vice Presidents, the holders of a majority
in number of the shares of stock of the Corporation present in person or
represented by proxy and entitled to vote at such meeting shall elect a
Chairman.

             The Secretary of the Corporation shall act as Secretary of all
meetings of the stockholders; but in the absence of the Secretary, the Chairman
may appoint any person to act as Secretary of the meeting. It shall be the duty
of the Secretary to prepare and make, at least ten days before every meeting of
stockholders, a complete list of stockholders entitled to vote at such meeting,
arranged in alphabetical order and showing the address of each stockholder and
the number of shares registered in the name of each stockholder. Such list shall
be open, either at a place within the city where the meeting is to be held,
which place shall be specified in the notice of the meeting or, if not so
specified, at the place where the meeting is to be held, for the ten days next
preceding the meeting, to the examination of any stockholder, for any purpose
germane to the meeting, during ordinary business hours, and shall be produced
and kept at the time and place of the meeting during the whole time thereof and
subject to the inspection of any stockholder who may be present.

             SECTION 7. VOTING. Except as otherwise provided in the Certificate
of Incorporation or by law, each stockholder shall be entitled to one vote for
each share of the capital stock of the Corporation registered in the name of
such stockholder upon the books of the Corporation. Each stockholder entitled to
vote at a meeting of stockholders or to express consent or dissent to


                                       -4-

<PAGE>



corporate action in writing without a meeting may authorize another person or
persons to act for him or her by proxy, but no such proxy shall be voted or
acted upon after three years from its date, unless the proxy provides for a
longer period. When directed by the presiding officer or upon the demand of any
stockholder, the vote upon any matter before a meeting of stockholders shall be
by ballot. Except as otherwise provided by law or by the Certificate of
Incorporation, Directors shall be elected by a plurality of the votes cast at a
meeting of stockholders by the stockholders entitled to vote in the election
and, whenever any corporate action, other than the election of Directors is to
be taken, it shall be authorized by a majority of the votes cast at a meeting of
stockholders by the stockholders entitled to vote thereon.

             Shares of the capital stock of the Corporation belonging to the
Corporation or to another corporation, if a majority of the shares entitled to
vote in the election of directors of such other corporation is held, directly or
indirectly, by the Corporation, shall neither be entitled to vote nor be counted
for quorum purposes.

             SECTION 8. INSPECTORS. When required by law or directed by the
presiding officer or upon the demand of any stockholder entitled to vote, but
not otherwise, the polls shall be opened and closed, the proxies and ballots
shall be received and taken in charge, and all questions touching the
qualification of voters, the validity of proxies and the acceptance or rejection
of votes shall be decided at any meeting of the stockholders by one or more
Inspectors who may be appointed by the Board of Directors before the meeting, or
if not so appointed, shall be appointed by the presiding officer at the meeting.
If any person so appointed fails to appear or


                                       -5-

<PAGE>



act, the vacancy may be filled by appointment in like manner. Each inspector,
before entering upon the discharge of his duties, shall take and sign an oath
faithfully to execute the duties of inspector with strict impartiality and
according to the best of his ability.

             SECTION 9. CONSENT OF STOCKHOLDERS IN LIEU OF MEETING. Any action
required to be taken at any annual or special meeting of stockholders of the
Corporation, or any action which may be taken at any annual or special meeting
of the stockholders, may be taken without a meeting, without prior notice and
without a vote, if a consent or consents in writing, setting forth the action so
taken, shall be signed by the holders of outstanding stock having not less than
the minimum number of votes that would be necessary to authorize or take such
action at a meeting at which all shares entitled to vote thereon were present
and voted and shall be delivered to the Corporation by delivery to its
registered office in Delaware, its principal place of business, or an officer or
agent of the Corporation having custody of the book in which proceedings of
meetings of stockholders are recorded. Delivery made to the Corporation's
registered office shall be made by hand or by certified or registered mail,
return receipt requested.

             Every written consent shall bear the date of signature of each
stockholder who signs the consent and no written consent shall be effective to
take the corporate action referred to therein unless, within sixty (60) days of
the date the earliest dated consent is delivered to the Corporation, a written
consent or consents signed by a sufficient number of holders to take action are
delivered to the Corporation in the manner prescribed in the first paragraph of
this Section.



                                       -6-

<PAGE>



                                   ARTICLE II
                                   ----------
                               BOARD OF DIRECTORS
                               ------------------

             SECTION 1. NUMBER AND TERM OF OFFICE. The business and affairs of
the Corporation shall be managed by or under the direction of a Board of
Directors, none of whom need be stockholders of the Corporation. The number of
Directors constituting the Board of Directors shall be fixed from time to time
by resolution passed by a majority of the Board of Directors. The Directors
shall, except as hereinafter otherwise provided for filling vacancies, be
elected at the annual meeting of stockholders, and shall hold office until their
respective successors are elected and qualified or until their earlier
resignation or removal.

             SECTION 2. REMOVAL, VACANCIES AND ADDITIONAL DIRECTORS. The
stockholders may, at any special meeting the notice of which shall state that it
is called for that purpose, remove, with or without cause, any Director and fill
the vacancy; provided that whenever any Director shall have been elected by the
holders of any class of stock of the Corporation voting separately as a class
under the provisions of the Certificate of Incorporation, such Director may be
removed and the vacancy filled only by the holders of that class of stock voting
separately as a class. Vacancies caused by any such removal and not filled by
the stockholders at the meeting at which such removal shall have been made, or
any vacancy caused by the death or resignation of any Director or for any other
reason, and any newly created directorship resulting from any increase in the
authorized number of Directors, may be filled by the affirmative vote of a
majority of the


                                       -7-

<PAGE>



Directors then in office, although less than a quorum, and any Director so
elected to fill any such vacancy or newly created directorship shall hold office
until his or her successor is elected and qualified or until his or her earlier
resignation or removal.

             When one or more Directors shall resign effective at a future date,
a majority of the Directors then in office, including those who have so
resigned, shall have power to fill such vacancy or vacancies, the vote thereon
to take effect when such resignation or resignations shall become effective, and
each Director so chosen shall hold office as herein provided in connection with
the filling of other vacancies.

             SECTION 3. PLACE OF MEETING. The Board of Directors may hold its
meetings in such place or places in the State of Delaware or outside the State
of Delaware as the Board from time to time shall determine.

             SECTION 4. REGULAR MEETINGS. Regular meetings of the Board of
Directors shall be held at such times and places as the Board from time to time
by resolution shall determine. No further notice shall be required for any
regular meeting of the Board of Directors; but a copy of every resolution fixing
or changing the time or place of regular meetings shall be mailed to every
Director at least five days before the first meeting held in pursuance thereof.



                                       -8-

<PAGE>



              SECTION 5. SPECIAL MEETINGS. Special meetings of the Board of
Directors shall be held whenever called by direction of the Chairman of the
Board or by any two of the Directors then in office.

             Notice of the day, hour and place of holding of each special
meeting shall be given by mailing the same at least two days before the meeting
or by causing the same to be transmitted by facsimile, telegram or telephone at
least one day before the meeting to each Director. Unless otherwise indicated in
the notice thereof, any and all business other than an amendment of these
By-Laws may be transacted at any special meeting, and an amendment of these
By-Laws may be acted upon if the notice of the meeting shall have stated that
the amendment of these By-Laws is one of the purposes of the meeting. At any
meeting at which every Director shall be present, even though without any
notice, any business may be transacted, including the amendment of these
By-Laws.

             SECTION 6. QUORUM. Subject to the provisions of Section 2 of this
Article II, a majority of the members of the Board of Directors in office (but
in no case less than one-third of the total number of Directors nor less than
two Directors) shall constitute a quorum for the transaction of business and the
vote of the majority of the Directors present at any meeting of the Board of
Directors at which a quorum is present shall be the act of the Board of
Directors. If at any meeting of the Board there is less than a quorum present, a
majority of those present may adjourn the meeting from time to time.



                                       -9-

<PAGE>



             SECTION 7. ORGANIZATION. The Chairman of the Board shall preside at
all meetings of the Board of Directors. In the absence of the Chairman of the
Board, a Chairman shall be elected from the Directors present. The Secretary of
the Corporation shall act as Secretary of all meetings of the Directors; but in
the absence of the Secretary, the Chairman may appoint any person to act as
Secretary of the meeting.

             SECTION 8. COMMITTEES. The Board of Directors may designate one or
more committees including, without limitation, compensation and audit
committees, each committee to consist of one or more of the Directors of the
Corporation. The Board may designate one or more Directors as alternate members
of any committee, who may replace any absent or disqualified member at any
meeting of the committee. In the absence or disqualification of a member of a
committee, the member or members thereof present at any meeting and not
disqualified from voting, whether or not such member or members constitute a
quorum, may unanimously appoint another member of the Board of Directors to act
at the meeting in the place of any such absent or disqualified member. Any such
committee, to the extent provided in the resolution of the Board, shall have and
may exercise all the powers and authority of the Board of Directors in the
management of the business and the affairs of the Corporation, and may authorize
the seal of the Corporation to be affixed to all papers which may require it;
but no such committee shall have the power or authority in reference to
approving or adopting, or recommending to the stockholders, any action or matter
expressly required by law to be submitted to stockholders for approval, or
adopting, amending or repealing these By-laws.



                                      -10-

<PAGE>



             SECTION 9. CONFERENCE TELEPHONE MEETINGS. Unless otherwise
restricted by the Certificate of Incorporation or by these By-Laws, the members
of the Board of Directors or any committee designated by the Board, may
participate in a meeting of the Board or such committee, as the case may be, by
means of conference telephone or similar communications equipment by means of
which all persons participating in the meeting can hear each other, and such
participation shall constitute presence in person at such meeting.

             SECTION 10. CONSENT OF DIRECTORS OR COMMITTEE IN LIEU OF MEETING.
Unless otherwise restricted by the Certificate of Incorporation or by these
By-Laws, any action required or permitted to be taken at any meeting of the
Board Directors, or of any committee thereof, may be taken without a meeting if
all members of the Board or committee, as the case may be, consent thereto in
writing and the writing or writings are filed with the minutes of proceedings of
the Board or committee, as the case may be.

                                   ARTICLE III
                                   -----------
                                    OFFICERS
                                    --------

             SECTION 1. OFFICERS. The officers of the Corporation shall be a
Chairman of the Board, Vice-Chairman of the Board, Chief Executive Officer, a
President, one or more Vice Presidents, a Secretary and a Treasurer, and such
additional officers, if any, as shall be elected by the Board of Directors
pursuant to the provisions of Section 7 of this Article III. The Chairman of the
Board, the Vice-Chairman of the Board, the President, the Chief Executive
Officer, one or


                                      -11-

<PAGE>



more Vice Presidents, the Secretary and the Treasurer shall be elected by the
Board of Directors at its first meeting after each annual meeting of the
stockholders. The failure to hold such election shall not of itself terminate
the term of office of any officer. All officers shall hold office at the
pleasure of the Board of Directors. Any officer may resign at any time upon
written notice to the Corporation. Officers may, but need not, be Directors. Any
number of offices may be held by the same person.
             All officers, agents and employees shall be subject to removal,
with or without cause, at any time by the Board of Directors. The removal of an
officer without cause shall be without prejudice to his or her contract rights,
if any. The election or appointment of an officer shall not of itself create
contract rights. All agents and employees other than officers elected by the
Board of Directors shall also be subject to removal, with or without cause, at
any time by the officers appointing them.

             Any vacancy caused by the death, resignation or removal of any
officer, or otherwise, may be filled by the Board of Directors, and any officer
so elected shall hold office at the pleasure of the Board of Directors.

             In addition to the powers and duties of the officers of the
Corporation as set forth in these By-Laws, the officers shall have such
authority and shall perform such duties as from time to time may be determined
by the Board of Directors.



                                      -12-

<PAGE>



             SECTION 2. POWERS AND DUTIES OF THE CHAIRMAN OF THE BOARD. The
Chairman of the Board shall preside at all meetings of the stockholders and at
all meetings of the Board of Directors and shall have such other powers and
perform such other duties as may from time to time be assigned by these By-Laws
or by the Board of Directors.

             SECTION 3. POWERS AND DUTIES OF THE VICE-CHAIRMAN OF THE BOARD. The
Vice-Chairman of the Board shall have all powers and shall perform all duties
incident to the office of Vice-Chairman of the Board and shall have such other
powers and perform such other duties as may from time to time be assigned by
these By-Laws or by the Board of Directors or the Chairman of the Board.

             SECTION 4. POWERS AND DUTIES OF THE CHIEF EXECUTIVE OFFICER. The
Chief Executive Officer shall be the chief executive officer of the Corporation,
have general charge and control of all the Corporation's business and affairs
and, subject to the control of the Board of Directors, shall have all powers and
shall perform all duties incident to the office of Chief Executive Officer. In
the absence of the Chairman of the Board, the Chief Executive Officer shall
preside at all meetings of the stockholders and at all meetings of the Board of
Directors. In addition, the Chief Executive Officer shall have such other powers
and perform such other duties as may from time to time be assigned by these
By-Laws or by the Board of Directors.

              SECTION 5. POWERS AND DUTIES OF THE PRESIDENT. The President
shall, subject to the control of the Board of Directors, have all powers and
shall perform all duties incident to the


                                      -13-

<PAGE>



office of President. In the absence of the Chairman of the Board and the Chief
Executive Officer, the President shall preside at all meetings of the
stockholders and at all meetings of the Board of Directors. In the absence of
the Chief Executive Officer, the President shall be the chief executive officer
of the Corporation, have general charge and control of all the Corporation's
business and affairs and shall have such other powers and perform such other
duties as may from time to time be assigned by these By-Laws or by the Board of
Directors.

              SECTION 6. POWERS AND DUTIES OF THE VICE PRESIDENTS. Each Vice
President shall have all powers and shall perform all duties incident to the
office of Vice President and shall have such other powers and perform such other
duties as may from time to time be assigned by these By-Laws or by the Board of
Directors, the Chairman of the Board, the Chief Executive Officer or the
President.

             SECTION 7. POWERS AND DUTIES OF THE SECRETARY. The Secretary shall
keep the minutes of all meetings of the Board of Directors and the minutes of
all meetings of the stockholders in books provided for that purpose. The
Secretary shall attend to the giving or serving of all notices of the
Corporation; shall have custody of the corporate seal of the Corporation and
shall affix the same to such documents and other papers as the Board of
Directors, the Chairman of the Board, the Vice-Chairman of the Board, the Chief
Executive Officer or the President shall authorize and direct; shall have charge
of the stock certificate books, transfer books and stock ledgers and such other
books and papers as the Board of Directors, the Chairman of the Board, the
Vice-Chairman of the Board, the Chief Executive


                                                       -14-

<PAGE>



Officer or the President shall direct, all of which shall at all reasonable
times be open to the examination of any Director, upon application, at the
office of the Corporation during business hours. The Secretary shall have all
powers and shall perform all duties incident to the office of Secretary and
shall also have such other powers and shall perform such other duties as may
from time to time be assigned by these By-Laws or by the Board of Directors, the
Chairman of the Board, the Vice-Chairman of the Board, the Chief Executive
Officer or the President.

             SECTION 8. POWERS AND DUTIES OF THE TREASURER. The Treasurer shall
have custody of, and when proper shall pay out, disburse or otherwise dispose
of, all funds and securities of the Corporation. The Treasurer may endorse on
behalf of the Corporation for collection checks, notes and other obligations and
shall deposit the same to the credit of the Corporation in such bank or banks or
depositary or depositaries as the Board of Directors may designate; shall sign
all receipts and vouchers for payments made to the Corporation; shall enter or
cause to be entered regularly in the books of the Corporation kept for the
purpose full and accurate accounts of all moneys received or paid or otherwise
disposed of and whenever required by the Board of Directors, the Chairman of the
Board, the Vice-Chairman of the Board, the Chief Executive Officer or the
President shall render statements of such accounts. The Treasurer shall, at all
reasonable times, exhibit the books and accounts to any Director of the
Corporation upon application at the office of the Corporation during business
hours; and shall have all powers and shall perform all duties incident of the
office of Treasurer and shall also have such other powers and shall perform such
other duties as may from time to time be assigned by these By-Laws or by


                                      -15-

<PAGE>



the Board of Directors, the Chairman of the Board, the Vice-Chaiman of the
Board, the Chief Executive Officer or the President.

             SECTION 9. ADDITIONAL OFFICERS. The Board of Directors may from
time to time elect such other officers (who may but need not be Directors),
including a Controller, Assistant Treasurers, Assistant Secretaries and
Assistant Controllers, as the Board may deem advisable and such officers shall
have such authority and shall perform such duties as may from time to time be
assigned by the Board of Directors, the Chairman of the Board, the Vice-Chairman
of the Board, the Chief Executive Officer or the President.

             The Board of Directors may from time to time by resolution delegate
to any Assistant Treasurer or Assistant Treasurers any of the powers or duties
herein assigned to the Treasurer; and may similarly delegate to any Assistant
Secretary or Assistant Secretaries any of the powers or duties herein assigned
to the Secretary.

             SECTION 10. GIVING OF BOND BY OFFICERS. All officers of the
Corporation, if required to do so by the Board of Directors, shall furnish bonds
to the Corporation for the faithful performance of their duties, in such
penalties and with such conditions and security as the Board shall require.

              SECTION 11. VOTING UPON STOCKS. Unless otherwise ordered by the
Board of Directors, the Chairman of the Board, the Vice-Chairman of the Board,
the Chief Executive


                                      -16-

<PAGE>



Officer, the President or any Vice President shall have full power and authority
on behalf of the Corporation to attend and to act and to vote, or in the name of
the Corporation to execute proxies to vote, at any meeting of stockholders of
any corporation in which the Corporation may hold stock, and at any such meeting
shall possess and may exercise, in person or by proxy, any and all rights,
powers and privileges incident to the ownership of such stock. The Board of
Directors may from time to time, by resolution, confer like powers upon any
other person or persons.

             SECTION 12. COMPENSATION OF OFFICERS. The officers of the
Corporation shall be entitled to receive such compensation for their services as
shall from time to time be determined by the Board of Directors.

                                   ARTICLE IV
                                   ----------
                    INDEMNIFICATION OF DIRECTORS AND OFFICERS
                    -----------------------------------------

             Section 1. RIGHT TO INDEMNIFICATION. Each person who was or is made
a party or is threatened to be made a party to or is otherwise involved in any
action, suit or proceeding, whether civil, criminal, administrative or
investigative (hereinafter, a "Proceeding"), by reason of the fact that he or
she is or was a director or officer of the Corporation or is or was serving at
the request of the Corporation as a director, officer, employee or agent of
another corporation or of a partnership, joint venture, trust or other
enterprise, including service with respect to an employee benefit plan
(hereinafter, an "Indemnitee"), whether the basis of such Proceeding is alleged
action in an official capacity as a director, officer, employee or agent or in
any other capacity


                                      -17-

<PAGE>



while serving as a director, officer, employee or agent shall be indemnified and
held harmless by the Corporation to the fullest extent authorized by the
Delaware General Corporation Law, as the same exists or may hereafter be amended
(but, in the case of any such amendment, only to the extent that such amendment
permits the Corporation to provide broader indemnification rights than permitted
prior thereto), against all expense, liability and loss (including attorneys'
fees, judgments, fines, ERISA excise taxes or penalties and amounts paid in
settlement) reasonably incurred or suffered by such Indemnitee in connection
therewith and such indemnification shall continue as to an Indemnitee who has
ceased to be a director, officer, employee or agent and shall inure to the
benefit of the Indemnitee's heirs, executors and administrators; PROVIDED,
HOWEVER, that, except as provided in Section 3 of this Article IV with respect
to Proceedings to enforce rights to indemnification, the Corporation shall
indemnify any such Indemnitee in connection with a Proceeding (or part thereof)
initiated by such Indemnitee only if such Proceeding (or part thereof) was
authorized by the Board of Directors of the Corporation.
             Section 2. RIGHT TO ADVANCEMENT OF EXPENSES. The right to
indemnification conferred in Section 1 of this Article IV shall include the
right to be paid by the Corporation the expenses incurred in defending any
Proceeding for which such right to indemnification is applicable in advance of
its final disposition (hereinafter, an "Advancement of Expenses"); PROVIDED,
HOWEVER, that, if the Delaware General Corporation Law requires, an Advancement
of Expenses incurred by an Indemnitee in his or her capacity as a director or
officer (and not in any other capacity in which service was or is rendered by
such Indemnitee, including, without limitation, service to an employee benefit
plan) shall be made only upon delivery to the Corporation of an undertaking
(hereinafter, an "Undertaking"), by or on behalf of such Indemnitee, to repay
all amounts so


                                      -18-

<PAGE>



advanced if it shall ultimately be determined by final judicial decision from
which there is no further right to appeal (hereinafter, a "Final Adjudication")
that such Indemnitee is not entitled to be indemnified for such expenses under
this Section or otherwise.

             Section 3. RIGHT OF INDEMNITEE TO BRING SUIT. The rights to
indemnification and to the advancement of expenses conferred in Sections 1 or 2
of this Article IV shall be contract rights. If a claim under Sections 1 or 2 of
this Article IV is not paid in full by the Corporation within sixty days after a
written claim has been received by the Corporation, except in the case of a
claim for an Advancement of Expenses, in which case the applicable period shall
be twenty days, the Indemnitee may at any time thereafter bring suit against the
Corporation to recover the unpaid amount of the claim. If successful in whole or
in part in any such suit, or in a suit brought by the Corporation to recover an
Advancement of Expenses pursuant to the terms of an Undertaking, the Indemnitee
shall be entitled to be paid also the expense of prosecuting or defending such
suit. In (i) any suit brought by the Indemnitee to enforce a right to
indemnification hereunder (but not in a suit brought by the Indemnitee to
enforce a right to an Advancement of Expenses) it shall be a defense that, and
(ii) in any suit by the Corporation to recover an Advancement of Expenses
pursuant to the terms of an Undertaking the Corporation shall be entitled to
recover such expenses upon a Final Adjudication that, the Indemnitee has not met
any applicable standard for indemnification set forth in the Delaware General
Corporation Law. Neither the failure of the Corporation (including its Board of
Directors, independent legal counsel, or its stockholders) to have made a
determination prior to the commencement of such suit that indemnification of the
Indemnitee is proper in the circumstances because the Indemnitee has met the
applicable


                                      -19-

<PAGE>



standard of conduct set forth in the Delaware General Corporation Law, nor an
actual determination by the Corporation (including its Board of Directors,
independent legal counsel, or its stockholders) that the Indemnitee has not met
such applicable standard of conduct, shall create a presumption that the
Indemnitee has not met the applicable standard of conduct or, in the case of
such a suit brought by the Indemnitee, be a defense to such suit. In any suit
brought by the Indemnitee to enforce a right to indemnification or to an
Advancement of Expenses hereunder, or by the Corporation to recover an
Advancement of Expenses pursuant to the terms of an Undertaking, the burden of
proving that the Indemnitee is not entitled to be indemnified, or to such
Advancement of Expenses, under this Section or otherwise shall be on the
Corporation.

             Section 4. NON-EXCLUSIVITY OF RIGHTS. The rights to indemnification
and to the Advancement of Expenses conferred in this Article IV shall not be
exclusive of any other right which any person may have or hereafter acquire
under any statute, the Corporation's certificate of incorporation, bylaw,
agreement, vote of stockholders or disinterested directors or otherwise.

             Section 5. INSURANCE. The Corporation may maintain insurance, at
its expense, to protect itself and any director, officer, employee or agent of
the Corporation or another corporation, partnership, joint venture, trust or
other enterprise against any expense, liability or loss, whether or not the
Corporation would have the power to indemnify such person against such expense,
liability or loss under the Delaware General Corporation Law.



                                      -20-

<PAGE>



             Section 6. INDEMNIFICATION OF EMPLOYEES AND AGENTS OF THE
CORPORATION. The Corporation may, to the extent authorized from time to time by
the Board of Directors, grant rights to indemnification, and to the Advancement
of Expenses to any employee or agent of the Corporation to the fullest extent of
the provisions of this Article IV with respect to the indemnification and
Advancement of Expenses of directors and officers of the Corporation.

                                    ARTICLE V
                                    ---------
                             STOCK-SEAL-FISCAL YEAR
                             ----------------------

             SECTION 1. CERTIFICATES FOR SHARES OF STOCK. The certificates for
shares of stock of the Corporation shall be in such form, not inconsistent with
the Certificate of Incorporation, as shall be approved by the Board of
Directors. All certificates shall be signed by the Chairman of the Board, the
Vice-Chairman of the Board, the Chief Executive Officer, the President or a Vice
President and by the Secretary or an Assistant Secretary or the Treasurer or an
Assistant Treasurer, and shall not be valid unless so signed.

             In case any officer or officers who shall have signed any such
certificate or certificates shall cease to be such officer or officers of the
Corporation, whether because of death, resignation or otherwise, before such
certificate or certificates shall have been delivered by the Corporation, such
certificate or certificates may nevertheless be issued and delivered as though
the person or persons who signed such certificate or certificates had not ceased
to be such officer or officers of the Corporation.


                                      -21-

<PAGE>



             All certificates for shares of stock shall be consecutively
numbered as the same are issued. The name of the person owning the shares
represented thereby with the number of such shares and the date of issue thereof
shall be entered on the books of the Corporation.

             Except as hereinafter, provided, all certificates surrendered to
the Corporation for transfer shall be canceled, and no new certificates shall be
issued until former certificates for the same number of shares have been
surrendered and canceled.

             SECTION 2. LOST, STOLEN OR DESTROYED CERTIFICATES. Whenever a
person owning a certificate for shares of stock of the Corporation alleges that
it has been lost, stolen or destroyed, he or she shall file in the office of the
Corporation an affidavit setting forth, to the best of his or her knowledge and
belief, the time, place and circumstances of the loss, theft or destruction,
and, if required by the Board of Directors, a bond of indemnity or other
indemnification sufficient in the opinion of the Board of Directors to indemnify
the Corporation and its agents against any claim that may be made against it or
them on account of the alleged loss, theft or destruction of any such
certificate or the issuance of a new certificate in replacement therefor.
Thereupon the Corporation may cause to be issued to such person a new
certificate in replacement for the certificate alleged to have been lost, stolen
or destroyed. Upon the stub of every new certificate so issued shall be noted
the fact of such issue and the number, date and the name of the registered owner
of the lost, stolen or destroyed certificate in lieu of which the new
certificate is issued.



                                      -22-

<PAGE>



             SECTION 3. TRANSFER OF SHARES. Shares of stock of the Corporation
shall be transferred on the books of the Corporation by the holder thereof, in
person or by his or her attorney duly authorized in writing, upon surrender and
cancellation of certificates for the number of shares of stock to be
transferred, except as provided in Section 2 of this Article IV.

             SECTION 4. REGULATIONS. The Board of Directors shall have power and
authority to make such rules and regulations as it may deem expedient concerning
the issue, transfer and registration of certificates for shares of stock of the
Corporation.

             SECTION 5. RECORD DATE. In order that the Corporation may determine
the stockholders entitled to notice of or to vote at any meeting of
stockholders, or to receive payment of any dividend or other distribution or
allotment of any rights or to exercise any rights in respect of any change,
conversion or exchange of stock or for the purpose of any other lawful action,
the Board of Directors may fix a record date, which record date shall not
precede the date on which the resolution fixing the record date is adopted and
which record date shall not be more than sixty (60) nor less than ten (10) days
before the date of any meeting of stockholders, nor more than sixty (60) days
prior to the time for such other action as hereinbefore described; provided,
however, that if no record date is fixed by the Board of Directors, the record
date for determining stockholders entitled to notice of or to vote at a meeting
of stockholders shall be at the close of business on the day next preceding the
day on which notice is given or, if notice is waived, at the close of business
on the day next preceding the day on which the meeting is held, and, for
determining stockholders entitled to receive payment of any dividend or other
distribution or


                                      -23-

<PAGE>



allotment of rights or to exercise any rights of change, conversion or exchange
of stock or for any other purpose, the record date shall be at the close of
business on the day on which the Board of Directors adopts a resolution relating
thereto.
             A determination of stockholders of record entitled to notice of or
to vote at a meeting of stockholders shall apply to any adjournment of the
meeting; provided, however, that the Board of Directors may fix a new record
date for the adjourned meeting.
             In order that the Corporation may determine the stockholders
entitled to consent to corporate action in writing without a meeting, the Board
of Directors may fix a record date, which shall not precede the date upon which
the resolution fixing the record date is adopted by the Board of Directors, and
which record date shall be not more than ten (10) days after the date upon which
the resolution fixing the record date is adopted. If no record date has been
fixed by the Board of Directors and no prior action by the Board of Directors is
required by the Delaware General Corporation Law, the record date shall be the
first date on which a signed written consent setting forth the action taken or
proposed to be taken is delivered to the Corporation in the manner prescribed by
Article I, Section 9 hereof. If no record date has been fixed by the Board of
Directors and prior action by the Board of Directors is required by the Delaware
General Corporation Law with respect to the proposed action by written consent
of the stockholders, the record date for determining stockholders entitled to
consent to corporate action in writing shall be at the close of business on the
day on which the Board of Directors adopts the resolution taking such prior
action.



                                      -24-

<PAGE>



             SECTION 6. DIVIDENDS. Subject to the provisions of the Certificate
of Incorporation, the Board of Directors shall have power to declare and pay
dividends upon shares of stock of the Corporation, but only out of funds
available for the payment of dividends as provided by law.

             Subject to the provisions of the Certificate of Incorporation, any
dividends declared upon the stock of the Corporation shall be payable on such
date or dates as the Board of Directors shall determine. If the date fixed for
the payment of any dividend shall in any year fall upon a legal holiday, then
the dividend payable on such date shall be paid on the next day not a legal
holiday.

             SECTION 7. CORPORATE SEAL. The Board of Directors shall provide a
suitable seal, containing the name of the Corporation, which seal shall be kept
in the custody of the Secretary. A duplicate of the seal may be kept and be used
by any officer of the Corporation designated by the Board of Directors, the
Chairman of the Board, the Vice-Chairman of the Board, the Chief Executive
Officer or the President.

              SECTION 8. FISCAL YEAR. The fiscal year of the Corporation shall
be such fiscal year as the Board of Directors from time to time by resolution
shall determine.

                            ARTICLE VI MISCELLANEOUS
                            ------------------------
                                   PROVISIONS.
                                   -----------



                                      -25-

<PAGE>



             SECTION 1. CHECKS, NOTES, ETC. All checks, drafts, bills of
exchange, acceptances, notes or other obligations or orders for the payment of
money shall be signed and, if so required by the Board of Directors,
countersigned by such officers of the Corporation and/or other persons as the
Board of Directors from time to time shall designate.

             Checks, drafts, bills of exchange, acceptances, notes, obligations
and orders for the payment of money made payable to the Corporation may be
endorsed for deposit to the credit of the Corporation with a duly authorized
depository by the Treasurer and/or such other officers or persons as the Board
of Directors from time to time may designate.

             SECTION 2. LOANS. No loans and no renewals of any loans shall be
contracted on behalf of the Corporation except as authorized by the Board of
Directors. When authorized to do so, any officer or agent of the Corporation may
effect loans and advances for the Corporation from any bank, trust company or
other institution or from any firm, corporation or individual, and for such
loans and advances may make, execute and deliver promissory notes, bonds or
other evidences of indebtedness of the Corporation. When authorized so to do,
any officer or agent of the Corporation may pledge, hypothecate or transfer, as
security for the payment of any and all loans, advances, indebtedness and
liabilities of the Corporation, any and all stocks, securities and other
personal property at any time held by the Corporation, and to that end may
endorse, assign and deliver the same. Such authority may be general or confined
to specific instances.



                                      -26-

<PAGE>



             SECTION 3. CONTRACTS. Except as otherwise provided in these By-Laws
or by law or as otherwise directed by the Board of Directors, the Chairman of
the Board, the Vice-Chairman of the Board, the Chief Executive Officer, the
President or any Vice President shall be authorized to execute and deliver, in
the name and on behalf of the Corporation, all agreements, bonds, contracts,
deeds, mortgages, and other instruments, either for the Corporation's own
account or in a fiduciary or other capacity, and the seal of the Corporation, if
appropriate, shall be affixed thereto by any of such officers or the Secretary
or an Assistant Secretary. The Board of Directors, the Chairman of the Board,
the Vice-Chairman of the Board, the Chief Executive Officer, the President or
any Vice President designated by the Board of Directors may authorize any other
officer, employee or agent to execute and deliver, in the name and on behalf of
the Corporation, agreements, bonds, contracts, deeds, mortgages, and other
instruments, either for the Corporation's own account or in a fiduciary or other
capacity, and, if appropriate, to affix the seal of the Corporation thereto. The
grant of such authority by the Board or any such officer may be general or
confined to specific instances.

             SECTION 4. WAIVERS OF NOTICE. Whenever any notice whatever is
required to be given by law, by the Certificate of Incorporation or by these
By-Laws to any person or persons, a waiver thereof in writing, signed by the
person or persons entitled to the notice, whether before or after the time
stated therein, shall be deemed equivalent thereto.

              SECTION 5. OFFICES OUTSIDE OF DELAWARE. Except as otherwise
required by the laws of the State of Delaware, the Corporation may have an
office or offices and keep its books,


                                      -27-

<PAGE>



documents and papers outside of the State of Delaware at such place or places as
from time to time may be determined by the Board of Directors, the Chairman of
the Board, the Vice-Chairman of the Board, the Chief Executive Officer or the
President.

                                   ARTICLE VII 
                                   -----------
                                   AMENDMENTS
                                   ----------

             These By-Laws and any amendment thereof may be altered, amended or
repealed, or new By-Laws may be adopted, by the Board of Directors at any
regular or special meeting by the affirmative vote of a majority of all of the
members of the Board, provided in the case of any special meeting at which all
of the members of the Board are not present, that the notice of such meeting
shall have stated that the amendment of these By-Laws was one of the purposes of
the meeting; but these By-Laws and any amendment thereof may be altered, amended
or repealed or new By-Laws may be adopted by the holders of a majority of the
total outstanding stock of the Corporation entitled to vote at any annual
meeting or at any special meeting, provided, in the case of any special meeting,
that notice of such proposed alteration, amendment, repeal or adoption is
included in the notice of the meeting.



                                      -28-

<PAGE>


                                  ARTICLE VIII
                                  ------------
                              WAIVER OF SECTION 203
                              ---------------------

             The Corporation expressly elects not to be governed by Section 203
of the Delaware General Corporation Law, which election shall, in accordance
with such Section, not be effective until 12 months after the adoption of these
By-Laws and not apply to any business combination between the Corporation and
any person who became an interested stockholder of the Corporation on or prior
to such adoption.


                                      -29-
<PAGE>
                                                                       EXHIBIT C

                          IPC INFORMATION SYSTEMS, INC.
                                STOCK OPTION PLAN


Section 1.        PURPOSE
                  -------

         The Plan authorizes the Compensation Committee of the Board to provide
employees, directors and consultants of the Corporation or its Subsidiaries, who
are in a position to contribute to the long-term success of the Corporation and
its Subsidiaries, with Options to acquire Common Stock of the Corporation. The
Corporation believes that this incentive program will cause those persons to
increase their interest in the welfare of the Corporation and its Subsidiaries,
and aid in attracting and retaining employees and consultants of outstanding
ability. Options granted under the Plan are not intended to qualify as incentive
stock options pursuant to Section 422 of the Internal Revenue Code of 1986, as
amended.


Section 2.        DEFINITIONS
                  -----------

         Unless the context clearly indicates otherwise, the following terms,
when used in the Plan, shall have the meanings set forth in this Section:

         (a)      "Board" means the Board of Directors of the Corporation.

         (b) "Cause" means any of the following: (i) commission of any act of
fraud or dishonesty with respect to the business of the Corporation or its
Subsidiaries, (ii) willful misconduct or gross negligence in connection with the
performance of a Grantee's duties to the Corporation and its Subsidiaries, (iii)
indictment for, or conviction of, any crime or an offence involving moral
turpitude, (iv) commission of any act injurious to the interest of the
Corporation, or (v) breach of any material provision of any applicable
employment or consulting agreement. Notwithstanding the foregoing, if any
Grantee is party to an employment or consulting agreement governing the terms of
his employment or consultancy with the Corporation or its Subsidiaries, and such
agreement includes a definition of cause, then for purposes hereof, cause shall
have the meaning ascribed thereto in such agreement.

         (c) "Change in Control" shall mean (i) approval by the stockholders of
the Corporation of a transaction that would result in the reorganization, merger
or consolidation of the Corporation with one or more persons, and, upon
consummation thereof, would result in persons who, immediately prior to such
transaction, beneficially owned (within the meaning of Rule 13d-3 promulgated
under the Securities Exchange Act of 1934) at least 50% of the securities
entitled to vote generally in the election of directors of the Corporation,
beneficially owning (within the meaning of Rule 13d-3 promulgated under the
Securities Exchange Act of 1934) in the aggregate immediately after such
transaction less than 50% of the securities entitled to vote generally in the
election of directors of the entity resulting from such transaction; (ii) the
acquisition of all or



<PAGE>




substantially all of the assets of the Corporation or beneficial ownership
(within the meaning of Rule 13d-3 promulgated under the Securities Exchange Act
of 1934) of at least 50% of the outstanding securities of the Corporation
entitled to vote generally in the election of directors by any person or by any
persons acting in concert, or approval by the stockholder of the Corporation of
any transaction which would result in such an acquisition (other than by any
person or persons who beneficially own (within the meaning of Rule 13d-3
promulgated under the Securities Exchange Act of 1934), immediately after the
closing date of transactions contemplated by the Merger Agreement at least 50%
of the outstanding securities of the Corporation entitled to vote generally in
the election of directors); or (iii) a complete liquidation or dissolution of
the Corporation, or approval of the Corporation of a plan for such liquidation
or dissolution; PROVIDED, HOWEVER, that in no event shall any of the
transactions contemplated by the Merger Agreement (or shareholder approval
thereof) constitute a Change in Control.

         (d) "Committee" means the Compensation Committee of the Board;
PROVIDED, HOWEVER, that with respect to any Option granted or to be granted to
any member of the Compensation Committee, Committee shall mean the Board acting
through a majority of its members who are not members of the Compensation
Committee.

         (e) "Common Stock" means the common stock par value $.01 per share, of
the Corporation.

         (f) "Consultant" means any person who is engaged to perform services
for the Corporation, or has agreed to perform services for the Corporation,
other than as an Employee or Director.

         (g) "Corporation" means IPC Information Systems, Inc., a Delaware
corporation.

         (h)      "Director" means any member of the Board.

         (i) "Disability" means a physical or mental impairment that causes the
Grantee to be unable to engage in any substantial gainful activity and that is
expected to result in death or is expected to last for a continuous period of at
least 12 months. Notwithstanding the foregoing, if any Grantee is party to an
employment or consulting agreement governing the terms of his employment or
consultancy with the Corporation or its Subsidiaries, and such agreement
includes a definition of disability, then for purposes hereof, disability shall
have the meaning ascribed thereto in such agreement.

         (j) "Employee" means any employee of the Corporation or any of its
Subsidiaries, or any person who has agreed to become an employee of the
Corporation or any of its Subsidiaries. The term Employee shall include
directors who are otherwise employed by the Corporation or any
Subsidiary.



                                        2

<PAGE>



         (k) "Fair Market Value" means, as of any date, the fair market value of
a share of Common Stock as determined by the Committee acting in good faith in
its sole discretion; PROVIDED, HOWEVER, that if the Common Stock is listed on a
national securities exchange or quoted in an interdealer quotation system, the
fair market value shall be based on the last sales price or, if unavailable, the
average of the closing bid and asked prices per share of the Common Stock on
such date (or, if there was no trading or quotation in the Common Stock on such
date, on the next preceding date on which there was trading or quotation) as
provided by one of such organizations. Notwithstanding the foregoing, the Fair
Market Value of a share of Common Stock on the closing date of the transactions
contemplated by the Merger Agreement shall be deemed to be the "Cash Election
Price" as defined in the Merger Agreement.

         (l) "Grantee" means a person granted an Option under the Plan.

         (m) "Merger Agreement" means the Agreement and Plan of Merger, dated as
of December 18, 1997 by and between the Corporation and Arizona Acquisition
Corp., a Delaware Corporation.

         (n) "Option" means an option granted pursuant to the Plan to purchase
shares of the Common Stock.

         (o) "Plan" means this Stock Option Plan as set forth herein and as
amended from time to time.

         (p) "Securities Act" means the Securities Act of 1933, as amended, and
the rules and regulations thereunder as presently in effect or hereafter
amended.

         (q) "Stock Option Agreement" shall mean a written agreement between the
Corporation and the Grantee, or a certificate accepted by the Grantee,
evidencing the grant of an Option hereunder and containing such terms and
conditions, not inconsistent with the Plan, as the Committee shall approve.

         (r) "Subsidiary" shall mean (i) any corporation with respect to which
the Corporation owns, directly or indirectly, 50% or more of the total combined
voting power of all classes of stock of such corporation, or (ii) any entity
which the Committee reasonably expects to become a
Subsidiary within the meaning of clause (i).


Section 3.        SHARES OF COMMON STOCK SUBJECT TO THE PLAN
                  ------------------------------------------

         Subject to adjustment as provided in Section 7, the Common Stock which
may be issued pursuant to Options granted under the Plan shall not exceed
[554,112] shares in the aggregate [12% of outstanding on fully diluted basis].
Common Stock issuable under the Plan may be authorized but unissued shares or
reacquired shares of Common Stock. Common Stock subject to Options that 



                                        3

<PAGE>

are forfeited, lapse or terminate in whole or in part for any reason, shall be
available for issuance pursuant to other Options.


Section 4.        ADMINISTRATION OF THE PLAN
                  --------------------------

         (a) AUTHORITY OF THE COMMITTEE. The Plan shall be administered by the
Committee. The Committee shall have full and final authority to take the
following actions, in each case subject to
and consistent with the provisions of the Plan:

          (i)  to select the Employees, Directors and Consultants to whom 
Options may be granted;

         (ii) to determine the number of shares of Common Stock subject to each
such Option; PROVIDED, HOWEVER, that during any calendar year, no individual may
be granted Options with respect to more than 250,000 shares of Common Stock.

        (iii) to determine the terms and conditions of any Option granted under
the Plan (including, but not limited to, the exercise price, the period, if any,
over which Options shall vest and become exercisable (which period may be
accelerated at any time in the discretion of the Committee), and performance
conditions relating to an Option, based in each case on such considerations as
the Committee shall determine), and all other matters to be determined in
connection with an Option;

         (iv) to determine whether, to what extent and under what circumstances
an the exercise price of an Option may be paid, in cash, Common Stock, or other
property, or an Option may expire or be canceled, forfeited, or surrendered;

          (v) to determine the restrictions or conditions related to the
delivery, holding and disposition of shares of Common Stock received upon
exercise of an Option, and

         (vi) to prescribe the form of each Stock Option Agreement, which need
not be identical for each Grantee;

        (vii) to adopt, amend, suspend, waive and rescind such rules and
regulations and appoint such agents as the Committee may deem necessary or
advisable to administer the Plan;

       (viii) to correct any defect or supply any omission or reconcile any
inconsistency in the Plan and to construe and interpret the Plan and any Option,
Stock Option Agreement or other instrument hereunder; and

         (ix) to make all other decisions and determinations as may be required
under the terms of the Plan or as the Committee may deem necessary or advisable
for the administration of the Plan.


                                        4

<PAGE>




The Committee may, at any time, grant new or additional options to any eligible
Employee, Director or Consultant who has previously received Options under the
Plan, or options under other plans, whether such prior Options or other options
are still outstanding, have been exercised previously in whole or in part, or
have been canceled. The exercise price of such new or additional Options may be
established by the Committee, without regard to such previously granted Options
or other options.

Other provisions of the Plan notwithstanding, the Board may perform any function
of the Committee under the Plan, including without limitation for the purpose of
ensuring that transactions under the Plan by Grantees who are then subject to
Section 16 of the Securities Exchange Act of 1934 in respect of the Corporation
are exempt under Rule 16b-3 thereunder. In any case in which the Board is
performing a function of the Committee under the Plan, each reference to the
Committee herein shall be deemed to refer to the Board.

