EXHIBIT 10.21

Execution Version

SECOND AMENDMENT AND CONSENT RELATED TO
AMENDED AND RESTATED CREDIT AND GUARANTY AGREEMENT

     THIS SECOND AMENDMENT AND CONSENT RELATED TO AMENDED AND RESTATED CREDIT
AND GUARANTY AGREEMENT (this “Amendment”), is made and entered into as of
November 30, 2004, by and among IPC ACQUISITION CORP., a Delaware corporation
(the “Borrower”), certain subsidiaries of the Borrower signatory hereto (the
“Guarantors”), the Lenders signatory hereto, and GENERAL ELECTRIC CAPITAL
CORPORATION, a Delaware corporation, as Administrative Agent and Collateral
Agent for the Lenders (the “Agent”).

W I T N E S S E T H:

     WHEREAS, the Borrower, the Guarantors, Goldman Sachs Credit Partners L.P.,
as Sole Lead Arranger and Syndication Agent, CIT Lending Services Corporation,
as Documentation Agent, the Lenders and the Agent are parties to that certain
Amended and Restated Credit and Guaranty Agreement, dated as of August 29, 2003
(as amended, restated, supplemented or otherwise modified from time to time, the
“Credit Agreement”; capitalized terms used herein and not otherwise defined
shall have the meanings assigned to such terms in the Credit Agreement),
pursuant to which, among other things, the Lenders have made certain financial
accommodations available to the Borrower; and

     WHEREAS, the Borrower has requested that (i) the Lenders and the Agent
consent to the acquisition of all of the issued and outstanding stock of Orbacom
Systems Inc., a New Jersey corporation (“Orbacom”), by IPC Information Systems
Holdings, Inc., a Delaware corporation (“Holdings”), pursuant to that certain
Stock Purchase Agreement, dated as of October 1, 2004 (the “Orbacom Purchase
Agreement”) by and among Orbacom, Holdings, IPC Information Systems, LLC, a
Delaware limited liability company (“IPC Information Systems”), and the
individual sellers listed on the signature pages thereto (the transactions
contemplated by the Orbacom Purchase Agreement are referred to as the “Orbacom
Acquisition”) and (ii) the Lenders and the Agent agree to amend the Credit
Agreement in certain other respects, all as more fully set forth herein and
subject to the terms and conditions hereof, and the Lenders are willing to do
so.

     NOW, THEREFORE, for good and valuable consideration, the sufficiency and
receipt of all of which are acknowledged, the Borrower, the Guarantors, the
Lenders and the Agent agree as follows:

 

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     1. Consent. The Borrower hereby requests, and subject to the terms and
conditions contained herein, the Lenders and the Agent hereby agree and consent
to the Orbacom Acquisition.

     2. Amendments.

          (a) Amendments to Section 1. The Credit Agreement is hereby amended by
inserting the following new definitions of “Holdings”, “IPC Information
Systems”, “Second Amendment”, “Second Amendment Effective Date”, “Orbacom”,
“Orbacom Acquisition” and “Orbacom Purchase Agreement” into Section 1 of the
Credit Agreement in the appropriate alphabetical order:

     ”Holdings” means IPC Information Systems Holdings, Inc., a Delaware
corporation.

     ”IPC Information Systems” means IPC Information Systems, LLC, a Delaware
limited liability company.

     ”Orbacom” means Orbacom Systems Inc., a New Jersey corporation.

     ”Orbacom Acquisition” means the purchase of all of the issued and
outstanding shares of stock of Orbacom by Holdings, pursuant to the Orbacom
Purchase Agreement.

     ”Orbacom Purchase Agreement” means that certain Stock Purchase Agreement,
dated as of October 1, 2004, by and among Orbacom, Holdings, IPC Information
Systems, and the individual sellers listed on the signature pages thereto,
together with all exhibits, schedules, amendments, consents and other documents
related thereto.

