<PAGE>

                                                                     Exhibit 4.4

                               DAVOX CORPORATION

                                1996 STOCK PLAN
                                ---------------


     1.  Purpose. The purpose of the Davox Corporation 1996 Stock Plan (the
         -------
"Plan") is to encourage key employees of Davox Corporation (the "Company") and
of any present or future parent or subsidiary of the Company (collectively,
"Related Corporations") and other individuals who render services to the Company
or a Related Corporation, by providing opportunities to participate in the
ownership of the Company and its future growth through (a) the grant of options
which qualify as "incentive stock options" ("ISOs") under Section 422(b) of the
Internal Revenue Code of 1986, as amended (the "Code"); (b) the grant of options
which do not qualify as ISOs ("Non-Qualified Options"); (c) awards of stock in
the Company ("Awards"); and (d) opportunities to make direct purchases of stock
in the Company ("Purchases"). Both ISOs and Non-Qualified Options are referred
to hereafter individually as an "Option" and collectively as "Options." Options,
Awards and authorizations to make Purchases are referred to hereafter
collectively as "Stock Rights." As used herein, the terms "parent" and
"subsidiary" mean "parent corporation" and "subsidiary corporation,"
respectively, as those terms are defined in Section 424 of the Code.


     2.   Administration of the Plan.
          ---------------------------

          A.   Board or Committee Administration.  The Plan shall be
               ---------------------------------
     administered by the Board of Directors of the Company (the "Board") or,
     subject to Paragraph 2D (relating to compliance with Section 162(m) of the
     Code), by a committee appointed by the Board (the "Committee").
     Hereinafter, all references in this Plan to the "Committee" shall mean the
     Board if no Committee has been appointed. Subject to ratification of the
     grant or authorization of each Stock Right by the Board (if so required by
     applicable state law), and subject to the terms of the Plan, the Committee
     shall have the authority to (i) determine to whom (from among the class of
     employees eligible under paragraph 3 to receive ISOs) ISOs shall be
     granted, and to whom (from among the class of individuals and entities
     eligible under paragraph 3 to receive Non-Qualified Options and Awards and
     to make Purchases) Non-Qualified Options, Awards and authorizations to make
     Purchases may be granted; (ii) determine the time or times at which Options
     or Awards shall be granted or Purchases made; (iii) determine the purchase
     price of shares subject to each Option or Purchase, which prices shall not
     be less than the minimum price specified in paragraph 6; (iv) determine
     whether each Option granted shall be an ISO or a Non-Qualified Option; (v)
     determine (subject to paragraph 7) the time or times when each Option shall
     become exercisable and the duration of the exercise period; (vi) extend the
     period during which outstanding Options may be exercised; (vii) determine
     whether restrictions such as repurchase options are to be imposed on shares
     subject to Options, Awards and Purchases and the nature of such
     restrictions, if any, and (viii) interpret the Plan and prescribe and
     rescind rules and regulations relating to it. If the Committee determines
     to issue a Non-Qualified Option, it shall take whatever actions it deems
     necessary, under Section 422 of the Code and the regulations promulgated
     thereunder, to ensure that such Option is not treated as an ISO. The
     interpretation and construction by the Committee of any provisions of the
     Plan or of any Stock Right granted under it shall be final unless otherwise
     determined by the Board. The Committee may from time to time adopt such
     rules and regulations for carrying out the Plan as it may deem advisable.
     No member of the Board or the Committee shall be liable for any action or
     determination made in good faith with respect to the Plan or any Stock
     Right granted under it.

          B.   Committee Actions.  The Committee may select one of its members
               -----------------
     as its chairman, and shall hold meetings at such time and places as it may
     determine. A majority of the Committee
<PAGE>

     shall constitute a quorum and acts of a majority of the members of the
     Committee at a meeting at which a quorum is present, or acts reduced to or
     approved in writing by all the members of the Committee (if consistent with
     applicable state law), shall be the valid acts of the Committee. From time
     to time the Board may increase the size of the Committee and appoint
     additional members thereof, remove members (with or without cause) and
     appoint new members in substitution therefor, fill vacancies however
     caused, or remove all members of the Committee and thereafter directly
     administer the Plan.

          C.   Grant of Stock Rights to Board Members.  Stock Rights may be
               --------------------------------------
     granted to members of the Board. All grants of Stock Rights to members of
     the Board shall in all respects be made in accordance with the provisions
     of this Plan applicable to other eligible persons. Members of the Board who
     either (i) are eligible to receive grants of Stock Rights pursuant to the
     Plan or (ii) have been granted Stock Rights may vote on any matters
     affecting the administration of the Plan or the grant of any Stock Rights
     pursuant to the Plan, except that no such member shall act upon the
     granting to himself or herself of Stock Rights, but any such member may be
     counted in determining the existence of a quorum at any meeting of the
     Board during which action is taken with respect to the granting to such
     member of Stock Rights.