         (b) MANNER OF EXERCISE OF COMMITTEE AUTHORITY. Any action of the
Committee with respect to the Plan shall be final, conclusive and binding on all
persons, including the Corporation, Subsidiaries, Grantees, any person claiming
any rights under the Plan from or through any Grantee and stockholders, except
to the extent the Committee may subsequently modify, or take further action not
consistent with, its prior action. If not specified in the Plan, the time at
which the Committee must or may make any determination shall be determined by
the Committee, and any such determination may thereafter by modified by the
Committee (subject to Section 10). The express grant of any specific power to
the Committee, and the taking of any action by the Committee, shall not be
construed as limiting any power or authority of the Committee. The Committee may
delegate to officers or managers of the Corporation or any subsidiary of the
Corporation the authority, subject to such terms as the Committee shall
determine, to perform such functions as the Committee may determine, to the
extent permitted under applicable law.

         (c) LIMITATION OF LIABILITY. Each member of the Committee shall be
entitled to, in good faith, rely or act upon any report or other information
furnished to him by any officer or other employee of the Corporation or any
subsidiary, the Corporation's independent certified public accountants or any
executive compensation consultant, legal counsel or other professional retained
by the Corporation to assist in the administration of the Plan. To the fullest
extent permitted by applicable law, no member of the Committee, nor any officer
or employee of the Corporation acting on behalf of the Committee, shall be
personally liable for any action, determination or interpretation taken or made
in good faith with respect to the Plan, and all members of the Committee and any
officer or employee of the Corporation acting on its behalf shall, to the extent
permitted by law, be fully indemnified and protected by the Corporation with
respect to any such action, determination or interpretation.


Section 5.        OPTION TERMS
                  ------------

         Unless otherwise determined by the Committee and set forth in a Stock
Option Agreement, Options granted under the Plan shall contain the following
terms and conditions:



                                        5

<PAGE>

         (a) EXERCISE PRICE. The exercise price per share of Common Stock
subject to each Option shall equal the Fair Market Value on the date the Option
is granted.

         (b) VESTING. Each Option shall vest and become exercisable in five
equal installments on each of the first five anniversaries on the date the
Option is granted; PROVIDED, HOWEVER that the Option shall be vested and
exercisable as to no less than 75% of the shares of Common Stock subject thereto
as of the end of any period of 30 consecutive trading days during which the Fair
Market Value averages at least 300% of the Fair Market Value on the date the
Option is granted, and shall be vested and exercisable as to 100% of the shares
of Common Stock subject thereto as of the end of any period of 30 consecutive
trading days during which the Fair Market Value averages at least 450% of the
Fair Market Value on the date the Option is granted; AND PROVIDED FURTHER that
each Option shall become vested and exercisable in full immediately prior to a
Change in Control.

         (c) TERMINATION. Options held by any Grantee shall terminate upon the
earliest of:

                  (i) the termination of the Grantee's employment, directorship
or consultancy with the Corporation and its Subsidiaries for Cause;

                  (ii) 90 days after the Grantee's termination of employment,
directorship or consultancy with the Corporation and its Subsidiaries (which
shall be deemed to include the sale of any Subsidiary of the Corporation that
employs such Grantee) for any reason other than Cause, death or Disability;
PROVIDED, HOWEVER, that during any such 90-day period, the Options shall be
exercisable only to the extent vested and exercisable as of the date of such
termination;

                  (iii) 180 days after the Grantee's termination of employment,
directorship or consultancy with the Corporation and its Subsidiaries by reason
of death or Disability; PROVIDED, HOWEVER, that during any such 180-day period,
the Options shall be exercisable only to the extent vested and exercisable as of
the date of such termination;

                  (iv) the tenth anniversary of the date of grant; and

                  (v) upon the consummation of any transaction whereby the
Corporation (or any successor to the Corporation or substantially all of its
business) becomes a wholly-owned subsidiary of any other corporation (but after
giving effect to Section 5(b)), unless such other corporation shall continue or
assume the Plan as it relates to Options then outstanding (in which case such
other corporation shall be treated as the Corporation for all purposes
hereunder, and, pursuant to Section 7, the Committee of such other corporation
shall make appropriate adjustment in the number and kind of shares of Common
Stock subject thereto and the exercise price per share thereof to reflect
consummation of such transaction). If the Plan is not to be so assumed, the
Corporation shall notify the Grantee of consummation of such transaction at
least ten days in advance thereof.



                                        6

<PAGE>

 Section 6.       EXERCISE OF OPTIONS
                  -------------------

         A Grantee shall exercise an Option by delivery of written notice to the
Corporation setting forth the number of shares with respect to which the Option
is to be exercised, together with cash, certified check, bank draft, wire
transfer, or postal or express money order payable to the order of the
Corporation for an amount equal to the exercise price of such shares and any
income tax required to be withheld. The Committee may, in its sole discretion,
permit a Grantee to pay all or a portion of the exercise price or tax
withholding obligation by delivery of Common Stock or other property (including
notes or other contractual obligations of the Grantee to make payment on a
deferred basis, such as through "cashless exercise" arrangements, to the extent
permitted by applicable law), and the methods by which Common Stock will be
delivered or deemed to be delivered by the Grantee.


Section 7.        ADJUSTMENT UPON CHANGES IN CAPITALIZATION
                  -----------------------------------------

         In the event any recapitalization, forward or reverse split,
reorganization, merger, consoli dation, spin-off, combination, repurchase, or
exchange of Common Stock or other securities, Common Stock dividend or other
special and nonrecurring dividend or distribution (whether in the form of cash,
securities or other property), liquidation, dissolution, or other similar
corporate transaction or event, affects the Common Stock such that an adjustment
is appropriate in order to prevent dilution or enlargement of the rights of
Grantees under the Plan, then the Committee shall, in such manner as it may deem
equitable, adjust any or all of (i) the number and kind of shares of Common
Stock deemed to be available thereafter for grants of Options under Section 3,
(ii) the number and kind of shares of Common Stock that may be delivered or
deliverable in respect of outstanding Options, (iii) the number of shares with
respect to which Options may be granted to a given Grantee in the specified
period as set forth in Section 4(a)(ii), and (iv) the exercise price. In
addition, the Committee is authorized to make adjustments in the terms and
conditions of, and the criteria included in, Options (including, without
limitation, cancellation of Options in exchange for the in-the-money value, if
any, of the vested portion thereof, or substitution of Options using stock of a
successor or other entity) in recognition of unusual or nonrecurring events
(including, without limitation, events described in the preceding sentence)
affecting the Corporation or any Subsidiary or the financial statements of the
Corporation or any Subsidiary, or in response to changes in applicable laws,
regulations, or accounting principles.


Section 8.        RESTRICTIONS ON ISSUANCE OF SHARES.
                  ----------------------------------

         The Corporation shall not be obligated to deliver Common Stock upon the
exercise or settlement of any Option or take any other action under the Plan
until the Corporation shall have determined that applicable federal and state
laws, rules, and regulations have been complied with and such approvals of any
regulatory or governmental agency have been obtained and contractual obligations
to which the Option may be subject have been satisfied. The Corporation, in its
discretion, may postpone the issuance or delivery of Common Stock under any
Option until 




                                        7

<PAGE>


completion of such stock exchange listing or registration or qualification of
Common Stock or other required action under any federal or state law, rule, or
regulation as the Corporation may consider appropriate, and may require any
Grantee to make such representations and furnish such information as it may
consider appropriate in connection with the issuance or delivery of Common Stock
under the Plan. The Corporation shall file a registration statement on Form S-8
(or other appropriate form) with respect to the Common Stock to be issued
pursuant to the Plan and shall use its best efforts to maintain the
effectiveness of such registration statement (and maintain the currency of any
related prospectus) for so long as Options are outstanding or may be granted
under the Plan.


Section 9.        GENERAL PROVISIONS

         (a)      Each Option grant shall be evidenced by a Stock Option 
Agreement.

         (b) The grant of an Option in any year shall not give the Grantee any
right to similar grants in future years or any right to continue such Grantee's
employment relationship with the Corporation. All Grantees shall remain subject
to discharge to the same extent as if the Plan were not in effect.

         (c) No Grantee, and no beneficiary or other persons claiming under or
through the Grantee shall have any right, title or interest by reason of any
Option to any particular assets of the Corporation, or any shares of Common
Stock allocated or reserved for the purposes of the Plan or subject to any
Option except as set forth herein. The Corporation shall not be required to
establish any fund or make any other segregation of assets to assure the payment
of any Option.

         (d) Unless otherwise permitted in the discretion of the Committee, no
Option or other right under the Plan may be sold, transferred, assigned, pledged
or otherwise encumbered, except by will or the laws of descent and distribution,
and an Option shall be exercisable during the Grantee's lifetime only by the
Grantee.

         (e) The Corporation shall have the right to require that the Grantee
make such provision, or furnish the Corporation such authorization, necessary or
desirable so that the Corporation may satisfy its obligation, under applicable
laws, to withhold or otherwise pay for income or other taxes of the Grantee
attributable to the grant, exercise or cancellation of Options granted under the
Plan or the sale of Common Stock issued with respect to Options. This authority
shall include authority to withhold or receive Common Stock or other property
and to make cash payments in respect thereof in satisfaction of a Grantee's tax
obligations.


                                        8

<PAGE>


Section 10.       AMENDMENT OR TERMINATION
                  ------------------------

         The Board may alter, amend, suspend, discontinue or terminate the Plan
at any time; PROVIDED, HOWEVER, that no such action shall adversely affect the
rights of Grantees of Options previously granted hereunder and, PROVIDED
FURTHER, HOWEVER, that any stockholder approval necessary or desirable in order
to comply with applicable law, regulation or listing requirement shall
be obtained in the manner required therein.

Section 11.       EFFECTIVE DATE OF PLAN
                  ----------------------

         The Plan shall be effective immediately after the closing of the
transactions contemplated by the Merger Agreement, subject to the approval of
the Plan by the Corporation's shareholders either
before or after such effective date.


                                        9

<PAGE>
                                                                       EXHIBIT D

                                               _______________, 1998


IPC Information Systems, Inc.
Wall Street Plaza
88 Pine Street
New York, NY 10005



Ladies and Gentlemen:

The undersigned has been advised that as of the date of this letter, he may be
deemed to be an "affiliate" of IPC Information Systems, Inc., a Delaware
corporation ("IPC"), as the term "affiliate" is defined for purposes of Rule 145
("Rule 145") promulgated under the Securities Act of 1933, as amended (the
"Act"). Pursuant to the terms of the Agreement and Plan of Merger dated as of
December , 1997 (the "Merger Agreement"), between Arizona Acquisition
Corp.("AAC") and
IPC, AAC will be merged with and into IPC (the "Merger").

As a result of the Merger, the undersigned will receive shares of Common Stock,
par value $.01 per share, of IPC ("New IPC Common Stock"), in exchange for
shares of Common Stock, par value $.01 per share, of IPC (the "Old IPC Common
Stock") owned (or deemed owned pursuant to the terms of the Merger Agreement) by
the undersigned.

The undersigned hereby undertakes that he shall not make any sale, transfer or
other disposition of New IPC Common Stock received in the Merger in violation of
the Act and the rules and regulations promulgated thereunder. The undersigned
has been advised that the issuance of New IPC Common Stock to him in the Merger
has been registered with the Securities and Exchange Commission (the "SEC") on a
Registration Statement on Form S-4. However, the undersigned has also been
advised that, because at the time the Merger was submitted for a vote of the
stockholders of IPC, the undersigned may be deemed to have been an "affiliate"
of IPC and the distribution by him of New IPC Common Stock has not been
registered under the Act, the undersigned may not sell, transfer or otherwise
dispose of the New IPC Common Stock issued to him in the Merger except (i)
pursuant to an effective registration statement under the Act, (ii) in
conformity with the applicable volume and other limitations of Rule 145, or
(iii) in a transaction which, in the opinion of counsel reasonably satisfactory
to IPC or as described in a "no action" or interpretive letter obtained by the
undersigned from the staff of the SEC, is not required to be registered under
the Act.

In the event of a sale or other disposition by the undersigned of New IPC Common
Stock pursuant to Rule 145, the undersigned will supply IPC with evidence of
compliance with such rule, in the form of a letter in the form of Annex 1
hereto. The undersigned understands that IPC may instruct its transfer agent to
withhold the transfer of any shares of New IPC Common Stock disposed of by



<PAGE>



the undersigned, but that upon receipt of such evidence of compliance the
transfer agent shall effectuate the transfer of New IPC Common Stock sold as
indicated in the letter.

The undersigned acknowledges that he has carefully read this letter and the
Merger Agreement and has discussed the requirements of such documents and other
applicable limitations upon his ability to sell, transfer or otherwise dispose
of the New IPC Common Stock to the extent he felt necessary, with his counsel.

Execution of this letter should not be considered an admission on the part of
the undersigned that he is an "affiliate" of IPC as described in the first
paragraph of this letter or as a waiver of any rights the undersigned may have
to object to any claim that the undersigned is such an affiliate on or after the
date of this letter.

                                           Very truly yours,


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




Accepted this ___ day of __________, 1998 
by IPC Information Systems, Inc.

By: __________________________
Name: _______________________
Title: ________________________


                                                                

<PAGE>


                                                                       ANNEX  I


IPC Information Systems, Inc.
Wall Street Plaza
88 Pine Street
New York, NY 10005


Ladies and Gentlemen:

On ____________, the undersigned sold ________ shares of Common Stock, par value
$.01 per share (the "Common Stock") of IPC Information Systems, Inc. ("IPC").
The Common Stock was received by the undersigned in connection with the merger
of Arizona Acquisition Corp. with and into IPC.

The undersigned hereby represents that the Common Stock was sold in conformity
with the applicable volume and other limitations of Rule 145 promulgated under
the Securities Act of 1933, as amended.


                                        Very truly yours,









cc:   [Transfer Agent]
      [Address]

      Morgan, Lewis & Bockius LLP
      101 Park Avenue
      New York, NY  10178
      Attn:  Philip H. Werner


                                                                 EXECUTION COPY


                             STOCKHOLDERS AGREEMENT

         AGREEMENT, dated as of December 18, 1997 by and between Arizona
Acquisition Corp., a Delaware corporation ("Merger Subsidiary"), and the other
parties signatory hereto (each, a "Stockholder"). Capitalized terms used but not
defined herein shall have the meanings set forth in the Agreement and Plan of
Merger, dated the date hereof (as such agreement may be amended from time to
time, the "Merger Agreement").

         WHEREAS, concurrently herewith, Merger Subsidiary and IPC Information
Systems, Inc., a Delaware corporation (the "Company"), are entering into a
Merger Agreement, pursuant to which Merger Subsidiary will be merged with and
into the Company (the "Merger"), whereby each share of common stock, par value
$.01 per share, of the Company ("Company Common Stock") issued and outstanding
immediately prior to the Effective Time will be converted into either (A) the
right to retain at the election of the holder thereof and subject to the terms
of the Merger Agreement, common stock, par value $.01 per share, of the Company
or (B) the right to receive cash, other than (i) shares of Company Common Stock
owned, directly or indirectly, by the Company or any Subsidiary of the Company
or by Merger Subsidiary and (ii) Dissenting Shares.

         WHEREAS, as a condition to Merger Subsidiary's entering into the Merger
Agreement, Merger Subsidiary requires that each Stockholder enter into, and each
such Stockholder has agreed to enter into, this Agreement with Merger
Subsidiary.

         NOW, THEREFORE, in order to implement the foregoing and in
consideration of the mutual agreements contained herein, the parties hereby
agree as follows:

         Section 1. CERTAIN DEFINITIONS. The following terms, when used in this
Agreement, shall have the following meanings (such definitions to be equally
applicable to both singular and plural terms of the terms defined):

         "AFFILIATE" means, with respect to any Person, any other Person
directly or indirectly controlling, controlled by, or under common control with
such Person, provided that no securityholder of the Company shall be deemed an
Affiliate of any other securityholder solely by reason of any investment in the
Company. For the purpose of this definition, the term "control" (including with
correlative meanings, the terms "controlling", "controlled by" and "under common
control with"), as used with respect to any Person, shall mean the possession,
directly or indirectly, of the power to direct or cause the direction of the
management and policies of such Person, whether through the ownership of stock,
as a trustee or executor, by contract or credit arrangement or otherwise.




<PAGE>



         "AMENDED AND RESTATED LABOR POOLING AGREEMENTS" has the meaning
ascribed thereto in Section 5(e) of this Agreement.

         "BENEFICIALLY OWN" or "BENEFICIAL OWNERSHIP" with respect to any
securities shall mean having "beneficial ownership" of such securities (as
determined pursuant to Rule 13d-3 under the Exchange Act), including pursuant to
any agreement, arrangement or understanding, whether or not in writing. Without
duplicative counting of the same securities by the same holder, securities
Beneficially Owned by a Person shall include securities Beneficially Owned by
all other Persons with whom such Person would constitute a "group" as described
in Section 13(d)(3) of the Exchange Act.

         "BUSINESS" means (i) the design, manufacture, sale, distribution and/or
maintenance of voice and/or data communications products, including, but not
limited to, turret or dealerboard systems used within the financial services,
energy, transportation or emergency services industries, Private Branch Exchange
(PBX) and/or key telephone systems, voice recording systems and video
teleconferencing products; (ii) the furnishing of communications cabling or
voice or data communications products, including the design and/or installation
of local and wide area networks or the provision of maintenance services for
said communications cabling or products; (iii) the design, furnishing,
installation and/or maintenance of low voltage cabling systems (such as would
not require an electrical license for the installation thereof); and (iv) the
provision of long distance telecommunications network services.

         "COMPANY" has the meaning ascribed thereto in the recitals of this 
Agreement.

         "COMPANY COMMON STOCK" has the meaning ascribed thereto in the recitals
of this Agreement.

         "CONTROL" (including the terms "CONTROLLED BY" and "UNDER COMMON
CONTROL WITH") means the possession, directly or indirectly or as a trustee or
executor, of the power to direct or cause the direction of the management or
policies of a Person, whether through the ownership of stock, as a trustee or
executor, by contract or credit arrangement or otherwise.

         "EXISTING SHARES" has the meaning ascribed thereto in Section 2(a)(i).

         "HSR ACT" means the Hart-Scott-Rodino Antitrust Improvements Act of 
1976, as amended.

         "KEC-NY"  means Kleinknecht Electric Company, Inc., a New York 
corporation.

         "KEC-NJ"  means Kleinknecht Electric Company, Inc., a New Jersey 
corporation.

         "KLEINKNECHTS" means Richard Kleinknecht and Peter Kleinknecht.

         "MERGER" has the meaning ascribed thereto in the recitals of this 
Agreement.

                                       -2-


<PAGE>



         "MERGER SUBSIDIARY" has the meaning ascribed thereto in the 
introductory paragraph of this Agreement.

         "PERSON" means an individual, corporation, partnership, limited
liability company, limited partnership, association, trust, unincorporated
organization or other entity or group (as defined in Section 13(d)(3) of the
Exchange Act).

         "ROLLOVER STOCKHOLDER" means Richard Kleinknecht.

         "SHARES" means the Existing Shares, together with any shares of Company
Common Stock acquired of record or beneficially by such Stockholder in any
capacity after the date hereof and prior to the termination hereof, whether upon
exercise of options, conversion of convertible securities, purchase, exchange or
otherwise; PROVIDED, HOWEVER, that in the event of a stock dividend or
distribution, or any change in the Company Common Stock by reason of any stock
dividend, split-up, recapitalization, combination, exchange of shares or the
like, the term "Shares" shall be deemed to refer to and include the Shares as
well as all such stock dividends and distributions and any shares into which or
for which any or all of the Shares may be changed or exchanged.

         "STOCKHOLDER" has the meaning ascribed thereto in the introductory 
paragraph to this Agreement.

         "SUBSIDIARY" means, with respect to any Person, any entity of which
securities or other ownership interests having ordinary voting power to elect a
majority of the board of directors or other persons performing similar functions
are at the time directly or indirectly owned by such Person.

         "TERMINATION DATE" has the meaning ascribed thereto in Section 12 of 
this Agreement.

         "TRUSTEE" has the meaning ascribed thereto in Section 2(a)(i) of this 
Agreement.

         Section 2. REPRESENTATIONS AND WARRANTIES OF STOCKHOLDERS. Each
Stockholder hereby, severally and not jointly, represents and warrants to Merger
Subsidiary as follows:

                  (a) (i) Such Stockholder is either (A) the record holder or
                  beneficial owner of the number of, or (B) trustee of a trust
                  that is the record holder or beneficial owner of, and whose
                  beneficiaries are the beneficial owners (such trustee, a
                  "Trustee"), shares of Company Common Stock as is set forth
                  opposite such Stockholder's
                  name on Schedule I hereto (the "Existing Shares").

                           (ii) On the date hereof, the Existing Shares set
                  forth opposite such Stockholder's name on Schedule I hereto
                  constitute all of the outstanding shares of Company Common
                  Stock owned of record or beneficially by such Stockholder.

                                       -3-


<PAGE>



                  Such Stockholder does not have record or beneficial ownership
                  of any Shares not set forth on Schedule I hereto.

                           (iii) Such Stockholder has sole power of disposition
                  with respect to all of the Existing Shares set forth opposite
                  such Stockholder's name on Schedule I and sole voting power
                  with respect to the matters set forth in Section 4 hereof and
                  sole power to demand dissenter's or appraisal rights, in each
                  case with respect to all of the Existing Shares set forth
                  opposite such Stockholder's name on Schedule I, with no
                  restrictions on such rights, subject to applicable federal
                  securities laws and the terms of this Agreement.

                           (iv) Such Stockholder will have sole power of
                  disposition with respect to Shares other than Existing Shares,
                  if any, which become beneficially owned by such Stockholder
                  and will have sole voting power with respect to the matters
                  set forth in Section 4 hereof and sole power to demand
                  dissenter's or appraisal rights, in each case with respect to
                  all Shares other than Existing Shares, if any, which become
                  beneficially owned by such Stockholder with no restrictions on
                  such rights, subject to applicable federal securities laws and
                  the terms of this Agreement.

                  (b) Such Stockholder has the legal capacity, power and
         authority to enter into and perform all of such Stockholder's
         obligations under this Agreement. The execution, delivery and
         performance of this Agreement by such Stockholder will not violate any
         other agreement to which such Stockholder is a party or by which such
         Stockholder is bound including, without limitation, any trust
         agreement, voting agreement, stockholders agreement, voting trust,
         partnership or other agreement. This Agreement has been duly and
         validly executed and delivered by such Stockholder and constitutes a
         valid and binding agreement of such Stockholder, enforceable against
         such Stockholder in accordance with its terms, except as limited by (a)
         bankruptcy, insolvency, reorganization, moratorium or other similar
         laws relating to creditor's rights generally, (b) general principles of
         equity, whether such enforceability is considered in a proceeding in
         equity or at law, and to the discretion of the court before which any
         proceeding therefore may be brought, or (c) public policy
         considerations or court decisions which may limit the rights of the
         parties thereto for indemnification. All necessary consents of any
         beneficiary of or holder of interest in any trust of which a
         Stockholder is Trustee to the execution and delivery of this Agreement
         and the consummation of the transactions contemplated hereby have been
         obtained. If such Stockholder is married and such Stockholder's Shares
         constitute community property, this Agreement has been duly authorized,
         executed and delivered by, and constitutes a valid and binding
         agreement of, such Stockholder's spouse, enforceable against such
         person in accordance with its terms.

                  (c) Except for filings under the HSR Act, if applicable, (i)
         no filing with, and no permit, authorization, consent or approval of,
         any state or federal public body or

                                       -4-


<PAGE>



         authority is necessary for the execution of this Agreement by such
         Stockholder and the consummation by such Stockholder of the
         transactions contemplated hereby and (ii) neither the execution and
         delivery of this Agreement by such Stockholder nor the consummation by
         such Stockholder of the transactions contemplated hereby nor compliance
         by such Stockholder with any of the provisions hereof shall (x)
         conflict with or result in any breach of any applicable trust,
         partnership agreement or other agreements or organizational documents
         applicable to such Stockholder, (y) result in a violation or breach of,
         or constitute (with or without notice or lapse of time or both) a
         default (or give rise to any third party right of termination,
         cancellation, material modification or acceleration) under any of the
         terms, conditions or provisions of any note, bond, mortgage, indenture,
         license, contract, commitment, arrangement, understanding, agreement or
         other instrument or obligation of any kind to which such Stockholder is
         a party or by which such Stockholder or any of such Stockholder's
         properties or assets may be bound or (z) violate any order, writ,
         injunction, decree, judgment, statute, rule or regulation applicable to
         such Stockholder or any of such Stockholder's properties or assets.

                  (d) Except for the shares of Company Common Stock owned by the
         Kleinknechts identified in Schedule II hereto (the "Pledged Shares"),
         such Stockholder's Shares and the certificates representing such Shares
         are now and at all times during the term hereof will be held by such
         Stockholder, or by a nominee or custodian for the benefit of such
         Stockholder, free and clear of all liens, claims, security interests,
         proxies, voting trusts or agreements, understandings or arrangements or
         any other encumbrances whatsoever, except for any such encumbrances or
         proxies arising hereunder.

                  (e) No broker, investment banker, financial adviser or other
         person is entitled to any broker's, finder's, financial adviser's or
         other similar fee or commission in connection with the transactions
         contemplated hereby based upon arrangements made by or on behalf of
         such Stockholder in his or her capacity as such.

                  (f) Such Stockholder understands and acknowledges that Merger
         Subsidiary is entering into the Merger Agreement in reliance upon such
         Stockholder's execution and delivery of this Agreement with Merger
         Subsidiary.

         Section 3. REPRESENTATIONS AND WARRANTIES OF MERGER SUBSIDIARY. Merger
Subsidiary hereby represents and warrants to each Stockholder as follows:

                  (a) Merger Subsidiary is a corporation duly organized, validly
         existing and in good standing under the laws of the jurisdiction of its
         formation.

                  (b) Merger Subsidiary has all necessary power and authority to
         execute and deliver this Agreement and to consummate the transactions
         contemplated hereby. The execution, delivery and performance by Merger
         Subsidiary of this Agreement and the

                                       -5-


<PAGE>



         consummation by Merger Subsidiary of the transactions contemplated
         hereby have been duly and validly authorized and approved by all
         required corporate action other than shareholder approval which shall
         be effected prior to the Effective Time. This Agreement has been duly
         executed and delivered by Merger Subsidiary, and (assuming due
         authorization, execution and delivery by the Stockholders) constitutes
         a valid and binding obligation of Merger Subsidiary, enforceable
         against it in accordance with its terms, except as limited by (a)
         bankruptcy, insolvency, reorganization, moratorium or other similar
         laws relating to creditor's rights generally, (b) general principles of
         equity, whether such enforceability is considered in a proceeding in
         equity or at law, and to the discretion of the court before which any
         proceeding therefor may be brought, or (c) public policy considerations
         or court decisions which may limit the rights of the parties thereto
         for indemnification.

                  (c) Except for the filing of a pre-merger notification and
         report form under the HSR Act, the execution and delivery of this
         Agreement do not, and the consummation by Merger Subsidiary of the
         transactions contemplated by this Agreement and compliance by Merger
         Subsidiary with the provisions of this Agreement will not, conflict
         with, or result in any breach or violation of, or default (with or
         without notice or lapse of time, or both) under, or give rise to a
         right of termination, cancellation or acceleration of or "put" right
         with respect to any obligation or to loss of a material benefit under,
         or result in the creation of any lien upon any of the properties or
         assets of Merger Subsidiary under, (i) any charter or by-laws of Merger
         Subsidiary, (ii) any loan or credit agreement, note, bond, mortgage,
         indenture, lease or other agreement, instrument, permit, concession,
         franchise or license applicable to Merger Subsidiary or its properties
         or assets or (iii) any judgment, order, decree, statute, law,
         ordinance, rule, regulation or arbitration award applicable to Merger
         Subsidiary or its properties or assets. No consent, approval, order or
         authorization of, or registration, declaration or filing with, or
         notice to, any state or federal public body or authority is required by
         or with respect to Merger Subsidiary in connection with the execution
         and delivery of this Agreement by Merger Subsidiary or the consummation
         by Merger Subsidiary of any of the transactions contemplated by this
         Agreement.

         Section 4. AGREEMENT TO VOTE; PROXY

                  (a) Each Stockholder hereby, severally and not jointly, agrees
         that, until the Termination Date (as defined in Section 12), at any
         meeting of the Company Stockholders, however called, or in connection
         with any written consent of the Company Stockholders, such Stockholder
         shall vote (or cause to be voted) the Shares held of record or
         beneficially by such Stockholder (i) in favor of the Merger, the
         execution and delivery by the Company of the Merger Agreement and the
         approval of the terms thereof and each of the other actions
         contemplated by the Merger Agreement and this Agreement and any actions
         required in furtherance hereof and thereof; (ii) against any action or
         agreement that would result in a breach of any covenant, representation
         or warranty or any other

                                       -6-


<PAGE>



         obligation or agreement of the Company under the Merger Agreement or
         this Agreement; (iii) in favor of the incentive stock option plan
         referred to in Section 5(l) of the Merger Agreement; and (iv) against
         the following actions (other than the Merger and the transactions
         contemplated by the Merger Agreement or any such actions identified in
         writing by Merger Subsidiary in advance): (A) any extraordinary
         corporate transaction, including, without limitation, a merger,
         consolidation or other business combination involving the Company or
         its Subsidiaries; (B) a sale, lease or transfer of a material amount of
         assets of the Company or its Subsidiaries or a reorganization,
         recapitalization, dissolution or liquidation of the Company or its
         Subsidiaries; (C) any change in the majority of the board of directors
         of the Company; (D) any material change in the present capitalization
         of the Company or any amendment of the Company's Certificate of
         Incorporation or By-Laws; (E) any other material change in the
         Company's corporate structure or business; or (F) any other action
         which is intended, or could reasonably be expected, to impede,
         interfere with, delay, postpone, discourage or materially adversely
         affect the Merger or the transactions contemplated by the Merger
         Agreement or this Agreement. Such Stockholder shall not enter into any
         agreement or understanding with any person or entity to vote or give
         instructions in any manner inconsistent with clauses (i), (ii) or (iii)
         of the preceding sentence.

                  (b) EACH STOCKHOLDER HEREBY GRANTS TO, AND APPOINTS, MERGER
         SUBSIDIARY AND ANY DESIGNEE OF MERGER SUBSIDIARY, EACH OF THEM
         INDIVIDUALLY, SUCH STOCKHOLDER'S IRREVOCABLE (UNTIL THE TERMINATION
         DATE) PROXY AND ATTORNEY-IN-FACT (WITH FULL POWER OF SUBSTITUTION) TO
         VOTE THE SHARES AS SET FORTH IN SECTION 4.1 ABOVE. EACH STOCKHOLDER
         INTENDS THIS PROXY TO BE IRREVOCABLE (UNTIL THE TERMINATION DATE) AND
         COUPLED WITH AN INTEREST AND WILL TAKE SUCH FURTHER ACTION AND EXECUTE
         SUCH OTHER INSTRUMENTS AS MAY BE NECESSARY TO EFFECTUATE THE INTENT OF
         THIS PROXY AND HEREBY REVOKES ANY PROXY PREVIOUSLY GRANTED BY SUCH
         STOCKHOLDER WITH RESPECT TO SUCH STOCKHOLDER'S SHARES.

         Section 5. CERTAIN COVENANTS OF STOCKHOLDERS. Except in accordance with
the terms of this Agreement, each Stockholder hereby severally covenants and
agrees as follows:

                  (a) Prior to the Termination Date, no Stockholder shall, in
         its capacity as such, directly or indirectly (including through
         advisors, agents or other intermediaries), solicit (including by way of
         furnishing information) or respond to any inquiries or the making of
         any proposal by any person or entity (other than Merger Subsidiary or
         any Affiliate thereof) with respect to the Company that constitutes or
         could reasonably be expected to lead to an Acquisition Proposal (as
         defined in Section 5(j) of the Merger Agreement), provided, however,
         that the foregoing shall not restrict a Stockholder who is also a
         director of the Company from taking any actions in such Stockholder's
         capacity as a

                                       -7-


<PAGE>



         director. If any Stockholder in its capacity as such receives any such
         inquiry or proposal, then such Stockholder shall promptly inform Merger
         Subsidiary of the material terms and conditions, if any, of such
         inquiry or proposal and the identity of the person making it. Each
         Stockholder, in its capacity as such, will immediately cease and cause
         to be terminated any existing activities, discussions or negotiations
         with any parties conducted heretofore with respect to any of the
         foregoing.

                  (b) Prior to the Termination Date, no Stockholder shall,
         directly or indirectly (i) except pursuant to the terms of the Merger
         Agreement or this Agreement, offer for sale, sell, transfer, tender,
         pledge, encumber, assign or otherwise dispose of, enforce or permit the
         execution of the provisions of any redemption agreement with the
         Company or enter into any contract, option or other arrangement or
         understanding with respect to or consent to the offer for sale, sale,
         transfer, tender, pledge, encumbrance, assignment or other disposition
         of, or exercise any discretionary powers to distribute, any or all of
         such Stockholder's Shares or any interest therein, including any trust
         income or principal, except in each case to a Permitted Transferee who
         is or agrees to become bound by this Agreement; (ii) except as
         contemplated hereby, grant any proxies or powers of attorney with
         respect to any Shares, deposit any Shares into a voting trust or enter
         into a voting agreement with respect to any Shares; or (iii) take any
         action that would make any representation or warranty of such
         Stockholder contained herein untrue or incorrect or have the effect of
         preventing or disabling such Stockholder from performing such
         Stockholder's obligations under this Agreement.

                  (c) Each Stockholder hereby waives any rights of appraisal or
         rights to dissent from the Merger that such Stockholder may have. Each
         Trustee represents that no beneficiary who is a beneficial owner of
         Shares under any trust has any right of appraisal or right to dissent
         from the Merger which has not been so waived.

                  (d) Subject to the terms and provisions of the Merger
         Agreement, in connection with the Merger, the Rollover Stockholder
         hereby agrees to elect to retain an aggregate of 380,952 shares of
         Surviving Corporation Common Stock upon conversion of, and with respect
         to, 380,952 of such Rollover Stockholder's Shares (the "Rollover
         Shares") unless otherwise agreed with Merger Subsidiary.

                  (e) The Kleinknechts shall cause (i) KEC-NY to enter into the
         Amended and Restated Labor Pooling Agreement between KEC-NY and the
         Company, substantially in the form of Exhibit A-1 attached to the
         Merger Agreement, and (ii) KEC-NJ to enter into the Amended and
         Restated Labor Pooling Agreement between KEC-NJ and the Company,
         substantially in the form of Exhibit A-2 attached hereto (collectively,
         the "Amended and Restated Labor Pooling Agreements").


                                       -8-


<PAGE>



                  (f) Richard Kleinknecht shall enter into the Investors
         Agreement among the Company, Cable Systems Holding LLC, Cable Systems
         International Inc. and certain other parties named therein.

                  (g) Unless, in connection therewith, the Shares held by any
         trust which are presently subject to the terms of this Agreement are
         transferred to one or more Stockholders and remain subject in all
         respects to the terms of this Agreement, or other Permitted Transferees
         who upon receipt of such Shares become signatories to this Agreement,
         the Stockholders who are Trustees shall not take any action to
         terminate, close or liquidate any such trust and shall take all steps
         necessary to maintain the existence thereof at least until the first to
         occur of (i) the Effective Time and (ii) the Termination Date.

                  (h) The Rollover Stockholder shall take all actions necessary
         to cause any Rollover Shares that constitute Pledged Shares, prior to
         the Effective Time, to be free and clear of all liens, claims, security
         interests, proxies, voting trusts or agreements, understandings or
         arrangements or any other encumbrances whatsoever, except for any such
         encumbrances or proxies arising hereunder.

         Section 6. NON-COMPETITION.

                  (a) For a period of three years after the Effective Time,
         except as contemplated or permitted under the Merger Agreement, the
         Amended and Restated Labor Pooling Agreements, the Corporate
         Opportunity Agreement, the Investors Agreement, dated the date hereof,
         among the Company and the other parties named therein, the Amended and
         Restated Employment Agreement, dated as of the Effective Date between
         Richard Kleinknecht and the Company (the "Richard Kleinknecht
         Employment Agreement"), or the Amended and Restated Employment
         Agreement, dated the Effective Date, between Peter Kleinknecht and the
         Company (the "Peter Kleinknecht Employment Agreement" and, together
         with the Richard Kleinknecht Employment Agreement, the "Amended and
         Restated Employment Agreements") each of the Kleinknechts severally
         agrees, and shall cause each of their respective Affiliates, including,
         without limitation, KEC-NY and KEC-NJ, to agree, that any such Person
         shall not, directly or indirectly, through any Person Controlled by
         either of the Kleinknechts in any form or manner within any
         jurisdiction in which the Company or any of its Affiliates are doing
         business: (i) engage in the Business (as defined herein) for his or
         their own account or for the account of any other Person, or (ii)
         become interested in any Person engaged in the Business as a partner,
         shareholder, member, principal, agent, employee, trustee, consultant or
         in any other relationship or capacity; PROVIDED, HOWEVER, that either
         of the Kleinknechts may own, directly or indirectly, solely as a
         passive investment, securities of any Person if either of the
         Kleinknechts or any of their respective Affiliates, as the case may be
         (1) is not a Person in Control of, or a member of a group that
         Controls, such Person and (2) does not, directly or indirectly, own 5%
         or more of any voting class of securities of such Person.

                                       -9-


<PAGE>



                  (b) In perpetuity and on a worldwide basis, except as
         contemplated or permitted under the Merger Agreement, each of the
         Kleinknechts severally agrees, and shall cause each of their respective
         Affiliates including, without limitation, KEC-NY or KEC-NJ to agree,
         that such Person shall not, directly or indirectly, disclose to any
         other party, unless required to do so by law or court order, any
         confidential, non-public or proprietary information relating to the
         Company or to any Subsidiary or joint venture thereof which information
         was acquired during the course of such Person's relationship with the
         Company, except information which (i) becomes known to such Person from
         a source other than the Company, its directors, officers or employees,
         which source is not obligated to the Company to keep such information
         confidential or (ii) becomes generally available to the public through
         no breach of this Agreement by the Kleinknechts.

                  (c) For a period ending on the later to occur of (i) three
         years after the Effective Time and (ii) the expiration or termination
         of the Amended and Restated Labor Pooling Agreements, on a worldwide
         basis, except as contemplated or permitted under the Merger Agreement
         or the Amended and Restated Labor Pooling Agreements, each of the
         Kleinknechts severally agrees that, without the prior written consent
         of the Company, the Kleinknechts, any of their Affiliates or any
         business or enterprise with which either of the Kleinknechts is
         associated as an officer, director or controlling shareholder or other
         investor with the power to direct or cause the direction of the
         management of such business or enterprise shall not employ or attempt
         to employ an employee of the Company or any of its subsidiaries or
         joint ventures (other than, with respect to Richard Kleinknecht, his
         executive assistant).

                  (d) If either of the Kleinknechts breaches, or threatens to
         commit a breach of, any of the provisions contained in this Section 6,
         the Company shall have the following rights and remedies with respect
         to Richard or Peter Kleinknecht, as the case may be, each of which
         rights and remedies shall be independent of the others and severally
         enforceable, and each of which is in addition to, and not in lieu of,
         any other rights and remedies available to the Company under law or in
         equity:

                           (i) the right and remedy to have the provisions of
                  this Section 6 specifically enforced by any court of competent
                  jurisdiction and Merger Subsidiary shall be entitled to apply
                  for and receive injunctive relief in order to prevent the
                  continuation of any existing breach or the occurrence of any
                  threatened breach, it being agreed that any breach or
                  threatened breach of the provisions of this Section 6 would
                  cause irreparable injury to the Company and that money damages
                  would not provide an adequate remedy to the Company.

                  (e) Each of the Kleinknechts agrees that the provisions of
         this Section 6 are reasonable and valid in geographical and temporal
         scope and in all other respects. If any court determines that the
         provisions of this Section 6, or any part thereof, is unenforceable
         because of the duration or geographical scope of such provision, such
         court

                                      -10-


<PAGE>



         shall have the power to reduce the duration or scope of such provision,
         as the case may be, and, in its reduced form, such provision shall be
         enforceable.

                  (f) If any court determines that the provisions of this
         Section 6, or any part thereof, is invalid or unenforceable, the
         remainder of the provisions of this Section 6 shall not thereby be
         affected and shall be given full effect without regard to invalid
         portions.

         Section 7. TERMINATION OF CERTAIN AGREEMENTS. Effective immediately
prior to the Effective Time and without further action by the parties hereto,
each of (a) the Employment Agreement, dated May 9, 1994, between the Company and
Peter Kleinknecht, (b) the Employment Agreement, dated May 9, 1994, between the
Company and Richard Kleinknecht, (c) Registration Rights Agreement, dated as of
May 9, 1994, between the Company, Richard Kleinknecht and Peter Kleinknecht and
(d) all special compensation arrangements for the Kleinknechts (other than those
set forth in the Amended and Restated Employment Agreements), in each case shall
terminate without any obligation or liability to the Company and shall be of no
further force and effect.

         Section 8. FURTHER ASSURANCES. From time to time, at the other party's
request and without further consideration, each party hereto shall execute and
deliver such additional documents and take all such further action as may be
necessary or desirable to consummate and make effective, in the most expeditious
manner practicable, the transactions contemplated by this Agreement.

         Section 9. CERTAIN EVENTS. Each Stockholder agrees that this Agreement
and the obligations hereunder shall attach to such Stockholder's Shares and
shall be binding upon any person or entity to which legal or beneficial
ownership of such Shares shall pass, whether by operation of law or otherwise,
including without limitation such Stockholder's heirs, guardians, administrators
or successors or as a result of any divorce.

         Section 10. STOP TRANSFER. Each Stockholder agrees with, and covenants
to, Merger Subsidiary that such Stockholder shall not request that the Company
register the transfer (book-entry or otherwise) of any certificate or
uncertificated interest representing any of such Stockholder's Shares, unless
such transfer is made in compliance with this Agreement.

         Section 11. RULE 145 AFFILIATES. Each Stockholder who is an "affiliate"
of the Company for purposes of Rule 145 under the Securities Act of 1933, as
amended, hereby agrees to deliver to Merger Subsidiary, on or prior to the
Closing Date (as defined in the Merger Agreement) a written agreement as
contemplated by Section 5(o) of the Merger Agreement.

         Section 12. TERMINATION. The obligations of the Stockholders and the
irrevocable proxy contained in Section 4(b) of this Agreement shall terminate
upon the first to occur of (a) the Effective Time and (b) the date the Merger
Agreement is terminated in accordance with its terms (the "Termination Date");
provided that the provisions of Sections 2, 3 and 13 and any

                                      -11-


<PAGE>



claim for breach of any representation, warranty, covenant or other agreement
under this Agreement shall survive the Effective Time and/or the Termination
Date, as applicable.

         Section 13. MISCELLANEOUS.

                  (a) All notices, requests, claims, demands and other
         communications hereunder shall be in writing and shall be given (and
         shall be deemed to have been duly received if so given) by hand
         delivery, telegram, telex or telecopy, or by mail (registered or
         certified mail, postage prepaid, return receipt requested) or by any
         courier service providing proof of delivery. All communications
         hereunder shall be delivered to the respective parties at the following
         addresses:

         If to the Stockholders:            Richard Kleinknecht
                                            15 Banbury Lane
                                            Huntington, NY  11743
                                            Telecopier:

         copy to:                           White & Case
                                            1155 Avenue of the Americas
                                            New York, NY 10036
                                            Attn: Edward F. Rover, Esq.
                                            Telecopier: (212) 354-8113

         If to Merger Subsidiary:           Arizona Acquisition Corp.
                                            c/o Cable Systems Holding LLC
                                            505 North 51st Avenue
                                            Phoenix, Arizona  85043-2701
                                            Attn: President
                                            Telecopier:  602-233-5782

         copy to:                           Citicorp Venture Capital, Ltd.
                                            399 Park Avenue
                                            14th Floor, Zone 4
                                            New York, NY  10043
                                            Attn: Richard M. Cashin, Jr.
                                            Telecopier:  212-888-2940


         and:                               Morgan, Lewis & Bockius LLP
                                            101 Park Avenue
                                            New York, NY  10178
                                            Attn: Philip H. Werner, Esq.
                                            Telecopier: 212-309-6273

                                      -12-


<PAGE>



         or to such other address as the person to whom notice is given may have
         previously furnished to the others in writing in the manner set forth
         above.

