<PAGE>

                                                                   EXIHBIT 10.15

SpeechWorks International, Inc. has omitted from this Exhibit 10.15 portions of
the Agreement for which SpeechWorks International, Inc. has requested
confidential treatment from the Securities and Exchange Commission. Omitted
language is indicated by brackets (i.e. [ ]). The portions of the Agreement for
which confidential treatment has been requested have been filed separately with
the Securities and Exchange Commission.

                                                                   June 29, 2000

SpeechWorks International, Inc.
695 Atlantic Ave.,
Boston, MA 02111
Attention: Joe Murphy

Dear Joe;


     This letter ("Letter") will serve to confirm that NET2PHONE, INC. ("N2P")
and SPEECHWORKS INTERNATIONAL, INC. ("SWI") are entering into a business
relationship whereby:

(i)   N2P has agreed to invest $4.0 million in SWI pursuant to the terms of that
      certain Common Stock Purchase Agreement dated as of even date herewith
      (together with the other agreements contemplated thereby);

(ii)  SWI will provide to N2P certain software as described in Exhibit A-1,
      attached and made a part of this Letter;

(iii) SWI will provide certain professional services, including but not limited
      to, (a) platform integration and (b) application development in connection
      with N2P's global VoIP network; and

(iv)  the parties may pursue certain joint marketing efforts as further agreed
      upon in an executed License Agreement proposed in this Letter.

     Part I of this Letter is intended by the parties to be binding and Part II
of this Letter shall be non-binding and expressly subject to the execution and
delivery of (1) a definitive Professional Services Agreement (the "PSA") and
Statement(s) of Work ( an "SOW") which shall be executed and delivered no later
than [ ], or a subsequent date as extended and mutually agreed upon by the
parties (the "Contract Date"). If for any reason the parties are unable to
consummate the License Agreement (as defined below) and the PSA, by the Contract
Date, the obligations set forth in this Letter, including but not limited to
Part I, and in that certain Non-Disclosure Agreement dated as of 2000 ("NDA"),
by and between the parties, the terms of such NDA which by their nature survive,
then either party may, upon written notice to the other, terminate this Letter,
and in the event of such termination, the parties agree that Net2Phone's sole
obligation and SWI's sole and exclusive remedy shall be that Net2Phone shall pay
SWI the License Fee as described in Paragraph A below in the amount of [ ] US
Dollars ($[ ]) and all reasonable professional service fees accrued hereunder as
of the date of such termination, under the current fee schedule as described in
Exhibit C, attached and made a part hereof.
<PAGE>

Part I.   BINDING TERMS.

A.   License Fees.

(1)  Initial Order. N2P hereby agrees to pay to SWI an amount equal to [ ]
     Dollars ($[ ]) in consideration for the grant of a license (the "License
     Fee") to N2P of the SpeechWorks software set forth on Exhibit A (the "SWI
     Software"). The terms of the license would be contained in a mutually
     agreed upon Master Software License Agreement ("License Agreement"), a
     draft form of which has been provided to N2P and which the parties agree to
     negotiate the terms of such License Agreement in good faith with the intent
     to execute and deliver said License Agreement no later than the Contract
     Date. The License Agreement would have a term of three (3) years (the
     "Term"). The $[ ] License Fee described in this paragraph A is a guaranteed
     and non-refundable payment.

     (1)  Subsequent Orders. Notwithstanding SWI's then-current fee schedule ,
          SWI agrees that for the Term of the License Agreement, for all
          subsequent orders received during the initial three year term
          (counting the one thousand (1000) Ports ordered in the initial
          order), the following per port discount schedule shall apply:

          AGGREGATE NUMBER OF PORTS IN THE INITIAL TERM    PRICE PER PORT

          [     ] - [     ]                                $[     ]
          [     ] - [     ]                                $[     ]
          [     ] - [     ]                                $[     ]
          [     ] - [     ]                                $[     ]
          more than [     ]                                $[     ]


B.   Revenue Share. In addition to the provisions described above, the
     parties hereby agree that the License Agreement shall contain the
     following provisions regarding the sharing of revenue.

     GENERAL

     N2P and SWI will share net revenue, as defined hereunder generated by
     or through the Facilities Services (defined below), as further defined
     in the proposed License Agreement and as outlined below. In accordance
     with the License Agreement  revenue will only be comprised of those
     fees due to N2P generated from joint offerings brought to market by
     SWI and N2P in a joint endeavour.