          D.   Performance-Based Compensation.  The Board, in its discretion,
               ------------------------------
     may take such action as may be necessary to ensure that Stock Rights
     granted under the Plan qualify as "qualified performance-based
     compensation" within the meaning of Section 162(m) of the Code and
     applicable regulations promulgated thereunder ("Performance-Based
     Compensation"). Such action may include, in the Board's discretion, some or
     all of the following (i) if the Board determines that Stock Rights granted
     under the Plan generally shall constitute Performance-Based Compensation,
     the Plan shall be administered, to the extent required for such Stock
     Rights to constitute Performance-Based Compensation, by a Committee
     consisting solely of two or more "outside directors" (as defined in
     applicable regulations promulgated under Section 162(m) of the Code), (ii)
     if any Non-Qualified Options with an exercise price less than the fair
     market value per share of Common Stock are granted under the Plan and the
     Board determines that such Options should constitute Performance-Based
     Compensation, such options shall be made exercisable only upon the
     attainment of a pre-established, objective performance goal established by
     the Committee, and such grant shall be submitted for, and shall be
     contingent upon shareholder approval and (iii) Stock Rights granted under
     the Plan may be subject to such other terms and conditions as are necessary
     for compensation recognized in connection with the exercise or disposition
     of such Stock Right or the disposition of Common Stock acquired pursuant to
     such Stock Right, to constitute Performance-Based Compensation.


     3.  Eligible Employees and Others. ISOs may be granted only to employees of
         -----------------------------
the Company or any Related Corporation. Non-Qualified Options, Awards and
authorizations to make Purchases may be granted to any employee, officer or
director (whether or not also an employee) or consultant of the Company or any
Related Corporation. The Committee may take into consideration a recipient's
individual circumstances in determining whether to grant a Stock Right. The
granting of any Stock Right to any individual or entity shall neither entitle
that individual or entity to, nor disqualify such individual or entity from,
participation in any other grant of Stock Rights.

     4.  Stock.  The stock subject to Stock Rights shall be authorized but
         -----
unissued shares of Common Stock of the Company, par value $.10 per share (the
"Common Stock"), or shares of Common Stock reacquired by the Company in any
manner. The aggregate number of shares which may be issued pursuant to the Plan
is equal to the "Plan Share Limit" as defined below. If any Option granted under
the Plan shall expire or terminate for any reason without having been exercised
in full or shall cease for any reason to be exercisable in whole or in part or
shall be repurchased by the Company, the unpurchased
<PAGE>

shares of Common Stock subject to such Option shall again be available for
grants of Stock Rights under the Plan.

     For purposes of this Plan the "Plan Share Limit" shall be 900,000 shares,
such total to include the number of shares that are available for grant, award
or purchase under the Company's 1986 Stock Plan (the "Old Plan") at the time of
expiration of the Old Plan.

     No employee of the Company or any Related Corporation may be granted
Options to acquire, in the aggregate, more than 500,000 shares of Common Stock
during any fiscal year of the Company. If any Option granted under the Plan
shall expire or terminate for any reason without having been exercised in full
or shall cease for any reason to be exercisable in whole or in part or shall be
repurchased by the Company, the shares subject to such Option shall be included
in the determination of the aggregate number of shares of Common Stock deemed to
have been granted to such employee under the Plan.

     5.   Granting of Stock Rights.  Stock Rights may be granted under the Plan
          ------------------------
at any time on or after July 25, 1996 and prior to July 25, 2006. The date of
grant of a Stock Right under the Plan will be the date specified by the
Committee at the time it grants the Stock Right; provided, however, that such
date shall not be prior to the date on which the Committee acts to approve the
grant.


     6.   Minimum Option Price; ISO Limitations.
          -------------------------------------

          A.   Price for Non-Qualified Options, Awards and Purchases.  Subject
               -----------------------------------------------------
     to Paragraph 2D (relating to compliance with Section 162(m) of the Code),
     the exercise price per share specified in the agreement relating to each
     Non-Qualified Option granted, and the purchase price per share of stock
     granted in any Award or authorized as a Purchase, under the Plan may be
     less than the fair market value of the Common Stock of the Company on the
     date of grant, provided that, in no event shall such exercise price or such
     purchase price be less than the minimum legal consideration required
     therefor under the laws of any jurisdiction in which the Company or its
     successors in interest may be organized. The Committee may, in its
     discretion, subject any Stock Right granted under the Plan to any terms or
     conditions necessary for compensation recognized in connection with the
     exercise of such Stock Right or the disposition of Common Stock acquired
     pursuant to such Stock Right, to constitute qualified performance-based
     compensation under Section 162(m) of the Code and applicable regulations
     promulgated thereunder.

