Document:

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                                                                     Exhibit 4.3

                      ACTION BY UNANIMOUS WRITTEN CONSENT
                         OF THE BOARD OF DIRECTORS OF
                         ONE VOICE TECHNOLOGIES, INC.

     The undersigned directors, representing all of the duly elected and acting
directors of the Board (the "Board") of One Voice Technologies, Inc., a Nevada
corporation (the "Corporation"), acting in accordance with the Bylaws of the
Corporation (the "Bylaws") and the Nevada General Corporation Law, hereby
consent to the adoption of the resolutions set forth below, without a meeting,
effective as of July 11, 2000:

[EXCERPTED]

Amendment of Bylaws
-------------------

     WHEREAS, Article II of the Bylaws states in Section 1 that the annual
     meeting of the shareholders ("Annual Meeting") shall be held on the third
     Friday of August of each year and states in Section 5 that the record date
     for any meeting must be fixed not less than ten nor more than fifty days
     prior to that meeting; and

     WHEREAS, Nevada law permits the Board to set the date of the Annual Meeting
     at their discretion and to fix the record date not less than ten nor more
     than sixty days prior to the meeting; and

     WHEREAS, the Board believe it to be in the best interests of the
     Corporation to amend Section 1 of Article II of the Bylaws to permit the
     Board to set the Annual Meeting at their discretion and to amend Section 5
     of Article II to permit the record date for any meeting to be fixed not
     less than ten nor more than sixty days prior to that meeting;

          NOW, THEREFORE, BE IT RESOLVED, that Section 1 of Article II of the
          Bylaws of the Corporation is amended to read as follows:

          "The annual meeting of the shareholders of the Corporation shall be
          held at such place within or without the State of Nevada as shall be
          set forth in compliance with these Bylaws.  The Board of Directors
          shall have the authority to set the date and time for the annual
          meeting of the shareholders.  This meeting shall be for the election
          of Directors and for the transaction of such other busines as may
          properly come before it."
<PAGE>

          RESOLVED, FURTHER, that the first sentence of Section 5 of Article II
          of the Bylaws of the Corporation is amended to read as follows:

          "The Board of Directors may fix a date not less than ten nor more than
          sixty days prior to any meeting as the record date for the purpose of
          determining shareholders entitled to notice of and to vote at such
          meetings of the shareholders."

                                 * * *

                 [Remainder of page intentionally left blank.]
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       This Consent may be signed in counterparts and shall be effective as of
the date first set forth above.

                                  /s/ Dean Weber
                                  ----------------------------------------------
                                  Dean C. Weber

                                  /s/ George Kaelin
                                  ----------------------------------------------
                                  George Kaelin

                                  /s/ Rahoul Sharan
                                  ----------------------------------------------
                                  Rahoul Sharan

                                  /s/ Bradley J. Ammon
                                  ----------------------------------------------
                                  Bradley J. Ammon

                   [Signature page to Board Consent Action.]<PAGE>

                                                                     Exhibit 4.4

                             AMENDED AND RESTATED
                         ONE VOICE TECHNOLOGIES, INC.
                            1999 STOCK OPTION PLAN

     1.   PURPOSE. This Stock Option Plan (the "Plan") is intended to serve as
          -------
an incentive to, and to encourage stock ownership by, certain eligible
participants rendering services to One Voice Technologies, Inc., a Nevada
corporation (the "Corporation"), and certain affiliates as set forth below, so
that they may acquire or increase their proprietary interest in the Corporation
and to encourage them to remain in the service of the Corporation. The Plan is a
restatement in the entirety of the Plan.

     2.   ADMINISTRATION.
          --------------

          2.1  Committee. The Plan shall be administered by the Board of
               ---------
Directors of the Corporation (the "Board of Directors") or a committee of two or
more members appointed by the Board of Directors (the "Committee") who are Non-
Employee Directors as defined in Rule 16b-3 promulgated under Section 16 of the
Securities Exchange Act of 1934 and outside directors as defined in Treasury
Regulation (S) 1.162-27(e)(3). The Committee shall select one of its members as
Chairman and shall appoint a Secretary, who need not be a member of the
Committee. The Committee shall hold meetings at such times and places as it may
determine and minutes of such meetings shall be recorded. Acts by a majority of
the Committee in a meeting at which a quorum is present and acts approved in
writing by a majority of the members of the Committee shall be valid acts of the
Committee.