     In addition to the foregoing license fees, N2P agrees to pay to SWI
     the following fees (the "Utilization Fees") for  each customer of N2P
     utilizes the SWI Software in connection with the services provided by
     N2P (the "Facilities Services").

         (1)  [ ] percent ([ ]) of any net revenue N2P derives directly from
              selling products or services via the N2P speech system ("e-
              commerce"); and

         (2)  [ ] percent ([ ]) (net of the costs outlined in Exhibit B;
              "Infrastructure Costs") for all revenue derived from minutes (or
              partial minutes rounded up to the next whole minute).

                                                                          Page 2
<PAGE>

     Further, in the event that either of the following conditions occur
     (in a manner to be verified under procedures to be agreed to in the
     License Agreement) the applicable revenue sharing terms set forth
     below would apply:

         1.  SWI brings N2P into an opportunity that N2P has not been
             involved with before; or

         2.  SWI and N2P agree to co-develop a product or application for a
             specific industry or market with either party incurring their
             associated costs.

         In the event that the applicable condition precedent above is
         satisfied, N2P would pay to SWI an amount equal to:

     (1)  [ ] percent ([ ]) of any net revenue N2P derives directly from
          selling products or services via the N2P speech system ("e-
          commerce"); and

     (2)  the lesser of (x) $[ ] per minute and (y) [ ] (net of the costs
          outlined in Exhibit B; "Infrastructure Costs") for all revenue derived
          from minutes (or partial minutes rounded up to the next whole minute).

     Each N2P customer-specific revenue share transaction would provide for
     three (3) years of payments to SWI and such obligation  may survive the
     expiration of the three (3) year term of the License Agreement.

                                                                          Page 3
<PAGE>

C.   Most Favored Pricing

     The following fee provisions shall apply to the License Fees, SWI
     professional services fees requested by N2P, and text-to-speech (TTS)
     (if and when available) licenses which may be contracted by N2P in the
     License Agreement or in any mutually agreed upon agreements. During
     the term of the License Agreement or any other agreement mutually
     agreed upon between the parties, SWI agrees that it shall provide the
     [     ] to N2P [     ] in a transaction (considering all relevant
     material terms) in which [     ] or [     ]. In the event that SWI [
         ], it shall thereafter [     ] and [     ] and [     ] to be [     ].


D.   Roll Over Rights

     SWI hereby agrees that the covenant set forth in Section C above with
     respect to license fees shall be extended to all entities of which N2P
     owns (or acquires such interest in during the Term), at the relevant
     time, more than 50% of the voting shares. Further, in the event that
     N2P owns an equity interest in a third party which is 50% or less,
     then:

          (i)  in the event that such third party is already a customer of SWI,
               then SWI agrees that it shall allow (1) such third party to pay
               to SWI the difference between (x) the license fees which said
               third party had previously agreed to pay (such other fee to be
               known herein as the "Original Fee") and (ii) the license fees
               applicable to N2P and (2) N2P to pay the balance of the Original
               Fee; and

          (ii) in the event that such third party is not already a customer of
               SWI, then SWI may in its discretion enter in to a license
               agreement with such third party and in the event that such third
               party and SWI agree on the applicable license fees, then N2P
               shall have the opportunity to supplement such license fee
               payments as contemplated by clause (i) above .

     The parties agree that the revenue share provisions set forth above shall
     apply to any party described in this Section D which is licensing SWI
     software or using the Facilities Services.

E.   Professional Services.

(1)  Retainer. In order to secure the commitment of SWI Ito provide certain
     professional services, N2P hereby agrees to pay to SWI an amount equal to
     [  ] US Dollars ($[ ]) under the PSA ("Retainer"). Unless otherwise agreed
     upon by the parties in the PSA or an applicable SOW, this amount is subject
     to the terms of Paragraph F below, shall be due and owing to SWI no later
     than June 28, 2001 regardless of whether N2P accrues services fees in such
     amount prior to such date.

(2)  Work Authorization. Upon execution of this Letter, N2P shall be deemed to
     have authorized SWI to commence certain professional services activities as
     directed by N2P related to the initial project, and N2P agrees to pay SWI
     for services rendered in accordance with its current fee schedule up to an
     amount not to exceed the Retainer described above. Any amounts accrued
     under this interim Work Authorization section will be applied against the
     fees agreed to in the applicable SOW. Additionally, any travel expenses
     accrued may  be billed for the amount incurred, assuming that any required
     travel is approved in advance by N2P. In the event N2P and SpeechWorks
     execute a mutually acceptable PSA, such PSA will fully supersede, and make
     null void, this paragraph (2). N2P acknowledges and agrees that any
     deliverable developed in connection with the services rendered hereunder
     shall not be delivered to N2P until such time as a PSA has been executed.

