LIVINGSTON ENTERPRISES INC
S-1/A, 1997-05-28
COMPUTER INTEGRATED SYSTEMS DESIGN
Previous: WILDERNESS DEVELOPMENT CORP, S-11/A, 1997-05-28
Next: SCHEID VINEYARDS INC, SB-2, 1997-05-28



<PAGE>
   
      AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MAY 28, 1997
    
   
                                                      REGISTRATION NO. 333-27335
    
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
   
                                AMENDMENT NO. 1
    
   
                                       TO
    
                                    FORM S-1
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                            ------------------------
                          LIVINGSTON ENTERPRISES, INC.
 
             (Exact name of Registrant as specified in its charter)
 
<TABLE>
<S>                              <C>                            <C>
          CALIFORNIA                         7373                  77-0127305
 (State or other jurisdiction    (Primary Standard Industrial   (I.R.S. Employer
              of                 Classification Code Number)     Identification
incorporation or organization)                                      Number)
</TABLE>
 
                                4464 WILLOW ROAD
                          PLEASANTON, CALIFORNIA 94588
                                 (510) 737-2100
 
  (Address, including zip code, and telephone number, including area code, of
                   Registrant's principal executive offices)
 
                               STEVEN M. WILLENS
                     PRESIDENT AND CHIEF EXECUTIVE OFFICER
                          LIVINGSTON ENTERPRISES, INC.
                                4464 WILLOW ROAD
                          PLEASANTON, CALIFORNIA 94588
                                 (510) 737-2100
 
 (Name, address, including zip code, and telephone number, including area code,
                             of agent for service)
                           --------------------------
 
                                   COPIES TO:
 
<TABLE>
<S>                                       <C>
       Steven E. Bochner, Esq.                   William L. Hudson, Esq.
         Nevan C. Elam, Esq.                     Valerie J. Horwitz, Esq.
     Richard S. Arnold, Jr., Esq.                 Randall M. Lake, Esq.
   Wilson Sonsini Goodrich & Rosati          Brobeck, Phleger & Harrison LLP
       Professional Corporation            Spear Street Tower One Market Plaza
          650 Page Mill Road                 San Francisco, California 94105
     Palo Alto, California 94304                      (415) 442-0900
            (415) 493-9300
</TABLE>
 
                           --------------------------
 
    APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: As soon as
practicable after the effective date of this Registration Statement.
                           --------------------------
 
    If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, check the following box: / /
 
    If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering: / /
 
    If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering: / /
 
    If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box: / /
                           --------------------------
 
    THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(a),
MAY DETERMINE.
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
   
                                EXPLANATORY NOTE
    
 
   
    The sole purpose of this Amendment is to file an Exhibit to the Registration
Statement. No changes have been made to the text of the Registration Statement
other than to Item 16 (Exhibits).
    
<PAGE>
                                    PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 13.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION
 
    The following table sets forth the costs and expenses, other than
underwriting discounts and commissions, payable by the Company in connection
with the sale of Common Stock being registered. All amounts are estimates except
the SEC registration fee and NASD filing fee.
 
<TABLE>
<S>                                                                 <C>
SEC registration fee..............................................  $  12,122
NASD filing fee...................................................      4,500
Nasdaq National Market listing fee................................     50,000
Printing and engraving costs......................................    125,000
Legal fees and expenses...........................................    310,000
Accounting fees and expenses......................................    250,000
Blue Sky fees and expenses........................................     10,000
Transfer Agent and Registrar fees.................................      5,000
Miscellaneous expenses............................................     35,000
                                                                    ---------
    Total.........................................................    801,622
                                                                    ---------
                                                                    ---------
</TABLE>
 
ITEM 14.  INDEMNIFICATION OF DIRECTORS AND OFFICERS
 
    The Bylaws of the Company provide for the indemnification of the Company's
officers and directors against certain liabilities and expenses relating to
lawsuits and other proceedings in which they may become involved. Section 317 of
the California Corporations Code also provides for indemnification of a
corporation's directors and officers under certain circumstances.
 
    Section 204(a)(10) and (11) and Section 317 of the California Corporations
Code and the Bylaws of the Company contain provisions covering indemnification
of corporate directors and officers against certain liabilities and expenses
incurred as a result of proceedings involving such persons in their capacities
as directors and officers, including proceedings under the Securities Act or the
Exchange Act.
 
    The Company provides indemnity insurance pursuant to which its directors and
officers are indemnified or insured under certain circumstances against certain
liabilities or losses, including liabilities under the Securities Act. The
Company has obtained shareholder approval to enter into indemnity agreements
with their respective directors and officers. Each agreement provides for
indemnification of the fines, settlements and other amounts incurred by such
person in connection with the good faith performance of his or her duties as a
director or officer. The indemnification agreements also provide for the advance
payment by the Company of expenses incurred in defending any proceeding to which
the director or officer may be a party, provided that the affected director or
officer executed an undertaking, acceptable to the disinterested members of the
board of directors, agreeing to repay all amounts advanced for defense of the
proceeding if it shall be ultimately determined that such director or officer
was not entitled to be indemnified in accordance with Sections 204(a)(10) and
(11) and Section 317 of the California Corporations Code.
 
    The Company understands that the staff of the Commission is of the opinion
that statutory, charter and contractual provisions as are described above have
no effect on claims arising under the federal securities laws.
 
ITEM 15.  RECENT SALES OF UNREGISTERED SECURITIES
 
    Since 1994 the registrant has issued and sold the following unregistered
securities: as of April 30, 1997, the Registrant has issued and sold 186,832
shares of Common Stock to employees and consultants at prices
 
                                      II-1
<PAGE>
ranging from $.033 to $10.50 per share, upon exercise of stock options, pursuant
to the Registrant's 1994 Stock Option Plan; in December 1995, the Company issued
15,000 shares of Common Stock to Douglas Meltzer in consideration of past
services rendered to the Company and the signing of a confidentiality agreement;
and in connection with the Company's acquisition of certain assets, with a value
of $189,000 as determined by the Company's Board of Directors, of Lloyd
Internetworking, Inc. ("Lloyd") in June 1996, the Company issued 18,000 shares
of Common Stock to Lloyd shareholders.
 
    The sales of the above securities were deemed to be exempt from registration
under the Securities Act in reliance on Section 4(2) of the Securities Act, or
Rule 701 promulgated under Section 3(b) of the Securities Act, as transactions
by an issuer not involving a public offering or transactions pursuant to
compensatory benefit plans and contracts relating to compensation as provided
under such Rule 701. The recipients of securities in each such transaction
represented their intention to acquire the securities for investment only and
not with a view to or for sale in connection with any distribution thereof and
appropriate legends were affixed to the share certificates and instruments
issued in such transaction. All recipients had adequate access, through their
relationships with the Company, to information about the Registrant.
 
ITEM 16.  EXHIBITS
 
    (a) Exhibits
 
   
<TABLE>
<C>          <S>
      1.1+   Underwriting Agreement.
 
      3.1+   Restated Articles of Incorporation of Livingston Enterprises, Inc., a California
               corporation, as currently in effect.
 
      3.4+   Bylaws of the Registrant, as currently in effect.
 
      3.5+   Bylaws of the Registrant, as in effect immediately following the closing of the
               offering made under this Registration Statement.
 
      4.1*   Specimen Common Stock Certificate.
 
      5.1*   Opinion of Wilson Sonsini Goodrich & Rosati, Professional Corporation.
 
     10.1+   Form of Indemnification Agreement between the Company and each of its directors
               and officers.
 
     10.2+   1994 Stock Option Plan and forms of agreement thereunder.
 
     10.3+   1997 Stock Plan and form of agreement thereunder.
 
     10.4+   1997 Employee Stock Purchase Plan and forms of agreements thereunder.
 
     10.5+   Lease dated January 24, 1996 between Registrant and Willow Road Associates, LLC
               for the facility located at 4464 Willow Road, Pleasanton, CA 94588.
 
     10.6+   Deferred Compensation Plan dated May 2, 1996, as amended, between the Company
               and Jerrold Livingston.
 
     10.7+   Master Revolving Note with Comerica Bank dated April 30, 1996.
 
     10.8**  OEM Software License and Development Agreement between the Company and U.S.
               Robotics Access Corp. (f/k/a U.S. Robotics, Inc.), as amended.
 
     11.1+   Calculation of earnings per share.
</TABLE>
    
 
                                      II-2
<PAGE>
   
<TABLE>
<C>          <S>
     23.1+   Consent of KPMG Independent Auditors.
 
     23.2*   Consent of Counsel (included in Exhibit 5.1).
 
     24.1+   Power of Attorney (see page II-4).
</TABLE>
    
 
- ---------
 
*   To be filed by amendment.
 
   
**  Confidential treatment has been requested with respect to certain portions
    of this exhibit. Omitted portions have been filed separately with the
    Securities and Exchange Commission.
    
 
   
+   Previously filed.
    
 
    (b) Financial Statement Schedules
 
    II. Valuation and Qualifying Accounts
 
    Schedules not listed above have been omitted because the information
required to be set forth therein is not applicable or is shown in the financial
statements or notes thereto.
 
ITEM 17.  UNDERTAKINGS
 
    The undersigned Registrant hereby undertakes to provide to the Underwriters
at the closing specified in the Underwriting Agreement certificates in such
denominations and registered in such names as required by the Underwriters to
permit prompt delivery to each purchaser.
 
    Insofar as indemnification by the Registrant for liabilities arising under
the Securities Act may be permitted to directors, officers and controlling
persons of the Registrant pursuant to the provisions referenced in Item 14 of
this Registration Statement or otherwise, the Registrant has been advised that
in the opinion of the Securities and Exchange Commission such indemnification is
against public policy as expressed in the Securities Act, and is, therefore,
unenforceable. In the event that a claim for indemnification against such
liabilities (other than the payment by the Registrant of expenses incurred or
paid by a director, officer, or controlling person of the Registrant in the
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Securities Act and will be governed by the final
adjudication of such issue.
 
    The undersigned Registrant hereby undertakes that:
 
    (1) For purposes of determining any liability under the Securities Act, the
information omitted from the form of Prospectus filed as part of this
Registration Statement in reliance upon Rule 430A and contained in a form of
Prospectus filed by the Registrant pursuant to Rule 424(b)(1) or (4) or 497(h)
under the Securities Act shall be deemed to be part of this Registration
Statement as of the time it was declared effective.
 
    (2) For the purpose of determining any liability under the Securities Act,
each post-effective amendment that contains a form of Prospectus shall be deemed
to be a new registration statement relating to the securities offered therein,
and the offering of such securities at that time shall be deemed to be the
initial bona fide offering thereof.
 
                                      II-3
<PAGE>
                                   SIGNATURES
 
   
    Pursuant to the requirements of the Securities Act, the Registrant has duly
caused this Registration Statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Pleasanton, State of
California, on the 28th day of May, 1997.
    
 
                                          LIVINGSTON ENTERPRISES, INC.
 
                                          By:        /s/ STEVEN M. WILLENS
                                              ----------------------------------
 
                                                      Steven M. Willens
                                                PRESIDENT AND CHIEF EXECUTIVE
                                                         OFFICER
 
                               POWER OF ATTORNEY
 
    KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears
below constitutes and appoints Steven M. Willens and Steven A. Hess and each of
them his attorneys-in-fact, each with the power of substitution, for him and in
his name, place and stead, in any and all capacities, to sign any and all
amendments (including post-effective amendments) to this Registration Statement,
and to sign any registration statement for the same offering covered by this
Registration Statement that is to be effective upon filing pursuant to Rule
462(b) promulgated under the Securities Act of 1933, and all post-effective
amendments thereto, and to file the same, with all exhibits thereto in all
documents in connection therewith, with the Securities and Exchange Commission,
granting unto said attorneys-in-fact and agents, and each of them full power and
authority to do and perform each and every act and thing requisite and necessary
to be done in and about the premises, as fully to all intents and purposes as he
might or could do in person, hereby ratifying and confirming that such
attorneys-in-fact and agents or any of them, or his or their substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.
 
    Pursuant to the requirements of the Securities Act of 1933, as amended, this
Registration Statement has been signed by the following persons in the
capacities and on the dates indicated:
 
   
<TABLE>
<CAPTION>
               SIGNATURE                                          TITLE                                DATE
- ----------------------------------------  ------------------------------------------------------  ---------------
 
<C>                                       <S>                                                     <C>
         /s/ STEVEN M. WILLENS
      ----------------------------        President, Chief Executive Officer and Chairman          May 28, 1997
           Steven M. Willens
 
           /s/ STEVEN A. HESS
      ----------------------------        Chief Financial Officer (Principal Financial and         May 28, 1997
             Steven A. Hess                 Accounting Officer)
 
         /s/ JERROLD LIVINGSTON
      ----------------------------        Director                                                 May 28, 1997
           Jerrold Livingston
 
         /s/ RONALD H. WILLENS
      ----------------------------        Director                                                 May 28, 1997
           Ronald H. Willens
 
         /s/ ALBERT A. PIMENTEL
      ----------------------------        Director                                                 May 28, 1997
           Albert A. Pimentel
 
           /s/ ROBERT C. HAWK
      ----------------------------        Director                                                 May 28, 1997
             Robert C. Hawk
</TABLE>
    
 
                                      II-4
<PAGE>
                          LIVINGSTON ENTERPRISES, INC.
 
