Document:

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                                                                   EXHIBIT 10.38

                                                                    Confidential

                               LICENSE AGREEMENT*

     This License Agreement ("Agreement"), effective March 1, 2000 (the
"Effective Date"), between MOTOROLA, INC. with offices at 3501 Ed Bluestein
Boulevard, Austin, Texas, 78721 (hereinafter "Motorola") and NUMERICAL
                                              --------
TECHNOLOGIES, INC. with offices at 70 West Plumeria Drive San Jose, CA 95134-
2134 (hereinafter "NTI").
                   ---

     WHEREAS, NTI has developed software and patented technology useful in the
design and manufacture of integrated circuits; and

     WHEREAS, Motorola desires to license such software and technology.

     NOW, THEREFORE, in consideration of the rights and obligations set forth
below Motorola and NTI agree as follows:

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

          1.1  "Affiliate" means an entity controlling or controlled by
                ---------
Motorola. For purposes of this definition, "control" or any correlative form
thereof, means the ownership of more than fifty-one percent (51%) of the voting
stock of such entity, or if such entity is not a corporation, the ability to
control the day-to-day operations and business of such entity.

          1.2  "Confidential Information" means confidential or proprietary
                ------------------------
information which is disclosed by one party ("disclosing party") to the other
party of this Agreement ("receiving party") in oral, written, graphic, machine-
readable, or sample form, and which is marked as such, if in tangible form, or
is identified as such by the disclosing party, if in intangible form, at or
before the time of disclosure and is summarized in a writing to the receiving
party within 30 days after disclosure, and may include third party information
which the disclosing party is authorized to disclose to receiving party.
Confidential Information also includes this Agreement and all its Exhibits, any
addenda hereto signed by both parties, all Licensed Software listings,
Documentation, information, data, drawings, benchmark tests, specifications,
trade secrets, object code and machine-readable copies of the Licensed Software,
source code relating to the Licensed Software.

          1.3  "Contract Manufacturing" means a business relationship under
                ----------------------
which Motorola produces integrated circuits according to specifications and
designs provided by a third party, which distributes such integrated circuits
under a trademark other than Motorola's.

          1.4  "Design Service" means a business relationship under which
                --------------
Motorola designs integrated circuits for a third party which distributes such
integrated circuits under a trademark other than Motorola's.

* Certain information in this document has been omitted and filed separately
  with the Commission. Confidential treatment has been requested with respect to
  the omitted portions.
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          1.5  "Fix Release" means functional and/or feature improvements made,
                -----------
at NTI's discretion, to the Licensed Software, including but not limited to bug
fixes, performance enhancements, improvements, or error corrections that are
generally made available to NTI's other customers. Such Fix Releases are
typically identified by a change in the digit(s) to the right of the tenths
digit [x.x.(x)] (i.e.-1.01, 1.02, 1.03).

          1.6  "Licensed Software" means the software products in object code
                -----------------
(machine readable) form and related documentation listed in Appendix A and all
written material relating thereto (including but not limited to user manuals,
published external specifications, and test materials) and all Fix Releases and
Updates, and any New Releases provided to Motorola under the terms of this
Agreement, and includes any and all documentation relating to the Licensed
Software including instruction manuals and on-line help files.

          1.7  "Licensed Site" means a Motorola facility as further described
                -------------
in Appendix A.

          1.8  "Major Problem" means a problem which causes a feature failure
                -------------
of the Licensed Software that can be avoided by alternate methods.

          1.9  "Minor Problem" means a problem which causes only minor
                -------------
inconvenience to the computer system user including, but not limited to,
misspelled error messages and documentation errors.

          1.10 "New Release" means a substantial improvement in user
                -----------
functionality that is marketed by NTI as a new and improved software product, or
a version of the Licensed Software which replaces previous Releases (such new
versions are typically identified by a change in the digit prior to the decimal
point [(x).x.x] (i.e. 4.0, 3.0). A Release is a substantial improvement that
does more than fix program errors in a previous Release. NTI's obligations to
provide New Releases to Motorola are set forth in Section 3.2.

          1.11 "NTI's Patent Rights" means U.S. Patent No. 5,858,580 (and any
                -------------------
foreign counterparts thereto).

          1.12 "Updates" mean any subsequent release(s) of the initial version
                -------
of the Licensed Software which includes unique functional and/or feature
improvements made at NTI's discretion to the Licensed Software and that are
generally made available to NTI's other customers. Such Updates are typically
identified by a change in the tenths digit [x.(x).x] (i.e.-1.10, 1.20, 1.30).

     2.   License Rights to the Licensed Software.
          ---------------------------------------

          2.1  Software License.  Subject to the terms and conditions of this
               ----------------
Agreement, NTI grants to Motorola a time-limited, non-transferable (except as
provided in Section 11.2) nonexclusive license to use and execute the Licensed
Software on a single computer for the purpose of designing integrated circuits
that are produced in a Licensed Site and then distributed under a

                                      -2-
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Motorola owned trademark, unless earlier terminated as provided herein. NTI also
grants to Motorola a non-exclusive license to reproduce the Licensed Software
solely for Motorola's internal back-up and archival purposes. Motorola has no
right to sub-license the rights granted herein. Motorola has no right to use the
rights granted herein for Design Services or Contract Manufacturing.

          2.2  Patent License.  Subject to the terms and conditions of this
               --------------
Agreement, NTI grants to Motorola a time-limited, non-transferable (except as
provided in Section 11.2 and in accordance with Addendum B) non-exclusive,
worldwide right and license under NTI's Patent Rights to exercise its license
rights to the Software under Section 2.1 of this Agreement and to produce at a
Licensed Site integrated circuits that are designed with the Software and then
are distributed under a Motorola owned trademark, unless terminated as provided
herein. Motorola has no right to sub-license the rights granted herein. Motorola
has no right to use the rights granted herein for Design Services or Contract
Manufacturing.

          2.3  Copies.  Motorola will be entitled to make a reasonable number
               ------
of machine-readable copies of the Software for backup or archival purposes.
Motorola may not copy the Software, except as permitted by this Agreement.
Motorola shall maintain accurate and up-to-date records of the number and
location of all copies of the Software and inform Numerical Technologies in
writing of such location(s) upon request. All copies of the Software will be
subject to all terms and conditions of this Agreement. Whenever Motorola is
permitted to copy or reproduce all or any part of the Software, all titles,
trademark symbols, copyright symbols and legends, patent markings and other
proprietary markings must be reproduced.

          2.4  Restrictions. Motorola agrees that it will not itself, or
               ------------
through any parent, subsidiary, Affiliate, agent, or other third party: (a)
sell, lease, license or sublicense the Licensed Software; or (b) decompile,
disassemble, or reverse engineer the Licensed Software, in whole or in part; or
(c) write or develop any derivative software or any other software program based
upon the Licensed Software or any Confidential Information disclosed by NTI; or
(d) use the Licensed Software to provide processing services to third parties,
or otherwise use the Licensed Software on a 'service bureau' basis; or (e)
provide, disclose, divulge or make available to, or permit use of the Licensed
Software by any third party without NTI's prior written consent.

          2.5  Reservations.  This license transfers to Motorola neither title
               ------------
nor any proprietary rights to the Licensed Software or any copyrights, patents,
or trademarks, embodied therein, except for the rights expressly granted herein.

     3.   Support, Fix Releases and Updates.
          ---------------------------------

     The subsections of this Section 3 describe the rights and obligations of
the parties for Support, Fix Releases, Updates and New Releases.

                                      -3-
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          3.1  Support Services.
               ----------------

               3.1.1     NTI agrees to provide Motorola with ongoing support and
maintenance for the current version of the Licensed Software and any and all
Updates and Fix Releases to the current version. Support and maintenance will be
provided by NTI at no additional cost to Motorola from 8 a.m. to 6 p.m. Pacific
time Monday through Friday.

               3.1.2     For a Major Problem, NTI agrees to have trained support
personnel with working knowledge of the Licensed Software available for
telephone consultation with Motorola's support personnel at no additional cost
to Motorola during the times listed in Section 3.1.1 to respond to a Major
Problem within one (1) calendar week such that, through NTI's reasonable
efforts, the Major Problem is either corrected or NTI provides a reasonable way
to resolve the Major Problem within that timeframe.

               3.1.3     For a Minor Problem, NTI agrees to have trained support
personnel with working knowledge of the Licensed Software available for
telephone consultation with Motorola's support personnel at no additional cost
to Motorola during the times listed in Section 3.1.1 to respond to a Minor
Problem within thirty (30) calendar days such that, through NTI's reasonable
efforts, the Minor Problem is either corrected or NTI provides a reasonable way
to resolve the Minor Problem within that timeframe.

               3.1.4     NTI's obligations under Sections 3.1.2 and 3.1.3 are
conditioned upon Motorola: (i) giving notice to NTI; (ii) using its reasonable
efforts to convey an accurate description of the error or problem, to reasonably
analyze the potential reasons causing the error or problem, and to create,
within reason, an appropriate environment allowing NTI to inquire further about
the nature of the error or problem; and (iii) reasonably classifying an error or
problem reported to NTI as a Major Problem or Minor Problem.

          3.2  Fix Releases, Updates and New Releases.  NTI shall provide any
               --------------------------------------
and all Fix Releases and Updates to Motorola for the then-current version of the
Licensed Software, without additional charge, promptly upon their general
release. New Releases are not provided under Support, or as part of Fix
Releases, and Updates; however, NTI agrees to make such New Releases available
to Motorola at mutually agreeable commercially reasonable terms.

     4.   Compensation.
          ------------

          4.1  Fees for Licensed Software.  In consideration of the rights
               --------------------------
granted to Motorola in NTI's Patent Rights and Licensed Software hereunder,
Motorola shall pay the fees set forth in Appendix B hereto (the "License Fees").
                                                                 ------------
Fees for Support, Fix Releases, and Updates are included in this License Fee.

                                      -4-
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          4.2  Transfer Fees and Peak Use Fees. Fees relating to the transfer
               -------------------------------
of the license to NTI's Rights from one Licensed Site to another Licensed Site
and fees for temporary use of a second Licensed Site during peak times are set
forth in Appendix B hereto.

          4.3  Payment.  Unless otherwise agreed by the parties, Motorola shall
               -------
pay the annual License Fees in quarterly payments as reflected in Appendix B
hereto.

          4.4  Taxes.  All charges and fees provided for in this Agreement
               -----
(including the Maintenance Fees) are exclusive of and do not include any taxes,
duties, or similar charges imposed by any government. Motorola agrees to pay or
reimburse NTI for all federal, state, dominion, provincial, or local sales, use,
personal property, excise or other taxes, fees, or duties arising out of this
Agreement or the transactions contemplated by this Agreement (other than taxes
on the net income of NTI).

          4.5  Audit.  On NTI's written request, not more frequently than once
               -----
per calendar year, Motorola shall provide to NTI a signed certification
verifying Motorola's compliance with the limited license provided hereunder. NTI
may, at NTI's expense and not more than once per calendar year, and upon
reasonable notice, audit Motorola's compliance with this Agreement through use
of an independent public accounting firm reasonably acceptable to Motorola and
subject to reasonable non-disclosure obligations. Any such audit shall be
conducted during business hours and shall not unreasonably interfere with
Motorola's business activities. If such an audit reveals that Motorola has
underpaid fees to NTI, Motorola shall be invoiced for the underpaid fees based
upon NTI's then-current prices in effect at the time of the audit.

