SAVVIS COMMUNICATIONS CORP
10-Q, EX-10.6, 2000-11-14
BUSINESS SERVICES, NEC
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                                                                    EXHIBIT 10.6

                              AMENDED AND RESTATED
                               GUARANTY AGREEMENT

         This AMENDED AND RESTATED GUARANTY AGREEMENT (this  "Guaranty"),  dated
effective as of September 5, 2000, is executed and  delivered by GLOBAL  NETWORK
ASSETS, LLC, a Delaware limited liability company ("Guarantor"), to and in favor
of NORTEL  NETWORKS  INC.,  as  administrative  agent for  itself  and the other
Lenders (as such term is hereinafter  defined) (in such capacity,  together with
its successors and assigns in such capacity, "Administrative Agent").

                              W I T N E S S E T H:
                              - - - - - - - - - -

         A. Subject to the terms of that certain  Credit  Agreement  dated as of
June 30, 2000 among Savvis  Communications  Corporation,  a Missouri corporation
("Borrower"),   Guarantor,  the  lenders  named  therein  (together  with  their
successors  and assigns,  "Lenders")  and  Administrative  Agent (the  "Original
Credit Agreement"),  the Lenders extended certain credit facilities to Borrower.
As a condition to the effectiveness of the Original Credit Agreement,  Guarantor
executed and delivered that certain Guaranty Agreement dated as of June 30, 2000
(the "Original  Guaranty")  pursuant to which Guarantor  guaranteed  payment and
performance of the "Obligations," as such term is defined in the Original Credit
Agreement.

         B.  Borrower,  Guarantor,  the  Lenders and  Administrative  Agent are,
concurrently  herewith,  entering into that certain  Amended and Restated Credit
Agreement  dated as of September  5, 2000 (as the same may be amended,  renewed,
extended,  restated, replaced,  substituted,  supplemented or otherwise modified
from time to time, the "Credit Agreement") and, in connection  therewith,  inter
alia, Borrower is, concurrently herewith,  executing and delivering that certain
Amended and Restated  Note dated  September 5, 2000,  in the original  principal
amount  of  $235,000,000  payable  to the order of Nortel  Networks  Inc.  (such
promissory note, as it may be amended, renewed,  extended,  restated,  replaced,
substituted,  supplemented  or otherwise  modified from time to time, the "Note"
and,  to the  extent  there is more than one  promissory  note  subsequent  to a
partial assignment of the Loans, the "Notes").

         C. Guarantor has directly and  indirectly  benefitted and will directly
and  indirectly  benefit  from the loans  evidenced  and  governed by the Credit
Agreement,  the Notes and the other Loan  Documents  and the other  transactions
evidenced by and contemplated in the Loan Documents.

         D.   Execution  and  delivery  of  this  Guaranty  is  a  condition  to
Administrative  Agent and Lenders  entering  into the Credit  Agreement  and the
making of Loans pursuant thereto.

         NOW, THEREFORE,  for good and valuable  consideration,  the receipt and
adequacy of which are hereby acknowledged, Guarantor hereby agrees as follows:

<PAGE>

         1.  Definitions.   Unless  otherwise  defined  in  this  Guaranty,  all
capitalized terms used in this Guaranty shall have the meanings ascribed to such
terms in the Credit Agreement.

         2. Guaranty of  Indebtedness,  Liabilities and  Obligations.  Guarantor
hereby absolutely,  unconditionally  and irrevocably  guarantees (a) payment and
performance to Administrative Agent and Lenders, as and when the same become due
or performable  strictly in accordance with the terms and provisions of the Loan
Documents,  whether at stated maturity, by acceleration or otherwise, of any and
all  Obligations  (as such  term is  defined  in the  Credit  Agreement),  which
Obligations include,  without limitation,  (i) any and all interest,  penalties,
fees and  expenses  (specifically  including,  but not  limited  to,  reasonable
attorneys'  fees and expenses)  which  Borrower may now or at any time hereafter
owe to  Administrative  Agent  or any  Lender  (whether  or not  such  interest,
penalties,  fees and expenses were  originally  contracted  with  Administrative
Agent or any Lender or with another or others and whether or not such  interest,
penalties,  fees and expenses are enforceable  against Borrower) pursuant to the
Credit  Agreement,  any Note or any other Loan  Document plus (ii) the principal
amount of any and all indebtedness,  liabilities and other obligations,  whether
primary, absolute,  secondary, direct, indirect, fixed, contingent,  liquidated,
unliquidated,  secured or  unsecured,  matured or unmatured,  joint,  several or
joint and several, due or to become due and whether arising by agreement,  note,
discount,  acceptance,  overdraft or otherwise, which Borrower may now or at any
time hereafter owe to  Administrative  Agent or any Lender  (whether or not such
indebtedness,  liabilities  and  obligations  were  originally  contracted  with
Administrative  Agent or any Lender or with another or others and whether or not
such indebtedness,  liabilities or obligations are enforceable against Borrower)
pursuant to the Credit  Agreement,  any Note or any other Loan  Document and (b)
the  faithful,  prompt  and  complete  compliance  by  Borrower  with all terms,
conditions,  covenants, agreements and undertakings of Borrower under the Credit
Agreement,  any  Note  or any  other  Loan  Document  (the  Obligations  and the
interest, penalties, fees, expenses, indebtedness,  liabilities and obligations,
etc.  referred  to in  clauses  (a)  and  (b)  preceding  as to  which  payment,
performance  and  compliance  are  guaranteed  pursuant  to  this  Guaranty  are
hereinafter individually and collectively called the "Guaranteed Obligations").

         Notwithstanding  that  Borrower  may  not be  liable  or  obligated  to
Administrative  Agent or any Lender for interest  and/or  reasonable  attorneys'
fees and expenses on, or in connection with, the Guaranteed Obligations from and
after the Petition Date (as  hereinafter  defined) as a result of the provisions
of the federal  bankruptcy  laws or otherwise,  the Guaranteed  Obligations  for
which  Guarantor shall be liable and obligated under this Guaranty shall include
(to the extent permitted by law or a court of competent  jurisdiction)  interest
accruing on the  Guaranteed  Obligations at the highest rate provided for in the
Credit  Agreement from and after the date on which Borrower files for protection
under  the  federal  bankruptcy  laws or from  and  after  the  date on which an
involuntary  proceeding is filed against  Borrower under the federal  bankruptcy
laws (herein collectively referred to as the "Petition Date") and all attorneys'
fees and expenses incurred by Administrative  Agent or any Lender from and after
the Petition Date in connection with the Guaranteed Obligations.