                  (b) At any time prior to the Effective Time, any party hereto
         may, with respect to any other party hereto, (i) extend the time for
         the performance of any of the obligations or other acts, (ii) waive any
         inaccuracies in the representations and warranties contained herein or
         in any document delivered pursuant hereto or (iii) waive compliance
         with any of the agreements or conditions contained herein. Any such
         extension or waiver shall be valid if set forth in an instrument in
         writing signed by the party or parties to be bound thereby.

                  (c) The headings contained in this Agreement are for the
         convenience of reference purposes only and shall not affect in any way
         the meaning or interpretation of this Agreement.

                  (d) 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
         shall nevertheless remain in full force and effect so long as the
         economic or legal substance of the transactions contemplated by the
         Merger Agreement is not affected in any manner adverse to any party.
         Upon such determination that any term or other provision is invalid,
         illegal or incapable of being enforced, the parties hereto shall
         negotiate in good faith to modify this Agreement so as to effect the
         original intent of the parties as closely as possible in an acceptable
         manner.

                  (e) This Agreement, including all exhibits, disclosure
         schedules and schedules hereto, constitutes the entire agreement and
         supersedes all prior agreements and undertakings, both written and
         oral, among the parties, or any of them, with respect to the subject
         matter hereof and except as otherwise expressly provided herein.

                  (f) Neither this Agreement nor any of the rights or
         obligations hereunder may be assigned by any party (whether by
         operation of law or otherwise) without the prior written consent of the
         other parties hereto. Subject to the preceding sentence, this Agreement
         shall be binding upon and inure to the benefit of the parties hereto
         and their respective successors and permitted assigns, and no other
         Person shall have any right, benefit or obligation under this Agreement
         as a third party beneficiary or otherwise.

                  (g) The parties hereto agree that irreparable damage would
         occur in the event that any of the provisions of this Agreement were
         not performed in accordance with their specific terms. It is
         accordingly agreed that the parties hereto shall be entitled to
         specific performance of the terms hereof, this being in addition to any
         other remedy to which they are entitled at law or in equity.


                                      -13-


<PAGE>



                  (h) No failure or delay on the part of any party hereto in the
         exercise of any right hereunder shall impair such right or be construed
         to be a waiver of, or acquiescence in, any breach of any
         representation, warranty or agreement herein, nor shall any single or
         partial exercise of any such right preclude other or further exercise
         thereof or of any other right. All rights and remedies existing under
         this Agreement are cumulative to, and not exclusive of, any rights or
         remedies otherwise available.

                  (i) Notwithstanding anything herein to the contrary, no Person
         executing this Agreement who is, or becomes during the term hereof, a
         director of the Company makes any agreement or understanding herein in
         his or her capacity as such director, and the agreements set forth
         herein shall in no way restrict any director in the exercise of his or
         her fiduciary duties as a director of the Company. Each Stockholder has
         executed this Agreement solely in his or her capacity as the record or
         beneficial holder of such Stockholder's Shares or as the trustee of a
         trust whose beneficiaries are the beneficial owners of such
         Stockholder's Shares.

                  (j) Each party agrees to bear its own expenses in connection
         with the transactions contemplated hereby.

                  (k) This Agreement shall be governed and construed in
         accordance with the laws of the State of New York, without giving
         effect to any choice of law or conflict of law provision or rule that
         would cause the application of the laws of any jurisdiction other than
         the State of New York, except to the extent that the General
         Corporation Law of the State of Delaware applies as a result of the
         Company being incorporated in the State of Delaware, in which case such
         General Corporation Law shall apply.

                  (l) EACH OF THE PARTIES HERETO IRREVOCABLY AND UNCONDITIONALLY
         WAIVES TRIAL BY JURY IN ANY LEGAL ACTION OR PROCEEDING RELATING TO THIS
         AGREEMENT OR THE TRANSACTIONS CONTEMPLATED BY THE MERGER AGREEMENT AND
         FOR ANY COUNTERCLAIM THEREIN.

                  (m) This Agreement may be executed in one or more
         counterparts, and by the different parties hereto in separate
         counterparts, each of which when executed shall be deemed to be an
         original but all of which taken together shall constitute one and the
         same agreement.

                  (n) Each of the Stockholders hereby acknowledges that, for
         purposes of Title IV of the Employee Retirement Income Security Act of
         1974, as amended, IPC and IXNET may become members of a controlled
         group of corporations that includes Citicorp Venture Capital, Ltd. and
         its Affiliates.



                                      -14-


<PAGE>



                           [Signature Page to Follow]




                                      -15-


<PAGE>



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


                                  ARIZONA ACQUISITION CORP.


                                  By: /s/ Peter A. Woog
                                     ---------------------------
                                     Name:  Peter A. Woog
                                     Title: President


                                  STOCKHOLDERS:


                                   /s/ Richard Kleinknecht
                                  ---------------------------
                                   Richard Kleinknecht


                                   /s/ Peter Kleinknecht
                                  ---------------------------
                                   Peter Kleinknecht


                                  KLEINKNECHT 1997 ANNUITY TRUST


                                  By: /s/ Richard Kleinknecht
                                     ---------------------------
                                     Name:  Richard Kleinknecht
                                     Title: Agent


                                  ERIC KLEINKNECHT
                                      REVOCABLE TRUST


                                  By: /s/ Richard Kleinknecht
                                     ---------------------------
                                     Name:  Richard Kleinknecht
                                     Title: Agent




                                      -16-


<PAGE>



                                  MARK KLEINKNECHT
                                  REVOCABLE TRUST


                                  By: /s/ Richard Kleinknecht
                                     ---------------------------
                                     Name:  Richard Kleinknecht
                                     Title: Agent


                                  LISA KLEINKNECHT
                                      REVOCABLE TRUST


                                  By: /s/ Richard Kleinknecht
                                     ---------------------------
                                     Name:  Richard Kleinknecht
                                     Title: Agent


                                   /s/ Lisa Kleinknecht
                                  ---------------------------
                                  Lisa Kleinknecht


                                  PETER J. KLEINKNECHT 1996
                                      GRANTOR RETAINED
                                      ANNUITY TRUST


                                  By: /s/ Peter Kleinknecht
                                     ---------------------------
                                     Name: Peter Kleinknecht
                                     Title:


                                  MAUREEN KLEINKNECHT 1996
                                      GRANTOR RETAINED
                                      ANNUITY TRUST


                                  By: /s/ Maureen Kleinknecht
                                     ---------------------------
                                     Name:  Maureen Kleinknecht
                                     Title:



                                      -17-


<PAGE>





                                  /s/ Sabrina Kleinknecht
                                  ---------------------------
                                  Sabrina Kleinknecht



                                  /s/ Gavin Kleinknecht
                                  ---------------------------
                                  Gavin Kleinknecht



                                  /s/ Keir Kleinknecht
                                  ---------------------------
                                  Keir Kleinknecht



                                  /s/ Russell G. Kleinknecht
                                  ---------------------------
                                  Russell G. Kleinknecht


                                      -18-


<PAGE>



                                                                    SCHEDULE I


                                 EXISTING SHARES
                                 ---------------

SHAREHOLDER                                             NO. OF EXISTING SHARES
- -----------                                             ----------------------

Richard P. Kleinknecht                                       1,552,273
Peter J. Kleinknecht                                         2,240,999
Kleinknecht 1997 Annuity Trust                               1,000,000
Eric Kleinknecht 1997 Revocable Trust                          300,575
Mark Kleinknecht Revocable Trust                               300,275
Lisa Kleinknecht Revocable Trust                               300,275
Lisa Kleinknecht                                                   298
Peter J. Kleinknecht 1996 Grantor Retained Annuity Trust       155,637
Maureen Kleinknecht 1996 Grantor Retained Annuity Trust        155,637
Sabrina Kleinknecht                                            300,075
Gavin Kleinknecht                                              300,075
Keir Kleinknecht                                               300,075
Russell G. Kleinknecht                                          46,574

                                      -19-


<PAGE>



                                                                   SCHEDULE II

                                 PLEDGED SHARES
                                 --------------

Any and all shares of Existing Shares pledged by the Kleinknechts pursuant to
(a) the Pledge Agreement, dated April 28, 1994, by the Kleinknechts and
Citibank, N.A. and National Westminster Bank NJ, (b) the Pledge Agreement, dated
October 6, 1995, between the Kleinknechts and The Chase Manhattan Bank (National
Association) and (c) the Pledge Agreement, dated April 15, 1996, between Peter
J. Kleinknecht and Maureen Kleinknecht and Smith Barney Inc.

                                      -20-


                                                                  EXECUTION COPY



                    AMENDED AND RESTATED EMPLOYMENT AGREEMENT

         THIS AMENDED AND RESTATED EMPLOYMENT AGREEMENT, dated as of the 18 day
of December 1997 (the "Agreement"), by and between Richard P. Kleinknecht (the
"Executive") and IPC Information Systems, Inc., a Delaware corporation ("IPC").

         WHEREAS, following the closing (the "Closing") of the transactions
contemplated by the Agreement and Plan of Merger, dated as of the date hereof
(the "Merger Agreement"), between Arizona Acquisition Corp. and IPC, the
Executive is expected to make a major contribution to the growth, profitability
and financial strength of IPC;

         WHEREAS, IPC and the Executive are parties to an Employment Agreement
dated as of May 9, 1994, as amended by Amendment to Employment Agreement, dated
October 17, 1995 (together, the "Existing Agreement"); and

         WHEREAS, effective upon the Closing, IPC desires to retain the services
of the Executive, and the Executive desires to be retained by IPC, on the terms
and conditions set forth below.

         NOW, THEREFORE, in consideration of the premises and the mutual
promises herein contained and for other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:

         1. CERTAIN DEFINITIONS. The following terms, when used in this
Agreement, shall have the following meanings (such definitions to be equally
applicable to both singular and plural terms of the terms defined):

                  "Affiliate" means, with respect to any Person, any other
Person directly or indirectly Controlling, Controlled by, or under common
Control with such Person.

                  "Control" (including the terms "Controlled by" and "under
common Control with") means the possession, directly or indirectly or as a
trustee or executor, of the power to direct or cause the direction of the
management of a Person, whether through the ownership of stock, as a trustee or
executor, by contract or credit agreement or otherwise.

                  "Disability" means the inability of the Executive to perform
his duties and obligations for IPC as required by this Agreement, because of a
disability which is not of an apparently temporary nature, which results from
mental or bodily injury, sickness or disease or any combination thereof, and
which has lasted a period of more than 180 consecutive days or more than 180
days within any period of 365 consecutive days.

                  "Due Cause" shall mean repeated and gross negligence in
fulfilment of, or repeated failure of the Executive to fulfill his material
obligations under this Agreement, in either event after



<PAGE>



due written notice thereof, or serious willful misconduct by the Executive in
respect of his obligations hereunder. Due Cause should not include, without
limitation, (a) a refusal by the Executive of an assignment not consistent with
the status, titles and reporting requirements set forth herein or contemplated
hereby, or (b) bad judgment or negligence of the Executive, or (c) any act or
omission (other than one constituting a material breach of trust committed in
willful or reckless disregard of the interests of IPC and undertaken for
personal gain) in respect of which a determination could properly have been made
by the Board that Executive met the applicable standard of conduct prescribed
for indemnification or reimbursement under the by-laws of IPC or the laws of New
York, in each case in effect at the time of such act or omission, or (d) any act
or omission with respect to which notice of termination is given more than
twelve (12) months after the earliest date on which any non-employee director of
IPC who was not a party to such act or omission knew or reasonably should have
known of such act or omission.

                  "Person" means an individual, corporation, partnership,
limited liability company, limited partnership, association, trust,
unincorporated organization or other entity or group (as defined in Section
13(d)(3) of the Securities and Exchange Act of 1934, as amended).

                  "Subsidiary" means, with respect to any Person, any entity
which securities or other ownership interests having ordinary voting power to
elect a majority of the Board of Directors or other persons performing similar
functions are at the time directly or indirectly owned by such Person.

         2. EMPLOYMENT; TERM. IPC agrees to employ the Executive, and the
Executive hereby agrees to accept such employment by IPC, on the terms and
conditions set forth herein. Unless sooner terminated in the manner hereinafter
provided, the term of this Agreement shall commence on the date of the Closing
and shall expire on the second anniversary thereof (the "Initial Term");
PROVIDED, HOWEVER, that this Agreement shall automatically be extended for
successive one year terms, unless either party shall notify the other at least
90 days prior to the scheduled expiration of this Agreement that the Agreement
shall not be so extended (the Initial Term, plus any extensions thereof,
hereinafter referred to as the "Term"). The parties agree that (i) upon the
Closing, the Existing Agreement shall be terminated and shall have no further
force and effect with no liability to any of the parties thereto, and no further
payments shall be made thereunder, and (ii) should the Closing not occur on or
before the date the Merger Agreement is terminated by its terms, this Agreement
shall be void and have no force and effect.

         3. DUTIES.

                  3.1 OFFICE. During the Term, the Executive shall serve as Vice
Chairman of IPC, reporting to the Board of Directors of IPC (the "Board") and to
the Chairman of IPC. Nothing contained herein shall preclude IPC from
restructuring or reorganizing the functional responsibilities and/or
organizational or reporting position of various officers of IPC, including the
Executive. Subject always to the supervision and direction of the Board, the
Executive shall, from time to time, have the duties and responsibilities
consistent with his positions as Vice Chairman of IPC. The Executive shall have
no right to unilaterally hire any executive officers of IPC without the express
written consent of the Board. The Executive's office shall be located in New
York, New York.



                                       -2-

<PAGE>



                  3.2 FULL WORKING TIME. During the Term, the Executive shall
devote his full working time and his best efforts, and apply all of his skill
and experience, to the proper performance of his duties hereunder and to the
business and affairs of IPC. Except as set forth in Exhibit B hereto, the
Executive, without the prior written approval of the Board, shall not, either
directly or indirectly, engage in any business other than that specified herein
or accept any employment or business office whatsoever (including but not
limited to serving as a director ) from any other Person (but the foregoing
shall not preclude the Executive, subject to Section 7 hereof, from (i) serving
as a director of any nonprofit or charitable organization, or (ii) making an
investment in any other business, so long as in any such case the Executive does
not actively participate in such other business or organization and such
activity does not interfere with the Executive's ability to perform his duties
hereunder and does not constitute a conflict of interest with IPC or any of its
Affiliates in the reasonable opinion of the Board).

         4. SALARY AND BENEFITS.

                  4.1 BASE SALARY. IPC shall pay the Executive during the Term a
base salary at an annual rate of Four Hundred Twenty Thousand Dollars
($420,000.00) per annum, payable in accordance with the standard payroll
practices of IPC ("Base Salary"). It is understood that the Base Salary shall be
the Executive's minimum annual compensation during the Term. The Base Salary
shall be reviewed annually by the Board of Directors, or the Compensation
Committee of the Board of Directors, of IPC, and may be increased (but not
decreased) at its discretion.

                  4.2 BONUS. For each fiscal year of IPC ending during the Term,
IPC may, in its discretion, pay to the Executive a bonus based on the
performance of the Executive and IPC for such year.

                  4.3 OPTION TO PURCHASE COMPANY COMMON STOCK. The Executive
shall be granted an option to purchase shares of the common stock of IPC (the
"Option") on the Closings pursuant to the IPC Information Systems, Inc. Stock
Option Plan. The terms of the Option shall be set forth on the Option Grant
Certificate (the "Certificate") attached on Exhibit A hereto, which Certificate
is hereby incorporated by reference into this Agreement.

                  4.4 BENEFITS. The Executive shall participate, to the extent
that he is eligible therefore and subject to the terms and conditions thereof,
in any plans or programs which may be maintained by IPC for its employees and/or
senior executives generally, providing insurance, medical
benefits, retirement benefits, or other like fringe benefits.

                  4.5 VACATION. The Executive shall be entitled to eight (8)
weeks annual paid vacation each year of the Term to be earned and taken in
accordance with IPC's vacation policy.

                  4.6 EXPENSES. IPC shall pay or reimburse the Executive for
reasonable business expenses actually incurred or paid by the Executive during
the Term, in the performance of his services hereunder; provided that such
expenses are consistent with IPC policy. Such payment or reimbursement shall be
made upon presentation of expense statements or vouchers or other supporting
information acceptable to IPC and otherwise in accordance with IPC policy then
in effect.


                                       -3-

<PAGE>



                  4.7 DEDUCTIONS. IPC shall deduct from all compensation payable
hereunder such payroll, withholding and other taxes as may be required by law.

                  4.8 EXECUTIVE ASSISTANT. The Executive shall have the right,
in his sole discretion, to hire and maintain one executive assistant during the
Term, on compensation terms consistent with past practice.

         5. TERMINATION.

                  5.1 GENERAL. IPC shall have the right to terminate the
employment of Executive at any time with or without Due Cause.

                  5.2 TERMINATION UNDER CERTAIN CIRCUMSTANCES. (a) In the event
Executive's employment with IPC is terminated prior to the expiration of the
Term by reason of (i) the Executive's resignation, (ii) death, (iii) Disability
or (iv) the Executive's discharge by IPC for Due Cause, this Agreement shall
terminate including, without limitation, IPC's obligations under Section 4
hereof.

                         (b) In the event that the Executive's employment with 
IPC is terminated by IPC prior to the expiration of the Term other than by
reason of (i) the Executive's resignation, (ii) death, (iii) Disability or (iv)
the Executive's discharge by IPC for Due Cause, IPC shall continue to pay to the
Executive the Executive's Base Salary for the remainder of the Term (assuming
that the Term would expire as of the last day of the then-effective Term without
extension thereof), at such time or times as such payments would have been
provided for hereunder in the event that the Executive's employment had not
terminated hereunder. IPC and Executive hereby stipulate that the damages which
may be incurred by Executive as a consequence of any such termination of
employment are not capable of accurate measurement as of the date first above
written and that the benefits and payments provided for in this Agreement
constitute a reasonable estimate under the circumstances of all damages
sustained as a consequence of any such termination of employment, without any
requirement of proof of actual damage and without regard to the Executive's
efforts, if any, to mitigate damages. IPC and the Executive further agree that
IPC may condition the payments and benefits (if any) due under this Section on
(A) the receipt of the Executive's resignation from any and all positions which
he holds as an officer, director or committee member (unless, with respect to
resignation as a director or committee member, such resignation would be
contrary to any other document entered into in connection with the Merger
Agreement) with respect to IPC, or any Subsidiary or Affiliate thereof, and (B)
the Executive's execution and delivery within 21 days after any such termination
of employment, and the non-retraction during any statutory waiting period, of a
release in favor of IPC, in form and substance reasonably satisfactory to IPC.

                         (c) The parties hereto acknowledge that the provisions
of this Section 5 shall not affect the Option, and that the terms and conditions
affecting the Option shall be set forth separately in the Certificate.



                                       -4-

<PAGE>



         6. PROPRIETARY INFORMATION.

                  6.1 DISCLOSURE TO IPC. The Executive shall promptly disclose
to IPC in such form and manner as IPC may reasonably require (a) all operations,
systems, services, methods, developments, inventions, improvements and other
information or data pertaining to the business or activities of IPC and its
Subsidiaries and Affiliates as are conceived, originated, discovered or
developed by Executive (whether or not copyrighted or patented or capable of
being copyrighted or patented) during the Term of his employment with IPC
(whether before or after the date hereof), and (b) such information and data
pertaining to the business, operations, personnel, activities, financial
affairs, and other information relating to IPC and its Subsidiaries and
Affiliates and their respective customers, suppliers, employees and other
persons having business dealings with IPC and its Subsidiaries and Affiliates as
may be reasonably required for IPC to operate its business. It is understood
that such information is proprietary in nature and shall (as between IPC and
Executive) be for the exclusive use and benefit of IPC and shall be and remain
the property of IPC both during the Term and thereafter. If so requested by IPC,
the Executive shall execute and deliver to IPC any instrument as IPC may
reasonably request to effectuate the assignment of any such proprietary
information to IPC. Without limiting the generality of the foregoing, the
Executive hereby releases and waives and assigns to IPC any and all claims and
rights which he has against any of IPC or any Subsidiary or Affiliate thereof or
any of the technology, "knowhow," licenses or other proprietary rights or
processes of IPC or any Subsidiary or Affiliate thereof.

                  6.2 POST-EMPLOYMENT. In the event that the Executive leaves
the employ of IPC for any reason, including, without limitation, the expiration
of the Term, the Executive shall deliver to IPC (and shall not keep in his
possession, recreate or deliver to anyone other than IPC) any and all devices,
records, data, notes, reports, proposals, lists, correspondence, specifications,
drawings, blueprints, sketches, materials, equipment, other documents or
property, together with all copies thereof (in whatever medium recorded)
belonging to IPC or any Subsidiary or Affiliate thereof or any of their
respective successors or assigns.

         7. NON-COMPETITION AND NON-SOLICITATION.

                  7.1 NON-COMPETITION. During the Term and for a period of one
year thereafter, except as contemplated by this Agreement, the Merger Agreement,
the Investors Agreement dated as of the date hereof, among IPC and the other
parties named therein, the Amended and Restated Labor Pooling Agreements, the
Corporate Opportunity Agreement or the Stockholders Agreement (all of which
entered into in connection with the Merger), the Executive agrees, and shall
cause each of its respective Affiliates to agree, that any such Person shall
not, directly or indirectly, through any Person Controlled by such Executive, in
any form or manner within any jurisdiction in which IPC or its Affiliates are
doing business: (a) engage in the Business (as defined herein) for his or their
own account or for the account of any other Person, or (b) become interested in
any Person engaged in the Business as a partner, shareholder, member, principal,
agent, employee, trustee, consultant or in any other relationship or capacity;
PROVIDED, HOWEVER, that the Executive may own, directly or indirectly, solely as
a passive investment, securities of any Person if either the Executive or Peter
Kleinknecht or any of their respective Affiliates, as the case may be (1) is not
a Person in Control of, or a member of a group that Controls, such Person and
(2) does not, directly or indirectly, own 5% or more of any voting class of
securities of such Person. For purposes of this Agreement, "Business" means (i)
the


                                       -5-

<PAGE>



design, manufacture, sale, distribution and/or maintenance of voice and/or data
communications products, including, but not limited to, turret or dealerboard
systems used within the financial services, energy, transportation or emergency
services industries, Private Branch Exchange (PBX) and/or key telephone systems,
voice recording systems and video teleconferencing products; (ii) the furnishing
of communications cabling or voice or data communications products, including
the design and/or installation of local and wide area networks or the provision
of maintenance services for said communications cabling or products; (iii) the
design, furnishing, installation and/or maintenance of low voltage cabling
systems (such as would not require an electrical license for the installation
thereof); and (iv) the provision of long distance telecommunications network
services.

                  7.2 NON-SOLICITATION. During the Term and for a period of one
year thereafter, the Executive will not, directly or indirectly, use IPC
proprietary knowledge or information obtained during the course of Executive's
employment with IPC with the intention to, or which a reasonable person would
construe to (a) interfere with or disrupt any present or prospective
relationship, contractual or otherwise, between IPC and any customer, supplier,
employee, consultant or other person having business dealings with IPC, or (b)
employ or solicit the employment or engagement by others of any employee or
consultant of IPC (other than the Executive's executive assistant) who was such
an employee or consultant at the time of termination of the Executive's
employment hereunder or within one year prior thereto.

                  7.3 SCOPE. The Executive agrees that the provisions of this
Section 7 are necessary to protect the interests of IPC and are reasonable and
valid in geographical and temporal scope and in all other respects. If any court
determines that the provisions of this Section 7 or any part thereof are
unenforceable because of the duration or geographical scope of such provision,
such court will have the power to reduce the duration or scope of such
provision, as the case may be, and, in its reduced form, such provision will be
enforceable.

         8. NONDISCLOSURE. Except with the prior written consent of IPC in each
instance or as may be reasonably necessary to perform the Executive's services
hereunder, the Executive shall not disclose, use, publish, or in any other
manner reveal, directly or indirectly, at any time during or after the Term, any
confidential information relating to IPC or any Subsidiary or Affiliate thereof
acquired by him prior to, during the course of, or incident to, his employment
hereunder, except information which becomes generally available to the public
through no breach of this Agreement by the Executive. Such confidential
information shall include, but shall not be limited to, information relating to
(a) the business, operations, systems, services, know-how, trade secrets,
customer lists, pricing policies, operational methods, market plans, product
development plans, acquisition plans, design and design projects, inventions and
research projects and all other plans and processes of IPC, and (b) the
business, operations, personnel, activities, financial affairs, and other
information relating to IPC or any Subsidiary or Affiliate thereof and their
respective customers, suppliers, employees, consultants, officers, directors,
stockholders and other Persons having business dealings with IPC or any
Subsidiary or Affiliate thereof. In the event Executive is required (by oral
questions, interrogatories, requests for information or documents in legal
proceedings, subpoenas, civil investigative demand or similar process) to
disclose any such confidential information, the Executive shall provide IPC with
prompt written notice of such requirement so that IPC may seek a protective
order or other appropriate remedy and/or waive compliance with the provisions of
this Section. If, in the absence of such a protective order or other remedy or
receipt of a waiver by IPC, the Executive is nonetheless advised by his legal


                                       -6-

<PAGE>



counsel that he is legally compelled to disclose such confidential information,
the Executive may, without liability hereunder, disclose only that portion of
such confidential information which such counsel advises is legally required to
be disclosed; provided that the Executive exercises his best efforts to preserve
the confidentiality of the information, including, without limitation, by
cooperating with IPC to obtain an appropriate protective order or other reliable
assurance that confidential treatment will be accorded the confidential
information.

         9. REMEDIES FOR CERTAIN BREACHES. If the Executive commits a breach, or
threatens to commit a breach, of any of the provisions of Sections 6, 7 and/or 8
hereof, IPC shall have the following rights and remedies, each of which rights
and remedies shall be independent of the others, and shall be severally
enforceable, and all of which rights and remedies shall be in addition to, and
not in lieu of, any other rights and remedies available under law or in equity
to IPC:

                           (a) the right and remedy to have the provisions of
                  Sections 6, 7 and/or 8 enforced by any court of competent
                  jurisdiction by injunction, restraining order, specific
                  performance or other equitable relief in favor of IPC, it
                  being acknowledged and agreed that any breach or threatened
                  breach of Sections 6, 7 and/or 8 hereof by the Executive will
                  cause irreparable injury to IPC and that money damages will
                  not provide an adequate remedy to IPC; and

                           (b) to cease as of the date of such breach or
                  threatened breach any and all further payments to Executive
                  pursuant to this Agreement.

         10. ARBITRATION. Any dispute, controversy or claim, at any time arising
out of this or relating to this Agreement, or the breach, termination or
invalidity thereof (other than any dispute, controversy or claim pursuant to
Sections 6, 7, 8 and/or 9 hereof, which may, at the option of IPC, be submitted
to any court having jurisdiction), shall be referred to final and binding
arbitration by a single arbitrator appointed by mutual agreement of the parties,
but in the absence of mutual agreement, selected by the Chief Judge of the
Federal District Court for the Southern District of New York. The place of
arbitration shall be New York, NY. Any arbitral award may be entered as a
judgment in any court of competent jurisdiction.

         11. MISCELLANEOUS.

                  11.1 NOTICES. All notices, requests, claims, demands and other
communications hereunder shall be in writing and shall be given (and shall be
deemed to have been duly received if so given) by hand delivery, telegram, telex
or telecopy, or by mail (registered or certified mail, postage prepaid, return
receipt requested) or by any courier service, providing proof of delivery. All
communications hereunder shall be delivered to the respective parties at the
following addresses:

                  If to the Executive:      Richard P. Kleinknecht
                                            15 Banbury Lane
                                            Huntington, NY 11743

                  copy to:                  White & Case
                                            1155 Avenue of the Americas


                                       -7-

<PAGE>



                                            New York, NY 10036
                                            Telecopier: (212) 354-8113
                                            Attn: Edward F. Rover, Esq.

                  If to IPC:                IPC Information Systems, Inc.
                                            Wall Street Plaza
                                            88 Pine Street - 15th Floor
                                            New York, NY 10005
                                            Telecopier No.: (212) 858-7959
                                            Attn: General Counsel
                  copy to:                  Morgan, Lewis & Bockius LLP
                                            101 Park Avenue
                                            New York, NY  10178
                                            Telecopier No.: (212) 309-6273
                                            Attn: Philip H. Werner, Esq.

or to such other address as the party to whom notice is given may have
previously furnished to the other parties hereto in writing in the manner set
forth above.

                  11.2 ENTIRE AGREEMENT. Upon the Closing, this Agreement shall
constitute the entire agreement between the Executive and IPC with respect to
IPC's employment of the Executive and supersedes all prior agreements and
understandings, written or oral, with respect thereto, including,
without limitation, the Existing Agreement.

                  11.3 AMENDMENTS AND WAIVERS. Any term of this Agreement may be
amended and the observance of any term of this Agreement may be waived (either
generally or in a particular instance and either retroactively or
prospectively), only by (a) an instrument in writing and signed by the party
against whom such amendment or waiver is sought to be enforced, and (b) in the
case of IPC, such amendment or waiver also must be duly authorized by an
appropriate resolution of the Board.

                  11.4 SUCCESSORS AND ASSIGNS. IPC shall have the right to
assign this Agreement. The personal services of the Executive are the subject of
this Agreement and no part of his rights or obligations hereunder may be
assigned, transferred, pledged or encumbered by the Executive. This Agreement
shall inure to the benefit of, and be binding upon (a) the parties hereto, (b)
the heirs, administrators, executors and personal representatives of the
Executive and (c) the successors and assigns of IPC as provided herein.

                  11.5 GOVERNING LAW. This Agreement, including the validity
hereof and the rights and obligations of the parties hereunder, and all
amendments and supplements hereof and all waivers and consents hereunder, shall
be construed in accordance with and governed by the laws of the State of New
York without giving effect to any conflicts of law provisions or rule, that
would cause the application of the laws of any other jurisdiction.

                  11.6 SEVERABILITY. If any provisions of this Agreement as
applied to any part or to any circumstance shall be adjudged by a court to be
invalid or unenforceable, the same shall in


                                       -8-

<PAGE>



no way affect any other provision of this Agreement, the application of such
provision in any other circumstances or the validity or enforceability of this
Agreement.

                  11.7 SURVIVAL. The rights and obligations of IPC and Executive
pursuant to Sections 6, 7, 8, 9, 10 and this Section 11 shall survive the
termination of the Executive's employment with IPC and the expiration of the
Term.

                  11.9 CAPTIONS. The headings and captions used in this
Agreement are used for convenience only and are not to be considered in
construing or interpreting this Agreement.

                  11.10 COUNTERPARTS. This Agreement may be executed in two or
more counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.




<PAGE>



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

                                        EXECUTIVE:


                                        /s/ Richard P. Kleinknecht
                                        --------------------------------
                                        Name: Richard P. Kleinknecht


                                        IPC INFORMATION SYSTEMS, INC.


                                        By:/s/ S.T. Clontz
                                        --------------------------------
                                          Name: S.T. Clontz
                                          Title: President and C.E.O.









                                      -10-

<PAGE>



                                                                       EXHIBIT A
                                                                       ---------

                          IPC INFORMATION SYSTEMS, INC.
                                STOCK OPTION PLAN
                                GRANT CERTIFICATE

This Grant Certificate evidences the grant of an option pursuant to the
provisions of the Stock Option Plan (the "Plan") of IPC Information Systems,
Inc. (the "Company") to the individual whose name appears below (the "Grantee"),
covering the specific number of shares of Common Stock of the Company ("Stock")
set forth below, pursuant to the provisions of the Plan and on the following
express terms and conditions:

1. Name of Grantee:

         Richard Kleinknecht

2. Number of shares of Stock of the Company which are subject to this option:

         [57,720] shares [based on 1.25% of total IPC shares on a fully diluted
         basis]

3. Exercise price of shares subject to this option:

         $21 per share

4. Date of grant of this option:

         [Closing Date]

5. Vesting:

         See Section 5(b) of the Plan.

6. Termination date of this option:

         See Section 5(c) of the Plan.


The Grantee hereby acknowledges receipt of a copy of the Plan as presently in
effect. The text and all of the terms and provisions of the Plan are
incorporated herein by reference, and this option is subject to these terms and
provisions in all respects. At any time when the Grantee wishes to exercise this
option, in whole or in part, the Grantee shall submit to the Company a written
notice of exercise, specifying the exercise date and the number of shares to be
exercised. Upon exercise, the Grantee shall remit to the Company the exercise
price, plus an amount sufficient to satisfy any withholding tax obligation of
the Company that arises in connection with such exercise.

IPC INFORMATION SYSTEMS, INC.                   AGREED TO AND ACCEPTED BY:




By:_________________________                    ________________________________
                                                       Richard Kleinknecht



                                      -11-

<PAGE>




                                    EXHIBIT B
                                    ---------

PERMITTED EMPLOYMENT AND BUSINESS OFFICES

The Executive shall be permitted throughout the Term to continue his present
positions with (i) Knight Maintenance Corporation, (ii) KEC-NJ and (iii) KEC-NY,
and to perform such duties and services in relation to such positions as is
consistent with past practices.


                                      -12-


                                                                  EXECUTION COPY



                    AMENDED AND RESTATED EMPLOYMENT AGREEMENT
                    -----------------------------------------

         THIS AMENDED AND RESTATED EMPLOYMENT AGREEMENT, dated as of the 18th
day of December 1997 (the "Agreement"), by and between Peter J. Kleinknecht (the
"Executive") and IPC Information Systems, Inc., a Delaware corporation ("IPC").

         WHEREAS, following the closing (the "Closing") of the transactions
contemplated by the Agreement and Plan of Merger, dated as of the date hereof
(the "Merger Agreement"), between Arizona Acquisition Corp. and IPC, the
Executive is expected to make a major contribution to the growth, profitability
and financial strength of IPC;

         WHEREAS, IPC and the Executive are parties to an Employment Agreement
dated as of May 9, 1994, as amended by Amendment to Employment Agreement, dated
October 17, 1995 (together, the "Existing Agreement"); and

         WHEREAS, effective upon the Closing, IPC desires to retain the services
of the Executive, and the Executive desires to be retained by IPC, on the terms
and conditions set forth below.

         NOW, THEREFORE, in consideration of the premises and the mutual
promises herein contained and for other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:

         1. CERTAIN DEFINITIONS. The following terms, when used in this
Agreement, shall have the following meanings (such definitions to be equally
applicable to both singular and plural terms of the terms defined):

                  "Affiliate" means, with respect to any Person, any other
Person directly or indirectly Controlling, Controlled by, or under common
Control with such Person.

                  "Cause" means an omission, act or action or series of
omissions, acts or actions of the Executive which constitute(s), cause(s) or
result(s) in: (a) the Executive's material dishonesty including, without
limitation, theft, fraud, embezzlement, material financial misrepresentation or
other similar behavior or action in his dealings with or with respect to IPC or
any Subsidiary or Affiliate thereof or entity with which IPC, a Subsidiary or
Affiliate thereof, shall be engaged in or be attempting to engage in commerce,
(b) the conviction of the Executive for, or the Executive's entry of a plea of
guilty or nolo contendere to, the commission of a felony, (c) the willful
refusal of the Executive to follow the lawful directives of the Board (as
defined in Section 3 hereof) with respect to his duties hereunder, which
directives shall be consistent with the duties performed by the Executive
pursuant to the Existing Agreement within the last six months of performance
under such Existing Agreement which is not cured by the Executive within 30
calendar days after written notice from the Board to the Executive setting forth
with reasonable specificity the nature of such breach, or (d) the material



<PAGE>



breach of any provision of this Agreement which is not cured by the Executive
within 30 calendar days after written notice from the Board to the Executive
setting forth with reasonable specificity the nature of such breach.

                  "Control" (including the terms "Controlled by" and "under
common Control with") means the possession, directly or indirectly or as a
trustee or executor, of the power to direct or cause the direction of the
management of a Person, whether through the ownership of stock, as a trustee or
executor, by contract or credit agreement or otherwise.

                  "Disability" means the inability of the Executive to perform
his duties and obligations for IPC as required by this Agreement, because of a
disability which is not of an apparently temporary nature, which results from
mental or bodily injury, sickness or disease or any combination thereof, and
which has lasted a period of more than 180 consecutive days or more than 180
days within any period of 365 consecutive days.

                  "Person" means an individual, corporation, partnership,
limited liability company, limited partnership, association, trust,
unincorporated organization or other entity or group (as defined in Section
13(d)(3) of the Securities and Exchange Act of 1934, as amended).

                  "Subsidiary" means, with respect to any Person, any entity
which securities or other ownership interests having ordinary voting power to
elect a majority of the Board of Directors or other persons performing similar
functions are at the time directly or indirectly owned by such Person.

         2. EMPLOYMENT; TERM. IPC agrees to employ the Executive, and the
Executive hereby agrees to accept such employment by IPC, on the terms and
conditions set forth herein. Unless sooner terminated in the manner hereinafter
provided, the term of this Agreement shall commence on the date of the Closing
and shall expire on the second anniversary thereof (the "Term"). The parties
agree that (i) upon the Closing, the Existing Agreement shall be terminated and
shall have no further force and effect with no liability to any of the parties
thereto, and no further payments shall be made thereunder, and (ii) should the
Closing not occur on or before the date the Merger Agreement is terminated by
its terms, this Agreement shall be void and have no force and effect.

         3. DUTIES. During the Term, the Executive shall serve as an employee of
IPC, reporting only to the Board of Directors of IPC (the "Board") as a whole,
and not at any time to a committee thereof. The Executive shall have such duties
hereunder as shall be assigned to him from time to time by the Board, consistent
with the duties the Executive performed under the Existing Agreement; PROVIDED,
HOWEVER, that the parties hereto agree that (i) the Executive shall not be
required to devote his full working time to the performance of his duties
hereunder, and that such performance shall be required only on a reasonable "as
needed" basis, and (ii) the Executive need not be physically present at the
offices of the Company to perform any such services. The Executive shall have no
right to unilaterally hire any executive officers of IPC without the express
written consent of the Board. Notwithstanding anything which may be to the
contrary as set forth in this Agreement, the parties hereto agree and
acknowledge that the Executive shall be entitled to continue to be involved in
activities, as an officer, director and/or employee in Kleinknecht Electric
Company, Inc. (NJ) ("KEC-


                                      -2-
<PAGE>

NJ") and Kleinknecht Electric Company, Inc. (NY) ("KEC-NY"), provided that such
activities are contemplated by the Amended and Restated Corporate Opportunity
Agreement dated as of the date hereof, by and among KEC-NJ, KEC-NY, and IPC (the
"Corporate Opportunity Agreement").

         4. SALARY AND BENEFITS.

                  4.1 BASE SALARY. IPC shall pay the Executive during the Term a
base salary at an annual rate of Four Hundred Twenty Thousand Dollars
($420,000.00) per annum, payable in accordance with the standard payroll
practices of IPC ("Base Salary"). It is understood that the Base Salary shall be
the Executive's minimum annual compensation during the Term. The Base Salary
shall be reviewed annually by the Board of Directors, or the Compensation
Committee of the Board of Directors, of IPC, and may be increased (but not
decreased) at its discretion.

                  4.2 BONUS. For each fiscal year of IPC ending during the Term,
IPC may, in its discretion, pay to the Executive a bonus based on the
performance of the Executive and IPC for such year.

                  4.3 OPTION TO PURCHASE SURVIVING CORPORATION COMMON STOCK.
Immediately after giving effect to the transactions contemplated by the Merger
Agreement, the Executive shall be granted an option to purchase shares of the
common stock of IPC (the "Option") on the Closings pursuant to the IPC
Information Systems, Inc. Stock Option Plan. The terms of the Option shall be
set forth on the Option Grant Certificate (the "Certificate") attached on
Exhibit A hereto, which Certificate is hereby incorporated by reference into
this Agreement.

                  4.4 BENEFITS. The Executive shall participate, to the extent
that he is eligible therefore and subject to the terms and conditions thereof,
in any plans or programs which may be maintained by IPC for its employees and/or
senior executives generally, providing insurance, medical
benefits, retirement benefits, or other like fringe benefits.

                  4.5 COMPANY CAR. During the Term, IPC shall provide the
Executive with the use of a luxury automobile consistent with the Executive's
current arrangement with IPC with respect to the same under the Existing
Agreement.

                  4.6 LIFE INSURANCE. During the Term, IPC shall continue to pay
the premiums with respect to the $5 million life insurance policy on the life of
the Executive currently in effect under the Existing Agreement.

                  4.7 SOCIAL CLUB MEMBERSHIP. During the Term, IPC shall pay the
membership dues with respect to the Executive's social club membership which IPC
is currently providing for the benefit of the Executive under the Existing
Agreement.

                  4.8 VACATION. The Executive shall be entitled to three (3)
weeks annual paid vacation each year of the Term to be earned and taken in
accordance with IPC's vacation policy.


                                      -3-
<PAGE>


                  4.9 EXPENSES. IPC shall pay or reimburse the Executive for
reasonable business expenses actually incurred or paid by the Executive during
the Term, in the performance of his services hereunder; provided that such
expenses are consistent with IPC policy. Such payment or reimbursement shall be
made upon presentation of expense statements or vouchers or other supporting
information acceptable to IPC and otherwise in accordance with IPC policy then
in effect.

                  4.10 DEDUCTIONS. IPC shall deduct from all compensation
payable hereunder such payroll, withholding and other taxes as may be required
by law.

         5. TERMINATION.

                  5.1 GENERAL. IPC shall have the right to terminate the
employment of Executive at any time with or without Cause.

                  5.2 TERMINATION UNDER CERTAIN CIRCUMSTANCES. (a) In the event
Executive's employment with IPC is terminated prior to the expiration of the
Term by reason of (i) the Executive's resignation or (ii) the Executive's
discharge by IPC for Cause, this Agreement shall terminate including, without
limitation, IPC's obligations under Section 4 hereof.

                       (b) In the event that the Executive's employment with IPC
is terminated by IPC prior to the expiration of the Term for any reason
(including in the event of the Executive's death or Disability) other than by
reason of (i) the Executive's resignation or (ii) the Executive's discharge by
IPC for Cause, IPC shall pay to the Executive (or his estate, as the case may
be), in a lump sum within 30 days of the date of such termination, the present
value of an amount equal to the aggregate Base Salary payable for the remainder
of the Term, discounted at the rate of 6.5% per annum. IPC and Executive hereby
stipulate that the damages which may be incurred by Executive as a consequence
of any such termination of employment are not capable of accurate measurement as
of the date first above written and that the benefits and payments provided for
in this Agreement constitute a reasonable estimate under the circumstances of
all damages sustained as a consequence of any such termination of employment,
without any requirement of proof of actual damage and without regard to the
Executive's efforts, if any, to mitigate damages. IPC and the Executive further
agree that IPC may condition the payments and benefits (if any) due under this
Section on (A) the receipt of the Executive's resignation from any and all
positions which he holds as an officer, director or committee member with
respect to IPC, or any Subsidiary or Affiliate thereof, and (B) the Executive's
execution and delivery within 21 days after any such termination of employment,
and the non-retraction during any statutory waiting period, of a release in
favor of IPC, in form and substance reasonably satisfactory to IPC.

                       (c) The parties hereto acknowledge that the provisions of
this Section 5 shall not affect the Option, and that the terms and conditions
affecting the Option shall be set forth separately in the Certificate.


                                      -4-
<PAGE>


         6. PROPRIETARY INFORMATION.

                  6.1 DISCLOSURE TO IPC. The Executive shall promptly disclose
to IPC in such form and manner as IPC may reasonably require (a) all operations,
systems, services, methods, developments, inventions, improvements and other
information or data pertaining to the business or activities of IPC and its
Subsidiaries and Affiliates as are conceived, originated, discovered or
developed by Executive (whether or not copyrighted or patented or capable of
being copyrighted or patented) during the Term of his employment with IPC
(whether before or after the date hereof), and (b) such information and data
pertaining to the business, operations, personnel, activities, financial
affairs, and other information relating to IPC and its Subsidiaries and
Affiliates and their respective customers, suppliers, employees and other
persons having business dealings with IPC and its Subsidiaries and Affiliates as
may be reasonably required for IPC to operate its business. It is understood
that such information is proprietary in nature and shall (as between IPC and
Executive) be for the exclusive use and benefit of IPC and shall be and remain
the property of IPC both during the Term and thereafter. If so requested by IPC,
the Executive shall execute and deliver to IPC any instrument as IPC may
reasonably request to effectuate the assignment of any such proprietary
information to IPC. Without limiting the generality of the foregoing, the
Executive hereby releases and waives and assigns to IPC any and all claims and
rights which he has against any of IPC or any Subsidiary or Affiliate thereof or
any of the technology, "knowhow," licenses or other proprietary rights or
processes of IPC or any Subsidiary or Affiliate thereof. The parties acknowledge
that nothing in this Section 6.1 shall be construed as to prevent the Executive
from engaging in the activities set forth in the last sentence of Section 3
hereof as contemplated by the Corporate Opportunity Agreement, consistent with
the Executive's obligations to protect the proprietary information of IPC or any
Subsidiary or Affiliate thereof as set forth in this Section 6.1.