     5.   Confidential Information.
          ------------------------

          5.1  Treatment and Use of Confidential Information.  For a period of
               ---------------------------------------------
two (2) years following the return of confidential information to the disclosing
party pursuant to Section 5, the receiving party agrees to protect Confidential
Information disclosed to it by the disclosing party with at least the same
degree of care as it normally exercises to protect the receiving party's own
information of like importance, but at least use reasonable care, in
safeguarding the disclosing party's Confidential Information against disclosure.
The receiving party shall use the Confidential Information solely in accordance
with the provisions of this Agreement.

          5.2  Visits to Other Party's Facilities.  The parties acknowledge that
               ----------------------------------
employee(s) of one party ("visiting party") may visit facilities of the other
party ("hosting party"). Notwithstanding the provisions in of this Agreement
regarding marking and writing requirements for Confidential Information, the
visiting party agrees to treat all information of the hosting party, whether
tangible or intangible, seen or heard by such employee(s) of the visiting party
during such visit as Confidential Information of the hosting party.

          5.3  Exclusions to Confidential Information.  A party's Confidential
               --------------------------------------
Information shall not include information that: (a) is now or becomes available
to the public without breach of

                                      -5-
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this Agreement, (b) is lawfully obtained by a third party, (c) is known to the
receiving party prior to disclosure by the disclosing party and had not been
obtained by the receiving party either directly or indirectly from the
disclosing party with a duty of confidentiality, (d) is developed by the
receiving party independently of any disclosure by the disclosing party, or (e)
is released in writing by the disclosing party.

          5.4  Permitted Disclosure.  A receiving party may disclose the
               --------------------
Confidential Information of the other party (i) in accordance with the prior
written approval of disclosing party, or (ii) after providing prior written
notice to disclosing party and after taking "Reasonable Measures" to obtain
confidential treatment of such Confidential Information where receiving party is
required to disclose such information pursuant to the order or requirement of a
court, administrative agency, or other governmental body. For the purposes of
this Section 5.4 "Reasonable Measures" shall mean designating Confidential
Information for protection under a previously existing protective order, or
providing the disclosing party reasonable assistance in such disclosing party's
efforts to obtain a protective order. Each party agrees that the terms and
conditions of this Agreement shall be treated as Confidential Information and
that no reference to this Agreement or to activities pertaining thereto can be
made in any form of public or commercial advertising without the prior written
consent of the other party, provided, however, that each party may disclose the
terms and conditions of this Agreement to: (1) legal counsel of the parties, (2)
in confidence, to accountants, banks, and financing sources and their advisors;
(3) in confidence, in connection with a merger or acquisition or proposed merger
or acquisition, or the like; or (4) in accordance with applicable law.

          5.5  Return of Confidential Information.  Upon termination of this
               ----------------------------------
Agreement as specified in Sections 13 and upon written request, each party
agrees to return Confidential Information of the other party to said other
party, along with copies made, or to certify that all such Confidential
Information has been destroyed, except that each party may retain archival
copies to be used only in a dispute concerning this Agreement.

          5.6  Confidential Information from or for third parties.  Each party
               --------------------------------------------------
will not disclose to the other party any confidential information belonging to
third parties unless it has obtained written authorization to do so. Motorola
may disclose Confidential Information of NTI to its Affiliates provided Motorola
and such Affiliates have executed an agreement having confidentiality provisions
similar to this Agreement before making any such disclosure.

     6.   Escrow.
          ------

          6.1  Escrow Account.  Promptly after the Effective Date of this
               --------------
Agreement, NTI agrees to place and maintain current in an escrow account in
California a copy of the source code for the Licensed Software hereunder (the
"Source Code"); provided, however, that NTI shall not be obligated to make
 -----------
deposits into the escrow account more frequently than twice per year. NTI shall
promptly notify Motorola of the identity of the escrow agent. Motorola shall
have the right at any time to contact the escrow agent for the purpose of
confirming that the Source Code is in the escrow account and verifying the
instructions to the escrow agent to release the Source Code under the

                                      -6-
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circumstances specified in Section 6.2 below. NTI shall bear all fees, expenses
and other charges to open and maintain such escrow account.

          6.2  Release.  If (i) NTI (or its successors or assigns) liquidates,
               -------
makes general assignment for the benefit of creditors or ceases doing business
as a going concern, or (ii) an involuntary bankruptcy petition is filed against
NTI and is not discharged with in ninety (90) days after NTI receives notice of
the filing of the petition, or (iii) NTI files a voluntary petition for
bankruptcy or (iv) a receiver is appointed for all or a substantial portion of
NTI's assets, or (v) or NTI fails to cure a material default by NTI or its
assigns or successors to perform its support obligations hereunder, within
thirty (30) days written notice specifically setting the basis for such claim of
a material default, then, upon notice thereof by Motorola to NTI and the escrow
agent, which notice is not disputed by NTI within thirty (30) days after NTI's
receipt thereof, the escrow agent shall deliver the Source Code to Motorola. If
NTI disputes Motorola's right to the Source Code, the matter shall be referred
to dispute resolution in accordance with the terms of this Agreement.

          6.3  License and Source Code Obligations.  Subject to the terms and
               -----------------------------------
conditions of this Agreement (including without limitation Sections 6.1 and
6.2), NTI hereby grants to Motorola a nonexclusive right to use and modify such
Source Code solely to correct errors in the Licensed Software. The object code
derived from the Source Code so modified shall be deemed to be Licensed Software
hereunder and subject to the same restrictions on use, reproduction, and
disclosure that are contained in this Agreement with respect to the Licensed
Software. Motorola shall have no right to copy the Source Code for any reason.
Motorola shall not distribute, sell or sublicense the Source Code. The Source
Code shall be deemed the Confidential Information of NTI pursuant to the terms
of this Agreement. In addition, Motorola shall restrict disclosure of the Source
Code to those within its organization who need to use it to correct errors, and
shall keep it in a secure, locked location when not in use. NTI shall retain all
right, title and interest in and to the Source Code and Licensed Software.

     7.   Status Meetings.
          ---------------

          7.1  Project Managers.  Each party shall appoint a project manager to
               ----------------
act as liaison with the other party. NTI shall make a Project manager available
onsite in Austin, Texas. Project managers shall participate in review meetings
as set forth in Section 7.2. Each party shall retain the sole discretion to
replace Project Managers upon notice to the other party.

          7.2  Meetings.  Twice each month the project managers or such other
               --------
personnel as the parties may agree upon, shall meet (either telephonically or in
person) to discuss the parties' activities under this Agreement. Upon mutual
consent of the parties, the parties will meet more frequently. Unless otherwise
agreed in writing, each party shall pay its own costs in connection with
attending any meetings under this Section 7.2.

                                      -7-
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     8.   Warranties.
          ----------

          8.1  General Warranty.  For ninety days after delivery of the Licensed
               ----------------
Software, NTI warrants that the Licensed Software will conform to the
specifications provided in the applicable documentation. NTI further warrants
that its obligations hereunder will be performed in a timely and professional
manner by qualified personnel.

          8.2  Rights and Powers. Each party warrants that it has the right and
               -----------------
power to enter into this Agreement. NTI warrants that it has the right and power
to grant Motorola the rights under this Agreement. NTI also warrants that to its
knowledge as of the Effective Date of this Agreement, the Licensed Software as
provided to Motorola does not infringe the proprietary rights, including patent,
trade secret, and copyright, of any third party.

          8.3  YEAR 2000 COMPLIANCE.  NTI REPRESENTS AND WARRANTS THAT THE
               --------------------
LICENSED SOFTWARE WILL BE COMPLIANT AND WILL CONTINUE TO BE YEAR 2000 COMPLIANT;
PROVIDED HOWEVER THAT THE FOLLOWING CONDITIONS ARE FIRST MET: (1) THAT THE
LICENSED SOFTWARE IS USED IN ACCORDANCE WITH THE TERMS OF THIS AGREEMENT AND (2)
IF ALL ASSOCIATED NON-NTI PRODUCTS (SUCH AS HARDWARE, SOFTWARE AND FIRMWARE)
USED IN COMBINATION WITH THE LICENSED SOFTWARE PROPERLY EXCHANGES DATE DATA WITH
THE LICENSED SOFTWARE. YEAR 2000 COMPLIANT SHALL MEAN ALL CALENDAR YEAR
REPRESENTATIONS USED WITHIN NTI LICENSED SOFTWARE WHICH, WHEN OPERATED ON
(INCLUDING, BUT NOT LIMITED TO, ARITHMETIC, COMPARISON AND SORTING OPERATIONS)
BEFORE, DURING AND AFTER THE ACTUAL CALENDAR YEAR 2000 SHALL NOT PRODUCE
SUBSEQUENT OPERATIONS AND/OR GENERATED OUTPUT WHICH YIELD RESULTS IN VARIANCE
WITH THE NORMAL COURSE OF OPERATIONS OF THE NTI LICENSED SOFTWARE OR ERROR
CONDITIONS WHICH ARE THE DIRECT RESULT OF THE USE OF A CALENDAR YEAR
REPRESENTATION.

          8.4  RECOMMENDATIONS AND SUGGESTIONS PROVIDED HEREUNDER ARE PROVIDED
ON AN "AS IS" BASIS AND NEITHER PARTY MAKES ANY WARRANTY AS TO THE ACCURACY,
SUFFICIENCY, OR SUITABILITY FOR THE OTHER'S USE OF ANY RECOMMENDATIONS,
SUGGESTIONS, OR ASSISTANCE PROVIDED HEREUNDER FOR USING THE EQUIPMENT OR FOR
MAKING PRODUCTS USING THE SAME. RECOMMENDATIONS AND SUGGESTIONS PROVIDED
HEREUNDER ARE PROVIDED ON AN "AS IS" BASIS AND NEITHER PARTY ASSUMES
RESPONSIBILITY OR LIABILITY FOR LOSS OR DAMAGES, WHETHER DIRECT, INDIRECT,
CONSEQUENTIAL, OR INCIDENTAL, WHICH MIGHT ARISE OUT OF THE OTHER'S USE THEREOF,
WHICH SHALL BE ENTIRELY AT THE USER'S RISK AND PERIL.

          8.5  EXCEPT AS SET FORTH IN THIS AGREEMENT, NTI MAKES NO WARRANTIES,
WHETHER EXPRESS, IMPLIED, OR STATUTORY REGARDING OR RELATING TO THE LICENSED
SOFTWARE, OR ANY MATERIALS OR SERVICES

                                      -8-
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FURNISHED OR PROVIDED TO MOTOROLA UNDER THIS AGREEMENT, INCLUDING MAINTENANCE
AND SUPPORT. EXCEPT AS SET FORTH IN THIS AGREEMENT, NTI SPECIFICALLY DISCLAIMS
ALL IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NON-INFRINGEMENT WITH RESPECT TO THE SOFTWARE AND DOCUMENTATION.

          8.6  MOTOROLA'S SOLE REMEDY FOR A BREACH OF THE WARRANTIES IN THIS
SECTION 8, SHALL BE NTI'S REPAIR OR REPLACEMENT OF THE LICENSED SOFTWARE.

     9.   Intellectual Property Indemnities.
          ---------------------------------

          9.1  NTI agrees to indemnify and defend at its own expense any and all
actions against Motorola based upon a claim that the Licensed Software infringes
an intellectual property right of a third party, and to pay damages and
reasonable costs paid or incurred by Motorola in any such action, provided that
NTI is notified promptly in writing of the action and at NTI's expense is given
exclusive control of said action and reasonable assistance for defense of same.