                 SCHEDULE II--VALUATION AND QUALIFYING ACCOUNTS
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                 BALANCE AT                   DEDUCTIONS:
                                                                BEGINNING OF                  WRITE OFFS      BALANCE AT
                       CLASSIFICATION                              PERIOD        ADDITIONS    OF ACCOUNTS    END OF PERIOD
- -------------------------------------------------------------  ---------------  -----------  -------------  ---------------
<S>                                                            <C>              <C>          <C>            <C>
Allowance for returns and doubtful accounts
    Year ended August 31, 1994...............................     $  --          $      13     $  --           $      13
    Year ended August 31, 1995...............................     $      13      $     137     $  --           $     150
    Year ended August 31, 1996...............................     $     150      $     563     $      65       $     648
 
    Six months ended February 28, 1996 (unaudited)...........     $     150      $     200     $       1       $     349
    Six months ended February 29, 1997 (unaudited)...........     $     648      $     330     $      96       $     882
 
Warranty accrual
    Year ended August 31, 1994...............................     $  --          $  --         $  --           $  --
    Year ended August 31, 1995...............................     $  --          $  --         $  --           $  --
    Year ended August 31, 1996...............................     $  --          $  85         $  --           $  85
 
    Six months ended February 28, 1996 (unaudited)...........     $  --          $  --         $  --           $  --
    Six months ended February 29, 1997 (unaudited)...........     $  85          $     340     $  --           $     425
</TABLE>
<PAGE>
                                 EXHIBIT INDEX
 
   
<TABLE>
<CAPTION>
 EXHIBIT
   NO.                                                    DESCRIPTION
- ---------
<S>        <C>
 1.1+      Underwriting Agreement.
 
 3.1+      Restated Articles of Incorporation of Livingston Enterprises, Inc., a California corporation, as
             currently in effect.
 
 3.4+      Bylaws of the Registrant, as currently in effect.
 
 3.5+      Bylaws of the Registrant, as in effect immediately following the closing of the offering made under this
             Registration Statement.
 
 4.1*      Specimen Common Stock Certificate.
 
 5.1*      Opinion of Wilson Sonsini Goodrich & Rosati, Professional Corporation.
 
10.1+      Form of Indemnification Agreement between the Company and each of its directors and officers.
 
10.2+      1994 Stock Option Plan and forms of agreement thereunder.
 
10.3+      1997 Stock Plan and form of agreement thereunder.
 
10.4+      1997 Employee Stock Purchase Plan and forms of agreements thereunder.
 
10.5+      Lease dated January 24, 1996 between Registrant and Willow Road Associates, LLC for the facility located
             at 4464 Willow Road, Pleasanton, CA 94588.
 
10.6+      Deferred Compensation Plan dated May 2, 1996, as amended, between the Company and Jerrold Livingston.
 
10.7+      Master Revolving Note with Comerica Bank dated April 30, 1996.
 
10.8**     OEM Software License and Development Agreement between the Company and U.S. Robotics Access Corp. (f/k/a
             U.S. Robotics, Inc.), as amended.
 
11.1+      Calculation of earnings per share.
 
23.1+      Consent of KPMG Independent Auditors.
 
23.2*      Consent of Counsel (included in Exhibit 5.1).
 
24.1+      Power of Attorney (see page II-4).
</TABLE>
    
 
- ---------
 
*   To be filed by amendment.
 
   
**  Confidential treatment has been requested with respect to certain portions
    of this exhibit. Omitted portions have been filed separately with the
    Securities and Exchange Commission.
    
 
   
+   Previously filed.
    

<PAGE>



                              OEM SOFTWARE LICENSE AND
                                DEVELOPMENT AGREEMENT

                               Dated September 1, 1994

                                       between

                            Livingston Enterprises, Inc.
                                         and
                                 U.S. Robotics, Inc.


    This OEM Software License and Development Agreement (this "Agreement") is 
made effective September 1, 1994, by and between U.S. Robotics, Inc., a 
Delaware corporation with a place of business at 8100 North McCormick Blvd., 
Skokie, Illinois 60076 ("USR"), as licensee, and Livingston Enterprises, 
Inc., a California corporation with a place of business at 6920 Koll Center 
Parkway, Pleasanton, California 94566 ("Livingston" or "Licensor"), as 
licensor.

In consideration of the premises and of the mutual covenants and promises set 
forth herein, USR and Licensor hereby agree as follows:

SECTION 1.    PURPOSE OF AGREEMENT.

    Licensor has developed certain computer software identified in Exhibit 2.7
    attached hereto which USR desires to license for inclusion in and
    sublicensing with certain USR products and systems.  Licensor desires to
    grant to USR, its Subsidiaries and Permitted Assigns, certain rights with
    respect to such software.  In order to include such software in its
    products, USR will require certain software development services and the
    technical support and assistance of Licensor's software engineering and
    development personnel and Licensor is willing to provide such development
    services, support and assistance for a fee.

SECTION 2.    DEFINED TERMS.

    When used in this Agreement and any Exhibits or Schedules attached hereto,
    the capitalized terms listed below shall have the respective meanings
    indicated:

    2.1   "CODE" means computer programming code.  If not otherwise specified,
          "Code" means  only Object Code and NOT Source Code, which are defined
          as follows:

          2.1.1     "OBJECT CODE" means the machine-readable form of the Code.

          2.1.2     "SOURCE CODE" means the human-readable form of the Code and
                    related program and system documentation, including all
                    comments and any procedural code.

<PAGE>

     2.2  "DERIVATIVE WORK" means a work which is based upon one or more
          preexisting works, such as a revision, enhancement, modification,
          translation, abridgment, condensation, expansion, or  any other form
          in which such preexisting works may be transformed or adapted, and
          which if prepared without authorization of the owner of the copyright
          in such preexisting work, would  constitute a copyright infringement. 
          "Derivative Work" also includes any compilation that incorporates such
          a preexisting work.

     2.3  "DEVELOPMENT PROJECT" means the development, testing and
          implementation of all Maintenance Modifications, Enhancements and
          Upgrades to the Licensed Software described in Exhibit 4.1 attached
          which are necessary or reasonably required in order to allow the
          Licensed Software to run on the USR Hardware Platforms and perform in
          accordance with the Specifications for such Licensed Software.

     2.4  "LICENSOR DEVELOPMENT SERVICES" means the software engineering and
          development and technical support services described in the Statement
          of Work for the Development Project attached as Exhibit 4.1 which
          Licensor shall perform in accordance with Section 4 of this Agreement.

     2.5  "DOCUMENTATION" means user manuals and other written materials that
          relate to the Licensed Software.

     2.6  "ENHANCEMENTS" means all changes or additions to the Code and related
          Documentation comprising the Licensed Software, other than Maintenance
          Modifications and Upgrades, including, but not limited to, all new
          releases, that improve functions, add new functions, or improve
          performance by changes in system design or coding and all changes
          and/or additions made to support new releases of the operating systems
          with which the Code is designed to operate, support new input/output
          (I/O) devices, or provide other incidental updates.

     2.7  "LICENSED SOFTWARE" means the Object Code, Documentation and other
          materials relating to the programs specified and/or described in
          Exhibit 2.7 and any further Schedules or Exhibits attached hereto,
          together with the Object Code, Documentation and other materials
          relating to all Maintenance Modifications and Enhancements thereto,
          and together with the Object Code, Documentation and other materials
          relating to any Upgrades that are hereafter made subject to this
          Agreement.

     2.8  "PERMITTED ASSIGNS" means any person to whom USR assigns its rights or
          interests under this Agreement with the written approval of 
          Livingston, as set forth in Section 11.11 hereof.

     2.9  "MAINTENANCE MODIFICATION" means any modification or  revision, other
          than Enhancements and Upgrades, to Code or Documentation that correct
          programming 

                                       -2-
<PAGE>

          errors or make other incidental changes or corrections. "Maintenance 
          Modifications" include, but are not limited to any Bug fixes.

     2.10 "SPECIFICATIONS" means the specifications for the functional and
          operational parameters and characteristics of the Licensed Software
          set forth or referenced in Exhibit 2.7 attached hereto.

     2.11 "SUBSIDIARY" means a corporation, company or other entity (1) more
          than fifty percent (50%) of whose outstanding shares or securities
          having the right to vote for the election of directors of other
          managing authority are, or (2) which does not have outstanding shares
          or securities, as may be the case in a partnership, joint venture or
          unincorporated association, but more than fifty percent (50%) of the
          ownership interest of which, representing the right to make the
          decisions for such corporation company or other entity, is now or
          hereafter owned or controlled, directly or indirectly, by a party
          hereto, but such corporation, company or other entity shall be deemed
          to be a Subsidiary only so long as such ownership or control exists.

     2.12 "THIRD PARTY SOFTWARE" means any third party Code and Documentation
          identified in Exhibits 2.7 and/or 4.1 attached hereto, including any
          Maintenance Modifications, Enhancements and Upgrades thereto, which
          Livingston obtains and provides or sublicenses to USR pursuant to
          Sections 4.4 and 6.3 of this Agreement.

     2.13 "UPGRADES" means changes or additions to Code and related
          Documentation that (1) provide substantial additional value and
          utility, (2) as a practical matter could be priced and offered
          separately as optional additions to the Code and Documentation, and
          (3) are not made available to any other customers or licensees without
          a separate or additional charge.

     2.14 "USR HARDWARE PLATFORMS" means the specific hardware products of USR
          and its Subsidiaries described in Section 3.1.1 of this Agreement.

     2.15 "OEM SUPPLY AGREEMENT" means the OEM Supply Agreement entered into by
          and between Livingston and USR, dated as of September 1, 1994 pursuant
          to which USR has agreed to sell certain modem products to Livingston.

     2.16 "BUG" means a defect in the Licensed Software which causes the
          software to perform in a manner which substantially differs from the
          specifications of the Licensed Software and which can be replicated
          with reasonable effort on the then applicable model of the Livingston
          product line corresponding to Livingston's current PortMaster product
          line or on such other equipment as the Parties reasonably agree is
          appropriate under the circumstances.  Without limiting the generality
          of any defect in Code which affects more than 5% of the units of
          Products containing such Code or which causes any Product to be
          inoperable more than 5% of the time shall be deemed a "Bug" unless the
          parties otherwise agree.

                                       -3-
<PAGE>

     2.17 "CLIENT CODE" means a program which executes on a remote CPU to
          connect to the USR hardware platforms over a network.

SECTION 3.    LICENSE GRANT FOR LICENSED SOFTWARE.

     3.1  SCOPE.  Subject to the terms and conditions set forth in this
          Agreement, Licensor hereby grants to USR and its Permitted Assigns a
          worldwide, nonexclusive. non-transferable, perpetual right and license
          to use, copy, reproduce, display, execute, modify, distribute, lease
          and prepare Derivative Works based on all License Software that is
          now, or hereafter becomes, the subject of this Agreement, subject
          further to the following restrictions:

          3.1.1     USR shall only distribute or lease copies of the Licensed
                    Software in executable form and in conjunction with the
                    manufacture and/or sale or lease of, and only for use in,
                    those USR Hardware Platforms described in Exhibit 3.1.1
                    attached hereto, regardless of the name or names under which
                    such products are marketed and sold; provided that USR and
                    its Subsidiaries may not supply such products to any
                    unaffiliated third party on an OEM or private label basis
                    without the prior written consent of Livingston.

          3.1.2     No Code in whole or in part shall be used or incorporated in
                    any USR Hardware Platform except those which are described
                    in Exhibit 3.1.1 and any amendments thereto which the
                    parties may hereafter agree to.

          3.1.3     Except as otherwise agreed in writing by Livingston, USR
                    shall include appropriate copyright and other proprietary
                    notices (in the form provided by Livingston) in all copies
                    of the Licensed Software distributed to other parties.

          3.1.4     All contracts and purchase orders, if any, for USR Hardware
                    Platform Products supplied to the U.S. Government under a
                    prime contract or to a contractor operating under a U.S.
                    Government contract shall include the following paragraph or
                    substantially equivalent language.

                    "Use, duplication, or disclosure by the Government is 
                    subject to restrictions as set forth in subparagraph 
                    (c)(1)(ii) of the Rights in Technical Data and Computer 
                    Software clause at 252.227-7013."

          3.1.5     In addition, subject to the same restrictions, USR may copy
                    and distribute Client Code related to the Licensed Software
                    as provided by Licensor and as modified to operate in
                    conjunction with the USR Hardware Platforms incorporating
                    the Licensed Software.

     3.2  RIGHT TO GRANT SUBLICENSES.  The right and license granted above shall
          include the right of USR to sublicense and authorize other parties
          (including its Subsidiaries, 

                                       -4-
<PAGE>

          subcontractors, dealers, distributors, and agents collectively, 
          "Sublicensees") to do any, some, or all of the foregoing, with respect
          to the Licensed Software, provided that such other parties agree to be
          bound by the terms of this Agreement. Specifically, sublicensing 
          pursuant to the foregoing shall only be authorized pursuant to the 
          following terms:

          3.2.1     Such sublicenses shall only be granted pursuant to a written
                    sublicense agreement.  Such sublicense agreements may be in
                    any form, provided that they contain substantially the same
                    provisions relating to the Licensed Software as are
                    contained in this Agreement with respect to intellectual
                    property rights, warranties, limitations of liability,
                    indemnities and confidential information. Livingston shall
                    have the right to approve the relevant provisions of the
                    sublicense agreement utilized in connection with the
                    foregoing issues.  Without limiting the generality of the
                    foregoing, Sublicensees shall be prohibited from further
                    sublicensing, assigning or transferring the Licensed
                    Software without the prior written consent of Livingston.

          3.2.2     USR shall not sublicense and Sublicensees shall have no
                    rights to the Licensed Source Code.  Further, sublicensees
                    shall be prohibited from reverse engineering, disassembling
                    or decompiling the Licensed Software.

          3.2.3     USR agrees to notify Livingston in writing of any sublicense
                    granted pursuant hereto.  Such notice shall include the
                    Sublicensee's name, address and contact person, and shall
                    give a brief summary of the nature of the transaction.

          3.2.4     With respect to any activities of Sublicensees, royalties
                    shall be payable in accordance with the terms as set forth
                    in Section 6 and Exhibit 6.2 of this Agreement.  Reporting
                    and auditing of such royalties shall also be effected in
                    accordance with Section 6 and Exhibit 6.2 herein.