                  6.2 POST-EMPLOYMENT. In the event that the Executive leaves
the employ of IPC for any reason, including, without limitation, the expiration
of the Term, the Executive shall deliver to IPC (and shall not keep in his
possession, recreate or deliver to anyone other than IPC) any and all devices,
records, data, notes, reports, proposals, lists, correspondence, specifications,
drawings, blueprints, sketches, materials, equipment, other documents or
property, together with all copies thereof (in whatever medium recorded)
belonging to IPC or any Subsidiary or Affiliate thereof or any of their
respective successors or assigns.

         7. NON-COMPETITION AND NON-SOLICITATION.

                  7.1 NON-COMPETITION. During the Term and for a period of one
year thereafter, except as contemplated by this Agreement or the Merger
Agreement, the Investors Agreement dated as of the date hereof, among IPC and
the other parties named therein, the Amended and Restated Labor Pooling
Agreements, the Corporate Opportunity Agreement or the Stockholders Agreement
(all of which entered into in connection with the Merger), the Executive agrees,
and shall cause each of its respective Affiliates to agree, that any such Person
shall not, directly or indirectly, through any Person Controlled by such
Executive, in any form or manner within any jurisdiction in which IPC or its
Affiliates are doing business: (a) engage in the Business (as defined herein)
for his or their own account or for the account of any other Person, or (b)
become interested in any Person engaged in the Business as a partner,
shareholder, member, principal, agent, employee, trustee, consultant or in any


                                      -5-
<PAGE>


other relationship or capacity; PROVIDED, HOWEVER, that the Executive may own,
directly or indirectly, solely as a passive investment, securities of any Person
if either the Executive or Richard Kleinknecht or any of their respective
Affiliates, as the case may be (1) is not a Person in Control of, or a member of
a group that Controls, such Person and (2) does not, directly or indirectly, own
5% or more of any voting class of securities of such Person. For purposes of
this Agreement, "Business" means (i) the design, manufacture, sale, distribution
and/or maintenance of voice and/or data communications products, including, but
not limited to, turret or dealerboard systems used within the financial
services, energy, transportation or emergency services industries, Private
Branch Exchange (PBX) and/or key telephone systems, voice recording systems and
video teleconferencing products; (ii) the furnishing of communications cabling
or voice or data communications products, including the design and/or
installation of local and wide area networks or the provision of maintenance
services for said communications cabling or products; (iii) the design,
furnishing, installation and/or maintenance of low voltage cabling systems (such
as would not require an electrical license for the installation thereof); and
(iv) the provision of long distance telecommunications network services.

                  7.2 NON-SOLICITATION. During the Term and for a period of one
year thereafter, the Executive will not, directly or indirectly, use IPC
proprietary knowledge or information obtained during the course of Executive's
employment with IPC with the intention to, or which a reasonable person would
construe to (a) interfere with or disrupt any present or prospective
relationship, contractual or otherwise, between IPC and any customer, supplier,
employee, consultant or other person having business dealings with IPC, or (b)
employ or solicit the employment or engagement by others of any employee or
consultant of IPC who was such an employee or consultant at the time of
termination of the Executive's employment hereunder or within one year prior
thereto.

                  7.3 SCOPE. The Executive agrees that the provisions of this
Section 7 are necessary to protect the interests of IPC and are reasonable and
valid in geographical and temporal scope and in all other respects. If any court
determines that the provisions of this Section 7 or any part thereof are
unenforceable because of the duration or geographical scope of such provision,
such court will have the power to reduce the duration or scope of such
provision, as the case may be, and, in its reduced form, such provision will be
enforceable.

         8. NONDISCLOSURE. Except with the prior written consent of IPC in each
instance or as may be reasonably necessary to perform the Executive's services
hereunder, the Executive shall not disclose, use, publish, or in any other
manner reveal, directly or indirectly, at any time during or after the Term, any
confidential information relating to IPC or any Subsidiary or Affiliate thereof
acquired by him prior to, during the course of, or incident to, his employment
hereunder. Such confidential information shall include, but shall not be limited
to, information relating to (a) the business, operations, systems, services,
know-how, trade secrets, customer lists, pricing policies, operational methods,
market plans, product development plans, acquisition plans, design and design
projects, inventions and research projects and all other plans and processes of
IPC, and (b) the business, operations, personnel, activities, financial affairs,
and other information relating to IPC or any Subsidiary or Affiliate thereof and
their respective customers, suppliers, employees, consultants, officers,
directors, stockholders and other Persons having business dealings with IPC or
any Subsidiary


                                      -6-
<PAGE>



or Affiliate thereof. In the event Executive is required (by oral questions,
interrogatories, requests for information or documents in legal proceedings,
subpoenas, civil investigative demand or similar process) to disclose any such
confidential information, the Executive shall provide IPC with prompt written
notice of such requirement so that IPC may seek a protective order or other
appropriate remedy and/or waive compliance with the provisions of this Section.
If, in the absence of such a protective order or other remedy or receipt of a
waiver by IPC, the Executive is nonetheless advised by his legal counsel that he
is legally compelled to disclose such confidential information, the Executive
may, without liability hereunder, disclose only that portion of such
confidential information which such counsel advises is legally required to be
disclosed; provided that the Executive exercises his reasonable efforts to
preserve the confidentiality of the information, including, without limitation,
by cooperating with IPC to obtain an appropriate protective order or other
reliable assurance that confidential treatment will be accorded the confidential
information. The parties acknowledge that nothing in this Section 8 shall be
construed as to prevent the Executive from engaging in the activities set forth
in the last sentence of Section 3 hereof as contemplated by the Corporate
Opportunity Agreement, consistent with the Executive's obligations with respect
to any confidential information relating to IPC or any Subsidiary or Affiliate
thereof as set forth in this Section 8.

         9. REMEDIES FOR CERTAIN BREACHES. If the Executive commits a breach, or
threatens to commit a breach, of any of the provisions of Sections 6, 7 and/or 8
hereof, IPC shall have the following rights and remedies, each of which rights
and remedies shall be independent of the others, and shall be severally
enforceable, and all of which rights and remedies shall be in addition to, and
not in lieu of, any other rights and remedies available under law or in equity
to IPC:

                  (a) the right and remedy to have the provisions of Sections 6,
         7 and/or 8 enforced by any court of competent jurisdiction by
         injunction, restraining order, specific performance or other equitable
         relief in favor of IPC, it being acknowledged and agreed that any
         breach or threatened breach of Sections 6, 7 and/or 8 hereof by the
         Executive will cause irreparable injury to IPC and that money damages
         will not provide an adequate remedy to IPC;

                  (b) to cease as of the date of such breach, provided prior
         notice is given, all further payments to Executive pursuant to this
         Agreement, and not to resume such payments until such breach is cured
         (to the extent that such breach is subject to cure).

In the event that each of the Amended and Restated Labor Pool Agreement, dated
as of the date hereof, by and between IPC and KEC-NY, and the Amended and
Restated Labor Pool Agreement, dated as of the date hereof, by and between IPC
and KEC-NJ, are terminated, then the restrictions set forth in Sections 6 and 7
of this Agreement shall be terminated and be of no further force and effect,
unless IPC exercises its right to make the payments provided in Section 3(c) of
the Corporate Opportunity Agreement, and so long as IPC continues to make such
payments, in which case such restrictions shall survive pursuant to the terms of
this Agreement.


                                      -7-
<PAGE>


         10. INTENTIONALLY OMITTED

         11. MISCELLANEOUS.

                  11.1 NOTICES. All notices, requests, claims, demands and other
communications hereunder shall be in writing and shall be given (and shall be
deemed to have been duly received if so given) by hand delivery, telegram, telex
or telecopy, or by mail (registered or certified mail, postage prepaid, return
receipt requested) or by any courier service, providing proof of delivery. All
communications hereunder shall be delivered to the respective parties at the
following addresses:

                  If to the Executive:      Peter J. Kleinknecht
                                            c/o Kleinknecht Electric Company
                                            940 Eighth Avenue
                                            New York, NY 10019
                                            Telecopier: (212) 728-1823

                  copy to:                  Feltman, Karesh, Major & Farbman LLP
                                            152 West 57th Street
                                            New York, NY 10019
                                            Telecopier No.: (212) 586-0951
                                            Attn: Harvey Goldstein, Esq.

                  If to IPC:                IPC Information Systems, Inc.
                                            Wall Street Plaza
                                            88 Pine Street - 15th Floor
                                            New York, NY 10005
                                            Telecopier No.: (212) 858-7959
                                            Attn: General Counsel

                  copy to:                  Morgan, Lewis & Bockius LLP
                                            101 Park Avenue
                                            New York, NY  10178
                                            Telecopier No.: (212) 309-6273
                                            Attn: Philip H. Werner, Esq.

or to such other address as the party to whom notice is given may have
previously furnished to the other parties hereto in writing in the manner set
forth above.

                  11.2 ENTIRE AGREEMENT. Upon the Closing, this Agreement shall
constitute the entire agreement between the Executive and IPC with respect to
IPC's employment of the Executive and supersedes all prior agreements and
understandings, written or oral, with respect thereto, including,
without limitation, the Existing Agreement.

                  11.3 AMENDMENTS AND WAIVERS. Any term of this Agreement may be
amended and the observance of any term of this Agreement may be waived (either
generally or in a particular


                                      -8-
<PAGE>


instance and either retroactively or prospectively), only by (a) an instrument
in writing and signed by the party against whom such amendment or waiver is
sought to be enforced, and (b) in the case of IPC, such amendment or waiver also
must be duly authorized by an appropriate resolution of the Board.

                  11.4 SUCCESSORS AND ASSIGNS. IPC shall have the right to
assign this Agreement. The personal services of the Executive are the subject of
this Agreement and no part of his rights or obligations hereunder may be
assigned, transferred, pledged or encumbered by the Executive. This Agreement
shall inure to the benefit of, and be binding upon (a) the parties hereto, (b)
the heirs, administrators, executors and personal representatives of the
Executive and (c) the successors and assigns of IPC as provided herein.

                  11.5 GOVERNING LAW. This Agreement, including the validity
hereof and the rights and obligations of the parties hereunder, and all
amendments and supplements hereof and all waivers and consents hereunder, shall
be construed in accordance with and governed by the laws of the State of New
York without giving effect to any conflicts of law provisions or rule, that
would cause the application of the laws of any other jurisdiction.

                  11.6 LEGAL FEES. In the event of any action, claim or suit to
enforce the terms of this Agreement, the prevailing party shall be reimbursed
all reasonable legal fees it has incurred in the prosecution or defense of any
such action, claim or suit by the non-prevailing party hereto.

                  11.7 SEVERABILITY. If any provisions of this Agreement as
applied to any part or to any circumstance shall be adjudged by a court to be
invalid or unenforceable, the same shall in no way affect any other provision of
this Agreement, the application of such provision in any other circumstances or
the validity or enforceability of this Agreement.

                  11.8 SURVIVAL. The rights and obligations of IPC and Executive
pursuant to Sections 6, 7, 8, 9, and this Section 11 shall survive the
termination of the Executive's employment with IPC and the expiration of the
Term.

                  11.9 CAPTIONS. The headings and captions used in this
Agreement are used for convenience only and are not to be considered in
construing or interpreting this Agreement.

                  11.10 COUNTERPARTS. This Agreement may be executed in two or
more counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.


                                      -9-
<PAGE>


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

                                        EXECUTIVE:


                                        /s/ Peter J. Kleinknecht
                                        ----------------------------------
                                        Name: Peter J. Kleinknecht


                                        IPC INFORMATION SYSTEMS, INC.


                                        By:/s/ S.T. Clontz
                                        ----------------------------------
                                        Name: S.T. Clontz
                                        Title: President and C.E.O.






<PAGE>

                                                                       EXHIBIT A
                                                                       ---------
                          IPC INFORMATION SYSTEMS, INC.
                                STOCK OPTION PLAN
                                GRANT CERTIFICATE

This Grant Certificate evidences the grant of an option pursuant to the
provisions of the Stock Option Plan (the "Plan") of IPC Information Systems,
Inc. (the "Company") to the individual whose name appears below (the "Grantee"),
covering the specific number of shares of Common Stock of the Company ("Stock")
set forth below, pursuant to the provisions of the Plan and on the following
express terms and conditions:

1. Name of Grantee:

         Peter Kleinknecht

2. Number of shares of Stock of the Company which are subject to this option:

         [57,720] shares [based on 1.25% of total IPC shares on a fully diluted
         basis].

3. Exercise price of shares subject to this option:

         $21 per share

4. Date of grant of this option:

         [Closing Date]

5. Vesting:

         As set forth in Section 5(b) of the Plan; PROVIDED, HOWEVER, that "two"
         shall be inserted in lieu of "five" in each place where such number
         appears in Section 5(b) of the Plan.

6. Termination date of this option:

         As set forth in Section 5(c) of the Plan; PROVIDED, HOWEVER, that a two
         year period shall be provided in lieu of the 90- and 180- day periods
         set forth in clauses (ii) and (iii) thereof.


The Grantee hereby acknowledges receipt of a copy of the Plan as presently in
effect. The text and all of the terms and provisions of the Plan are
incorporated herein by reference, and this option is subject to these terms and
provisions in all respects. At any time when the Grantee wishes to exercise this
option, in whole or in part, the Grantee shall submit to the Company a written
notice of exercise, specifying the exercise date and the number of shares to be
exercised. Upon exercise, the Grantee shall remit to the Company the exercise
price, plus an amount sufficient to satisfy any withholding tax obligation of
the Company that arises in connection with such exercise.

IPC INFORMATION SYSTEMS, INC.                AGREED TO AND ACCEPTED BY:



By:_________________________                 __________________________
                                                  Peter Kleinknecht


                                      -11-


                                                                  EXECUTION COPY


                    AMENDED AND RESTATED LABOR POOL AGREEMENT


                  AMENDED AND RESTATED LABOR POOL AGREEMENT made as of this 18th
day of December, 1997 (the "Agreement"), by and between KLEINKNECHT ELECTRIC
COMPANY, INC. (NY) ("KEC-NY"), of 940 Eighth Avenue, New York, New York 10014,
and IPC INFORMATION SYSTEMS, INC. ("IPC") of 88 Pine Street, New York, NY 10005.

                  WHEREAS, KEC-NY and IPC heretofore were both signatories to
separate collective bargaining agreements with Local 3 IBEW, pursuant to which
agreements both corporations employed technicians who were members of said
local; and

                  WHEREAS, KEC-NY is a domestic corporation controlled by
Richard Kleinknecht and Peter Kleinknecht and their respective children; and

                  WHEREAS, in October of 1991, the stock of IPC was acquired by
Knight Ventures, Inc., a corporation also controlled by Richard Kleinknecht and
Peter Kleinknecht; and

                  WHEREAS, after such acquisition it was determined to be in the
best interests of both IPC and KEC-NY to continue to employ workers represented
by Local 3 and Local 3 (White Plains) on a pooled basis, and under the terms of
KEC-NY's collective bargaining agreement; and

                  WHEREAS, Local 3 has orally agreed to the institution and
maintenance of such a pooling arrangement; and

                  WHEREAS, the parties desire to memorialize their pooling
arrangement and wish to provide for its continuance for an extended period of
time.




<PAGE>



                  NOW, THEREFORE, the parties agree as follows:

                  1. KEC-NY and IPC acknowledge their continued intention to
employ on a pooled basis only those employees engaged by IPC and performing work
for IPC who are represented by IBEW Local 3 and Local 3 (White Plains) ("Pooled
Employees") pursuant to all of the terms and conditions of KEC-NY's collective
bargaining agreement, including, without limitation, the continued payment of
fringe benefit contributions provided for in such collective bargaining
agreement.

                  2. It is the intention of the parties that, as to Pooled
Employees while engaged in IPC work, IPC shall have the same obligations and
duties with regard to such employees as if IPC continued to have a direct
contract with Local 3 and Local 3 (White Plains). Accordingly, it is
acknowledged by IPC that it is familiar with, and has a copy of, KEC-NY's
collective bargaining agreement. IPC agrees, as to its Pooled Employees, to
assume and abide by all of the terms and conditions of such collective
bargaining agreement and, together with KEC-NY, to do all things required by
such agreement, and not to take any action which would be a breach thereof.

                  3. KEC-NY agrees to be responsible for the preparation, on
behalf of IPC, of all payrolls, payroll tax returns and union reports and fringe
benefits and for the timely making of all appropriate payments to Pooled
Employees, governmental agencies, insurance carriers, if applicable, and to
trustees of the Local 3 and Local 3 (White Plains) fringe benefit funds
(collectively, the "Payroll") for Pooled Employees engaged in IPC work under
KEC-NY's collective bargaining agreement and as to whom KEC-NY has been notified
by IPC to make such payments. The parties shall promptly supply each other with
all accurate and relevant


                                        2

<PAGE>



information and shall maintain such information for their mutual benefit in such
form as shall be required by law and/or appropriate.

                  4. (a) KEC-NY shall, after the preparation of each Payroll,
invoice IPC on a weekly basis for all appropriate payments for labor
compensation and benefits related to Pooled Employees employed by IPC pursuant
to this Agreement.

                        (b) Invoices evidencing appropriate payments shall be
paid by IPC by wire transfer within one business day of receipt by IPC of such
invoice, time being of the essence. IPC shall pay to KEC-NY a total fee of
$45,000 per month during the Term (or on a pro rata basis for any partial month
during the Term based on the proportion that the number of days in such partial
month bears to a 30-day calendar month) to be paid to KEC-NY on the first
business day of each calendar month for services rendered during each such month
during the Term for maintaining such pooling arrangement and performing its
obligations related to all Pooled Employees represented by IBEW Local 3 and
Local 3 (White Plains) and as otherwise provided herein.

                  5. IPC agrees to obtain a standby letter of credit, effective
as of the date hereof, in the aggregate amount of $1.5 million with respect to
the payments of (a) KEC-NY, pursuant to Section 3 of this Agreement, for labor
compensation and benefits related to Pooled Employees and (b) Kleinknecht
Electric Company, Inc. (NJ) ("KEC-NJ") pursuant to Section 3 of the Amended and
Restated Labor Pool Agreement, dated the date hereof, between KEC-NJ and IPC
(the "KEC-NJ Labor Pool Agreement") for labor compensation and benefits related
to Pooled Employees (as such term is defined in the KEC-NJ Labor Pool
Agreement).


                                        3

<PAGE>



                  6. IPC shall continue to be the employer of Pooled Employees
while engaged in IPC's work and IPC shall continue to be solely responsible for
the direction of its own work and for the performance of all work undertaken by
the Pooled Employees while engaged in its work, and shall, at its own cost and
expense, obtain and maintain customary insurance coverage consistent with prior
practice, which insurance shall name KEC-NY as an additional insured.

                  7. In this pooling arrangement, IPC specifically acknowledges
that it will comply with all legal requirements relating to the terms and
conditions of employment of any Pooled Employee employed pursuant to this
pooling arrangement, including, without limitation, the applicable provisions of
OSHA, the Fair Labor Standards Act, the Fair Employment Practices law and the
Equal Pay Act. In addition, IPC agrees not to discriminate against any employee
or applicant for employment because of race, creed, color, sex, affectional
preference, or national origin. IPC shall take affirmative action to afford
equal employment opportunities without such discrimination. Such action shall be
taken with reference to recruitment, employment, job assignment, promotion,
demotion, transfer, layoff, termination, rates of pay and other forms of
compensation and selection for training, including apprenticeship and on-the-job
training.

                  8. To the maximum extent permitted by law, IPC hereby assumes
and agrees to indemnify and hold KEC-NY harmless against the entire
responsibility and liability for fines, penalties, and any and all damage
(direct and consequential) and injury (including death) of any kind or nature
whatsoever, to all persons, whether or not employees of KEC-NY or IPC, and all
property, tangible and intangible, and damage thereto, caused by, resulting from
or arising out of, or in connection with the following:

                           (a)      the information supplied hereunder by IPC;


                                        4

<PAGE>



                           (b)      the work performed by its employees,
                                    including any Pooled Employees for IPC as
                                    provided hereunder;

                           (c)      any occurrence which happens in or about the
                                    area where the IPC work is performed and
                                    related to the performance of work for IPC
                                    by the Pooled Employees as provided
                                    hereunder; and

                           (d)      any breach of the obligations of IPC under
                                    this Agreement by IPC.

Excluded from IPC's responsibility and liability shall be such fines, penalties
and other damage caused by KEC-NY's negligence or breach hereof, or any claim
related to the work performed by KEC-NY with its employees, including, without
limitation, any Pooled Employee to the extent that any such Pooled Employee is
performing services for KEC-NY.

                  9. To the maximum extent permitted by law, KEC-NY hereby
assumes and agrees to indemnify and hold IPC harmless against the entire
responsibility and liability for fines, penalties, and any and all damage
(direct and consequential) and injury (including death) of any kind or nature
whatsoever, to all persons, whether or not employees of IPC or KEC-NY, and all
property, tangible and intangible, and damage thereto, caused by or resulting
from or arising out of, or in connection with

                           (a)      the information supplied hereunder by
                                    KEC-NY;

                           (b)      the work performed by the employees of
                                    KEC-NY, including, without limitation, any
                                    Pooled Employee to the


                                        5

<PAGE>



                                    extent that any such Pooled Employee is
                                    performing services for KEC-NY;

                           (c)      any occurrences which happen in or about the
                                    area where KEC-NY work is performed and
                                    related to the performance of work for
                                    KEC-NY by its employees;

                           (d)      any breach of the obligations of KEC-NY
                                    under this Agreement by KEC-NY.

Excluded from KEC-NY's responsibility and liability shall be such fines,
penalties and other damage caused by IPC's negligence or breach hereof or any
claim related to the work performed for IPC by Pooled Employees employed
hereunder.

                  10. (a) IPC shall indemnify, defend and hold harmless, to the
fullest extent permitted under applicable law, the individual shareholders of
KEC-NY (for purposes of this Agreement, collectively referred to as the "KEC-NY
Indemnitees") from and against each Loss that arises from a reduction in the
value of the capital stock of such KEC-NY Indemnitees because of a final
determination that the KEC-NY Indemnitees are subject to multiemployer pension
plan withdrawal liability under Title IV of the Employee Retirement Income
Security Act of 1974, as amended (and the rules and regulations promulgated
thereunder) ("ERISA"), due solely to actions taken by IPC, including, without
limitation, IPC's failure, in whole or in part, to employ members of IBEW Local
3 or Local 3 (White Plains), as the case may be, or the termination or breach by
IPC of this Agreement (it being understood that such reduction in the value of
such capital stock shall be deemed not to have occurred if and to the extent
that any such withdrawal liability shall have been satisfied by IPC); provided,
however, that the


                                        6

<PAGE>



maximum amount of Losses for which IPC shall have an obligation to indemnify
under this Agreement and the KEC-NJ Labor Pool Agreement shall not exceed $5
million in the aggregate (the "Cap"). All Losses arising from this Agreement
that exceed the Cap shall be the sole responsibility of the KEC-NY Indemnitees.
For purposes of this Section, "Losses" means any actual losses, damages,
liabilities, costs or expenses (including reasonable attorneys' fees and
disbursements), judgments, fines, penalties, and amounts paid in settlement; it
being expressly understood that Losses shall not include any fines, penalties,
interest payments, attorney's fees and disbursements, court costs or liquidated
damages assessed as a result of any failure of KEC-NY to comply with the
requirements of ERISA or cooperate with IPC in compromising or defending such
Loss in a timely and reasonable manner (unless such fines, penalties, interest
payments, attorney's fees and disbursements, court costs or liquidated damages
are due to IPC's failure to make payments under this Section 10(a) in a timely
manner). Notwithstanding anything to the contrary contained in this Agreement,
the obligations of IPC to indemnify the KEC-NY Indemnitees under this Section 10
shall terminate on the date on which the statute of limitations under applicable
law expires with respect to any applicable claim for a Loss hereunder. KEC-NY
hereby represents and warrants to IPC that, other than Richard Kleinknecht and
Peter Kleinknecht and their respective children, there are no owners of capital
stock of KEC-NY.

                        (b) Promptly after receipt by the KEC-NY Indemnitees of
notice of any demand, claim or circumstance received by the KEC-NY Indemnitees
on or after the date on which this Agreement became effective that, with or
without the lapse of time, the KEC-NY Indemnitees have reason to believe may
result in any such Losses described in Section 10(a), the


                                        7

<PAGE>



KEC-NY Indemnitees shall give notice thereof to IPC, which notice shall describe
such demand, claim or circumstance in reasonable detail and shall indicate the
amount (estimated, if necessary) of the Losses that have been or may be suffered
by the KEC-NY Indemnitees . To the extent any such demand, claim or circumstance
relates to Losses within the Cap, IPC shall have the exclusive right to
compromise or defend, by its own counsel, any such demand, claim or circumstance
and all fees and expenses related thereto shall be borne by IPC. The KEC-NY
Indemnitees shall cooperate in the compromise of, or defense against, such
demand, claim or circumstance and shall make available to IPC and its counsel
any books, records or other documents within its control that are necessary or
appropriate for such compromise or defense.

                  11. The term of this Agreement (the "Term") shall be for a
period of twenty years from the date hereof, except that this Agreement may be
terminated as provided below:

                           (a)      IPC may terminate this Agreement at any
                                    time, with or without cause, upon ninety
                                    days' prior notice to KEC-NY.

                           (b)      Either party may terminate this Agreement
                                    upon thirty (30) days' notice upon the
                                    happening of any of the following
                                    conditions:

                                    (i)      In the event of IPC's failure to
                                             reimburse KEC-NY for Payroll and
                                             such failure continues for 3
                                             business days after IPC's actual
                                             receipt of KEC-NY's written notice
                                             of such failure to pay;

                                    (ii)     In the event of a material default
                                             by the other party in the
                                             performance of its obligations
                                             hereunder,


                                        8

<PAGE>



                                             which default is not cured within
                                             ten days after the giving of
                                             written notice thereof;

                                    (iii)    In the event the other party files
                                             a voluntary petition under the
                                             Bankruptcy Code, or for other
                                             debtor or insolvency relief;

                                    (iv)     In the event Local 3 and/or Local 3
                                             (White Plains) IBEW withdraws its
                                             consent to or objects to the
                                             continuation of the pooling
                                             arrangement.

                  The termination or expiration of this Agreement under this
Section or under Section 14 shall not affect the rights and obligations
previously accrued.

                  The foregoing notwithstanding, this Agreement may be
terminated by either party on 90 days' prior notice without cost or penalty in
the event KEC-NY shall determine to cease those operations which require that it
maintain a collective bargaining agreement.

                  12. Any notice required under this Agreement shall be in
writing and shall be served by certified mail, return receipt requested,
directed to the parties, as follows:

                  IF TO KEC-NY:

                         Kleinknecht Electric Company, Inc. (NY)
                         940 Eighth Avenue
                         New York, New York 10014
                         Attention: Chairman or President

                  with copy to:

                         Chief Financial Officer

                  IF TO IPC:



                                        9

<PAGE>



                         IPC Information Systems, Inc.
                         88 Pine Street
                         New York, NY 10005
                         Attention: Chairman and General Counsel


Notices otherwise validly given shall be effective two days after the mailing
notwithstanding the date of actual receipt, or the failure or refusal of a party
to sign the return receipt. The address of either party may be changed by such
party giving notice to the other.

                  13. This is an agreement which is intended to be applicable
solely to the sharing of a common pool of skilled labor. By virtue of this
pooling agreement, the parties hereto do not intend to create any partnership or
joint venture and neither party shall have any interest in the other party's
work, business or opportunities. It is further agreed that by virtue of this
pooling agreement KEC-NY is not to be deemed or held out to be a subcontractor
of IPC with regard to IPC's work unless otherwise agreed to in writing by the
parties.

                  14. IPC agrees during the term of this Agreement to be bound
by industry-wide modifications and extensions of the KEC-NY collective
bargaining agreement, provided that no such modification or extension limits the
continued use or benefit of this Agreement. Any modifications of the KEC-NY
collective bargaining agreement which are individually bargained with Local 3 or
Local 3 (White Plains) shall be first subject to prior consultation with IPC to
the extent that such modifications affect IPC and its Pooled Employees and/or
the continued use or benefit of this Agreement. IPC shall have the right to
terminate this Agreement in the event that any modifications of the collective
bargaining agreement between KEC-NY and each of Local 3 and Local 3 (White
Plains) adversely affect IPC's continued use of the rights under this Agreement
or the substantive and/or economic benefits provided therein. Such right


                                       10

<PAGE>



to terminate by IPC shall be exercised by written notice to KEC-NY within 30
days after the later to occur of (a) receipt of written notice by IPC of such
modifications, (b) the applicable parties have agreed to such modifications or
(c) such modifications have become effective.

                  15. In the event that an arbitration or legal proceeding is
initiated between KEC-NY and Local 3, then, to the extent that such proceeding
affects the IPC employees or IPC's rights or obligations hereunder, IPC shall be
given notice of the filing of such grievance or legal proceeding in accordance
with the notice provisions hereof and shall be given the opportunity to
participate in and defend its interests. If such notice and opportunity are
provided, IPC shall be bound by the determination made in such proceeding as if
IPC were a party.

                  16. Except with regard to Local 3 and Local 3 (White Plains)
IBEW and the Trustees of the affiliate Local 3 and Local 3 (White Plains) Fringe
Benefit Funds, this Agreement is not intended to create any rights in any
person, firm or corporation not a party to this Agreement.

                  17. The rights and obligations of this Agreement are not
assignable. In the event of any merger or consolidation of either party, or upon
the appointment of a receiver for the property of either of the parties hereto,
this Agreement shall, at the option of the other party, immediately terminate.

                  18. The failure to insist upon strict compliance with any of
the terms, covenants or conditions hereof shall not be deemed a waiver of such
term, covenant or condition. A waiver of any provision must be made in writing
and signed by the party against whom its enforcement is sought. A waiver at any
one or more times shall not be deemed a waiver at any other time or times.


                                       11

<PAGE>



                  19. A determination that any provision of this Agreement is
invalid shall not affect the validity or enforceability of any other provision.

                  20. This Agreement contains the entire understanding of the
parties relating to the subject matter hereof and supersedes all prior
agreements relating to the subject matter hereof. No modifications of this
Agreement shall be valid unless made in writing and signed by the parties.

                  21. This Agreement shall be governed by and construed pursuant
to the laws of the State of New York as an agreement made and performed in the
State of New York, without regard to any principle of conflicts of law that
would cause the application of the laws of any jurisdiction other than the State
of New York.

                  22. It is a condition precedent to the effectiveness of this
Agreement that the "Merger" under and as defined in the Agreement and Plan of
Merger, dated the date hereof, 1997, by and between Arizona Acquisition Corp.
and IPC shall have been consummated.



                                       12

<PAGE>


                  IN WITNESS WHEREOF, the parties hereto have caused this
Agreement to be signed by their duly authorized officers the day and year first
above written.

                                        KLEINKNECHT ELECTRIC COMPANY, INC. (NY)



                                        By: /s/ Peter J. Kleinknecht
                                           ----------------------------
                                             Peter J. Kleinknecht, President

                                        IPC INFORMATION SYSTEMS, INC.



                                        By: /s/ S.T. Clontz
                                           ----------------------------
                                             S.T. Clontz, President


                                       13


                                                                  EXECUTION COPY


                    AMENDED AND RESTATED LABOR POOL AGREEMENT


                  AMENDED AND RESTATED LABOR POOL AGREEMENT made as of this 18th
day of December, 1997 (the "Agreement"), by and between KLEINKNECHT ELECTRIC
COMPANY, INC. (NJ) ("KEC-NJ"), of 202 Rutgers Street, Maplewood, New Jersey
07040, and IPC INFORMATION SYSTEMS, INC. ("IPC") of 88 Pine Street, New York, NY
10005.

                  WHEREAS, KEC-NJ and IPC heretofore were both signatories to
separate collective bargaining agreements with Local 164T IBEW, pursuant to
which agreements both corporations employed technicians who were members of said
local; and

                  WHEREAS, KEC-NJ is a domestic corporation controlled by
Richard Kleinknecht and Peter Kleinknecht and their respective children; and

                  WHEREAS, in October of 1991, the stock of IPC was acquired by
Knight Ventures, Inc., a corporation also controlled by Richard Kleinknecht and
Peter Kleinknecht; and

                  WHEREAS, after such acquisition it was determined to be in the
best interests of both IPC and KEC-NJ to continue to employ Local 164T members
on a pooled basis, and under the terms of KEC-NJ's collective bargaining
agreement; and

                  WHEREAS, Local 164T has orally agreed to the institution and
maintenance of such a pooling arrangement; and

                  WHEREAS, the parties desire to memorialize their pooling
arrangement and wish to provide for its continuance for an extended period of
time.

                  NOW, THEREFORE, the parties agree as follows:




<PAGE>



                  1. KEC-NJ and IPC acknowledge their continued intention to
employ on a pooled basis only those employees engaged by IPC and performing work
for IPC who are represented by IBEW Local 164T, ("Pooled Employees") pursuant to
all of the terms and conditions of KEC-NJ's collective bargaining agreement,
including, without limitation, the continued payment of fringe benefit
contributions provided for in such collective bargaining agreement.

                  2. It is the intention of the parties that, as to Pooled
Employees while engaged in IPC work, IPC shall have the same obligations and
duties with regard to such employees as if IPC continued to have a direct
contract with Local 164T. Accordingly, it is acknowledged by IPC that it is
familiar with, and has a copy of, KEC-NJ's collective bargaining agreement. IPC
agrees, as to its Pooled Employees, to assume and abide by all of the terms and
conditions of such collective bargaining agreement and, together with KEC-NJ, to
do all things required by such agreement, and not to take any action which would
be a breach thereof.

                  3. KEC-NJ agrees to be responsible for the preparation, on
behalf of IPC, of all payrolls, payroll tax returns and union reports and fringe
benefits and for the making of all appropriate payments to Pooled Employees,
governmental agencies, insurance carriers, if applicable, and to trustees of the
Local 164T fringe benefit funds (collectively, the "Payroll") for Pooled
Employees engaged in IPC work under KEC-NJ's collective bargaining agreement and
as to whom KEC-NJ has been notified by IPC to make such payments. The parties
shall promptly supply each other with all accurate and relevant information and
shall maintain such information for their mutual benefit in such form as shall
be required by law and/or appropriate.


                                      - 2 -

<PAGE>



                  4. (a) KEC-NJ shall, after the preparation of each Payroll,
invoice IPC on a weekly basis for all appropriate payments for labor
compensation and benefits related to Pooled Employees employed by IPC pursuant
to this Agreement.

                        (b) Invoices evidencing appropriate payments shall be
paid by IPC by wire transfer within one business day of receipt by IPC of such
invoice, time being of the essence. IPC shall pay to KEC-NJ a total fee of
$5,000 per month during the Term (or on a pro rata basis for any partial month
during the Term based on the proportion that the number of days in such partial
month bears to a 30-day calendar month) to be paid to KEC-NJ on the first
business day of each calendar month for services rendered during each such month
during the Term for maintaining such pooling arrangement and performing its
obligations related to all Pooled Employees represented by IBEW Local 164T and
as otherwise provided herein.

                  5. IPC agrees to obtain a standby letter of credit, effective
as of the date hereof, in the aggregate amount of $1.5 million with respect to
the payments of (a) KEC-NJ, pursuant to Section 3 of this Agreement, for labor
compensation and benefits related to Pooled Employees and (b) Kleinknecht
Electric Company, Inc. (NY) ("KEC-NY"), pursuant to Section 3 of the Amended and
Restated Labor Pool Agreement, dated the date hereof, between KEC-NY and IPC
(the "KEC-NY Labor Pool Agreement") for labor compensation and benefits related
to Pooled Employees (as such term is defined in the KEC-NY Labor Pool
Agreement).

                  6. IPC shall continue to be the employer of Pooled Employees
while engaged in IPC's work and IPC shall continue to be solely responsible for
the direction of its own work and for the performance of all work undertaken by
the Pooled Employees while engaged in its


                                      - 3 -

<PAGE>



work, and shall, at its own cost and expense, obtain and maintain customary
insurance coverage consistent with prior practice, which insurance shall name
KEC-NJ as an additional insured.

                  7. In this pooling arrangement, IPC specifically acknowledges
that it will comply with all legal requirements relating to the terms and
conditions of employment of any Pooled Employee employed pursuant to this
pooling arrangement, including, without limitation, the applicable provisions of
OSHA, the Fair Labor Standards Act, the Fair Employment Practices law and the
Equal Pay Act. In addition, IPC agrees not to discriminate against any employee
or applicant for employment because of race, creed, color, sex, affectional
preference, or national origin. IPC shall take affirmative action to afford
equal employment opportunities without such discrimination. Such action shall be
taken with reference to recruitment, employment, job assignment, promotion,
demotion, transfer, layoff, termination, rates of pay and other forms of
compensation and selection for training, including apprenticeship and on-the-job
training.

                  8. To the maximum extent permitted by law, IPC hereby assumes
and agrees to indemnify and hold KEC-NJ harmless against the entire
responsibility and liability for fines, penalties, and any and all damage
(direct and consequential) and injury (including death) of any kind or nature
whatsoever, to all persons, whether or not employees of KEC-NJ or IPC, and all
property, tangible and intangible, and damage thereto, caused by, resulting from
or arising out of, or in connection with

                           (a)      the information supplied hereunder by IPC;

                           (b)      the work performed by its employees,
                                    including any Pooled Employees for IPC as
                                    provided hereunder;


                                      - 4 -

<PAGE>



                           (c)      any occurrence which happens in or about the
                                    area where the IPC work is performed and
                                    related to the performance of work for IPC
                                    by the Pooled Employees as provided
                                    hereunder; and

                           (d)      any breach of the obligations of IPC under
                                    this Agreement by IPC.

Excluded from IPC's responsibility and liability shall be such fines, penalties
and other damage caused by KEC-NJ's negligence or breach hereof, or any claim
related to the work performed by KEC-NJ with its employees, including, without
limitation, any Pooled Employee to the extent that any such Pooled Employee is
performing services for KEC-NJ.

                  9. To the maximum extent permitted by law, KEC-NJ hereby
assumes and agrees to indemnify and hold IPC harmless against the entire
responsibility and liability for fines, penalties, and any and all damage
(direct and consequential) and injury (including death) of any kind or nature
whatsoever, to all persons, whether or not employees of IPC or KEC-NJ, and all
property, tangible and intangible, and damage thereto, caused by or resulting
from or arising out of, or in connection with the following:

                           (a)      the information supplied hereunder by
                                    KEC-NJ;

                           (b)      the work performed by the employees of
                                    KEC-NJ, including, without limitation, any
                                    Pooled Employee to the extent that any such
                                    Pooled Employee is performing services for
                                    KEC-NJ;


                                      - 5 -

<PAGE>



                           (c)      any occurrences which happen in or about the
                                    area where KEC-NJ work is performed and
                                    related to the performance of work for
                                    KEC-NJ by its employees;

                           (d)      any breach of the obligations of KEC-NJ
                                    under this Agreement by KEC-NJ.

Excluded from KEC-NJ's responsibility and liability shall be such fines,
penalties and other damage caused by IPC's negligence or breach hereof or any
claim related to the work performed for IPC by Pooled Employees employed
hereunder.

                  10. (a) IPC shall indemnify, defend and hold harmless, to the
fullest extent permitted under applicable law, the individual shareholders of
KEC-NJ (for purposes of this Agreement, collectively referred to as the "KEC-NJ
Indemnitees") from and against each Loss that arises from a reduction in the
value of the capital stock of such KEC-NJ Indemnitees because of a final
determination that the KEC-NJ Indemnitees are subject to multiemployer pension
plan withdrawal liability under Title IV of the Employee Retirement Income
Security Act of 1974, as amended (and the rules and regulations promulgated
thereunder) ("ERISA"), due solely to actions taken by IPC, including, without
limitation, IPC's failure, in whole or in part, to employ members of Local 164T,
or the termination or breach by IPC of this Agreement (it being understood that
such reduction in the value of such capital stock shall be deemed not to have
occurred if and to the extent that any such withdrawal liability shall have been
satisfied by IPC); provided, however, that the maximum amount of Losses for
which IPC shall have an obligation to indemnify under this Agreement and the
KEC-NY Labor Pool Agreement shall not exceed $5 million in the aggregate (the
"Cap"). All Losses arising from this Agreement that exceed the


                                      - 6 -

<PAGE>



Cap shall be the sole responsibility of the KEC-NJ Indemnitees. For purposes of
this Section, "Losses" means any actual losses, damages, liabilities, costs or
expenses (including reasonable attorneys' fees and disbursements), judgments,
fines, penalties, and amounts paid in settlement; it being expressly understood
that Losses shall not include any fines, penalties, interest payments,
attorney's fees and disbursements, court costs or liquidated damages assessed as
a result of any failure of KEC-NJ to comply with the requirements of ERISA or
cooperate with IPC in compromising or defending such Loss in a timely and
reasonable manner (unless such fines, penalties, interest payments, attorney's
fees and disbursements, court costs or liquidated damages are due to IPC's
failure to make payments under this Section 10(a) in a timely manner).
Notwithstanding anything to the contrary contained in this Agreement, the
obligations of IPC to indemnify the KEC-NJ Indemnitees under this Section 10
shall terminate on the date on which the statute of limitations under applicable
law expires with respect to any applicable claim for a Loss hereunder. KEC-NJ
hereby represents and warrants to IPC that, other than Richard Kleinknecht,
Peter Kleinknecht and their respective children and Joe Iadanza and Joe
Lombardi, there are no owners of capital stock of KEC-NJ.

                        (b) Promptly after receipt by the KEC-NJ Indemnitees of
notice of any demand, claim or circumstance received by the KEC-NJ Indemnitees
on or after the date on which this Agreement became effective that, with or
without the lapse of time, the KEC-NJ Indemnitees have reason to believe may
result in any such Losses described in Section 10(a), the KEC-NJ Indemnitees
shall give notice thereof to IPC, which notice shall describe such demand, claim
or circumstance in reasonable detail and shall indicate the amount (estimated,
if necessary) of the Losses that have been or may be suffered by the KEC-NJ
Indemnitees. To the extent any


                                      - 7 -

<PAGE>



such demand, claim or circumstance relates to Losses within the Cap, IPC shall
have the exclusive right to compromise or defend, by its own counsel, any such
demand, claim or circumstance and all fees and expenses related thereto shall be
borne by IPC. The KEC-NJ Indemnitees shall cooperate in the compromise of, or
defense against, such demand, claim or circumstance and shall make available to
IPC and its counsel any books, records or other documents within its control
that are necessary or appropriate for such compromise or defense.

                  11. The term of this Agreement (the "Term") shall be for a
period of twenty years from the date hereof, except that this Agreement may be
terminated as provided below:

                           (a)      IPC may terminate this Agreement at any
                                    time, with or without cause, upon ninety
                                    days' prior notice to KEC-NJ.

                           (b)      Either party may terminate this Agreement
                                    upon thirty (30) days' notice upon the
                                    happening of any of the following
                                    conditions:

                                    (i)      In the event of IPC's failure to
                                             reimburse KEC-NJ for Payroll and
                                             such failure continues for 3
                                             business days after IPC's actual
                                             receipt of KEC-NJ's written notice
                                             of such failure to pay;

                                    (ii)     In the event of a material default
                                             by the other party in the
                                             performance of its obligations
                                             hereunder, which default is not
                                             cured within ten days after the
                                             giving of written notice thereof;


                                      - 8 -

<PAGE>



                                    (iii)    In the event the other party files
                                             a voluntary petition under the
                                             Bankruptcy Code, or for other
                                             debtor or insolvency relief;

                                    (iv)     In the event Local 164T IBEW
                                             withdraws its consent to or objects
                                             to the continuation of the pooling
                                             arrangement.