         3.  Continuing  Guaranty of Payment.  This  Guaranty is and shall be an
absolute, unconditional, irrevocable and continuing guaranty of payment, and not
merely  of  collection,  and from  time to time or at any  time  the  Guaranteed
Obligations may be increased, reduced or paid in full


                                        2
<PAGE>

without  affecting  the  liability or  obligation  of Guarantor  with respect to
indebtedness, liabilities and obligations of Borrower to Administrative Agent or
any Lender  thereafter  incurred.  Guarantor  further  agrees that this Guaranty
shall  continue to be effective or be reinstated  (if a release or discharge has
occurred),  as the case may be, if at any time any payment (or any part thereof)
to Administrative  Agent or any Lender in respect of the Guaranteed  Obligations
is rescinded or must otherwise be restored by Administrative Agent or any Lender
pursuant to any bankruptcy,  insolvency,  reorganization,  receivership or other
debtor relief  granted to Borrower or its  successors  or assigns.  In the event
that  Administrative  Agent or any Lender  must  rescind or restore  any payment
received by Administrative Agent or any Lender, respectively, in satisfaction of
the Guaranteed Obligations,  as set forth herein, any prior release or discharge
from the terms of this Guaranty  given to Guarantor by  Administrative  Agent or
such Lender,  respectively,  shall be without  effect,  and this Guaranty  shall
remain in full force and effect.  It is the intention of  Administrative  Agent,
Lenders and Guarantor that  Guarantor's  liabilities and  obligations  hereunder
shall not be discharged  except by the full and complete payment and performance
of the  Guaranteed  Obligations  and then only to the extent of such payment and
performance.  This  Guaranty  is  independent  of, and in  addition  and without
modification  to and does not impair or in any way  affect  any other  guaranty,
endorsement or other agreement executed in favor of Administrative  Agent or any
Lender, and this Guaranty and Guarantor's liabilities and obligations under this
Guaranty shall not be impaired or otherwise affected by the execution,  delivery
or  performance  by  Guarantor  or  any  other  Person  of any  other  guaranty,
endorsement or other agreement.

         4. Absolute  Guaranty.  Guarantor's  liabilities and obligations  under
this Guaranty shall be absolute and unconditional  irrespective of, shall not be
released,  impaired, limited, reduced, conditioned upon or otherwise affected by
and shall  continue in full force and effect  notwithstanding  the occurrence of
any event (other than an event  consisting  of payment and  performance  of such
liabilities  and  obligations  as provided in Paragraph 3 hereof) at any time or
from  time  to  time,  including,  without  limitation,  any  one or more of the
following events specified in clauses (a) through (n) of this Paragraph 4 below,
and neither  Administrative  Agent nor any Lender shall be obligated or required
to take or to refrain  from taking any of such  actions or  inactions  specified
below and shall  not have any  liability,  obligation  or duty  whatsoever  with
respect  to such  actions  or  inactions,  it being  acknowledged  and agreed by
Guarantor  that all of such  liabilities,  obligations  and  duties  (if any) of
Administrative  Agent  or any  Lender  otherwise  existing  and all  rights  and
remedies (if any) of Guarantor with respect thereto  (whether such  liabilities,
obligations,  duties,  rights or remedies  exist by virtue of agreement,  common
law,  equity,  statute or otherwise),  and each and every defense  which,  under
principles of guaranty or suretyship law, would otherwise  operate to eliminate,
impair,  condition or restrict the  liabilities and obligations of Guarantor for
the Guaranteed Obligations, are hereby expressly waived by Guarantor:

                  (a) the taking or accepting of any security or other  guaranty
         for  any  or all of the  Guaranteed  Obligations,  whether  heretofore,
         concurrently herewith or hereafter;

                  (b) any  failure to create or perfect  or  properly  create or
         perfect any lien, security interest or assignment intended as security,
         or any release,  surrender,  exchange,  substitution,  subordination or
         loss of any  security or guaranty  at any time  existing in  connection
         with any


                                        3
<PAGE>

         or all of the Guaranteed  Obligations for any reason; or any suretyship
         defenses, including, without limitation, any impairment of collateral;

                  (c) any partial or full release of the liability or obligation
         of Guarantor  under any other  guaranty  whether or not similar to this
         Guaranty;

                  (d) the entering into, delivery of, modification of, amendment
         to or waiver of compliance with the Credit  Agreement,  any Note or any
         other  Loan  Document,   or  any  agreement,   document  or  instrument
         evidencing,  securing  or  otherwise  affecting  all  or  part  of  the
         Guaranteed  Obligations,  without the  notification  of Guarantor,  the
         right  of  such  notification  being  hereby   specifically  waived  by
         Guarantor;

                  (e)  the  bankruptcy,  insolvency,  arrangement,   adjustment,
         composition,  liquidation, disability, dissolution or lack of authority
         (whether  corporate,  partnership  or trust or  relating  to any  other
         entity or Person) of  Borrower,  Guarantor  or any other  Person at any
         time  liable  or  obligated  for  the  payment  of  any  or  all of the
         Guaranteed Obligations, whether now existing or hereafter arising;

                  (f) any increase,  reduction,  renewal, extension,  amendment,
         modification,  repayment, refunding and/or rearrangement of the payment
         or any  other  terms  or  provisions  of  any or all of the  Guaranteed
         Obligations  at any time and from time to time,  whether on one or more
         occasions, either with or without notice to or consent of Guarantor, or
         any  adjustment,  indulgence,  forbearance or compromise  that might be
         granted or given by  Administrative  Agent or any Lender to Borrower or
         Guarantor;

                  (g) any  neglect,  delay,  omission,  failure  or  refusal  of
         Administrative  Agent or any  Lender (i) to  exercise  or  properly  or
         diligently  exercise  any right or remedy with respect to any or all of
         the Guaranteed Obligations or the collection thereof or any collateral,
         security or guaranty therefor,  whether under the Credit Agreement, any
         Note or any  other  Loan  Document  or  otherwise,  including,  without
         limitation,  to ensure  compliance  with any term or  provision  of the
         Credit Agreement or any other Loan Document,  (ii) to take or prosecute
         or  properly  or  diligently  take  or  prosecute  any  action  for the
         collection  of  any  or  all  of  the  Guaranteed  Obligations  against
         Borrower,  Guarantor  or  any  other  guarantor  of  any  or all of the
         Guaranteed  Obligations and/or any other Person,  (iii) to foreclose or
         prosecute or properly or  diligently  foreclose or prosecute any action
         in connection with any agreement, document or instrument or arrangement
         evidencing,  securing  or  otherwise  affecting  all or any part of the
         Guaranteed Obligations,  including,  without limitation, any failure to
         conduct a commercially reasonable foreclosure sale, or (iv) to mitigate
         damages  or take any other  action to reduce,  collect  or enforce  the
         Guaranteed Obligations;