          B.   Price for ISOs.  The exercise price per share specified in the
               --------------
     agreement relating to each ISO granted under the Plan shall not be less
     than the fair market value per share of Common Stock on the date of such
     grant. In the case of an ISO to be granted to an employee owning stock
     possessing more than ten percent (10%) of the total combined voting power
     of all classes of stock of the Company or any Related Corporation, the
     price per share specified in the agreement relating to such ISO shall not
     be less than one hundred ten percent (110%) of the fair market value per
     share of Common Stock on the date of grant. For purposes of determining
     stock ownership under this paragraph, the rules of Section 424(d) of the
     Code shall apply. The date of grant for purposes of this subparagraph shall
     mean the date that the Company or a Related Corporation completes the
     corporate action constituting an offer of stock for sale to an individual.

          C.   $100,000 Annual Limitation on ISO Vesting.  Each eligible
               -----------------------------------------
     employee may be granted Options treated as ISOs only to the extent that, in
     the aggregate under this Plan and all incentive stock option plans of the
     Company and any Related Corporation, ISOs do not become exercisable for the
     first time by such employee during any calendar year with respect to stock
     having a fair market value (determined at the time the ISOs were granted)
     in excess of $100,000. The Company intends to designate any Options granted
     in excess of such limitation as Non-
<PAGE>

     Qualified Options and the Company shall issue separate certificates to the
     optionee with respect to Options that are Non-Qualified Options and Options
     that are ISOs.

          D.   Determination of Fair Market Value.  If, at the time an Option
               ----------------------------------
     is granted under the Plan, the Company's Common Stock is publicly traded,
     "fair market value" shall be determined as of the date of grant or, if the
     prices or quotes discussed in this sentence are unavailable for such date,
     the last business day for which such prices or quotes are available prior
     to the date of grant and shall mean (i) the average (on that date) of the
     high and low prices of the Common Stock on the principal national
     securities exchange on which the Common Stock is traded, if the Common
     Stock is then traded on a national securities exchange; or (ii) the last
     reported sale price (on that date) of the Common Stock on the Nasdaq
     National Market, if the Common Stock is not then traded on a national
     securities exchange; or (iii) the closing bid price (or average of bid
     prices) last quoted (on that date) by an established quotation service for
     over-the-counter securities, if the Common Stock is not reported on the
     Nasdaq National Market. If the Common Stock is not publicly traded at the
     time an Option is granted under the Plan, "fair market value" shall mean
     the fair value of the Common Stock as determined by the Committee after
     taking into consideration all factors which it deems appropriate,
     including, without limitation, recent sale and offer prices of the Common
     Stock in private transactions negotiated at arm's length.


     7.   Option Duration.  Subject to earlier termination as provided in
          ---------------
paragraphs 9 and 10 or in the agreement relating to such Option, each Option
shall expire on the date specified by the Committee, but not more than (i) ten
years from the date of grant in the case of Options generally and (ii) five
years from the date of grant in the case of ISOs granted to an employee owning
stock possessing more than ten percent (10%) of the total combined voting power
of all classes of stock of the Company or any Related Corporation, as determined
under paragraph 6(B). Subject to earlier termination as provided in paragraphs 9
and 10, the term of each ISO shall be the term set forth in the original
instrument granting such ISO, except with respect to any part of such ISO that
is converted into a Non-Qualified Option pursuant to paragraph 16.


     8.   Exercise of Option.  Subject to the provisions of Paragraphs 9 through
          ------------------
12, each Option granted under the Plan shall be exercisable as follows:

          A.   Vesting.  The Option shall either be fully exercisable on the
               -------
     date of grant or shall become exercisable thereafter in such installments
     as the Committee may specify.

          B.   Full Vesting of Installments.  Once an installment becomes
               ----------------------------
     exercisable it shall remain exercisable until expiration or termination of
     the Option, unless otherwise specified by the Committee.

          C.   Partial Exercise.  Each Option or installment may be exercised
               ----------------
     at any time or from time to time, in whole or in part, for up to the total
     number of shares with respect to which it is then exercisable.