          9.2  If the Licensed Software becomes, or in NTI's opinion is likely
to become, the subject of a claim of infringement of an intellectual property
right, NTI may at its option and at no expense to Motorola: (i) obtain for
Motorola the right to continue using the Licensed Software in a manner
consistent with this Agreement, (ii) replace it or modify it to make it non-
infringing but functionally equivalent, or if neither (i) or (ii) is reasonably
available to NTI, (iii) terminate the Agreement. If the Licensed Software
becomes the subject of a claim of infringement of an intellectual property
right, Motorola may at its option obtain for itself a right to continue using
the Licensed Software; provided however (1) such right is obtained at no expense
or liability to NTI (including without limitation any obligations that NTI may
have to indemnify Motorola under the terms of this agreement) and (2) without
any admission of infringement or liability on the part of NTI, Motorola or other
user of the Licensed Software.

          9.3  NTI shall have no liability for any claim of intellectual
property right if the infringement arises from the use or combination of the
Licensed Software with programs not supplied by NTI, unless such programs are
necessary to use the Licensed Software or from the use of other than a current
unaltered release of the Licensed Software if such infringement would have been
avoided by the use of the current unaltered release of the Licensed Software.

          9.4  THE FOREGOING STATES THE ENTIRE LIABILITY OF NTI WITH RESPECT TO
INFRINGEMENT OF ANY PATENT, COPYRIGHT, TRADE SECRET OR OTHER PROPRIETARY RIGHT
OF A THIRD PARTY.

                                      -9-
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     10.  Term & Termination.
          ------------------

          10.1 Term. This Agreement will take effect on the Effective Date and
               ----
will remain in force until March 1, 2002 unless earlier terminated in accordance
with this Agreement ("Term One"). This Agreement shall be automatically renewed
for an additional one (1) year term ("Term Two"), unless Motorola provides
written notice to the other at least thirty (30) days prior to the end of Term
One of its intention not to renew the Agreement.

          10.2 Termination. Either party may, by written notice to the other,
               -----------
terminate this Agreement if any of the following events ("Termination Events")
occur:

                    (a)  Except as provided in Section 6.2 (which provides for
thirty (30) days prior written notice), either party is in material breach of
any material term of this Agreement, which breach is not cured within thirty
(30) days after written notice of such breach by the other party; or

                    (b)  A party (i) terminates or suspends its business, or
(ii) makes an assignment for the benefit of creditors in bankruptcy proceedings,
or (iii) becomes subject to direct control of a trustee, receiver or similar
authority, or (iv) becomes subject to any bankruptcy or insolvency proceeding
under federal or state statutes which is not dismissed within ninety (90) days.

          10.3 Survival.  Any termination of this Agreement will not affect
               --------
Sections 2.4, 2.5, 4, 5, 9, 10.3, 10.4 and 11, which shall survive the
termination or expiration of this Agreement.

          10.4 Return of Materials.  Within thirty (30) days after the date of
               -------------------
termination or discontinuance of this Agreement for any reason whatsoever,
Motorola shall return the Licensed Software and all copies, in whole or in part,
all documentation relating thereto, and any other Confidential Information
provided by NTI in its possession that is in tangible form, to NTI.

     11.  General.
          -------

          11.1 Publicity.  Unless approved in advance in writing, neither party
               ---------
shall use the other party's name or endorsement in connection with any publicity
regarding this Agreement, or sales and/or marketing of the Licensed Software
under this Agreement.

          11.2 Assignment.
               ----------

               11.2.1    Except as otherwise provided in Section 11.2.2, no
party may assign this Agreement or any of its rights or obligations hereunder
without the prior written consent of the other party, and any such attempted
assignment shall be void. Any attempted assignment, sale, transfer, lease,
conveyance, or license that conflicts with the terms of this paragraph and does
not comply within the provisions of Section 11.2.1 or 11.2.2 shall be void.

                                      -10-
<PAGE>

               11.2.2    Either party may assign this Agreement to a successor
in ownership of any of the related assets of the assigning party. The assigning
party shall only assign this Agreement to a successor that has expressly assumed
in writing the performance of all terms and conditions of this Agreement.

          11.3 Notices. Unless otherwise provided, any notice to be given
               -------
hereunder shall be effective when received. Such notice shall be sent by first
class mail, postage prepaid, and marked for delivery by Certified or Registered
mail, addressed to the parties listed below.

     For Motorola                              For NTI
     ------------                              -------
     Director of Networking and                Rich Mora
      Computing Systems Technology             Numerical Technologies, Inc.
     Semiconductor Products Sector             70 West Plumeria Drive
     3501 Ed Bluestein Boulevard M/D: K20      San Jose, CA 95134-2134
     Austin, TX 78721

     With a copy to:                           With a required copy to:
     --------------                            -----------------------
     Sector Intellectual Property Counsel      John Roos, Esq.
     Austin Intellectual Property Department   Wilson Sonsini Goodrich & Rosati
     7700 West Parmer Lane                     650 Page Mill Road
     Austin, TX 78729                          Palo Alto, CA 94304-1050
     512-996-6849                              650-493-9300

          11.4 Relationship of the Parties. It is expressly understood and
               ---------------------------
acknowledged that both parties are independent contractors, and that either
party and its employees or agents will not be construed as an employee, partner,
or joint venture of the other party. Each party does not undertake by this
Agreement or otherwise to perform any obligation of the other party, whether
regulatory or contractual, or to assume any responsibility for the other party's
business or operations. Each party will be solely responsible for any payroll-
related taxes related to its performance of this Agreement.

          11.5 Force Majeure.  In the event of any failure to comply with, or
               -------------
any delay in the performance of, the provisions of this Agreement where such
delay is caused by, or in any manner results from, events beyond the reasonable
control of the affected party, including but not limited to, acts of God, acts
of Government, acts of the public enemy, fires, floods, epidemics, quarantine
restrictions or freight embargoes, the affected party will be excused from
performance hereunder if and to the extent that such failure or delay could not
have been avoided by reasonable precautions. In the event of such failure or
delay, the affected party will give notice to the other party as soon as
practicable and will do everything reasonable to resume performance.

          11.6 Waivers.  A waiver of any default will not constitute a waiver of
               -------
any other or subsequent default. No waiver of any terms, conditions or
provisions of this Agreement will be effective unless it is in writing and
signed by the waiving party.

                                      -11-
<PAGE>

          11.7  Dispute Resolution.  Motorola and NTI will attempt to settle any
                ------------------
claim or controversy through consultation and negotiation in good faith and a
spirit of mutual cooperation. If those attempts fail, then the dispute will be
mediated under the rules of the American Arbitration Association, as may be
modified by the parties hereunder or in writing. Any dispute which cannot be
resolved through negotiation or mediation within six months of the date of the
initial demand by either party may then be finally resolved by the courts. The
use of any alternative dispute resolution procedure will not be construed under
the doctrines of laches, waiver or estoppel to affect adversely the rights of
either party. And nothing in this paragraph will prevent either party from
resorting to judicial proceedings if (a) good faith efforts to resolve the
dispute under these procedures have been unsuccessful or (b) injunctive or
equitable relief.

          11.8  Governing Law. The laws of the State of Delaware will govern any
                -------------
dispute related to this agreement (excluding its choice of law rules).

          11.9  Indemnification. Each party will indemnify and hold harmless the
                ---------------
other party, their directors, officers, employees, and agents from all loss and
liability on account of claims of personal injury, death, or property damage
resulting from any intentional, grossly negligent or negligent act or omission
by that party, its agents, or employees in the course of performing this
Agreement.

          11.10 LIMITATION OF LIABILITY. EACH PARTY'S AGGREGATE LIABILITY UNDER
                -----------------------
ANY AND ALL PROVISIONS OF THIS AGREEMENT SHALL BE LIMITED TO AN AMOUNT
EQUIVALENT TO THE TOTAL OF ALL FEES ACTUALLY PAID BY MOTOROLA TO NTI UNDER TIES
AGREEMENT.

          11.11 Compliance with Applicable Laws.  Each party warrants that its
                -------------------------------
obligations hereunder will be performed in compliance with all applicable laws,
rules and regulations, and that it will have obtained all permits required to
comply with such laws, rules and regulations.

          11.12 Further Assurances. At any time or from time to time on and
                ------------------
after the Effective Date of this Agreement, at the written request of one party,
the other party shall, in a reasonably prompt manner, (i) deliver such records,
data or other documents consistent with the provisions of this Agreement, (ii)
execute, and deliver or cause to be delivered, all such assignments, consents,
documents or further instruments of transfer or license and take or cause to be
taken all such other actions, as are reasonably necessary or desirable in order
for the requesting party to obtain the full benefits of this Agreement and the
transactions contemplated hereby. Each party shall use reasonable efforts to
make such requests so as not to cause an undue burden on the technical employees
of the other.

          11.13 Similar Agreements. Nothing in this Agreement shall be construed
                ------------------
as preventing either party from entering into similar agreements with other
companies, even if such agreements concern software similar to the Licensed
Software.

                                      -12-
<PAGE>

          11.14 Partial Invalidity. If any provision in this Agreement shall be
                ------------------
found or be held to be invalid or unenforceable in any jurisdiction in which
this Agreement is being performed, then the meaning of said provision shall be
construed, to the extent feasible, so as to render the provision enforceable,
and if no feasible interpretation would save such provision, it shall be severed
from the remainder of this Agreement which shall remain in full force and
effect. In such event, the parties shall negotiate, in good faith, a substitute,
valid and enforceable provision, which most nearly effects the parties' intent
in entering into this Agreement.

          11.15 No Implied Rights. Nothing contained in this Agreement shall be
                -----------------
construed as conferring by implication, estoppel or otherwise upon either party
hereunder any license or other right except the license and rights expressly
granted hereunder, including without limitation a patent license covering the
use of software other than the Licensed Software. Neither party is granted any
right, by implication or otherwise, to use any of the other party's trademarks,
except as may be authorized in writing.

          11.16 Entire Agreement. This Agreement represents the entire agreement
                ----------------
between the parties with respect to Licensed Software and supersedes all prior
negotiations and agreements, whether oral or written. This Agreement may be
amended only by a written instrument that specifically purports to do so and is
executed by the duly authorized representatives of both parties.

                                      -13-
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their duly authorized representatives.

MOTOROLA, INC.                               NUMERICAL TECHNOLOGIES, INC.

By: /s/ Michael E. Slomke for J. Duckworth   By: /s/ Richard Mora
    --------------------------------------       -------------------------------
               Signature                                     Signature

Name: Michael E. Slomke                      Name: Richard Mora
      ----------------------------                 -----------------------------
            Typed or Printed                              Typed or Printed

Title: Director, Global [illegible] Teams    Title: CFO
       ----------------------------------           ----------------------------

Date:  3/8/2000                              Date:  2/22/2000
       ---------------------------                  ----------------------------
<PAGE>

                                  APPENDIX A

                              SOFTWARE and SITES

     1.   "Licensed Software" means the object code version of NTI's phase-
shifting software solution known as "iN-Phase 3.2" (which includes the following
capabilities: (1) automated phase shift mask design for integrated circuits, (2)
automated optical proximity correction associated with phase shifting, (3)
automated silicon-level verification for phase-shifted and OPC layout designs,
(4) process simulation and analysis, and (5) automated OPC and phase shifting
rule generation) and all documentation related thereto, provided by NTI to
Motorola.