     3.3  PATENTS AND PATENT APPLICATIONS.  Licensor further grants to USR its
          Subsidiaries and its and their respective customers, mediate and
          immediate, a worldwide, nonexclusive, nontransferable, and 
          royalty-free license under all patents or patent applications if any, 
          covering the Licensed Software owned or licensable by Licensor during 
          the term of this Agreement to make, have made, use, have used, lease, 
          and/or otherwise transfer such Licensed Software, including Derivative
          Works thereof, as set forth in Section 3.1 above.

     3.4  COPIES FOR INTERNAL USE.  The foregoing grant of license includes the
          right to make and use reasonable numbers of copies of the Licensed
          Software exclusively for archival, test, maintenance, warranty service
          and product demonstration purposes without any obligation to pay
          royalties with respect thereto.

                                       -5-
<PAGE>

SECTION 3A.   LICENSE GRANT FOR SOURCE CODE.

     3A.1 Subject to the terms and conditions contained in this Agreement,
          Licensor hereby grants to USR and its Permitted Assigns a
          nonperpetual, nonexclusive, nontransferable right and license
          (revocable as set forth in Section 3A.1.4) to use, copy, reproduce and
          create Derivative Works of the Source Code (the "Licensed Source
          Code") which is required to generate the Object Code contained in the
          Licensed Software (as defined herein and specified in Exhibit 2.7
          hereto), subject further to the following limitations and
          restrictions:

          3A.1.1         USR shall use the Licensed Source Code only for the
                         following purposes and subject to the following
                         limitations, (i) the modification and creation of
                         Derivative Works based upon the Licensed Software in
                         connection with porting of the Licensed Software to the
                         USR Hardware Platforms described in Exhibit 3.1.1 and
                         as appropriate for any USR Hardware Platforms added
                         thereto by amendment, (ii) developing and/or porting
                         Maintenance Modifications, Enhancements and Upgrades of
                         the Licensed Software to the USR Hardware Platforms
                         described in Exhibit 3.1.1 or subsequently added
                         thereto by amendment, and (iii) developing customized
                         modifications of the Licensed Software and otherwise
                         supporting and servicing the needs of purchasers and
                         end users of the USR Hardware Platforms described in
                         Exhibit 3.1.1 or subsequently added thereto by
                         amendment.

          3A.1.2         USR acknowledges and agrees that it is acquiring only
                         the right to use the Licensed Source Code as strictly
                         authorized hereunder.  All ownership, copyrights,
                         patent rights (if any) and other intellectual property
                         rights in and to the Licensed Source Code shall remain
                         vested in Licensor.  USR shall not transfer, assign or
                         sublicense the Licensed Source Code.  USR further
                         acknowledges the confidential and proprietary nature of
                         the Licensed Source Code and agrees to exert and
                         implement all commercially reasonable efforts and
                         measures to maintain and preserve the confidentiality
                         and to prevent the unauthorized use thereof, which
                         efforts and measures shall include, but not be limited
                         to, the following:

                                   (a)  all such efforts and measures as USR
                                   exerts and implements for the protection of
                                   its own trade secrets of a similar nature
                                   (which shall in no event comprise less than
                                   reasonable care and diligence);

                                   (b)  restriction of access to the Licensed
                                   Source Code to those employees of USR who
                                   have a bona fide need for such access in
                                   connection with the activities contemplated
                                   herein and 

                                       -6-
<PAGE>

                                   who have executed written instruments 
                                   acknowledging and agreeing to honor their 
                                   duties and obligations to maintain the 
                                   confidentiality and abstain from unauthorized
                                   use of such confidential and proprietary 
                                   information. In addition, USR shall maintain 
                                   a list of all such employees who at any time 
                                   have accessed the Licensed Source Code while 
                                   it is in the possession of control of USR and
                                   such list shall include, for each such 
                                   employee, his or her name, title and a brief 
                                   summary specifying the portions of the 
                                   Licensed Source Code which he or she has 
                                   accessed and setting forth the reason that 
                                   such employee needed such access.

                                   (c)  maintenance of all copies of the
                                   Licensed Source Code in a physically secure
                                   place and on computers the use of and access
                                   to which are restricted to authorized
                                   personnel.  USR shall further notify Licensor
                                   of the location of all copies of the Licensed
                                   Source Code.

                                   (d)  prompt destruction or return to Licensor
                                   of all copies of the Licensed Source Code
                                   upon termination of this Agreement or upon
                                   Licensor's request in the event of
                                   termination of the right and license granted
                                   herein for the Licensed Source Code in
                                   accordance with Section 3A.1.4 below.  Except
                                   in the case of a material breach by USR of
                                   the provisions of this Section 3A.1.2., USR
                                   may retain a copy of any portions of the
                                   Licensed Source Code which are reasonably
                                   required to fix "Bugs" which have been
                                   reported by USR to Livingston prior to such
                                   request.  All Licensed Source Code shall be
                                   returned to Livingston or destroyed upon
                                   repair of the reported "Bugs" or upon the
                                   expiration of three months following the date
                                   of such request, whichever is earlier.

                                   (e)  In all cases in which USR destroys
                                   Licensed Source Code as set forth herein USR
                                   shall provide to Licensor a written
                                   certification signed by an officer of USR
                                   which states that such destruction has been
                                   accomplished in accordance with the terms of
                                   this Agreement.

          3A.1.3         Subject to reasonable undertakings by Livingston with
                         respect to maintaining the confidentiality and
                         restraining from unauthorized use of USR's confidential
                         and proprietary information, Livingston shall be
                         afforded, upon request, reasonable opportunities to
                         observe and evaluate the adequacy of the efforts and
                         measures exerted and implemented by USR 

                                       -7-
<PAGE>

                         with respect to its obligations to maintain the 
                         confidentiality and prevent unauthorized use of the 
                         Licensed Source Code.

          3A.1.4         Livingston shall have the option to terminate the right
                         and license to the Licensed Source Code granted herein
                         at any time on or after August 31, 1996, as follows:

                              (a)  Such option shall be exercised by written
                              notice given to USR not less than one year prior
                              to the date on which the termination is to become
                              effective.

                              (b)  Livingston may request the return or
                              destruction of the Licensed Source Code at any
                              time on or after the effective date of such
                              termination.

                              (c)  Nothing in this Section 3A.1.4 and no notice
                              or request given pursuant hereto shall prevent
                              Livingston from requesting an earlier return or
                              destruction of the Licensed  Source Code upon
                              termination of this Agreement pursuant to and in
                              accordance with any other provisions of this
                              Agreement.

                              (d)  Notwithstanding the foregoing, during the
                              term of this Agreement and after the return or
                              destruction of the Licensed Software by USR,
                              Livingston agrees that in the event it fails to
                              fulfill its support obligations as set forth in
                              Section 5 hereof, Livingston will grant USR
                              personnel reasonable access to and use of the
                              Licensed Source Code at Livingston's facilities or
                              at the facilities of a mutually agreeable third
                              party so as to permit USR to perform such
                              maintenance and support functions in a reasonably
                              efficient and effective manner.

          3A.1.5         Upon termination of USR's rights to use the Licensed
                         Source Code pursuant to 3A. 1.4 above, USR may request
                         that the Licensed Source Code be placed and maintained
                         in Escrow with a recognized software Escrowee at USR's
                         expense to be held for release to USR upon mutually
                         agreed terms and conditions in the event that
                         Livingston fails or refuses to fulfill its obligations
                         to grant access pursuant to Section 3 A.1.4(d).

SECTION 4.    DEVELOPMENT PROJECT.

     4.1  SCOPE.  The Development Project shall be carried out by USR with the
          full support of Licensor, including but not limited to the provision
          by Licensor of the Licensor Development Services described in the
          Statement of Work set forth on Exhibit 4.1 attached hereto.

                                       -8-
<PAGE>

     4.2  PROJECT SCHEDULE.  Licensor agrees to cooperate with USR and make
          qualified personnel available at the times and places reasonably
          requested by USR for consultation with and to provide direct
          assistance to USR to the extent reasonably necessary to enable the
          Development Project to be completed in accordance with the schedule
          established.

     4.3  QUALITY OF WORK.  All of the Licensor Development Services shall be
          performed in a good and professional manner and the work product
          produced by Licensor's personnel shall meet or exceed all applicable
          industry standards for similar work as well as meeting the
          Specifications.

     4.4  THIRD PARTY SOFTWARE DEVELOPMENT.  As set forth in Exhibits 2.7 and
          4.1 attached, Livingston may obtain licenses for certain Third Party
          Software subject to a paid up license under which Livingston is
          entitled, upon payment of an additional license fee to sublicense such
          Third Parry Software to USR as a part of the Licensed Software.  Upon
          receipt from Licensor of satisfactory documentation evidencing such
          Third Party Software licenses and USR's potential rights as a
          sublicensee thereunder, USR shall promptly notify Livingston with
          respect to whether USR is willing to accept a sublicense of such Third
          Party Software.  If USR does accept a sublicense of such Third Party
          Software, USR shall promptly reimburse or pay the incremental license
          fees which Livingston shall have paid or become obligated to pay to
          the third party licensor with respect to such sublicense for USR as
          provided in Section 6.3 hereof.  If USR accepts the sublicense of the
          Third Party Software, USR must agree to accept all of the terms,
          conditions and restrictions of the Licensee agreement between
          Livingston and the third party as are applicable to sublicensees
          thereunder.

     4.5  JOINT EFFORTS; CROSS-LICENSING.  The parties agree that, except as
          otherwise specifically provided herein, the copyright and other
          intellectual property rights in any Code, Documentation or other work,
          trade secret or invention which is created, conceived or invented by
          either of them but which results directly from their joint development
          efforts and cooperation pursuant to this Agreement, shall belong to
          the party who creates such Code, Documentation or other work, trade
          secret or inventions.

          Further, except as they may otherwise agree in writing hereafter, the
          parties agree that in the event they should be deemed joint authors,
          joint creators or co-inventors of any such work, trade secret or
          invention, all intellectual property rights in such newly authored,
          created or invented work, trade secret or invention (excluding any
          portion thereof consisting of preexisting Source Code or Derivative
          Works thereof) shall be transferred and assigned, subject to the
          license back described below, to the party making the greatest
          contribution of time and effort, to creation and development work
          resulting in such work, trade secret or invention.  Licensor shall own
          all portions of any joint work consisting of pre-existing Source Code
          or Derivative Works thereof.

                                       -9-
<PAGE>

          Each such jointly created work, trade secret or invention shall be
          disclosed promptly by the creator or inventor thereof to the other
          party hereunder and such other party shall be granted a perpetual,
          royalty-free license to copy, make, use, sublicense and sell such
          work, trade secret or invention, subject only to such restrictions or
          are reasonably necessary to protect and preserve the owner's
          intellectual property rights therein.  However, except as may be
          otherwise specifically agreed in writing, nothing in this Section 4.5
          shall be construed as a transfer or unrestricted license by either
          party to the other of any of such party's Source Code which may be
          used by the other party in such joint effort.

SECTION 5.    SUPPORT AND MAINTENANCE: ENHANCEMENTS AND UPGRADES.

     5.1  INITIAL MAINTENANCE PERIOD.  During the period commencing on the date
          hereof and ending upon the expiration of one (1) year following first
          shipment of a production version of the Licensed Software in a USR
          Product, Licensor, at no additional charge to USR shall provide USR
          with (i)"Bug" fixes for all defects in the Licensed Software which are
          reported by USR or discovered independently by Licensor and (ii) all
          Maintenance Modifications to the Licensed Software which are otherwise
          created by or for Licensor, whether or not such Maintenance
          Modifications, are released to Licensor's other customers during such
          period. Licensor shall provide USR with copies of the Source Code for
          all such Bug fixes, and Maintenance Modifications, subject to the
          provisions of Section 3A hereof, on a timely basis, which shall in no
          event be later than the earlier of (i) the expiration of three months
          following implementation of the Bug fix, (ii) the release of
          Maintenance Modifications that incorporate it or (iii) its
          incorporation into a new standard release of the Licensed Software.

     5.2  ONGOING MAINTENANCE AND SUPPORT.  Following the initial maintenance
          period described in Section 5.1 above and so long thereafter as USR
          continues to pay royalties to Licensor pursuant hereto, Licensor shall
          make available to USR ongoing maintenance and support consisting of
          Maintenance Modifications ("Support Services") pursuant to an annual
          Software Support Agreement in the form attached as Exhibit 5.2.  In
          the event of any conflict or inconsistency between this Agreement and
          such Software Support Agreement, the provisions of this agreement
          shall control. USR may elect to purchase Support Services or choose
          not to on an annual basis, in its sole discretion such support
          services shall be provided for the compensation set forth in Section
          6.5.

     5.3  ENHANCEMENTS AND UPGRADES.  During the initial maintenance period
          described above, Livingston shall provide, at no additional charge
          beyond the royalties and other compensation payable hereunder, all
          Enhancements and Upgrades to the Licensed Software.  During all
          subsequent periods in which USR subscribes for Support Services,
          Licensor shall have an option to also offer any Enhancements and
          Upgrades to the Licensed Software to USR upon terms and conditions not
          less favorable than 

                                       -10-
<PAGE>

          those offered to any other of Licensor's Customers determined in 
          accordance with Section 6.4 of this Agreement.  USR shall be 
          responsible for distributing such Enhancements and Upgrades to its 
          customers who have purchased USR Hardware Platforms containing the 
          Licensed Software.

     5.4  CHANGES TO LICENSED SOFTWARE.   All Maintenance Modifications,
          Enhancements and Upgrades provided to USR pursuant to this Section 5
          and Exhibit 5.2 shall be and become Licensed Software subject to this
          Agreement. Licensor shall deliver complete Code and Documentation,
          including Source Code subject to the provisions of Section 3A, for all
          such Maintenance Modifications, Enhancements and Upgrades to USR
          promptly and in no event later than the first general release thereof
          to Licensor's other customers.