          D.  Acceleration of Vesting.  The Committee shall have the right to
              -----------------------
     accelerate the date that any installment of any Option becomes exercisable;
     provided that the Committee shall not, without the consent of an optionee,
     accelerate the permitted exercise date of any installment of any Option
     granted to any employee as an ISO (and not previously converted into a Non-
     Qualified Option pursuant to paragraph 16) if such acceleration would
     violate the annual vesting limitation contained in Section 422(d) of the
     Code, as described in paragraph 6(C).


     9.  Termination of Employment.  Unless otherwise specified in the agreement
         -------------------------
relating to such ISO, if an ISO optionee ceases to be employed by the Company
and all Related Corporations other than
<PAGE>

by reason of death or disability as defined in paragraph 10, no further
installments of his or her ISOs shall become exercisable, and his or her ISOs
shall terminate on the earlier of (a) three months after the date of termination
of his or her employment, or (b) their specified expiration dates, except to the
extent that such ISOs (or unexercised installments thereof) have been converted
into Non-Qualified Options pursuant to paragraph 16. For purposes of this
paragraph 9, employment shall be considered as continuing uninterrupted during
any bona fide leave of absence (such as those attributable to illness, military
obligations or governmental service) provided that the period of such leave does
not exceed 90 days or, if longer, any period during which such optionee's right
to reemployment is guaranteed by statute or by contract. A bona fide leave of
absence with the written approval of the Committee shall not be considered an
interruption of employment under this paragraph 9, provided that such written
approval contractually obligates the Company or any Related Corporation to
continue the employment of the optionee after the approved period of absence.
ISOs granted under the Plan shall not be affected by any change of employment
within or among the Company and Related Corporations, so long as the optionee
continues to be an employee of the Company or any Related Corporation. Nothing
in the Plan shall be deemed to give any grantee of any Stock Right the right to
be retained in employment or other service by the Company or any Related
Corporation for any period of time.


     10.  Death; Disability.
          -----------------

             A.   Death.  If an ISO optionee ceases to be employed by the
                  -----
     Company and all Related Corporations by reason of his or her death, any ISO
     owned by such optionee may be exercised, to the extent otherwise
     exercisable on the date of death, by the estate, personal representative or
     beneficiary who has acquired the ISO by will or by the laws of descent and
     distribution, until the earlier of (i) the specified expiration date of the
     ISO or (ii) 180 days from the date of the optionee's death.

             B.  Disability.  If an ISO optionee ceases to be employed by the
                 ----------
     Company and all Related Corporations by reason of his or her disability,
     such optionee shall have the right to exercise any ISO held by him or her
     on the date of termination of employment, for the number of shares for
     which he or she could have exercised it on that date, until the earlier of
     (i) the specified expiration date of the ISO or (ii) 180 days from the date
     of the termination of the optionee's employment. For the purposes of the
     Plan, the term "disability" shall mean "permanent and total disability" as
     defined in Section 22(e)(3) of the Code or any successor statute.

     11.     Assignability.  No Stock Right shall be assignable or transferable
             -------------
by the grantee except by will, by the laws of descent and distribution or, in
the case of Non-Qualified Options only, pursuant to a valid domestic relations
order. Except as set forth in the previous sentence, during the lifetime of a
grantee each Stock Right shall be exercisable only by such grantee.

     12.     Terms and Conditions of Options.  Options shall be evidenced by
             -------------------------------
instruments (which need not be identical) in such forms as the Committee may
from time to time approve. Such instruments shall conform to the terms and
conditions set forth in paragraphs 6 through 11 hereof and may contain such
other provisions as the Committee deems advisable which are not inconsistent
with the Plan, including restrictions applicable to shares of Common Stock
issuable upon exercise of Options. The Committee may specify that any Non-
Qualified Option shall be subject to the restrictions set forth herein with
respect to ISOs, or to such other termination and cancellation provisions as the
Committee may determine. The Committee may from time to time confer authority
and responsibility on one or more of its own members and/or one or more officers
of the Company to execute and deliver such instruments. The proper officers of
the Company are authorized and directed to take any and all action necessary or
advisable from time to time to carry out the terms of such instruments.
<PAGE>

     13.  Adjustments.  Upon the occurrence of any of the following events, an
          -----------
optionee's rights with respect to Options granted to such optionee hereunder
shall be adjusted as hereinafter provided, unless otherwise specifically
provided in the written agreement between the optionee and the Company relating
to such Option:

             A.  Stock Dividends and Stock Splits.  If the shares of Common
                 --------------------------------
     Stock shall be subdivided or combined into a greater or smaller number of
     shares or if the Company shall issue any shares of Common Stock as a stock
     dividend on its outstanding Common Stock, the number of shares of Common
     Stock deliverable upon the exercise of Options shall be appropriately
     increased or decreased proportionately, and appropriate adjustments shall
     be made in the purchase price per share to reflect such subdivision,
     combination or stock dividend.