     On the Effective Date and subject to the terms and conditions of this
agreement (including without limitation, Section 2), Motorola shall have the
license rights to three (3) copies of the Licensed Software.  Thereafter, during
the term of this Agreement, in the event that Motorola wishes to obtain rights
to additional copies of the Licensed Software, upon mutual agreeable prices,
such additional Licensed Software provided to Motorola shall be subject to the
terms and conditions (including without limitation, license restrictions) set
forth in this Agreement.

          For the purpose of determining the number of Licensed Software that is
being used, the number of Licensed Software shall be measured in the number of
central processing units the Licensed Software is concurrently running on.  For
example, in the event the Licensed Software is being used on two Motorola
central processing units at a single Motorola facility concurrently, there are
two copies of the Licensed Software being used.  Likewise, in the event the
Licensed Software is run on a central processing unit located at Motorola
facilities in San Jose, CA and then later run on a central processing unit
located at Motorola facilities Austin, TX, but is at no time being run
concurrently at the two sites, such use would constitute a single Licensed
Software copy.

     2.   Patent License.  For the purposes of the Patent License pursuant to
Section 2 of this Agreement, the initial "Licensed Site" shall mean:

     Motorola's facility located at 3501 Ed Bluestein Blvd, Austin, TX 78721

          Thereafter, in accordance with Appendix B and other terms and
conditions of this Agreement, Motorola may designate additional Licensed Sites
upon payment of applicable fees and written notice to NTI of the address of such
additional Licensed Site.  Notwithstanding, Motorola's ARPDL facility and MOS-13
facility with an address of 3501 Ed Bluestein Blvd, Austin, TX 78721 shall
constitute a single Licensed Site for purposes of this Agreement.
<PAGE>

                                  APPENDIX B

                                     FEES

     1.   License Fees.  Subject to the terms of Section 4 below and other terms
          ------------
and conditions of this Agreement, Motorola shall pay the following amounts, on
the following schedule and be granted the following rights:

<TABLE>
<CAPTION>
------------------------------------------------------------------------------------------------------
              Term                            Term One                           Term Two
                                                                         (if contract is renewed)
------------------------------------------------------------------------------------------------------
<S>                                 <C>                                 <C>
License Rights (as limited in       (a)  Three (3) copies of the        (a)  Three (3) copies of the
the Agreement)                           Licensed Software                   Licensed Software

                                    (b)  One (1) Licensed Site.         (b)  One (1) Licensed Site.
------------------------------------------------------------------------------------------------------
Payment                             The amount of U.S. $   *            The amount of U.S. $  *
                                    for Term One.                       for Term Two.
------------------------------------------------------------------------------------------------------
Payment                             (a)  $    *      due no later       (a)  $   *    due by March 1,
Schedule                                 than 45 days after the signing      2002; and
                                         of this Agreement by both
                                         parties; and                   (b)  $   *    due by June 1,
                                                                             2002; and

                                    (b)  $   *       due by July 10,    (c)  $   *    due by September
                                         2000; and                           1, 2002; and

                                    (c)  $   *       due by October     (d)  $   *    due by December 1,
                                         10, 2000; and                       2002.

                                    (d)  $   *       due by January
                                         10, 2001; and

                                    (e)  $   *       due by April
                                         10, 2001; and

                                    (f)  $   *       due by July 10,
                                         2001; and

                                    (g)  $   *       due by October
                                         10, 2001; and

                                    (h)  $   *       due by January
                                         10, 2002.
------------------------------------------------------------------------------------------------------
</TABLE>

     For the purposes of this Addendum B, "Term One" means the period of time
                                           --------
from the Effective Date up to the second anniversary of the Effective Date of
the Agreement (March 1, 2002),

* Certain information on this page has been omitted and filed separately with
the Commission. Confidential treatment has been requested with respect to the
omitted portions.

<PAGE>

"Term Two" means the period of time from the second anniversary of the Effective
 --------
Date up to the third anniversary of the Effective Date.

     2.   Additional License.  If during the term of this Agreement, Motorola
          ------------------
wishes (in its discretion) to obtain license rights for additional sites or
additional Licensed Software, the parties shall agree upon mutually acceptable
commercially reasonable prices and terms.

     3.   Transfer Fee.  If during the course of this Agreement, Motorola wishes
          ------------
to transfer its Patent License rights under Section 2.2 from one Licensed Site
to a separate Licensed Site, Motorola may do so provided the following
conditions are first met: (1) Motorola provides prompt written notice to NTI,
and (2) Motorola pays NTI an additional License Fee of U.S. $ * if such
transfer results in the concurrent use of the Licensed Site, and (3) such
concurrent use of the Licensed Sites during the transfer period does not
continue (in the aggregate) for more than ninety (90) days in any calendar year.
In the event that Motorola wishes to use such additional Licensed Site for more
than ninety (90) days during the period of transfer, it must obtain NTI's prior
written approval and may be subject to additional fees.

     4.   Peak Use Fee.  If during the course of this Agreement, Motorola wishes
          ------------
to temporarily add a Licensed Site to meet peak use needs, Motorola may do so
provided the following conditions are first met: (1) Motorola provides prompt
written notice to NTI, and (2) Motorola pays NTI an additional License Fee of
U.S. $ * for each such licensed Site, and (3) such use of the additional
Licensed Sites does not continue (in the aggregate) for more than ninety  (90)
days.  In the event that Motorola wishes to use such additional Licensed Site
for more than ninety (90) days in any calendar year, it must seek NTI's prior
written approval and may be subject to additional fees.

* Certain information on this page has been omitted and filed separately with
the Commission. Confidential treatment has been requested with respect to the
omitted portions.

                                      -2-Exhibit 10.58

                   DISTRIBUTION AGREEMENT

     This Agreement is made this 17th day of January, 2000,by and between
Centigram Communications Corporation, a Delaware corporation having its
principal office at 91 East Tasman Drive, San Jose, CA  95134 (hereinafter
"Distributor") and Voice Systems Technology, Inc. d/b/a Boston Communications
Group, a Delaware corporation having its principal office at 621 East Fourth
Street, Tulsa, OK 74120-3017 (hereinafter "BCGI").

     WHEREAS, BCGI designs, manufactures, and supplies telecommunications
systems and services; and

     WHEREAS, Distributor desires to purchase such systems and services from
BCGI for sale on a non-exclusive basis.

     NOW, THEREFORE, in consideration of the foregoing, and other good and
valuable consideration, the receipt and sufficiency of which both parties
acknowledge, the parties agree as follows:

     1.   TERRITORY

     During the term of this Agreement, Distributor shall have the nonexclusive
right to sell BCGI Products and Services (as the terms are defined below) to
customer segments and in market area(s) as described in Exhibit A which is
attached hereto and made a part hereof (the "Territory").

     2.   PRODUCTS

     During the term of this Agreement BCGI shall provide the products and
services (the "Products and Services") set forth in Exhibit B which is attached
hereto and made a part hereof to Distributor for sale and distribution in the
Territory.  Each sale of Products and Services shall be subject to the terms
and conditions of this Agreement.

     3.   PRICES

     During the term of this Agreement BCGI shall provide and bill the Products
and Services to the Distributor at the prices and applicable discounts
("Prices") as set forth in Exhibit C which is attached hereto and made a part
hereof.

     All prices paid by Distributor under this Agreement do not include any
federal, state or local sales or excise taxes, foreign taxes, import duties,
customs fees, value added taxes, etc. (with the exception of taxes imposed upon
or measured by BCGI's income) which shall be the responsibility of Distributor
or Distributor's agents.

     4.   TERMS OF SHIPMENT

     During the term of this Agreement BCGI shall provide the Products and
Services to Distributor in accordance with the shipping terms and conditions
("Terms of Shipment") as set forth in Exhibit D which is attached hereto and
made a part hereof.

[Information marked with a "*" has been omitted pursuant to a request for
confidential treatment.  This information has been filed separately with the
Secretary of the Securities Exchange Commission.]

<PAGE>

     5.   PAYMENT

     During the term of this Agreement, Distributor shall comply with the
payment terms as outlined in Exhibit E which is attached hereto and made a
part hereof.

     6.   TERM

     This Agreement shall be effective on the date hereof (the "Commencement
Date") and shall continue for an initial term ("Term") of three (3) years.
This Agreement shall be automatically renewed in one-(1) year increments,
thereafter.  However, either party hereto may terminate this Agreement as of
the end of the Term, or as of the end of any one (1)-year renewal term, with
six (6) months' notice in writing to the other party to such effect.

     7.   WARRANTY

     The Products are subject to the terms of the BCGI Standard Warranty, a
copy of which is attached to this Agreement as Exhibit F which is attached
hereto and made a part hereof.

     8.   MAINTENANCE AND SUPPORT SERVICES

     Pursuant to its standard maintenance agreement, BCGI will offer Distributor
maintenance and support services ("Maintenance and Support Services") for the
Products at BCGI's then current Preferred Prices, as the term is defined in
Section 39. below, and are described in Exhibit G which is attached hereto and
made a part hereof.

     9.   DISTRIBUTOR RESPONSIBILITIES

     During the term of this Agreement, Distributor shall have the specific
additional responsibilities ("Distributor Responsibilities") as described in
Exhibit H which is attached hereto and made a part hereof.

     10.  BCGI RESPONSIBILITIES

     During the term of this Agreement, BCGI shall have the specific additional
responsibilities ("BCGI Responsibilities") as described in Exhibit I which is
attached hereto and made a part hereof.

     11.  TERMINATION

     A.   Termination for Breach.  If either party hereto materially defaults
in the performance of, or fails to perform, any of its material obligations
under this Agreement and fails to cure such default within thirty (30) days
after receiving written notice of the default, the non-defaulting party shall
have the right to terminate this Agreement at any time.

     B.   Termination for Insolvency.  Either party hereto may terminate this

Agreement, effective immediately upon written notice, if the other party becomes
the subject of a voluntary or involuntary petition in bankruptcy or any
proceeding relating to insolvency, receivership, liquidation or composition for
the benefit of creditors, if that petition or proceeding is not dismissed with
prejudice within sixty (60) days after filing.

<PAGE>

     C.   Termination for Breach of Confidentiality Obligations.  Either party
hereto may terminate this Agreement, effective immediately upon written notice,
if the other breaches its obligations as set out in Section 13. below.

     D.   Survival of Provisions.  Sections 7., 8. (provided Distributor is not
in default of payments due to BCGI and shall continue to pay any amounts due for
the provision of Maintenance and Support Services under such Section 8.), 13.,
14., and 30. shall survive the cancellation or termination of this Agreement
for any reason.

     12.  INDEMNIFICATION AND LIMITATION OF LIABILITY

     A. Indemnification.  Each party to this Agreement hereby agrees to
indemnify, defend and otherwise hold the other harmless from and against all
suits, claims and any other losses (any of the foregoing, a "Loss"), including
but not limited to attorneys' fees, that arise from or are in any way related
to the Services or this Agreement, but only to the extent that such Loss
results directly from the gross negligence, willful misconduct or fraudulent
act of or by the party obligated to indemnify, and does not result proximately
from the gross negligence, willful misconduct or fraudulent act of or by the
party seeking indemnification. In the event a party receives notice of any
action or event which would give rise to the indemnification obligations
contained herein, such party shall within twenty (20) days of receipt of such
notice, notify the other of the occurrence of such action or event, as the case
may be; provided, however, that the indemnitor's failure to receive such notice
shall not relieve it of its obligation to provide such indemnity except to the
extent such failure prejudices the indemnitor's ability to avoid liability under
this Section 12.  Upon receipt of such notice, the indemnifying party shall
immediately take all actions necessary to protect the indemnitee's interests
and to defend, settle or otherwise resolve such Loss.