     5.5  COOPERATION BY USR.  USR will cooperate with Licensor in the
          maintenance and support of the Licensed Software during the term
          hereof by:

          5.5.1     promptly reporting any "Bugs" or other defects in the
                    Licensed Software which are discovered by USR;

          5.5.2     working, with the cooperation of Licensor. to develop
                    Enhancements and Upgrades to the Licensed Software which USR
                    deems to be desirable.  The Rights in such Enhancements and
                    Upgrades shall be determined as provided in Section 4.5.

     5.6  CUSTOMER SUPPORT PROCEDURES.

          5.6.1     USR will provide technical support to its customers and end
                    users of the USR Hardware Platform products incorporating
                    the Licensed Software, and will provide such technical
                    training to its resellers as USR in its discretion
                    determines to be necessary or appropriate.

          5.6.2     Livingston agrees to regularly supply bug notes or other
                    documentation defining the relevant hardware and software
                    information, symptoms, solutions, or work-arounds for major
                    Licensed Software problems.

          5.6.3     Livingston agrees to supply technical documentation that is
                    useful or necessary to perform customer support and
                    troubleshooting or to analyze the technical benefits and
                    risks of introducing a new software or hardware release of
                    the Licensed Software into USR's customer base.

          5.6.4     USR and Livingston agree to the following escalation policy
                    to manage problems that impact the performance of the
                    Licensed Software at end-user sites:

                                       -11-
<PAGE>

               (a)  If USR is unable to resolve a problem experienced by a
                    customer that is seriously impacting the performance of the
                    Licensed Software in the USR Hardware Platform products in a
                    customer's network, then USR technical services personnel
                    will call upon the designated engineering resources at USR
                    for assistance.  Within 5 business days, USR's Technical
                    Services and Engineering personnel will determine if contact
                    with Livingston is required.

               (b)  Within 5 business days of written or electronic mail
                    notification to Livingston's designated technical support
                    organization USR and Livingston will jointly agree to
                    classify the problem in one of three categories: (a) user
                    problem; (b) USR problem; or (c) Licensed Software problem. 
                    A "user problem" is one that is a consequence of user error,
                    and is not a function of an inherent problem with the
                    product or documentation. A 'Licensed Software problem' is
                    one that is a function of an inherent problem with the
                    product, and is likely the consequence of a "Bug" or other
                    apparent defect in the Licensed Software or Documentation as
                    developed and implemented by Livingston.  A "USR problem" is
                    any other problem.

               (c)  If the Parties cannot determine and agree on the correct
                    category for the problem by the end of 5 business days at
                    the level of their respective customer service and support
                    organizations, it will be immediately escalated to the
                    responsible product managers of the products at USR and
                    Livingston. Within 5 business days of that escalation. the
                    product managers will jointly establish an action plan and
                    timetable designed both to identify the category of the
                    problem, and, if USR so requests, to solve the problem for
                    the customer and the Parties will jointly execute that plan.

               (d)  A category (a) 'user problem' and category (b) 'USR problem'
                    should generally be managed by USR without additional
                    support from Livingston.

                    A category (c) 'Licensed Software problem' is a problem that
                    by definition may require support from and-involvement of
                    Livingston.  USR may elect to implement its own solution or
                    to request Livingston's assistance.  In the event that a
                    category (c) 'Licensed Software problem' is being worked on
                    by the Parties' respective service and support
                    organizations, no charges by Livingston to USR for support
                    will be justified or warranted during the Initial
                    Maintenance Period described in Section 5.1 and thereafter
                    during all periods for which the applicable support and
                    maintenance fees, as per Section 6.5, have been paid, and
                    Livingston will cooperate fully in the development of a
                    solution to the problem.  All Category (c) problems must be
                    brought to the attention of the responsible product managers
                    of the products at USR and Livingston.

                                       -12-
<PAGE>

               (e)  Within 5 business days of the decision that any given
                    problem is a category (c) 'Licensed Software problem, and
                    USR's determination to involve Livingston, Livingston and
                    USR will jointly develop and implement an action plan aimed
                    at eliminating the problem the customer is experiencing. 
                    Category (c) 'Licensed Software problem' will be further
                    classified into two categories, 1) Critical Problems and 2)
                    Non-Critical Problems.  Critical Problems are problems
                    classified by Livingston and USR as critical to the
                    fundamental operation of the USR product.  Livingston will
                    generate a fix for each such critical problem and send it to
                    USR on the appropriate media as soon as possible. 
                    Livingston will contact USR within five(5) working days as
                    to the status of resolution of the problem.  Non-Critical
                    Problems are problems which are not critical to the
                    fundamental operation of the affected USR product.  At USR's
                    request, Livingston will attempt to generate fixes for
                    problems classified by Livingston and USR as non-critical to
                    the fundamental operation of the affected USR Hardware
                    Platform products in the next release of the Licensed
                    Software. When possible Livingston will describe temporary
                    work-arounds to USR.

               (f)  Livingston acknowledges and agrees that Category (c)
                    'Licensed Software problems' which are critical problems or
                    are otherwise of material significance which remain
                    unresolved for an extended duration threaten the success of
                    the USR products in the market place, and may require that
                    USR gain access to the source code, if the Source Code is
                    not then otherwise in USR's possession pursuant to this
                    Agreement. USR has the right to identify unresolved category
                    (c) 'problems' of material significance that must be
                    resolved within the next three months by Livingston, after
                    which USR will be granted access to the Source Code as
                    specified in Section 3A.1.4(d) to implement a fix for its
                    customer base.  At no time will Livingston's rights in such
                    Source Code and documentation be transferred to USR.  USR
                    will have the right to distribute, royalty free, the fixes
                    so created in binary form to its customers.

     5.7  GOVERNMENT CONTRACTS.  USR agrees to include the following paragraph
          in all contracts and purchase orders for the Licensed Products
          supplied to the U.S. Government under a prime contract or to a
          contractor operating under a US. Government contract:

          "Use, duplication, or disclosure by the Government is subject to
          restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in
          Technical Data and Computer Software clause at 252.227-7013."

SECTION 6.    FEES AND ROYALTIES; PAYMENT.

                                       -13-
<PAGE>

     6.1  NON-RECURRING ENGINEERING FEES.  In consideration of the Development
          Services to be performed by Licensor, USR agrees to pay Licensor 
          non-recurring engineering fees totaling [CONFIDENTIAL TREATMENT
          REQUESTED], as follows:

          6.1.1     [CONFIDENTIAL TREATMENT REQUESTED] will be paid upon
                    execution and delivery of this Agreement;

          6.1.2     [CONFIDENTIAL TREATMENT REQUESTED] be paid upon satisfactory
                    completion of Phase I of the Development Project and 

          6.1.3     [CONFIDENTIAL TREATMENT REQUESTED] be paid upon satisfactory
                    completion of Phase II of the Development Project.

     6.2  ROYALTIES.  In consideration of the rights and licenses granted to USR
          pursuant to Section 3 hereof, USR agrees to pay royalties to Licensor,
          with respect to the Licensed Software, which royalties shall be
          computed as set forth in Exhibit 6.2 attached hereto (the
          "Royalties").  The Royalties shall be paid in accordance with the
          following procedure:

          6.2.1     Royalties shall be computed and paid an a quarterly basis
                    within 60 days following the end of each of USR's fiscal
                    quarters during the term hereof.

          6.2.2     Each Royalty payment shall be accompanied by USR's sales and
                    sublicense report which shall set forth in reasonable detail
                    the product sales and sublicenses of the Licensed Software
                    for such quarterly period upon which the  Royalties are
                    based and the calculations used by USR to determine the
                    amount of the Royalty payment then due.

          6.2.3     Licensor shall have the right, exercisable not more
                    frequently than once in any 12-month period, upon reasonable
                    notice and regular business hours, to inspect and review,
                    directly or through its certified public accountants, USR's
                    books and records which are related to sales of products and
                    grants of sublicenses relevant to the computation of the
                    Royalties for the sole purpose of verifying or testing the
                    accuracy of USR's reports and Royalty payments.  The costs
                    and expenses of such inspection shall be borne by Licensor
                    except that Licensor shall not be required to reimburse USR
                    for any time spent by USR staff or any USR overhead.

     6.3  THIRD PARTY SOFTWARE FEES.  Licensor shall be entitled to
          reimbursement for the out-of-pocket costs reasonably incurred by
          Licensor in connection with any sublicense to USR of Third Party
          Software included in the Licensed Software with USR's consent.  USR,
          at its option may decline to pay such sublicense fee, in which case,
          unless USR obtains the necessary license directly, the Enhancements to
          the Licensed Software provided by the Third Party Software will be
          omitted from the Licensed Software.  In 

                                       -14-
<PAGE>

          addition, if USR elects to accept a sublicense of any Third Party 
          Software from Livingston, USR will also be obligated to reimburse or 
          pay any incremental annual maintenance fees incurred by Livingston in 
          accordance with the license documents disclosed to USR with respect to
          the sublicense of the Third Party Software to USR.

     6.4  MOST FAVORED LICENSEE.  If at any time during the term of this
          Agreement, Licensor enters into a similar agreement with any other
          licensee with respect to the Licensed Software or other Software with
          essentially identical functionality, on terms, conditions or rates
          more favorable than those accorded to USR hereunder for amounts of
          royalty and fee revenues which are not demonstrably substantially
          greater than those paid or payable to Licensor pursuant hereto,
          Licensor shall, within thirty (30) days of its acceptance of the new
          agreement with the other licensee, notify USR of such transaction. 
          Within thirty (30) days of receipt of Licensor's notice, USR may give
          written notice to Licensor that this Agreement is to be amended to
          provide USR with the same terms, conditions and/or royalty rates
          provided to the other Licensee.  Such amendment shall be made
          retroactive to the effective date of the other licensee's agreement.

     6.5  SUPPORT AND MAINTENANCE FEES.  For Support Services provided by
          Licensor pursuant to Section 5.2 above (after the first year), USR
          shall pay an annual maintenance fee which does not exceed
          [CONFIDENTIAL TREATMENT REQUESTED] per year in the first year
          following the initial maintenance period.  In subsequent years the
          maximum annual maintenance fee will not exceed [CONFIDENTIAL TREATMENT
          REQUESTED]% ([CONFIDENTIAL TREATMENT REQUESTED]) of the previous
          year's fee.

SECTION 7.    LICENSOR'S WARRANTIES; INDEMNIFICATION.

     7.1  MEDIA WARRANTY.  For a period of ninety (90) days from the date of
          delivery of any item of the Licensed Software, to USR, Licensor
          warrants that the media in which such item of the Licensed Software is
          embodied and the media on which any later version or release is
          delivered will be free from defects in material and workmanship.

     7.2  NO SOFTWARE PERFORMANCE WARRANTY.  Licensor represents and warrants
          only that the Code (including Source Code) delivered by it to USR
          pursuant hereto constitutes a complete copy of the Licensed Software
          and the Licensed Source Code which Licensor has agreed to deliver
          pursuant hereto.  With respect to the operating and performance
          characteristics of such Code, Licensor delivers and USR accepts it "AS
          IS," without warranty.

     7.3  RIGHTS WARRANTY. Licensor warrants that it has the authority to enter
          into and perform its obligations under this Agreement and to grant the
          licenses provided herein. Licensor further warrants that, except for
          the Third Party Software, the Licensed Software is the property of
          Licensor, and with respect to the Third Party Software, the 

                                       -15-
<PAGE>

          Licensor has full rights under valid licenses covering the Third Party
          Software licensed to USR under this Agreement and the use and dealings
          therewith by USR and its successors, assigns and customers, immediate
          and intermediate.

     7.4  INDEMNIFICATION.  Licensor agrees to defend, indemnify and hold USR
          harmless against any claims that the Licensed Software infringes upon
          or violates any patent, copyright, trade secret, trade name,
          trademark, maskwork right or any other proprietary right of any third
          party (Intellectual Property Right").  If any claim that the Licensed
          Software infringes upon or violates any Intellectual Property Right is
          made against USR or its customers, USR shall promptly notify Licensor,
          and Licensor shall defend, indemnify and hold USR harmless against any
          and all liability, losses, damages, expenses (including attorney's
          fees) and demands of any kind arising out of any such claim, whether
          or not notorious or successful, provided that USR (i) gives Licensor
          reasonably prompt notice of such claim, (ii) fully cooperates with
          Licensor, at Licensor's expense, in the defense of such claim, and
          (iii) gives Licensor the right to control the defense and settlement
          of any such claim, except that Licensor shall not enter into any
          settlement that affects USR's rights or interests without USR's prior
          written approval.  USR shall have no authority to settle any claim on
          behalf of Licensor.

          If by reason of any such claim, USR or its customers shall be 
          prevented or are likely to be prevented from selling or using any USR
          Products, or if, in Licensor's opinion, such claim is likely to occur,
          Licensor will use its best efforts, at its expense, to (i) obtain all
          rights required to permit the sale or use of such products by USR and
          its customers; or (ii) modify or replace the Licensed Software to make
          it non-infringing (and extend this indemnity thereto), provided that
          any such replacement or modified Licensed Software are satisfactory to
          USR.  If Licensor is unable to achieve either of the options set forth
          above within a reasonable period of time after the issuance of an
          injunction, but in no event longer than one hundred eighty (180) days,
          Licensor shall promptly refund to USR an amount equal to all
          Royalties, if any, theretofore paid by USR to Licensor with respect to
          such products, plus the fees paid by USR pursuant to Section 6.1
          hereof, provided, however, that this refund obligation shall not apply
          in the case of an injunction affecting only Third Party Software.