                  The termination or expiration of this Agreement under this
Section or under Section 14 shall not affect the rights and obligations
previously accrued.

                  The foregoing notwithstanding, this Agreement may be
terminated by either party on 90 days' prior notice without cost or penalty in
the event KEC-NJ shall determine to cease those operations which require that it
maintain a collective bargaining agreement.

                  12. Any notice required under this Agreement shall be in
writing and shall be served by certified mail, return receipt requested,
directed to the parties, as follows:

                  IF TO KEC-NJ:

                          Kleinknecht Electric Company, Inc. (NJ)
                          202 Rutgers Street
                          Maplewood, NJ 07040
                          Attention: Chairman or President

                  IF TO IPC:

                          IPC Information Systems, Inc.
                          88 Pine Street
                          New York, NY 10005
                          Attention: Chairman and General Counsel




                                      - 9 -

<PAGE>



Notices otherwise validly given shall be effective two days after the mailing
notwithstanding the date of actual receipt, or the failure or refusal of a party
to sign the return receipt. The address of either party may be changed by such
party giving notice to the other.

                  13. This is an agreement which is intended to be applicable
solely to the sharing of a common pool of skilled labor. By virtue of this
pooling agreement, the parties hereto do not intend to create any partnership or
joint venture and neither party shall have any interest in the other party's
work, business or opportunities. It is further agreed that by virtue of this
pooling agreement KEC-NJ is not to be deemed or held out to be a subcontractor
of IPC with regard to IPC's work unless otherwise agreed to in writing by the
parties.

                  14. IPC agrees during the term of this Agreement to be bound
by industry-wide modifications and extensions of the KEC-NJ collective
bargaining agreement, provided that no such modification or extension limits the
continued use or benefit of this Agreement. Any modifications of the KEC-NJ
collective bargaining agreement which are individually bargained with Local 164T
shall be first subject to prior consultation with IPC to the extent that such
modifications affect IPC and its Pooled Employees and/or the continued use or
benefit of this Agreement. IPC shall have the right to terminate this Agreement
in the event that any modifications of the collective bargaining agreement
between KEC-NJ and Local 164T adversely affect IPC's continued use of the rights
under this Agreement or the substantive and/or economic benefits provided
therein. Such right to terminate by IPC shall be exercised by written notice to
KEC-NJ within 30 days after the later to occur of (a) receipt of written notice
by IPC of such modifications, (b) the applicable parties have agreed to such
modifications or (c) such modifications have become effective.


                                     - 10 -

<PAGE>



                  15. In the event that an arbitration or legal proceeding is
initiated between KEC-NJ and Local 164T, then, to the extent that such
proceeding affects the IPC employees or IPC's rights or obligations hereunder,
IPC shall be given notice of the filing of such grievance or legal proceeding in
accordance with the notice provisions hereof and shall be given the opportunity
to participate in and defend its interests. If such notice and opportunity are
provided, IPC shall be bound by the determination made in such proceeding as if
IPC were a party.

                  16. Except with regard to Local 164T IBEW and the Trustees of
the affiliate Local 164T Fringe Benefit Funds, this Agreement is not intended to
create any rights in any person, firm or corporation not a party to this
Agreement.

                  17. The rights and obligations of this Agreement are not
assignable. In the event of any merger or consolidation of either party, or upon
the appointment of a receiver for the property of either of the parties hereto,
this Agreement shall, at the option of the other party, immediately terminate.

                  18. The failure to insist upon strict compliance with any of
the terms, covenants or conditions hereof shall not be deemed a waiver of such
term, covenant or condition. A waiver of any provision must be made in writing
and signed by the party against whom its enforcement is sought. A waiver at any
one or more times shall not be deemed a waiver at any other time or times.

                  19. A determination that any provision of this Agreement is
invalid shall not affect the validity or enforceability of any other provision.

                  20. This Agreement contains the entire understanding of the
parties relating to the subject matter hereof and supersedes all prior
agreements relating to the subject matter


                                     - 11 -

<PAGE>



hereof. No modifications of this Agreement shall be valid unless made in writing
and signed by the parties.

                  21. This Agreement shall be governed by and construed pursuant
to the laws of the State of New York as an agreement made and performed in the
State of New York, without regard to any principle of conflicts of law that
would cause the application of the laws of any jurisdiction other than the State
of New York.

                  22. It is a condition precedent to the effectiveness of this
Agreement that the "Merger" under and as defined in the Agreement and Plan of
Merger, dated the date hereof, by and between Arizona Acquisition Corp. and IPC,
shall have been consummated.


                                     - 12 -

<PAGE>


                  IN WITNESS WHEREOF, the parties hereto have caused this
Agreement to be signed by their duly authorized officers the day and year first
above written.
                                   KLEINKNECHT ELECTRIC COMPANY, INC. (NJ)


                                   By: /s/ Richard P. Kleinknecht
                                      ------------------------------
                                        Richard P. Kleinknecht, President


                                   IPC INFORMATION SYSTEMS, INC.


                                   By: /s/ S.T. Clontz
                                      ------------------------------
                                        S.T. Clontz, President



                                     - 13 -


                                                                  EXECUTION COPY


              AMENDED AND RESTATED CORPORATE OPPORTUNITY AGREEMENT


         AMENDED AND RESTATED CORPORATE OPPORTUNITY AGREEMENT, made as of
December 18, 1997 (the "Agreement"), by and among KLEINKNECHT ELECTRIC COMPANY,
INC. ("KEC-NJ") (formerly known as GK Telecommunications Inc.), a New Jersey
corporation located at 202 Rutgers Street, Maplewood, New Jersey 07040,
KLEINKNECHT ELECTRIC COMPANY, INC. ("KEC-NY") (formerly George Kleinknecht,
Inc.), a New York corporation located at 940 Eighth Avenue, New York, New York
10019 (singularly and collectively, "KEC") and IPC INFORMATION SYSTEMS INC.
("IPC"), located at 88 Pine Street, New York, New York 10005.

         WHEREAS, IPC is engaged in the business of, among other things,
engineering, manufacturing, developing, marketing, installing and servicing
specialized telecommunication systems, which includes the design, implementation
and servicing of local and wide area networks; and

         WHEREAS, KEC-NJ and KEC-NY are each in the business of electrical
contracting which, among other things, includes Cabling Work. For purposes of
this Agreement, Cabling Work means installation of low voltage wire, cable and
related devices intended to serve as local or wide area network for voice, data
and/or video communication, which installation does not require such work to be
performed by a licensed electrician but specifically excludes installations
intended to transmit signaling in connection with mechanical controls (e.g.,
HVAC), fire safety and security systems; and




<PAGE>



         WHEREAS, IPC is also involved in Cabling Work, KEC is desirous of
continuing to receive referrals from IPC for electrical work and IPC is desirous
of KEC not competing for certain Cabling Work;

         NOW, THEREFORE, the parties agree as follows:

         1.       KEC will be permitted to bid for or accept any job requiring
                  KEC to do Cabling Work if KEC has notified IPC in writing that
                  KEC intends to bid for such job and, within five (5) business
                  days of IPC's receipt of such notice, KEC either (a) fails to
                  receive notice from IPC of IPC's intention to bid for or
                  accept such job or (b) receives notice from IPC of IPC's
                  intention not to bid for or accept such job, provided that
                  nothing herein shall prohibit KEC from doing Cabling Work
                  pursuant to a subcontract from IPC.

         2.       As long as IPC believes that KEC is a qualified electrical
                  contractor, IPC, in its sole discretion, may continue to refer
                  to KEC opportunities which IPC may from time to time identify
                  for electrical contracting work related to Cabling Work bid on
                  by IPC.

         3.       The term of this Agreement (the "Term") shall be for a period
                  of three (3) years from the date hereof, except that the
                  Agreement may be terminated as follows: 

                  (a)      IPC may terminate this Agreement at any time, with or
                           without cause, upon ninety (90) days' prior written
                           notice to KEC.

                  (b)      Either party may terminate this Agreement upon five
                           (5) days' notice, upon the happening of any of the
                           following conditions:


                                       -2-

<PAGE>



                           (i)      In the event of a material default by the
                                    other party in the performance of its
                                    obligations hereunder, which default is not
                                    cured within five (5) days after the receipt
                                    of written notice thereof; or

                           (ii)     In the event the other party files a
                                    voluntary petition under the Bankruptcy
                                    Code, or for other debtor or insolvency
                                    relief.

                  (c)      If each of the Amended and Restated Labor Pool
                           Agreement, dated the date hereof, by and between IPC
                           and KEC-NY and the Amended and Restated Labor Pool
                           Agreement, dated the date hereof, by and between IPC
                           and KEC- NJ (collectively, the "LPAs") are
                           terminated, then this Agreement shall terminate and
                           be of no further force and effect unless IPC elects,
                           in its sole discretion, to make payments in an
                           aggregate of $500,000 per year (in equal monthly
                           payments) to KEC. Upon the termination of the LPAs,
                           IPC shall give prompt notice to KEC of its election
                           under this Section 3(c).

         4.       Any notice required under this Agreement shall be in writing
                  and shall be served by Certified Mail, return receipt
                  requested, directed to the parties, at the addresses indicated
                  first above. Notices otherwise validly given shall be
                  effective two (2) days after the mailing, notwithstanding the
                  date of actual receipt, or the failure or refusal of a party
                  to sign the return receipt. The address of either party may be
                  changed by such party giving notice to the other.

         5.       The rights and obligations of this Agreement are not
                  assignable. In the event of any merger or consolidation of
                  either party, or upon the appointment of a receiver for the


                                       -3-

<PAGE>



                  property of either of the parties hereto, this Agreement
                  shall, at the option of the other party, immediately
                  terminate.

         6.       The failure to insist upon strict compliance with any of the
                  terms, covenants or conditions hereof shall not be deemed a
                  waiver of such term, covenant or condition. A waiver of any
                  provision must be made in writing and signed by the party
                  against whom its enforcement is sought. A waiver at any one or
                  more times shall not be deemed a waiver at any other time or
                  times.

         7.       A determination that any provision of this Agreement is
                  invalid shall not affect the validity or enforceability of any
                  other provision.

         8.       This Agreement contains the entire understanding of the
                  parties relating to the subject matter hereof and supersedes
                  all prior agreements relating to the subject matter hereof. No
                  modification of this Agreement shall be valid unless made in
                  writing and signed by the parties.

         9.       This Agreement shall be governed by and construed pursuant to
                  the laws of the State of New York as an agreement made and
                  performed in the State of New York, without regard to any
                  principle of conflicts of law that would cause the
                  applications of the laws of any jurisdiction other than the
                  State of New York.

         10.      It is a condition precedent to the effectiveness of this
                  Agreement that the "Merger" under and as defined in the
                  Agreement and Plan of Merger, dated the date hereof, by and
                  between Arizona Acquisition Corp. and IPC, shall have been
                  consummated.


                                       -4-

<PAGE>



         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
signed by their duly authorized officers the day and year first above written.


                                        KLEINKNECHT ELECTRIC COMPANY, INC.,
                                        a New Jersey corporation


                                        By: /s/ Richard P. Kleinknecht
                                           ------------------------------
                                           Name: Richard P. Kleinknecht
                                           Title: President




                                        KLEINKNECHT ELECTRIC COMPANY, INC.,
                                        a New York corporation


                                        By: /s/ Peter J. Kleinknecht
                                           ------------------------------
                                           Name: Peter J. Kleinknecht
                                           Title: President



                                        IPC INFORMATION SYSTEMS INC.



                                        By: /s/ S.T. Clontz
                                           ------------------------------
                                           Name: S.T. Clontz
                                           Title: President & C.E.O.



                                       -5-




                                                                 EXECUTION COPY







                               INVESTORS AGREEMENT


                                   dated as of


                                December 18, 1997



                                      among


                          IPC INFORMATION SYSTEMS, INC.
                           CABLE SYSTEMS HOLDING, LLC
                       [CABLE SYSTEMS INTERNATIONAL INC.]*


                                       AND


                       CERTAIN OTHER PERSONS NAMED HEREIN









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

      *  To be added as a signatory hereto pursuant to Section 7.14 hereof.



<PAGE>



                                TABLE OF CONTENTS
                                   -----------

                                                                           PAGE
                                                                           ----

ARTICLE 1  DEFINITIONS
                  Section 1.01.  Definitions..................................1

ARTICLE 2  CORPORATE GOVERNANCE AND MANAGEMENT
                  Section 2.01.  Composition of the Board.....................6
                  Section 2.02.  Removal......................................7
                  Section 2.03.  Vacancies....................................7
                  Section 2.04.  Action by the Board..........................7
                  Section 2.05.  Conflicting Charter or Bylaw Provision.......8
                  Section 2.06.  IXNET Board..................................8

ARTICLE 3  RESTRICTIONS ON TRANSFER
                  Section 3.01.  General......................................8
                  Section 3.02.  Legends......................................8
                  Section 3.03.  Permitted Transferees........................9
                  Section 3.04.  Restrictions on Transfers by Kleinknecht
                                 Shareholders.................................9
                  Section 3.05.  Restrictions on Transfers by Walsh 
                                 Shareholders and Servidio Shareholders.......9

ARTICLE 4  TAG-ALONG RIGHTS; DRAG-ALONG RIGHTS
                  Section 4.01.  Rights to Participate in Transfer...........10
                  Section 4.02.  Right to Compel Participation in
                                 Certain Transfers...........................12

ARTICLE 5  REGISTRATION RIGHTS
                  Section 5.01.  Demand Registration.........................13
                  Section 5.02.  Piggyback Registration......................16
                  Section 5.03.  Holdback Agreements.........................17
                  Section 5.04.  Registration Procedures.....................17
                  Section 5.05.  Indemnification by the Company..............20
                  Section 5.06.  Indemnification by Participating
                                 Shareholders................................21
                  Section 5.07.  Conduct of Indemnification Proceedings......21
                  Section 5.08.  Contribution................................22
                  Section 5.09.  Participation in Public Offering............23
                  Section 5.10.  Rule 144....................................24
                  Section 5.11.  No Transfer of Registration Rights..........24

ARTICLE 6  CERTAIN COVENANTS AND AGREEMENTS
                  Section 6.01.  Limitations on Subsequent Registration......24
                  Section 6.02.  Limitation on Purchase of Common Stock......24


                                      - i -

<PAGE>




ARTICLE 7  MISCELLANEOUS
                  Section 7.01.  Entire Agreement............................25
                  Section 7.02.  Binding Effect; Benefit.....................25
                  Section 7.03.  Assignability...............................25
                  Section 7.04.  Amendment; Waiver; Termination..............25
                  Section 7.05.  Notices.....................................26
                  Section 7.06.  Headings....................................28
                  Section 7.07.  Counterparts................................28
                  Section 7.08.  Governing Law...............................28
                  Section 7.09.  Specific Enforcement........................29
                  Section 7.10.  Certain Actions.............................29
                  Section 7.11.  Consent to Jurisdiction; Expenses...........29
                  Section 7.12.  Severability................................30
                  Section 7.13.  Additional Stockholder......................30
                  Section 7.14.  Schedule I..................................30
                  Section 7.15   Effectiveness...............................30



Schedule I        Securities Ownership

Exhibit A         Form of Joinder Agreement



                                     - ii -

<PAGE>
                               INVESTORS AGREEMENT

                  INVESTORS AGREEMENT, dated as of December 18, 1997, among (i)
IPC Information Systems, Inc. (the "Company"), (ii) Cable Systems Holding, LLC,
a Delaware limited liability company ("CSH"), and (iii) Richard Kleinknecht,
(iv) David Walsh and (v) Anthony Servidio.


                               W I T N E S S E T H:

                  WHEREAS, pursuant to the terms of the Merger Agreement (as
defined below), Arizona Acquisition Corp. will be merged with and into the
Company, with the Company as the surviving corporation (the "Merger");

                  WHEREAS, at the Effective Time (as defined in the Merger
Agreement) the parties hereto will hold securities of the Company as set forth
on Schedule I to be attached hereto at the Effective Time;

                  WHEREAS, the parties hereto desire to enter into this
Agreement to govern certain of their rights, duties and obligations after
consummation of the transactions contemplated by the Merger Agreement;

                  The parties hereto agree as follows:


                                    ARTICLE 1

                                   DEFINITIONS

                  Section 1.01.  DEFINITIONS.  (a) The following terms, as used
herein, have the following meanings:

                  "Adverse Person" means any Person whom the Board of Directors
of the Company may reasonably determine to be a competitor or a potential
competitor of the Company or its Subsidiaries.

                  "Affiliate" means, with respect to any Person, any other
Person directly or indirectly controlling, controlled by, or under common
control with such Person, provided that no securityholder of the Company shall
be deemed an Affiliate of any other securityholder solely by reason of any
investment in the Company. For the purpose of this definition, the term
"control" (including with correlative meanings, the terms "controlling",
"controlled by" and "under common control with"), as used with respect to any
Person, shall mean the possession,



<PAGE>



directly or indirectly, of the power to direct or cause the direction of the
management and policies of such Person, whether through the ownership of voting
securities or by contract or otherwise.

                  "beneficially own" shall have the meaning set forth in Rule
13d-3 of the Exchange Act.

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

                  "Business Day" means any day except a Saturday, Sunday or
other day on which commercial banks in New York City are authorized by law to
close.

                  "Change of Control" means such time as (a) the CSH
Shareholders shall own less than 20% of the outstanding shares of Common Stock,
(b) the transfer of all or substantially all of the assets of the Company to any
Person or group shall have been consummated, or (c) the Company shall have been
liquidated.

                  "Closing Date" shall have the meaning ascribed thereto in the
Merger Agreement.

                  "Common Stock" shall mean the common stock, par value $.01 per
share, of the Company and any stock into which such Common Stock may thereafter
be converted or changed; PROVIDED, HOWEVER, that in the event of a stock
dividend, split-up, recapitalization, combination, exchange of stock or the like
in respect of such Common Stock, the term "Common Stock" shall be deemed to
refer to and include the stock as well as all stock dividends and distributions
and any stock into which or for which any or all of such stock may be changed or
exchanged.

                  "CSH Entities" means (a) CSH and (b) Cable Systems
International Inc., a Delaware Corporation, if it becomes a party hereto
pursuant to Section 7.13.

                  "CSH Shareholders" means the CSH Entities and their direct and
indirect Permitted Transferees so long as any such Person shall beneficially own
any Common Stock.

                  "Drag-Along Portion" means, with respect to any Kleinknecht
Shareholder, any Walsh Shareholder or any Servidio Shareholder, the number of
Shares beneficially owned by such Kleinknecht Shareholder, Walsh Shareholder or
Servidio Shareholder multiplied by a fraction, the numerator of which is the
number of Shares to be sold by the CSH Shareholders on behalf of the CSH
Shareholders and the Kleinknecht Shareholders, the Walsh Shareholders and the
Servidio Shareholders and the denominator of which is the total number of Shares
then beneficially owned by all of the Shareholders.

                  "Exchange Act" means the Securities Exchange Act of 1934, as
amended.

                  "Fully Diluted" means all outstanding shares of Common Stock
and all shares issuable in respect of securities convertible into or
exchangeable or exercisable for such

                                       -2-


<PAGE>



Common Stock, stock appreciation rights or options, warrants and other
irrevocable rights to purchase or subscribe for such Common Stock or securities
convertible into or exchangeable or exercisable for such Common Stock; provided
that no Person shall be deemed to own such number of Fully Diluted shares of any
Common Stock as such Person has the right to acquire from any Person other than
the Company.

                  "Initial Ownership" means, with respect to any Shareholder,
the number of shares of Common Stock beneficially owned (and (without
duplication) which such Persons have the right to acquire from any Person) as of
the Effective Time, or in the case of any Person that shall become a party to
this Agreement on a later date, as of such date, taking into account any stock
split, stock dividend, reverse stock split or similar event.

                  "Kleinknecht Shareholders" means the Richard Kleinknecht and
his direct and indirect Permitted Transferees so long as any such Person shall
beneficially own any Common Stock.

                  "Merger Agreement" means the Agreement and Plan of Merger
dated as of the date hereof, as subsequently amended, between the Company and
Arizona Acquisition Corp.

                  "Permitted Transferee" means (i) in the case of any
Shareholder who is a natural person, (a) a spouse or lineal descendent
(including by adoption and stepchildren), heir, executor, testamentary trustee
or legatee of such Shareholder or (b) any trust or estate the beneficiaries of
which, or any corporation, limited liability company or partnership, the
stockholders, members or partners of which include only the Persons described in
clause (a) above, and (ii) in the case of any CSH Shareholder, (a) Citicorp
Venture Capital, Ltd., any stockholder, member, partner or Affiliate of any such
CSH Shareholder or of Citicorp Venture Capital, Ltd. and any officer, director,
or employee of any such CSH Shareholder, Citicorp Venture Capital, Ltd. or of
any such stockholder, member, partner or Affiliate, (b) a spouse or lineal
descendant (including by adoption and stepchildren), heir, executor,
testamentary trustee or legatee of the officers, directors and employees
referred to in clause (ii)(a) above, and any trust or estate (where a majority
in interest of the beneficiaries thereof are any of the Persons described in
this clause (b) and in clause (ii)(a) above), corporation, limited liability
company or partnership (where a majority in interest of the stockholders,
members or limited partners, or where the managing general partner, is one of
more of the Persons described in this clause (b) or in clause (ii)(a) above.

                  "Person" means an individual, corporation, limited liability
company, partnership, association, trust or other entity or organization,
including a government or political subdivision or an agency or instrumentality
thereof.

                  "Pro Rata Portion" means the number of Shares a Shareholder
holds multiplied by a fraction, the numerator of which is the number of Shares
to be sold by the CSH Shareholders, the Kleinknecht Shareholders, the Walsh
Shareholders and the Servidio Shareholders in a Public

                                       -3-


<PAGE>



Offering and the denominator of which is the total number of Shares, on a Fully
Diluted basis, held in the aggregate by the CSH Shareholders, the Kleinknecht
Shareholders, the Walsh Shareholders and the Servidio Shareholders immediately
prior to such Public Offering.

                  "Public Offering" means any primary or secondary public
offering of shares of Common Stock pursuant to an effective registration
statement under the Securities Act other than pursuant to a registration
statement filed in connection with a transaction of the type described in Rule
145 of the Securities Act or for the purpose of issuing securities pursuant to
an employee benefit plan.

                  "Registrable Securities" means at any time, with respect to
any Shareholder, any shares of Common Stock then owned by such Shareholder until
(i) a registration statement covering such securities has been declared
effective by the SEC and such securities have been disposed of pursuant to such
effective registration statement, (ii) such securities are sold to the public
pursuant to Rule 144 (or any similar provisions then in force) under the
Securities Act or (iii) such securities are otherwise transferred, the Company
has delivered a new certificate or other evidence of ownership for such
securities not bearing the legend required pursuant to this Agreement and such
securities are freely tradeable without restriction by the holder thereof under
the Securities Act.

                  "Registration Expenses" means (i) all registration and filing
fees, (ii) fees and expenses of compliance with securities or blue sky laws
(including reasonable fees and disbursements of counsel in connection with blue
sky qualifications of the securities registered), (iii) printing expenses, (iv)
internal expenses of the Company (including, without limitation, all salaries
and expenses of its officers and employees performing legal or accounting
duties), (v) reasonable fees and disbursements of counsel for the Company and
customary fees and expenses for independent certified public accountants
retained by the Company (including expenses relating to any comfort letters or
costs associated with the delivery by independent certified public accountants
of a comfort letter or comfort letters requested pursuant to Section 5.04(g)
hereof), (vi) the reasonable fees and expenses of any special experts retained
by the Company in connection with such registration, (vii) reasonable fees and
expenses of up to one counsel for the Shareholders participating in the
offering, (viii) fees and expenses in connection with any review of underwriting
arrangements by the National Association of Securities Dealers, Inc. (the
"NASD"), including fees and expenses of any "qualified independent underwriter"
and (ix) fees and disbursements of underwriters customarily paid by issuers or
sellers of securities, but shall not include any underwriting fees, discounts or
commissions attributable to the sale of Registrable Securities, or any
out-of-pocket expenses (except as set forth in clause (vii) above) of the
Shareholders.

                  "SEC" means the Securities and Exchange Commission.

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

                                       -4-


<PAGE>




                  "Servidio Shareholders" means Anthony Servidio and his direct
and indirect Permitted Transferees so long as any such Person shall beneficially
own any Common Stock.

                  "Shareholder" means each Person (other than the Company) who
shall be a party to this Agreement, whether in connection with the execution and
delivery hereof as of the date hereof, pursuant to Section 7.03 or otherwise, so
long as such Person shall beneficially own any Common Stock.

                  "Shares" means shares of Common Stock held by the
 Shareholders.

                  "Subject Securities" means the Common Stock beneficially owned
by the Kleinknecht Shareholders, the Walsh Shareholders and the Servidio
Shareholders to be transferred in a Section 4.02 Sale.

                  "Subsidiary" means, with respect to any Person, any entity of
which securities or other ownership interests having ordinary voting power to
elect a majority of the board of directors or other persons performing similar
functions are at the time directly or indirectly owned by such Person.

                  "Tag-Along Portion" means the number of Shares held by the
Tagging Person or the Selling Person, as the case may be, multiplied by a
fraction, the numerator of which is the number of Shares proposed to be sold by
the Selling Person pursuant to Section 4.01, and the denominator of which is the
aggregate number of Shares, on a Fully Diluted basis, then owned by the Selling
Person.

                  "Third Party" means a prospective purchaser of Common Stock
from a Shareholder where such purchaser is not a Permitted Transferee of such
Shareholder or an entity in which such Shareholder or any of its Permitted
Transferees directly or indirectly owns any outstanding securities or other
ownership interests having ordinary voting power.

                  "Underwritten Public Offering" means a firmly underwritten
public offering of Registrable Securities of the Company pursuant to an
effective registration statement under the Securities Act.

                  "Walsh Shareholders" means Walsh and his direct and indirect
Permitted Transferees so long as any such Person shall beneficially own any
Common Stock.

                  (b) Each of the following terms is defined in the Section set
forth opposite such term:


                                       -5-


<PAGE>



Term                                                          Section

Cause                                                         2.02
Demand Registration                                           5.01(a)
Drag-Along Rights                                             4.02(a)
Free Percentage                                               4.01(a)
Holders                                                       5.01(a)(ii)
Indemnified Party                                             5.07
Indemnifying Party                                            5.07
Inspectors                                                    5.04(g)
Joinder Agreement                                             3.03
Maximum Offering Size                                         5.01(e)
Nominee                                                       2.03(a)
Piggyback Registration                                        5.02(a)
Records                                                       5.04(g)
Section 4.01 Response Notice                                  4.01(a)
Section 4.02 Sale                                             4.02(a)
Section 4.02 Notice                                           4.02(a)
Section 4.02 Sale Price                                       4.02(a)
Section 4.02 Notice Period                                    4.02(a)
Selling Person                                                4.01(a)
Selling Shareholder                                           5.01(a)
Tag-Along Notice                                              4.01(a)
Tag-Along Notice Period                                       4.01(a)
Tag-Along Offer                                               4.01(a)
Tag-Along Right                                               4.01(a)
Tag-Along Sale                                                4.01(a)
Tagging Person                                                4.01(a)
Transfer                                                      3.01(a)
Walsh                                                         Preamble


                                    ARTICLE 2

                       CORPORATE GOVERNANCE AND MANAGEMENT

                  Section 2.01. COMPOSITION OF THE BOARD. The Board shall
consist of nine members, of whom (i) three shall be nominated by the CSH
Shareholders, (ii) two shall be nominated by the CSH Shareholders and shall be
individuals which are not "Affiliates" or "Associates" (as those terms are used
within the meaning of Rule 12b-2 of the General Rules and Regulations under the
Exchange Act) of any Shareholder or its Affiliates, (iii) two shall be nominated
by the CSH Shareholders and shall be individuals who are executive officers of
the Company or its Subsidiaries and (iv) two shall be nominated by the
Kleinknecht Shareholders.

                                       -6-


<PAGE>



Each Shareholder entitled to vote for the election of directors to the Board
agrees that it will vote its shares of Common Stock or execute consents, as the
case may be, and take all other necessary action (including causing the Company
to call a special meeting of shareholders) in order to ensure that the
composition of the Board is as set forth in this Section 2.01; provided that, no
Shareholder shall be required to vote for the CSH Shareholders' or the
Kleinknecht Shareholders' nominee(s) , as applicable, if the number of Shares
held by the group of Shareholders, as applicable, making the nomination is, at
the close of business on the day preceding such vote or execution of consents,
less than (x) 5% of the outstanding number of Shares of Common Stock, in the
case of the CSH Shareholders or (y) less than 50% of its Initial Ownership of
Common Stock, in the case of the Kleinknecht Shareholders.

                  Section 2.02. REMOVAL. Subject to applicable law, each
Shareholder agrees that if, at any time, it is then entitled to vote for the
removal of directors of the Company, it will not vote any of its Shares in favor
of the removal of any director who shall have been designated or nominated
pursuant to Section 2.01 unless such removal shall be for Cause or the Person(s)
entitled to designate or nominate such director shall have consented to such
removal in writing, provided that if the Persons entitled to designate or
nominate any director pursuant to Section 2.01 shall request the removal, with
or without Cause, of such director in writing, each such Shareholder shall vote
its shares of Common Stock in favor of such removal. Removal for "Cause" shall
mean removal of a director because of such director's (a) willful and continued
failure substantially to perform his duties with the Company in his established
position, (b) willful conduct which is injurious to the Company or any of its
Subsidiaries, monetarily or otherwise, (c) conviction for, or guilty plea to, a
felony or a crime involving moral turpitude, or (d) abuse of illegal drugs or
other controlled substances or habitual intoxication.

                  Section 2.03. VACANCIES. If, as a result of death, disability,
retirement, resignation, removal (with or without Cause) or otherwise, there
shall exist or occur any vacancy on the Board:

                  (a) The Shareholder(s) entitled under Section 2.01 to nominate
such director whose death, disability, retirement, resignation or removal
resulted in such vacancy, may, subject to the provisions of Section 2.01,
nominate another individual (the "Nominee") to fill such vacancy and serve as a
director of the Company; and

                  (b) each Shareholder then entitled to vote for the election of
the Nominee as a director of the Company agrees that it will vote its Shares, or
execute a written consent, as the case may be, in order to ensure that the
Nominee be elected to the Board; provided that, no Shareholder shall be required
to vote for another party's Nominee(s) if the aggregate number of Shares held by
the Shareholder or group of Shareholders, as applicable, making the nomination
is, at the close of business of the day preceding such vote or execution of
consents, less than (x) 5% of the outstanding number of Shares of Common Stock,
in the case of the CSH Shareholders or (y) less than 50% of the Initial
Ownership of Common Stock, in the case of the Kleinknecht Shareholders.

                                       -7-


<PAGE>




                  Section 2.04. ACTION BY THE BOARD. (a) A quorum at any meeting
of the Board shall consist of five directors.

                  (b) All actions of the Board shall require the affirmative
vote of at least a majority of the directors present at a duly convened meeting
of the Board at which a quorum is present or the unanimous written consent of
the Board; provided that, in the event there is a vacancy on the Board and an
individual has been nominated to fill such vacancy, the first order of business
shall be to fill such vacancy.

                  Section 2.05. CONFLICTING CHARTER OR BYLAW PROVISION. Each
Shareholder shall vote its Shares, and shall take all other actions reasonably
necessary, to ensure that the Company's certificate of incorporation and bylaws
are consistent with, facilitate and do not at any time conflict with any
provision of this Agreement.

                  Section 2.06. IXNET BOARD. For so long as (a) International
Exchange Network Ltd, a Delaware corporation ("IXNET") is a wholly-owned
Subsidiary of the Company and (b) David Walsh is an employee of IXNET, the
Company shall cause David Walsh to be a member of the board of directors of
IXNET.


                                    ARTICLE 3

                            RESTRICTIONS ON TRANSFER

                  Section 3.01. GENERAL. (a) Each Shareholder agrees that it
will not, directly or indirectly, sell, assign, transfer, grant a participation
in, pledge or otherwise dispose of ("transfer") any Common Stock (or solicit any
offers to buy or otherwise acquire, or take a pledge of any Common Stock) except
in compliance with the Securities Act and the terms and conditions of this
Agreement.

                  (b) Any attempt to transfer any Common Stock not in compliance
with this Agreement shall be null and void and the Company shall not, and shall
cause any transfer agent not to, give any effect in the Company's stock records
to such attempted transfer.

                  Section 3.02. LEGENDS. (a) In addition to any other legend
that may be required, each certificate for shares of Common Stock that is issued
to any Shareholder shall bear a legend in substantially the following form:

         "THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
         UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE SOLD,
         PLEDGED OR OTHERWISE TRANSFERRED EXCEPT PURSUANT TO AN EFFECTIVE
         REGISTRATION STATEMENT OR IN

                                       -8-


<PAGE>



         ACCORDANCE WITH AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE
         SECURITIES ACT OF 1933, AS AMENDED. SHARES REPRESENTED BY THIS
         CERTIFICATE ARE SUBJECT TO RESTRICTIONS ON TRANSFER AS SET FORTH IN THE
         INVESTORS AGREEMENT DATED AS OF DECEMBER 18, 1997, COPIES OF WHICH MAY
         BE OBTAINED UPON REQUEST FROM IPC INFORMATION SYSTEMS, INC. OR ANY
         SUCCESSOR THERETO."

                  (b) If any Common Stock shall cease to be subject to any and
all restrictions on transfer set forth in this Agreement, the Company shall,
upon the written request of the holder thereof, issue to such holder a new
certificate evidencing such Common Stock without the legend required by Section
3.02(a) endorsed thereon.

                  Section 3.03. PERMITTED TRANSFEREES. Any Shareholder may at
any time transfer any or all of its Shares to one or more of its Permitted
Transferees without the consent of the Company or any Shareholder or group of
Shareholders and without compliance with Sections 3.04 and 4.01 so long as (a)
such Permitted Transferee shall have executed a Joinder Agreement substantially
in the form of Exhibit A hereto ("Joinder Agreement") and thereby agreed to be
bound by the terms of this Agreement and (b) the transfer to such Permitted
Transferee is not in violation of applicable federal or state securities laws.

                  Section 3.04. RESTRICTIONS ON TRANSFERS BY KLEINKNECHT
SHAREHOLDERS. (a) Except as provided in Section 3.03, the Kleinknecht
Shareholders may transfer their Common Stock only as follows:

                           (i)      in a transfer made in compliance with 
                  Section 4.01 or Section 4.02;

                           (ii) in a Public Offering in connection with the
                  exercise of their rights under Article 5 hereof; or

                           (iii) following the earlier to occur of (i) the date
                  on which the number of Shares held by the Kleinknecht
                  Shareholders is less than 5% of the outstanding number of
                  Shares of Common Stock and (ii) the fifth anniversary of the
                  Closing Date, to any Person other than any Adverse Person.

                  (b) The restrictions set forth in Section 3.04 shall terminate
at such time as the aggregate number of Shares of Common stock held by the CSH
Shareholders is less than 50% of the CSH Shareholders' aggregate Initial
Ownership of Common Stock.

                  Section 3.05. RESTRICTIONS ON TRANSFERS BY WALSH SHAREHOLDERS
AND SERVIDIO SHAREHOLDERS. Except as provided in Section 3.03, the Walsh
Shareholders and the Servidio Shareholders may transfer their Common Stock only
as follows:


                                       -9-


<PAGE>



                           (i) in a transfer made in compliance with Section
                  4.01 of Section 4.02; or

                           (ii)     in any Public Offering; or

                           (iii) following the 30th month anniversary of the
                  Closing Date, to any Person other than any Adverse Person; or

                           (iv) to any Person, in a transfer through a broker or
                  dealer in compliance with Rule 144 (or any successor rule).


                                    ARTICLE 4

                       TAG-ALONG RIGHTS; DRAG-ALONG RIGHTS

                  Section 4.01. RIGHTS TO PARTICIPATE IN TRANSFER. (a) If CSH
Shareholders (the "Selling Person") propose to, directly or indirectly, transfer
(other than transfers of Shares (i) in a Public Offering, (ii) to any Permitted
Transferee of any of the CSH Shareholders or (iii) up to 3% in the aggregate of
the securities of such class outstanding on the date of the first transfer of
any Shares by any of the CSH Shareholders (such percentage, the "Free
Percentage")) shares of Common Stock (a "Tag-Along Sale"), the Kleinknecht
Shareholders and/or the Walsh Shareholders and/or the Servidio Shareholders may,
at their option, elect to exercise their rights under this Section 4.01 (each
such Shareholder, a "Tagging Person"). In the event of such a proposed transfer,
the Selling Person shall provide each Kleinknecht Shareholder, each Walsh
Shareholder and each Servidio Shareholder written notice of the material terms
and conditions of such proposed transfer ("Tag-Along Notice") and offer each
Tagging Person the opportunity to participate in such sale. The Tag-Along Notice
shall identify the number of shares of Common Stock subject to the offer
("Tag-Along Offer"), the consideration for which the transfer is proposed to be
made and all other material terms and conditions of the Tag-Along Offer. Each
Tagging Person shall have the right (a "Tag-Along Right"), exercisable by
irrevocable written notice (a "Section 4.01 Response Notice") given within 10
Business Days from receipt of the Tag-Along Notice (the "Tag-Along Notice
Period") to participate in such Tag-Along Sale on the same terms and conditions
as set forth in the Tag-Along Notice and to sell all or any portion of its
Tag-Along Portion. If the Tagging Persons exercise their Tag-Along Rights
hereunder, each Tagging Person shall deliver at least two business days prior to
the date scheduled for the closing of the Tag-Along Sale to the Selling Person
for delivery to the prospective transferee one or more certificates, in a proper
form for transfer, representing the Shares of such Tagging Person to be included
in the Tag-Along Sale. Such certificate or certificates that a Tagging Person
delivers to the Selling Person shall be delivered on the date scheduled for the
closing of the Tag-Along Sale to such transferee in consummation of the
Tag-Along Sale. Notwithstanding anything to the contrary contained in this
Section 4.01, except for the Selling Person's obligation to return to each
Tagging Person any certificates representing the Tagging Person's Shares there
shall be no

                                      -10-


<PAGE>



liability on the part of the Selling Person to any Shareholder in the event that
the proposed Tag-Along Sale is not consummated for whatever reason. Whether a
Tag-Along Sale is effected pursuant to this Section 4.01 by the Selling Person
is in the sole and absolute discretion of the Selling Person.

                  (b) Concurrently with the consummation of the Tag-Along Sale,
the Selling Person shall notify the Tagging Persons thereof, shall remit to the
Tagging Persons the total consideration (by bank or certified check) for the
Shares of the Tagging Persons transferred pursuant thereto, and shall, promptly
after the consummation of such Tag-Along Sale, furnish such other evidence of
the completion and time of completion of such transfer and the terms thereof as
may be reasonably requested by the Tagging Persons.

                  (c) If at the termination of the Tag-Along Notice Period any
Tagging Person shall not have elected to participate in the Tag-Along Sale, such
Tagging Person will be deemed to have waived its rights under Section 4.01(a)
with respect to the transfer of its securities pursuant to such Tag-Along Sale.

                  (d) If any Tagging Person declines to exercise its Tag-Along
Rights or elects to exercise its Tag-Along Rights with respect to less than such
Tagging Person's Tag-Along Portion, the CSH Shareholders shall be entitled to
transfer, pursuant to the Tag-Along Offer, a number of Shares held by the CSH
Shareholders equal to the number of Shares constituting the portion of such
Tagging Person's Tag-Along Portion with respect to which Tag-Along Rights were
not exercised.

                  (e) The CSH Shareholders and any Tagging Person who exercises
the Tag-Along Rights pursuant to this Section 4.01 may consummate the Tag-Along
Sale on substantially the same terms and conditions set forth in the Tag-Along
Notice (provided, however, that the price payable in any such sale may exceed
the price specified in the Tag-Along Notice by up to 5%) within 120 days of the
date on which Tag-Along Rights shall have been waived, exercised or expire.

                  (f) The exercise or the non-exercise of the rights of the
Tagging Persons to participate in one or more Tag-Along Sales shall not
adversely affect their rights to participate in subsequent Tag-Along Sales
subject to this Section 4.01.

                  (g) The sale of the Selling Person's Shares in any Tag-Along
Sale shall be effected on the same terms and conditions as the sale of any
Tagging Person's Shares and no Selling Person shall receive any form of special
consideration or control premium in addition to the price payable for the sold
Shares.

                  (h) The right of the Kleinknecht Shareholders, the Walsh
Shareholders and the Servidio Shareholders to participate in a Tag-Along Sale
shall terminate at such time as the aggregate number of Shares held by the
Kleinknecht Shareholders, the Walsh Shareholders or the

                                      -11-


<PAGE>



Servidio Shareholders, as the case may be, is less than 50% of their aggregate
Initial Ownership of Common Stock.

                  Section 4.02. RIGHT TO COMPEL PARTICIPATION IN CERTAIN
TRANSFERS. (a) If (i) the CSH Shareholders propose to transfer Shares
representing not less than 50% of their aggregate Initial Ownership of Common
Stock to a Third Party in a bona fide sale for cash negotiated on an arms-length
basis, and (ii) the CSH Shareholders propose a transfer in which the Shares to
be transferred by the CSH Shareholders, the Kleinknecht Shareholders, the Walsh
Shareholders and the Servidio Shareholders would constitute more than 50% of the
outstanding shares of Common Stock determined on a fully diluted basis (a
"Section 4.02 Sale"), the CSH Shareholders may at their option require all
Kleinknecht Shareholders, Walsh Shareholders and Servidio Shareholders to sell
the Subject Securities ("Drag-Along Rights") then held by every Kleinknecht
Shareholder, Walsh Shareholder, and Servidio Shareholders to such Third Party,
for the same consideration per share of Common Stock and otherwise on the same
terms and conditions as the CSH Shareholders. CSH shall provide written notice
of such Section 4.02 Sale to the Kleinknecht Shareholders, the Walsh
Shareholders and the Servidio Shareholders (a "Section 4.02 Notice") not later
than the 30th day prior to the proposed Section 4.02 Sale. The Section 4.02
Notice shall identify the transferee, the number of Subject Securities, the
consideration for which a transfer is proposed to be made (the "Section 4.02
Sale Price") and all other material terms and conditions of the Section 4.02
Sale. The number of shares of Common Stock to be sold by each Kleinknecht
Shareholder, Walsh Shareholder and Servidio Shareholders shall not exceed the
Drag-Along Portion of the shares of Common Stock that such Kleinknecht
Shareholder, Walsh Shareholder and Servidio Shareholders owns. Each Kleinknecht
Shareholder, Walsh Shareholder or Servidio Shareholder shall be required to
participate in the Section 4.02 Sale on the terms and conditions set forth in
the Section 4.02 Notice and to tender all its Subject Securities as set forth
below. The price payable in such transfer shall be the Section 4.02 Sale Price.
Each of the Kleinknecht Shareholders, Walsh Shareholders or Servidio
Shareholders shall deliver not later than 2 Business Days prior to the date
scheduled for the Section 4.02 Sale to a representative of CSH designated in the
Section 4.02 Notice certificates representing all Subject Securities held by
such Kleinknecht Shareholder, Walsh Shareholder and Servidio Shareholders duly
endorsed, together with all other documents required to be executed in
connection with such Section 4.02 Sale or, if such delivery is not permitted by
applicable law, an unconditional agreement to deliver such Subject Securities
pursuant to this Section 4.02 at the closing for such Section 4.02 Sale against
delivery to such Kleinknecht Shareholder, Walsh Shareholder and Servidio
Shareholders of the consideration therefor. If a Kleinknecht Shareholder, Walsh
Shareholder or Servidio Shareholder should fail to deliver such certificates to
CSH, the Company shall cause the books and records of the Company to show that
such Subject Securities are bound by the provisions of this Section 4.02 and
that such Subject Securities shall be transferred to the purchaser of the
Subject Securities immediately upon surrender for transfer by the holder
thereof.