     B.   Limitation of Liability. EXCEPT AS SET FORTH IN SECTION 12.A. ABOVE,
EACH PARTY'S MAXIMUM AGGREGATE LIABILITY ARISING OUT OF THIS AGREEMENT AND/OR
SALE OF THE PRODUCTS AND SERVICES, AND ANY CLAIMS RELATED THERETO, SHALL BE
LIMITED TO DIRECT DAMAGES SUFFERED BY THE OTHER PARTY AND SHALL BE LIMITED TO
A REFUND OF THE PURCHASE PRICE OF THE PRODUCTS AND SERVICES (PRORATED OVER A
THIRTY-SIX [36] MONTH TERM) WHICH SHALL THEN HAVE BEEN PAID BY DISTRIBUTOR
UNDER THIS AGREEMENT.  IN NO EVENT SHALL EITHER PARTY HERETO HAVE ANY LIABILITY
TO THE OTHER FOR ANY LOST PROFITS, LOSS OF DATA OR COSTS OF PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES INCURRED BY THE OTHER, OR FOR ANY SPECIAL,
INDIRECT, OR CONSEQUENTIAL DAMAGES INCURRED BY THE OTHER ARISING OUT OF THIS
AGREEMENT, HOWEVER CAUSED AND UNDER ANY THEORY OF LIABILITY, WHETHER OR NOT
THE OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH LOSS, INCLUDING,
WITHOUT LIMITATION, THOSE RESULTING FROM THE USE OF PRODUCTS AND SERVICES
PURCHASED HEREUNDER, OR THE FAILURE OF THE PRODUCTS OR SERVICES TO PERFORM, OR
FOR ANY OTHER REASON. THESE LIMITATIONS SHALL APPLY NOTWITHSTANDING THE FAILURE
OF THE ESSENTIAL PURPOSE OF ANY LIMITED REMEDY. NOTWITHSTANDING THE FOREGOING,

<PAGE>

THE TERMS OF THIS SECTION 12. SHALL NOT APPLY TO ANY LIABILITY OF ONE PARTY TO
THE OTHER WHICH MAY ARISE UNDER SECTION 13. BELOW, OR TO ANY LIABILITY WHICH
BCGI MAY HAVE TO DISTRIBUTOR UNDER SECTION 30. BELOW.

     13.  NONDISCLOSURE

     A.   Nondisclosure.  Neither party hereto shall, directly or indirectly,
divulge or communicate, to any other person or entity, any confidential
information concerning any matters affecting or relating to the business of
the other party.  This nondisclosure obligation applies, but is not limited to,
software, documentation, data, pricing, methods of operation, or other
proprietary information which is identified at the time of disclosure as being
confidential information.  The parties hereto stipulate that as between them,
this information is important, material and confidential and gravely affects
the success of the business of the parties. This obligation shall not apply to
information which: (i) is or becomes a part of the public domain through the
act or omission of the disclosing party; (ii) was in the receiving party's
lawful possession prior to such disclosure; or (iii) is required to be disclosed
pursuant to subpoena or other legal process; provided, however, that the
receiving party first provides written notice to the disclosing party of the
request. Any breach of the terms of this Section 13.A. shall be a material
breach of this Agreement.  This Section 13.A. shall survive the termination
of the business relationship between the parties for any reason.

     B.   Promotion.  Notwithstanding Section 13.A, the parties hereto may
disclose the existence and general nature of this contractual relationship for
marketing purposes only.

     14.       SOFTWARE LICENSE

     A.   License.  BCGI hereby grants to Distributor, and Distributor accepts,
a nonexclusive, nontransferable right and license to:

          (i)  use the software included in the Product ("Software")
     and the associated documentation to facilitate Distributor's
     selling and servicing the Products to its customers in the
     Territory in accordance with this Agreement; and

          (ii) revise the documentation associated with the Product so
     as to refer to Distributor as the distributor of the Product
     ("Revised Documentation").  To facilitate these revisions,
     BCGI agrees to provide Distributor with any/all "soft"
     copies of such documentation, and to provide all reasonable
     assistance in effecting any such revisions.  All rights,
     title and interest in and to such Revised Documentation
     shall immediately vest in BCGI; and

          (iii)     sublicense the Software and the associated
     documentation to its customers in the Territory in
     accordance with this Agreement.

     Distributor acknowledges that it and its customers will receive only the
object code of the Software and will not receive nor be entitled to materials
exclusively associated with the design and creation of the Software.

<PAGE>

     The Software is proprietary to BCGI and/or its supplier(s), and shall at
all times remain the sole and absolute property of BCGI and/or its supplier(s).
Distributor shall not have any interest in the Software except for the license
to use the Software and the associated documentation to facilitate the selling
and servicing of the Products and to sublicense the Software and the associated
documentation.

     B.   Permission to Copy. Distributor shall not (and shall not allow its
customers to) copy, in whole or in part, any Software or the associated
documentation, whether in the form of computer tape, disk, print, or any other
form; provided, however, that Distributor may (and Distributor may allow each
of its customers to) make one (1) copy of the Software only for archival backup
purposes in conjunction with Distributor's selling and servicing of the Products
and customers' use of the Products.  Distributor agrees that it will (and it
will require its customers to) affix to the back-up copy of the Software, the
copyright notice and other proprietary notices mutually agreed by BCGI and
Distributor.

     C.        Sublicensing.  Any distribution of the Products by Distributor
to its customers shall be effected only by a written agreement between
Distributor and its customers to contain, at a minimum, software licensing
terms and conditions and obligations of confidentiality which are at least as
limiting and protective as such terms are set out in this Agreement.  Upon
BCGI's request, Distributorshall make copies of the portions of such
agreements which regard software licensing and confidentiality available to
BCGI for BCGI's review.

     15.  TITLE TO THE PRODUCT

     A. Software.  Any and all software provided to Distributor by BCGI
pursuant to this Agreement shall remain the property of BCGI, which retains
all rights, title and interest in said software, including all derivative
works prepared from the software, and any enhancements or modifications
thereto, whether made by BCGI or Distributor.

     B.   Hardware.  Title to the hardware included in the Product shall pass
to Distributor and delivery is deemed to occur upon BCGI's delivery of the
Product to the commercial carrier F.O.B. point of shipment.  In all cases,
risk of loss or damage in transit shall fall upon Distributor, whose
responsibility it shall be to file claims with the carrier. Unless BCGI
receives specific shipping instructions from Distributor, BCGI will exercise
its own discretion in the selection of the method of shipment.  BCGI shall
have and retain a purchase money security interest in and to each Product
sold to Distributor until such time as BCGI has received payment in full
for each such Product.  Distributor shall, and shall cause its customers
to, execute any/all documents as may be necessary for BCGI to perfect or
enforce such security interest(s).

     16.  ASSIGNMENT

     This Agreement may not be assigned by either party hereto, in whole or in
part, unless the express written consent of the other party has been obtained
prior to any assignment; such consent shall not be unreasonably delayed or
withheld.

<PAGE>

     Notwithstanding the foregoing, should either party hereto be acquired by
or merged into another entity, this Agreement will survive and shall
automatically be assigned to the acquiring/resulting entity.  However, either
party hereto may terminate this Agreement in the event of such an acquisition
or merger by giving the other party hereto no less than a ninety (90)-day
written notice to such effect.

<PAGE>

     17.  NOTICES

     All notices pursuant to this Agreement shall be in writing and shall be
delivered by hand or sent by registered or certified mail, return receipt
requested, to the addresses as set forth below.  If mailed, notices will be
deemed effective three (3) days after mailing, postage prepaid, in the United
States.

As to Distributor:                                               As to BCGI:

Centigram Communications CorporationBoston Communications Group
Attn:  Senior Director Legal Affairs       Attn:  Gary Eubanks
91 East Tasman Drive                    621 East Fourth Street
San Jose, CA  95134                       Tulsa, OK 74120-3017
Tel #:  (408) 428-3890                   Tel #: (918) 582-8781
Fax #:  (408) 432-2645                   Fax #: (918) 582-8782

                                 With a copy to:

                                 Boston Communications Group
                                 Attn:  General Counsel
                                 100 Sylvan Road, Suite 100
                                 Woburn, MA  01801
                                 Tel #:  (617) 692-7000
                                 Fax #:  (617) 692-6230

     18.  CUMULATIVE RIGHTS

     The rights and remedies reserved to the parties herein are cumulative and
in addition to any further rights and remedies available at law or in equity.

     19.  APPLICABLE LAW

     This Agreement shall be deemed to have been entered into in the State of
Oklahoma and shall be governed by, construed and interpreted in accordance with
the laws of the State of Oklahoma.

     20.  INTERPRETATION

     This Agreement, together with any Exhibits or Attachments hereto, and any
subsequent amendments hereto, and nondisclosure agreements entered into between
the parties, contains the entire agreement between the parties hereto with
respect to the subject matter hereof, and supersedes all existing agreements,
prior negotiations and representations by or between them, whether oral or
written,and all prior or contemporaneous agreements, whether oral or written
regarding the subject matter of this Agreement. This Agreement may be amended
from time to time only by written agreement signed by a duly authorized
representative of both parties hereto.  The headings used in this Agreement are
for the convenience of the parties hereto and are not deemed to be part of this
Agreement.

<PAGE>

     21.  SEVERABILITY

     If any portion of this Agreement is found to be invalid, illegal or
unenforceable, the parties agree that the remaining portions shall remain in
effect.  The parties further agree that in the event such invalid or
unenforceable portion is an essential part of this Agreement, they shall
promptly commence negotiations, in good faith, for its replacement with a
substitute provision which most clearly reflects the original intent for
entering into this Agreement.

     22.  WAIVER

     No delay or omission to exercise any right or remedy accruing to BCGI or
Distributor hereunder upon any breach or breaches or event of default or
defaults by BCGI or Distributor shall impair any right or remedy of any
subsequent breach or default of the same, or any different, breach or default.

     23.  SCOPE

     Nothing contained herein shall be construed to constitute the parties
hereto as partners, joint venturers or as agents of each other, but the
relationship shall be one of independent contractors with BCGI providing the
Services described hereunder to Distributor for the consideration set forth
in this Agreement and any Exhibits/Attachments hereto.

     24.  BENEFIT

     This Agreement and the rights granted are solely for the benefit of the
parties hereto, their successors and assigns.  No third person shall acquire
any rights or claims by reason of or under this Agreement, except as both
parties hereto shall agree in writing, or in cases as set out in Section 15.
above.

     25.  FORCE MAJEURE

     No default in performance of any obligation hereunder shall constitute
an event of default or a breach of this Agreement, to the extent that such
failure to perform, delay or other default arises out of a cause that is
beyond the reasonable control and without negligence of the party otherwise
chargeable with such default, including, but not limited to, acts of God,
interruption of power, utility, transportation or communications services,
action of civil or military authority, sabotage, national emergencies or
catastrophe.  Either party desiring to rely upon any of the foregoing as an
excuse for default shall give to the other party prompt written notice of the
facts which constitute such excuse, and when such excuse ceases to exist,
prompt notice thereof to the other party.  This Section shall in no way limit
the right of either party to make any claim against any third party for any
damages suffered due to said causes.