     ”Second Amendment” means the Second Amendment and Consent Related to
Amended and Restated Credit and Guaranty Agreement, dated as of November 30,
2004, by and among the Borrower, certain Subsidiaries of the Borrower signatory
thereto, the Agent and the Lenders.

     ”Second Amendment Effective Date” means the date on which the conditions
precedent set forth in Section 3 of the Second Amendment are satisfied.

          (b) Further Amendment to Section 1. The Credit Agreement is hereby
further amended by replacing the definition of “Permitted Acquisition” contained
in Section 1 of the Credit Agreement with the following definition:

"Permitted Acquisition” means (i) the Orbacom Acquisition; and (ii) any
acquisition by Company or any of its wholly-owned Guarantor Subsidiaries,
whether by purchase, merger or otherwise, of all or substantially all of the
assets

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of, all of the Capital Stock of, or a business line or unit of or division of,
any Person, provided,

     (a) immediately prior to, and after giving effect thereto, no Default or
Event of Default shall have occurred and be continuing or would result
therefrom;

     (b) all transactions in connection therewith shall be consummated, in all
material respects, in accordance with all applicable laws and in conformity with
all applicable Governmental Authorizations;

     (c) in the case of the acquisition of Capital Stock, all of the Capital
Stock except for any such Securities in the nature of directors’ qualifying
shares required pursuant to applicable law) acquired or otherwise issued by such
Person or any newly formed Subsidiary of Company in connection with such
acquisition shall be owned 100% by Company or a Guarantor Subsidiary thereof,
and Company shall have taken, or caused to be taken, as of the date such Person
becomes a Subsidiary of Company, each of the actions set forth in Sections 5.10
and/or 5.11, as applicable;

     (d) Company and its Subsidiaries shall be in compliance with the financial
covenants set forth in Section 6.8 on a pro forma basis after giving effect to
such acquisition as of the last day of the Fiscal Quarter most recently ended
and as of the last day of the current Fiscal Quarter (as projected);

     (e) Company shall have delivered to Administrative Agent (A) at least ten
(10) Business Days prior to such proposed acquisition, a Compliance Certificate
evidencing compliance with Section 6.8 as required under clause (iv) above,
together with all relevant financial information with respect to such acquired
assets, including, without limitation, the aggregate consideration for such
acquisition and any other information required to demonstrate compliance with
Section 6.8; and

     (f) any Person or assets or division as acquired in accordance herewith
shall be in the same business or lines of business in which Company and/or its
Subsidiaries are engaged as of the Effective Date or, other related lines of
business.

          (c) Amendment to Section 6.9. Section 6.9(e) of the Credit Agreement
is hereby amended by deleting clause (e) in its entirety and by replacing it
with the following:

     (e) Permitted Acquisitions, either (A) as specified on Schedule 6.9(e),
(B) the aggregate Cash consideration (together with (i) the aggregate principal
amount of any Indebtedness assumed and (ii) any Earn-Out Obligations paid by
Company and its Subsidiaries in connection therewith) for which does not exceed
$25,000,000 in the aggregate (the “Permitted Acquisition Threshold”) from the
Second Amendment Effective Date to the date of determination; provided,

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however, that the purchase price payable in connection with the Orbacom
Acquisition shall not be included in the calculation of the Permitted
Acquisition Threshold; provided, further, that on and after the date that the
Senior Secured Leverage Ratio is 0.90:1.00 or less, Company and its Subsidiaries
may also make Permitted Acquisitions for additional Cash consideration
(including the aggregate principal amount of any Indebtedness assumed) for which
does not exceed, in any Fiscal Year, an amount equal to 25% of Company’s
Consolidated Excess Cash Flow for the most recently completed Fiscal Year prior
to the date of consummation of such Permitted Acquisition or (C) to the extent
made in consideration of the issuance of Capital Stock by the Company or with
the proceeds of issuances of Capital Stock of the Company, which proceeds are
not required to be used to prepay the Loans pursuant to Section 2.12(c);