          2.2  Term. If the Board of Directors selects a Committee, the members
               ----
of the Committee shall serve on the Committee for the period of time determined
by the Board of Directors and shall be subject to removal by the Board of
Directors at any time. The Board of Directors may terminate the function of the
Committee at any time and resume all powers and authority previously delegated
to the Committee.

          2.3  Authority. The Committee shall have sole discretion and authority
               ---------
to grant options under the Plan to eligible participants rendering services to
the Corporation or any "parent" or "subsidiary" of the Corporation, as defined
in Section 424 of the Internal Revenue Code of 1986, as amended (the "Code")
("Parent or Subsidiary"), at such times, under such terms and in such amounts as
it may decide. For purposes of this Plan and any Stock Option Agreement (as
defined below), the term "Corporation" shall include any Parent or Subsidiary,
if applicable. Subject to the express provisions of the Plan, the Committee
shall have complete discretion and authority to interpret the Plan, to
prescribe, amend and rescind the rules and regulations relating to the Plan, to
determine the details and provisions of any Stock Option Agreement, to
accelerate any options granted under the Plan and to make all other
determinations necessary or advisable for the administration of the Plan.
<PAGE>

          2.4  Type of Option.  The Committee shall have full authority and
               --------------
discretion to determine, and shall specify, whether the eligible individual will
be granted options intended to qualify as incentive options under Section 422 of
the Code ("Incentive Options") or options which are not intended to qualify
under Section 422 of the Code ("Non-Qualified Options"); provided, however, that
Incentive Options shall only be granted to employees of the Corporation, or a
Parent or Subsidiary thereof, and shall be subject to the special limitations
set forth herein attributable to Incentive Options.

          2.5  Interpretation.  The interpretation and construction by the
               --------------
Committee of any provisions of the Plan or of any option granted under the Plan
shall be final and binding on all parties having an interest in this Plan or any
option granted hereunder. No member of the Committee shall be liable for any
action or determination made in good faith with respect to the Plan or any
option granted under the Plan.

     3.   ELIGIBILITY.
          -----------

          3.1  General.  All directors, officers, employees of and certain
               -------
persons rendering services to the Corporation, or any Parent or Subsidiary,
relative to the Corporation's, or any Parent's or Subsidiaries', management,
operation or development shall be eligible to receive options under the Plan.
The selection of recipients of options shall be within the sole and absolute
discretion of the Committee. No person shall be granted an option under this
Plan unless such person has executed the grant representation letter set forth
on Exhibit "A," as such Exhibit may be amended by the Committee from time to
time and no person shall be granted an Incentive Option under this Plan unless
such person is an employee of the Corporation, or a Parent or Subsidiary, on the
date of grant. No employee shall be granted more than 100,000 options in any one
year period.

          3.2  Termination of Eligibility.
               --------------------------

               3.2.1  If an optionee ceases to be employed by the Corporation,
or its Parent or Subsidiary, is no longer an officer or member of the Board of
Directors of the Corporation or no longer performs services for the Corporation,
or its Parent or Subsidiary for any reason (other than for "cause," as
hereinafter defined, or such optionee's death), any option granted hereunder to
such optionee shall expire three months after the date of the occurrence giving
rise to such termination of eligibility (or 1 year in the event an optionee is
"disabled," as defined in Section 22(e)(3) of the Code) or upon the date it
expires by its terms, whichever is earlier. Any option that has not vested in
the optionee as of the date of such termination shall immediately expire and
shall be null and void. The Committee shall, in its sole and absolute
discretion, decide, utilizing the provisions set forth in Treasury Regulations
(S) 1.421-7(h), whether an authorized leave of absence or absence for military
or governmental service, or absence for any other reason, shall constitute
termination of eligibility for purposes of this Section.

               3.2.2  If an optionee ceases to be employed by the Corporation,
or its Parent or Subsidiary, is no longer an officer or member of the Board of
Directors of the Corporation, or no

                                       2
<PAGE>

longer performs services for the Corporation, or its Parent or Subsidiary and
such termination is as a result of "cause," as hereinafter defined, then all
options granted hereunder to such optionee shall expire on the date of the
occurrence giving rise to such termination of eligibility or upon the date it
expires by its terms, whichever is earlier, and such optionee shall have no
rights with respect to any unexercised options. For purposes of this Plan,
"cause" shall mean an optionee's personal dishonesty, misconduct, breach of
fiduciary duty, incompetence, intentional failure to perform stated obligations,
willful violation of any law, rule, regulation or final cease and desist order,
or any material breach of any provision of this Plan, any Stock Option Agreement
or any employment agreement. The Board of Directors shall have complete
discretion and authority to determine whether the termination of the option is
for cause.

          3.3  Death of Optionee and Transfer of Option.  In the event an
               ----------------------------------------
optionee shall die, an option may be exercised (subject to the condition that no
option shall be exercisable after its expiration and only to the extent that the
optionee's right to exercise such option had accrued at the time of the
optionee's death) at any time within six months after the optionee's death by
the executors or administrators of the optionee or by any person or persons who
shall have acquired the option directly from the optionee by bequest or
inheritance but not later than the expiration of the option by its terms. Any
option that has not vested in the optionee as of the date of death or
termination of employment, whichever is earlier, shall immediately expire and
shall be null and void. No option shall be transferable by the optionee other
than by will or the laws of descent and distribution.

          3.4  Limitation on Incentive Options.  No person shall be granted any
               -------------------------------
Incentive Option to the extent that the aggregate fair market value of the Stock
(as defined below) to which such options are exercisable for the first time by
the optionee during any calendar year (under all plans of the Corporation as
determined under Section 422(d) of the Code) exceeds $100,000.

     4.   IDENTIFICATION OF STOCK.  The Stock, as defined herein, subject to the
          -----------------------
options shall be shares of the Corporation's authorized but unissued or acquired
or reacquired common stock (the "Stock"). The aggregate number of shares subject
to outstanding options shall not exceed 1,000,000 shares of Stock (subject to
adjustment as provided in Section 6). If any option granted hereunder shall
expire or terminate for any reason without having been exercised in full, the
unpurchased shares subject thereto shall again be available for purposes of this
Plan. Notwithstanding the above, at no time shall the total number of shares of
Stock issuable upon exercise of all outstanding options and the total number of
shares of Stock provided for under any stock bonus or similar plan of the
Corporation exceed 30% as calculated in accordance with the conditions and
exclusions of (S)260.140.45 of Title 10, California Code of Regulations, based
on the shares of the issuer which are outstanding at the time the calculation is
made.

     5.   TERMS AND CONDITIONS OF OPTIONS.  Any option granted pursuant to the
           -------------------------------
Plan shall be evidenced by an agreement ("Stock Option Agreement") in such form
as the Committee shall from time to time determine, which agreement shall comply
with and be subject to the following terms and conditions:

                                       3
<PAGE>

          5.1  Number of Shares. Each option shall startthe number of Shaness of
               -----------------
Stock to which it pertains.

          5.2  Option Exercise Price.  Each option shall state the option
               ---------------------
exercise price, which shall be determined by the Committee; provided, however,
that (i) the exercise price of any Option shall not be less than the fair market
value of the Stock, as determined by the Committee, on the date of grant of such
option, (ii) the exercise price of any option granted to an employee who owns
more than 10% of the total combined voting power of all classes of the
Corporation's stock, as determined for purposes of Section 422 of the Code,
shall not be less than 110% of the fair market value of the Stock, as determined
by the Committee, on the date of grant of such option, and (iii) the exercise
price of any Non-Qualified Option shall not be less than 85% of the fair market
value of the Stock, as determined by the Committee, on the date of grant of such
option.

          5.3  Term of Option.  The term of an option granted hereunder shall be
               --------------
determined by the Committee at the time of grant, but shall not exceed ten years
from the date of the grant. The term of any Incentive Option granted to an
employee who owns more than 10% of the total combined voting power of all
classes of the Corporation's stock, as determined for purposes of Section 422 of
the Code, shall in no event exceed five years from the date of grant. All
options shall be subject to early termination as set forth in this Plan. In no
event shall any option be exercisable after the expiration of its term.

          5.4  Method of Exercise.  An option shall be exercised by written
               ------------------
notice to the Corporation by the optionee (or successor in the event of death)
and execution by the optionee of an exercise representation letter in the form
set forth on Exhibit "B," as such Exhibit may be amended by the Committee from
time to time. Such written notice shall state the number of shares with respect
to which the option is being exercised and designate a time, during normal
business hours of the Corporation, for the delivery thereof ("Exercise Date"),
which time shall be at least 30 days after the giving of such notice unless an
earlier date shall have been mutually agreed upon. At the time specified in the
written notice, the Corporation shall deliver to the optionee at the principal
office of the Corporation, or such other appropriate place as may be determined
by the Committee, a certificate or certificates for such shares. Notwithstanding
the foregoing, the Corporation may postpone delivery of any certificate or
certificates after notice of exercise for such reasonable period as may be
required to comply with any applicable listing requirements of any securities
exchange. In the event an option shall be exercisable by any person other than
the optionee, the required notice under this Section shall be accompanied by
appropriate proof of the right of such person to exercise the option.

          5.5  Medium and Time of Payment.  The option exercise price shall be
               --------------------------
payable in full on or before the option Exercise Date in any one of the
following alternative forms:

               5.5.1  Full payment in cash or certified bank or cashier's check;

                                       4
<PAGE>

               5.5.2   A Prommissory Note (as defined below), in the discretion
 of the Committee;

               5.5.3   Full payment in shares of Stock or other securities of
the Corporation having a fair market value on the Exercise Date in the amount
equal to the option exercise price;

               5.5.4   Through a special sale and remittance procedure pursuant
to which the optionee shall concurrently provide irrevocable written instruction
to (a) a Corporation-designated brokerage firm to effect the immediate sale of
the purchased shares and remit to the Corporation, out of the sale proceeds
available on the settlement date, sufficient funds to cover the aggregate
exercise price payable for the purchased shares plus all applicable Federal,
state and local income and employment taxes required to be withheld by the
Corporation by reason of such exercise and (b) the Corporation to deliver the
certificates for the purchased shares directly to such brokerage firm in order
to complete the sale.

               5.5.5   A combination of the consideration set forth in Sections
5.5.1, 5.5.2, 5.5.3 and 5.5.4 equal to the option exercise price; or

               5.5.6   Any other method of payment complying with the provisions
of Section 422 of the Code with respect to Incentive Options, provided the terms
of payment are established by the Committee at the time of grant, and any other
method of payment established by the Committee with respect to Non-Qualified
Options.

   5.6  Fair Market Value.  The fair market value of a share of Stock on any
        -----------------
relevant date shall be determined in accordance with the following provisions:

        5.6.1  If the Stock at the time is neither listed nor admitted to
trading on any stock exchange nor traded in the over-the-counter market, then
the fair market value shall be determined by the Committee after taking into
account such factors as the Committee shall deem appropriate.

               5.6.2   If the Stock is not at the time listed or admitted to
trading on any stock exchange but is traded in the over-the-counter market, the
fair market value shall be the mean between the highest bid and lowest asked
prices (or, if such information is available, the closing selling price) of one
share of Stock on the date in question in the over-the-counter market, as such
prices are reported by the National Association of Securities Dealers through
its NASDAQ system or any successor system. If there are no reported bid and
asked prices (or closing selling price) for the Stock on the date in question,
then the mean between the highest bid price and lowest asked price (or the
closing selling price) on the last preceding date for which such quotations
exist shall be determinative of fair market value.

               5.6.3   If the Stock is at the time listed or admitted to trading
on any stock exchange, then the fair market value shall be the closing selling
price of one share of Stock on the date in question on the stock exchange
determined by the Committee to be the primary market for the Stock,

                                       5
<PAGE>

as such price is officially quoted in the composite tape of transactions on such
exchange. If there is no closing selling price for the Stock on such exchange on
the date in question, then the fair market value shall be the closing selling
price on the exchange on the last preceding date for which such quotation
exists.

          5.7  Promissory Note.  Subject to the requirements of applicable state
               ---------------
or Federal law or margin requirements, payment of all or part of the purchase
price of the Stock may be made by delivery of a full recourse promissory note
("Promissory Note"). The Promissory Note shall be executed by the optionee, made
payable to the Corporation and bear interest at such rate as the Committee shall
determine, but in no case less than the minimum rate which will not cause under
the Code (i) interest to be imputed, (ii) original issue discount to exist, or
(iii) any other similar results to occur. Unless otherwise determined by the
Committee, interest on the Note shall be payable in quarterly installments on
March 31, June 30, September 30 and December 31 of each year. A Promissory Note
shall contain such other terms and conditions as may be determined by the
Committee; provided, however, that the full principal amount of the Promissory
Note and all unpaid interest accrued thereon shall be due not later than five
years from the date of exercise. The Corporation may obtain from the optionee a
security interest in all shares of Stock issued to the optionee under the Plan
for the purpose of securing payment under the Promissory Note and shall retain
possession of the stock certificates representing such shares in order to
perfect its security interest.

          5.8  Rights as a Shareholder.  An optionee or successor shall have no
               -----------------------
rights as a shareholder with respect to any Stock underlying any option until
the date of the issuance to such optionee of a certificate for such Stock. No
adjustment shall be made for dividends (ordinary or extraordinary, whether in
cash, securities or other property) or distributions or other rights for which
the record date is prior to the date such Stock certificate is issued, except as
provided in Section 6.

          5.9  Modification, Extension and Renewal of Options.  Subject to the
               ----------------------------------------------
terms and conditions of the Plan, the Committee may modify, extend or renew
outstanding options granted under the Plan, or accept the surrender of
outstanding options (to the extent not exercised) and authorize the granting of
new options in substitution therefor.

          5.10 Vesting and Restrictions.  The Committee shall have complete
               ------------------------
authority and discretion to set the terms, conditions, restrictions, vesting
schedules and other provisions of any option in the applicable Stock Option
Agreement and shall have complete authority to require conditions and
restrictions on any Stock issued pursuant to this Plan; provided, however, that
except with respect to options granted to officers or directors of the
Corporation, options granted pursuant to this Plan shall be exercisable or
"vest" at the rate of at least 20% per year over the 5-year period beginning on
the date the option is granted. Options granted to officers and directors shall
become exercisable or "vest," subject to reasonable conditions, at any time
during any period established by the Corporation.

                                       6
<PAGE>

          5.11  Other Provisions.  The Stock Option Agreements shall contain
                ----------------
such other provisions, including without limitation, restrictions or conditions
upon the exercise of options, as the Committee shall deem advisable.

     6.   ADJUSTMENTS UPON CHANGES IN CAPITALIZATION.
          ------------------------------------------

          6.1  Subdivision or Consolidation.  Subject to any required action by
               ----------------------------
shareholders of the Corporation, the number of shares of Stock covered by each
outstanding option, and the exercise price thereof, shall be proportionately
adjusted for any increase or decrease in the number of issued shares of Stock of
the Corporation resulting from a subdivision or consolidation of shares,
including, but not limited to, a stock split, reverse stock split,
recapitalization, continuation or reclassification, or the payment of a stock
dividend (but only on the Stock) or any other increase or decrease in the number
of such shares effected without receipt of consideration by the Corporation. Any
fraction of a share subject to option that would otherwise result from an
adjustment pursuant to this Section shall be rounded downward to the next full
number of shares without other compensation or consideration to the holder of
such option.

          6.2  Capital Transactions.  Upon a sale or exchange of all or
               --------------------
substantially all of the assets of the Corporation, a merger or consolidation in
which the Corporation is not the surviving corporation, a merger, reorganization
or consolidation in which the Corporation is the surviving corporation and
shareholders of the Corporation exchange their stock for securities or property,
a liquidation of the Corporation or similar transaction as determined by the
Committee ("Capital Transaction"), this Plan and each option issued under this
Plan, whether vested or unvested, shall terminate, unless such options are
assumed by a successor corporation in a merger or consolidation, immediately
prior to such Capital Transaction; provided, however, that unless the
outstanding options are assumed by a successor corporation in a merger or
consolidation, subject to terms approved by the Committee, all optionees will
have the right, during the 15 days prior to such Capital Transaction, to
exercise all vested options. The Corporation shall, subject to any applicable
nondisclosure agreements binding the Corporation, attempt to provide optionees
at least 15 days notice of the option termination date under this Section 6.2.
The Committee may (but shall not be obligated to) (i) accelerate the vesting of
any option or (ii) apply the foregoing provisions, including but not limited to
termination of this Plan and any options granted pursuant to the Plan, in the
event there is a sale of 51% or more of the stock of the Corporation in any two-
year period or a transaction similar to a Capital Transaction.

          6.3  Adjustments.  To the extent that the foregoing adjustments relate
               -----------
to stock or securities of the Corporation, such adjustments shall be made by the
Committee, whose determination in that respect shall be final, binding and
conclusive.

          6.4  Ability to Adjust.  The grant of an option pursuant to the Plan
               -----------------
shall not affect in any way the right or power of the Corporation to make
adjustments, reclassifications, reorganizations or changes of its capital or
business structure or to merge, consolidate, dissolve, liquidate, sell or
transfer all or any part of its business or assets.

                                       7
<PAGE>

          6.5  Notice of Adjustment.  Whenever the Corporation shall take any
               --------------------
action resulting in any adjustment provided for in this Section, the Corporation
shall forthwith deliver notice of such action to each optionee, which notice
shall set forth the number of shares subject to the option and the exercise
price thereof resulting from such adjustment.

          6.6  Limitation on Adjustments.  Any adjustment, assumption or
               -------------------------
substitution of an Incentive Option shall comply with Section 425 of the Code,
if applicable.

     7.  NONASSIGNABILITY.  Options granted under this Plan may not be sold,
         ----------------
pledged, assigned or transferred in any manner other than by will or by the laws
of descent and distribution, and may be exercised during the lifetime of an
optionee only by such optionee. Any transfer in violation of this Section shall
void such option and any Stock Option Agreement entered into by the optionee and
the Corporation regarding such transferred option shall be void and have no
further force or effect. No option shall be pledged or hypothecated in any way,
nor shall any option be subject to execution, attachment or similar process.

     8.  NO RIGHT OF EMPLOYMENT.  Neither the grant nor exercise of any option
         ----------------------
nor anything in this Plan shall impose upon the Corporation or any other
corporation any obligation to employ or continue to employ any optionee. The
right of the Corporation and any other corporation to terminate any employee
shall not be diminished or affected because an option has been granted to such
employee.

     9.  TERM OF PLAN.  This Plan is effective on the date the Plan is adopted
         ------------
by the Board of Directors and options may be granted pursuant to the Plan from
time to time within a period of ten (10) years from such date, or the date of
any required shareholder approval required under the Plan, if earlier.
Termination of the Plan shall not affect any option theretofore granted.

     10.  AMENDMENT OF THE PLAN.  The Board of Directors of the Corporation may,
          ---------------------
subject to any required shareholder approval, suspend, discontinue or terminate
the Plan, or revise or amend it in any respect whatsoever with respect to any
shares of Stock at that time not subject to options.

     11.  APPLICATION OF FUNDS.  The proceeds received by the Corporation from
          --------------------
the sale of Stock pursuant to options may be used for general corporate
purposes.

     12.  RESERVATION OF SHARES.  The Corporation, during the term of this Plan,
          ---------------------
shall at all times reserve and keep available such number of shares of Stock as
shall be sufficient to satisfy the requirements of the Plan.

     13.  NO OBLIGATION TO EXERCISE OPTION.  The granting of an option shall not
          --------------------------------
impose any obligation upon the optionee to exercise such option.

                                       8
<PAGE>

     14.  APPROVAL OF BOARD OF DIRECTORS AND SHAREHOLDERS.  The Plan shall not
          -----------------------------------------------
take effect until approved by the Board of Directors of the Corporation. This
Plan shall be approved by a vote of the shareholders within 12 months from the
date of approval by the Board of Directors. In the event such shareholder vote
is not obtained, all options granted hereunder, whether vested or unvested,
shall be null and void. Further, any stock acquired pursuant to the exercise of
any options under this Agreement may not count for purposes of determining
whether shareholder approval has been obtained.

     15.  WITHHOLDING TAXES.  Notwithstanding anything else to the contrary in
          -----------------
this Plan or any Stock Option Agreement, the exercise of any option shall be
conditioned upon payment by such optionee in cash, or other provisions
satisfactory to the Committee, of all local, state, federal or other withholding
taxes applicable, in the Committee's judgment, to the exercise or to later
disposition of shares acquired upon exercise of an option.

     16.  PARACHUTE PAYMENTS.  Any outstanding option under the Plan may not be
          ------------------
accelerated to the extent any such acceleration of such option would, when added
to the present value of other payments in the nature of compensation which
becomes due and payable to the optionee would result in the payment to such
optionee of an excess parachute payment under Section 280G of the Code. The
existence of any such excess parachute payment shall be determined in the sole
and absolute discretion of the Committee.

     17.  SECURITIES LAWS COMPLIANCE.  Notwithstanding anything contained
          --------------------------
herein, the Corporation shall not be obligated to grant any option under this
Plan or to sell, issue or effect any transfer of any Stock unless such grant,
sale, issuance or transfer is at such time effectively (i) registered or exempt
from registration under the Securities Act of 1933, as amended (the "Act"), and
(ii) qualified or exempt from qualification under the California Corporate
Securities Law of 1968 and any other applicable state securities laws. As a
condition to exercise of any option, each optionee shall make such
representations as may be deemed appropriate by counsel to the Corporation for
the Corporation to use any available exemption from registration under the Act
or registration or qualification under any applicable state securities law.

     18.  RESTRICTIVE LEGENDS.  The certificates representing the Stock issued
          -------------------
upon exercise of options granted pursuant to this Plan will bear any legends
required by applicable securities laws as determined by the Committee.

                                       9
<PAGE>

     19.  NOTICES.  Any notice to be given under the terms of the Plan shall be
          -------
addressed to the Corporation in care of its Secretary at its principal office,
and any notice to be given to an optionee shall be addressed to such optionee at
the address maintained by the Corporation for such person or at such other
address as the optionee may specify in writing to the Corporation.

     20.  INFORMATION TO PARTICIPANTS.  The Corporation shall make available to
          ---------------------------
all holders of options the information required pursuant to (S) 260.140.46 of
the California Code of Regulations.

                 [Remainder of Page Intentionally Left Blank]

                                       10
<PAGE>

     As originally adopted by the Board of Directors as of July 14, 1999,
previously amended on July 11, 2000, and amended on September 22, 2000.

                              ONE VOICE TECHNOLOGIES, INC.,
                                    a Nevada corporation

                              By: /s/ Dean Weber
                                 ----------------------------------------
                                 Dean Weber, President

        [Signature Page to Amended and Restated 1999 Stock Option Plan]
<PAGE>

                                 EXHIBIT A

                              ____________, 20__

One Voice Technologies, Inc.
6333 Greenwich Drive, Suite 240
San Diego, CA 92122

     Re:  1999 Amended and Restated Stock Option Plan
          -------------------------------------------

To Whom It May Concern:

     This letter is delivered to One Voice Technologies, Inc., a Nevada
corporation (the "Corporation"), in connection with the grant to
_______________________________________ (the "Optionee") of an option (the
"Option") to purchase__________ shares of common stock of the Corporation (the
"Stock") pursuant to the Amended and Restated One Voice Technologies, Inc. 1999
Stock Option Plan dated July 14, 1999, and amended on July 11, 2000 and
September 22, 2000 (the "Plan"). The Optionee understands that the Corporation's
receipt of this letter executed by the Optionee is a condition to the
Corporation's willingness to grant the Option to the Optionee.

     The Optionee acknowledges that the grant of the Option by the Corporation
is in lieu of any and all other promises of the Corporation to the Optionee,
whether written or oral, express or implied, regarding the grant of options or
other rights to acquire Stock. Accordingly, in anticipation of the grant of the
Option, the Optionee hereby relinquishes all rights to such other rights, if
any, to acquire stock of the Corporation.

     In addition, the Optionee makes the following representations and
warranties with the understanding that the Corporation will rely upon them.

     1.  The Optionee acknowledges receipt of a copy of the Plan and Agreement.
The Optionee has carefully reviewed the Plan and Agreement.

     2.  The Optionee acknowledges receipt of a prospectus regarding the Plan
which includes the information required by Section (a)(1) of Rule 428 under the
Securities Act of 1933.

     3.  The Optionee understands and acknowledges that the Option and the Stock
are subject to the terms and conditions of the Plan.

                              Exhibit A - Page 1
                              ------------------
<PAGE>

     4.  The Optionee understands and agrees that, at the time of exercise of
any part of the Option for Stock, the Optionee may be required to provide the
Corporation with additional representations, warranties and/or covenants similar
to those contained in this letter.

     5.  The Optionee is a resident of the State of __________.

     6.  The Optionee will notify the Corporation immediately of any change in
the above information which occurs before the Option is exercised in full by the
Optionee.

     The foregoing representations and warranties are given on ______________,
20__ at ____________________.

                                    OPTIONEE:

                                    _________________________________________

                              Exhibit A - Page 2
                              ------------------
<PAGE>

                                   EXHIBIT B

                              ____________, _____

One Voice Technologies, Inc.
6333 Greenwich Drive, Suite 240
San Diego, CA 92122

     Re:  1999 Amended and Restated Stock Option Plan
          -------------------------------------------

To Whom It May Concern:

     I (the "Optionee") hereby exercise my right to purchase _______________
shares of common stock (the "Stock") of One Voice Technologies, Inc., a Nevada
corporation (the "Corporation"), pursuant to the Amended and Restated One Voice
Technologies, Inc. 1999 Stock Option Plan dated July 14, 1999, and amended on
July 11, 2000 and September 22, 2000 (the "Plan"), and the Stock Option
Agreement (the "Agreement") dated ______________, 20__.  As provided in such
Plan, I deliver herewith payment as set forth in the Plan in the amount of the
aggregate option exercise price.  Please deliver to me at my address as set
forth above stock certificates representing the subject shares registered in my
name (and (spouse), as  (style of vesting)).
          --------     -------------------

     The Optionee hereby represents as follows:

     1.  The Optionee acknowledges receipt of a copy of the Plan and Agreement.
The Optionee has carefully reviewed the Plan and Agreement.

     2.  The Optionee is a resident of the State of __________.

     3.  The Optionee represents and agrees that if the Optionee is an
"affiliate" (as defined in Rule 144 under the Securities Act of 1933) of the
Corporation at the time the Optionee desires to sell any of the Stock, the
Optionee will be subject to certain restrictions under, and will comply with all
of the requirements of, applicable federal and state securities laws.

     The foregoing representations and warranties are given on
___________________________ at ______________________.

                                   OPTIONEE:

                                   _________________________________________

                              Exhibit B - Page 1
                              ------------------

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