     7.5  DISCLAIMER. THE LIMITED WARRANTIES AND INDEMNIFICATION CONTAINED IN
          THIS SECTION 7 ARE GIVEN AND MADE IN LIEU OF ALL OTHER WARRANTIES,
          EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT LIMITED TO ANY
          IMPLIED WARRANTIES OF MERCHANTABILITY.  FITNESS FOR A PARTICULAR
          PURPOSE OR NONINFRINGMENT.

SECTION 8.    TERM AND TERMINATION.

                                       -16-
<PAGE>

     8.1  TERM OF AGREEMENT.  This Agreement shall become effective on the first
          day that it has been executed by an authorized representative of USR,
          and by an authorized representative of Livingston.  Unless sooner
          terminated hereunder, this Agreement shall remain in force through
          expiration of all copyrights and other intellectual property rights in
          all Licensed Software.

     8.2  TERMINATION. USR may, at its option, terminate this Agreement at any
          time for any reason. Such termination shall become effective thirty
          (30) days after USR gives written notice of termination executed by an
          authorized representative of USR. Either party may terminate this
          Agreement in the event of a material breach by the other party which
          continues uncured ninety (90) days after the breaching party has
          received a written notice from the terminating party which describes
          the breach in reasonable detail.  If this Agreement is in effect for a
          period exceeding one (1) year and USR terminates this Agreement
          pursuant to the first sentence of this Section 8.2 with the intent of
          replacing Licensor's Code in the USR Hardware Platforms described in
          Exhibit 3.1.1 (to the extent, if any, that such Code has theretofore
          been integrated or incorporated into any of such USR Hardware
          Platforms) and any subsequent amendments thereto, without 180 days
          written notice, then royalty fees shall be paid with respect to the
          sales of Products which contain functionality that is substantially
          equivalent to that provided by the Licensed Software, with or without
          Livingston's Code, for a period of 180 days from the date of notice of
          termination.  Notwithstanding the forgoing sentence, USR shall have no
          obligation to make any such payment in the event that Livingston
          commits a material breach of its obligations under this Agreement or
          permits such a breach to remain uncured during such 180 day period or
          any portion thereof and nothing herein shall prohibit or restrict USR
          from independently developing or licensing any technology which is
          similar in function to the Licensed Software.

     8.3  TERMINATION BY LIVINGSTON.  In addition to its right to terminate as
          provided in Section 8.2 above. Livingston may. at its option.
          terminate this Agreement for any of the following reasons:

          8.3.1     USR breaches any obligation to pay any determinable amount
                    of money owed pursuant hereto which it fails to cure within
                    five (5) business days following receipt of written notice
                    thereof describing such breach and the amount or amounts
                    owed in reasonable detail.

          8.3.2     USR commits a material breach of its obligations under
                    Section 3A hereof which remains uncured fifteen (15)
                    business days following receipt of written notice thereof
                    describing such breach in reasonable detail.

          8.3.3     USR voluntarily effects termination of the OEM Supply
                    Agreement for any reason other than breach by Livingston or
                    mutual agreement of the parties thereto.

                                       -17-
<PAGE>

          Such termination shall become effective thirty (30) days after
          Livingston gives written notice of termination executed by an
          authorized representative of Livingston.

     8.4  SURVIVAL AFTER TERMINATION.  The termination of this Agreement shall
          not affect any liability of USR accrued pursuant hereto or any paid-up
          right or license granted to USR hereunder. In the event of termination
          of this Agreement, in whole or in part, any right, license or
          sublicense exercised or granted prior to such termination (including
          those for internal use by USR, USR's Subsidiaries, and other third
          parties such as dealers, distributors, agents, and customers), and any
          corresponding payment obligations of USR hereunder, shall survive and
          continue.  Without limiting the generality of the foregoing, (1) USR
          may sublicense, sell, lease and distribute any inventory of products
          based on or containing Licensed Software, including work in progress,
          on hand at the time of such termination, (2) USR may continue to
          exercise the rights and licenses granted hereunder for a period of up
          to six (6) months after termination to fill any orders received by
          USR, its Subsidiaries, distributors, agents or dealers received and
          accepted from their customers prior to the effective date of
          termination, and (3) USR may continue to exercise the rights and
          licenses granted hereunder as necessary to provide maintenance and
          support for customers.  Neither, USR, its Subsidiaries, dealers,
          distributors, agents nor customers shall have any obligation to return
          to Licensor any copies of Licensed Software or Derivative Works
          thereof made or obtained prior to such termination, except that, upon
          demand by Licensor following termination of this Agreement.  USR shall
          return to Licensor or destroy all copies of the Licensed Source Code
          and design Documentation for the Licensed Software as provided in
          Section 3A.

          In addition, the provisions of Sections 2, 3, 4.5, 7, 8, 10 and 11
          shall survive and continue with respect to all Licensed Software that
          is the subject of this Agreement at the time of termination.

     8.5  RESERVATION OF PUBLIC DOMAIN RIGHTS.  The existence, termination or
          expiration of this Agreement shall not be construed as eliminating or
          limiting any rights that USR, its Subsidiaries, dealers, distributors,
          agents and customers would have had if USR had never entered into this
          Agreement, including but not limited to rights to copy works that are
          in the public domain.

     8.6  INDEPENDENT DEVELOPMENT PROCEDURES.  During the time that USR is in
          possession of the Licensed Source Code delivered to it pursuant to
          Section 3A and for a period of nine (9) months thereafter, if USR
          undertakes or commences any independent development (as contemplated
          in Sections 8.2 and 11.1 herein) of any Code with functionality that
          is comparable to that of the Licensed Software, then USR shall comply
          with the following "clean room" procedures:

          8.6.1     No personnel who have accessed any portion of the Licensed
                    Source Code delivered to USR pursuant to Section 3A hereof,
                    which is related to the 

                                       -18-
<PAGE>

                    functionality that is the subject of such independent 
                    development (which shall include all persons whose names 
                    have been recorded in the list described in Section 
                    3A.1.2(b) and who are designated therein as having had such 
                    access), shall perform any such independent development 
                    work.  Further, no personnel who have accessed the Licensed 
                    Source Code shall disclose any information contained in the 
                    Licensed Source Code to, or otherwise consult with or 
                    advise, any persons performing such development work with 
                    respect to the development of Code having any functionality 
                    that is comparable to that of the Licensed Software.

          8.6.2     No personnel connected with such independent development
                    shall reverse engineer, disassemble or decompile any of the
                    Licensed Software.

          8.6.3     Such independently developed Code shall not include or
                    incorporate any Livingston trade secreted, proprietary,
                    copyrighted or patented materials, in any form.

          8.6.4     In order to ensure USR's compliance with the foregoing
                    measures, Livingston shall be entitled to inspect USR's
                    facilities and review its procedures, records and
                    development efforts, provided that Livingston and its
                    representatives may use the information obtained thereby
                    only for the foregoing purposes and shall maintain all such
                    information in confidence in accordance with Section 11.9
                    hereof and, provided further, that nothing herein shall
                    entitle Livingston to have access to any Source Code
                    licensed by USR from any third party.  The scope and timing
                    of any such inspection or review shall be agreed to by the
                    Parties, in good faith.

          8.6.5     Notwithstanding the foregoing, the Parties hereby agree that
                    if USR licenses or otherwise acquires Code that has
                    functionality comparable to that of the Licensed Software
                    and that was developed independently by any third party or
                    by USR personnel in accordance with the foregoing provisions
                    and ports such independently developed Code into any USR
                    product without enhancing or altering the functionality of
                    such Code in any material respect, such porting activity, in
                    and of itself shall not be deemed an independent development
                    effort subject to subsection 8.6.1 hereof.

SECTION 9.    NO UNDERTAKING TO MARKET.

     USR shall have full freedom and flexibility in its decisions concerning the
     development or marketing of products consisting of the USR Hardware
     Platforms that incorporate or are based on Licensed Software, including the
     decision of whether to market or discontinue marketing any particular
     product whether to offer products separately and/or in combination with
     other code and Documentation and in its decisions regarding terms,
     conditions and pricing.  Nothing in this Agreement, shall be construed as
     an obligation, guarantee or 

                                       -19-
<PAGE>

     commitment by USR that any product that incorporates or is based on the 
     Licensed Software shall be announced and marketed by USR, or that any 
     marketing effort will be productive of any particular level of sales or 
     of royalties or other additional payments to Licensor.

     It is understood that USR may license or transfer copies of products that
     incorporate or are based on Licensed Software at volume discounts,
     promotional or special charges, dealer discounts, special bids or other
     pricing arrangements and may increase or decrease any prices, charges or
     fees relating to any products, without notice to or approval of Licensor.

SECTION 10.   LIMITATION OF LIABILITIES.

    10.1  EXCLUSION OF CERTAIN DAMAGES.

          IN NO EVENT SHALL EITHER PARTY BE LIABLE TO THE OTHER FOR ANY
          CONSEQUENTIAL. INDIRECT, SPECIAL OR INCIDENTAL DAMAGES RESULTING FROM
          BREACH OF THE AGREEMENT, EVEN IF SUCH PARTY HAS BEEN ADVISED OF THE
          POSSIBILITY OF SUCH POTENTIAL LOSS OR DAMAGE.

    10.2  LIMITED LIABILITY.  In no event shall USR be liable for amounts in
          excess of the amounts payable in accordance with the terms of this
          Agreement and the applicable Schedules and Exhibits hereto.

SECTION 11.   GENERAL.

    11.1  FREEDOM OF ACTION.  This Agreement shall not be construed to limit
          either party's right to obtain services or software programs from
          other sources, or to prohibit or restrict either party from
          independently developing (in accordance with the provisions of Section
          8.6 hereof, or acquiring competitive materials.  Nothing in this
          Agreement restricts either Party from making, having made, using,
          leasing, licensing, selling or otherwise disposing of any products or
          services whatsoever, nor is either Party's right to deal with any
          other vendors, suppliers, contractors or customers limited thereby.

    11.2  ENTIRE AGREEMENT.  The provisions of this Agreement and the applicable
          Schedules and Exhibits hereto. in effect from time to time, constitute
          the entire agreement between the parties and supersede all prior
          agreements. oral or written. and all other communications relating to
          the subject matter hereof and thereof.

    11.3  GOVERNING LAW: VENUE.  This Agreement shall be construed and enforced
          in accordance with the laws of the State of California applicable to
          agreements between residents of California wholly executed and wholly
          performed in such state.  Any action or proceeding brought by either
          party against the other arising out of or related to this Agreement
          shall be brought only in a state or federal court of competent

                                       -20-
<PAGE>

          jurisdiction located in the State of California or the State of
          Illinois, and the parties hereby consent to the in personam
          Jurisdiction of said courts.

    11.4  SEVERABILITY.  This Agreement is intended to constitute an independent
          and distinct agreement of the parties. If any provision of this
          Agreement or Schedules and Exhibits hereto is held by a court of
          competent jurisdiction to be unenforceable or contrary to law, the
          remaining provisions of this Agreement and the Schedules and Exhibits
          hereto will remain in full force and effect.

    11.5  NOTICE; AND PAYMENTS.  Any notice required or permitted to be made or
          given by either party hereto pursuant to this Agreement will be
          sufficiently made or given on the date of issuance if sent by such
          party to the other party by mail. telecopy, commercial courier,
          personal delivery, or a similar reliable delivery method, addressed as
          set forth below or to such other address as a party shall designate by
          written notice given to the other party.

          In the case of USR:

               U.S. Robotics, Inc.
               8100 North McCormick Blvd.
               Skokie, IL 60076 
               Attn: Semir Sirazi

          With a copy to:   

               U.S. Robotics, Inc.
               9100 North McCormick Blvd.
               Skokie, IL 60076
               Attn: Legal Department

          In the case of Licensor:

               Livingston Enterprises, Inc.
               6920 Koll Center Parkway, # 220 
               Pleasanton, CA 94566 
               Attn: Mr. Steve Willens

          With a copy to:

               Livingston Enterprises. Inc.
               6920 Koll Center Parkway, 4220
               Pleasanton, CA 94566
               Attn: Vice President of Operations

                                       -21-
<PAGE>

    11.6  AMENDMENT; WAIVER.  No amendment or modification of this Agreement
          shall be effective unless it is set forth in a writing which refers to
          the particular provisions so amended or modified and is executed by
          officers of both parties. No waiver or any provision of this Agreement
          shall be effective unless it is set forth in a writing which refers to
          the provision so waived and the instrument containing such provision
          and is executed by an officer of the party waiving its rights.  No
          failure or delay by either party in exercising any right, power or
          remedy will operate as a waiver of any such right, power or remedy.

    11.7  TRADEMARKS AND ADVERTISING.  Nothing in the Agreement confers upon
          Licensor any right to use USR's trademarks, trade names or service
          marks in connection with any non-USR product, service, promotion,
          publication, or to adopt any trademark which is confusing similar to
          any Customer trademark or which includes a prominent portion of any
          USR trademark so as to indicate Licensor's product equivalence or
          affinity to, or applicability or compatibility with any USR product.
          Licensor may represent that its products operate in conjunction with
          or on certain USR products, if such is the case and if Licensees
          reference to USR is not misleading. USR may, at its option, identify
          the Licensed Software as having been developed by the Licensor.  USR
          shall take reasonable steps to modify any such reference to Licensor
          if Licensor objects in writing to the manner of such use.

    11.8  NOTICE OF BREACH.  Except in the event of a material breach of a
          provision contained in Section 3A hereof, USR shall not be deemed to
          be in breach of any of its obligations hereunder unless and until
          Licensor shall have given USR written notice by certified or
          registered mail, return receipt requested, specifying the nature of
          such breach and USR shall have failed to cure such breach within
          ninety (90) days after USR'S receipt of such written notice.