                  (h) any failure of Administrative  Agent or any Lender to give
         notice to  Borrower  and/or  Guarantor  of, or obtain  the  consent  of
         Borrower and/or Guarantor with respect to, (i) the incurrence of any of
         the  Guaranteed  Obligations,  (ii) the  occurrence of any "Default" or
         "Event of Default" as such terms are defined in the Credit Agreement or
         any of the other Loan  Document,  (iii) demand,  presentment,  protest,
         nonpayment, intention to accelerate,


                                        4
<PAGE>

         acceleration,  lack of diligence or delay in  collection  of all or any
         part of the Guaranteed  Obligations or any other matter, or the absence
         thereof,  (iv) any renewal,  extension or assignment of the  Guaranteed
         Obligations or any part thereof, (vi) the disposition or release of all
         or any part of any security for the Guaranteed  Obligations (whether or
         not such  disposition  is  commercially  reasonable)  or (vi) any other
         action taken or refrained from being taken by  Administrative  Agent or
         any Lender  against  Borrower,  it being  agreed that (except as may be
         expressly provided in the other Loan Documents) neither  Administrative
         Agent nor any Lender  shall be required to give  Borrower or  Guarantor
         any notice of any kind or to obtain  Borrower's or Guarantor's  consent
         under any  circumstances  whatsoever  with respect to or in  connection
         with the Guaranteed Obligations;

                  (i) the  unenforceability,  illegality or  uncollectibility of
         all or any  part of the  Guaranteed  Obligations  against  Borrower  by
         reason of (i) failure of consideration,  (ii) breach of warranty, (iii)
         fraud,  (iv)  the fact  that  the  interest  contracted  for,  charged,
         collected or received in respect of the Guaranteed  Obligations exceeds
         the amount  permitted by law,  (v) the act of creating  the  Guaranteed
         Obligations  or any part  thereof is ultra  vires,  (vi) the  officers,
         directors,   partners,   trustees  or   representatives   creating  the
         Guaranteed  Obligations  acted in excess of their  authority  or lacked
         legal capacity,  (vii) the Credit Agreement, any Note or any other Loan
         Document  evidencing  the  Guaranteed  Obligations  has been  forged or
         otherwise  is  irregular  or  is  not  genuine  or  authentic,   (viii)
         expiration of the  applicable  statute of limitations of the Guaranteed
         Obligations,  (ix)  failure to comply with the  statute of frauds,  (x)
         lender liability, or (xi) accord and satisfaction;

                  (j) any  payment by Borrower  to  Administrative  Agent or any
         Lender is held to  constitute a  preferential  transfer or a fraudulent
         conveyance  or  transfer  under any  applicable  law, or for any reason
         Administrative  Agent or any Lender is required to refund such  payment
         or pay such amount to Borrower or any other Person;

                  (k) any merger,  reorganization,  consolidation or dissolution
         of Borrower, any sale, lease or transfer of any or all of the assets of
         Borrower,  or any  change  in name,  business,  location,  composition,
         structure  or any  change  in the  shareholders,  partners  or  members
         (whether  by  accession,  secession,  death,  dissolution,  transfer of
         assets or otherwise) of Borrower;

                  (l) any  failure  of  Administrative  Agent or any  Lender  to
         notify  Guarantor  of (i) the  acceptance  of this  Guaranty,  (ii) the
         making of Loans by any Lender in reliance on this  Guaranty,  (iii) the
         failure  of   Borrower   to  make  any   payment  due  by  Borrower  to
         Administrative  Agent or any Lender, or (iv) any information  regarding
         the financial condition or prospects of Borrower;

                  (m) any full or partial  release of the liability of Borrower,
         any guarantor of all or any part of the  Guaranteed  Obligations or any
         other  Person  for all or any part of the  Guaranteed  Obligations,  it
         being acknowledged and agreed by Guarantor that it may be


                                        5
<PAGE>

         required to pay the Guaranteed  Obligations in full without  assistance
         or support,  whether from  Borrower,  any other  guarantor or any other
         Person; or

                  (n) any other action taken or omitted to be taken with respect
         to any of the Credit  Agreement,  any Note or any other Loan  Document,
         the Guaranteed  Obligations  or the security and  collateral  therefor,
         whether  or  not  such  action  or  omission  prejudices  Guarantor  or
         increases the likelihood  that Guarantor will be required to pay all or
         any part of the Guaranteed Obligations pursuant to the terms hereof.

Without limiting the foregoing or Guarantor's  liability under this Guaranty, to
the extent that Administrative  Agent and Lenders (or any of them) have advanced
funds or  extended  credit to Borrower  and do not receive  payments or benefits
thereon in the amounts and at the times required or provided by or in connection
with the Credit  Agreement,  any Notes or any other Loan Document,  Guarantor is
absolutely  liable to make such  payments and to confer such benefits on Lenders
on a timely basis.

         5.  Representations  and Warranties.  In connection with this Guaranty,
Guarantor  hereby  represents and warrants to  Administrative  Agent and Lenders
that:

                  (a)  Guarantor is a  wholly-owned  Subsidiary  of Borrower and
         Guarantor has received and will receive a direct and indirect  material
         benefit  from the  transactions  evidenced by and  contemplated  in the
         Credit Agreement, the Notes and the other Loan Documents; this Guaranty
         is given  by  Guarantor  in  furtherance  of the  direct  and  indirect
         business  interests  and  corporate  purposes  of  Guarantor,   and  is
         necessary to the conduct, promotion and attainment of the businesses of
         Borrower and Guarantor; and the value of the consideration received and
         to be received by Guarantor  is believed by Guarantor to be  reasonably
         worth at least as much as the  liability  and  obligation  of Guarantor
         hereunder;

                  (b)  The  execution  and  delivery  of this  Guaranty  and the
         performance of and compliance with the terms hereof will not constitute
         a default (or an event which with notice or lapse of time or both would
         constitute a default)  under,  or result in the breach of, any material
         contract,  agreement  or  instrument  to which  Guarantor is a party or
         which may be applicable to Guarantor or any of its assets;

                  (c) This  Guaranty,  when executed and delivered by Guarantor,
         will  constitute the legal,  valid and binding  obligation of Guarantor
         enforceable  in  accordance  with  its  terms,  except  as  limited  by
         bankruptcy, insolvency or other laws of general application relating to
         the enforcement of creditors' rights and general principles of equity;