             B.  Consolidations or Mergers.  If the Company is to be
                 -------------------------
     consolidated with or acquired by another entity in a merger or other
     reorganization in which the holders of the outstanding voting stock of the
     Company immediately preceding the consummation of such event, shall,
     immediately following such event, hold, as a group, less than a majority of
     the voting securities of the surviving or successor entity, or in the event
     of a sale of all or substantially all of the Company's assets or otherwise
     (each, an "Acquisition"), the Committee or the board of directors of any
     entity assuming the obligations of the Company hereunder (the "Successor
     Board"), shall, as to outstanding Options, either (i) make appropriate
     provision for the continuation of such Options by substituting on an
     equitable basis for the shares then subject to such Options either (a) the
     consideration payable with respect to the outstanding shares of Common
     Stock in connection with the Acquisition, (b) shares of stock of the
     surviving or successor corporation or (c) such other securities as the
     Successor Board deems appropriate, the fair market value of which shall not
     materially exceed the fair market value of the shares of Common Stock
     subject to such Options immediately preceding the Acquisition; or (ii) upon
     written notice to the optionees, provide that all Options must be
     exercised, to the extent then exercisable or to be exercisable as a result
     of the Acquisition, within a specified number of days of the date of such
     notice, at the end of which period the Options shall terminate; or (iii)
     terminate all Options in exchange for a cash payment equal to the excess of
     the fair market value of the shares subject to such Options (to the extent
     then exercisable or to be exercisable as a result of the Acquisition) over
     the exercise price thereof.

             C.  Recapitalization or Reorganization.  In the event of a
                 ----------------------------------
     recapitalization or reorganization of the Company (other than a transaction
     described in subparagraph B above) pursuant to which securities of the
     Company or of another corporation are issued with respect to the
     outstanding shares of Common Stock, an optionee upon exercising an Option
     shall be entitled to receive for the purchase price paid upon such exercise
     the securities he or she would have received if he or she had exercised
     such Option prior to such recapitalization or reorganization.

             D.  Modification of ISOs.  Notwithstanding the foregoing, any
                 --------------------
     adjustments made pursuant to subparagraphs A, B or C with respect to ISOs
     shall be made only after the Committee, after consulting with counsel for
     the Company, determines whether such adjustments would constitute a
     "modification" of such ISOs (as that term is defined in Section 424 of the
     Code) or would cause any adverse tax consequences for the holders of such
     ISOs. If the Committee determines that such adjustments made with respect
     to ISOs would constitute a modification of such ISOs or would cause adverse
     tax consequences to the holders, it may refrain from making such
     adjustments.

             E.  Dissolution or Liquidation.  In the event of the proposed
                 --------------------------
     dissolution or liquidation of the Company, each Option will terminate
     immediately prior to the consummation of such proposed action or at such
     other time and subject to such other conditions as shall be determined by
     the Committee.
<PAGE>

          F.   Issuances of Securities.  Except as expressly provided herein,
               -----------------------
     no issuance by the Company of shares of stock of any class, or securities
     convertible into shares of stock of any class, shall affect, and no
     adjustment by reason thereof shall be made with respect to, the number or
     price of shares subject to Options. No adjustments shall be made for
     dividends paid in cash or in property other than securities of the Company.

          G.   Fractional Shares.  No fractional shares shall be issued under
               -----------------
     the Plan and the optionee shall receive from the Company cash in lieu of
     such fractional shares.

          H.   Adjustments.  Upon the happening of any of the events described
               -----------
     in subparagraphs A, B or C above, the class and aggregate number of shares
     set forth in paragraph 4 hereof that are subject to Stock Rights which
     previously have been or subsequently may be granted under the Plan shall
     also be appropriately adjusted to reflect the events described in such
     subparagraphs. The Committee or the Successor Board shall determine the
     specific adjustments to be made under this paragraph 13 and, subject to
     paragraph 2, its determination shall be conclusive.