    11.9  CONFIDENTIALITY.  In order to protect their respective trade secrets
          and other proprietary or confidential information which the parties
          have therefore disclosed or may hereafter disclose to one another in
          connection with the negotiation and preparation of this Agreement or
          with the performance by the parties of their respective duties and
          obligations hereunder, the parties have entered into a separate 
          Non-Disclosure Agreement dated and effective 11 November, 1993, a true
          and complete copy of which is attached hereto and incorporated herein 
          by this reference. The parties hereby agree that such Non-Disclosure
          Agreement shall hereafter cover all confidential information created
          or disclosed by either party pursuant hereto and that, in the event of
          any conflict or inconsistency between this Agreement and such 
          Non-Disclosure Agreement, the provisions of this Agreement shall 
          control.

    11.10 PUBLIC ANNOUNCEMENTS.  USR and Licensor further agree that their 
          discussions relating to this Agreement and the existence and terms 
          hereof shall be treated as confidential and neither party shall issue
          any press release or make any public announcement with respect thereto
          without the prior review and approval of the other party.

                                       -22-
<PAGE>

    11.11 ASSIGNMENT.  This agreement will bind and inure to the benefit of the 
          respective Party's successors and assigns; provided that USR may not 
          assign (or delegate) this Agreement, in whole or in part, without 
          Livingston's prior written consent. Any attempted assignment (or 
          delegation) without such consent shall be void.

    11.12 INJUNCTIVE RELIEF.  If USR breaches any of the provisions contained in
          Sections 3, 3A, 8.6, 11.7, 11.9 or 11.10 (or if Livingston reasonably 
          anticipates such a breach), then Livingston shall be entitled, in 
          addition to any other remedy available to it, to injunctive relief 
          enjoining such breach. USR acknowledges that other remedies would be 
          inadequate in the event of such a breach. If Livingston breaches any 
          of the provisions contained in Sections 3, 3A, 4, 5, 7, 8.6, 11.7, 
          11.9 or 11.10 (or if USR reasonably anticipates such a breach), then 
          USR shall be entitled, in addition to any other remedy available to 
          it, to injunctive relief enjoining such breach.  Livingston 
          acknowledges that other remedies would be inadequate in the event of 
          such a breach.


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


U.S. ROBOTICS, INC.                    LIVINGSTON ENTERPRISES, INC.
("USR")                                ("Licensor")

By: /s/ George A. Vineyard             By: /s/ Ronald H. Willens
   --------------------------------       ----------------------------------

Name:  George A. Vineyard              Name: Ronald H. Willens  
     --------------------------------       --------------------------------

Title:   Vice President                Title: Vice President Operations
      --------------------------------       -------------------------------

                                       -23-
<PAGE>

                             EXHIBIT 2.7

                                 TO

           OEM SOFTWARE LICENSE AND DEVELOPMENT AGREEMENT

                       DATED SEPTEMBER 1, 1994

                               BETWEEN

                    LIVINGSTON ENTERPRISES, INC.

                                 AND

                         U.S. ROBOTICS, INC.

  LICENSED SOFTWARE, LICENSED SOURCE CODE AND SYSTEM SPECIFICATIONS

The programs listed below as Licensed Software which may be ported to execute 
in machine-readable (binary) form in the USR Hardware Platforms, specified 
UNIX or DOS based hosts, or remote user client machines, comprise the 
"Licensed Software" and are included under this Agreement.  The Licensed 
Software is described below and in the related manuals at time of execution 
of this Agreement which are attached hereto and made a part hereof.  As 
required by the Agreement, Licensor shall also make the related Source Code 
which is listed or described below as Licensed Source Code or Additional 
Source Code available to USR.  As used herein. all references to "UNIX" mean 
only the following specified releases:

                (i)  Sun Platform: OS4.1.3. Solaris and subsequent revisions
               (ii)  Hewlett Packard 9000 Platform: HPUX 9.3 and subsequent
                     revisions
              (iii)  IBM-RS 6000 Platform: AIX Rel.3.2 and subsequent
                     revisions.

LICENSED SOFTWARE (OBJECT CODE)

1.  The executable Object Code generated by Licensor's Source Code for Release
    [CONFIDENTIAL TREATMENT REQUESTED] of the Portmaster Model PM-2E dated June
    1, 1994.

2.  The executable Object Code generated by Licensor's Source Code for the
    Frame Relay Protocol from Release [CONFIDENTIAL TREATMENT REQUESTED] of the
    IRX Router product.  This specifically excludes hardware device drivers
    which send and receive HDLC data frames.

3.  The executable Object Code distributed by Licensor as a DOS device driver
    known as PPPODI.COM version 1.9 and a Microsoft Windows virtual device
    driver known as PPVXD.386 version 1.0.  These device drivers provide an
    Ethernet system interface to the client IBM compatible PC (386 only) and
    send and receive PPP compliant network frames for the TCP/IP and IPX
    protocols.


                                    2.7.1
<PAGE>

4.  The executable Object Code distributed by Licensor as a DOS executable
    known as NWTELNET.EXE version 1.4.  This utility program provides
    administrative telnet access to a host using the SPX/IPX protocol.

5.  The executable Object Code distributed by Licensor as both a DOS executable
    and a UNIX executable known as PMDIAL version 1.3.  This utility initiates
    a dial-our SLIP or PPP session on a host which supports the functionality
    of the Portmaster Model PM-2E running Release [CONFIDENTIAL TREATMENT
    REQUESTED]

6.  The executable Object Code distributed by Licensor as a UNIX executable
    known as PM-OPEN version [CONFIDENTIAL TREATMENT REQUESTED] referred to in
    product documentation as PMCONSOL for X windows).  This management
    application utilizes the X Window systems.  This executable application is
    specifically licensed to Licensee until September 1, 1995.

7.  The executable Object Code distributed by Licensor as both a DOS executable
    and a UNIX executable known as PMRESET version 1.3.  This utility resets a
    serial port on a host which supports the functionality of the Portmaster
    Model PM-2E running Release [CONFIDENTIAL TREATMENT REQUESTED]

8.  The Object Code library known as PMLIB for Release [CONFIDENTIAL TREATMENT
    REQUESTED] of the Portmaster Model PM-2E.

9.  The executable Object Code known as the boot prom code (other than BIOS
    specific Code which is licensed from third parties) for the Portmaster
    Model PM-2E.

LICENSED SOURCE CODE

1.  The Source Code used to generate Licensor's Release [CONFIDENTIAL TREATMENT
    REQUESTED] of the Portmaster PM-2E dated June 1, 1994.

2.  The Source Code used to generate Licensor's Frame Relay Protocol from
    Release [CONFIDENTIAL TREATMENT REQUESTED] of the IRX Router product.  This
    specifically excludes hardware device drivers which send and receive HDLC
    data frames.

3.  The Source Code for the library known as PMLIB for Release [CONFIDENTIAL
    TREATMENT REQUESTED] of the Portmaster Model PM-2E.

4.  The Source Code for the boot prom (other than BIOS specific Code which is
    licensed from third parties) described above.

ADDITIONAL LICENSED SOFTWARE (OBJECT CODE) AND LICENSED SOURCE CODE PLANNED FOR
FUTURE DEVELOPMENT.


                                   2.7.2
<PAGE>

1.  Upgrade functionality which provides dial-in and dial-out capability for
    Appletalk over PPP.  for the Source Code licensing of this functionality,
    USR must either pay the Source Code licensing fee to the third party as
    described in the contract between Livingston and the third party or
    otherwise obtain the required license from the third party.

2.  Upgrade functionality for providing dial-out modem pooling for Macintosh
    computers on an Appletalk ethernet network.  For the Source Code licensing
    of this functionality, USR must either pay the Source Code licensing fee to
    the third party as described in the contract between Livingston and the
    third party or otherwise obtain the required license from the third party.

3.  Upgrades, Enhancements, and Maintenance Modifications made available in
    Licensor's general software distribution for the Portmaster Model PM-2E
    during the first year of this Agreement.

4.  Upgrade functionality, if any, that is developed in Phase 3 of the
    Development Project with respect to (1) Modem dial-out (sharing) with
    Novell Networks, (2) Additional Routing Protocols, (3) Event/Security
    Logging and (4) SNMP Configuration Management as described in the Statement
    of Work attached as Exhibit 4.1.

ADDITIONAL SOURCE CODE

From time to time Licensor may provide additional Source Code (including but 
not limited to the Source Code for PPODI) to Licensee for the purpose of 
debugging application problems.  Unless specified in writing by Licensor, no 
rights to this Source Code will be granted to Licensee.  This Source Code 
must be returned to Licensor within 90 days of receipt by Licensee.

SYSTEM SPECIFICATIONS FOR PHASE 1

Includes the current functionality of the Licensed Software as described the
manuals which are attached hereto and made a part hereof.

ADDITIONAL SYSTEM SPECIFICATIONS FOR PHASE 2

Additional functionality to be added in Phase 2 described in Exhibit 4.1 are 
also included under this licensing agreement.  The functionality to be added 
for Phase 2 includes:

- -   Appletalk over PPP
- -   Appletalk dial out/modem pooling

PHASE 3 (FUTURES) SYSTEM SPECIFICATIONS

Additional functionality which may be added pursuant to Phase 3 described in
Exhibit 4.1.

- -   Dial-out modem sharing for Novell networks, supporting the Novell NASI
    interface and Int14 method


                                   2.7.3
<PAGE>

- -   Additional Routing protocols
    -    OSPF
    -    BGP
    -    EGP
- -   Improved system and security event logging to Novell, Apple and UNIX
    servers
- -   Windows Virtual Driver (VxD replacement for PPPODI)
- -   SNMP Configuration management


                                   2.7.4
<PAGE>

                            EXHIBIT 3.1.1

                   SYSTEM INTEGRATION AND TESTING

                                 TO

           OEM SOFTWARE LICENSE AND DEVELOPMENT AGREEMENT

                       DATED SEPTEMBER 1, 1994

                               BETWEEN

                    LIVINGSTON ENTERPRISES, INC.

                                 AND

                         U.S. ROBOTICS, INC.

                       USR HARDWARE PLATFORMS


The Livingston Software is licensed to be incorporated and execute in the
following hardware platforms:

1.  Current and future Total Control WAN HUB (a rack mountable chassis with 17
    application slots, a mid-plane, a dual T1 direct connect interface, which
    may include 1 network management card, a gateway application card and up to
    16 quad modem cards, x.25 PAD, etc.) gateway application cards installed in 
    Total Control WAN/HUB products wherein such gateway application cards
    service only direct telco interfaces such as channelized T1/E1, Analog
    PSTN, primary rate ISDN and Switched 56 Connections.

2.  1 or 2 port units which may be developed consisting of standalone devices
    with a fixed configuration of 1 ethernet or token ring interface and either
    8 or 16 direct telco interfaces for analog PSTN, basic rate ISDN or
    Switched 56 service, but not primary rate ISDN.

3.  8 or 16 port units which may be developed consisting of standalone devices
    with a fixed configuration of 1 ethernet or token ring interface and either
    8 or 16 direct telco interfaces for analog PSTN, basic rate ISDN or
    Switched 56 service, but not primary rate ISDN.

4.  A standalone unit which may be developed consisting of a fixed
    configuration of 1 ethernet or token ring interface and one direct telco
    interface for primary rate ISDN service which supports 24 or 30 64-KBPS
    channels.


                                   3.1.1
<PAGE>

                             EXHIBIT 4.1

                                 TO

           OEM SOFTWARE LICENSE AND DEVELOPMENT AGREEMENT

                       DATED SEPTEMBER 1, 1994

                               BETWEEN

                    LIVINGSTON ENTERPRISES, INC.

                                 AND

                         U.S. ROBOTICS, INC.


                          STATEMENT OF WORK

Livingston and USR will primarily be responsible for completing certain work
during the phases of the project under this Agreement.  In all cases, timely
support will be required from either company to the party who is primarily
responsible for a functional area of the project.

PHASE 1

    OPERATING SOFTWARE
    The Livingston Operating Software includes the operating system, protocol
    stacks, call control/management code, and network interface drivers. 
    Livingston will prepare the code to be compiled by a 32-bit compiler and
    run in an Intel x86 protected mode environment.  USR will port this code to
    run in the Total Control Gateway card and Shared Access platforms under the
    VRTX operating system.

    GATEWAY CARD PACKET BUS
    USR will design the Packet Bus API and will port the Livingston code to
    this interface.  Livingston will directly assist in this effort.

    TOKEN RING NETWORK INTERFACE
    Each company will independently develop its token ring network interface
    cards and port the token ring drivers to their respective platforms.  USR
    will grant to Livingston an non-exclusive, paid-up license to use the
    source code for USR's proprietary token ring driver software.  Livingston
    shall not distribute, sub-license, transfer, sell or lease copies of the
    source code to any third party.  Livingston and its successors have the
    right to incorporate compiled versions, object code, in any of its products
    and may distribute, sub-license, transfer, sell or lease copies of the
    executable code which are bundled with the Livingston software.


                                   4.1.1
<PAGE>

    BOOT PROM/LOADER CODE
    A BIOS extension will be required in the USR Total Control Gateway card and
    Shared Access platforms to provide the functionality of TFTP boot, and
    software download into FLASH memory.  Livingston will provide the
    Portmaster boot prom source code (excluding any BIOS specific code that is
    licensed by Livingston from third parties) to be used as a reference to aid
    USR in this development.

    DOS/WINDOWS REMOTE CLIENT USER INTERFACE
    USR will develop its own user interface software for DOS and Windows for
    configuration and dialing, to be used with Livingston's PPPODI.  Source
    code modifications may need to be made to PPPODI to support this user
    interface as heretofore discussed by the Parties.

    NETWORK MANAGEMENT
    Livingston will replace all reference to "Livingston" and "Portmaster" in
    the UNIX versions of pmconsol. and replace them with names to be provided
    in writing by USR.  USR will distribute and support the UNIX version of
    pmconsol.