                                                                          Page 4
<PAGE>

F.   Unused Services Fees Allowance. In the event that the aggregate fees
     accrued for the project(s) covered under an initial SOW, if any, equal an
     amount less than [ ] US Dollars ($[ ]), SWI shall allow N2P to apply the
     balance thereof to the purchase of additional licenses under the terms of
     the License Agreement; such application, if any, shall occur no later than
     June 28, 2001.

G.   Joint Obligations. Each party agrees it may undertake the following
     marketing and publicity activities in order to promote the relationship:

 .    CUSTOMERS - Each company agrees to explore the use of their existing
     customers to identify interested implementers of the Voice ASP service.

1.   CO-MARKETING - N2P and SWI  will work together, in good faith, to use
     commercially reasonable efforts to perform the following:

 .    N2P and SpeechWorks will work together to issue a formal, joint press
     release on the equity investment, and N2P will also supply a quotation to
     be used in the Open Speech Web announcement (to be complete Wednesday, June
     28th)

 .    N2P and SpeechWorks will jointly participate in press and analyst briefings
     regarding Net2Phone's equity investment in SpeechWorks

 .    N2P will promote the "SpeechworksHere" program in relevant Marketing
     promotions and collateral

 .    SpeechWorks will promote the N2P Voice ASP service in relevant Marketing
     promotions and collateral

 .    N2P and SpeechWorks agree to work together for joint promotion of the N2P
     Voice ASP commercial launch and subsequent Voice ASP (post-GA) milestones

 .    N2P and SpeechWorks agree to make to cite each other in relevant press
     releases and/or announcements.  Specifically:

     .    SpeechWorks will cite N2P as an investor-partner, ASP-provider and
          provider of yet-to-be-specified speech-based services where
          commercially appropriate,

     .    N2P will cite SpeechWorks in announcements relating to their speech-
          based initiatives where commercially appropriate.

                                                                          Page 5
<PAGE>

Part II. NON-BINDING TERMS. The following terms are agreed by the parties to be
non-binding and shall only express the intent of the parties as to activities
which shall only be agreed upon in a definitive License Agreement, PSA and
Applicable SoWs.

1.   CROSS-MEDIA PROMOTIONS & ATTRIBUTION:  Subject to prior written approval,
     not to unreasonably withheld or delayed:

 .    Each company can use the other company's logo/name in any web listings
     (i.e., customer/partner lists)

 .    N2P agrees to work  with SpeechWorks to pursue cooperative advertising
     with both parties contributing equally to the associated costs.

 .    N2P agrees to SpeechWorks' usage of the N2P logo on demand-generation
     vehicles (WSJ advertising, other advertising, direct mail, etc.)

 .    N2P agrees to let SpeechWorks use the N2P name and logo in IPO-related
     filings (eg: S-1)

 .    N2P agrees to participate in the SpeechWorks Conversations User/Partner
     conference in Laguna Niguel, CA, as a speaker

2.   REFERENCABILITY:  Pending N2P satisfaction with SpeechWorks performance
     against measurable success criteria and N2P internal policies, N2P agrees
     to be a reference for i.) other SpeechWorks prospects,. Additionally,  at
     N2P's sole discretion N2P may participate in a Case Study

3.   STANDARDS SETTING:  N2P and SpeechWorks agree to work together jointly
     develop, market, and offer as De Facto Standards to the market:

 .    VoiceXML and voice browsers

 .    SpeechLinks

 .    SpeechCookies

 .    Content and scripting tools

 .    SpeechSpot U.I. spec and implementation

     The parties agree that the following terms would provide the basis for an
     initial SOW:

A.   PLATFORM INTEGRATION SERVICES: SWI shall perform the following with the
     reasonable cooperation of N2P:

1.   Convert Audio Driver to use N2P protocol and convert IP packets into u-
     law PCM. This would essentially be re-writing of Prompt DLL and Record DLL

2.   Switch the TTS API to use SWI implementation of Lucent TTS. Done through
     SAPI.

3.   Provide an operational VXML browser. SWI will ship voice browser source
     code to N2P

4.   Provide training on any SWI implementation of VXML, in classroom setting

5.   Provide tools to convert applications to VXML operation. SWI will make
     available to N2P all internal tools that are currently used as well as any
     commercially sold tools when they are general release.

6.   Provide SpeechWorks licensed software and the VMXL browser software on
     SCO Unixware 7.

7.   Support SpeechLinks as a platform capability for Net2Phone speech
     services

SWI agrees that any costs associated with SWI's performance obligations, shall
be at SWI's sole expense.

                                                                          Page 6
<PAGE>

B.   APPLICATION DEVELOPMENT

     1.   Provide interface documentation and assistance with the implementation
          of the namedialer module (database, grammar generation and storing and
          again the TTS interface) in order to enable N2P personal voice dialing
          application. This will be delivered from SWI solutions group and
          follow the SADL process as with all application development projects.
          This will need to have a SCOPE OF WORK defined in order to accurately
          describe exact costs and time estimates for delivery.

     2.   Provide Speech Site for internal use

     3.   Speech Web Directory - provide infrastructure for N2P to run the
          application to enable any organization to register their site in Open
          Speech Web Directory.

     Part II of this Letter is non-binding and is intended to facilitate
negotiation and preparation of the License Agreement and PSA that will embody
the final understanding between the parties. Except as otherwise specifically
provided for herein, the obligations of the parties to consummate the
transaction contemplated by this Letter shall be subject in all respects to the
negotiation, execution and delivery of a definitive License Agreement and PSA .
Notwithstanding the foregoing, the $[     ] License Fee  payment obligation of
N2P set forth in Paragraphs 1A of Part I is agreed to be binding

     Please indicate your acceptance of the terms hereof by signing the enclosed
copy of this Letter on the line provided and returning it to the undersigned.

                                    Net2Phone, Inc.

                                    By:  /s/ Jon Fram

                                    Name: Jon Fram

                                    Title: President

Acknowledged and agreed:

SPEECHWORKS INTERNATIONAL, INC.


By:  /s/ Stuart R. Patterson
     Stuart R. Patterson,
     President and Chief Executive Officer

Date: June 29, 2000

                                                                          Page 7
<PAGE>

                                   EXHIBIT A
                                   ----------

                                 Initial Order

<TABLE>
<CAPTION>
------------------------------------------------------------------------------------------------------------------
PRODUCT NAME        PRODUCT DESCRIPTION                 RECOGNITION       SYSTEM      FEE/PORT OR        LICENSE
                                                            PORTS          SEATS           SEAT            FEES
------------------------------------------------------------------------------------------------------------------
<S>                 <C>                                  <C>             <C>           <C>             <C>
SpeechWorks         Includes:                               [    ]          N/A           [   ]          $[     ]
v. 6.1 with         . SpeechWorks Recognition Engine
DialogModule        . DialogModules (see description
                      above).
------------------------------------------------------------------------------------------------------------------

SpeechWorks         Includes:                                 N/A             1                             N/A
SDK                 . Vocabulary Editor (allows
                      developers to generate and maintain
                      large vocabulary lists)
                    . Grammar Specification and Tuning
                      Tools (allows developers to build
                      custom applications and tune their
                      performance)
------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                                                                      TOTAL LICENSE FEES: $[     ]
</TABLE>

The term "Recognition Port" shall mean the number of telephone channels enabled
with the software included in SpeechWorks DialogModule Bundle B that is capable
of either recognizing spoken words or performing "barge-in" for a discrete
period of time. SWI acknowledges that telephone lines or ports can be configured
with or without speech recognition dynamically, and as such, charges are based
on the maximum number of simultaneous speech recognition ports currently
configured in the total system.  The term "system seats" shall mean the number
of end-users permitted to concurrently access and use, at the same time, the
SpeechWorks Tools and Grammar Libraries.

PAYMENT SCHEDULE:

The License Fee to be paid by N2P under the License  Agreement shall be due and
payable within thirty (30) days from the date appearing on an applicable invoice
prepared and delivered by SWI to N2P following the execution of the License
Agreement between the parties. If mutually agreed upon in the License Agreement
SWI may impose a late fee of 1.5% per month on any amounts which remain unpaid
thirty (30) days after they are due.

                                                                          Page 8
<PAGE>

                                  Exhibit A-1
                        DESCRIPTION OF LICENSED SOFTWARE

SpeechWorks(R) is a solution for speech-enabling transactional applications over
the telephone. packaged as six functional components:

     1.  SpeechWorks SMARTRecognizer(TM) recognizes words or phrases from
     individual vocabularies in the call flow and provides processing of phrases
     and sentences. This engine supports a range of hardware platforms and
     scales to thousands of phone lines. Its features include:

     2.  SPEECHWORKS DIALOGMODULES(TM) are high-level building blocks
     representing frequently used caller interactions that developers can
     assemble and integrate into applications. Each DialolgModule encapsulates a
     particular task such as capturing a "yes" or "no" response or creating a
     voice menu. The DialogModules are made available in three bundles/packages.

       A.  BASE:  Includes recognition kernel, reporting tools, and the
       following DialogModules:

       AlphaNumeric String - Collects a string of connected (pauses are not
       required) numbers and letters.  Patterns or a list of valid strings can
       be specified.

       Continuous Digits - Recognizes a string of connected digits only.
       Constraints such as string length or the allowed values can be specified.

       Item List - Lets callers speak words or phrases from a list (up to 250
       words), e.g. "Please say the name of the person you are calling?" or
       "What stock would you like to buy?"

       VoiceMenu - Lets callers choose a word or phrase from a list (maximum of
       20).  Menus are similar to ItemLists, but shorter so that the prompt can
       read each item to the caller.

       YesNo - Performs the essential function of identifying affirmative and
       negative responses from callers.

       B.  EXTENDED:  Includes Base DialogModules, recognition kernel, reporting
       tools, and the following DialogModules:

       CreditCardNumber - Collects a credit card number.  Can understand the
       major credit cards and many private label cards from retailers

       CCExpDate - Collects the expiration date for a credit card, usually month
       and year.  It recognizes the last day of a given month as well.

       Currency - Lets callers speak a monetary value in a natural way, e.g.,
       "One hundred twenty-five dollars and thirty two cents.  Non US dollars
       can be customized.

       Date - Collects dates in several formats, e.g., June Fourth or 6/4/70,
       nicknames can be mapped, e.g., Christmas or today, allowing callers to
       speak a date in a natural way

       ItemList - Up to 2,500 words

       NaturalNumbers - Collects whole numerical amounts; callers can say "fifty
       four hundred".  Vocabulary for units can also be added, as in "a thousand
       boxes".

       SocialSecurityNumber - Collects a 9-digit US Social Security number.
       Illegal numbers, such as those beginning with three zeroes, are screened
       out
       Spelling - Recognizes individual letters so that callers may choose to
       spell out a request.

                                                                          Page 9
<PAGE>

       TimeOfDay - Collects a naturally spoken time of day.  Callers can use 12-
       hour or 24-hour times, as well as prefix words such as "about" and
       "around"

       TelephoneNumber - Collects a phone number in the "North American
       Numbering Plan" consisting of ten, seven or three digits.  It allows
       common phrases such as "area code" and "one eight hundred".

       ZipCode - Recognizes a five and/or nine digit United States ZIP code

       C.  PROFESSIONAL NL (NATURAL LANGUAGE): Includes Extended DialogModules,
       recognition kernel, reporting tools, and the following DialogModules:
       ItemList - Greater than 2,500 words or phrases

       CustomContext  - Provides the ability to run the results of custom
       modules created with the Software Development Kit.
       The Professional NL will typically require some level of SpeechWorks
       custom development services or development support.

       Name - Available with Release 6.0 making it easier to collect a person's
       first, last or first and last names where the names are completely
       unknown.  Speech Attendant apps should continue using the ItemList
       DialogModules

     3. SPEECHWORKS REPORTING AND ANALYSIS TOOL is bundled with each of the
     DialogModule packages. The tool generates text diagnostic reports about
     applications based on call logging data. The reports included are:

       Call-Start - displays a percentage breakdown by one hour time period of
       when calls are initiated helping to identify peaks in system usage.

       Call-Length  - displays a percentage breakdown of calls by duration
       tracking the efficiency of user interface improvements that result in the
       reduction of call length.

       Module Transaction Results - summarizes execution results for each
       DialogModule presenting an overall success rate.  Success rates lower
       than 90% indicate problem areas.

       Module Callflow Results - summarizes results of each attempt to collect
       the primary DialogModule data from the caller.  High values for denied
       confirmation and rejection indicate that recognition is not performing
       well.

       Context Results  - summarizes the result of each recognition event.  This
       report illustrates a complete picture of the caller experience at the
       transaction level.

       Module Vocabulary Results - summarizes results classified by the answer
       returned by the recognizer via a DialogModule.  This report can be used
       to give an indication of a) how effective the system recognized a
       caller's utterance and b) how easily callers were able to clarify/confirm
       what was said.

       Context Stats - summarizes various additional statistics for each
       recognition context.  This report allows quick identification of problem
       contexts indicating that improvements are required

     4. SPEECHWORKS SOFTWARE DEVELOPMENT KIT (SDK) includes the following suite
     of editors and utilities for configuring DialogModules, providing service
     management functions, and supporting ongoing tuning and maintenance:
     Vocabulary Editor (VED), Grammar Development Tools and Application Tuning
     Tools. Included with the SDK are Four (4) Professional NL Run Time Port
     licenses, for development purposes only.

     5.  SPEECHWORKS VOCABULARY LIBRARIES supply pre-packaged and continuously
     maintained language contexts for spoken words/phrases. The User Interface
     for the application using these libraries is not included. The following
     libraries are currently available: (i) Stock Names & Symbols Vocabulary and
     (ii) Mutual Fund Names & Symbols Vocabulary.

                                                                         Page 10
<PAGE>

                                   EXHIBIT B


                              INFRASTRUCTURE COSTS

GENERAL

     N2P and SWI will share net revenue generated by or through the facilities
     services.  For the License Agreement, revenue will only comprise that
     generated from joint offerings brought to market by SWI and N2P in a joint
     endeavour.


GROSS REVENUE

     Gross Revenue is defined as revenue received by N2P in providing services
     that are based on SWI's products.  This definition excludes revenue
     generated from other features that might be offered by N2P that are
     separate from SWI's product, and do not involve access to any of SWI's
     services. Notwithstanding anything contained in this Exhibit or the Letter
     to which it is attached, N2P agrees that all hardware and software costs
     associated with the platform and all other fixed costs and expenses shall
     not be deemed to be Infrastructure Costs hereunder.


IDENTIFICATION OF EXPENSES

     For the purpose of this revenue share calculation, only expenses associated
     with revenue generation will be considered.  These expenses will include:


     Network Traffic Charges

            This expense category includes the per-call charges associated with
            (a) originating, (b) carrying, and (c) terminating the telephone
            call.  These costs are incurred by N2P and can include such items as
            the following: Payphone surcharges, toll-free costs charged to N2P,
            cost to carry the IP traffic, cost to terminate the telephone call,
            etc.


     Recurring Provisioning and Leased-Line Costs

            This expense category includes charges associated with providing the
            subscriber a telephone access method and leasing telephone or data
            access lines used to link facilities.  Provisioning charges include
            the per-number fees paid by N2P to provide such services as Call
            Forward on Busy / No-Answer, Toll-free numbers, and Local Numbers.
            These provisioning costs typically recur monthly and are based on
            DID quantity, but they may also include one-time installation
            charges for DIDs.  Leased line costs include the costs of leasing
            lines (such as T1 lines) that might be used to link site facilities.


     Fraud and Charge-backs

            Net2Phone will recapture any fraudulent generated refunds or bad
            debts. Net2Phone will use reasonable care and practices to minimize
            such occurrences.


     Taxes

            To the extent Taxes are not charged to the customer, Net2Phone will
            pay such charges directly.


NET REVENUE AVAILABLE FOR SHARE BY NET2PHONE AND SWI

     Net Revenue is defined as gross revenue less expenses, as defined above.

                                                                         Page 11
<PAGE>

                                   EXHIBIT C
                        Current Time and Materials Fees



<TABLE>
<CAPTION>
                                  PER EIGHT-HOUR     MINIMUM NUMBER OF
            SERVICE                  DAY RATE              DAYS

------------------------------------------------------------------------
<S>                               <C>              <C>
 Project Management                   $2,500              5 days
------------------------------------------------------------------------
 Application Consulting               $2,000              5 days
------------------------------------------------------------------------
 Speech Scientist                     $2,000              5 days
------------------------------------------------------------------------
 Speech User Interface Design         $1,500              5 days
------------------------------------------------------------------------
 Application Development              $1,500              5 days
------------------------------------------------------------------------
 Systems Integration                  $1,500              5 days
------------------------------------------------------------------------
 Operations Support                   $1,000             20 days
------------------------------------------------------------------------
 Installation Services                $1,000              5 days
------------------------------------------------------------------------
</TABLE>


                                                                         Page 12