     14.  Means of Exercising Options.  An Option (or any part or installment
          ---------------------------
thereof) shall be exercised by giving written notice to the Company at its
principal office address, or to such transfer agent as the Company shall
designate. Such notice shall identify the Option being exercised and specify the
number of shares as to which such Option is being exercised, accompanied by full
payment of the purchase price therefor either (a) in United States dollars in
cash or by check, (b) at the discretion of the Committee, through delivery of
shares of Common Stock having a fair market value equal as of the date of the
exercise to the cash exercise price of the Option, (c) at the discretion of the
Committee, by delivery of the grantee's personal recourse note bearing interest
payable not less than annually at no less than 100% of the lowest applicable
Federal rate, as defined in Section 1274(d) of the Code, (d) at the discretion
of the Committee and consistent with applicable law, through the delivery of an
assignment to the Company of a sufficient amount of the proceeds from the sale
of the Common Stock acquired upon exercise of the Option and an authorization to
the broker or selling agent to pay that amount to the Company, which sale shall
be at the participant's direction at the time of exercise, or (e) at the
discretion of the Committee, by any combination of (a), (b), (c) and (d) above.
If the Committee exercises its discretion to permit payment of the exercise
price of an ISO by means of the methods set forth in clauses (b), (c), (d) or
(e) of the preceding sentence, such discretion shall be exercised in writing at
the time of the grant of the ISO in question. The holder of an Option shall not
have the rights of a shareholder with respect to the shares covered by such
Option until the date of issuance of a stock certificate to such holder for such
shares. Except as expressly provided above in paragraph 13 with respect to
changes in capitalization and stock dividends, no adjustment shall be made for
dividends or similar rights for which the record date is before the date such
stock certificate is issued.

     15.  Term and Amendment of Plan.  This Plan was adopted by the Board on
          --------------------------
July 25, 1996, subject, with respect to the validation of ISOs granted under the
Plan, to approval of the Plan by the stockholders of the Company at the next
Meeting of Stockholders or, in lieu thereof, by written consent. If the approval
of stockholders is not obtained prior to July 25, 1997, any grants of ISOs under
the Plan made prior to that date shall be Non-Qualified Options. The Plan shall
expire at the end of the day on July 24, 2006 (except as to Options outstanding
on that date). Subject to the provisions of paragraph 5 above, Options may be
granted under the Plan prior to the date of stockholder approval of the Plan.
The Board may terminate or amend the Plan in any respect at any time, except
that, without the approval of the stockholders obtained within 12 months before
or after the Board adopts a resolution authorizing any of the following actions:
(a) the total number of shares that may be issued under the Plan may not be
increased (except by adjustment pursuant to paragraph 13); (b) the provisions of
paragraph 3 regarding eligibility for grants of ISOs may not be modified; (c)
the provisions of paragraph 6(B) regarding the
<PAGE>

exercise price at which shares may be offered pursuant to ISOs may not be
modified (except by adjustment pursuant to paragraph 13); and (d) the expiration
date of the Plan may not be extended. Except as otherwise provided in this
paragraph 15, in no event may action of the Board or stockholders alter or
impair the rights of a grantee, without such grantee's consent, under any Stock
Right previously granted to such grantee.

     16.  Modifications of ISOs; Conversion of ISOs into Non-Qualified Options.
          --------------------------------------------------------------------
Subject to Paragraph 13D, without the prior written consent of the holder of an
ISO, the Committee shall not alter the terms of such ISO (including the means of
exercising such ISO) if such alteration would constitute a modification (within
the meaning of Section 424(h)(3) of the Code). The Committee, at the written
request or with the written consent of any optionee, may in its discretion take
such actions as may be necessary to convert such optionee's ISOs (or any
installments or portions of installments thereof) that have not been exercised
on the date of conversion into Non-Qualified Options at any time prior to the
expiration of such ISOs, regardless of whether the optionee is an employee of
the Company or a Related Corporation at the time of such conversion. Such
actions may include, but shall not be limited to, extending the exercise period
or reducing the exercise price of the appropriate installments of such ISOs. At
the time of such conversion, the Committee (with the consent of the optionee)
may impose such conditions on the exercise of the resulting Non-Qualified
Options as the Committee in its discretion may determine, provided that such
conditions shall not be inconsistent with this Plan. Nothing in the Plan shall
be deemed to give any optionee the right to have such optionee's ISOs converted
into Non-Qualified Options, and no such conversion shall occur until and unless
the Committee takes appropriate action. Upon the taking of such action, the
Company shall issue separate certificates to the optionee with respect to
Options that are Non-Qualified Options and Options that are ISOs.

     17.  Application Of Funds.  The proceeds received by the Company from the
          --------------------
sale of shares pursuant to Options granted and Purchases authorized under the
Plan shall be used for general corporate purposes.

     18.  Notice to Company of Disqualifying Disposition.  By accepting an ISO
          ----------------------------------------------
granted under the Plan, each optionee agrees to notify the Company in writing
immediately after such optionee makes a Disqualifying Disposition (as described
in Sections 421, 422 and 424 of the Code and regulations thereunder) of any
stock acquired pursuant to the exercise of ISOs granted under the Plan. A
Disqualifying Disposition is generally any disposition occurring on or before
the later of (a) the date two years following the date the ISO was granted or
(b) the date one year following the date the ISO was exercised.

     19.  Withholding of Additional Income Taxes.  Upon the exercise of a Non-
          --------------------------------------
Qualified Option, the grant of an Award, the making of a Purchase of Common
Stock for less than its fair market value, the making of a Disqualifying
Disposition (as defined in paragraph 18), the vesting or transfer of restricted
stock or securities acquired on the exercise of an Option hereunder, or the
making of a distribution or other payment with respect to such stock or
securities, the Company may withhold taxes in respect of amounts that constitute
compensation includible in gross income. The Committee in its discretion may
condition (i) the exercise of an Option, (ii) the grant of an Award, (iii) the
making of a Purchase of Common Stock for less than its fair market value, or
(iv) the vesting or transferability of restricted stock or securities acquired
by exercising an Option, on the grantee's making satisfactory arrangement for
such withholding. Such arrangement may include payment by the grantee in cash or
by check of the amount of the withholding taxes or, at the discretion of the
Committee, by the grantee's delivery of previously held shares of Common Stock
or the withholding from the shares of Common Stock otherwise
<PAGE>

deliverable upon exercise of a Option shares having an aggregate fair market
value equal to the amount of such withholding taxes.

     20.  Governmental Regulation.  The Company's obligation to sell and deliver
          -----------------------
shares of the Common Stock under this Plan is subject to the approval of any
governmental authority required in connection with the authorization, issuance
or sale of such shares.

     Government regulations may impose reporting or other obligations on the
Company with respect to the Plan. For example, the Company may be required to
send tax information statements to employees and former employees that exercise
ISOs under the Plan, and the Company may be required to file tax information
returns reporting the income received by grantees of Options in connection with
the Plan.

     21.  Governing Law.  The validity and construction of the Plan and the
          -------------
instruments evidencing Options shall be governed by the laws of the State of
Delaware, or the laws of any jurisdiction in which the Company or its successors
in interest may be organized.
<PAGE>

                                AMENDMENT NO. 1

                                    TO THE

                               DAVOX CORPORATION

                                1996 STOCK PLAN


     Pursuant to action taken by the Board of Directors of Davox Corporation
(the "Corporation") on April 27, 1997, the Corporation's 1996 Stock Plan (the
"Plan") is amended effective as of such date by:


1.   Amending and restating Section 6(A) thereof so that said Section 6(A) shall
read in its entirety as follows:


"A.  Price for non-Qualified Options, Awards and Purchases.  Subject to
     ------------------------------------------------------
Paragraph 2D (relating to compliance with Section 162(m) of the Code), the
exercise price per share specified in the agreement relating to each Non-
Qualified Option granted, and the purchase price per share of stock granted in
any Award or authorized as a Purchase, under the Plan may be less than the fair
market value of the Common Stock of the Company on the date of grant, provided
that (i) in no event shall such exercise price or such purchase price be less
than the minimum legal consideration required therefor under the laws of any
jurisdiction in which the Company or its successors in interest may be
organized, (ii) options representing the right to purchase in the aggregate a
maximum of ten percent (10%) of the number of shares authorized under the Plan
(as set forth in Section 4 hereof) may be granted with exercise prices below
fair market value, and (iii) no option may be granted with an exercise price of
less than eighty-five percent (85%) of fair market value. The Committee may, in
its discretion, subject any Stock Right granted under the Plan to any terms or
conditions necessary for compensation recognized in connection with the exercise
of such Stock Right or the disposition of Common Stock acquired pursuant to such
Stock Right, to constitute qualified performance-based compensation under
Section 162(m) of the Code and applicable regulations promulgated thereunder."

Except as modified hereby, the Plan shall remain in full force and effect.
<PAGE>

                                AMENDMENT NO. 2

                                    TO THE

                               DAVOX CORPORATION

                                1996 STOCK PLAN


     Pursuant to actions taken by the Board of Directors of Davox Corporation
(the "Corporation"), the Corporation's 1996 Stock Plan (the "Plan") is amended
as follows:


1.   Amending Section 4 thereof to increase the Plan Share Limit so that the
aggregate number of shares which may be issued pursuant to the Plan is increased
to 1,950,000 shares.

Except as modified hereby, the Plan shall remain in full force and effect.
<PAGE>

                                AMENDMENT NO. 3
                                    TO THE
                               DAVOX CORPORATION
                                1996 STOCK PLAN


     Pursuant to action taken by the Board of Directors of Davox Corporation
(the "Corporation") on July 23, 1998, the Corporation's 1996 Stock Plan (the
"Plan") is amended effective as of such date by:

     1.   Amending and restating the first (1st) sentence of Section 2(C) of the
Plan so that said sentence shall read in its entirety as follows:

          "Stock Rights may be granted to members of the Board who are also
          employees of the Company; members of the Board who are not employees
          of the Company shall not be eligible to receive Stock Rights."

     2.   Amending and restating the second (2nd) sentence of Section 3 of the
Plan so that said sentence shall read in its entirety as follows:

          "Non-Qualified Options, Awards and authorizations to make Purchases
          may be granted to any employee, officer or director (provided such
          director is also an employee) or consultant of the Company or any
          Related Corporation."

     3.   Amending and restating the fifth (5th) sentence of Section 15 of the
Plan so that said sentence shall read in its entirety as follows:

          "The Board may terminate or amend the Plan in any respect at any time,
          except that, without the approval of the stockholders obtained within
          12 months before or after the Board adopts a resolution authorizing
          any of the following actions: (a) the total number of shares that may
          be issued under the Plan may not be increased (except by adjustment
          pursuant to paragraph 13); (b) the provisions of paragraph 3 regarding
          eligibility for grants of Stock Rights may not be modified; (c) the
          provisions of paragraph 6(B) regarding the exercise price at which
          shares may be offered pursuant to ISOs may not be modified (except by
          adjustment pursuant to paragraph 13); (d) the expiration date of the
          Plan may not be extended; (e) the exercise price of more than ten
          percent (10%) of outstanding ISOs may not be reduced; and (f) benefits
          under the Plan and the group of persons eligible to receive Stock
          Rights under the Plan may not be increased."

     Except as modified hereby, the Plan shall remain in full force and effect.
<PAGE>

                                AMENDMENT NO. 4

                                    TO THE

                               DAVOX CORPORATION

                                1996 STOCK PLAN


     Pursuant to action taken by the Board of Directors of Davox Corporation
(the "Corporation") on January 26, 1999, the Corporation's 1996 Stock Plan (the
"Plan") is amended effective as of such date by:


1.   Amending Section 4 thereof to increase the Plan Share Limit so that the
aggregate number of shares which may be issued pursuant to the Plan is increased
to 2,700,000 shares.

Except as modified hereby, the Plan shall remain in full force and effect.
<PAGE>

                                AMENDMENT NO. 5

                                    TO THE

                               DAVOX CORPORATION

                                1996 STOCK PLAN


     Pursuant to action taken by the Board of Directors of Davox Corporation
(the "Corporation") on January 26, 2000, the Corporation's 1996 Stock Plan (the
"Plan") is amended effective as of such date by:


1.   Amending Section 4 thereof to increase the Plan Share Limit so that the
aggregate number of shares which may be issued pursuant to the Plan is increased
to 3,350,000 shares.

Except as modified hereby, the Plan shall remain in full force and effect.
<PAGE>

                                AMENDMENT NO. 6

                                    TO THE

                               DAVOX CORPORATION

                                1996 STOCK PLAN


     Pursuant to action taken by the Board of Directors of Davox Corporation
(the "Corporation") on May 4, 2000, the Corporation's 1996 Stock Plan (the
"Plan") is amended effective as of such date by:


1.   Amending and restating the fifth (5th) sentence of Section 15 of the Plan
so that said sentence shall read in its entirety as follows:

          "The Board may terminate or amend the Plan in any respect at any time,
          except that, without the approval of the stockholders obtained within
          12 months before or after the Board adopts a resolution authorizing
          any of the following actions: (a) the total number of shares that may
          be issued under the Plan may not be increased (except by adjustment
          pursuant to paragraph 13); (b) the provisions of paragraph 3 regarding
          eligibility for grants of Stock Rights may not be modified; (c) the
          provisions of paragraph 6(B) regarding the exercise price at which
          shares may be offered pursuant to ISOs may not be modified (except by
          adjustment pursuant to paragraph 13); (d) the expiration date of the
          Plan may not be extended; (e) the exercise price of more than ten
          percent (10%) of outstanding Non-Qualified Options and ISOs may not be
          reduced; and (f) benefits under the Plan and the group of persons
          eligible to receive Stock Rights under the Plan may not be increased."

Except as modified hereby, the Plan shall remain in full force and effect.