    USR will develop a Windows version of pmconsol which uses the pmlib library
    and such version shall become part of the Licensed Software.  USR will have
    to modify pmlib to, at minimum, add support for the Novell LAN Workplace
    protocol stacks and the WINSOCK interface.

    INSTALLATION AND UTILITY PROGRAMS
    USR will develop their own installation and utility programs, and use the
    Livingston version of these programs as reference.

    SYSTEM INTEGRATION AND TESTING
    Both companies will participate in the system integration and testing of
    the new products.  Livingston will provide to USR any test applications or
    test jigs that can aid in functional, stress, or production testing.

PHASE 2

    APPLETALK OVER PPP
    Livingston will develop an Appletalk connectivity solution, which will at
    least include routing protocols, zone information protocols, and service
    information protocols.  Additionally, dial-out shared modem (modem pool)
    support will be developed.  This functionality will be integrated into the
    base Livingston software by Livingston and ported to the USR platforms by
    USR.  Livingston may use Third Party software to accomplish this
    functionality.

PHASE 3 FUTURES

The following functionality is anticipated in future Livingston software
releases.  If developed, this functionality will be included with this Software
Licensing Agreement.  This functionality may be developed by either party or be
developed jointly.


                                   4.1.2
<PAGE>

    MODEM DIAL-OUT (SHARING) WITH NOVELL NETWORKS

    This is an important feature which will provide DOS INT14 and NovellNASI
    support for dial out modem sharing/pooling.

    WINDOWS VIRTUAL DRIVER
    Livingston will develop and make available to UR a VxD Windows virtual
    driver replacement for PPPODI.

    ADDITIONAL ROUTING PROTOCOLS
    Livingston may add support for OSPF and BGP routing protocols.

    EVENT/SECURITY LOGGING
    Phase 1 functionality is limited to logging security events to a UNIX
    syslog daemon.  Phase 1 event and security logging functionality may be
    adapted to work equally well in UNIX, DOS (Novell) and Apple environment,
    and additional event and security logging functionality may be added as
    jointly agreed.

    SNMP CONFIGURATION MANAGEMENT
    The current supports MIBII.  Livingston may extend SNMP management to fully
    support configuration of the system with SNMP.  USR will assist Livingston
    in developing an Enterprise MIB.


                                   4.1.3
<PAGE>

                             EXHIBIT 5.2

                                 TO

           OEM SOFTWARE LICENSE AND DEVELOPMENT AGREEMENT

                       DATED SEPTEMBER 1, 1994

                               BETWEEN

                    LIVINGSTON ENTERPRISES, INC.

                                 AND

                         U.S. ROBOTICS, INC.


             SOFTWARE MAINTENANCE AND SUPPORT AGREEMENT


          [LIVINGSTON SOFTWARE SUPPORT AGREEMENT ATTACHED]


                                    5.1
<PAGE>

                             EXHIBIT 6.2

                                 TO

           OEM SOFTWARE LICENSE AND DEVELOPMENT AGREEMENT

                       DATED SEPTEMBER 1, 1994

                               BETWEEN

                    LIVINGSTON ENTERPRISES, INC.

                                 AND

                         U.S. ROBOTICS, INC.

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

                    ROYALTY RATES AND COMPUTATION


1.  The Royalty payable with respect to Licensed Software embodied in or
    bundled with gateway cards for WAN Hub products shall be computed at the
    rate of:

              (1)  [CONFIDENTIAL TREATMENT REQUESTED] of the actual net
                   revenues received by USR from the sale of each gateway card;
                   incorporating the Licensed Software or

              (2)  [CONFIDENTIAL TREATMENT REQUESTED] for each dial-in modem
                   and/or RS232 port supported by such gateway card;

    whichever is greater.

    Notwithstanding the foregoing, the aggregate royalties paid by USR pursuant
    to this Agreement during any 12 month period with respect to gateway cards
    incorporating the Licensed Software and Upgrades thereto sold during such
    period divided by the aggregate number of dial-in modems and/or RS 232
    ports supported thereby shall equal an average of not less than
    [CONFIDENTIAL TREATMENT REQUESTED] per modem/port.  This computation shall
    be performed not less frequently than once each six (6) months and, in the
    event of a shortfall, USR shall have the option of paying sufficient
    incremental royalties to meet this requirement or giving Livingston the
    option to terminate this Agreement upon 180 days written notice.  The
    Parties agree to discuss the foregoing minimum average royalties per port
    during the 12th month following the first customer shipment of the gateway
    cards and to consider in good faith whether such provision should be
    amended in light of then prevailing market conditions.

2.  The Royalty payable with respect to Licensed Software embodied in or
    bundled with each stand-alone of 1 or 2 port LAN access server product,
    shall be computed at the rate of 


                                     6.1
<PAGE>

    [CONFIDENTIAL TREATMENT REQUESTED] of actual net revenue received by USR 
    from sales of such products.

    The Royalty payable with respect to Licensed Software embodied in or
    bundled with each stand-alone or rackmountable 8 or 16 port LAN access
    server product, or any standalone product supporting primary rate ISDN
    telco interfaces shall be computed at the rate of [CONFIDENTIAL TREATMENT
    REQUESTED] of actual net revenue received by USR from sales of such
    products.

3.  If USR provides Client Code or Upgrades to the Licensed Software to any of
    its customers or end users of the USR Hardware Platform products and
    imposes a separate fee or charge therefor, USR shall pay to Licensor an
    additional Royalty equal to [CONFIDENTIAL TREATMENT REQUESTED] of the
    actual net revenue derived by USR from such separate fees or charges.

4.  For purposes of this Exhibit 6.2 and the Agreement to which it is attached,
    "net revenue" means the payments actually received by USR with respect to
    sales of the products in question, less any rebates, refunds, returns,
    sales taxes, use taxes or other transaction taxes, shipping and other
    handling charges actually incurred by USR which are paid or owed to
    unrelated third parties and are separately invoiced to USR's customers.


                                     6.2
<PAGE>

LOGO

SOFTWARE SUPPORT AGREEMENT                       AGREEMENT NO. _______________
______________________________________________________________________________

CUSTOMER LOCATION (SITE)               CUSTOMER BILLING ADDRESS

____________________________________   _______________________________________
Name                                   Name

____________________________________   _______________________________________
Address                                Address

____________________________________   _______________________________________
City            State            Zip   City             State              Zip

____________________________________   _______________________________________
Primary Contact            Telephone   Customer PO No.

____________________________________
Alternate Contact          Telephone

This Agreement includes the Terms and Conditions and schedules attached
(collectively, the "Agreement") and is entered into by and between Livingston
Enterprise and the Customer set forth above.

1.0 Product Schedule

                                           Warranty
    Product #        Description          Expiration           Annual Charge
______________________________________________________________________________
1.
______________________________________________________________________________
2.
______________________________________________________________________________
3.
______________________________________________________________________________


Comments                                   Total Annual Charge $ _____________


Customer acknowledges that Customer has read, understands, and agrees to be
bound by the Terms and Conditions set forth in this Agreement.



__________________________________     Livingston Enterprises

By:_______________________________     By:___________________________________
         (Signature)                             (Signature)

__________________________________     ______________________________________
Name (Please print or type)            Name (Please print or type)

__________________________________     ______________________________________
Title                         Date     Title                             Date


                               Page 1 of 3
<PAGE>


SOFTWARE SUPPORT AGREEMENT
_____________________________________________________________________________

2.0  DEFINITIONS

2.1  "Products" mean all of the software items listed on the Product Schedule 
on the front side of this agreement and on any Supplemental Product Schedule.

2.2  "Software" means the software supplied by Livingston Enterprises.

2.3  "Site" means the location specified on the front side of the Agreement.

3.0  TERM OF AGREEMENT

3.1  This Agreement shall be effective on the Commencement Date specified on 
the front side provided it has been signed by an authorized Customer 
representative and accepted by Livingston Enterprises.

3.2  The initial term of this Agreement is twelve months from the 
Commencement Date.  the Agreement will be automatically renewed for 
additional annual periods at Livingston Enterprises' then prevailing support 
charges.  This Agreement may be terminated by either party at any time after 
the initial term by delivery of 60 days written notice.  If either party 
fails to perform its obligations under this Agreement and such failure 
continues for a period of twenty (20) days after written notice thereof, the 
other party shall have the right to terminate this Agreement.

3.3  Coverage for products added to this Agreement after the Commencement Date
shall commence at the expiration of the Products' warranty period and shall
terminate at the termination of this Agreement.  Coverage for added products
will be billed at Livingston Enterprises support rates prevailing at the time
the Products are added, at the same invoice frequency as other billings under
this Agreement.

4.0  ELIGIBILITY FOR SUPPORT

4.1  This Agreement shall apply to all Software Products supplied by Livingston
Enterprises located at the Site, including Products added after the Agreement's
Commencement Date.  When Customer purchases or licenses additional products from
Livingston Enterprises for shipment to the Site, Customer agrees to add these
products to this Agreement at Livingston Enterprises then prevailing support
charges.

4.2  Products must be at Livingston Enterprises specified revision level to be
eligible for coverage.  Products covered under warranty automatically meet this
requirement.

5.0  SERVICE PROVIDED

5.1  All services provided herein are performed within Livingston Enterprises'
normal working hours of 8 a.m. to 5 p.m. Pacific Tim, Monday through Friday,
excluding Livingston Enterprises holidays.

5.2  Livingston Enterprises will distribute new releases of Software on a 
periodic basis as stated in this Agreement.  Releases will be distributed on 
the same type of tape media on which the original product was delivered.  One 
(1) copy of Software will be sent for the Site covered by this Agreement.  
Customer agrees to install the new releases.

5.3  Livingston Enterprises will provide telephone consulting on the routine 
use and operation of the software.  Telephone consulting is limited to 
questions not explicitly covered in documentation provided by Livingston 
Enterprises. Telephone consulting will include software problem reporting 
service, which will be handled as follows:

Critical Problems - For problems classified by Livingston Enterprises as 
critical to the fundamental operation of the Product, Livingston Enterprises 
will generate a fix and send it to the Customer on the appropriate tape media 
as soon as possible.  Livingston Enterprises will contact the Customer with a 
status report within one (1) working day after the initial problem report 
call.

Non-critical Problems - Livingston Enterprises will attempt to install fixes 
for problems classified by Livingston Enterprises as non-critical to the 
fundamental operation of the Product in the next release of the Software.  
When feasible, Livingston Enterprises will describe temporary work-arounds to 
the Customer.

6.0  EXCLUSIONS

6.1  Livingston Enterprises obligation to provide support service under this 
Agreement is contingent upon proper use of the Product.  Livingston 
Enterprises shall be under no obligation to provide services under this 
Agreement should such service be required in Livingston Enterprises' opinion, 
because of failure of the Product caused by improper use, 


                               Page 2 of 3
<PAGE>

accident or because Software is not maintained at Livingston Enterprises 
specified release level.

6.2  On-site support by Livingston Enterprises personnel at the Site is not
provided under this Agreement.

6.3  Operating supplies or accessories such as magnetic tape are not covered by
this Agreement.

7.0  CUSTOMER RESPONSIBILITIES

7.1  Customer shall notify Livingston Enterprises immediately of Software
malfunction and provide Livingston Enterprises with complete information
concerning the malfunction.

7.2  Customer shall designate a Primary and Alternate system Administrator for
the Site.  Authorized use of telephone consulting services described herein is
limited to these designated System Administrators.

8.0  CHARGES

8.1  Support charges for this Agreement will be invoiced annually in advance. 
Invoices shall be due and payable upon receipt.

8.2  Livingston Enterprises may at its sole option immediately terminate or
temporarily suspend all of its responsibilities stated in this Agreement.  In
the event Customer is delinquent in the payment of any invoice from Livingston
Enterprises for a period in excess of thirty (30) days.

8.3  Customer will be invoiced for any Products added to this Agreement at the
expiration of the Product's warranty.  Charges for a partial period of coverage
shall be prorated on the basis of a 30-day month.

8.4  Livingston Enterprises may change support charges at any time after the
expiration of the minimum initial term upon providing sixty (60) days prior
written notice.

8.5  Charges for services not covered under this Agreement shall be invoiced at
Livingston Enterprises' time and materials rates in effect at the time service
is performed.

8.6  Charges are exclusive of all sales, use, and like taxes.  Customer shall
pay or reimburse Livingston Enterprises for all such taxes.

9.0  DISCLAIMER OF WARRANTY

9.1  LIVINGSTON ENTERPRISES DISCLAIMS ALL WARRANTIES EXPRESS OR IMPLIED 
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 
PARTICULAR PURPOSE.

10.0  LIVINGSTON ENTERPRISES LIABILITY TO THE CUSTOMER FOR DAMAGES FROM ANY 
CAUSE WHATSOEVER AND REGARDLESS OF THE FORM OF ACTION WHETHER IN CONTRACT OR 
TORT INCLUDING NEGLIGENCE, SHALL BE LIMITED TO THE PURCHASE PRICE OF THE 
SPECIFIC PRODUCT BEING SERVICED WHICH CAUSED THE DAMAGE.  LIVINGSTON 
ENTERPRISES SHALL NOT BE LIABLE FOR DAMAGES RESULTING FROM LOSS OF DATA, 
PROFITS, USE OF PRODUCTS, OR FOR ANY INCIDENTAL, INDIRECT, OR CONSEQUENTIAL 
DAMAGES IN CONNECTION WITH THIS AGREEMENT OR SERVICES OR MATERIALS PROVIDED.

11.0  GENERAL

11.1  This Agreement is the complete agreement between the parties with respect
to the subject matter therein, and supersedes all other understandings whether
written or oral, and may only be modified in writing signed by both parties.