     26.  ARBITRATION

     Except for any disputes which may arise pertaining to Section 13.A. above,
all disputes between the parties, their successors and assigns, arising under
this Agreement, not involving injunctive relief, which have not been resolved
within thirty (30) days after notice by one party to the other of such dispute
in the manner set forth above, shall conclusively and finally be settled by

<PAGE>

arbitration in accordance with the Commercial Arbitration rules of the American
Arbitration Association then obtaining.  Either party may institute arbitration
by giving written notice to the other party of intention to arbitrate, which
noticeshall contain the name of the arbitrator selected by the party, the
nature of the controversy, the amount involved, if any, the remedies sought,
and any other pertinent matter. Within fifteen (15) days after the giving of
such notice, the other party shall submit to the initiating party the name of
an arbitrator whom it has appointed and may submit an answering statement.
Within fifteen (15) days thereafter the two (2) arbitrators so appointed shall
select a third arbitrator.  If any party fails to choose an arbitrator within
the fifteen (15)-day period herein provided, or if the arbitrators appointed
by the parties cannot agree on the other arbitrator within fifteen (15) days
of the appointment of the second arbitrator, such arbitrator(s) shall be
appointed by the American Arbitration Association.  The arbitration hearings
shall be held, unless otherwise mutually agreed upon by the parties, in Tulsa,
Oklahoma. Any decision or award signed by at least two (2) of the arbitrators
shall be final and binding upon the parties and may be entered in any court
having jurisdiction thereof. The losing party agrees to pay to the prevailing
party reasonable attorney's fees and costs awarded in such arbitration.

     27.  CUSTOMS, DUTIES, IMPORT OR EXPORT LICENSES

     As the Territory is located outside of the United States, all customs,
dutiesand other governmental charges attributable to export or the import of
BCGI Products by Distributor shall be paid by Distributor.  If export or import
of BCGI Products requires a license or approval by governmental authorities,
acceptance or shipment of any order shall be subject to the issue of such
license or approval by the appropriate governmental agency having jurisdiction
thereof.

     28.  COMPLIANCE WITH UNITED STATES EXPORT LAWS

     BCGI and Distributor understand and agree as follows:

     A. Distribution or re-export by Distributor of the Products to any country
other than the country authorized as part of the Territory is strictly forbidden
and may constitute a violation of United States ("U.S.") law. Exports of the
Products from the Territory may require prior U.S. governmental approval.

     B. Distributor hereby agrees that it will abide by U.S. export laws and
regulations that apply to the distribution of the Products, including any and
all U.S. Department of Commerce regulations under 15 C.F.R. 373.3 (governing
Distribution licenses).  Distributor shall consult BCGI on all matters that
may involve controlled exports under U.S. laws.

     C. Distributor agrees to retain for a period of at least two (2) years and
to make available for inspection by the U.S. Office of Export Administration
or other U.S. government agency all records of any sales or re-export of the
Products by Distributor and all other forms, documents, correspondence,
memoranda, books or other records relating to sales of the Products by
Distributor.

     D. Distributor agrees not to sell, re-export, or otherwise transfer any
Product if Distributor has reason to know that the Product will be delivered
or re-exported to unauthorized destinations or end-users.

<PAGE>

     E. Distributor certifies that it will not drop-ship any Product unless it
is being sent to an authorized customer in the Territory.

     29.  COMPLIANCE WITH OTHER LAWS

     Each party agrees to comply with all laws and governmental regulations
applicable to the conduct of its business and the performance of its
obligations under this Agreement.

     30.  INFRINGEMENT INDEMNIFICATION

     Distributor shall promptly notify BCGI if any person or entity claims that
any Product infringes any patent, copyright or other right of any third party.
BCGI shall at its expense defend, indemnify and hold harmless Distributor and
its customers against any suit, proceeding or claim brought against Distributor
and/or its customers to the extent it is based on a claim that any Product
furnished hereunder constitutes an infringement of any patent, copyright or
the intellectual property rights of any third party in the Territory, provided
that: (i) BCGI is promptly informed in writing and furnished a copy of each
communication, notice or other action relating to the alleged breach or
infringement; (ii) BCGI shall have control over the defense and negotiations
for a settlement or compromise; (iii) BCGI is given, by Distributor and its
customers, all reasonable authority, information and assistance (at BCGI's
expense) necessary to defend or settle such suit or proceeding; and (iv)
Distributor or its customers incurs no obligation or liability without the
prior writing consent of BCGI.  The foregoing obligation of BCGI does not apply
to any Product or portion or component thereof: (a) which is modified by persons
or entities other than BCGI (or persons or entities employed or contracted by
BCGI) if the alleged infringement relates to such modification; or (b) which
is combined with other products, processes or materials not supplied or
recommended by BCGI where the alleged infringement relates to such combination.
If the event that any Product is held to constitute such an infringement, BCGI
shall, at its option, either: (i) procure for Distributor and its customers
the right to continue to use the applicable Product; (ii) replace or modify the
applicable Product so it becomes non-infringing; or (iii) remove the Product
and refund Distributor the undepreciated portion of the Price paid by
Distributor for such Product, assuming a thirty-six (36)-month straight-line
depreciationschedule.  This Section states the entire liability of BCGI with
respect to infringement of any copyrights, patents, or other intellectual
property rights by the Products.

     31.  FINDER'S FEE

     In the event that the end user customer or BCGI desires to have a direct
sale, leasing or service bureau relationship with each other, and if
Distributor has provided the customer lead (as mutually agreed upon between
BCGI and Distributor), BCGI will pay Distributor a finder's fee ("Finder's Fee")
equal to ten percent (10%) of the fee BCGI charges such end user customer for
such Product.  Such Finder's Fee(s) will be due to Distributor upon BCGI's
shipping the Product to such end user customer and payable to Distributor
within forty-five (45) days from the date of such shipment.  BCGI agrees to
notify Distributor, in writing, each time BCGI so enters into an agreement with
any such end user customer, and to keep Distributor advised as to the planned
and actual shipment date for such Product(s). This Finder's Fee arrangement
will apply to the Territory, and only for the Products (excluding custom
development or Services).

<PAGE>

     32.  FUTURE RELATIONSHIP(S)

     It is the intent of both parties hereto to transition toward a business
relationship as described in Phases 2, 3 and 4 below.  The timing of such a
transition would be subject to mutual agreement by the parties hereto and may
require separate, negotiated agreements and or amendments and/or addenda to
this Agreement.

     Phase 2:  Distributor would resell BCGI's then-existing prepaid
application and database platform, but would use industry-standard Voice Node
and Database hardware components directly purchased by Distributor.  In this
scenario, Distributor would pay BCGI a license fee for theBCGI software
applications and documentation and purchase any unique BCGI hardware components.
Distributor would be responsible for integration, final assembly and testing of
the systems.  Distributor would also be responsible for BCGI's costs in
shipping all software, documentation and unique components to Distributor's
San Jose facility.

     Phase 3:  Distributor would resell BCGI's then-existing prepaid application
that would utilize Distributor's Series 6 product platform as the voice node.
BCGI would assist Distributor in interfacing BCGI's database platform to
Distributor's voice node.  Distributor would continue to use industry standard
hardware components for the database platform.  In this scenario, Distributor
would pay BCGI a license fee for the BCGI software applications and
documentation and purchase any unique BCGI hardware components.  Additionally,
this scenario would require Distributor and BCGI to undertake joint research
and development.  Further agreement as to ownership and marketing rights
regarding such joint research and development would be addressed by the parties.
Distributor would be responsible for integration, final assembly and testing of
the systems.  BCGI would be responsible for shipping all software, documentation
and unique components to Distributor's San Jose facility.

     Phase 4:  WIN Platform.  Both parties hereto agree to work jointly to
determine, under a separate agreement, a WIN-based BCGI-Distributor prepaid
offering.

     33.       F.C.C. CERTIFICATION

     BCGI agrees that, at the time of shipment, all Products sold to Distributor
hereunder shall, when required, be in compliance with Parts 15 and 68 of the
United States FederalCommunications Commission's Rules and Regulations.
Distributor is responsible to obtain all local type approvals when required to
install, maintain and connect to the public telephone network.  BCGI agrees to
cooperate with Distributor to secure all such approvals.

     34.  LIMITATION

     No action, regardless of form, arising out of or related to this Agreement,
may be brought by either party more than one (1) year after the cause of action
has accrued.

     35.  LICENSING OF SOFTWARE

     All references herein to the "sale" of software (or to the "sale" of
Products, to the extent Products incorporate software) shall mean solely the

<PAGE>

grant of a license to use the software on the terms set forth herein.  All
references to the "purchase" of software (or to the "purchase" of Products, to
the extent Products incorporate software) shall mean solely the obtaining of a
license to use the software on the terms set forth herein.

     36.  BRANDING

     BCGI and Distributor agree to co-brand the Prepaid System under a
trademark to be mutually agreed upon.

     37.  ORDER OF PRECEDENCE

     Should the terms and conditions of any Exhibit to this Agreement conflict
with the terms and conditions of the principal portion of this Agreement, the
terms and conditions of the principal portion of this Agreement shall govern

     38.  NON-SOLICITATION

     Each party hereto acknowledges that the other party has spent considerable
time and effort building expertise in prepaid wireless technology and that the
loss of an employee would harm such party.  Therefore, each party hereto agrees
that during the term of this Agreement it will not solicit the employment of
any then-current or previous employee of the other party ("Employer") unless
a period of six (6) months has elapsed from the last date that such employee
was employed by such Employer, without the prior written consent of such
Employer.

     39.  MOST FAVORED CUSTOMER

     In the event that BCGI shall enter into any agreement with any other
person, firm or corporation which provides lower prices for the same products
and services provided by this Agreement for comparable volumes and upon
comparable terms and conditions as those contained herein ("Preferred Prices"),
Distributor shall have full right and power to avail itself of such prices as
if the same were written into this Agreement; and BCGI agrees to notify
Distributor promptly of any such other agreement.

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed by their respective executive officers being hereunto duly
authorized.

BCGI                             Distributor:

By:/s/ Bill Hampton                           By: /s/ Thomas E. Burton

Name:Bill Hampton                               Name: Thomas E. Burton

Title: VP of Operations                                 Title:

Date: January 17, 2000                  Date: January 11, 2000

<PAGE>

DISTRIBUTION AGREEMENT

Exhibit A

Territory

The "Territory" is:

         North America - United States and Canada (for any wireline or
       wireless customer mutually agreed upon on a case by case basis);
       and

        The remainder of the world outside of North America

<PAGE>

DISTRIBUTION AGREEMENT

Exhibit B

Products and Services

The Products and Services covered by this Agreement include
the following:

         BCGI's existing Prepaid Systems (including software applications,
       voice node and other hardware components, and database platform, but
       excluding Prepaid Connection.)

         Custom development of BCGI Prepaid System features and functionality,
       as set out in Exhibit C, Section II.

         Tier 2 Maintenance and Support services (as described in Exhibit G
       below) during the Warranty and Post-Warranty period.

<PAGE>

DISTRIBUTION AGREEMENT

Exhibit C

Pricing

I.   Products

         The prices which Distributor shall pay BCGI for the Products are set
       forth in the price list which begins on the following page and is
       incorporated into this Exhibit C.

         Prices are subject to change during the Term by mutual, negotiated
       agreement of the parties.  However, prices will not change within ninety
       (90) days from any previous change, any price increases will not become
       effective until ninety (90) days from the date BCGI notifies Distributor
       in writing, and any price decreases will become effective on the day
       BCGI notifies Distributor in writing.

II.  Custom Development Services

         Prices shall be based on scope of work provided by the Distributor
       and/or its end user customer or sub-distributor.

         Prices shall be based on the development time required and prevailing
       BCGI hourly rates and other charges.  Such rates and charges shall be
       provided to Distributor at the then current Preferred Prices.  See the
       attached current price list for the initial rates.

III. Tier 2 Maintenance and Support Services

         During the warranty period, such Tier 2 maintenance and support
       Services will be provided to Distributor by BCGI at no charge.
       Subsequent to the warranty period, any and all such Services requested
       by Distributor will be provided by BCGI at prices equal to BCGI's then
       current Preferred Prices.  See the attached current price list for the
       initial rates.

<PAGE>
                                 PRICE LIST

                                                             *
 BCGI Part                     Description            BCGI List  Centigram
    Number                                                         Cost

               Hardware
TSC-99         Tri-Server                                  *          *
BMS-R1         Base Mini-Server                            *          *
DMS-R2         Dual Mini-Server                            *          *
RES-200-5-256  Responder (200/5.0gig IDE 256 ram)          *          *
TIN-200-5-128  TIN's IDE (200/5.0 gig IDE 128 ram)         *          *
ST-RAS-5-128   Spare TIN's IDE (200/5.0 gig IDE 128 ram)   *          *
                & RAS Server
9GB-TNRD-SCSI  TIN SCSI Non-Redundant Data                 *          *
               (200/9.0x1 128 ram)
9GB-STNRD-200  Spare TIN SCSI Non-Redundant Data           *          *
               (200/9.0x1 128 ram)
4.5-SCSI-TRD   TIN SCSI Redundant Data                     *          *
               (200/4.5x2 128 ram)
4.5-200-STRD   Spare TIN SCSI Redundant Data               *          *
               (200/4.5x2 128 ram)
TRD-SCSI-9GB   TIN SCSI Redundant Data                     *          *
               (200/9.0x2 128 ram)
STRD-200-9GB   Spare TIN SCSI Redundant Data               *          *
               (200/9.0x2 128 ram)
99-0831-015    D480 2xT1                                   *          *
99-0831-015    D480 2xT1 N+1 (Spares)                      *          *
ADC-DAM        Admin Cabinet                               *          *
EXC-DAM        Expansion Cabinet                           *          *
99-2123-101    D300 2xE1                                   *          *
99-2123-101    D300 2xE1 N+1 (Spares)                      *          *
460RC          Balun Panel                                 *          *
460F           Baluns with cables                          *          *
HC-ANI99       Hydra Cable                                 *          *
VL400          14" SVGA Monitor                            *          *
CHAT-40108-519 Monitor Shelf                               *          *
SHL-KBD        RackMount Keyboard/mouse                    *          *
AS/O-99        Arc Servit w Oracle option                  *          *
242456-001     Dlt Backup 15/30 with 2 tapes               *          *
BCA0026        Filler Panels                               *          *
1654-48-120-60-P  Wilmore Power Supply                     *          *
02164-01       Heatshield                                  *          *
ALSX-6         Seismic install kit                         *          *
CHAT-46353515  Chatsworth Rack                             *          *
3C16670A       Hub 10 base                                 *          *
3C16981        12 port Switch                              *          *
3C16980        24 Port switch                              *          *
729797         Jazz Drive 2 gig w (1) 2 gig cartridge      *          *
010-0B13-ND-5CON  Oracle 8 (5) concurrent                  *          *
O8E-WG-8CON    Oracle 8 (8) concurrent                     *          *
SVX-16U/LDG    16 position continuity switch               *          *
KVM-4UPA       4 position continuity switch                *          *
PP-RK-9909     Rackmount Kit                               *          *
99-3473-001    SS7 Card                                    *          *
99-3477-001    SIU 131                                     *          *
99-3482-001    SIU 231                                     *          *

[Information marked with a "*" has been omitted pursuant to a request for
confidential treatment.  This information has been filed with the secretary
of the Securities Exchange Commissionb.]

<PAGE>

SHL-S20        Rack Adapter                                *          *
PACK-DAMAC     Packaging & Freight                         *          *

           Software
PPD301000  PrePaid Software, per port, 1-1199 ports        *          *
PPD301000  PrePaid Software, per port, 1200-2159 ports     *          *
PPD301000  PrePaid Software, per port, 2160 +++ ports      *          *
CCD301000  Calling Card Software, per  port add-on                    *
TLS301000  TLS Software, per port add-on                   *

           Services
TBD        Custom Languages  -  BCGI records prompts                  *
TBD        Custom Languages  -  customer records prompts              *
TBD        Training  (per person per day, not including T&E)*         *
TBD        Installation  (quoted case-by-case)
TBD        Annual Support Fee  (price per  port)                      *

TBD        Post Warranty Maintenance (annual %)                       *
                      2nd/or 3rd year only

[Information marked with a "*" has been omitted pursuant to a request for
confidential treatment.  This information has been filed separately with the
secretary of the Securities Exchange Commission.]

<PAGE>

                   DISTRIBUTION AGREEMENT

                          Exhibit D

                      Terms of Shipment

I.   All shipments made by BCGI under this Agreement are FOB Tulsa, Oklahoma.

II.  The provision of all shipping instructions for BCGI to adhere to shall be
the responsibility of Distributor.  The Products will be shipped directly from
BCGI to the end user customer of Distributor or Distributor's sub-distributor
unless specified otherwise in the System Sale Agreement.

III. All transportation, rigging and draying charges are the responsibility of
Distributor.

IV.  The time schedule between BCGI's receipt of an order from Distributor and
BCGI's shipment of the Product will be specified in the System Sale Agreement.
Any Distributor-initiated delays in shipping beyond this schedule may subject
Distributor to carrying charges as reasonably determined by BGCI.  BCGI shall
notify Distributor within three (3) business days if any order cannot be filled
according to the delivery schedule requested, and will use its best efforts to
ship Products on the delivery dates specified in its written acceptance of any
purchase order.

<PAGE>

DISTRIBUTION AGREEMENT

Exhibit E

Payment Terms

I.   Timing.  Invoices shall be due and payable forty-five (45) days after
shipment of product or delivery of service.

II.  Payment shall be made to BCGI in U.S. funds by check or wire transfer, at
Distributor's option.

III. Late Payments.  Payments of any invoiced amount received after the invoice
due and payable date shall be considered late payments, and shall bear interest
at the rate of one and one half percent (1.5%) per month or the maximum allowed
by applicable law, whichever is less.

IV.  If Distributor becomes the subject of a voluntary or involuntary petition
in bankruptcy or any proceeding relating to insolvency, receivership,
liquidation or composition for the benefit of creditors and therefore BCGI
determines that the financial condition of Distributor does not justify the
terms of payment extended herein, BCGI may require, in advance, full payment
or require other payment arrangements.

V.   Payments contracted for post-warranty maintenance and support are payable
quarterly in advance.

<PAGE>

DISTRIBUTION AGREEMENT

Exhibit F

Standard Warranty

     I.   Equipment.     BCGI warrants that Distributor shall acquire good
title to the equipment included in the Products purchased by Distributor, and
that upon payment in full of the purchase price, such equipment shall be free
and clear of any security interest, lien, claim, or encumbrance of any kind
imposed by or through BCGI.  BCGI warrants that the equipment shall be free
from defects in material and workmanship under normal use and service for a
period of fifteen (15) months from the date of shipment.  The equipment must
be plugged into a functioning Uninterruptable Power Supply (UPS), which
provides battery back-up and surge/spike protection, or the warranty is void.
The obligation of BCGI under this warranty does not arise until the equipment
is returned to BCGI in Tulsa, Oklahoma, or to Distributor.  Upon receipt ,
BCGI shall, at its option, as soon as practicable or, in any event, within
thirty (30) days of receipt, either repair or replace, without charge, the
defective component part(s) and return the equipment, shipping prepaid and
billed.  If repair or replacement is not possible, BCGI shall retain such
defective component and refund the purchase price and freight of such
defective component.

     II.  Software. BCG warrants that the software included in the Products
shall conform to the then-current published documentation applicable to such
software for a period of fifteen (15) months from the shipment date.  In the
event that BCGI receives notice from Distributor during the warranty period
that the software does not conform to this warranty, BCGI will, as soon as
practicable or, in any event, within thirty (30) days of notice, at its
option, resolve or provide a solution for such software faults at no charge to
Distributor, providing Distributor (or Distributor's customer) can replicate
the symptoms of the fault.  If resolution or provision of a solution is not
available, BCGI shall refund the purchase price of the software and hardware
upon which it operates, in exchange for return of such software and hardware.

     III.      DISCLAIMER.  EXCEPT AS EXPRESSLY PROVIDED IN THIS EXHIBIT F.,
BCGI MAKES NO WARRANTIES WITH RESPECT TO THE PRODUCTS, DOCUMENTATION AND/OR
ANY HARDWARE AND/OR SOFTWARE INCLUDED IN ANY PRODUCT, EITHER EXPRESS OR
IMPLIED, INCLUDING WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

     THE WARRANTY OBLIGATIONS OF BCGI SHALL IN NO EVENT INCLUDE RESPONSIBILITY
FOR DAMAGE RESULTING FROM ACCIDENT, TRANSPORTATION, NEGLECT OR MISUSE,
MODIFICATION WITHOUT BCGI'S PRIOR CONSENT, UNAUTHORIZED ATTEMPTS TO REPAIR, OR
FAILURE OF ELECTRICAL POWER OR ENVIRONMENTAL CONTROL.

<PAGE>

DISTRIBUTION AGREEMENT

Exhibit G

Maintenance and Support Services

     BCGI will provide Tier 2 maintenance Service during the warranty period of
each Product.  This Service is continued under a post-warranty Maintenance
Agreement which is renewable on an annual basis.  The Tier 2 maintenance
includes:

     I. Software maintenance
     II.    24X7 telephone technical support
     III.   Return to factory repair or replacement
     IV.    On-site Service, when remote support fails to resolve a problem

I.   Software Maintenance

     A.   Maintenance Releases

     BCGI engineering is committed to continuing to improve the quality and
performance of all the Products.  These improvements are reflected in periodic
Maintenance Releases, which shall include regular updates (minor releases) and
upgrades (major releases) issued by BCGI that are typically installed by
Distributor with BCGI support services. Maintenance Releases are primarily
focused on improving existing functionality and performance as well as fixing
software problems.

     B.   Hot Fixes

     Some service calls may uncover software problems that may not have a
temporary work-around solution.  These problems require a "hot fix".  These
fixes are developed as needed and installed immediately.  These fixes are
typically installed by Distributor, with BCGI support services as needed.

     C.   New Versions

     BCGI will continue to expand its product line, developing new products,
or significantly changing or enhancing existing products.  In contrast to
Maintenance Releases, these products will be made available at additional
cost, upon request through the BCGI sales department.

II.  24X7 Telephone Technical Support

     The primary support vehicle of BCGI is the Telephone Technical Support Hot
Line.  It will be provided during the term of this Agreement to Distributor on

<PAGE>

a twenty-four (24) hours by seven (7) days basis and will provide access to
Distributor's skilled technical support personnel.

     The Hot Line is used to initiate the following BCGI Service activity:

         Installation, technical or operational inquiries
         Post Installation Technical or operational inquiries
         Product failure diagnosis and repair
         Defective parts replacement

     To maximize the effectiveness and timeliness of support actions,
Distributor is responsible for notifying BCGI support (Hot Line) as soon as a
serious condition has been identified to be beyond Distributor's capability to
resolve.

