EXHIBIT 12.3

                                                                          5/2000

                         PROFESSIONAL SERVICES APPENDIX

Except  as  specifically  provided  herein  or in the Professional Services Dear
Associate  letter  and current Professional Services Price Bulletin incorporated
herein  by  reference,  the  terms of the Associate Agreement shall apply to the
provision  by  NEC  America,  Inc.  ('NECAM")  of  Professional  Services to the
Associate.

1.   PROFESSIONAL  SERVICES
     ----------------------

     NECAM will provide professional  services to Associate in accordance with a
     Statement  of Work in the form  attached  hereto as  Exhibit A agreed to in
     writing by the parties.  NECAM reserves the right, in its sole  discretion,
     to  accept  or reject  any  proposals  for  professional  services  made by
     Associate.

     The term "NECAM" includes any employees or contractors retained by NECAM to
     complete  its   obligations   under  such   Statement  of  Work.  The  term
     "Professional  Services"  refers  to those  services  as more  specifically
     described in the Dear Associate  letter,  as may be amended or supplemented
     in  advance  in  accordance  with the Notice  provisions  of the  Associate
     Agreement.

2.   PERFORMANCE  AND  ACCEPTANCE  OF  PROFESSIONAL  SERVICES
     --------------------------------------------------------

     Professional  Services  will be  performed  solely by NECAM or its approved
     subcontractors.  The manner, means and methods used by NECAM to perform the
     Professional Services lie within the sole discretion and control of NECAM.

     Upon completion of the work set forth in the agreed upon Statement of Work,
     NECAM shall submit to Associate a  Certificate  of  Completion  in the form
     attached  hereto  as  Exhibit  B.  Within  two  days  of  receipt  of  such
     Certificate of Completion,  Associate shall  countersign  such  Certificate
     indicating  its  acceptance  of the Work or shall  submit to NECAM  written
     notice of specific objections thereto.  Failure of Associate to submit such
     written  objections  within two days  shall  constitute  acceptance  of the
     completion of the services.

3.   COMPENSATION  AND  PAYMENT
     --------------------------

     In consideration  of the performance by NECAM of the Professional  Services
     set forth in an agreed upon  Statement of Work,  Associate  shall pay NECAM
     the amount set forth on the then current NEC  Professional  Services  Price
     Bulletin or the customized  quotation issued by NECAM as may be applicable.
     NECAM reserves the right to require a deposit,  advanced payment,  progress
     payments,  or  other  assurances  of  payment  as  it  deems  necessary  or
     appropriate.


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4.   EXPENSES
     --------

     Associate  will be  responsible  for  travel,  economy  class  air or other
     transportation,  communications and other out-of-pocket  expenses which are
     reasonably necessary to provide Professional Services under this Agreement.
     Except as may be specified in an agreed upon Statement of Work,  NECAM will
     supply,  at its sole  expense,  all  equipment,  tools,  materials,  and/or
     supplies to accomplish the work agreed to be performed.

5.   INDEPENDENT  CONTRACTOR
     -----------------------

     NECAM is an  independent  contractor.  Neither  NECAM nor any  employees or
     subcontractors  of  NECAM  who  provide  consulting   services  under  this
     Agreement are agents or "employees" of Associate for any purpose, including
     but not limited to purposes of Social Security  (FICA) taxes,  unemployment
     insurance taxes, Worker's Compensation benefits,  health insurance,  or any
     other benefits which typically accompany an Employer-Employee relationship.
     The  Company  will  not  be  liable  for   withholding   any  amounts  from
     Consultant's  employees' gross  compensation,  nor will the Company provide
     any of the above-mentioned  benefits to any of the employees of Consultant.
     Consultant will be solely  responsible for withholding  payment of all such
     taxes,  if  applicable,  and for the  provision  of any such  benefits,  if
     desired,  to the employees of Consultant,  by independent means.  Except as
     specifically  authorized  in  writing,  neither  Consultant  nor any of its
     employees  will have any  authority,  implied or otherwise,  to execute any
     contract  or other  agreement  on  behalf  of the  Company,  or to make any
     representation,  commitment, or undertaking on behalf of the Company or any
     of its affiliates.

6.   OWNERSHIP  RIGHTS
     -----------------

     Any and all  written  materials  including  memoranda,  notes,  records and
     compilations of information  prepared by or for NECAM in performance of the
     Professional Services will belong to NECAM.

     Associate  hereby  grants to NECAM,  and NECAM hereby  accepts,  the entire
     right,  title,  and  interest  in and to any work  product  resulting  from
     NECAM's  performance  of  Professional  Services  (whether or not such work
     product is  considered  a  work-for-hire  under the  copyright  laws of the
     United  States) and to any  computer or  software  programs  which might be
     developed  by  NECAM  pursuant  to the  terms  of this  Agreement,  and all
     portions of such  programs,  including all  proprietary  rights  therein or
     based  thereon,  with the right to grant  licenses and  sublicenses  to any
     party,  without accounting to Associate or any of its employees or end-user
     customers,  under such programs and all portions  thereof.  Associate shall
     ensure that its  agreements  with its employees and end-user  customers are
     consistent with this provision and shall defend and indemnify NECAM against
     any claims by any of  Associate's  employees  or  customers  asserting  any
     right, title or interest in and to any such work product.

7.   WARRANTY
     --------

     For a period  of  thirty  days  following  acceptance  of the  work,  NECAM
     warrants that the  Professional  Services were performed in accordance with
     the agreed  upon  statement  of work.  NECAM's  liability  for any error or
     omission  in the  performance  of the  Professional  Services  during  such
     warranty period is limited


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                                                                          5/2000

     to (1)  correction or completion of the work; or (2) issuance of a pro rata
     credit.  NECAM shall select which of the above warranty remedies to utilize
     concerning any warranty  claim. In the event that Associate makes any claim
     under the  Professional  Services  warranty,  Associate  shall notify NECAM
     promptly  in  writing  of any  such  claims,  and  provide  NECAM  with  an
     opportunity to inspect and test any affected Products or system.  The above
     warranty  excludes  coverage  for affected  Products or systems  which were
     installed,  repaired or maintained by an unauthorized  service  provider or
     which  were  subjected  to  misuse,   abuse,   improper   installation   or
     application,  improper  maintenance  or  repair,  alteration,  accident  or
     negligence in use, improper  temperature,  humidity or other  environmental
     condition  (including,  but not limited  to,  lightning  or water  damage),
     storage,  transportation  or  handling,  unless  caused  by  NECAM  or  its
     authorized representative.

8.   LIMITATION  OF  LIABILITY
     -------------------------

     IN NO EVENT SHALL NECAM BE LIABLE FOR CONSEQUENTIAL, SPECIAL, INCIDENTAL OR
     SIMILAR DAMAGES,  SUCH AS (BUT NOT LIMITED TO) "DOWNTIME",  EXCESS COSTS OR
     LOST BUSINESS REVENUES  RESULTING FROM NECAM'S  PERFORMANCE OF PROFESSIONAL
     SERVICES,  ITS  BREACH  OF ANY OF THE  PROVISIONS  OF  THIS  APPENDIX,  ITS
     TORTIOUS  CONDUCT  IN OR  RELATED  TO THE  PERFORMANCE  OF ITS  OBLIGATIONS
     HEREUNDER, A PRODUCT OR SYSTEM MALFUNCTION OR FROM UNAUTHORIZED OR IMPROPER
     USE OF  PRODUCTS  OR  SYSTEMS  INCLUDING  BUT NOT  LIMITED TO TOLL FRAUD OR
     COMPUTER  VIRUSES.  NECAM's  liability  for any errors or  omissions in the
     performance of Professional  Services shall be limited to performing one of
     the remedies under the warranty set forth above. NECAM and ASSOCIATE hereby
     agree that if such  limitation is declared  invalid by a court of competent
     jurisdiction,  then NECAM's  liability  shall be limited  solely to a U. S.
     dollar  amount  equal to the price paid by Associate  for the  Professional
     Services provided by NECAM.  These remedies shall be exclusive and shall be
     the  ASSOCIATE's  sole remedies  against NECAM or any of its  affiliates or
     subcontractors  for claims  arising  from or relating to the  provision  of
     Professional Services.

9.   ASSOCIATE'S  RESPONSIBILITIES
     -----------------------------

     Associate  shall  obtain,  at its expense if any, all federal,  state,  and
     local permits and licenses required for the performance of the Professional
     Services.  In addition,  as NECAM shall not provide  Professional  Services
     using union labor or paying wages equivalent to union pay scales, Associate
     shall  be  fully   responsible   for  ensuring  that  its   utilization  of
     Professional  Services does not violate (1) any contractual  obligations it
     may have  relating  to the use of union  workers or union pay scales or (2)
     any other legal obligations under applicable labor laws or contracts.


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