                  (d) As of the date of this  Guaranty,  and after giving effect
         to  this  Guaranty  and the  contingent  obligation  evidenced  by this
         Guaranty,  Guarantor  is not,  on either an  unconsolidated  basis or a
         consolidated basis with Holdings' Consolidated Subsidiaries (including,
         without  limitation,  Borrower),  insolvent,  as  such  term is used or
         defined in any applicable bankruptcy, fraudulent conveyance, fraudulent
         transfer or similar law, and  Guarantor has and will have assets which,
         fairly valued,  exceed its  indebtedness,  liabilities


                                       6
<PAGE>

         and  obligations;  Guarantor is not  executing  this  Guaranty with any
         intention to hinder, delay or defraud any present or future creditor or
         creditors  of  Guarantor;  Guarantor  is not engaged in any business or
         transaction  (including,  without  limitation,  the  execution  of this
         Guaranty) which will leave Guarantor with unreasonably small capital or
         assets  which are  unreasonably  small in relation  to the  business or
         transactions engaged in by Guarantor,  and Guarantor does not intend to
         engage in any such business or  transaction;  Guarantor does not intend
         to incur, nor does Guarantor  believe that it will incur,  debts beyond
         Guarantor's ability to repay such debts as they mature;

                  (e) All acts  and  conditions  required  to be  performed  and
         satisfied  prior to the creation and issuance of this Guaranty,  and to
         constitute this Guaranty as the legal,  valid and binding obligation of
         Guarantor  in  accordance  with its  terms,  have  been  performed  and
         satisfied in due and strict compliance with all applicable laws;

                  (f) Guarantor is familiar with, and has independently received
         books and records regarding, the financial condition of Borrower and is
         familiar with the value of any and all  collateral (if any) intended to
         secure the Guaranteed Obligations; however, Guarantor is not relying on
         such  financial  condition  or  any  such  collateral  (if  any)  as an
         inducement to enter into this Guaranty; Guarantor has adequate means to
         obtain from Borrower,  on a continuing basis, the information  referred
         to in this clause (f) and is not relying on Administrative Agent or any
         Lender to provide any such information at any time;

                  (g) Guarantor has not been induced to enter into this Guaranty
         on the basis of a  contemplation,  belief,  understanding  or agreement
         that  any  Person  other  than  Guarantor  will  be  liable  to pay the
         Guaranteed Obligations;

                  (h) Except for the execution of the Credit Agreement,  neither
         Administrative  Agent,  any  Lender  nor any other  Person has made any
         representation,  warranty  or  statement  to, or  promise,  covenant or
         agreement with,  Guarantor in order to induce Guarantor to execute this
         Guaranty; and

                  (i) All representations and warranties in the Credit Agreement
         relating to the  Guarantor  are true and correct in all  respects as of
         the date hereof,  except to the extent made only as of a specific prior
         date, and on each date the  representations  and warranties  thereunder
         are restated  pursuant to any of the Loan Documents with the same force
         and effect as if such  representations  and warranties had been made on
         and as of such date, all of which are incorporated herein by reference.

         6.  Default.  Upon the  occurrence  of an Event of  Default,  Guarantor
shall, on demand by Administrative  Agent and without further notice of dishonor
and  without  notice  of any kind  (including,  without  limitation,  notice  of
acceptance by  Administrative  Agent or any Lender of this Guaranty) having been
given to  Borrower,  Guarantor  or any other  Person  previous  to such  demand,
promptly  (i.e.,  not later than 1:00 p.m., New York, New York time, on the date
of such  demand  or,  if such  demand  is made  after  12:00  noon,  on the next
succeeding  Business Day) pay, in immediately


                                       7
<PAGE>

available funds, the full unpaid amount of the Guaranteed  Obligations,  or such
lesser amount, if any, as may be specifically  demanded by Administrative  Agent
from time to time, to Administrative  Agent at Administrative  Agent's Principal
Office  located in New York,  New York or at such other place as  Administrative
Agent may specify to  Guarantor  in  writing.  If  acceleration  of the time for
payment of any amount  payable by Borrower  under or with  respect to any of the
Guaranteed  Obligations  is stayed or  otherwise  delayed  upon the  insolvency,
bankruptcy or reorganization of Borrower,  all such amounts otherwise subject to
acceleration under the terms of the Guaranteed  Obligations shall nonetheless be
payable by Guarantor hereunder promptly on demand by Administrative Agent.

         7. Cumulative Remedies;  No Election. If Guarantor is or becomes liable
or obligated for the Guaranteed Obligations,  by endorsement or otherwise, other
than under this  Guaranty,  such  liability  or  obligation  shall not be in any
manner   impaired  or  affected   hereby,   and  the  rights  and   remedies  of
Administrative  Agent or any Lender hereunder shall be cumulative of any and all
other rights and remedies that Administrative Agent or such Lender may ever have
against  Guarantor.  The exercise by  Administrative  Agent or any Lender of any
right or remedy hereunder or under any other agreement,  document or instrument,
or at law or in equity, shall not preclude the concurrent or subsequent exercise
of any other right or remedy.  Without in any way limiting the generality of the
foregoing,  it is specifically understood and agreed that this Guaranty is given
by  Guarantor  as an  additional  guaranty  or  security  to any and  all  other
guaranties or security heretofore,  concurrently  herewith or hereafter executed
and/or  delivered  by Guarantor  to or in favor of  Administrative  Agent or any
Lender relating to the Guaranteed Obligations,  and nothing herein shall ever be
deemed to in any way negate or replace any such other  guaranties  or  security;
provided, however, that Administrative Agent and Lenders shall have all of their
rights and remedies under this Guaranty irrespective of anything to the contrary
contained  in any such  other  guaranties  or  security.  This  Guaranty  may be
enforced  from time to time as often as occasion  therefor may arise,  and it is
agreed and understood that it shall not be necessary for Administrative Agent or
any  Lender,  in order to enforce  this  Guaranty  against  Guarantor,  first to
exercise  any  rights  or  remedies  against  Borrower  or any  other  Person or
institute suit or exhaust any available  rights or remedies  against security in
Administrative  Agent's  or any  Lender's  possession  or  under  Administrative
Agent's or any Lender's  control,  or to resort to any other sources or means of
obtaining payment of the Guaranteed Obligations.

         8. Joint and Several  Obligation.  Guarantor agrees that Administrative
Agent and  Lenders,  in their sole  discretion,  may (a) bring suit  against all
guarantors or other Persons liable or obligated to  Administrative  Agent or any
Lender or against any one or more of them,  for interest,  penalties,  expenses,
fees, indebtedness,  liabilities and obligations owed to Administrative Agent or
any Lender and apply any amounts obtained by Administrative  Agent or any Lender
in such a manner as Administrative Agent or any Lender may elect, (b) bring suit
against all  guarantors of the Guaranteed  Obligations  jointly and severally or
against  any one or more of them,  (c)  settle  fully or in part with any one or
more of such guarantors for such  consideration as  Administrative  Agent or any
Lender may deem proper,  and (d)  partially or fully release one or more of such
guarantors from liability under any guaranty agreement,  and that no such action
shall  impair the rights of  Administrative  Agent or any Lender to collect  the
Guaranteed Obligations (or the unpaid balance


                                       8
<PAGE>

thereof) from other guarantors (including,  without limitation,  Guarantor),  or
any of them, not so sued, settled with or released.

         9.  Release of  Collateral,  etc. If all or any part of the  Guaranteed
Obligations is at any time secured,  Guarantor agrees that Administrative  Agent
or any Lender may, at any time and from time to time in its  discretion and with
or  without  valuable   consideration,   allow  substitution  or  withdrawal  of
collateral or other security and release  collateral or other  security  without
impairing or diminishing the liabilities or obligations of Guarantor  hereunder.
Guarantor further agrees that, if Borrower or any other Person executes in favor
of Administrative Agent or any Lender any collateral agreement,  mortgage,  deed
of  trust,   collateral   assignment,   security  agreement  or  other  security
instrument,  the exercise by Administrative  Agent or any Lender of any right or
remedy thereby conferred on  Administrative  Agent or any Lender shall be wholly
discretionary with Administrative Agent and such Lender, respectively,  and that
the  exercise  or failure to exercise  any such right or remedy  shall in no way
impair or diminish the  obligation  of Guarantor  hereunder.  Guarantor  further
agrees that (except to the extent  prohibited by applicable law  notwithstanding
an agreement of the parties to the contrary)  neither  Administrative  Agent nor
any Lender  shall be liable  for its  failure  to use  diligence  or care in the
collection of the Guaranteed  Obligations,  in the creation or perfection of any
lien,  security interest or assignment intended as security or in preserving the
liability of any Person liable or obligated on the Guaranteed  Obligations,  and
Guarantor hereby waives presentment for payment,  notice of nonpayment,  protest
and notice thereof,  and diligence in bringing suit against any Person liable on
the Guaranteed Obligations or any part thereof.

         10. Binding Effect.  This Guaranty is for the benefit of Administrative
Agent and Lenders and their successors and permitted  assigns,  and in the event
of an  assignment  by  Administrative  Agent or any Lender or its  successors or
assigns  of the  Guaranteed  Obligations,  or any part  thereof,  the rights and
benefits  hereunder,  to the extent applicable to the indebtedness,  liabilities
and  obligations  so  assigned,  may  be  transferred  with  such  indebtedness,
liabilities and obligations.  This Guaranty is binding, not only upon Guarantor,
but upon its successors and assigns.

         11. WAIVER OF SUBROGATION,  CONTRIBUTION AND OTHER RIGHTS. UPON PAYMENT
BY  GUARANTOR  OF ANY SUMS IN RESPECT OF THE  GUARANTEED  OBLIGATIONS  HEREUNDER
(INCLUDING,  WITHOUT LIMITATION, ANY AMOUNTS ADVANCED TO BORROWER BY GUARANTOR),
ALL  RIGHTS  OF  GUARANTOR  AGAINST  BORROWER  OR  ANY  OTHER  GUARANTOR  OF THE
GUARANTEED  OBLIGATIONS  ARISING  AS A  RESULT  THEREFROM  BY  WAY OF  RIGHT  OF
SUBROGATION,  REIMBURSEMENT,  EXONERATION, CONTRIBUTION,  INDEMNIFICATION AND/OR
OTHERWISE  SHALL IN ALL RESPECTS BE  SUBORDINATE  AND JUNIOR IN RIGHT OF PAYMENT
AND ENFORCEMENT TO THE PRIOR INDEFEASIBLE PAYMENT AND ENFORCEMENT IN FULL OF THE
GUARANTEED OBLIGATIONS. GUARANTOR SHALL NOT HAVE, AND HEREBY IRREVOCABLY WAIVES,
ANY AND ALL RIGHTS AND  REMEDIES  OF  SUBROGATION,  REIMBURSEMENT,  EXONERATION,
CONTRIBUTION,  INDEMNIFICATION  AND/OR OTHERWISE AGAINST OR FROM BORROWER UNLESS
AND UNTIL ALL OF THE GUARANTEED OBLIGATIONS HAVE BEEN PAID AND


                                       9
<PAGE>

PERFORMED IN FULL. IN ADDITION TO THE FOREGOING,  GUARANTOR  HEREBY  IRREVOCABLY
WAIVES  ANY AND ALL  CLAIMS  OR OTHER  RIGHTS  AND  REMEDIES  IT MAY NOW HAVE OR
HEREAFTER  ACQUIRE AGAINST  ADMINISTRATIVE  AGENT,  ANY LENDER,  BORROWER OR ANY
OTHER PERSON UNDER  CHAPTER 34 OF THE TEXAS  BUSINESS AND COMMERCE  CODE,  UNDER
RULES 31 AND 163 OF THE TEXAS RULES OF CIVIL PROCEDURE,  UNDER SECTION 17.001 OF
THE TEXAS CIVIL  PRACTICE AND REMEDIES  CODE AND UNDER ANY OTHER  STATUTE OF ANY
STATE OR OTHER  JURISDICTION  REQUIRING  RECOURSE AGAINST THE PRIMARY OBLIGOR OR
IMPOSING OTHER  REQUIREMENTS  AS A CONDITION TO RECOURSE  AGAINST A GUARANTOR IF
AND TO THE EXTENT THAT THE SAME MAY BE  APPLICABLE TO THIS  GUARANTY.  Except as
expressly  otherwise  provided in this  Paragraph 11,  Guarantor  shall have all
rights   of   subrogation,   reimbursement,    exoneration,   contribution   and
indemnification that may exist under currently applicable law.


                                       10
<PAGE>

         12.  Subordination  of Indebtedness  and Liens. In connection with this
Guaranty, Guarantor hereby agrees that:

                  (a) The payment of any and all  principal  of and  interest on
         the Subordinated  Indebtedness (as defined below) shall in all respects
         be  subordinate  and junior in right of payment and  enforcement to the
         prior payment and enforcement in full of all Guaranteed  Obligations as
         provided in this Paragraph 12. The Subordinated  Indebtedness shall not
         be payable,  and no payment of principal,  interest or other amounts on
         account  thereof,  and no property or guaranty of any nature to secure,
         guarantee or pay the Subordinated  Indebtedness shall be made or given,
         directly  or  indirectly  by or on  behalf  of  Borrower  or  received,
         accepted,  retained  or  applied  by  Guarantor  unless  and  until the
         Guaranteed  Obligations  shall  have been paid and  performed  in full;
         except that,  prior to the  occurrence  and  continuance of an Event of
         Default,  Guarantor shall have the right to receive regularly scheduled
         payments, but not prepayments, on the Subordinated Indebtedness made in
         the ordinary  course of business.  After the  occurrence of an Event of
         Default,  no payments of  principal  or interest  may be made or given,
         directly  or  indirectly,  by or on behalf  of  Borrower  or  received,
         accepted,  retained  or  applied  by  Guarantor  unless  and  until the
         Guaranteed  Obligations  shall have been paid and performed in full. If
         any sums shall be paid to  Guarantor  or any  Affiliate of Guarantor by
         Borrower   or  any  other   Person  on  account  of  the   Subordinated
         Indebtedness  when such payment is not permitted  hereunder,  such sums
         shall be held in trust by Guarantor  for the benefit of  Administrative
         Agent and Lenders and shall  forthwith be  delivered to  Administrative
         Agent without  affecting the liability of Guarantor under this Guaranty
         and may be applied  by  Administrative  Agent  against  the  Guaranteed
         Obligations in accordance with the Credit  Agreement.  Upon the request
         of Administrative Agent, Guarantor shall execute,  deliver, and endorse
         to Administrative  Agent such documentation as Administrative Agent may
         request to perfect,  preserve  and enforce  its rights  hereunder.  For
         purposes  of this  Guaranty  and with  respect to  Guarantor,  the term
         "Subordinated  Indebtedness"  means all  indebtedness,  liabilities and
         obligations  of  Borrower  to  Guarantor,  whether  such  indebtedness,
         liabilities  and  obligations  now exist or are  hereafter  incurred or
         arise, or are primary,  absolute,  secondary,  direct, indirect, fixed,
         contingent, liquidated,  unliquidated, secured or unsecured, matured or
         unmatured,  joint,  several,  joint  and  several,  or  otherwise,  and
         irrespective of whether such  indebtedness,  liabilities or obligations
         are  evidenced  by a note,  contract,  open account or  otherwise,  and
         irrespective of the Person or Persons in whose favor such indebtedness,
         obligations or liabilities may, at their  inception,  have been, or may
         hereafter  be  created,  or the  manner in which  they have been or may
         hereafter be acquired by Guarantor;

                  (b) Any and all Liens  (including  any  judgment  Liens)  upon
         Borrower's  property  or assets  securing  payment of any  Subordinated
         Indebtedness  (the  "Subordinated  Liens") shall be and remain inferior
         and  subordinate to any and all Liens upon  Borrower's  assets securing
         payment of the Guaranteed  Obligations or any part thereof,  regardless
         of whether such  Subordinated  Liens  presently  exist or are hereafter
         created or when such Subordinated Liens were created,  perfected, filed
         or recorded.  Guarantor  shall not  exercise or enforce any  creditors'
         rights or remedies  that it may have  against  Borrower  or  foreclose,
         repossess,


                                       11
<PAGE>

         sequester  or otherwise  institute  any action or  proceeding  (whether
         judicial or otherwise,  including, without limitation, the commencement
         of,  or  joinder  in,  any  bankruptcy,   insolvency,   reorganization,
         liquidation,  receivership  or other debtor  relief law) to enforce any
         Subordinated  Lien on any  property  or assets of  Borrower  unless and
         until the Guaranteed  Obligations  shall have been irrevocably paid and
         performed in full.

                  (c)   In  the   event   of   any   receivership,   bankruptcy,
         reorganization,  rearrangement,  debtor's  relief  or other  insolvency
         proceeding  involving  Borrower as debtor,  Administrative  Agent shall
         have the  right to prove  and vote any  claim  under  the  Subordinated
         Indebtedness  and to receive  directly  from the  receiver,  trustee or
         other court custodian all dividends, distributions and payments made in
         respect  of  the   Subordinated   Indebtedness   until  the  Guaranteed
         Obligations have been paid in full.  Administrative Agent may apply any
         such  dividends,  distributions  and  payments  against the  Guaranteed
         Obligations in accordance with the Credit Agreement;

                  (d)  All  promissory  notes,  accounts  receivable,   ledgers,
         records or any other  evidence of  Subordinated  Indebtedness,  and all
         mortgages,  deeds of trust, security agreements,  assignments and other
         security documents  evidencing the Subordinated  Liens, shall contain a
         specific  written  notice  thereon  that  the  indebtedness  and  Liens
         evidenced  thereby are  subordinated  under the terms of this Guaranty;
         and

                  (e) The terms and provisions of this Paragraph 12 are given by
         Guarantor as  additional  rights,  remedies and benefits to any and all
         other subordination  agreements  heretofore,  concurrently  herewith or
         hereafter executed by Guarantor to or in favor of Administrative  Agent
         or any Lender,  and nothing in this Guaranty shall ever be deemed to in
         any way  negate or  replace  any other  such  previous,  concurrent  or
         subsequent subordination agreements.

         13. Right of Setoff.  Guarantor hereby grants to  Administrative  Agent
and each Lender a right of setoff upon any and all monies,  securities  or other
property of  Guarantor,  and the proceeds  therefrom,  now or hereafter  held or
received by or in transit to Administrative  Agent or any Lender from or for the
account of Guarantor,  whether for safekeeping,  custody, pledge,  transmission,
collection or otherwise, and also upon any and all deposits (general or special)
and  credits  of  Guarantor,  and  any  and  all  claims  of  Guarantor  against
Administrative  Agent or any  Lender at any time  existing.  The right of setoff
granted  pursuant to this Paragraph 13 shall be cumulative of and in addition to
Administrative Agent's and each Lender's common law right of setoff.

         14. Further Assurances. Upon the request of Administrative Agent or any
Lender,  Guarantor  will,  at any time and from time to time,  duly  execute and
deliver to Administrative  Agent any and all such further agreements,  documents
and instruments,  and supply such additional information, as may be necessary or
advisable,  in the reasonable opinion of Administrative  Agent or any Lender, to
obtain the full benefits of this Guaranty.


                                       12
<PAGE>

         15. Invalid Provisions. If any provision of this Guaranty is held to be
illegal,  invalid or unenforceable under present or future laws effective during
the term hereof, such provision shall be fully severable, this Guaranty shall be
construed and enforced as if such illegal,  invalid or  unenforceable  provision
had never  comprised a part hereof,  and the remaining  provisions  hereof shall
remain in full  force and  effect  and shall  not be  affected  by the  illegal,
invalid or unenforceable provision or by its severance herefrom. Furthermore, in
lieu of such illegal,  invalid or  unenforceable  provision there shall be added
automatically as a part of this Guaranty a provision as similar in terms to such
illegal,  invalid or  unenforceable  provision  as may be possible and be legal,
valid  and  enforceable.  No  provision  herein or in any  other  Loan  Document
evidencing  the Guaranteed  Obligations  shall require the payment or permit the
collection of interest in excess of the maximum permitted by applicable law.

         16.  Modification in Writing.  No modification,  consent,  amendment or
waiver of any  provision of this  Guaranty,  and no consent to any  departure by
Guarantor  herefrom,  shall be effective unless the same shall be in writing and
signed by a duly authorized  officer of  Administrative  Agent and Guarantor and
then shall be  effective  only in the  specific  instance  and for the  specific
purpose for which given.

         17.  No  Waiver,   Etc.  No  notice  to  or  demand  on   Guarantor  or
Administrative  Agent in any case  shall  entitle  Guarantor  or  Administrative
Agent,  respectively,  to any other or  further  notice or demand in  similar or
other circumstances. No delay or omission by Administrative Agent, any Lender or
Guarantor  in  exercising  any right or remedy  hereunder  shall impair any such
right or remedy or be construed as a waiver thereof or any acquiescence therein,
and no single or partial  exercise  of any such right or remedy  shall  preclude
other or further  exercise  thereof or the exercise of any other right or remedy
hereunder.

         18. Cumulative Rights. All rights and remedies of Administrative  Agent
and Lenders  hereunder are  cumulative of each other and of every other right or
remedy which  Administrative Agent or any Lender may otherwise have at law or in
equity or under any other contract or document,  and the exercise of one or more
rights or remedies  shall not  prejudice or impair the  concurrent or subsequent
exercise of other rights or remedies.

         19. Expenses. Guarantor agrees to pay on demand by Administrative Agent
all reasonable costs and expenses incurred by Administrative Agent or any Lender
in connection  with the enforcement of the terms and provisions of this Guaranty
and, if and to the extent that Borrower is obligated therefor in accordance with
the  Credit  Agreement,  any  and  all  amendments,   modifications,   renewals,
restatements  and/or  supplements hereto from time to time,  including,  without
limitation,  the reasonable fees and expenses of legal counsel to Administrative
Agent.  If  Guarantor  should  breach or fail to perform any  provision  of this
Guaranty, Guarantor agrees to pay to Administrative Agent all costs and expenses
incurred  by  Administrative  Agent or any  Lender  in the  enforcement  of this
Guaranty from time to time, including,  without limitation,  the reasonable fees
and expenses of all legal counsel to Administrative Agent and Lenders.


                                       13
<PAGE>

         20.  APPLICABLE  LAW. THIS GUARANTY SHALL BE GOVERNED BY, AND CONSTRUED
IN  ACCORDANCE  WITH,  THE  LAWS OF THE  STATE OF NEW YORK  (WITHOUT  REGARD  TO
CONFLICTS OF LAWS PRINCIPLES).

         21. NO ORAL  AGREEMENTS.  THIS GUARANTY  REPRESENTS THE FINAL AGREEMENT
BETWEEN GUARANTOR AND  ADMINISTRATIVE  AGENT AND LENDERS RELATING TO THE SUBJECT
MATTER  OF THIS  GUARANTY  AND MAY NOT BE  CONTRADICTED  BY  EVIDENCE  OF PRIOR,
CONTEMPORANEOUS  OR SUBSEQUENT  ORAL  AGREEMENTS  OF SUCH PARTIES.  THERE ARE NO
UNWRITTEN ORAL AGREEMENTS BETWEEN OR AMONG GUARANTOR AND ADMINISTRATIVE AGENT OR
ANY LENDER.  THIS GUARANTY  SUPERSEDES ALL PRIOR (IF ANY) ORAL AGREEMENTS,  ORAL
ARRANGEMENTS  OR ORAL  UNDERSTANDINGS  RELATING  TO THE  SUBJECT  MATTER OF THIS
GUARANTY,  AND THIS GUARANTY  SUPERSEDES  ALL PRIOR (IF ANY) WRITTEN  AGREEMENTS
RELATING TO THE SUBJECT  MATTER OF THIS  GUARANTY IF AND TO THE EXTENT THAT SUCH
PRIOR AGREEMENTS ARE INCONSISTENT WITH THIS GUARANTY.

         22. Notices. All notices and other communications required or permitted
to be given under this  Guaranty  shall be given or made in writing and shall be
delivered in the manner and to the  addresses,  and shall be deemed to have been
duly given when, specified in the Credit Agreement.

         23. Survival. All representations, warranties, covenants and agreements
of Guarantor in this Guaranty shall survive the execution of this Guaranty.

         24.  Counterparts.  This  Guaranty  may be  executed  in any  number of
counterparts,  each of which shall constitute an original, but all of which when
taken together shall constitute one and the same Guaranty.

         25.  Limitation on Interest.  Notwithstanding  anything to the contrary
contained or referred to in this  Guaranty,  none of the terms and provisions of
this Guaranty, the Credit Agreement,  the Notes or any other Loan Document shall
ever be construed to create a contract or  obligation  to pay interest at a rate
in excess of the Maximum Rate, and neither  Administrative  Agent nor any Lender
shall ever charge, receive, take, collect,  reserve or apply, as interest on the
Obligations or the Guaranteed  Obligations,  any amount in excess of the Maximum
Rate. The parties hereto agree that any interest,  charge, fee, expense or other
indebtedness,  liability or obligation provided for in this Guaranty, the Credit
Agreement, the Notes or any other Loan Document which constitutes interest under
applicable law shall be, ipso facto and under any and all circumstances, limited
or reduced to an amount equal to the lesser of (a) the amount of such  interest,
charge, fee, expense or other  indebtedness,  liability or obligation that would
be payable  in the  absence of this  Paragraph  25 or (b) an amount,  which when
added to all other interest payable under this Guaranty,  the Credit  Agreement,
the  Notes  and  any  other  Loan   Document,   equals  the  Maximum  Rate.  If,
notwithstanding the foregoing, Administrative Agent or any Lender ever contracts
for, charges,  receives,  takes,  collects,  reserves or applies as interest any
amount  in  excess  of the  Maximum  Rate,  such  amount


                                       14
<PAGE>

which would be deemed  excessive  interest shall be deemed a partial  payment or
prepayment of principal of the  Obligations  and the Guaranteed  Obligations and
treated   hereunder  as  such,  and  if  the   Obligations  and  the  Guaranteed
Obligations,  or applicable  portions  thereof,  are paid in full, any remaining
excess shall  promptly be paid to  Borrower,  Guarantor or such other Person (as
appropriate).  In  determining  whether the interest paid or payable,  under any
specific   contingency,   exceeds  the  Maximum   Rate,   Guarantor,   Borrower,
Administrative  Agent and Lenders  shall,  to the maximum  extent  permitted  by
applicable law, (i) characterize any nonprincipal  payment as an expense, fee or
premium  rather than as interest,  (ii) exclude  voluntary  prepayments  and the
effects thereof,  and (iii) amortize,  prorate,  allocate and spread in equal or
unequal parts the total amount of interest  throughout  the entire  contemplated
term of the Obligations and the Guaranteed  Obligations,  or applicable portions
thereof,  so that the interest rate does not exceed the Maximum Rate at any time
during the term of the  Obligations  and the  Guaranteed  Obligations;  provided
that, if the unpaid principal balance is paid and performed in full prior to the
end of the full contemplated term thereof,  and if the interest received for the
actual  period of existence  thereof  exceeds the Maximum  Rate,  Administrative
Agent and Lenders  shall refund to Borrower,  Guarantor or such other Person (as
appropriate)   the  amount  of  such  excess   and,   in  such  event,   neither
Administrative  Agent nor any Lender shall be subject to any penalties  provided
by any  laws for  contracting  for,  charging,  receiving,  taking,  collecting,
receiving or applying interest in excess of the Maximum Rate.

         26 Irrevocable Nature of Guaranty.  This Guaranty may not be revoked by
Guarantor; provided, however, in the event it shall be determined that Guarantor
shall have the right, in accordance with applicable law and  notwithstanding its
express agreement herein to the contrary, to revoke this Guaranty, Guarantor may
deliver to  Administrative  Agent,  at its  address for notices set forth in the
Credit  Agreement,  written  notice of  Guarantor's  intention  not to be liable
hereunder for any  Guaranteed  Obligations  arising,  created or incurred  after
Administrative  Agent's  receipt of such notice,  whereupon such notice shall be
effective  to the extent (but only to the  extent)  provided  hereinbelow  as to
Guarantor  from and after (but not before) the time when such notice is actually
delivered  to and  received by and  receipted  for in writing by  Administrative
Agent (the "Effective Revocation Time"); provided,  further,  however, that such
notice shall not be effective as to, and shall not in any way  restrict,  limit,
impair,   release  or  otherwise  affect,   the  indebtedness,   liabilities  or
obligations of Guarantor  under this Guaranty with respect to (a) any Guaranteed
Obligations  consisting of  indebtedness,  liabilities or obligations  under the
Credit Agreement, the Notes or any other Loan Document,  whether incurred before
or after the Effective  Revocation  Time  (including,  without  limitation,  any
loans,  advances or  extensions  of credit at any time made or created under the
Credit Agreement, whether or not agreed, committed or contemplated to be made by
Administrative  Agent  or any  Lender  and  whether  or not  discretionary  with
Administrative  Agent or any Lender),  (b) any Guaranteed  Obligations  arising,
created or incurred prior to the Effective  Revocation Time, (c) any amendments,
modifications,  renewals,  extensions,  restatements and/or supplements to or of
the indebtedness,  liabilities or obligations referred to in clauses (a) and (b)
preceding,  whether occurring before or after the Effective  Revocation Time, or
(d) any interest or costs of collection with respect to any of the indebtedness,
liabilities or obligations referred to in clauses (a), (b) or (c) preceding. Any
revocation  or attempted  revocation  of this  Guaranty,  whether in whole or in
part, shall not be effective except under limited circumstances (if any), and to
the limited extent, expressly provided in this Paragraph 26.


                                       15
<PAGE>

         27 Reinstatement of Guaranteed Obligations. Notwithstanding anything to
the  contrary  contained  in this  Guaranty or any other Loan  Document,  if the
payment of any amount of principal of or interest with respect to the Guaranteed
Obligations,  or any portion thereof, is rescinded,  voided or must otherwise be
refunded by the  Administrative  Agent or any Lender or otherwise for any reason
whatsoever, then the Guaranteed Obligations will be automatically reinstated and
become  automatically  effective and in full force and effect, all to the extent
that and as though such payment so rescinded,  voided or otherwise  refunded had
never been made.

         28 Covenants and  Agreements.  Guarantor  covenants and agrees that, as
long as the Guaranteed  Obligations  or any part thereof are  outstanding or any
Lender has any Commitment under the Credit Agreement,  it will comply,  strictly
in  accordance  with the  terms  thereof,  with  all  covenants  and  agreements
specifically  applicable  to it as set  forth  in any one or more of the  Credit
Agreement and the other Loan Documents,  all of which are incorporated herein by
reference.

         29  Amendment  and  Restatement.  This  Guaranty  shall  constitute  an
amendment  and  restatement  of  all,  but  not  an  extinguishment,  discharge,
satisfaction or novation of any,  indebtedness,  liabilities  and/or obligations
(including,  without  limitation,  the "Guaranteed  Obligations" as such term is
defined in the Original Guaranty) of Guarantor under the Original Guaranty.


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                                       16
<PAGE>

         IN WITNESS  WHEREOF,  the  undersigned has executed this Guaranty as of
the date first written above.

                                          GUARANTOR:
                                          ---------

                                          GLOBAL NETWORK ASSETS, LLC, a Delaware
                                          limited liability company


                                          By:    /s/ Steven M. Gallant
                                                 --------------------------
                                          Name:  Steven M. Gallant
                                          Title: President

         The  undersigned  has executed this Guaranty  solely for the purpose of
confirming   receipt  of  this   Guaranty  and  reliance  on  this  Guaranty  by
Administrative Agent and Lenders as of the date first written above.

                                          NORTEL NETWORKS INC.,
                                          as Administrative Agent

                                          By:    /s/ Mitchell L. Stone
                                                 --------------------------
                                          Name:  Mitchell L. Stone
                                          Title: Director, Customer Finance

                                       17


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