     3. Conditions to Effectiveness. Notwithstanding any other provision of this
Amendment and without affecting in any manner the rights of the Lenders and the
Agent hereunder, it is understood and agreed that this Amendment shall not
become effective, and the Borrower shall have no rights under this Amendment,
unless and until the Agent shall have received the following on or as soon as
practicable after, but not later than ten (10) days after, the date of this
Amendment:

          (a) duly executed, original signature pages to this Amendment from the
Lenders, the Borrower, the Agent, Orbacom and each Guarantor;

          (b) duly executed, original reliance letters of counsel for each of
Holdings, IPC Information Systems and Orbacom for the opinions delivered in
connection with the Orbacom Acquisition, each in form and substance satisfactory
to the Agent and its counsel, dated the Second Amendment Effective Date;

          (c) copies of duly executed payoff letters in form and substance
reasonably satisfactory to the Agent, by and between all holders of outstanding
Indebtedness with respect to the assets, properties and businesses of Orbacom on
the Second Amendment Effective Date, evidencing repayment in full of all such
Indebtedness, together with (i) authorization for the Agent to file UCC-3 or
other appropriate termination statements, releases and terminations, in form and
substance satisfactory to the Agent, releasing all liens of the holders of such
Indebtedness upon any of the assets, properties and businesses being so
acquired, and (ii) termination of all blocked account agreements, bank agency
agreements or other similar agreements or arrangements or arrangements in favor
of such holders;

          (d) evidence that, other than the payment of the Purchase Price (as
such term is defined in the Orbacom Purchase Agreement), the transactions
contemplated by the Orbacom Purchase Agreement have been consummated, together
with certified copies of the Orbacom Purchase Agreement and final and complete
copies of each of the other documents executed in connection therewith, each of
which shall be in full force and effect on the Second Amendment Effective Date
and shall be in form and substance satisfactory to the Agent;

          (e) duly executed, original opinion letters of each of (i) Fried,
Frank, Harris, Shriver & Jacobson LLP (“FFHSJ”) and (ii) Wollmuth Mayer &
Deutsch LLP (“WMD”),

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together with any local counsel opinions requested by the Agent, each in form
and substance satisfactory to the Agent and its counsel, dated the Second
Amendment Effective Date, and accompanied by a letter addressed to each of FFHSJ
and WMD from Orbacom, authorizing and directing such counsel to address its
opinion to the Agent, on behalf of Lenders;

          (f) duly executed, originals of the Counterpart Agreement from
Orbacom, pursuant to which Orbacom shall become a “Guarantor” under the Credit
Agreement and a “Grantor” under the Pledge and Security Agreement, together with
all schedules thereto;

          (g) duly executed, originals of the Pledge Supplement from Holdings,
pursuant to which Holdings shall pledge all of the issued and outstanding shares
of stock of Orbacom to the Agent for the benefit of the Lenders;

          (h) original stock certificates of Orbacom, which represent all of the
issued and outstanding shares of stock of Orbacom, together with stock powers
executed in blank;

          (i) evidence that the assets, properties and businesses of Orbacom
have insurance coverage as required by Section 5.5 of the Credit Agreement;

          (j) duly executed, originals of a certificate of the chief financial
officer or the chief executive officer of the Borrower to the effect that
Holdings will be Solvent upon the consummation of the Orbacom Acquisition;

          (k) payment of all reasonable fees and expenses of the Agent and the
Lenders owing as of the Second Amendment Effective Date, including without
limitation all fees and expenses of counsel to the Agent and receipt by the
Agent, for the benefit of the Agent, of an amendment fee in an amount equal to
$112,500, such fee to be fully earned and non-refundable on the Second Amendment
Effective Date (the “Amendment Fee”). Upon receipt of the Amendment Fee, the
Agent shall promptly distribute to each Lender signatory hereto its Pro Rata
Share thereof;

          (l) evidence satisfactory to the Agent, that the Purchase Price (as
such term is defined in the Orbacom Purchase Agreement) payable in connection
with the Orbacom Acquisition shall not exceed $18,000,000 in the aggregate;

          (m) evidence satisfactory to the Agent that the Agent (for the benefit
of itself and Lenders) has a valid and perfected First Priority security
interest in the Collateral being acquired pursuant to the Orbacom Acquisition,
including (i) such documents duly executed by Orbacom (including financing
statements under the UCC, originals of the Intellectual Property Security
Agreements, and other applicable documents under the laws of any jurisdiction
with respect to the perfection of Liens) as the Agent may request in order to
perfect its security interests in such Collateral and (ii) copies of UCC search
reports listing all effective financing statements that name Orbacom as debtor,
together with copies of such financing statements, none of which shall cover the
Collateral other than Permitted Liens;

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          (n) copies of the resolutions of the sole Member of IPC Information
Systems, approving and authorizing the execution, delivery and performance of
the Orbacom Purchase Agreement and the transactions to be consummated in
connection therewith, each certified as of the Second Amendment Effective Date
by its corporate secretary or an assistant secretary as being in full force and
effect without any modification or amendment;

          (o) copies of the resolutions of the Board of Directors of Holdings,
approving and authorizing the execution, delivery and performance of the Orbacom
Purchase Agreement and the transactions to be consummated in connection
therewith, each certified as of the Second Amendment Effective Date by its
corporate secretary or an assistant secretary as being in full force and effect
without any modification or amendment;

          (p) Orbacom’s (i) charter and all amendments thereto and (ii) good
standing certificates and certificates of qualification to conduct business in
each jurisdiction where ownership or lease of property or the conduct of its
business requires such qualification, except in jurisdictions where the failure
to be so qualified or in good standing has not had, and could not be reasonably
expected to have, a Material Adverse Effect, each dated a recent date prior to
the Second Amendment Effective Date and certified by the applicable Secretary of
State or other authorized Governmental Authority;

          (q) Orbacom’s (i) bylaws, together with all amendments thereto and
(ii) resolutions of its Board of Directors, approving and authorizing the
execution, delivery and performance of the Credit Documents to which it is a
party and the transactions to be consummated in connection therewith, each
certified as of the Second Amendment Effective Date by its corporate secretary
or an assistant secretary as being in full force and effect without any
modification or amendment;

          (r) signature and incumbency certificates of the officers of Orbacom
executing any of the Credit Documents, certified as of the Second Amendment
Effective Date by its corporate secretary or an assistant secretary as being
true, accurate, correct and complete;

          (s) duly executed, originals of a certificate of an Authorized Officer
of the Borrower, dated the Second Amendment Effective Date, stating that, (i)
since September 30, 2003, no event or condition has occurred or is existing
which could reasonably be expected to have a Material Adverse Effect; and (ii)
upon the consummation of the transactions contemplated by the Second Amendment,
no Default or Event of Default has occurred or would arise therefrom;

          (t) duly executed, original of an Assignment of Representations,
Warranties, Covenants, Indemnities and Rights in respect of the rights of IPC
Information Systems and Holdings under the Orbacom Purchase Agreement, which
assignment shall be expressly permitted under the Orbacom Purchase Agreement or
shall have been consented to by the Sellers (as such term is defined in the
Orbacom Purchase Agreement) in writing;

          (u) either (i) a duly executed Landlord Personal Property Collateral
Access Agreement for 1704 Taylors Lane, Units 1-8, Cinnaminson, New Jersey
substantially in the form

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attached as Exhibit K to the Credit Agreement or (ii) a certificate duly
executed by an Authorized Officer of Orbacom certifying that Orbacom used
commercially reasonable efforts to obtain such Landlord Personal Property
Collateral Access Agreement but was unable to do so;

          (v) evidence satisfactory to the Agent that the New Jersey Industrial
Site Recovery Act (“ISRA”) clearance from the New Jersey Department of
Environmental Protection has been obtained in connection with the Orbacom
Acquisition; and

          (w) such other certificates, documents and agreements respecting any
Credit Party as the Agent may reasonably request.

     4. Representations and Warranties. To induce the Lenders and the Agent to
enter into this Amendment, the Borrower, Orbacom and each Guarantor
(collectively, the “Credit Parties”) hereby represent and warrant to the Lenders
and the Agent that:

          (a) The execution, delivery and performance by each Credit Party of
this Amendment does not and will not (i) violate any provision of any law or any
governmental rule or regulation applicable to such Credit Party, any of the
Organizational Documents of such Credit Party, or any order, judgment or decree
of any court or other agency of government binding on such Credit Party except
to the extent such violation could not be reasonably expected to have a Material
Adverse Effect; (ii) conflict with, result in a breach of or constitute (with
due notice or lapse of time or both) a default under any Contractual Obligation
of such Credit Party except to the extent such conflict, breach or default could
not reasonably be expected to have a Material Adverse Effect; (iii) result in or
require the creation or imposition of any Lien upon any of the properties or
assets of such Credit Party (other than any Liens created under any of the
Credit Documents in favor of the Agent, on behalf of Secured Parties); or
(iv) require any approval of stockholders, members or partners or any approval
or consent of any Person under any Contractual Obligation of such Credit Party,
except for such approvals or consents which will be obtained on or before the
Second Amendment Effective Date and disclosed in writing to the Agent and the
Lenders and except for any such approvals or consents the failure of which to
obtain will not have a Material Adverse Effect;

          (b) This Amendment has been duly executed and delivered for the
benefit of or on behalf of each Credit Party and constitutes a legal, valid and
binding obligation of each Credit Party, enforceable against such Credit Party
in accordance with its terms except as the enforceability hereof may be limited
by bankruptcy, insolvency, reorganization, moratorium and other similar laws
relating to or limiting creditors’ rights generally or by equitable principles
relating to enforceability;

          (c) After giving effect to this Amendment, the representations and
warranties contained in the Credit Agreement and the other Credit Documents are
true and correct in all material respects (except that, to the extent any such
representation or warranty is qualified by materiality or Material Adverse
Effect, such representation or warranty shall be true and correct in all
respects), except to the extent such representations and warranties specifically
relate to an earlier date, in which case such representations and warranties
shall have been true and correct in all material respects (except that, to the
extent any such representation or warranty is qualified by

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materiality or Material Adverse Effect, such representation or warranty shall be
true and correct in all respects) on and as of such earlier date, and no Default
or Event of Default has occurred and is continuing as of the date hereof;

          (d) With the exception of ISRA clearance from the New Jersey
Department of Environmental Protection, the execution, delivery and performance
of the Orbacom Purchase Agreement and this Amendment and the consummation of the
Orbacom Acquisition do not and will not require any registration with, consent
or approval of, or notice to, or other action to, with or by, any Governmental
Authority except for filings and recordings with respect to the Collateral to be
made or otherwise delivered to the Agent for filing and/or recordation.

          (e) As of the Second Amendment Effective Date, other than with respect
to items covered by Holdings’ indemnification rights under the Obracom Purchase
Agreement, Orbacom shall have no known contingent liability or liability for
taxes, long-term leases or unusual or forward or long-term commitment which, in
any case, is material in relation to its businesses, operations, properties,
assets, condition (financial or otherwise) or prospects which has not been
disclosed to the Agent and the Lenders.

     5. Reaffirmations and Acknowledgments.

          (a) Reaffirmation of Guaranty. Each Guarantor consents to the
execution and delivery by the Borrower of this Amendment, and jointly and
severally ratifies and confirms the terms of the Credit Agreement with respect
to the indebtedness now or hereafter outstanding thereunder as amended hereby
and all promissory notes issued thereunder. Each Guarantor acknowledges that,
notwithstanding anything to the contrary contained herein or in any other
document evidencing any indebtedness of the Borrower to the Lenders or any other
obligation of the Borrower, or any actions now or hereafter taken by the Lenders
with respect to any obligation of the Borrower, the Credit Agreement (i) is and
shall continue to be a primary obligation of such Guarantors, (ii) is and shall
continue to be an absolute, unconditional, joint and several, continuing and
irrevocable guaranty of payment, and (iii) is and shall continue to be in full
force and effect in accordance with its terms. Nothing contained herein to the
contrary shall release, discharge, modify, change or affect the original
liability of such Guarantors under the Credit Agreement.

          (b) Acknowledgment of Perfection of Security Interest. Each Credit
Party hereby acknowledges that, as of the date hereof, the security interests
and liens granted to the Agent and the Lenders under the Credit Agreement and
the other Credit Documents are in full force and effect, are properly perfected
and are enforceable in accordance with the terms of the Credit Agreement and the
other Credit Documents.

          (c) Acknowledgment of Section 3.3(a) of Pledge and Security Agreement.
To the extent that Orbacom has any Receivable (as defined in the Pledge and
Security Agreement) subject to the terms of Section 3.3(a) of the Pledge and
Security Agreement, Orbacom hereby acknowledges and agrees to comply with the
terms therewith in all respects.

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     6. Effect of Amendment. Except as set forth expressly herein, all terms of
the Credit Agreement, as amended hereby, and the other Credit Documents shall be
and remain in full force and effect and shall constitute the legal, valid,
binding and enforceable obligations of the Credit Parties except as the
enforceability hereof may be limited by bankruptcy, insolvency, reorganization,
moratorium and other similar laws relating to or limiting creditors’ rights
generally or by equitable principles relating to enforceability. The execution,
delivery and effectiveness of this Amendment shall not, except as expressly
provided herein, operate as a waiver of any right, power or remedy of the
Lenders under the Credit Agreement, nor constitute a waiver of any provision of
the Credit Agreement. This Amendment shall constitute a Credit Document for all
purposes of the Credit Agreement.

     7. Governing Law. This Amendment shall be governed by, and construed in
accordance with, the internal laws of the State of New York and all applicable
federal laws of the United States of America.

     8. No Novation. This Amendment is not intended by the parties to be, and
shall not be construed to be, a novation of the Credit Agreement or an accord
and satisfaction in regard thereto.

     9. Costs and Expenses. The Borrower agrees to pay on demand all reasonable
costs and expenses of the Agent in connection with the preparation, execution
and delivery of this Amendment, including, without limitation, the reasonable
fees and out-of-pocket expenses of outside counsel for the Agent with respect
thereto.

     10. Counterparts. This Amendment may be executed by one or more of the
parties hereto in any number of separate counterparts, each of which shall be
deemed an original and all of which, taken together, shall be deemed to
constitute one and the same instrument. Delivery of an executed counterpart of
this Amendment by facsimile transmission or by electronic mail in pdf form shall
be as effective as delivery of a manually executed counterpart hereof.

     11. Binding Nature. This Amendment shall be binding upon and inure to the
benefit of the parties hereto, their respective successors,
successors-in-titles, and assigns.

     12. Entire Understanding. This Amendment and the other Credit Documents set
forth the entire understanding of the parties with respect to the matters set
forth herein, and shall supersede any prior negotiations or agreements, whether
written or oral, with respect thereto.

     13. Release. Each Credit Party hereby releases, acquits, and forever
discharges the Agent and each of the Lenders, and each and every past and
present subsidiary, affiliate, stockholder, officer, director, agent, servant,
employee, representative, and attorney of the Agent and the Lenders, from any
and all claims, causes of action, suits, debts, liens, obligations, liabilities,
demands, losses, costs and expenses (including attorneys’ fees) of any kind,
character, or nature whatsoever, known or unknown, fixed or contingent, which
such Credit Party may have or claim to have now or which may hereafter arise out
of or connected with any act of commission or omission of the Agent or the
Lenders with respect to the Credit Agreement or any other of the Credit
Documents existing or occurring on or prior to the date of this Amendment,

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provided that this paragraph shall not release the Agent or the Lenders in
respect of any of the foregoing acts of commission or omission to the extent
existing or occurring subsequent to the date of this Amendment. The provisions
of this paragraph shall be binding upon each Credit Party and shall inure to the
benefit of the Agent, the Lenders, and their respective heirs, executors,
administrators, successors and assigns.

[Signature Pages To Follow]

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     IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
duly executed by their respective authorized officers as of the day and year
first above written.

            BORROWER:

IPC ACQUISITION CORP.
      By:   /s/ Timothy Whelan         Name:   Timothy Whelan        Title:  
Chief Financial Officer     

            GUARANTORS:

IPC INFORMATION SYSTEMS, LLC
      By:   /s/ Timothy Whelan         Name:   Timothy Whelan        Title:  
Chief Financial Officer     

            IPC FUNDING CORP.
      By:   /s/ Timothy Whelan         Name:   Timothy Whelan        Title:  
Chief Financial Officer     

            V BAND CORPORATION
      By:   /s/ Timothy Whelan         Name:   Timothy Whelan        Title:  
Chief Financial Officer     

            IPC INFORMATION SYSTEMS FAR EAST INC.
      By:   /s/ Timothy Whelan         Name:   Timothy Whelan        Title:  
Chief Financial Officer   

 

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            IPC INFORMATION SYSTEMS HOLDINGS, INC.
      By:   /s/ Timothy Whelan         Name:   Timothy Whelan        Title:  
Chief Financial Officer     

            IPC INFORMATION SYSTEMS HOLDINGS USA, INC.
      By:   /s/ Timothy Whelan         Name:   Timothy Whelan        Title:  
Chief Financial Officer     

            IPC INFORMATION SYSTEMS SERVICES, INC.
      By:   /s/ Timothy Whelan         Name:   Timothy Whelan        Title:  
Chief Financial Officer     

            IPC INFORMATION SYSTEMS HOLDINGS, L.L.C.
      By:   /s/ Timothy Whelan         Name:   Timothy Whelan        Title:  
Chief Financial Officer     

            IPC INFORMATION SYSTEMS HOLDINGS USA, L.L.C.
      By:   /s/ Timothy Whelan         Name:   Timothy Whelan        Title:  
Chief Financial Officer     

            IPC INFORMATION SYSTEMS SERVICES, L.L.C.
      By:   /s/ Timothy Whelan         Name:   Timothy Whelan        Title:  
Chief Financial Officer   

 

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            GAINS ACQUISITION CORP.
      By:   /s/ Timothy Whelan         Name:   Timothy Whelan        Title:  
Chief Financial Officer     

            IPC NETWORK SERVICES, INC.
      By:   /s/ Timothy Whelan         Name:   Timothy Whelan        Title:  
Chief Financial Officer     

            ORBACOM SYSTEMS INC.
      By:   /s/ Timothy Whelan         Name:   Timothy Whelan        Title:  
Vice President     

[Signatures continue on following page]

 

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            AGENT AND LENDERS:

GENERAL ELECTRIC CAPITAL
CORPORATION,
as Administrative Agent, Collateral Agent
and Lender
      By:   /s/ Raymond Shu         Duly Authorized Signatory             

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            BLACK DIAMOND,
as a Lender
      By:   /s/ David Dyer         Name:   David Dyer        Title:   Director 
   

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            CIT LENDING SERVICES CORPORATION,
as a Lender
      By:   /s/ Douglas E. Maher         Name:   Douglas E. Maher       
Title:   Vice President     

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            CREDIT SUISSE ASSET MANAGEMENT, LLC,
as a Lender
      By:   /s/ Linda R. Karn         Name:   Linda R. Karn        Title:  
Authorized Signatory     

[Signatures continue on following page]

 

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            T. ROWE PRICE,
as a Lender
      By:   /s/ Darrell Braman         Name:   Darrell Braman        Title:  
Vice President