                  (b) The CSH Shareholders shall have a period of 120 days from
the date of receipt of the Section 4.02 Notice to consummate the Section 4.02
Sale on the terms and conditions set forth in such Section 4.02 Sale Notice. If
the Section 4.02 Sale shall not have been

                                      -12-


<PAGE>



consummated during such period, CSH shall return to each of the Kleinknecht
Shareholders, each of the Walsh Shareholders and each of the Servidio
Shareholders all certificates representing Shares that such Kleinknecht
Shareholder, Walsh Shareholder or Servidio Shareholder, as the case may be, may
have delivered for transfer pursuant hereto, together with any documents in the
possession of CSH executed by the Kleinknecht Shareholder, the Walsh Shareholder
or the Servidio Shareholder, as the case may be, in connection with such
proposed transfer, and all the restrictions on transfer contained in this
Agreement or otherwise applicable at such time with respect to Common Stock
owned by the Kleinknecht Shareholders, the Walsh Shareholders and the Servidio
Shareholders shall again be in effect.

                  (c) Concurrently with the consummation of the transfer of
Shares pursuant to this Section 4.02, CSH or the Company, as applicable, shall
remit to each of the Shareholders who have surrendered their certificates the
total consideration (by bank or certified check) for the Shares transferred
pursuant hereto and shall furnish such other evidence of the completion and time
of completion of such transfer and the terms thereof as may be reasonably
requested by such Shareholders.

                  (d) In furtherance of, and not in limitation of the foregoing
provisions of this Section 4.02, in connection with a Section 4.02 Sale (which
Section 4.02 Sale may be structured as a merger, recapitalization,
reorganization, sale of assets or otherwise) each Kleinknecht Shareholder, Walsh
Shareholder or Servidio Shareholder will (i) consent to and raise no objection
against the Section 4.02 Sale or the process pursuant to which it was arranged,
(ii) waive any appraisal rights and other similar rights and (iii) execute all
documents containing such terms and conditions as those executed by other
Shareholders as directed by the CSH Shareholders.

                  (e) The sale of the CSH Shareholders' Shares in any Section
4.02 Sale shall be effected on the same terms and conditions as the sale of any
Shares owned by the Kleinknecht Shareholders, the Walsh Shareholders and the
Servidio Shareholders and no CSH Shareholder shall receive any form of special
consideration or control premium in addition to the price payable for the sold
Shares.


                                    ARTICLE 5

                               REGISTRATION RIGHTS

                  Section 5.01. DEMAND REGISTRATION. (a) If the Company shall
receive a written request by the CSH Shareholders (any such requesting Person, a
"Selling Shareholder") that the Company effect the registration under the
Securities Act of all or a portion of such Selling Shareholder's Registrable
Securities, and specifying the intended method of disposition thereof, then the
Company shall promptly give written notice of such requested registration (a
"Demand Registration") to the Kleinknecht Shareholders, the Walsh Shareholders
and the Servidio

                                      -13-


<PAGE>



Shareholders, and thereupon will use its best efforts to effect, as
expeditiously as possible, the registration under the Securities Act of:

                           (i) the Registrable Securities which the Company has
                  been so requested to register by the Selling Shareholders,
                  then held by the Selling Shareholders; and

                           (ii) all other Registrable Securities of the same
                  type as that to which the request by the Selling Shareholders
                  relates which any Kleinknecht Shareholder, any Walsh
                  Shareholder or any Servidio Shareholder (all such
                  Shareholders, together with the Selling Shareholders, the
                  "Holders") has requested the Company to register by written
                  request received by the Company within 10 days (one of which
                  shall be a Business Day) after the receipt by such Holders of
                  such written notice given by the Company, all to the extent
                  necessary to permit the disposition (in accordance with the
                  intended methods thereof as aforesaid) of the Registrable
                  Securities so to be registered; provided that, subject to
                  Section 5.01(d) hereof, the Company shall not be obligated to
                  effect more than five Demand Registrations for the CSH
                  Shareholders; and provided further that the Company shall not
                  be obligated to effect a Demand Registration unless the
                  aggregate proceeds expected to be received from the sale of
                  the Common Stock requested to be included in such Demand
                  Registration, in the reasonable opinion of CSH exercised in
                  good faith, equals or exceeds $7,500,000. In no event will the
                  Company be required to effect more than one Demand
                  Registration within any four-month period.

                  (b) Promptly after the expiration of the 10-day period
referred to in Section 5.01(a)(ii) hereof, the Company will notify all the
Holders to be included in the Demand Registration of the other Holders and the
number of Registrable Securities requested to be included therein. The Selling
Shareholders requesting a registration under Section 5.01(a) may, at any time
prior to the effective date of the registration statement relating to such
registration, revoke such request, without liability to any of the other
Holders, by providing a written notice to the Company revoking such request, in
which case such request, so revoked, shall be considered a Demand Registration
unless such revocation arose out of the fault of the Company or unless the
participating Shareholders reimburse the Company for all costs incurred by the
Company in connection with such registration, in which case such request shall
not be considered a Demand Registration.

                  (c) The Company will pay all Registration Expenses in
connection with any Demand Registration.

                  (d) A registration requested pursuant to this Section 5.01
shall not be deemed to have been effected unless the registration statement
relating thereto (i) has become effective under the Securities Act and (ii) all
of the Registrable Securities registered thereunder have been

                                      -14-


<PAGE>



sold; provided that if, within 180 days after it has become effective, the
offering of Registrable Securities pursuant to such registration is interfered
with by any stop order, injunction or other order or requirement of the SEC or
other governmental agency or court such registration will be deemed not to have
been effected.

                  (e) If a Demand Registration involves an Underwritten Public
Offering and the managing underwriter shall advise the Company and the Selling
Shareholders that, in its view, (i) the number of shares of Registrable
Securities requested to be included in such registration (including any
securities which the Company proposes to be included which are not Registrable
Securities) or (ii) the inclusion of some or all of the shares of Registrable
Securities owned by the Holders, in any such case, exceeds the largest number of
shares which can be sold without having an adverse effect on such offering,
including the price at which such shares can be sold (the "Maximum Offering
Size"), the Company will include in such registration, in the priority listed
below, up to the Maximum Offering Size:

                           (A) first, all Registrable Securities requested to be
                  registered by the parties requesting such Demand Registration
                  and all Registrable Securities requested to be included in
                  such registration by any other Holder (allocated, if necessary
                  for the offering not to exceed the Maximum Offering Size, pro
                  rata among such Holders on the basis of the relative number of
                  Registrable Securities so requested to be included in such
                  registration); and

                           (B) second, any securities proposed to be registered
by the Company.

                  (f) Upon written notice to each Selling Shareholder, the
Company may postpone effecting a registration pursuant to this Section 5.01 on
one occasion during any period of six consecutive months for a reasonable time
specified in the notice but not exceeding 90 days (which period may not be
extended or renewed), if (1) an investment banking firm of recognized national
standing shall advise the Company and the Selling Shareholders in writing that
effecting the registration would materially and adversely affect an offering of
securities of such Company the preparation of which had then been commenced or
(2) the Company is in possession of material non-public information the
disclosure of which during the period specified in such notice the Company
believes, in its reasonable judgment, would not be in the best interests of the
Company.

                  (g) After the Company has effected one Demand Registration by
the CSH Shareholders pursuant to this Section 5.01 of Common Stock, the
Kleinknecht Shareholders, upon request of the Kleinknecht Shareholders owning a
majority of the Shares acquired by the Kleinknecht Shareholders on the Closing
Date may request that the Company register Common Stock which are Registrable
Securities then owned by such Kleinknecht Shareholders. In no event will the
Company be required to effect more than two such Demand Registrations by the
Kleinknecht Shareholders. The other provisions of this Article 5 applicable to
Demand

                                      -15-


<PAGE>



Registrations requested by the CSH Shareholders shall apply, mutatis mutandis,
to any such Demand Registration by the Kleinknecht Shareholders.

                  (h) If any registration requested pursuant to this Section
5.01 which is proposed by the Company to be effected by the filing of a
registration statement on form S-3 (or any successor or similar short-form
registration statement) shall be in connection with an Underwritten Public
Offering, and if the managing underwriter shall advise the Company in writing
that, in its opinion, the use of another form of registration statement is of
material importance to the success of such proposed offering, then such
registration shall be effected on such other form.

                  Section 5.02. PIGGYBACK REGISTRATION. (a) If the Company
proposes to register any of its Common Stock under the Securities Act (other
than pursuant to a Demand Registration), it will each such time, subject to the
provisions of Section 5.02(b) hereof, give prompt written notice at least 15
days prior to the anticipated filing date of the registration statement relating
to such registration to all Shareholders which notice shall set forth such
Shareholders' rights under this Section 5.02 and shall offer all Shareholders
the opportunity to include in such registration statement such number of shares
of Common Stock as each such Shareholder may request (a "Piggyback
Registration"). Upon the written request of any such Shareholder made within 10
days after the receipt of notice from the Company (which request shall specify
the number of shares of Common Stock intended to be disposed of by such
Shareholder), the Company will use its reasonable best efforts to effect the
registration under the Securities Act of all shares of Common Stock which the
Company has been so requested to register by such Shareholders, to the extent
requisite to permit the disposition of the shares of Common Stock so to be
registered; provided that (i) if such registration involves an Underwritten
Public Offering, all such Shareholders requesting to be included in the
Company's registration must sell their Registrable Securities to the
underwriters selected as provided in Section 5.04(f) on the same terms and
conditions as apply to the Company or the Selling Shareholder, as applicable,
and (ii) if, at any time after giving written notice of its intention to
register any stock pursuant to this Section 5.02(a) and prior to the effective
date of the registration statement filed in connection with such registration,
the Company shall determine for any reason not to register such stock, the
Company shall give written notice to all such Shareholders and, thereupon, shall
be relieved of its obligation to register any Registrable Securities in
connection with such registration. No registration effected under this Section
5.02 shall relieve the Company of its obligations to effect a Demand
Registration to the extent required by Section 5.01 hereof. The Company will pay
all Registration Expenses in connection with each registration of Registrable
Securities requested pursuant to this Section 5.02.

                  (b) If a registration pursuant to this Section 5.02 involves
an Underwritten Public Offering and the managing underwriter advises the Company
that, in its view, the number of shares of Common Stock which the Company and
the selling Shareholders intend to include in such registration exceeds the
Maximum Offering Size, the Company will include in such registration, in the
following priority, up to the Maximum Offering Size:

                                                      -16-


<PAGE>



                           (i) first, so much of the Common Stock proposed to be
                  registered for the account of the Company as would not cause
                  the offering to exceed the Maximum Offering Size; and

                           (ii) second, all Registrable Securities requested to
                  be included in such registration by any Shareholder pursuant
                  to Section 5.02 (allocated, if necessary for the offering not
                  to exceed the Maximum Offering Size, pro rata among such
                  Shareholders on the basis of the relative number of shares of
                  Registrable Securities so requested to be included in such
                  registration).

                  Section 5.03. HOLDBACK AGREEMENTS. With respect to each and
every firmly underwritten Public Offering, each Shareholder agrees not to offer
or sell any shares of Common Stock (except for shares of Common Stock, if any,
sold in that Public Offering) during the 14 days prior to the effective date of
the applicable registration statement for a public offering of shares of Common
Stock (except as part of such registration) and during the period after such
effective date equal to the lesser of: (i) 180 days or (ii) any such shorter
period as the Company and the lead managing underwriter of an Underwritten
Public Offering agree.

                  Section 5.04. REGISTRATION PROCEDURES. Whenever Shareholders
request that any Registrable Securities be registered pursuant to Section 5.01
or 5.02 hereof, the Company will, subject to the provisions of such Sections,
use its reasonable best efforts to effect the registration and the sale of such
Registrable Securities in accordance with the intended method of disposition
thereof as quickly as practicable, and in connection with any such request:

                  (a) The Company will as expeditiously as possible prepare and
file with the SEC a registration statement on any form selected by counsel for
the Company and which form shall be available for the sale of the Registrable
Securities to be registered thereunder in accordance with the intended method of
distribution thereof, and use its reasonable best efforts to cause such filed
registration statement to become and remain effective for a period of not less
than 180 days (or such shorter period in which all of the Registrable Securities
of the Holders included in such registration statement shall have actually been
sold thereunder).

                  (b) The Company will, if requested, prior to filing a
registration statement or prospectus or any amendment or supplement thereto,
furnish to each Shareholder and each underwriter, if any, of the Registrable
Securities covered by such registration statement copies of such registration
statement as proposed to be filed, and thereafter the Company will furnish to
such Shareholder and underwriter, if any, such number of copies of such
registration statement, each amendment and supplement thereto (in each case
including all exhibits thereto and documents incorporated by reference therein),
the prospectus included in such registration statement (including each
preliminary prospectus) and such other documents as such Shareholder or
underwriter may reasonably request in order to facilitate the disposition of the
Registrable Securities owned by such Shareholder. Each Shareholder shall have
the right to request that the Company modify any information contained in such
registration statement, amendment and

                                      -17-


<PAGE>



supplement thereto pertaining to such Shareholder and the Company shall use its
reasonable best efforts to comply with such request, provided, however, that the
Company shall not have any obligation to so modify any information if so doing
would cause the prospectus to contain an 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.

                  (c) After the filing of the registration statement, the
Company will (i) cause the related prospectus to be supplemented by any required
prospectus supplement, and as so supplemented to be filed pursuant to Rule 424
under the Securities Act, (ii) comply with the provisions of the Securities Act
with respect to the disposition of all Registrable Securities covered by such
registration statement during the applicable period in accordance with the
intended methods of disposition by the sellers thereof set forth in such
registration statement or supplement to such prospectus and (iii) promptly
notify each Shareholder holding Registrable Securities covered by such
registration statement of any stop order issued or threatened by the SEC or any
state securities commission under state blue sky laws and take all reasonable
actions required to prevent the entry of such stop order or to remove it if
entered.

                  (d) The Company will use its reasonable best efforts to (i)
register or qualify the Registrable Securities covered by such registration
statement under such other securities or blue sky laws of such jurisdictions in
the United States as any Shareholder holding such Registrable Securities
reasonably (in light of such Shareholder's intended plan of distribution)
requests and (ii) cause such Registrable Securities to be registered with or
approved by such other governmental agencies or authorities as may be necessary
by virtue of the business and operations of the Company and do any and all other
acts and things that may be reasonably necessary or advisable to enable such
Shareholder to consummate the disposition of the Registrable Securities owned by
such Shareholder; provided that the Company will not be required to (A) qualify
generally to do business in any jurisdiction where it would not otherwise be
required to qualify but for this paragraph (d), (B) subject itself to taxation
in any such jurisdiction or (C) consent to general service of process in any
such jurisdiction.

                  (e) The Company will immediately notify each Shareholder
holding such Registrable Securities covered by such registration statement, at
any time when a prospectus relating thereto is required to be delivered under
the Securities Act, of the occurrence of an event requiring the preparation of a
supplement or amendment to such prospectus so that, as thereafter delivered to
the purchasers of such Registrable Securities, such prospectus will not contain
an 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 promptly prepare and make available to each such Shareholder and
file with the SEC any such supplement or amendment.

                  (f) In connection with any Demand Registration requested by
the CSH Shareholders, the Company shall appoint the underwriter or underwriters
chosen by CSH. The Company will enter into customary agreements (including an
underwriting agreement in customary form) and take such other actions as are
reasonably required in order to expedite or

                                      -18-


<PAGE>



facilitate the disposition of such Registrable Securities, including the
engagement of a "qualified independent underwriter" in connection with the
qualification of the underwriting arrangements with the NASD.

                  (g) Upon execution of confidentiality agreements in form and
substance reasonably satisfactory to the Company, the Company will make
available for inspection by any Shareholder and any underwriter participating in
any disposition pursuant to a registration statement being filed by the Company
pursuant to this Section 5.04 and any attorney, accountant or other professional
retained by any such Shareholder or underwriter (collectively, the
"Inspectors"), all financial and other records, pertinent corporate documents
and properties of the Company (collectively, the "Records") as shall be
reasonably requested by any such Person, and cause the Company's officers,
directors and employees to supply all information reasonably requested by any
Inspectors in connection with such registration statement.

                  (h) The Company will furnish to each such Shareholder (if
requested by such Shareholder) and to each such underwriter, if any, a signed
counterpart, addressed to such underwriter and the participating Shareholders,
of (i) an opinion or opinions of counsel to the Company and (ii) a comfort
letter or comfort letters from the Company's independent public accountants,
each in customary form and covering such matters of the type customarily covered
by opinions or comfort letters, as the case may be, as a majority of such
Shareholders or the managing underwriter therefor reasonably requests.

                  (i) The Company will otherwise use its reasonable best efforts
to comply with all applicable rules and regulations of the SEC and the relevant
state blue sky commissions, and make available to its securityholders, as soon
as reasonably practicable, an earnings statement covering a period of 12 months,
beginning within three months after the effective date of the registration
statement, which earnings statement shall satisfy the provisions of Section
11(a) of the Securities Act.

                  (j) The Company may require each such Shareholder to promptly
furnish in writing to the Company information regarding the distribution of the
Registrable Securities as the Company may from time to time reasonably request
and such other information as may be legally required in connection with such
registration.

                  (k) Each such Shareholder agrees that, upon receipt of any
notice from the Company of the happening of any event of the kind described in
Section 5.04(e) hereof, such Shareholder will forthwith discontinue disposition
of Registrable Securities pursuant to the registration statement covering such
Registrable Securities until such Shareholder's receipt of the copies of the
supplemented or amended prospectus contemplated by Section 5.04(e) hereof, and,
if so directed by the Company, such Shareholder will deliver to the Company all
copies, other than any permanent file copies then in such Shareholder's
possession, of the most recent prospectus covering such Registrable Securities
at the time of receipt of such notice. In the event that the Company shall give
such notice, the Company shall extend the period during which such

                                      -19-


<PAGE>



registration statement shall be maintained effective (including the period
referred to in Section 5.04(a) hereof) by the number of days during the period
from and including the date of the giving of notice pursuant to Section 5.04(e)
hereof to the date when the Company shall make available to such Shareholder a
prospectus supplemented or amended to conform with the requirements of Section
5.04(e) hereof.

                  (l) The Company will use its reasonable best efforts to list
such Registrable Securities on any securities exchange on which the Common Stock
is then listed or on NASDAQ if the Common Stock is then quoted on NASDAQ not
later than the effective date of such registration statement.

                  Section 5.05. INDEMNIFICATION BY THE COMPANY. The Company
agrees to indemnify and hold harmless each Shareholder holding Registrable
Securities covered by a registration statement, its officers, directors,
employees, members, partners and agents, any affiliate of such Shareholder and
each Person, if any, who controls such Shareholder within the meaning of the
Securities Act or Section 20 of the Exchange Act (and officers, directors,
employees, members, partners and agents of any such affiliate or controlling
Persons) from and against any and all losses, claims, damages and liabilities,
joint or several, and expenses (including reasonable attorneys fees and costs
and expenses of investigation) caused by any untrue statement or alleged untrue
statement of a material fact contained in any registration statement or
prospectus relating to the Registrable Securities (as amended or supplemented if
the Company shall have furnished any amendments or supplements thereto) or any
preliminary prospectus, or caused by any omission or alleged omission to state
therein a material fact required to be stated therein or necessary to make the
statements therein not misleading, except insofar as such losses, claims,
damages or liabilities are caused by any such untrue statement or omission or
alleged untrue statement or omission so made in strict conformity with
information furnished in writing to the Company by such Shareholder or on such
Shareholder's behalf expressly for use therein; provided that with respect to
any untrue statement or omission or alleged untrue statement or omission made in
any preliminary prospectus, or in any prospectus, as the case may be, the
indemnity agreement contained in this paragraph shall not apply to the extent
that any such loss, claim, damage, liability or expense results from the fact
that a current copy of the prospectus (or, in the case of a prospectus, the
prospectus as amended or supplemented) was not sent or given to the Person
asserting any such loss, claim, damage, liability or expense at or prior to the
written confirmation of the sale of the Registrable Securities concerned to such
Person if it is determined that the Company has provided such current copy of
such prospectus (or such amended or supplemented prospectus, as the case may be)
to such Shareholder in a timely manner prior to such sale and it was the
responsibility of such Shareholder under the Securities Act to provide such
Person with a current copy of the prospectus (or such amended or supplemented
prospectus, as the case may be) and such current copy of the prospectus (or such
amended or supplemented prospectus, as the case may be) would have cured the
defect giving rise to such loss, claim, damage, liability or expense. The
Company also agrees to indemnify any underwriters of the Registrable Securities,
their officers and

                                      -20-


<PAGE>



directors and each person who controls such underwriters on substantially the
same basis as that of the indemnification of the Shareholders provided in this
Section 5.05.

                  Section 5.06. INDEMNIFICATION BY PARTICIPATING SHAREHOLDERS.
Each Shareholder holding Registrable Securities included in any registration
statement agrees, severally but not jointly, to indemnify and hold harmless the
Company, its officers, directors and agents and each Person (other than such
Shareholder) if any, who controls the Company within the meaning of either
Section 15 of the Securities Act or Section 20 of the Exchange Act to the same
extent as the foregoing indemnity from the Company to such Shareholder, but only
(i) with respect to information furnished in writing by such Shareholder or on
such Shareholder's behalf expressly for use in any registration statement or
prospectus relating to the Registrable Securities, or any amendment or
supplement thereto, or any preliminary prospectus or (ii) to the extent that any
loss, claim, damage, liability or expense described in Section 5.05 results from
the fact that a current copy of the prospectus (or, in the case of a prospectus,
the prospectus as amended or supplemented) was not sent or given to the Person
asserting any such loss, claim, damage, liability or expense at or prior to the
written confirmation of the sale of the Registrable Securities concerned to such
Person if it is determined that it was the responsibility of such Shareholder to
provide such Person with a current copy of the prospectus (or such amended or
supplemented prospectus, as the case may be) and such current copy of the
prospectus (or such amended or supplemented prospectus, as the case may be)
would have cured the defect giving rise to such loss, claim, damage, liability
or expense. Each such Shareholder shall be prepared, if required by the
underwriting agreement, to indemnify and hold harmless underwriters of the
Registrable Securities, their officers and directors and each person who
controls such underwriters on substantially the same basis as that of the
indemnification of the Company provided in this Section 5.06. As a condition to
including Registrable Securities in any registration statement filed in
accordance with Article 5 hereof, the Company may require that it shall have
received an undertaking reasonably satisfactory to it from any underwriter to
indemnify and hold it harmless to the extent customarily provided by
underwriters with respect to similar securities.

                  No Shareholder shall be liable under Section 5.06 for any
damage thereunder in excess of the net proceeds realized by such Shareholder in
the sale of the Registrable Securities of such Shareholder.

                  Section 5.07. CONDUCT OF INDEMNIFICATION PROCEEDINGS. In case
any proceeding (including any governmental investigation) shall be instituted
involving any Person in respect of which indemnity may be sought pursuant to
this Article 5, such Person (an "Indemnified Party") shall promptly notify the
Person against whom such indemnity may be sought (the "Indemnifying Party") in
writing and the Indemnifying Party shall assume the defense thereof, including
the employment of counsel reasonably satisfactory to such Indemnified Party, and
shall assume the payment of all fees and expenses; provided that the failure of
any Indemnified Party so to notify the Indemnifying Party shall not relieve the
Indemnifying Party of its obligations hereunder except to the extent that the
Indemnifying Party is materially and actually prejudiced by such failure to
notify. In any such proceeding, any Indemnified Party shall have the right to
retain its

                                      -21-


<PAGE>



own counsel, but the fees and expenses of such counsel shall be at the expense
of such Indemnified Party unless (i) the Indemnifying Party and the Indemnified
Party shall have mutually agreed to the retention of such counsel or (ii) in the
reasonable judgment of such Indemnified Party representation of both parties by
the same counsel would be inappropriate due to actual or potential differing
interests between them. It is understood that the Indemnifying Party shall not,
in connection with any proceeding or related proceedings in the same
jurisdiction, be liable for the reasonable fees and expenses of more than one
separate firm of attorneys (in addition to any local counsel) at any time for
all such Indemnified Parties, and that all such fees and expenses shall be
reimbursed as they are incurred. In the case of any such separate firm for the
Indemnified Parties, such firm shall be designated in writing by the Indemnified
Parties. The Indemnifying Party shall not be liable for any settlement of any
proceeding effected without its written consent, but if settled with such
consent, or if there be a final judgment for the plaintiff, the Indemnifying
Party shall indemnify and hold harmless such Indemnified Parties from and
against any and all losses, claims, damages, liabilities and expenses or
liability (to the extent stated above) by reason of such settlement or judgment.
No Indemnifying Party shall, without the prior written consent of the
Indemnified Party, effect any settlement of any pending or threatened proceeding
in respect of which any Indemnified Party is or could have been a party and
indemnity could have been sought hereunder by such Indemnified Party, unless
such settlement includes an unconditional release of such Indemnified Party from
all liability arising out of such proceeding.

                  Section 5.08. CONTRIBUTION. If the indemnification provided
for in this Article 5 is held by a court of competent jurisdiction to be
unavailable to the Indemnified Parties in respect of any losses, claims,
damages, liabilities or expenses referred to herein, then each such Indemnifying
Party, in lieu of indemnifying such Indemnified Party, shall contribute to the
amount paid or payable by such Indemnified Party as a result of such losses,
claims, damages or liabilities (i) as between the Company and the Shareholders
holding Registrable Securities covered by a registration statement and their
related Indemnified Parties on the one hand and the underwriters and their
related Indemnified Parties on the other, in such proportion as is appropriate
to reflect the relative benefits received by the Company and such Shareholders
on the one hand and the underwriters on the other, from the offering of the
Shareholders' Registrable Securities, or if such allocation is not permitted by
applicable law, in such proportion as is appropriate to reflect not only the
relative benefits but also the relative fault of the Company and such
Shareholders on the one hand and of such underwriters on the other in connection
with the statements or omissions which resulted in such losses, claims, damages
or liabilities, as well as any other relevant equitable considerations and (ii)
as between the Company and their related Indemnified Parties on the one hand and
each such Shareholder and their related Indemnified Parties on the other, in
such proportion as is appropriate to reflect the relative fault of the Company
and of each such Shareholder in connection with such statements or omissions, as
well as any other relevant equitable considerations. The relative benefits
received by the Company and such Shareholders on the one hand and such
underwriters on the other shall be deemed to be in the same proportion as the
total proceeds from the offering (net of underwriting discounts and commissions
but before deducting expenses) received by the Company and such Shareholders

                                      -22-


<PAGE>



bear to the total underwriting discounts and commissions received by such
underwriters, in each case as set forth in the table on the cover page of the
prospectus. The relative fault of the Company and such Shareholders on the one
hand and of such underwriters on the other shall be determined by reference to,
among other things, whether the untrue or alleged untrue statement of a material
fact or the omission or alleged omission to state a material fact relates to
information supplied by the Company and such Shareholders or by such
underwriters. The relative fault of the Company on the one hand and of each such
Shareholder on the other shall be determined by reference to, among other
things, whether the untrue or alleged untrue statement of a material fact or the
omission or alleged omission to state a material fact relates to information
supplied by such party, and the parties' relative intent, knowledge, access to
information and opportunity to correct or prevent such statement or omission.

                  The Company and the Shareholders agree that it would not be
just and equitable if contribution pursuant to this Section 5.08 were determined
by pro rata allocation or by any other method of allocation which does not take
account of the equitable considerations referred to in the immediately preceding
paragraph. The amount paid or payable by an Indemnified Party as a result of the
losses, claims, damages, liabilities or expenses referred to in the immediately
preceding paragraph shall be deemed to include, subject to the limitations set
forth above, any legal or other expenses reasonably incurred by such Indemnified
Party in connection with investigating or defending any such action or claim.
Notwithstanding the provisions of this Section 5.08 no underwriter shall be
required to contribute any amount in excess of the underwriting discount
applicable to securities purchased by such underwriter in such offering, less
the aggregate amount of any damages which such underwriter has otherwise been
required to pay by reason of such untrue or alleged untrue statement or omission
or alleged omission, and no Shareholder shall be required to contribute any
amount in excess of the amount by which the net proceeds realized on the sale of
the Registrable Securities of such Shareholder exceeds the amount of any damages
which such Shareholder has otherwise been required to pay by reason of such
untrue or alleged untrue statement or omission or alleged omission. No person
guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of
the Securities Act) shall be entitled to contribution from any person who was
not guilty of such fraudulent misrepresentation. Each Shareholder's obligation
to contribute pursuant to this Section 5.08 is several in the proportion that
the proceeds of the offering received by such Shareholder bears to the total
proceeds of the offering received by all such Shareholders and not joint.

                  Section 5.09. PARTICIPATION IN PUBLIC OFFERING. No Person may
participate in any Underwritten Public Offering hereunder unless such Person (a)
agrees to sell such Person's securities on the basis provided in any
underwriting arrangements to be entered into in connection with such
Underwritten Public Offering and (b) completes and executes all questionnaires,
powers of attorney, indemnities, underwriting agreements and other documents
reasonably required under the terms of such underwriting arrangements and the
provisions of this Agreement in respect of registration rights.


                                      -23-


<PAGE>



                  Section 5.10. RULE 144. The Company covenants that it will
file the reports required to be filed by it under the Securities Act and the
Exchange Act and the rules and regulations adopted by the SEC thereunder (or, if
the Company is not required to file such reports, it will, upon the request of
any holder of Registrable Securities, make publicly available such information),
and it will take such further action as any holder of Registrable Securities may
reasonably request, all to the extent required from time to time to enable such
holder to sell shares of Registrable Securities without registration under the
Securities Act within the limitation of the exemptions provided by (i) Rule 144
under the Securities Act, as such Rule may be amended from time to time, or (ii)
any similar rule or regulation hereafter adopted by the SEC. Upon the request of
any holder of Registrable Securities, the Company will deliver to such holder a
written statement as to whether it has complied with such requirements.
Notwithstanding anything contained in this Section 5.10, the Company may
de-register under Section 12 of the Exchange Act if it then is permitted to do
so pursuant to the Exchange Act and the rules and regulations thereunder and, in
such circumstances, shall not be required hereby to file any reports which may
be necessary in order for Rule 144 or any similar rule or regulation to be
available.

                  Section 5.11. NO TRANSFER OF REGISTRATION RIGHTS. None of the
rights of Shareholders under this Article 5 shall be assignable by any
Shareholder to any Person acquiring securities of such Shareholder in any Public
Offering or pursuant to a distribution to the public under Rule 144 under the
Securities Act.


                                    ARTICLE 6

                        CERTAIN COVENANTS AND AGREEMENTS

                  Section 6.01. LIMITATIONS ON SUBSEQUENT REGISTRATION. Without
the prior written consent of Shareholders holding at least 51% of the Shares
held by all Shareholders, the Company shall not enter into any agreement with
any holder or prospective holder of any securities of the Company (a) that would
allow such holder or prospective holder to include such securities in any
registration filed pursuant to Section 5.01 or 5.02 hereof, unless under the
terms of such agreement, such holder or prospective holder may include such
securities in any such registration only to the extent that the inclusion of
such securities would not reduce the amount of the Registrable Securities of the
Shareholders included therein or (b) on terms otherwise more favorable than this
Agreement.

                  Section 6.02. LIMITATION ON PURCHASE OF COMMON STOCK. Until
the earlier to occur of (i) the fifth anniversary of the Closing Date or (ii)
the occurrence of a Change in Control no Kleinknecht Shareholder shall acquire
any shares of Common Stock or securities convertible into or exercisable or
exchangeable for Common Stock except (x) as a Permitted Transferee in a transfer
from any other Kleinknecht Shareholder which is otherwise permitted under the
terms of Article 3 hereof or (y) pursuant to stock options granted by the
Company.


                                      -24-


<PAGE>



                                    ARTICLE 7

                                  MISCELLANEOUS

                  Section 7.01. ENTIRE AGREEMENT. This Agreement, including all
exhibits hereto, constitutes the entire agreement and supersedes all prior
agreements and undertakings, both written and oral, among the parties, or any of
them, with respect to the subject matter hereof and except as otherwise
expressly provided herein.

                  Section 7.02. BINDING EFFECT; BENEFIT. This Agreement shall
inure to the benefit of and be binding upon the parties hereto and their
respective heirs, successors, legal representatives and permitted assigns.
Except as expressly provided in Sections 5.05 and 5.06, nothing in this
Agreement, expressed or implied, is intended to confer on any Person other than
the parties hereto, and their respective heirs, successors, legal
representatives and permitted assigns, any rights, remedies, obligations or
liabilities under or by reason of this Agreement.

                  Section 7.03. ASSIGNABILITY. (a) Neither this Agreement nor
any right, remedy, obligation or liability arising hereunder or by reason hereof
shall be assignable by the Company or any Shareholder; provided that (i) any
Permitted Transferee acquiring shares of Common Stock in a transfer permitted
under this Agreement shall execute and deliver to the Company a Joinder
Agreement, and (ii) with the prior written consent of Shareholders holding at
least 50% of the Shares held by all Shareholders, the rights and obligations of
the Shareholders under Article 5 shall be assignable by the Shareholders to any
Third Party acquiring Registrable Securities in a transfer permitted under this
Agreement.

                  Section 7.04. AMENDMENT; WAIVER; TERMINATION. (a) No provision
of this Agreement may be waived except by an instrument in writing executed by
the party against whom the waiver is to be effective. No provision of this
Agreement may be amended or otherwise modified except by an instrument in
writing executed by the Company and holders of at least 50% of the Shares held
by the Shareholders at the time of such proposed amendment or modification.

                  (b) In addition, any amendment or modification of any
provision of this Agreement that would adversely affect any (i) CSH Shareholder
may be effected only with the consent of CSH Shareholders holding at least 50%
of the Shares held by the CSH Shareholders, (ii) Kleinknecht Shareholder may be
effected only with the consent of Kleinknecht Shareholders holding at least 50%
of the Shares held by the Kleinknecht Shareholders, (iii) Walsh Shareholder may
be effected only with the consent of Walsh Shareholders holding at least 50% of
the Shares held by the Walsh Shareholders or (iv) Servidio Shareholder may be
effected only with the consent of Servidio Shareholders holding at least 50% of
the Shares held by the Servidio Shareholders.


                                      -25-


<PAGE>



                  (c) This Agreement shall terminate on the tenth anniversary of
the date hereof unless earlier terminated.

                  Section 7.05. NOTICES. All notices, requests, claims, demands
and other communications hereunder shall be in writing and shall be given (and
shall be deemed to have been duly received if so given) by hand delivery,
telegram, telex or telecopy, or by mail (registered or certified mail, postage
prepaid, return receipt requested) or by any courier service providing proof of
delivery. All communications hereunder shall be delivered to the respective
parties at the following addresses:

                  (i)      if to the Company to:

                           IPC Information Systems, Inc.
                           Wall Street Plaza
                           88 Pine Street
                           New York, NY  10005
                           Attention:  General Counsel
                           Fax:  (212) 858-7959

                           with copies to:

                           Citicorp Venture Capital, Ltd.
                           399 Park Avenue - 14th Floor
                           New York, NY  10043
                           Attention:  Richard M. Cashin, Jr.
                           Fax:  (212) 888-2940

                           and

                           Morgan, Lewis & Bockius LLP
                           101 Park Avenue
                           New York, NY  10178
                           Attention:  Philip H. Werner, Esq.
                           Fax:  (212) 309-6273

                           and

                           Thacher, Proffitt & Wood
                           Two World Trade Center
                           New York, NY 10048
                           Attention: Thomas N. Talley, Esq.
                           Fax: (212) 432-7152


                                      -26-


<PAGE>



                  (ii)     if to any CSH Shareholder, to:

                           Cable Systems Holding, LLC
                           505 North 51st Avenue
                           Phoenix, Arizona  85043-2701
                           Attention: Peter Woog
                           Fax:  (602) 233-5782

                           with copies to:

                           Citicorp Venture Capital, Ltd.
                           399 Park Avenue - 14th Floor
                           New York, NY  10043
                           Attention:  Richard M. Cashin, Jr.
                           Fax:  (212) 888-2940

                           and

                           Morgan, Lewis & Bockius LLP
                           101 Park Avenue
                           New York, NY  10178
                           Attention:  Philip H. Werner, Esq.
                           Fax:  (212) 309-6273

                  (iii) If to any Kleinknecht Shareholder, to:

                           Richard P. Kleinknecht
                           15 Banbury Lane
                           Huntington, NY  11745

                           with a copy to:

                           White & Case
                           1155 Avenue of the Americas
                           New York, New York
                           Attention:  Edward F. Rover, Esq.
                           Fax:  (212) 354-8113


                                      -27-


<PAGE>



                  (iv)     If to any Walsh Shareholder, to:

                           IPC Information Systems, Inc.
                           Wall Street Plaza
                           88 Pine Street
                           New York, NY  10005
                           Attention:  David Walsh
                           Fax:  (212) 344-5106

                  (v)      If to any Servidio Shareholder, to:

                           IPC Information Systems, Inc.
                           Wall Street Plaza
                           88 Pine Street
                           New York, NY  10005

                           Attention: Anthony Servidio
                           Fax:  (212) 344-5106

                           with a copy to:

                           Cahill Gordon & Reindel
                           80 Pine Street
                           New York, NY  10005
                           Attention:  Jonathan Schaffzin, Esq.
                           Fax:  (212) 269-5420

or to such other address as the person to whom notice is given may have
previously furnished to the others in writing in the manner set forth above.

                  Section 7.06. HEADINGS. The headings contained in this
Agreement are for the convenience of reference purposes only and shall not
affect in any way the meaning or interpretation of this Agreement.

                  Section 7.07. 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 shall be deemed to be an original but
all of which taken together shall constitute one and the same agreement.

                  Section 7.08. GOVERNING LAW. This Agreement shall be governed
and construed in accordance with the laws of the State of New York, without
giving effect to any choice of law or conflict of law provision or rule that
would cause the application of the laws of any jurisdiction other than the State
of New York, except to the extent that the General Corporation

                                      -28-


<PAGE>



Law of the State of Delaware applies as a result of the Company being
incorporated in the State of Delaware, in which case such General Corporation
Law shall apply.

                  Section 7.09. SPECIFIC ENFORCEMENT. The parties hereto agree
that irreparable damage would occur in the event that any of the provisions of
this Agreement were not performed in accordance with their specific terms. It is
accordingly agreed that the parties hereto shall be entitled to specific
performance of the terms hereof, this being in addition to any other remedy to
which they are entitled at law or in equity.

                  Section 7.10. CERTAIN ACTIONS. Unless otherwise expressly
provided herein, whenever any action is required under this Agreement by:

                  (a) the CSH Stockholders (as a group, as opposed to the
exercise by a CSH Shareholder of its individual rights hereunder), it shall be
by the affirmative vote of the holders of at least 51% of the Shares then held
by the CSH Shareholders as a group; or

                  (b) the Kleinknecht Shareholders (as a group, as opposed to
the exercise by a Kleinknecht Shareholder of its individual rights hereunder),
it shall be by the affirmative vote of the holders of at least 51% of the Shares
then held by the Kleinknecht Shareholders as a group.

                  (c) the Walsh Shareholders (as a group, as opposed to the
exercise by a Walsh Shareholder of its individual rights hereunder), it shall be
by the affirmative vote of the holders of at least 51% of the Shares then held
by the Walsh Shareholders as a group.

                  (d) the Servidio Shareholders (as a group, as opposed to the
exercise of a Servidio Shareholder of its individual rights hereunder), it shall
be by the affirmative vote of the holders of at least 51% of the Shares then
held by the Servidio Shareholders as a group.

                  Section 7.11. CONSENT TO JURISDICTION; EXPENSES. (a) Any suit,
action or proceeding seeking to enforce any provision of, or based on any matter
arising out of or in connection with, this Agreement or the transactions
contemplated hereby shall be brought in any Federal Court sitting in New York,
New York, or any New York State court sitting in New York, New York, and each of
the parties hereby consents to the exclusive jurisdiction of such courts (and of
the appropriate appellate courts therefrom) in any such suit, action or
proceeding and irrevocably waives, to the fullest extent permitted by law, any
objection which it may now or hereafter have to the laying of the venue of any
such suit, action or proceeding in any such court or that any such suit, action
or proceeding which is brought in any such court has been brought in an
inconvenient forum. Process in any such suit, action or proceeding may be served
on any party anywhere in the world, whether within or without the jurisdiction
of any such court. Without limiting the foregoing, each party agrees that
service of process on such party by any method provided in Section 7.05 shall be
deemed effective service of process on such party and consents to the personal
jurisdiction of any Federal Court sitting in New York, New York, or any New York
State court sitting in New York, New York.

                                      -29-


<PAGE>




                  (b) In any dispute arising under this Agreement among any of
the parties hereto, the costs and expenses (including, without limitation, the
reasonable fees and expenses of counsel) incurred by the prevailing party shall
be paid by the party that does not prevail.

                  Section 7.12. 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
shall nevertheless remain in full force and effect so long as the economic or
legal substance of the transactions contemplated by the Merger Agreement is not
affected in any manner adverse to any party. Upon such determination that any
term or other provision is invalid, illegal or incapable of being enforced, the
parties hereto shall negotiate in good faith to modify this Agreement so as to
effect the original intent of the parties as closely as possible in an
acceptable manner.

                  Section 7.13. ADDITIONAL STOCKHOLDER. In the event that CSI
shall acquire Common Stock, CSH agrees to cover CSI to become a party to this
Agreement by executing the signature page hereof.

                  Section 7.14. SCHEDULE I. The parties hereto shall cooperate
in causing Schedule I hereto to set forth the securities of the Company held by
them.

                  Section 7.15. EFFECTIVENESS. It is a condition precedent to
the effectiveness of this Agreement that the "Merger" under and as defined in
the Merger Agreement shall have been consummated.

                           [Signature Page to Follow]



                                      -30-


<PAGE>



                  IN WITNESS WHEREOF, the parties hereto have caused this
Agreement to be duly executed by their respective authorized officers as of the
day and year first above written.

                                   IPC INFORMATION SYSTEMS, INC.



                                   By:    /S/ S.T. CLONTZ
                                         -------------------------------
                                         Name:       S.T. Clontz
                                         Title:      President and C.E.O.

                                   CABLE SYSTEMS HOLDING, LLC



                                   By:   /S/ PETER A. WOOG
                                         -------------------------------
                                         Name:       Peter A. Woog
                                         Title:      President


                                      /S/ RICHARD KLEINKNECHT
                                      -------------------------------
                                   Richard Kleinknecht


                                      /S/ DAVID WALSH
                                      -------------------------------
                                   David Walsh


                                      /S/ ANTHONY SERVIDIO
                                      ------------------------------- 
                                    Anthony Servidio

                                      -31-


<PAGE>




                                                                     SCHEDULE I


                              SECURITIES OWNERSHIP







<PAGE>


                                                                      EXHIBIT A


                            FORM OF JOINDER AGREEMENT
                            -------------------------



IPC Information Systems, Inc.
88 Pine Street
New York, New York  10005

Attention:  Chief Executive Officer

Gentlemen:

                  In consideration of the transfer to the undersigned of _____
Shares of Common Stock, par value $.01 per share, [Describe any other security
being transferred] of IPC Information Systems, Inc., a Delaware corporation (the
"Company"), the undersigned represents that it is a Permitted Transferee of
[Insert name of transferor] and agrees that, as of the date written below, [he]
[she] [it] shall become a party to, and a Permitted Transferee as defined in,
that certain Investors Agreement dated as of December 18, 1998, as such
agreement may have been or may be amended from time to time (the "Agreement"),
among the Company and the persons named therein, and as a Permitted transferee
shall be fully bound by, and subject to, all of the covenants, terms and
conditions of the Agreement that were applicable to the undersigned's transferor
as though an original party thereto and shall be deemed a [Kleinknecht
Shareholder] [CSH Shareholder] for purposes thereof.

                  Executed as of the    day of        ,

                           TRANSFEREE:__________________

                           Address:   ___________________
                                      ___________________


                                                                EXECUTION COPY


                    SHARE EXCHANGE AND TERMINATION AGREEMENT


                  SHARE EXCHANGE AND TERMINATION AGREEMENT, dated as of December
18, 1997 ("Agreement"), among IPC Information Systems, Inc., a Delaware corpora
tion ("IPC"), International Exchange Network Ltd. ("IXNET"), a Delaware
corporation, David Walsh ("Walsh") and Anthony Servidio ("Servidio" and together
with Walsh, sometimes collectively referred to herein as the "IXNET Minority
Stockholders").

                  WHEREAS, Walsh owns 336 shares (the "Walsh IXNET Shares") of
Common Stock, par value $.01 per share, of IXNET (the "IXNET Common Stock") and
Servidio owns 224 shares of IXNET Common Stock (the "Servidio IXNET Shares");

                  WHEREAS, IXNET, IPC and each of Walsh and Servidio wish to
exchange the shares of IXNET Common Stock owned by each of Walsh and Servidio
for common stock, par value $.01 per share, of IPC ("IPC Common Stock"); and

                  WHEREAS, for U.S. federal income tax purposes, it is intended
that the exchange pursuant to this Agreement shall qualify as a tax-free
reorganization under Sections 354(a)(1) and 368(a)(1)(B) of the U.S. Internal
Revenue Code of 1986, as amended (the "Code");

                  NOW, THEREFORE, in consideration of the mutual agreements
contained herein and other good and valuable consideration, receipt of which is
acknowledged, the parties hereto agree as follows:

                  1. CERTAIN DEFINITIONS. The following terms, when used in this
Agreement, shall have the following meanings (such definitions to be equally
applicable to both singular and plural terms of the terms defined):

                  "AFFILIATE" means, with respect to any Person, any other
Person directly or indirectly Controlling, Controlled by, or under common
Control with such Person, provided that no securityholder of IPC shall be deemed
an Affiliate of any other securityholder solely by reason of any investment in
IPC.

                  "CONTROL" (including the terms "CONTROLLED BY" and "UNDER
COMMON CONTROL WITH") means the possession, directly or indirectly or as a
trustee or executor, of the power to direct or cause the direction of the
management or policies of a Person, whether through the ownership of stock, as a
trustee or executor, by contract or credit arrangement or otherwise.



<PAGE>



                  "PERSON" means an individual, corporation, partnership,
limited liability company, limited partnership, association, trust,
unincorporated organization or other entity or group (as defined in Section
13(d)(3) of the Securities Exchange Act of 1934, as amended).

                  "SUBSIDIARY" means, with respect to any Person, any entity of
which securities or other ownership interests having ordinary voting power to
elect a majority of the board of directors or other persons performing similar
functions are at the time directly or indirectly owned by such Person.

                  2.       EXCHANGE OF SHARES; CLOSING.

                  (a) Subject to the terms and conditions of this Agreement, on
the Closing Date, (i) Walsh shall exchange the Walsh IXNET Shares for 152,381
shares of IPC Common Stock (the "Walsh IPC Shares"), provided that 10% of the
Walsh IPC Shares (the "Walsh Holdback Shares") shall be issued to Walsh pursuant
to the provisions set forth in Section 2(c) below, and (ii) Servidio shall
exchange the Servidio IXNET Shares for 101,587 shares of IPC Common Stock (the
"Servidio IPC Shares"), provided that 10% of the Servidio IPC Shares (the
"Servidio Holdback Shares") shall be issued to Servidio pursuant to the
provisions set forth in Section 2(c) below.

                  (b) The exchange of Walsh IXNET Shares and Servidio IXNET
Shares for IPC Common Stock will take place on the date ("Closing Date") of the
closing ("Closing") of the transactions contemplated hereby to be held at the
offices of Morgan, Lewis & Bockius LLP, 101 Park Avenue, New York, New York
10178 immediately after the closing of the transactions contemplated by the
Merger Agreement (as defined in Section 3(a), below). At the Closing immediately
following the Effective Time (as defined in the Merger Agreement), (i) IPC will
deliver to Walsh one or more certificates representing 152,381 shares of IPC
Common Stock registered in the name of Walsh against delivery by Walsh to IPC of
stock certificates representing the Walsh IXNET Shares, duly endorsed and in
proper form for transfer and (ii) IPC will deliver to Servidio one or more
certificates representing 101,587 shares of IPC Common Stock registered in the
name of Servidio against delivery by Servidio to IPC of stock certificates
representing the Servidio IXNET Shares, duly endorsed and in proper form for
transfer.

                  (c) The Walsh Holdback Shares shall be issued to Walsh and the
Servidio Holdback Shares shall be issued to Servidio if, prior to the six month
anniversary of the date hereof, releases (the "Third Party Releases"), in form
and substance reasonably satisfactory to IPC and executed by Lara Astor, Ariand
Kumar and Robert Mazer (the "Releasing Persons") shall have been delivered to
IPC with respect to any claim of the Releasing Persons arising in connection
with the transactions contemplated by this Agreement.

                  3. CONDITIONS OF IPC TO CLOSING. The obligations of IPC to
consummate the transactions contemplated hereby are subject to the fulfillment
to IPC's satisfaction, prior to or at the Closing, of the following conditions:


                                      - 2 -

<PAGE>




                  (a) The transactions contemplated by the Merger Agreement,
dated as of the date hereof (the "Merger Agreement"), between Arizona
Acquisition Corp. ("AAC") and IPC shall have been consummated.

                  (b) Each of the IXNET Minority Stockholders shall have
executed and delivered to IPC the release (the "Release") in the form of Exhibit
A attached hereto.

                  (c) (i) Walsh shall have entered into the Amended and Restated
Employment Agreement, dated the Closing Date, between IXNET and Walsh in the
form of Exhibit B hereto (the "Amended and Restated Walsh Employment Agreement")
and (ii) Servidio shall have entered into the Amended and Restated Employment
Agreement, dated the Closing Date, between IXNET and Servidio in the form of
Exhibit C hereto (the "Amended and Restated Servidio Employment Agreement").

                  (d) The representations and warranties of the IXNET Minority
Stockholders shall be true and correct in all respects at and as of the Closing
Date as if made on the Closing Date.

                  4. CONDITIONS OF IXNET MINORITY STOCKHOLDERS TO CLOSING. The
obligations the IXNET Minority Stockholders to consummate the transactions
contemplated hereby are subject to the fulfillment to the IXNET Minority
Stockholders' satisfaction, prior to or at the Closing, of the following
conditions:

                  (a) The transactions contemplated by the Merger Agreement
between AAC and IPC shall have been consummated.

                  (b) (i) IXNET shall have entered into the Amended and Restated
Walsh Employment Agreement and (ii) IXNET shall have entered into the Amended
and Restated Servidio Employment Agreement.

                  (c) The representations and warranties of IPC shall be true
and correct in all respects at and as of the Closing Date as if made on the
Closing Date.

                  (d) The Investors Agreement in the form of Exhibit D hereto
shall have been entered into by the parties named therein.

                  5. REPRESENTATIONS AND WARRANTIES OF IXNET MINORITY
STOCKHOLDERS. Each IXNET Minority Stockholder, severally and not jointly,
represents and warrants as to itself only as follows:

                  (a) Such IXNET Minority Stockholder has full right, power and
authority to execute and deliver this Agreement and the Release and to perform
its obligations hereunder and


                                      - 3 -

<PAGE>



thereunder and this Agreement and the Release have been duly authorized,
executed and delivered by such IXNET Minority Stockholder and enforceable in
accordance with its terms except as limited by (i) bankruptcy, insolvency,
reorganization, moratorium or other similar laws relating to creditor's rights
generally, (ii) general principles of equity, whether such enforceability is
considered in a proceeding in equity or at law, and to the discretion of the
court before which any proceeding therefor may be brought, or (iii) public
policy considerations or court decisions which may limit the rights of the
parties thereto for indemnification.

                  (b) (i) The Walsh IXNET Shares constitute all of the shares of
IXNET Common Stock owned by Walsh, (ii) the Servidio IXNET Shares constitute all
of the shares of IXNET Common Stock owned by Servidio, (iii) except as
contemplated by the Stockholders' Agreement, dated as of June 23, 1995 among
IPC, IXNET, Walsh and Servidio (the "Existing Stockholders' Agreement"), and the
Employment and Non-Competition Agreement, between IXNET and Walsh, dated as of
June 22, 1995 (the "Existing Walsh Employment Agreement"), Walsh does not own or
hold any other options, warrants or other rights, agreements, arrangements or
other commitments relating to shares of IXNET Common Stock which he owns of
record or relating to any other issued or unissued shares of IXNET Common Stock,
(iv) except as contemplated by the Existing Stockholders' Agreement and the
Employment and Non-Competition Agreement, between IXNET and Servidio, dated as
of June 22, 1995 (the "Existing Servidio Employment Agreement"), Servidio does
not own or hold any other options, warrants or other rights, agreements,
arrangements or other commitments relating to shares of IXNET Common Stock which
he owns of record or relating to any other issued or unissued shares of IXNET
Common Stock, (v) except as contemplated by the Existing Stockholders' Agreement
and the Existing Walsh Employment Agreement, Walsh owns the Walsh IXNET Shares
free and clear of all liens, security interests, claims, rights, limitations,
options or encumbrances whatsoever ("Liens") and (vi) except as contemplated by
the Existing Stockholders' Agreement and the Existing Servidio Employment
Agreement, Servidio owns the Servidio IXNET Shares free and clear of all Liens.

                  (c) The execution and delivery by such IXNET Minority
Stockholder of this Agreement, the performance by such IXNET Minority
Stockholder of its obligations hereunder and the consummation of the
transactions contemplated hereby do not and will not conflict with or result in
a violation or breach of any term, condition or provision of any contract or
agreement to which such IXNET Minority Stockholder is a party or by which any of
its assets or properties are bound.

                  (d) No broker, investment banker, financial advisor or other
Person is entitled to any broker's, finder's, financial advisor's or other
similar fee or commission in connection with the transactions contemplated
hereby based upon arrangements made by or on behalf of such IXNET Minority
Stockholder in his or her capacity as such.

                  (e) The shares of IPC Common Stock will be acquired by each
IXNET Minority Stockholder pursuant to this Agreement for his own account and
with no intention of


                                      - 4 -

<PAGE>



distributing or reselling such securities or any part thereof in any transaction
that would be in violation of the securities laws of the United States of
America, or any state, without prejudice, however, to the rights of such IXNET
Minority Stockholder at all times to sell or otherwise dispose of all or any
part of the shares of IPC Common Stock owned by such IXNET Minority Stockholder
under an effective registration statement under the Securities Act of 1933, as
amended (the "Securities Act"), or under an exemption from such registration
available under the Securities Act, and subject, nevertheless, to the
disposition of such IXNET Minority Stockholder's property being at all times
within his control. If such IXNET Minority Stockholder should in the future
decide to dispose of any of the shares of IPC Common Stock received pursuant to
this Agreement, such IXNET Minority Stockholder understands and agrees that it
may do so only in compliance with this Agreement, the Securities Act and
applicable state securities laws, as then in effect.

                  (f) Each IXNET Minority Stockholder is an "accredited
investor" as such term is defined in Rule 501(a) of Regulation D promulgated
under the Securities Act.

                  6. REPRESENTATIONS AND WARRANTIES OF IPC AND IXNET. Each of
IPC and IXNET, jointly but not severally, represents and warrants to each IXNET
Minority Stockholder that:

                  (a) Each of IPC and IXNET (i) has been duly incorporated and
is validly existing and in good standing under the laws of the State of
Delaware, and (ii) has all requisite corporate power and authority to own and
operate its properties and to carry on its business as now conducted and as
proposed to be conducted.

                  (b) Each of IPC and IXNET has the corporate power and
authority and the full legal right to execute, deliver and perform its
obligations under this Agreement, and IPC and IXNET has the corporate power and
authority to issue the IPC Common Stock and otherwise carry out the transactions
contemplated hereby and has taken all necessary corporate action to authorize
the transactions contemplated hereby. Upon issuance, the IPC Common Stock to be
issued pursuant to this Agreement shall be duly authorized, fully paid and
non-assessable. This Agreement has been duly authorized, executed and delivered
by each of IPC and IXNET and is the legal, valid and binding obligation of each
of IPC and IXNET, enforceable against it in accordance with its terms except as
limited by (i) bankruptcy, insolvency, reorganization, moratorium or other
similar laws relating to creditor's rights generally, (ii) general principles of
equity, whether such enforceability is considered in a proceeding in equity or
at law, and to the discretion of the court before which any proceeding therefor
may be brought, or (iii) public policy considerations or court decisions which
may limit the rights of the parties thereto for indemnification.

                  (c) The execution and delivery by IPC or IXNET, as the case
may be, of this Agreement, the performance by such Person of its obligations
hereunder and the consummation of the transactions contemplated hereby do not
and will not conflict with or result in a violation


                                      - 5 -

<PAGE>



or breach of any term, condition or provision of any contract or agreement to
which such Person is a party or by which any of its assets or properties are
bound.

                  7. COVENANTS OF THE IXNET MINORITY STOCKHOLDERS. (a) Walsh
shall enter into the Amended and Restated Employment Agreement, dated the
Closing Date, between IPC and Walsh and (b) Servidio shall enter into the
Amended and Restated Employment Agreement, dated the Closing Date, between IPC
and Servidio.

                  (b) Except as otherwise contemplated hereby, prior to the
Closing Date, no IXNET Minority Stockholder shall, directly or indirectly,
(other than, solely as directed in his capacity as an employee, in connection
with a Superior Acquisition Proposal (as such term is defined in the Merger
Agreement)) (i) except pursuant to the terms of this Agreement, offer for sale,
sell, transfer, tender, pledge, encumber, assign or otherwise dispose of
("Transfer"), enforce or permit the execution of the provisions of any
redemption agreement with the Company or enter into any contract, option or
other arrangement or understanding with respect to or consent to the Transfer
of, or exercise any discretionary powers to distribute, any or all of the Walsh
IXNET Shares or Servidio IXNET Shares, as the case may be or any interest
therein, including any trust income or principal; (ii) grant any proxies or
powers of attorney with respect to any of the Walsh IXNET Shares or Servidio
IXNET Shares, as the case may be; (iii) deposit any of the Walsh IXNET Shares or
Servidio IXNET Shares, as the case may be, into a voting trust or enter into a
voting agreement with respect to any such shares; or (iv) take any action that
would make any representation or warranty of such IXNET Minority Stockholder
contained herein untrue or incorrect or have the effect of preventing or
disabling such IXNET Minority Stockholder from performing his obligations under
this Agreement.

                  8. TERMINATION OF STOCKHOLDERS AGREEMENT. Effective upon the
Closing, the Existing Stockholders' Agreement is hereby terminated without any
liability to the parties thereto and has no further force and effect.

                  9.       TAX MATTERS.

                  (a)      IPC represents and warrants to the IXNET Minority 
Stockholders as follows:

                  (i) Following the Closing Date, IPC will be in "control" of
         IXNET. For purposes of this Section 10, "control" of a corporation
         means the direct ownership of stock of such corporation possessing at
         least 80% of the total combined voting power of all classes of stock of
         such corporation entitled to vote and at least 80% of the total number
         of shares of each other class of such corporation's stock.

                  (ii) IPC has no plan or intention to cause IXNET to issue
         additional shares of IXNET stock that would result in IPC losing
         control of IXNET;



                                      - 6 -

<PAGE>



                  (iii) IPC has no current plan or intention (a) to liquidate
         IXNET, (b) to merge IXNET with or into another corporation, (c) to sell
         or otherwise dispose of (whether by dividend distribution or otherwise)
         the stock of IXNET, except for transfers of stock of IXNET to another
         corporation controlled by IPC, or (d) to cause, suffer or permit IXNET
         to sell or otherwise dispose of (whether by dividend distribution or
         otherwise) any of IXNET's assets (except for transfers to corporations
         controlled by IXNET or dispositions made in the ordinary course of
         IXNET's business);

                  (iv) At the time of the Closing, IXNET will not have
         outstanding any warrants, options, convertible securities, or any other
         type of right pursuant to which any person could acquire stock in IXNET
         that, if exercised or converted, would affect IPC's retention of
         control of IXNET.

                  (v) Following the Closing, IPC will cause IXNET to continue
         IXNET's historic business, or continue to use a significant portion of
         its historic business assets in a business.

                  (vi) IPC shall not, nor shall it permit IXNET or any of its
         other subsidiaries to, take or cause to be taken any action, whether
         before or after the Closing, which it reasonably expects would
         disqualify the Merger as a tax-free reorganization within the meaning
         of Sections 354(a)(1) and 368(a)(1)(B) of the Code.

                  (vii) Following the Closing, IPC shall use its reasonable best
         efforts to conduct its business and otherwise act, and shall cause
         IXNET to use its reasonable best efforts to conduct its business and
         otherwise act, in a manner which would not jeopardize the
         characterization of this Agreement as a tax-free reorganization within
         the meaning of Sections 354(a)(1) and 368(a)(1)(B) of the Code.

The representations, warranties and covenants contained in this Section 9(a)
shall not be deemed to be breached (a) as a result of actions taken by the IXNET
Minority Stockholders that have not been approved by IXNET or IPC's board of
directors or (b) in the case of the representations, warranties and covenants
contained in clause (vi) or (vii) of this Section 9(a) by IXNET or IPC entering
into this Agreement, the Agreement and Plan of Merger, dated the date hereof,
between IPC and Arizona Acquisition Corp., the Investors Agreement, dated the
date hereof, among IPC and the parties named therein, the Amended and Restated
Labor Pool Agreement, dated the date hereof, between IPC and Kleinknecht
Electric Company, Inc., a New York Corporation ("KEC-NY"), the Amended and
Restated Labor Pool Agreement, dated the date hereof, between IPC and
Kleinknecht Electric Company, Inc., a New Jersey Corporation ("KEC-NJ"), the
Amended and Restated Corporate Opportunity Agreement, dated the date hereof,
among IPC, KEC-NY and KEC-NJ, the Amended and Restated Employment Agreement,
dated as of the Closing Date, by and between Richard Kleinknecht and IPC, the
Amended and Restated Employment Agreement, dated as of the Closing Date, between
Peter Kleinknecht and IPC, the Amended and Restated Employment Agreement, dated
as of the Closing Date, between David Walsh and IPC and the


                                      - 7 -

<PAGE>



Amended and Restated Employment Agreement, dated as of the Closing Date, between
Anthony Servidio and IPC (collectively, the "Operative Documents"), consummating
the transactions contemplated by the Operative Documents or doing any acts
required by the Operative Documents.

                  (b) IPC, IXNET, Walsh and Servidio will not take any position
on any Federal, state or local income or franchise tax return, or take any other
tax reporting position, that is inconsistent with the treatment of this
Agreement as a tax-free organization within the meaning of Sections 354(a)(1)
and 368(a)(1)(B) of the Code, unless otherwise required by a "determination" (as
defined in Section 1313(a)(1) of the Code) or by applicable state or local or
franchise tax law.

                  10.      NON-COMPETITION.

                  (a) For a period of two and one-half years after the Effective
Time, except as contemplated by this Agreement or the Merger Agreement, each of
the IXNET Minority Stockholders severally agrees, and shall cause each of his
respective Affiliates to agree, that any such Person shall not, directly or
indirectly, through any Person Controlled by such IXNET Minority Stockholder, in
any form or manner on a worldwide basis: (i) engage in any activities
competitive in any material respect with the business of IPC and its
Subsidiaries and Affiliates ("Business") for his or their own account or for the
account of any other Person, or (ii) become interested in any Person engaged in
activities competitive in any material respect with the Business as a partner,
shareholder, member, principal, agent, employee, trustee, consultant or in any
other relationship or capacity; PROVIDED, HOWEVER, that each of the IXNET
Minority Stockholders may own, directly or indirectly, solely as a passive
investment, securities of any Person if such IXNET Minority Stockholder or any
of his Affiliates, as the case may be (x) is not a Person in Control of, or a
member of a group that Controls, such Person and (y) does not, directly or
indirectly, own 5% or more of any voting class of securities of such Person.

                  (b) Each of the IXNET Minority Stockholders severally agrees
that the provisions of this Section 10 are necessary to protect the interests of
IPC or its Subsidiaries or Affiliates and are reasonable and valid in
geographical and temporal scope and in all other respects. If any court
determines that the provisions of this Section 10 or any part thereof are
unenforceable because of the duration or geographical scope of such provision,
such court will have the power to reduce the duration or scope of such
provision, as the case may be, and, in its reduced form, such provision will be
enforceable.

                  (c) If either of the IXNET Minority Stockholders commits a
breach, or threatens to commit a breach, of any of the provisions contained in
this Section 10, IPC shall have the following rights and remedies with respect
to such IXNET Minority Stockholder, each of which rights and remedies shall be
independent of the others, and shall be severally enforceable, and all of which
rights and remedies shall be in addition to, and not in lieu of, any other
rights and remedies available under law or in equity to IPC: the right and
remedy to have


                                      - 8 -

<PAGE>



the provisions of this Section 10 enforced by any court of competent
jurisdiction by injunction, restraining order, specific performance or other
equitable relief in favor of IPC, it being acknowledged and agreed that any
breach or threatened breach of the provisions of this Section 10 would cause
irreparable injury to IPC and that money damages would not provide an adequate
remedy to IPC.

                  11. TERMINATION. This Agreement shall automatically terminate
and be of no further force or effect upon the earlier to occur of (a) the
termination of the Merger Agreement in accordance with its terms or (b) April
30, 1998. Upon such termination of this Agreement, except for any rights any
party hereto may have in respect of any breach by any other party of its
obligations or representations or warranties hereunder, none of the parties
hereto shall have any further obligation or liability hereunder.

                  12.      MISCELLANEOUS.

                  (a) All notices, requests, claims, demands and other
communications hereunder shall be in writing and shall be given (and shall be
deemed to have been duly received if so given) by hand delivery, telegram, telex
or telecopy, or by mail (registered or certified mail, postage prepaid, return
receipt requested) or by any courier service, providing proof of delivery. All
communications hereunder shall be delivered to the respective parties at the
following addresses:

         If to Walsh:      David Walsh
                           2 South End Avenue
                           New York, NY  10280

         copy to:          Cahill Gordon & Reindel
                           80 Pine Street
                           New York, New York 10005
                           Attn:    Jonathan Schaffzin, Esq.
                           Telecopier No.:  (212) 269-5420

         If to Servidio:   Anthony Servidio
                           3 Hampshire Circle
                           Bronxville, NY 10708

         copy to:          Cahill Gordon & Reindel
                           80 Pine Street
                           New York, New York 10005
                           Attn:    Jonathan Schaffzin, Esq.
                           Telecopier No.:  (212) 269-5420



                                      - 9 -

<PAGE>



         If to IPC
         or IXNET:         IPC Information Systems, Inc.
                           Wall Street Plaza
                           88 Pine Street
                           New York, New York 10005
                           Attn:    Daniel Utevsky, Esq.
                           Telecopier No.: (212) 344-5106

         copy to:          Arizona Acquisition Corp.
                           c/o Cable Systems Holding LLC
                           505 North 51st Avenue
                           Phoenix, Arizona  85043-2701
                           Attn: Peter Woog

         and:              Citicorp Venture Capital, Ltd.
                           399 Park Avenue
                           14th Floor, Zone 4
                           New York, NY  10043
                           Attn:    Richard M. Cashin, Jr.
                           Telecopier No.:  (212) 888-2940

         and:              Morgan, Lewis & Bockius LLP
                           101 Park Avenue
                           New York, NY  10178
                           Attn:    Philip H. Werner, Esq.
                           Telecopier No.:  (212) 309-6273

         and:              Thacher, Proffitt & Wood
                           Two World Trade Center
                           New York, NY  10048
                           Attn:    Thomas N. Talley, Esq.
                           Telecopier No.:  (212) 432-7152

or to such other address as the person to whom notice is given may have
previously furnished to the others in writing in the manner set forth above.

                  (b) At any time prior to the Closing Date, any party hereto
may, with respect to any other party hereto, (i) extend the time for the
performance of any of the obligations or other acts, (ii) waive any inaccuracies
in the representations and warranties contained herein or in any document
delivered pursuant hereto or (iii) waive compliance with any of the agreements
or conditions contained herein. Any such extension or waiver shall be valid if
set forth in an instrument in writing signed by the party or parties to be bound
thereby.



                                     - 10 -

<PAGE>



                  (c) The headings contained in this Agreement are for the
convenience of reference purposes only and shall not affect in any way the
meaning or interpretation of this Agreement.

                  (d) 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 shall nevertheless
remain in full force and effect so long as the economic or legal substance of
the transactions contemplated by the this Agreement and the Merger Agreement is
not affected in any manner adverse to any party. Upon such determination that
any term or other provision is invalid, illegal or incapable of being enforced,
the parties hereto shall negotiate in good faith to modify this Agreement so as
to effect the original intent of the parties as closely as possible in an
acceptable manner to the end that the transactions contemplated by this
Agreement and the Merger Agreement are fulfilled to the extent possible.

                  (e) This Agreement, including all exhibits hereto, constitutes
the entire agreement and supersedes all prior agreements and undertakings, both
written and oral, among the parties, or any of them, with respect to the subject
matter hereof and except as otherwise expressly provided herein.

                  (f) Neither this Agreement nor any of the rights or
obligations hereunder may be assigned by any party (whether by operation of law
or otherwise) without the prior written consent of the other parties hereto.
Subject to the preceding sentence, this Agreement shall be binding upon and
inure to the benefit of the parties hereto and their respective successors,
descendants and legal representatives and permitted assigns. No other Person
shall have any right, benefit or obligation under this Agreement as a third
party beneficiary or otherwise; provided that it is expressly understood that
AAC shall have the same rights of IPC or IXNET to enforce the terms and
provisions of this Agreement to the same extent as if AAC was a party hereto.

                  (g) The parties hereto agree that irreparable damage would
occur in the event that any of the provisions of this Agreement were not
performed in accordance with their specific terms. It is accordingly agreed that
the parties hereto shall be entitled to specific performance of the terms
hereof, this being in addition to any other remedy to which they are entitled at
law or in equity.

                  (h) No failure or delay on the part of any party hereto in the
exercise of any right hereunder shall impair such right or be construed to be a
waiver of, or acquiescence in, any breach of any representation, warranty or
agreement herein, nor shall any single or partial exercise of any such right
preclude other or further exercise thereof or of any other right. All rights and
remedies existing under this Agreement are cumulative to, and not exclusive of,
any rights or remedies otherwise available.



                                     - 11 -

<PAGE>



                  (i) Each party agrees to bear its own expenses in connection
with the transactions contemplated hereby.

                  (j) This Agreement shall be governed by, and construed in
accordance with, the laws of the State of New York, without regard to any
principles of conflicts of law that might indicate the applicability of the laws
of any jurisdiction other than the State of New York.

                  (k) EACH OF THE PARTIES HERETO IRREVOCABLY AND UNCONDITIONALLY
WAIVES TRIAL BY JURY IN ANY LEGAL ACTION OR PROCEEDING RELATING TO THIS
AGREEMENT OR THE TRANSACTIONS CONTEMPLATED BY THE MERGER AGREEMENT AND FOR ANY
COUNTERCLAIM THEREIN.

                  (l) This Agreement may be executed in one or more
counterparts, and by the different parties hereto in separate counterparts, each
of which when executed shall be deemed to be an original but all of which taken
together shall constitute one and the same agreement.

                  (m) Each of the IXNET Minority Stockholders hereby
acknowledges that, for purposes of Title IV of the Employee Retirement Income
Security Act of 1974, as amended, IPC and IXNET may become members of a
controlled group of corporations that includes Citicorp Venture Capital, Ltd.
and its Affiliates.



                                     - 12 -

<PAGE>



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

                                        IPC INFORMATION SYSTEMS, INC.


                                        By:    /S/ S.T. CLONTZ
                                               --------------------------
                                               Name:  S.T. Clontz
                                               Title:    President and C.E.O.
     

                                        INTERNATIONAL EXCHANGE NETWORK
                                        LTD.


                                        By:   /S/ DANIEL UTEVSKY
                                               --------------------------
                                               Name: Daniel Utevsky
                                               Title:   Secretary


                                               /S/ DAVID WALSH
                                               --------------------------
                                               David Walsh


                                               /S/ ANTHONY SERVIDIO
                                               --------------------------
                                               Anthony Servidio




                                     - 13 -

<PAGE>



                                                                       EXHIBIT A
                                                                       ---------

                            IXNET STOCKHOLDER RELEASE
                            -------------------------

       In consideration for the payment of the consideration to the undersigned
pursuant to the Share Exchange and Termination Agreement, the undersigned hereby
releases, waives and discharges, covenants not to sue and agrees to hold
harmless IPC, IXNET or any of their respective present and former affiliates,
subsidiaries, shareholders, employees, directors, officers, representatives,
agents, successors or assigns from all actions, causes of action, suits,
liabilities, claims, obligations and rights whatsoever, known (with respect to
clause (a) and (b) below) and known or unknown (with respect to clause (b)
below), fixed, conditional or contingent, in law or in equity, that the
undersigned or any of his successors or assigns ever had, now has or hereafter
can, shall or may have for any matters based upon or arising out of (a) any
indemnity obligation of IPC or IXNET to the undersigned resulting from facts or
circumstances existing on or before the Closing Date of any kind whatsoever or
(b) the Stockholders Agreement, dated June 23, 1995, among IPC, IXNET, Walsh and
Servidio, and any and all claims, costs, expenses and attorneys' fees with
respect to any of the foregoing. Capitalized terms used herein and not otherwise
defined herein shall have the meanings ascribed to them in the Share Exchange
and Termination Agreement, dated December 18, 1997, among the parties named
therein (the "Share Exchange and Termination Agreement").


                                      ------------------------------------------
                                      [IXNET Releasing Stockholder]


Dated: _________ __, 1998.



<PAGE>



                                                                       EXHIBIT B
                                                                       ---------
                         


                 AMENDED AND RESTATED WALSH EMPLOYMENT AGREEMENT
                 -----------------------------------------------




<PAGE>



                                                                      EXHIBIT C
                                                                      ---------


               AMENDED AND RESTATED SERVIDIO EMPLOYMENT AGREEMENT
               --------------------------------------------------






<PAGE>


                                                                       EXHIBIT D
                                                                       ---------


                               INVESTORS AGREEMENT
                               -------------------




                                                                  EXECUTION COPY


                    AMENDED AND RESTATED EMPLOYMENT AGREEMENT
                    -----------------------------------------

         THIS AMENDED AND RESTATED EMPLOYMENT AGREEMENT, dated as of the 18th
day of December 1997 (the "Agreement"), by and among David Walsh (the
"Executive") and International Exchange Networks, Ltd., a Delaware corporation
("the Company").

         WHEREAS, upon the closings (the "Closings") of the transactions
contemplated by each of (a) the Agreement and Plan of Merger, dated as of the
date hereof ("Merger Agreement"), between Arizona Acquisition Corp. and IPC
Information Systems, Inc., a Delaware corporation ("IPC") and (b) the Share
Exchange and Termination Agreement, dated as of the date hereof, among
Executive, the Company and other parties named therein, the Company will become
a wholly-owned subsidiary of IPC;

         WHEREAS, after the Closings, the Executive is expected to make a major
contribution to the growth, profitability and financial strength of the Company;

         WHEREAS, the Company and the Executive are parties to an Employment and
Non-Competition Agreement dated as of June 22, 1995 (the "Existing Agreement");
and

         WHEREAS, effective upon the Closings, the Company desire to retain the
services of the Executive, and the Executive desires to be retained by the
Company, on the terms and conditions set forth below.

         NOW, THEREFORE, in consideration of the premises and the mutual
promises herein contained and for other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:

         1. CERTAIN DEFINITIONS. The following terms, when used in this
Agreement, shall have the following meanings (such definitions to be equally
applicable to both singular and plural terms of the terms defined):

                  "Affiliate" means, with respect to any Person, any other
Person directly or indirectly Controlling, Controlled by, or under common
Control with such Person.

                  "Cause" means an omission, act or action or series of
omissions, acts or actions of the Executive which, in the determination of the
Board (as defined in Section 3), constitute(s), cause(s) or result(s) in: (a)
the Executive's material dishonesty including, without limitation, theft, fraud,
embezzlement, material financial misrepresentation or other similar behavior or
action in his dealings with or with respect to the Company or any Subsidiary or
Affiliate thereof or entity with which the Company, a Subsidiary or Affiliate
thereof, shall be engaged in or be attempting to engage in commerce, (b) the
conviction of the Executive for, or the Executive's entry of a plea of guilty or



<PAGE>



nolo contendere to, the commission of a felony, (c) the willful refusal of the
Executive to follow the lawful directives of the Board of Directors of the
Company (the "Board") with respect to his duties hereunder, which directives
shall be consistent with his position as an officer of the Company as set forth
in Section 3.2 hereof, which refusal is not cured by the Executive within 30
calendar days after written notice from the Board to the Executive setting forth
with reasonable specificity the nature thereof, or (d) the material breach of
any provision of this Agreement which is not cured by the Executive within 30
calendar days after written notice from the Board to the Executive setting forth
with reasonable specificity the nature of such breach.

                  "Control" (including the terms "Controlled by" and "under
common Control with") means the possession, directly or indirectly or as a
trustee or executor, of the power to direct or cause the direction of the
management of a Person, whether through the ownership of stock, as a trustee or
executor, by contract or credit agreement or otherwise.

                  "Disability" means the inability of the Executive to perform
his duties and obligations for the Company as required by this Agreement,
because of a disability which is not of an apparently temporary nature, which
results from mental or bodily injury, sickness or disease or any combination
thereof, and which has lasted a period of more than 180 consecutive days or more
than 180 days within any period of 365 consecutive days.

                  "Good Reason" shall mean (i) a material and adverse change in
the Executive's duties and responsibilities as set forth in Section 3.2 hereof,
without the express written consent of the Executive, (ii) the attempted
relocation of the Executive's principal place of employment to a location at
least 50 miles away from the location of such employment on the date of the
effectiveness of this Agreement without the express written consent of the
Executive, or (iii) a material breach by the Company of any provision of this
Agreement or any other agreement between the Executive and the Company or any of
its Affiliates (but only if such material breach is as to the Executive) which,
in any case, is not cured by the Company within 30 calendar days after written
notice from the Executive to the Board setting forth with reasonable specificity
the nature of such breach.

                  "Person" means an individual, corporation, partnership,
limited liability company, limited partnership, association, trust,
unincorporated organization or other entity or group (as defined in Section
13(d)(3) of the Securities and Exchange Act of 1934, as amended).

                  "Subsidiary" means, with respect to any Person, any entity
which securities or other ownership interests having ordinary voting power to
elect a majority of the Board of Directors or other persons performing similar
functions are at the time directly or indirectly owned by such
Person.

         2. EMPLOYMENT; TERM. The Company agrees to employ the Executive, and
the Executive hereby agrees to accept such employment by the Company, on the
terms and conditions set forth herein. The parties hereto agree that such
employment shall not be on an "at-will" basis, but shall be governed by the
terms and conditions of this Agreement during the Term (as defined


                                       -2-

<PAGE>



herein) of this Agreement. Unless sooner terminated in the manner hereinafter
provided, the term of this Agreement shall commence on the date of the Closings
and shall expire on the fifth anniversary thereof (the "Initial Term");
PROVIDED, HOWEVER, that this Agreement shall automatically be extended for
successive one year terms, unless either party shall notify the other at least
90 days prior to the scheduled expiration of this Agreement that the Agreement
shall not be so extended (the Initial Term, plus any extensions thereof,
hereinafter referred to as the "Term"). The parties agree that (i) upon the
Closings, the Existing Agreement shall be have no further force and effect with
no liability to any of the parties thereto and no further payments shall be made
thereunder, (ii) should the Closings not occur, this Agreement shall be void and
have no force and effect, and (iii) this Agreement shall not become effective
until the Closings occur.

         3. DUTIES.

                  3.1 OFFICE; BOARD MEMBERSHIP. During the Term, the Executive
shall serve as Chief Executive Officer of the Company, reporting only to the
Board and to the IPC Board of Directors. In addition, during the Term, the
Executive shall serve as Chairman of the Board and as a member of the Board.

                  3.2 DUTIES. Subject always to the supervision and direction of
the Board, the Executive shall have the duties and responsibilities consistent
with his position Chief Executive Officer of the Company. Without limiting the
generality of the foregoing, and subject to the supervision and direction of the
Board, such duties and responsibilities shall include the day-to-day management
and control over all aspects of the business and operations of the Company,
including, without limitation, sales practices, price of merchandise, inventory
matters, customer relations matters, and the hiring, firing and compensation of
employees of the Company, all with the authority and discretion consistent with
the position of Chief Executive Officer of the Company.

                  3.3 FULL WORKING TIME. (a) During the Term, the Executive
shall devote his full working time and his best efforts, and apply all of his
skill and experience, to the proper performance of his duties hereunder and to
the business and affairs of the Company. During the Term, the Executive, without
the prior written approval of the Board, shall not, either directly or
indirectly, actively participate in any other business or accept any employment
or business office whatsoever (including but not limited to serving as a
director ) from any other Person (but the foregoing shall not preclude the
Executive, subject to Section 7 hereof, from (i) serving as a director of any
nonprofit or charitable organization, or (ii) making an investment in any other
business, so long as in any such case the Executive does not actively
participate in such other business or organization and such activity does not
interfere with the Executive's ability to perform his duties hereunder and does
not constitute a conflict of interest with the Company or any of its Affiliates
in the reasonable opinion of the Board).

                  (b) On or before the Closings, Executive shall have reduced
his ownership interest in Voyager Networks, Inc. to a level where such interest
would be permissible pursuant to the proviso contained in Section 7.1 hereof.


                                       -3-

<PAGE>



         4. SALARY AND BENEFITS.

                  4.1 BASE SALARY. The Company shall pay the Executive during
the Term a base salary at an annual rate of $225,000 per annum, payable in
accordance with the standard payroll practices of the Company ("Base Salary").
It is understood that the Base Salary shall be the Executive's minimum annual
compensation during the Term. The Base Salary shall be reviewed annually by the
Board, or the Compensation Committee of the Board, and may be increased (but not
decreased) at its discretion.

                  4.2 BONUS. For each fiscal year of the Company ending during
the Term, the Company may pay to the Executive a bonus based upon the
achievement of certain financial performance criteria of the Company for such
year established by the Board, after consultation with the Company management
team (a "Bonus"). With respect to each such fiscal year, the parties hereto
agree that Executive shall have the opportunity to earn a Bonus of at least
$175,000.

                  4.3 STOCK OPTIONS. (a) Immediately after giving effect to the
transactions contemplated by the Merger Agreement, the Executive shall be
granted an option to purchase shares of the common stock of IPC (the "Option")
pursuant to the IPC Information Systems, Inc. Stock Option Plan. The terms of
the Option shall be set forth on the Option Grant Certificate (the
"Certificate") attached on Exhibit A hereto, which Certificate is hereby
incorporated by reference into this Agreement.

                       (b) If, prior to the second anniversary of the Closings, 
(i) IPC distributes the common stock of the Company that it holds to the
stockholders of IPC, or (ii) there is an initial public offering or private
offering of the Company's common stock (other than a private sale of control of
the Company to single person or group of persons not involving a public
offering), then, effective upon such distribution or public offering, the
Company shall grant to the Executive a fully vested and immediately exercisable
option to purchase 3% of the shares of Company common stock then outstanding
(determined on a fully diluted basis after giving effect to such distribution or
offering), provided that the Executive is an employee of the Company on the date
of such grant, or prior thereto, terminated employment under circumstances
described in Section 5.2(b). The terms of such option shall provide that, at the
earliest practicable time following the time that the Company becomes subject to
the reporting requirements pursuant to Section 13 or 15(d) of the Securities
Exchange Act of 1934, the Company shall take such action as may be necessary so
that the shares acquired upon exercise of the option may be resold without
restriction, other than securities law restrictions imposed by reason of the
Executive's status as an "affiliate" within the meaning of the Securities Act of
1933. The exercise price of such option shall be not more than the fair market
value of the Company common stock at the date of grant. In addition, the Company
shall grant options with respect to an additional 2% of the shares of Company
common stock then outstanding, which options shall be granted to such employees
of the Company and in such amounts and on such terms as shall be determined by
the Company in consultation with the Executive.

                  4.4 BENEFITS. The Executive shall participate, to the maximum
extent that he is eligible therefor, in any and all plans or programs which may
be maintained by the Company for its


                                       -4-

<PAGE>



employees and/or senior executives generally, or the Executive specifically,
providing insurance, medical benefits, retirement benefits, or other like fringe
benefits. The amount and quality of such benefits shall in no event be
materially worse than those in effect prior to the Closings, unless obtaining
any such benefits would be commercially impracticable. The Company shall provide
the Executive with a customary level of Directors and Officers insurance during
the Term, to the extent that such policy is reasonably available to the Company
from time to time.

                  4.5 VACATION. The Executive shall be entitled to three (3)
weeks annual paid vacation each year of the Term to be taken in accordance with
the Company' vacation policy.

                  4.6 EXPENSES. The Company shall pay or reimburse the Executive
for reasonable business expenses actually incurred or paid by the Executive
during the Term, in the performance of his services hereunder; provided that
such expenses are consistent with the Company policy. Such payment or
reimbursement shall be made upon presentation of expense statements or vouchers
or other supporting information acceptable to the Company and otherwise in
accordance with the Company policy then in effect.

                  4.7 EXCISE TAX GROSS-UP. The Company shall pay the Executive
such amounts that, on an after-tax basis (including federal income and excise
taxes, and state and local income taxes) equals the excise tax, if any, imposed
by Section 4999 of the Internal Revenue Code of 1986, as amended (the "Code")
upon by the Executive by reason of amounts payable by the Company or its
Affiliates either under this Agreement or outside of this Agreement that are
described in Section 280G(b)(2)(A)(i) of the Code. For purposes of this Section
4.7, the Executive shall be deemed to pay federal, state and local income taxes
at the highest marginal rate of taxation.

                  4.8 DEDUCTIONS. The Company shall deduct from all compensation
payable hereunder such payroll, withholding and other taxes as may be required
by law.

         5. TERMINATION.

                  5.1 GENERAL. The Company, by action of the Board, shall have
the right to terminate the employment of Executive at any time with or without
Cause.

                  5.2 TERMINATION UNDER CERTAIN CIRCUMSTANCES. (a) In the event
Executive's employment with the Company is terminated prior to the expiration of
the Term by reason of (i) the Executive's resignation without Good Reason, (ii)
death, (iii) Disability or (iv) the Executive's discharge by the Company for
Cause, this Agreement shall terminate including, without limitation, the
Company's obligations to provide any compensation, benefits or severance to the
Executive under Section 4 hereof or otherwise.

                       (b) In the event that the Executive's employment with the
Company is terminated by the Executive prior to the expiration of the Term for
Good Reason, or by the Company prior to the expiration of the Term other than by
reason of (i) the Executive's resignation, (ii) death,


                                       -5-

<PAGE>



(iii) Disability or (iv) the Executive's discharge by the Company for Cause, the
Company shall pay or provide the Executive the following:

                            (i) a lump sum payment, payable as soon as
practicable following such termination, in an amount that equals the product of
(A) the greater of three or the number of years and fractions thereof remaining
in the Term (assuming that the Term would expire as of the last day of the
then-effective Term without extension thereof), and (B) the sum of the
Executive's Base Salary in effect on the date of such termination and the
Executive's Bonus (which for purposes of the clause shall equal the quotient of
the sum of all Bonuses paid hereunder for fiscal years of the Company ending
prior to the date of such termination, divided by the number of all such fiscal
years; PROVIDED, HOWEVER, that if such termination occurs prior to the end of
the first such fiscal year, then the Bonus shall equal $175,000); and

                            (ii) during the remainder of the Term (assuming that
the Term would expire as of the last day of the then-effective Term without
extension thereof), or three years after the date of such termination,
continuation of the Executive's health, life and disability benefits received
pursuant to Section 4.4 hereof.

The Company and Executive hereby stipulate that the damages which may be
incurred by the Executive as a consequence of any such termination of employment
are not capable of accurate measurement as of the date first above written and
that the benefits and payments provided for in this Agreement constitute a
reasonable estimate under the circumstances of, and are in full satisfaction of,
all damages sustained as a consequence of any such termination of employment,
without any requirement of proof of actual damage and without regard to the
Executive's efforts, if any, to mitigate damages. The Company and the Executive
further agree that the Company may condition the payments and benefits (if any)
due under this Section on the receipt of the Executive's resignation from any
and all positions which he holds as an officer, director or committee member
with respect to the Company, or any Subsidiary or Affiliate thereof.

         6. PROPRIETARY INFORMATION.

                  6.1 DISCLOSURE TO THE COMPANY. The Executive shall promptly
disclose to the Company in such form and manner as the Company may reasonably
require (a) all operations, systems, services, methods, developments,
inventions, improvements and other information or data pertaining to the
business or activities of the Company and its Subsidiaries and Affiliates as are
conceived, originated, discovered or developed by Executive (whether or not
copyrighted or patented or capable of being copyrighted or patented) during the
Term of his employment with either IPC or the Company (whether before or after
the date hereof), and (b) such information and data pertaining to the business,
operations, personnel, activities, financial affairs, and other information
relating to the Company and its Subsidiaries and Affiliates and their respective
customers, suppliers, employees and other persons having business dealings with
the Company and its Subsidiaries and Affiliates as may be reasonably required
for the Company to operate its business. It is understood that such information
is proprietary in nature and shall (as between the Company and Executive) be for
the exclusive use and benefit of the Company and shall be and remain the
property of the Company both


                                       -6-

<PAGE>



during the Term and thereafter. If so requested by the Company, the Executive
shall execute and deliver to the Company any instrument as the Company may
reasonably request to effectuate the assignment of any such proprietary
information to the Company. Without limiting the generality of the foregoing,
the Executive hereby releases and waives and assigns to the Company any and all
claims and rights which he has against any of the Company or any Subsidiary or
Affiliate thereof or any of the technology, "knowhow," licenses or other
proprietary rights or processes of the Company or any Subsidiary or Affiliate
thereof.

                  6.2 POST-EMPLOYMENT. In the event that the Executive leaves
the employ of the Company for any reason, including, without limitation, the
expiration of the Term, the Executive shall deliver to the Company (and shall
not keep in his possession, recreate or deliver to anyone other than the
Company) any and all devices, records, data, notes, reports, proposals, lists,
correspondence, specifications, drawings, blueprints, sketches, materials,
equipment, other documents or property, together with all copies thereof (in
whatever medium recorded) belonging to the Company or any Subsidiary or
Affiliate thereof or any of their respective successors or assigns.

         7. NON-COMPETITION AND NON-SOLICITATION.

                  7.1 NON-COMPETITION. During the Term and, except where the
Executive's employment is terminated under circumstances described in Section
5.2(b), for a period of 2 1/2 years thereafter, except as contemplated by this
Agreement or the Merger Agreement, the Executive agrees, and shall cause each of
his respective Affiliates to agree, that any such Person shall not, directly or
indirectly, through any Person Controlled by such Executive, in any form or
manner on a worldwide basis: (a) engage in any activities competitive in any
material respect with the business of the Company and its Subsidiaries and
Affiliates ("Business") for his or their own account or for the account of any
other Person, or (b) become interested in any Person engaged in activities
competitive in any material respect with the Business as a partner, shareholder,
member, principal, agent, employee, trustee, consultant or in any other
relationship or capacity; PROVIDED, HOWEVER, that Executive may own, directly or
indirectly, solely as a passive investment, securities of any Person if the
Executive or any of his Affiliates, as the case may be (x) is not a Person in
Control of, or a member of a group that Controls, such Person and (y) does not,
directly or indirectly, own 5% or more of any voting class of securities of such
Person.

                  7.2 NON-SOLICITATION. During the Term and for a period of 2
1/2 years thereafter, the Executive will not, directly or indirectly, use
proprietary knowledge or information relating to the Company or its Subsidiaries
or Affiliates obtained during the course of Executive's employment with the
Company with the intention to, or which a reasonable person would construe to
(a) interfere with or disrupt any present or prospective relationship,
contractual or otherwise, between the Company or its Subsidiaries or Affiliates
and any customer, supplier, employee, consultant or other person having business
dealings with the Company or its Subsidiaries or Affiliates, or (b) employ or
solicit the employment or engagement by others of any employee or consultant of
the Company or its Subsidiaries or Affiliates who was such an employee or
consultant at the time of termination of the Executive's employment hereunder or
within one year prior thereto.


                                       -7-

<PAGE>




                  7.3 SCOPE. The Executive agrees that the provisions of this
Section 7 are necessary to protect the interests of the Company or its
Subsidiaries or Affiliates and are reasonable and valid in geographical and
temporal scope and in all other respects. If any court determines that the
provisions of this Section 7 or any part thereof are unenforceable because of
the duration or geographical scope of such provision, such court will have the
power to reduce the duration or scope of such provision, as the case may be,
and, in its reduced form, such provision will be enforceable.

         8. NONDISCLOSURE. Except with the prior written consent of the Company
in each instance or as may be reasonably necessary to perform the Executive's
services hereunder, the Executive shall not disclose, use, publish, or in any
other manner reveal, directly or indirectly, at any time during or after the
Term, any Confidential Information relating to the Company or any Subsidiary or
Affiliate thereof acquired by him prior to, during the course of, or incident
to, his employment hereunder. "Confidential Information" shall mean (a)
proprietary information, trade secrets and know-how of the Company and its
Affiliates in which one may obtain a legally protected interest, (b)
confidential information relating to the business, operations, systems,
networks, services, pricing policies, marketing plans, product development plans
and inventions and research of the Company or its Affiliates, and (c)
confidential information relating to the financial affairs and results of
operations and forecasts or projections of the Company and its Affiliates;
provided that not information shall constitute Confidential Information if it
(1) is generally known by persons other than the Company or its Affiliates, or
(2) is known by persons other than the Company or its Affiliates by reason of
the action of persons other than the Executive or any person acting at the
Executive's direction or with the Executive's consent, or (3) is compelled to be
disclosed by law or legal process. In the event Executive is required (by oral
questions, interrogatories, requests for information or documents in legal
proceedings, subpoenas, civil investigative demand or similar process) to
disclose any such Confidential Information, the Executive shall provide the
Company with prompt written notice of such requirement so that the Company may
seek a protective order or other appropriate remedy and/or waive compliance with
the provisions of this Section. If, in the absence of such a protective order or
other remedy or receipt of a waiver by the Company, the Executive is nonetheless
advised by his legal counsel that he is legally compelled to disclose such
Confidential Information, the Executive may, without liability hereunder,
disclose only that portion of such confidential information which such counsel
advises is legally required to be disclosed.

         9. REMEDIES FOR CERTAIN BREACHES. If the Executive commits a breach, or
threatens to commit a breach, of any of the provisions of Sections 6, 7 and/or 8
hereof, the Company shall have the following rights and remedies, each of which
rights and remedies shall be independent of the others, and shall be severally
enforceable, and all of which rights and remedies shall be in addition to, and
not in lieu of, any other rights and remedies available under law or in equity
to the Company, the right and remedy to have the provisions of Sections 6, 7
and/or 8 enforced by any court of competent jurisdiction by injunction,
restraining order, specific performance or other equitable relief in favor of
the Company, it being acknowledged and agreed that any breach or threatened
breach of Sections 6, 7 and/or 8 hereof by the Executive will cause irreparable
injury to the Company and that money damages will not provide an adequate remedy
to the Company.


                                       -8-

<PAGE>




         10. ARBITRATION. Any dispute, controversy or claim, at any time arising
out of this or relating to this Agreement, or the breach, termination or
invalidity thereof (other than any dispute, controversy or claim pursuant to
Sections 6, 7, 8 and/or 9 hereof, which may, at the option of the Company, be
submitted to any court having jurisdiction), shall be referred to final and
binding arbitration by a panel of three arbitrators selected according to the
Commercial Arbitration Rules of the American Arbitration Association (but not
held under its auspices). In the event the arbitrator selected by the Executive
and the arbitrator selected by the Company cannot, within 30 days after the
appointment of both, agree on a third arbitrator, he or she shall be selected by
the Chief Judge of the Federal District Court of the Southern District of New
York. The place of arbitration shall be New York, NY. Any arbitral award may be
entered as a judgment in any court of competent jurisdiction.

         11. MISCELLANEOUS.

                  11.1 NOTICES. All notices, requests, claims, demands and other
communications hereunder shall be in writing and shall be given (and shall be
deemed to have been duly received if so given) by hand delivery, telegram, telex
or telecopy, or by mail (registered or certified mail, postage prepaid, return
receipt requested) or by any courier service, providing proof of delivery. All
communications hereunder shall be delivered to the respective parties at the
following addresses:

                  If to the Executive:     David Walsh
                                           2 South End Avenue
                                           New York, NY 10280

                  copy to:                 Cahill Gordon & Reindel
                                           80 Pine Street
                                           New York, NY  10005
                                           Telecopier No.: (212) 269-5420
                                           Attn: Jonathan Schaffzin, Esq.

                  If to the Company:       International Exchange Networks, Ltd.
                                           c/o IPC Information Systems, Inc.
                                           Wall Street Plaza
                                           88 Pine Street - 15th Floor
                                           New York, NY 10005
                                           Telecopier No.: (212) 858-7959
                                           Attn: General Counsel

                  copy to:                 Morgan Lewis & Bockius
                                           101 Park Avenue
                                           New York, NY  10178
                                           Telecopier No.: (212) 309-6273


                                       -9-

<PAGE>



                                           Attn: Philip H. Werner, Esq.

or to such other address as the party to whom notice is given may have
previously furnished to the other parties hereto in writing in the manner set
forth above.

                  11.2 ENTIRE AGREEMENT. Upon the Closings, this Agreement shall
constitute the entire agreement between the Executive and the Company with
respect to the Company' employment of the Executive and supersedes all prior
agreements and understandings, written or oral, with respect thereto, including,
without limitation, the Existing Agreement.

                  11.3 AMENDMENTS AND WAIVERS. Any term of this Agreement may be
amended and the observance of any term of this Agreement may be waived (either
generally or in a particular instance and either retroactively or
prospectively), only by (a) an instrument in writing and signed by the party
against whom such amendment or waiver is sought to be enforced, and (b) in the
case of the Company, such amendment or waiver also must be duly authorized by an
appropriate resolution of the Board.

                  11.4 SUCCESSORS AND ASSIGNS. The Company shall have the right
to assign this Agreement. The personal services of the Executive are the subject
of this Agreement and no part of his rights or obligations hereunder may be
assigned, transferred, pledged or encumbered by the Executive. This Agreement
shall inure to the benefit of, and be binding upon (a) the parties hereto, (b)
the heirs, administrators, executors and personal representatives of the
Executive and (c) the successors and assigns of the Company as provided herein.

                  11.5 GOVERNING LAW. This Agreement, including the validity
hereof and the rights and obligations of the parties hereunder, and all
amendments and supplements hereof and all waivers and consents hereunder, shall
be construed in accordance with and governed by the laws of the State of New
York without giving effect to any conflicts of law provisions or rule, that
would cause the application of the laws of any other jurisdiction.

                  11.6 SEVERABILITY. If any provisions of this Agreement as
applied to any part or to any circumstance shall be adjudged by a court to be
invalid or unenforceable, the same shall in no way affect any other provision of
this Agreement, the application of such provision in any other circumstances or
the validity or enforceability of this Agreement.

                  11.7 SURVIVAL. The rights and obligations of the Company and
Executive pursuant to Sections 6, 7, 8, 9, 10 and this Section 11 shall survive
the termination of the Executive's employment with the Company and the
expiration of the Term.

                  11.9 CAPTIONS. The headings and captions used in this
Agreement are used for convenience only and are not to be considered in
construing or interpreting this Agreement.



                                      -10-

<PAGE>



                  11.10 COUNTERPARTS. This Agreement may be executed in two or
more counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.


                                      -11-

<PAGE>



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

                                        EXECUTIVE:


                                         /s/ David Walsh
                                        ---------------------------------
                                        Name: David Walsh


                                        INTERNATIONAL EXCHANGE NETWORKS, LTD.


                                        By: /s/ Daniel Utevsky
                                           ------------------------------
                                           Name:  Daniel Utevsky
                                           Title: General Counsel/Secretary


         Solely as to Section 4.3(a) hereof, agreed to and accepted by:

                                        IPC INFORMATION SYSTEMS, INC.


                                        By: /s/ S.T. Clontz
                                           ------------------------------
                                           Name:  S.T. Clontz
                                           Title: President and CEO





                                      -12-

<PAGE>


                                                                       EXHIBIT A
                                                                       ---------

                          IPC INFORMATION SYSTEMS, INC.
                                STOCK OPTION PLAN
                                GRANT CERTIFICATE

This Grant Certificate evidences the grant of an option pursuant to the
provisions of the Stock Option Plan (the "Plan") of IPC Information Systems,
Inc. (the "Company") to the individual whose name appears below (the "Grantee"),
covering the specific number of shares of Common Stock of the Company ("Stock")
set forth below, pursuant to the provisions of the Plan and on the following
express terms and conditions:

1. Name of Grantee:

         David Walsh

2. Number of shares of Stock of the Company which are subject to this option:

         108,975 shares [representing 2.36% of outstanding stock on a fully
         diluted basis].

3. Exercise price of shares subject to this option:

         $21 per share

4. Date of grant of this option:

         [Closing Date]

5. Vesting:

         See Section 5(b) of the Plan.

6. Termination date of this option:

         See Section 5(c) of the Plan.

The Grantee hereby acknowledges receipt of a copy of the Plan as presently in
effect. The text and all of the terms and provisions of the Plan are
incorporated herein by reference, and this option is subject to these terms and
provisions in all respects. At any time when the Grantee wishes to exercise this
option, in whole or in part, the Grantee shall submit to the Company a written
notice of exercise, specifying the exercise date and the number of shares to be
exercised. Upon exercise, the Grantee shall remit to the Company the exercise
price, plus an amount sufficient to satisfy any withholding tax obligation of
the Company that arises in connection with such exercise.


IPC INFORMATION SYSTEMS, INC.                AGREED TO AND ACCEPTED BY:



By:________________________                  _____________________________
                                                    Grantee


                                                                  EXECUTION COPY


                    AMENDED AND RESTATED EMPLOYMENT AGREEMENT
                    -----------------------------------------

         THIS AMENDED AND RESTATED EMPLOYMENT AGREEMENT, dated as of the 18th
day of December 1997 (the "Agreement"), by and among Anthony Servidio (the
"Executive") and International Exchange Networks, Ltd., a Delaware corporation
("the Company").

         WHEREAS, upon the closings (the "Closings") of the transactions
contemplated by each of (a) the Agreement and Plan of Merger, dated as of the
date hereof ("Merger Agreement"), between Arizona Acquisition Corp. and IPC
Information Systems, Inc., a Delaware corporation ("IPC") and (b) the Share
Exchange and Termination Agreement, dated as of the date hereof, among
Executive, the Company and other parties named therein, the Company will become
a wholly-owned subsidiary of IPC;

         WHEREAS, after the Closings, the Executive is expected to make a major
contribution to the growth, profitability and financial strength of the Company;

         WHEREAS, the Company and the Executive are parties to an Employment and
Non-Competition Agreement dated as of June 22, 1995 (the "Existing Agreement");
and

         WHEREAS, effective upon the Closings, the Company desire to retain the
services of the Executive, and the Executive desires to be retained by the
Company, on the terms and conditions set forth below.

         NOW, THEREFORE, in consideration of the premises and the mutual
promises herein contained and for other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:

         1. CERTAIN DEFINITIONS. The following terms, when used in this
Agreement, shall have the following meanings (such definitions to be equally
applicable to both singular and plural terms of the terms defined):

                  "Affiliate" means, with respect to any Person, any other
Person directly or indirectly Controlling, Controlled by, or under common
Control with such Person.

                  "Cause" means an omission, act or action or series of
omissions, acts or actions of the Executive which, in the determination of the
Board (as defined in Section 3), constitute(s), cause(s) or result(s) in: (a)
the Executive's material dishonesty including, without limitation, theft, fraud,
embezzlement, material financial misrepresentation or other similar behavior or
action in his dealings with or with respect to the Company or any Subsidiary or
Affiliate thereof or entity with which the Company, a Subsidiary or Affiliate
thereof, shall be engaged in or be attempting to engage in commerce, (b) the
conviction of the Executive for, or the Executive's entry of a plea of guilty or



<PAGE>



nolo contendere to, the commission of a felony, (c) the willful refusal of the
Executive to follow the lawful directives of the Board of Directors of the
Company (the "Board") with respect to his duties hereunder, which directives
shall be consistent with his position as an officer of the Company as set forth
in Section 3.2 hereof, which refusal is not cured by the Executive within 30
calendar days after written notice from the Board to the Executive setting forth
with reasonable specificity the nature thereof, or (d) the material breach of
any provision of this Agreement which is not cured by the Executive within 30
calendar days after written notice from the Board to the Executive setting forth
with reasonable specificity the nature of such breach.

                  "Control" (including the terms "Controlled by" and "under
common Control with") means the possession, directly or indirectly or as a
trustee or executor, of the power to direct or cause the direction of the
management of a Person, whether through the ownership of stock, as a trustee or
executor, by contract or credit agreement or otherwise.

                  "Disability" means the inability of the Executive to perform
his duties and obligations for the Company as required by this Agreement,
because of a disability which is not of an apparently temporary nature, which
results from mental or bodily injury, sickness or disease or any combination
thereof, and which has lasted a period of more than 180 consecutive days or more
than 180 days within any period of 365 consecutive days.

                  "Good Reason" shall mean (i) the attempted relocation of the
Executive's principal place of employment to a location at least 50 miles away
from the location of such employment on the date of the effectiveness of this
Agreement without the express written consent of the Executive, or (ii) a
material breach by the Company of any provision of this Agreement or any other
agreement between the Executive and the Company or any of its Affiliates (but
only if such material breach is as to the Executive) which, in any case, is not
cured by the Company within 30 calendar days after written notice from the
Executive to the Board setting forth with reasonable specificity the nature of
such breach.

                  "Person" means an individual, corporation, partnership,
limited liability company, limited partnership, association, trust,
unincorporated organization or other entity or group (as defined in Section
13(d)(3) of the Securities and Exchange Act of 1934, as amended).

                  "Subsidiary" means, with respect to any Person, any entity
which securities or other ownership interests having ordinary voting power to
elect a majority of the Board of Directors or other persons performing similar
functions are at the time directly or indirectly owned by such
Person.

         2. EMPLOYMENT; TERM. The Company agrees to employ the Executive, and
the Executive hereby agrees to accept such employment by the Company, on the
terms and conditions set forth herein. The parties hereto agree that such
employment shall not be on an "at-will" basis, but shall be governed by the
terms and conditions of this Agreement during the Term (as defined herein) of
this Agreement. Unless sooner terminated in the manner hereinafter provided, the
term


                                       -2-

<PAGE>



of this Agreement shall commence on the date of the Closings and shall expire on
the fifth anniversary thereof (the "Initial Term"); PROVIDED, HOWEVER, that this
Agreement shall automatically be extended for successive one year terms, unless
either party shall notify the other at least 90 days prior to the scheduled
expiration of this Agreement that the Agreement shall not be so extended (the
Initial Term, plus any extensions thereof, hereinafter referred to as the
"Term"). The parties agree that (i) upon the Closings, the Existing Agreement
shall be have no further force and effect with no liability to any of the
parties thereto and no further payments shall be made thereunder, (ii) should
the Closings not occur, this Agreement shall be void and have no force and
effect, and (iii) this Agreement shall not become effective until the Closings
occur.

         3. DUTIES.

                  3.1 OFFICE. During the Term, the Executive shall serve as
Executive Vice President, Sales of the Company, reporting only to the Chief
Executive Officer or the Board.

                  3.2 DUTIES. Subject always to the supervision and direction of
the Chief Executive Officer or Board, the Executive shall have the duties and
responsibilities as may be assigned to him by the Chief Executive Officer or the
Board.

                  3.3 FULL WORKING TIME. During the Term, the Executive shall
devote his full working time and his best efforts, and apply all of his skill
and experience, to the proper performance of his duties hereunder and to the
business and affairs of the Company. During the Term, the Executive, without the
prior written approval of the Board, shall not, either directly or indirectly,
actively participate in any other business or accept any employment or business
office whatsoever (including but not limited to serving as a director ) from any
other Person (but the foregoing shall not preclude the Executive, subject to
Section 7 hereof, from (i) serving as a director of any nonprofit or charitable
organization, or (ii) making an investment in any other business, so long as in
any such case the Executive does not actively participate in such other business
or organization and such activity does not interfere with the Executive's
ability to perform his duties hereunder and does not constitute a conflict of
interest with the Company or any of its Affiliates in the reasonable opinion of
the Board).

         4. SALARY AND BENEFITS.

                  4.1 BASE SALARY. The Company shall pay the Executive during
the Term a base salary at an annual rate of $190,000 per annum, payable in
accordance with the standard payroll practices of the Company ("Base Salary").
It is understood that the Base Salary shall be the Executive's minimum annual
compensation during the Term. The Base Salary shall be reviewed annually by the
Board, or the Compensation Committee of the Board, and may be increased (but not
decreased) at its discretion.

                  4.2 BONUS. For each fiscal year of the Company ending during
the Term, the Company will pay to the Executive a commissioned-based bonus based
upon revenues generated


                                       -3-

<PAGE>



directly by the Executive, the specific terms of which shall be established by
the Company (a "Bonus"). With respect to each such fiscal year, the parties
hereto agree that Executive shall be entitled to at least $110,000, payable in
monthly installments, which installments shall operate as a draw against
commissions actually earned.

                  4.3 STOCK OPTIONS. Immediately after giving effect to the
transactions contemplated by the Merger Agreement, the Executive shall be
granted an option to purchase shares of the common stock of IPC (the "Option")
pursuant to the IPC Information Systems, Inc. Stock Option Plan. The terms of
the Option shall be set forth on the Option Grant Certificate (the
"Certificate") attached on Exhibit A hereto, which Certificate is hereby
incorporated by reference into this Agreement.

                  4.4 AUTOMOBILE. The Executive shall be provided with an
appropriate automobile or a reasonable automobile allowance and related
operational expenses.

                  4.4 BENEFITS. The Executive shall participate, to the maximum
extent that he is eligible therefore, in any and all plans or programs which may
be maintained by the Company for its employees and/or senior executives
generally, or the Executive specifically, providing insurance, medical benefits,
retirement benefits, or other like fringe benefits. The amount and quality of
such benefits shall in no event be materially worse than those in effect prior
to the Closings, unless obtaining any such benefits would be commercially
impracticable. The Company shall provide the Executive with a customary level of
Directors and Officers insurance during the Term, to the extent that such policy
is reasonably available to the Company from time to time.

                  4.5 VACATION. The Executive shall be entitled to three (3)
weeks annual paid vacation each year of the Term to be taken in accordance with
the Company' vacation policy.

                  4.6 EXPENSES. The Company shall pay or reimburse the Executive
for reasonable business expenses actually incurred or paid by the Executive
during the Term, in the performance of his services hereunder; provided that
such expenses are consistent with the Company policy. Such payment or
reimbursement shall be made upon presentation of expense statements or vouchers
or other supporting information acceptable to the Company and otherwise in
accordance with the Company policy then in effect.

                  4.7 EXCISE TAX GROSS-UP. The Company shall pay the Executive
such amounts that, on an after-tax basis (including federal income and excise
taxes, and state and local income taxes) equals the excise tax, if any, imposed
by Section 4999 of the Internal Revenue Code of 1986, as amended (the "Code")
upon by the Executive by reason of amounts payable by the Company or its
Affiliates either under this Agreement or outside of this Agreement that are
described in Section 280G(b)(2)(A)(i) of the Code. For purposes of this Section
4.7, the Executive shall be deemed to pay federal, state and local income taxes
at the highest marginal rate of taxation.

                  4.8 DEDUCTIONS. The Company shall deduct from all compensation
payable hereunder such payroll, withholding and other taxes as may be required
by law.


                                       -4-

<PAGE>



         5. TERMINATION.

                  5.1 GENERAL. The Company, by action of the Board, shall have
the right to terminate the employment of Executive at any time with or without
Cause.

                  5.2 TERMINATION UNDER CERTAIN CIRCUMSTANCES. (a) In the event
Executive's employment with the Company is terminated prior to the expiration of
the Term by reason of (i) the Executive's resignation without Good Reason, (ii)
death, (iii) Disability or (iv) the Executive's discharge by the Company for
Cause, this Agreement shall terminate including, without limitation, the
Company's obligations to provide any compensation, benefits or severance to the
Executive under Section 4 hereof or otherwise.

                       (b) In the event that the Executive's employment with the
Company is terminated by the Executive prior to the expiration of the Term for
Good Reason, or by the Company prior to the expiration of the Term other than by
reason of (i) the Executive's resignation, (ii) death, (iii) Disability or (iv)
the Executive's discharge by the Company for Cause, the Company shall pay or
provide the Executive the following:

                            (i) a lump sum payment, payable as soon as
practicable following such termination, in an amount that equals the product of
(A) the greater of three or the number of years and fractions thereof remaining
in the Term (assuming that the Term would expire as of the last day of the
then-effective Term without extension thereof), and (B) the sum of the
Executive's Base Salary in effect on the date of such termination and the
Executive's Bonus (which for purposes of the clause shall equal the quotient of
the sum of all Bonuses paid hereunder for fiscal years of the Company ending
prior to the date of such termination, divided by the number of all such fiscal
years; PROVIDED, HOWEVER, that if such termination occurs prior to the end of
the first such fiscal year, then the Bonus shall equal $110,000);

                            (ii) during the remainder of the Term (assuming that
the Term would expire as of the last day of the then-effective Term without
extension thereof), or three years after the date of such termination,
continuation of the Executive's health, life and disability benefits received
pursuant to Section 4.4 hereof; and

                            (iii) a lump sum payment, payable as soon as
practicable following such termination, in an amount that, on an after-tax basis
(including federal income and excise taxes, and state and local income taxes)
equals the excise tax imposed by Section 4999 of the Internal Revenue Code of
1986, as amended (the "Code") upon by the Executive by reason of amounts payable
under this Section 5.2(b) (including this clause (iii)), as well as amounts
payable outside of this Agreement by the Company or its Affiliates that are
described in Section 280G(b)(2)(A)(i) of the Code. For purposes of this clause
(iii), the Executive shall be deemed to pay federal, state and local income
taxes at the highest marginal rate of taxation.



                                       -5-

<PAGE>



The Company and Executive hereby stipulate that the damages which may be
incurred by the Executive as a consequence of any such termination of employment
are not capable of accurate measurement as of the date first above written and
that the benefits and payments provided for in this Agreement constitute a
reasonable estimate under the circumstances of, and are in full satisfaction of,
all damages sustained as a consequence of any such termination of employment,
without any requirement of proof of actual damage and without regard to the
Executive's efforts, if any, to mitigate damages. The Company and the Executive
further agree that the Company may condition the payments and benefits (if any)
due under this Section on the receipt of the Executive's resignation from any
and all positions which he holds as an officer, director or committee member
with respect to the Company, or any Subsidiary or Affiliate thereof.

         6. PROPRIETARY INFORMATION.

                  6.1 DISCLOSURE TO THE COMPANY. The Executive shall promptly
disclose to the Company in such form and manner as the Company may reasonably
require (a) all operations, systems, services, methods, developments,
inventions, improvements and other information or data pertaining to the
business or activities of the Company and its Subsidiaries and Affiliates as are
conceived, originated, discovered or developed by Executive (whether or not
copyrighted or patented or capable of being copyrighted or patented) during the
Term of his employment with either IPC or the Company (whether before or after
the date hereof), and (b) such information and data pertaining to the business,
operations, personnel, activities, financial affairs, and other information
relating to the Company and its Subsidiaries and Affiliates and their respective
customers, suppliers, employees and other persons having business dealings with
the Company and its Subsidiaries and Affiliates as may be reasonably required
for the Company to operate its business. It is understood that such information
is proprietary in nature and shall (as between the Company and Executive) be for
the exclusive use and benefit of the Company and shall be and remain the
property of the Company both during the Term and thereafter. If so requested by
the Company, the Executive shall execute and deliver to the Company any
instrument as the Company may reasonably request to effectuate the assignment of
any such proprietary information to the Company. Without limiting the generality
of the foregoing, the Executive hereby releases and waives and assigns to the
Company any and all claims and rights which he has against any of the Company or
any Subsidiary or Affiliate thereof or any of the technology, "knowhow,"
licenses or other proprietary rights or processes of the Company or any
Subsidiary or Affiliate thereof.

                  6.2 POST-EMPLOYMENT. In the event that the Executive leaves
the employ of the Company for any reason, including, without limitation, the
expiration of the Term, the Executive shall deliver to the Company (and shall
not keep in his possession, recreate or deliver to anyone other than the
Company) any and all devices, records, data, notes, reports, proposals, lists,
correspondence, specifications, drawings, blueprints, sketches, materials,
equipment, other documents or property, together with all copies thereof (in
whatever medium recorded) belonging to the Company or any Subsidiary or
Affiliate thereof or any of their respective successors or assigns.



                                       -6-

<PAGE>



         7. NON-COMPETITION AND NON-SOLICITATION.

                  7.1 NON-COMPETITION. During the Term and, except where the
Executive's employment is terminated under circumstances described in Section
5.2(b), for a period of 2 1/2 years thereafter, except as contemplated by this
Agreement or the Merger Agreement, the Executive agrees, and shall cause each of
his respective Affiliates to agree, that any such Person shall not, directly or
indirectly, through any Person Controlled by such Executive, in any form or
manner on a worldwide basis: (a) engage in any activities competitive in any
material respect with the business of the Company and its Subsidiaries and
Affiliates ("Business") for his or their own account or for the account of any
other Person, or (b) become interested in any Person engaged in activities
competitive in any material respect with the Business as a partner, shareholder,
member, principal, agent, employee, trustee, consultant or in any other
relationship or capacity; PROVIDED, HOWEVER, that Executive may own, directly or
indirectly, solely as a passive investment, securities of any Person if the
Executive or any of his Affiliates, as the case may be (x) is not a Person in
Control of, or a member of a group that Controls, such Person and (y) does not,
directly or indirectly, own 5% or more of any voting class of securities of such
Person.

                  7.2 NON-SOLICITATION. During the Term and for a period of 2
1/2 years thereafter, the Executive will not, directly or indirectly, use
proprietary knowledge or information relating to the Company or its Subsidiaries
or Affiliates obtained during the course of Executive's employment with the
Company with the intention to, or which a reasonable person would construe to
(a) interfere with or disrupt any present or prospective relationship,
contractual or otherwise, between the Company or its Subsidiaries or Affiliates
and any customer, supplier, employee, consultant or other person having business
dealings with the Company or its Subsidiaries or Affiliates, or (b) employ or
solicit the employment or engagement by others of any employee or consultant of
the Company or its Subsidiaries or Affiliates who was such an employee or
consultant at the time of termination of the Executive's employment hereunder or
within one year prior thereto.

                  7.3 SCOPE. The Executive agrees that the provisions of this
Section 7 are necessary to protect the interests of the Company or its
Subsidiaries or Affiliates and are reasonable and valid in geographical and
temporal scope and in all other respects. If any court determines that the
provisions of this Section 7 or any part thereof are unenforceable because of
the duration or geographical scope of such provision, such court will have the
power to reduce the duration or scope of such provision, as the case may be,
and, in its reduced form, such provision will be enforceable.

         8. NONDISCLOSURE. Except with the prior written consent of the Company
in each instance or as may be reasonably necessary to perform the Executive's
services hereunder, the Executive shall not disclose, use, publish, or in any
other manner reveal, directly or indirectly, at any time during or after the
Term, any Confidential Information relating to the Company or any Subsidiary or
Affiliate thereof acquired by him prior to, during the course of, or incident
to, his employment hereunder. "Confidential Information" shall mean (a)
proprietary information, trade secrets and know-how of the Company and its
Affiliates in which one may obtain a legally protected interest, (b)
confidential information relating to the business, operations, systems,
networks, services,


                                       -7-

<PAGE>



pricing policies, marketing plans, product development plans and inventions and
research of the Company or its Affiliates, and (c) confidential information
relating to the financial affairs and results of operations and forecasts or
projections of the Company and its Affiliates; provided that not information
shall constitute Confidential Information if it (1) is generally known by
persons other than the Company or its Affiliates, or (2) is known by persons
other than the Company or its Affiliates by reason of the action of persons
other than the Executive or any person acting at the Executive's direction or
with the Executive's consent, or (3) is compelled to be disclosed by law or
legal process. In the event Executive is required (by oral questions,
interrogatories, requests for information or documents in legal proceedings,
subpoenas, civil investigative demand or similar process) to disclose any such
Confidential Information, the Executive shall provide the Company with prompt
written notice of such requirement so that the Company may seek a protective
order or other appropriate remedy and/or waive compliance with the provisions of
this Section. If, in the absence of such a protective order or other remedy or
receipt of a waiver by the Company, the Executive is nonetheless advised by his
legal counsel that he is legally compelled to disclose such Confidential
Information, the Executive may, without liability hereunder, disclose only that
portion of such confidential information which such counsel advises is legally
required to be disclosed.

         9. REMEDIES FOR CERTAIN BREACHES. If the Executive commits a breach, or
threatens to commit a breach, of any of the provisions of Sections 6, 7 and/or 8
hereof, the Company shall have the following rights and remedies, each of which
rights and remedies shall be independent of the others, and shall be severally
enforceable, and all of which rights and remedies shall be in addition to, and
not in lieu of, any other rights and remedies available under law or in equity
to the Company, the right and remedy to have the provisions of Sections 6, 7
and/or 8 enforced by any court of competent jurisdiction by injunction,
restraining order, specific performance or other equitable relief in favor of
the Company, it being acknowledged and agreed that any breach or threatened
breach of Sections 6, 7 and/or 8 hereof by the Executive will cause irreparable
injury to the Company and that money damages will not provide an adequate remedy
to the Company.

         10. ARBITRATION. Any dispute, controversy or claim, at any time arising
out of this or relating to this Agreement, or the breach, termination or
invalidity thereof (other than any dispute, controversy or claim pursuant to
Sections 6, 7, 8 and/or 9 hereof, which may, at the option of the Company, be
submitted to any court having jurisdiction), shall be referred to final and
binding arbitration by a panel of three arbitrators selected according to the
Commercial Arbitration Rules of the American Arbitration Association (but not
held under its auspices). In the event the arbitrator selected by the Executive
and the arbitrator selected by the Company cannot, within 30 days after the
appointment of both, agree on a third arbitrator, he or she shall be selected by
the Chief Judge of the Federal District Court of the Southern District of New
York. The place of arbitration shall be New York, NY. Any arbitral award may be
entered as a judgment in any court of competent jurisdiction.



                                       -8-

<PAGE>



         11. MISCELLANEOUS.

                  11.1 NOTICES. All notices, requests, claims, demands and other
communications hereunder shall be in writing and shall be given (and shall be
deemed to have been duly received if so given) by hand delivery, telegram, telex
or telecopy, or by mail (registered or certified mail, postage prepaid, return
receipt requested) or by any courier service, providing proof of delivery. All
communications hereunder shall be delivered to the respective parties at the
following addresses:

                  If to the Executive:     Anthony Servidio
                                           3 Hampshire Circle
                                           Bronxville, NY 10708

                  copy to:                 Cahill Gordon & Reindel
                                           80 Pine Street
                                           New York, NY  10005
                                           Telecopier No.: (212) 269-5420
                                           Attn: Jonathan Schaffzin, Esq.

                  If to the Company:       International Exchange Networks, Ltd.
                                           c/o IPC Information Systems, Inc.
                                           Wall Street Plaza
                                           88 Pine Street - 15th Floor
                                           New York, NY 10005
                                           Telecopier No.: (212) 858-7959
                                           Attn: General Counsel

                  copy to:                 Morgan Lewis & Bockius
                                           101 Park Avenue
                                           New York, NY  10178
                                           Telecopier No.: (212) 309-6273
                                           Attn: Philip H. Werner, Esq.

or to such other address as the party to whom notice is given may have
previously furnished to the other parties hereto in writing in the manner set
forth above.

                  11.2 ENTIRE AGREEMENT. Upon the Closings, this Agreement shall
constitute the entire agreement between the Executive and the Company with
respect to the Company' employment of the Executive and supersedes all prior
agreements and understandings, written or oral, with respect thereto, including,
without limitation, the Existing Agreement.

                  11.3 AMENDMENTS AND WAIVERS. Any term of this Agreement may be
amended and the observance of any term of this Agreement may be waived (either
generally or in a particular instance and either retroactively or
prospectively), only by (a) an instrument in writing and signed


                                       -9-

<PAGE>



by the party against whom such amendment or waiver is sought to be enforced, and
(b) in the case of the Company, such amendment or waiver also must be duly
authorized by an appropriate resolution of the Board.

                  11.4 SUCCESSORS AND ASSIGNS. The Company shall have the right
to assign this Agreement. The personal services of the Executive are the subject
of this Agreement and no part of his rights or obligations hereunder may be
assigned, transferred, pledged or encumbered by the Executive. This Agreement
shall inure to the benefit of, and be binding upon (a) the parties hereto, (b)
the heirs, administrators, executors and personal representatives of the
Executive and (c) the successors and assigns of the Company as provided herein.

                  11.5 GOVERNING LAW. This Agreement, including the validity
hereof and the rights and obligations of the parties hereunder, and all
amendments and supplements hereof and all waivers and consents hereunder, shall
be construed in accordance with and governed by the laws of the State of New
York without giving effect to any conflicts of law provisions or rule, that
would cause the application of the laws of any other jurisdiction.

                  11.6 SEVERABILITY. If any provisions of this Agreement as
applied to any part or to any circumstance shall be adjudged by a court to be
invalid or unenforceable, the same shall in no way affect any other provision of
this Agreement, the application of such provision in any other circumstances or
the validity or enforceability of this Agreement.

                  11.7 SURVIVAL. The rights and obligations of the Company and
Executive pursuant to Sections 6, 7, 8, 9, 10 and this Section 11 shall survive
the termination of the Executive's employment with the Company and the
expiration of the Term.

                  11.9 CAPTIONS. The headings and captions used in this
Agreement are used for convenience only and are not to be considered in
construing or interpreting this Agreement.

                  11.10 COUNTERPARTS. This Agreement may be executed in two or
more counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.


                                      -10-

<PAGE>





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

                                       EXECUTIVE:


                                        /s/ Anthony Servidio
                                       ----------------------------------
                                       Name: Anthony Servidio


                                       INTERNATIONAL EXCHANGE NETWORKS, LTD.


                                       By: /s/ Daniel Utevsky
                                          ------------------------------
                                          Name:  Daniel Utevsky
                                          Title: General Counsel/Secretary


         Solely as to Section 4.3(a) hereof, agreed to and accepted by:

                                       IPC INFORMATION SYSTEMS, INC.


                                       By: /s/ S.T. Clontz
                                          ------------------------------
                                          Name:  S.T. Clontz
                                          Title: President & CEO




<PAGE>


                                                                       EXHIBIT A
                                                                       ---------

                          IPC INFORMATION SYSTEMS, INC.
                                STOCK OPTION PLAN
                                GRANT CERTIFICATE

This Grant Certificate evidences the grant of an option pursuant to the
provisions of the Stock Option Plan (the "Plan") of IPC Information Systems,
Inc. (the "Company") to the individual whose name appears below (the "Grantee"),
covering the specific number of shares of Common Stock of the Company ("Stock")
set forth below, pursuant to the provisions of the Plan and on the following
express terms and conditions:

1. Name of Grantee:

         Anthony Servidio

2. Number of shares of Stock of the Company which are subject to this option:

         [6,495] shares [representing .1407% of outstanding stock on a fully
         diluted basis]

3. Exercise price of shares subject to this option:

         $21 per share

4. Date of grant of this option:

         [Closing Date]

5. Vesting:

         See Section 5(b) of the Plan.

6. Termination date of this option:

         See Section 5(c) of the Plan.

7. Restrictions on Shares:

         See Section 5(d) of the Plan.

The Grantee hereby acknowledges receipt of a copy of the Plan as presently in
effect. The text and all of the terms and provisions of the Plan are
incorporated herein by reference, and this option is subject to these terms and
provisions in all respects. At any time when the Grantee wishes to exercise this
option, in whole or in part, the Grantee shall submit to the Company a written
notice of exercise, specifying the exercise date and the number of shares to be
exercised. Upon exercise, the Grantee shall remit to the Company the exercise
price, plus an amount sufficient to satisfy any withholding tax obligation of
the Company that arises in connection with such exercise.

IPC INFORMATION SYSTEMS, INC.                AGREED TO AND ACCEPTED BY:



By:_____________________________             __________________________________
                                                    Grantee



IPC INFORMATION SYSTEMS TO BE ACQUIRED BY CABLE SYSTEMS HOLDING;
LEADING FINANCIAL TRADING TECHNOLOGY FIRM TO BE ACQUIRED FOR $253
MILLION

NEW YORK, DECEMBER 19, 1997 -- IPC Information Systems (NASDAQ: IPCI), a leading
provider of financial trading services worldwide, today announced that it has
signed a definitive agreement to be acquired by Cable Systems Holding, LLC and
its subsidiary, Cable Systems International, Inc. (Cable Systems). The
transaction, which is structured as a leveraged recapitalization, is valued at
$253 million including debt.

Under the terms of the agreement, which is subject to majority shareholder
approval and regulatory review, Cable Systems will purchase a minimum of 54
percent and as much as 90 percent of the outstanding shares of IPC for $21 per
share. Shareholders will have the option to receive $21 per share in cash, or to
retain a portion of their equity, not to exceed 46 percent in total, in the
recapitalized company. Total cash consideration to shareholders in the event of
a purchase of 90% of the total equity outstanding by Cable Systems would be $204
million. Deutsche Morgan Grenfell is advising IPC on the transaction.

The agreement also calls for IPC to raise an additional $157 million in high
yield debt, and up to $75 million through a revolving credit facility, with
proceeds to be used in part to pay shareholders who elect to receive cash.
Morgan Stanley Dean Witter is working with Cable Systems to arrange the debt
financing.

Richard P. Kleinknecht and Peter J. Kleinknecht, who currently serve as Chairman
and Vice-Chairman of IPC, respectively, together hold a majority of the
outstanding shares in the company. According to IPC, the two brothers have
agreed to vote their shares in favor of the transaction at the shareholders'
meeting, which is expected to take place within the first three months of 1998
concurrent with the completion of the high yield financing. Richard P.
Kleinknecht has also agreed to roll over a portion of his shareholdings so that
he will own 10 percent of IPC upon completion of the deal, the company said.

At the consummation of the merger, it is expected that Peter Woog of Cable
Systems will become Chairman of the IPC Board, and Richard P. Kleinknecht will
become Vice Chairman.

"This transaction will give IPC the resources we need to invest in our growth,
and to continue our successful international expansion program," said Richard P.
Kleinknecht, Chairman of IPC. "We became the global leader in turrets and other
financial trading systems by keeping pace with the technology demands of our
clients, who are the leading financial institutions in the world."

IPC's main offices are in New York and London, in addition to more than 18
offices world-wide. The company's core business is providing voice trading
systems to the financial services industry. Its TRADENET(R) family of turrets
are the most widely installed voice trading systems in the world. IPC's
Information Transport Systems (I.T.S.) division handles systems integration and
networking services for trading floors and is one of the leading value added
resellers of networking hardware to the financial services industry. In 1995,
IPC acquired International Exchange Networks Ltd., now



<PAGE>


named IXnet, a global virtual private network connecting more than 150
broker-dealer firms; providing both inter- and intra-firm connectivity
throughout the world.

Cable Systems Holding Limited Liability Company ("CSHLLC") is headquartered in
Phoenix, Arizona. CSHLLC has two operating subsidiaries - Cable Systems
International (CSI), a manufacturer of telecommunications products for outside
plant, customer premises, and broadband networks and LoDan Electronics, Inc., a
manufacturer of specialized cable assemblies and contract assembly services.

IPC Information Systems, Inc. (NASDAQ:IPCI) is a world leader in the delivery of
integrated multimedia communications solutions to the financial trading
industry. IPC serves customers in more than 35 countries. Its patented digital
TRADENET MX(R) turret is the most widely installed voice trading system in the
world; IPC has over 80,000 turret positions in use today. With its subsidiary,
IXnet, IPC has created the first global virtual private network, connecting
trading companies with customers and counterparts around the world. In addition,
IPC installs and maintains communications cable infrastructure, video and call
logging systems, communication integration services, and complete customer care
programs. For more information, visit IPC's Web site at WWW.IPC.COM.

This press release may include information presented which contains
forward-looking information, including statements regarding the strategic
direction of the Company. These comments constitute forward looking statements
(within the meaning of the Private Securities Litigation Reform Act of 1995),
which involve significant risks and uncertainties. Actual results may differ
materially from the information discussed in these forward looking statements.
Among the factors that could cause actual results, performance or achievement to
differ materially from those described or implied in the forward-looking
statements are general economic conditions, competition, potential countries,
the ability to secure partnership or join-venture relationships with other
entities, the ability to raise additional capital to finance the transaction and
expansion, and the risks inherent in new product and service introductions and
the entry into new geographic markets.



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