III. Return to Factory Repair or Replacement

     BCGI repairs or replaces failed components via a Return Material
Authorization ("RMA") process.  An RMA is issued by BCGI Telephone Technical
Support upon completed diagnosis or provision of failure data.

     BCGI shall, when requested by Distributor, provide Distributor with
advance replacement hardware part(s) required for Distributor's correction
of defective Product(s) which has been assigned an RMA.  In the event
Distributor does not return to BCGI the part(s) advance shipped under the
RMA within sixty (60) calendar days, BCGI may at its option issue an invoice
to Distributor for the then-current preferred pricing for the part(s) advance
shipped under the RMA.  All defective hardware parts, which have been replaced,
shall become the property of BCGI, and Distributor shall return such hardware
parts, prepaid by Distributor, to BCGI's designated place of repair.  All
defective hardware parts that have been repaired shall become the property of
Distributor.

     BCGI will only issue RMA's for hardware components that are covered under
the BCGI initial warranty term or BCGI extended hardware warranty term.  If the
hardware components are not under the initial warranty term or the extended
warranty term, then BCGI will charge Distributor the then current preferred
replacement and repair rates.  If BCGI issues an RMA to Distributor prior to
3 p.m., BCGI will ship the subject components to Distributor/Distributor's
end-user on that same day.

     Unauthorized modifications using non-BCGI-provided products or components
to either Product components, network configurations or software will void
BCGI warranty and post-warranty Maintenance Agreement terms.

     Unauthorized installation of any non-BCGI software onto BCGI Product
components will void BCGI warranty and post-warranty Maintenance Agreement
terms.

     If any or all of the hardware or software was not subject to continuous
maintenance coverage for any period of time after the initial maintenance term,

<PAGE>

the hardware and software is subject to a complete on-site Product inspection
by BCGI personnel and the Product must be upgraded to currently BCGI-supported
revision levels and minimum hardware performance specifications.  The
inspection and upgrade costs will be billed in addition to the maintenance
contract fee, including necessary travel related expenses.

IV.  On-Site Assistance

      On-site assistance, when all reasonable activity has not produced a
resolution path and the Product is covered by either warranty, post-warranty
maintenance, or extended warranty, will be provided by BCGI at no additional
cost. BCGI and Distributor must mutually agree that on-site support is
necessary. BCGI personnel will arrive at the customer site as soon as possible
after agreement that on-site support is needed.

     If it is determined that BCGI's hardware or software did not cause the
problem, then Distributor shall reimburse BCGI for the on-site assistance at
Preferred Prices.

<PAGE>

DISTRIBUTION AGREEMENT

Exhibit H

Distributor Responsibilities

Distributor will undertake the following:

I.   Sales and Service Coverage.  To provide BCGI-trained sales, technical and
service coverage to Distributor's customers for the Products.

II.  Warranty Registration and Service Log.  To properly register the warranty
for each and every Product sold, including customer name and location, and to
maintain a log of all service activity, reporting such data periodically to
BCGI, such that BCGI can properly track, investigate, and resolve Product
service problems.  Distributor agrees to accomplish via its "Clarify" system.
BCGI agrees to provide Distributor with all information required by
Distributor in order for Distributor to accomplish this task.

III.      Customer Service.  To respond to customer service requests with
trained technicians in a timely fashion.

IV.  Lead Follow Up.  To follow up on each and every qualified sales lead from
BCGI and report on the results of such field sales efforts.

V.   Customer Complaints.  To respond promptly to any customer complaints which
may be referred to Distributor from BCGI.

VI.       Change Orders and Cancellations.

     A.        Distributor may make a change in an order provided such change
does not affect the price of the order by more than ten percent (10%) and
further provided that such change is received by BCGI no less than ten (10)
days prior to its scheduled shipment date.

     B.   Distributor may cancel an order, or any portion thereof, without
charge, provided such notice of cancellation is received by BCGI no less than
thirty (30) days prior to its scheduled shipment date.

VII. System Environment

     The Products contain delicate electronic components that require special
care in:

     A.   Physical handling

     Product components must be handled with care.  If transportation of
components is required, the components must be packed either in their
original packaging or such that they are able to withstand a drop of
three (3) feet (one [1] meter).

<PAGE>

     B.   Air conditioning

     Product components are rated to operate within fifty-four (54) to
eighty-six (86) degrees Fahrenheit (twelve [12] to thirty [30] degrees
Celsius) and a relative humidity level less than seventy percent (70%)
non-condensing.

     C. Power conditioning

     The Product must be connected to Uninterruptable Power Supply with
appropriate surge/spike protection.

     Non-conformance with this requirement will void BCGI's warranty and
Extended warranty agreement terms.

VIII.     Integration

     Some BCGI systems may require an interface to another system.  It is
the Distributor's responsibility to provide the correct interface not supported
in BCGI's standard product offering as outlined in Exhibit B to this Agreement.

IX.  Site Data Capture

     Upon completing any given installation, it is Distributor's responsibility
to complete the attached BCGI data capture form and send it to BCGI.

X.   System Configuration

     During the Product warranty period and subsequent maintenance contract, no
modifications to any Product components or network configurations may be made
without prior approval and assistance of BCGI technical support. Nonconformance
will void BCGI's warranty and post warranty Maintenance Agreement terms.

XI.  First Level Technical Support

     During the initial warranty period and all post warranty maintenance
periods, Distributor shall provide end user training and day-to-day technical
support.  In no event will BCGI be obligated to provide hot-line or other
technical support service directly to end-users, except as mutually agreed to
by BCGI and Distributor.

XII. Technical Skills and Training

     The Product requires specialized training to operate effectively and
efficiently.  It is important that the Product's operational staff be properly
trained and skilled in operating and managing Windows NT networking systems.
BCGI recommends Distributor's technical support personnel and end-user's
operational staff attend locally available training classes for Windows NT
network operation and management.

<PAGE>

XIII.     System Backup

     To protect against possible loss of data, Distributor should inform
end-users of the importance of backing up the Product on a regular basis in
accordance with the Product's users guide.

XIV. Dial-in Access

     The support Services offered by BCGI are based on the premise of being
able to remotely access, diagnose, analyze, and tune each Product.  To that
end, Distributor should ensure the end-user provides a dedicated, direct-dial,
data-grade telephone line for each physical site/location and provide
permission to access that line to BCGI technical support as needed.

XV.  BCGI Privileges

     Diagnosis, fixes, performance analysis and tuning activities that can be
performed via remote dial-in access require unrestricted Product access
privileges granted to BCGI telephone technical support personnel.  Access is
protected via "Username/Password" combinations.

     Remote dial-in access requires knowledge of "Remote Access Telephone
Number", "Domain Name", "Username" and "Password".  The Windows NT "Remote
Access Services" (RAS) will reject any unauthorized access.

     Only BCGI and Distributor will be authorized to utilize remote dial-in
access.  BCGI and Distributor personnel are obligated not to reveal phone
numbers or access passwords to unauthorized parties.

XVI. Physical Access

     During Product installation, major repairs or major Product upgrades, it
may be necessary for Distributor to have physical access to the Product.

     To maximize the responsiveness and expediency of Distributor or BCGI
Service activities, it may be necessary for the end-user to grant twenty-four
(24)-hour access to Distributor or BCGI technical support personnel.

XVII.     Country-Level/On-Site Spares Kits

     Distributor will exercise diligence in selling a minimum of N+1 redundant
spares at each customer site. Additionally, Distributor will exercise diligence
in maintaining in-country spares sufficient to avoid excessive down time due
to material shortages caused by delays in importing spare parts.

<PAGE>

DISTRIBUTION AGREEMENT

Exhibit I

BCGI Responsibilities

     BCGI shall have the following additional responsibilities during the term
of the Agreement:

     I.   Sales Materials.

     To make available, at reasonable cost, "soft" copies of sales support
materials such as product brochures, data sheets, user guides, applications
briefs, sales notebooks, formal sales presentations in overhead, slide, or
flip chart form, and other such material necessary to aid in the selling
process, as such materials are updated from time to time.

     II.  Marketing Support.

     To provide Distributor with timely reports detailing marketing or
technical information on the Products, competitive comparisons, special sales
or service suggestions, competitive announcements, and to respond promptly to
all inquiries and requests for help from Distributor.

     III. Advertising Permission.

     To permit Distributor to advertise the Products under tradename(s) and
trademark(s) to be mutually agreed by BCGI and Distributor.

     IV.  Sales and Technical Training.

     To provide field sales and sales technical support training for
Distributor's sales force at BCGI's corporate offices, or Distributor's
location as agreed upon, and to assist in direct customer contacts as required.

     V.   Sales Leads.

     To periodically provide Distributor, at BCGI's discretion, with qualified
sales leads applicable to Distributor sales from BCGI's advertising publicity
campaigns; provided however, that Distributor pursues and further qualifies
such leads with its sales force.

<PAGE>

     VI.
          Installation and Cutover Assistance.

     BCGI shall, upon request from Distributor, make available at the
installation site and at such other times as may be requested by Distributor,
a qualified field engineer to render installation, cutover and customer
assistance as may be required by Distributor.  Distributor shall pay BCGI its
then-current preferred time and materials rates for such assistance.

     VII. Support Assistance.

     BCGI shall provide Distributor with support Services as set out in
Exhibit G during the warranty period for each Product, at no charge to
Distributor.

     VIII.     Hardware Life Support.

     BCGI shall use commercially reasonable efforts in accordance with
reasonable inventory and sourcing practices to offer functionally equivalent
spare hardware parts as available from industry sources for a period of five
(5) years from the date of last manufacture of the respective Product.

     IX.  Documentation.

     One (1) set of English language manuals, in modifiable electronic format,
for the Products will be provided by BCGI to Distributor at every release of
the Products (includes one [1] set of any and all updates to such manuals).
Additional copies of such manuals are available from BCGI at the then current
Preferred Prices.  The translation of the manual into a language other than
English is at the discretion of  Distributor, who assumes all risk of
translation error.

     X.   Installation Planning

     BCGI provides a site preparation document describing in detail the
necessary steps that have to be completed before an installation can begin.
If Distributor has received written approval from BCGI to perform system
installations of the Product, BCGI service personnel will be available to
consult and assist Distributor in the planning process; however, ultimately
the project plan is the responsibility of Distributor.  In general, these
activities do not require on-site presence of BCGI personnel.  However, BCGI
personnel may be requested to inspect a site for its then-current fees for
such services.

     In the event BCGI personnel are to be involved in the installation, and
upon the return to BCGI of a completed Site Preparation CheckList, BCGI will
work with Distributor to schedule an installation as quickly as possible.  In
the event BCGI personnel are to be involved in the installation, Services will
be provided at a rate as set forth in the then-current preferred BCGI
Installation Price List.

<PAGE>

     XI.  Installation, Setup and Test

     In the event BCGI personnel are to be involved in the installation, BCGI
will, at Distributor's request, help setup, install and configure all Product
components and ensure that all functions work as represented.  It is the
end-user's responsibility to provide the necessary space and to install power
and other environment requirements.

     In the event that BCGI support personnel need to work with the end-user
to resolve a problem, they will ask Distributor to initiate the call and
remain involved in the resolution process.  BCGI support personnel may not
contact Distributor customers on their own.

     If BCGI receives a call from a known Distributor customer, that call will
be redirected to Distributor immediately, via a supervised transfer.  Any call
to the BCGI Technical Support HotLine will be sent to Distributor's Customer
Support Center - 408-432-2600.

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