11.2 The waiver of any breach or default under this Agreement shall not
constitute the waiver of any subsequent breach or default.

11.3  This Agreement shall be governed by the laws of California.


                               Page 3 of 3
<PAGE>

                           AMENDMENT NO. 1
          TO OEM SOFTWARE LICENSE AND DEVELOPMENT AGREEMENT

                       DATED SEPTEMBER 1, 1994

                               BETWEEN

                    LIVINGSTON ENTERPRISES, INC.
                                 AND
                     U.S. ROBOTICS ACCESS CORP.
                     (F/K/A U.S. ROBOTICS, INC.)


This Amendment (this "Amendment") is made effective December 17, 1996, by and 
between U.S. Robotics Access Corp.  ("USR") (formerly U.S. Robotics, Inc.) a 
Delaware corporation with executive offices at 8100 N. McCormick Blvd., 
Skokie, IL  60076, as licensee, and Livingston Enterprises, Inc. 
("Livingston" or "Licensor"), a California corporation with its executive 
offices at 4464 Willow Road, Pleasanton, CA  94588.  USR and Livingston are 
sometimes referred to herein individually as a "Party" and collectively 
"Parties."

WHEREAS, the Parties heretofore entered into a certain OEM Software License 
and Development Agreement dated September 1, 1994 (the "License Agreement"); 
and

WHEREAS, the Parties have had certain disputes and engaged in litigation with 
respect to the interpretation of the License Agreement; and

WHEREAS, the Parties now wish to settle and compromise such disputes and 
litigation and, in connection therewith, desire to amend the License 
Agreement as set forth herein.

NOW, THEREFORE, in consideration of the premises, and other good and valuable 
consideration, the receipt and sufficiency of which are hereby acknowledged, 
the Parties hereby agree as follows:

1.   Except as otherwise expressly provided herein or as the context 
otherwise clearly requires, all references to capitalized terms set forth in 
this Amendment shall have the same meanings as provided in the License 
Agreement.

2.   This Amendment shall become effective upon its execution and delivery by 
both Parties, which may be effected with counterparts.  Upon and after the 
effectiveness of this Amendment, all references in the License Agreement as 
amended hereby to "this Agreement" shall mean and included the License 
Agreement as so amended.

3.   Section 2.9 ("Maintenance Modification") of the License Agreement is 
hereby amended by the deletion of the words "changes or" appearing after the 
words "or make other" in the third line thereof. 

<PAGE>

4.   Section 3.1 of the License Agreement is hereby amended by the deletion 
of the word "perpetual" appearing after the word "non-transferable" in the 
third line thereof.

5.   Section 3 of the License Agreement is hereby modified by the insertion 
at the end thereof of a new Section 3.5 as follows:

          3.5  ACKNOWLEDGMENT OF COMOS.  Commencing on and after
          January 1, 1997, USR shall exert commercially reasonable
          efforts to acknowledge in its marketing, advertising and
          product promotional materials, where appropriate, for USR
          products which incorporate some portion of the Licensed
          Software, the fact that the USR Code developed for such
          products is based upon Livingston's ComOS Code under
          license.  The Parties acknowledge that advanced commitments
          are required for the production and distribution of many
          marketing, advertising and product promotion materials and
          that USR will not be expected to revise all such materials
          immediately, but that USR will exert commercially reasonable
          efforts to complete such revisions within 120 days of
          January 1, 1997.

6.   Section 3A.1.2(d) is hereby amended to delete the second and third
sentences.

7.   Section 3A.1.4 of the License Agreement is hereby amended in its entirety
to read as follows:

          3A.1.4.  The right and license to the Licensed Source code
          granted in this Section 3A shall terminate at the close of
          business on [CONFIDENTIAL TREATMENT REQUESTED], except as
          otherwise expressly provided in Section 3A.1.5 below or as
          otherwise authorized in writing by Livingston.  Such
          termination shall become effective on such date without any
          further act or notice on the part of Livingston.

8.   Section 3A.1.5 of the License Agreement shall be amended in its entirety 
to read as follows:

          3A.1.5  Upon termination ([CONFIDENTIAL TREATMENT
          REQUESTED]) of the right and license to the Licensed Source
          Code granted pursuant to Section 3A, USR shall promptly (no
          later than three business days) return and deliver to a
          mutually agreed upon escrow agent (i) a true and complete
          copy of the most current version of Licensed Source Code
          including any code files containing any Derivative Works
          created by USR; and, (ii) a true and complete copy of the
          most current version of the Licensed source Code.  The
          escrow agent will hold such copies of the Licensed source
          Code intrust for the benefit of USR until [CONFIDENTIAL
          TREATMENT REQUESTED], for the sole purpose of USR access for
          the customer support and maintenance purposed that are
          described below and for archival purposes.  Such escrow
          account will be maintained at the sole cost of USR and will
          be in accordance with the terms and conditions and
          substantially in the form as set forth in Exhibit 3A.1.5. 
          All other copies of the Licensed Source Code described above
          shall be removed from backup and destroyed by USR in
          accordance with Sections 3A1.2(d) and (e) of the Agreement.


                                       2
<PAGE>

          USR shall have the right, until [CONFIDENTIAL TREATMENT
          REQUESTED] to receive from the escrow agent the Licensed
          Source Code (or any appropriate portions) under the
          following conditions and circumstances:

               A.   Use of the Licensed Source Code by USR shall be
                    strictly limited to the maintenance and support of
                    its customer base which has sublicensed the 
                    Licensed Software under the terms of the
                    Agreement.  Specifically, such maintenance and
                    support shall be limited to: (i) Bug fixes,
                    (ii) Maintenance Modifications, (as such
                    definition has been revised herein) and
                    (iii) identification and correction of "latent
                    defects" in the Licensed Source Code which cause
                    "significant" problems for USR customers.  It is
                    expressly agreed by USR that under no
                    circumstances shall the Licensed Source Code be
                    used for the development of Enhancements or, to
                    accomplish any feature advances in the Licensed
                    Source Code and/or Licensed Software.  The 
                    reference model for such a determination shall be
                    Livingston's ComOS, as  archived in the escrow
                    account referred to above.

               B.   To effect a release of the Licensed Source Code by
                    the escrow agent, USR  shall submit to the
                    designated Livingston contact (specified in E.
                    below), a  written Notice requesting the Licensed
                    Source Code which shall contain the  following 
                    information:

                    (i)  a description of, and relevant information relating to,
                         the nature of the Bug, Maintenance Modification, or
                         "latent defect" in the Licensed Source Code;

                    (ii) whether the above has been duplicated;

                   (iii) why USR believes that it needs the Licensed Source
                         Code to fix the Bug, perform the Maintenance
                         Modification or fix the latent defect;

                    (iv) an estimate of the time necessary to perform the
                         authorized work.

               C.   Acceptance of a USR request based on the Notice
                    described above shall not  be unreasonably
                    withheld by Livingston.  Livingston will use its
                    "best efforts"  to notify the escrow agent to
                    release the Licensed Source Code to USR as soon as
                    is practically possible, but no later than five
                    (5) business days following receipt of USR's
                    Notice.  When USR has completed its authorized use
                    of the  Licensed Source Code, it will delete all
                    copies that it has obtained and certify to
                    Livingston that it has done so.

               D.   If Livingston rejects the USR request, based upon
                    good faith concern that the request appears to be
                    outside the authorized scope of use, it will
                    notify USR of such rejection within five (5)
                    business days following receipt of USR's Notice. 
                    The parties will then attempt to negotiate in good
                    faith, to resolve any 


                                      3
<PAGE>

                    misunderstandings and resolve the issue.  If necessary, 
                    the negotiations will be escalated to designated officers 
                    (specified below) of the respective parties.  If, within 
                    a period of fifteen (15) business days, the parties have 
                    not resolved their dispute, the matter will be submitted 
                    to a third party arbitrator, to be designated in advance 
                    by the parties.  Such arbitrator will be familiar with 
                    software issues and computer law, the costs of the 
                    arbitrator to be split between the parties.  The parties 
                    agree to use all reasonable efforts to resolve the matter 
                    within thirty (30) days of the engagement of the 
                    arbitrator.  The parties agree to abide by the decision 
                    of the arbitrator on whether the Licensed Source Code 
                    shall be released to USR by the escrow agent.

               E.   The primary Livingston contact for Notices shall
                    be Carl Rigney, the secondary Livingston contact
                    shall be David Hanson, with copies to Richard
                    Godfrey. The primary USR contact authorized to
                    submit notices shall be Ken Peirce, with copies to
                    Rebecca Maxwell.  The designated Livingston
                    officer for escalation shall be Steven Willens. 
                    The designated USR contact for escalation shall be
                    Ross Manire.  The parties agree to immediately
                    notify one another upon the changes of any of the
                    above contacts.

               F.   Upon termination of the Agreement on [CONFIDENTIAL
                    TREATMENT REQUESTED], USR will  immediately remove
                    and destroy all copies of Licensed source Code in
                    its possession, and the Escrow Agreement will
                    terminate.  The escrow agent will then destroy all
                    copies of the Licensed Source Code in its
                    possession.

9.   Section 5.2 of the License Agreement shall be amended in its entirety to
read as follows:

          5.2   ONGOING MAINTENANCE AND SUPPORT.  From and after
          September 30, 1996, Livingston shall have no ongoing
          maintenance or support obligations to USR in connection with
          the Licensed Software, except that Livingston shall provide
          to USR, upon request, copies of any and all support and user
          documentation, bug fix notes, troubleshooting tips, etc.
          which Livingston routinely provides to its customers using
          any version of Livingston's ComOS.

10. Section 8.1 of the License Agreement is hereby amended in its entirety to
read as follows:

          8.1  TERM OF AGREEMENT.  This Agreement shall become
          effective on the first day that is has been executed by an
          authorized representative of USR and by an authorized
          representative of Livingston.  Unless sooner terminated as
          provided hereunder, this Agreement shall expire on
          [CONFIDENTIAL TREATMENT REQUESTED].

11. Section 8.4 of the License Agreement is hereby amended in its entirety to
read as follows:


                                      4
<PAGE>

          8.4  SURVIVAL AFTER TERMINATION/EXPIRATION. The termination
          or expiration of this Agreement shall not affect any
          liability of USR accrued pursuant hereto or any paid-up
          right or license granted to USR hereunder.  In the event of
          termination or expiration of this Agreement, in whole or in
          part, any right, license or sublicense exercised or granted
          prior to such termination or expiration (including those for
          internal use by USR, USR's Subsidiaries, and other third
          parties such as dealers, distributors, agents, customers,
          and endusers), and any corresponding payment obligations of
          USR hereunder, shall survive and continue and the rights of
          USR to further market, distribute and sublicense the
          Licensed Source Code shall terminate.  Without limiting the
          generality of the foregoing, (1) USR may for a period of two
          (2) months, sublicense, sell, lease and distribute any
          inventory of products based on or containing Licensed
          Software, on hand at the time of such termination or
          expiration, (2) USR may for a term of two (2) months,
          continue to exercise the rights and licenses granted
          hereunder to fill any orders received by USR, its
          Subsidiaries, distributors, agents or dealers received and
          accepted from their customers prior to the effective date of
          termination or expiration, and (3) USR may indefinitely
          continue to exercise the rights and licenses granted
          hereunder as necessary to provide maintenance and support
          for customers.  Neither, USR, its Subsidiaries, dealers,
          distributors, agents nor customers shall have any obligation
          to return to Licensor any copies of Licensed Software or
          Derivative Works thereof made or obtained prior to such
          termination.

          In addition, the provisions of Sections 2, 4.5, 7, 8, 10,
          and 11 shall survive and continue with respect to all
          Licensed Software that is the subject of this Agreement at
          the time of termination.

12.  Section 8.2 of the License Agreement shall be amended by the deletion of 
all of the text thereof appearing after the words "in reasonable detail" at 
the end of the third sentence thereof.

13.  Section 11.5 of the License Agreement shall be amended by the substitution
of the name "Rick Spotts" for "Semir Sirazi" as the principle contact person for
notices sent to USR, and by the substitution of the following for the address
for Livingston Enterprises, Inc. to which notices and copies of notices
addressed to Livingston shall be sent: 4464 Willow Road, Pleasanton, CA 94588.

14.  The License Agreement shall be further amended by the deletion of the 
following sections, subsections and exhibits: 2.3 ("Development Project"); 
2.4 ("Licensor Development Services"); 2.12 ("Third Party Software"); 2.15. 
("OEM Supply Agreement"); 4.1 (Scope); 4.2 (Schedule); 4.3 (Quality of Work); 
4.4 (Third Party Software Development); 5.1 (Initial Maintenance Period); 5.3 
(Enhancements and Upgrades); 5.4 (Changes to Licensed Software); 5.5 
(Cooperation by USR); 5.6 (Customer Support Procedures); 6.1 (Non-Recurring 
Engineering Fees); 6.3 (Third Party Software Fees); 6.5 (Support and 
Maintenance Fees); 8.3.3; Exhibit 4.1 and Exhibit 5.2.

15.  Except as expressly otherwise provided in this Amendment, the terms, 
conditions and provisions of the License Agreement shall continue in full 
force and effect.


                                      5
<PAGE>

     IN WITNESS WHEREOF, the Parties have caused this Amendment to be executed
by their duly authorized officers, effective as of the date first set forth
above.


U.S. ROBOTICS ACCESS CORP.                 LIVINGSTON ENTERPRISES, INC.
("USR")                                    ("LIVINGSTON")


By:  /s/ George A. Vineyard                By:  /s/ Richard J. Godfrey
   -------------------------------------      --------------------------------

Name:  George A. Vineyard                  Name:  Richard J. Godfrey
     -----------------------------------        ------------------------------

Title: Vice President and General Counsel  Title:  General Counsel
      -----------------------------------        -----------------------------


                                      6


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission