Document:

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                                                                     EXHIBIT 4.8

                      AMENDMENT NO. 2 TO RIGHTS AGREEMENT

     THIS AMENDMENT NO. 2 TO RIGHTS AGREEMENT (this "Amendment"), dated as of
December 13, 1999, is between Teltrend Inc., a Delaware corporation (the
"Company"), and LaSalle Bank National Association, as Rights Agent (the "Rights
Agent").

     WHEREAS, the Company and the Rights Agent are parties to a Rights
Agreement, dated as of January 16, 1997, as amended by Amendment No. 1 to
Rights Agreement, dated as of June 1, 1998, between the Company and the Rights
Agent (collectively, the "Rights Agreement"); and

     WHEREAS, pursuant to Section 27 of the Rights Agreement, the Company and
the Rights Agent desire to further amend the Rights Agreement as set forth
below;

     NOW, THEREFORE, the Rights Agreement is hereby amended as follows:

     1.   Amendment of Section 1.

          Section 1 of the Rights Agreement is amended by adding thereto new
subsection (ff) which shall read as follows:

          "(ff) 'Merger Agreement' shall mean the Agreement and Plan
          of Merger, dated as of December 13, 1999, by and among
          Westell Technologies, Inc., Theta Acquisition Corp. and the
          Company, as the same may be amended from time to time."

     2.   Amendment of Section 7.

          Paragraph (a) of Section 7 of the Rights Agreement is amended by
deleting the word "or" immediately preceding clause (iii) thereof and by adding
the following new phrase immediately following clause (iii) thereof: "or (iv)
immediately prior to the Effective Time (as defined in the Merger Agreement)."

     3.   Addition of New Section 35.

          The Rights Agreement is amended by adding a Section 35 thereof which
shall read as follows:

          "Section 35.  Exception For Merger Agreement. Notwithstanding
          any provision of this Agreement to the contrary, neither a
          Distribution Date, Flip-In Event nor a Stock Acquisition Date
          shall be deemed to have occurred, none of Parent, Subsidiary
          (as these terms are defined in the Merger Agreement) or any of
          their Affiliates or Associates

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          shall be deemed to have become an Acquiring Person, and no
          holder of any Rights shall be entitled to exercise such
          Rights under, or be entitled to any rights pursuant to, any
          of Sections 3(a), 7(a), 11(a) or 13 of this Agreement, in
          any such case by reason of (a) the approval, execution or
          delivery of the Merger Agreement or any amendments thereof
          approved in advance by the Board of Directors of the Company
          or (b) the commencement or, prior to termination of the
          Merger Agreement, the consummation of any of the
          transactions contemplated by the Merger Agreement in
          accordance with the provisions of the Merger Agreement,
          including the Merger (as defined in the Merger Agreement)."

     4.   Effectiveness.

     This Amendment shall be deemed effective as of December 13, 1999 as if
executed by both parties hereto on such date.  Except as amended hereby, the
Rights Agreement shall remain in full force and effect and shall be otherwise
unaffected hereby.

     5.   Miscellaneous.

     This Amendment shall be deemed to be a contract made under the laws of the
State of Delaware and for all purposes shall be governed by and construed in
accordance with the laws of such state applicable to contracts to be made and
performed entirely within such state.  This Amendment may be executed in any
number of counterparts, each of such counterparts shall for all purposes be
deemed to be an original, and all such counterparts shall together constitute
but one and the same instrument.  If any term, provision, covenant or
restriction of this Amendment is held by a court of competent jurisdiction or
other authority to be invalid, illegal, or unenforceable, the remainder of the
terms, provisions, covenants and restrictions of this Amendment shall remain in
full force and effect and shall in no way be affected, impaired or invalidated.

            THE REMAINDER OF THIS PAGE WAS LEFT INTENTIONALLY BLANK

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     IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
duly executed as of the date set forth above.

                                      TELTREND INC.

                                      By:     /s/ Douglas P. Hoffmeyer
                                            ----------------------------------
                                      Name:   Douglas P. Hoffmeyer
                                            ----------------------------------
                                      Title:  Senior Vice President, Finance
                                            ----------------------------------

                                      LASALLE BANK NATIONAL ASSOCIATION

                                      By:     /s/ Gregory Malatia
                                            ----------------------------------
                                      Name:   Gregory Malatia
                                            ----------------------------------
                                      Title:  First Vice President
                                            ----------------------------------

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                                                                     Exhibit 4.3

                            SALIX TECHNOLOGIES, INC.
                               OMNIBUS STOCK PLAN

1.       PURPOSE AND TYPES OF AWARDS

         SALIX Technologies, Inc. (the "Company") hereby establishes the SALIX
Technologies, Inc. Omnibus Stock Plan (the "Plan"). The purpose of the Plan is
to promote the long-term growth and profitability of the Company by (i)
providing people who are providing services to the Company with incentives to
improve stockholder value and to contribute to the growth and financial success
of the Company and (ii) enabling the Company to attract, retain and reward the
best-available persons to provide it services.

         The Plan permits the granting of stock options (including incentive
stock options qualifying under Section 422 of the Internal Revenue Code of 1986,
as amended (the "Code") and nonqualified stock options), stock appreciation
rights, restricted or unrestricted stock awards, phantom stock, performance
awards, or any combination of the foregoing (the "Awards").

2.       DEFINITIONS

         Under this Plan, except where the context otherwise indicates, the
following definitions apply:

         (a) "Administrator" shall mean the Board of Directors or such committee
or committees as may be appointed by the Board from time to time to administer
the Plan.

         (b) "Affiliate" shall mean any entity, whether now or hereafter
existing, which controls, is controlled by, or is under common control with, the
Company (including, but not limited to, joint ventures, limited liability
companies, and partnerships). For this purpose, "control" shall mean ownership
of 50% or more of the total combined voting power or value of all classes of
stock or interests of the entity.

         (c) "Award" shall mean any stock option, stock appreciation right,
stock award, phantom stock award, or performance award.

         (d) "Board" shall mean the Board of Directors of the Company.

         (e) "Cause" shall mean, with respect to Grantees who are employees of
the Company, such Grantee's (i) material breach of his or her employment
agreement with the Company, (ii) dishonesty in performing his or her duties for
the Company, (iii) use of drugs or alcohol to an extent which interferes with
the performance of Grantee's duties to the Company, (iv) repeated failure to
devote proper time and attention to the business of the Company, (v) material
and repeated failure to carry out the directions, instructions, policies, rules,
regulations or decisions of the Board of Directors or Officers of the Company,
or (vi) conviction for a felony or other crime involving moral turpitude or
pursuant to which Grantee is imprisoned. For purposes of this definition, the
words "repeated failure" shall mean such failure as has been documented in
writing by the Company as having occurred more than once in any six month
period.

         (f) "Code" shall mean the Internal Revenue Code of 1986, as amended,
and any regulations promulgated thereunder.

         (g) "Common Stock" shall mean shares of common stock of the Company,
par value of $0.01 per share.

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         (h) "Exchange Act" shall mean the Securities Exchange Act of 1934, as
amended.

         (i) "Fair Market Value" of a share of the Company's Common Stock for
any purpose on a particular date shall be determined in a manner such as the
Administrator shall in good faith determine to be appropriate; provided that in
the event the Common Stock shall become registered under Section 12 of the
Exchange Act, then thereafter the Fair Market Value of the Company's Common
Stock for any purpose on a particular date shall mean the last reported sale
price per share of Common Stock, regular way, on such date or, in case no such
sale takes place on such date, the average of the closing bid and asked prices,
regular way, in either case as reported in the principal consolidated
transaction reporting system with respect to securities listed or admitted to
trading on a national securities exchange or included for quotation on the
Nasdaq National Market, or if the Common Stock is not so listed or admitted to
trading or included for quotation, the last quoted price, or if the Common Stock
is not so quoted, the average of the high bid and low asked prices, regular way,
in the over-the-counter market, as reported by the National Association of
Securities Dealers, Inc. Automated Quotation System or, if such system is no
longer in use, the principal other automated quotations system that may then be
in use or, if the Common Stock is not quoted by any such organization, the
average of the closing bid and asked prices, regular way, as furnished by a
professional market maker making a market in the Common Stock as selected in
good faith by the Administrator or by such other source or sources as shall be
selected in good faith by the Administrator. If, as the case may be, the
relevant date is not a trading day, the determination shall be made as of the
first trading day immediately preceding such date. As used herein, the term
"trading day" shall mean a day on which public trading of securities occurs and
is reported in the principal consolidated reporting system referred to above, or
if the Common Stock is not listed or admitted to trading on a national
securities exchange or included for quotation on the Nasdaq National Market, any
business day.

         (j) "Grant Agreement" shall mean a written document memorializing the
terms and conditions of an Award granted pursuant to the Plan and shall
incorporate the terms of the Plan.

         (k) "Grantee" shall mean a person who has been granted an Award
pursuant to this Plan.

         (l) "Parent" shall mean a corporation, whether now or hereafter
existing, within the meaning of the definition of "parent corporation" provided
in Code section 424(e), or any successor thereto.

         (m) "Subsidiary" and "subsidiaries" shall mean only a corporation or
corporations, whether now or hereafter existing, within the meaning of the
definition of "subsidiary corporation" provided in Section 424(f) of the Code,
or any successor thereto.

3.       ADMINISTRATION

         (a) Administration of the Plan. The Plan shall be administered by the
Administrator.

         (b) Powers of the Administrator. The Administrator shall have all the
powers vested in it by the terms of the Plan, such powers to include authority,
in its sole and absolute discretion, to grant Awards under the Plan, prescribe
Grant Agreements evidencing such Awards and establish programs for granting
Awards.

         The Administrator shall have full power and authority to take all other
actions necessary to carry out the purpose and intent of the Plan, including,
but not limited to, the authority to (i) determine the eligible persons to whom,
and the time or times at which Awards shall be granted, (ii) determine the types
of Awards to be granted, (iii) determine the number of shares to be covered by
or used for reference purposes for each Award, (iv) impose such terms,
limitations, restrictions and conditions upon any such Award as the
Administrator shall deem appropriate, (v) modify, amend, extend or renew
outstanding Awards, or accept the surrender of outstanding Awards and substitute
new Awards (provided, however,

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that any modification that would materially adversely affect any outstanding
Award shall not be made without the consent of the Grantee), (vi) to prescribe
the form or forms of the instruments evidencing Awards granted under this Plan;
(vii) to delegate responsibility for Plan operation, management and
administration on such terms, consistent with the Plan, as the Board may
establish; (viii) to delegate to other persons the responsibility for performing
ministerial acts in furtherance of the Plan's purpose; (ix) to engage the
services of persons or organizations in furtherance of the Plan's purpose,
including but not limited to banks, insurance companies, accounting firms,
brokerage firms and consultants; (x) establish objectives and conditions, if
any, for earning Awards and determining whether Awards will be paid after the
end of a performance period.

         The Administrator shall have full power and authority, in its sole and
absolute discretion, to administer and interpret the Plan and to adopt and
interpret such rules, regulations, agreements, guidelines and instruments for
the administration of the Plan and for the conduct of its business as the
Administrator deems necessary or advisable.

         (c) Non-Uniform Determinations. The Administrator's determinations
under the Plan (including without limitation, determinations of the persons to
receive Awards, the form, amount and timing of such Awards, the terms and
provisions of such Awards and the Grant Agreements evidencing such Awards) need
not be uniform and may be made by the Administrator selectively among persons
who receive, or are eligible to receive, Awards under the Plan, whether or not
such persons are similarly situated.

         (d) Limited Liability. To the maximum extent permitted by law, no
member of the Administrator shall be liable for any action taken or decision
made in good faith relating to the Plan or any Award thereunder.

         (e) Indemnification. To the maximum extent permitted by law and by the
Company's charter and by-laws, the members of the Administrator shall be
indemnified by the Company in respect of all their activities under the Plan.

         (f) Effect of Administrator's Decision. All actions taken and decisions
and determinations made by the Administrator on all matters relating to the Plan
pursuant to the powers vested in it hereunder shall be in the Administrator's
sole and absolute discretion and shall be conclusive and binding on all parties
concerned, including the Company, its stockholders, any Grantees in the Plan,
and any other employee of the Company, and their respective successors in
interest.

4.       SHARES AVAILABLE FOR THE PLAN; MAXIMUM AWARDS

         Subject to adjustments as provided in Section 7(a) of the Plan, the
shares of Common Stock that may be issued with respect to Awards granted under
the Plan shall not exceed an aggregate of 3,260,439 shares of Common Stock. The
Company shall reserve such number of shares for Awards under the Plan, subject
to adjustments as provided in Section 7(a) of the Plan. If any Award, or portion
of an Award, under the Plan expires or terminates unexercised, becomes
unexercisable or is forfeited or otherwise terminated, surrendered or canceled
as to any shares, or if any shares of Common Stock are surrendered to the
Company in connection with any Award (whether or not such surrendered shares
were acquired pursuant to any Award), the shares subject to such Award and the
surrendered shares shall thereafter be available for further Awards under the
Plan; provided, however, that any such shares that are surrendered to the
Company in connection with any Award or that are otherwise forfeited after
issuance shall not be available for purchase pursuant to incentive stock options
intended to qualify under Code section 422.

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5.       ELIGIBLE GRANTEES; VESTING.

         (a) Grantees. Participation in the Plan shall be open to all employees,
officers, directors, and consultants of the Company, or of any Affiliate of the
Company, as may be selected by the Administrator from time to time.

         (b) Vesting. A Grantee's rights to the Awards issued under this Plan
shall vest as provided in such Grantee's Grant Agreement.

6.       AWARDS

         The Administrator, in its sole discretion, establishes the terms of all
Awards granted under the Plan. Awards may be granted individually or in tandem
with other types of Awards. All Awards are subject to the terms and conditions
provided in the Grant Agreement.

         (a) Stock Options. The Administrator may from time to time grant to
eligible Grantees Awards of incentive stock options as that term is defined in
Code section 422 or nonqualified stock options; provided, however, that Awards
of incentive stock options shall be limited to employees of the Company or of
any Parent or Subsidiary of the Company. Options intended to qualify as
incentive stock options under Code section 422 must have an exercise price at
least equal to Fair Market Value on the date of grant, but nonqualified stock
options may be granted with an exercise price less than Fair Market Value. No
stock option shall be an incentive stock option unless so designated by the
Administrator at the time of grant or in the Grant Agreement evidencing such
stock option.

         (b) Stock Appreciation Rights. The Administrator may from time to time
grant to eligible Grantees Awards of Stock Appreciation Rights ("SAR"). An SAR
entitles the Grantee to receive, subject to the provisions of the Plan and the
Grant Agreement, a payment having an aggregate value equal to the product of (i)
the excess of (A) the Fair Market Value on the exercise date of one share of
Common Stock over (B) the base price per share specified in the Grant Agreement,
times (ii) the number of shares specified by the SAR, or portion thereof, which
is exercised. Payment by the Company of the amount receivable upon any exercise
of an SAR may be made by the delivery of Common Stock or cash, or any
combination of Common Stock and cash, as determined in the sole discretion of
the Administrator. If upon settlement of the exercise of an SAR a Grantee is to
receive a portion of such payment in shares of Common Stock, the number of
shares shall be determined by dividing such portion by the Fair Market Value of
a share of Common Stock on the exercise date. No fractional shares shall be used
for such payment and the Administrator shall determine whether cash shall be
given in lieu of such fractional shares or whether such fractional shares shall
be eliminated.

         (c) Stock Awards. The Administrator may from time to time grant
restricted or unrestricted stock Awards to eligible Grantees in such amounts, on
such terms and conditions, and for such consideration, including no
consideration or such minimum consideration as may be required by law, as it
shall determine. A stock Award may be paid in Common Stock, in cash, or in a
combination of Common Stock and cash, as determined in the sole discretion of
the Administrator.

         (d) Phantom Stock. The Administrator may from time to time grant Awards
to eligible Grantees denominated in stock-equivalent units ("phantom stock") in
such amounts and on such terms and conditions as it shall determine. Phantom
stock units granted to a Grantee shall be credited to a bookkeeping reserve
account solely for accounting purposes and shall not require a segregation of
any of the Company's assets. An Award of phantom stock may be settled in Common
Stock, in cash, or in a combination of Common Stock and cash, as determined in
the sole discretion of the Administrator. Except as otherwise provided in the
applicable Grant Agreement, the Grantee shall not have the rights of

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a stockholder with respect to any shares of Common Stock represented by a
phantom stock unit solely as a result of the grant of a phantom stock unit to
the Grantee.

         (e) Performance Awards. The Administrator may, in its discretion, grant
performance awards which become payable on account of attainment of one or more
performance goals established by the Administrator. Performance awards may be
paid by the delivery of Common Stock or cash, or any combination of Common Stock
and cash, as determined in the sole discretion of the Administrator. Performance
goals established by the Administrator may be based on the Company's or an
Affiliate's operating income or one or more other business criteria selected by
the Administrator that apply to an individual or group of individuals, a
business unit, or the Company or an Affiliate as a whole, over such performance
period as the Administrator may designate.

7.       ADJUSTMENTS; BUSINESS COMBINATIONS

         (a) Corporate Transactions Affecting Common Stock. In the event of
changes in the Common Stock of the Company by reason of any stock dividend,
split-up, recapitalization, merger, consolidation, business combination or
exchange of shares and the like, the Administrator shall, in its discretion,
make appropriate adjustments to the maximum number and kind of shares reserved
for issuance or with respect to which Awards may be granted under the Plan as
provided in Section 4 of the Plan and to the number, kind and price of shares
covered by outstanding Awards, and shall, in its discretion and without the
consent of holders of Awards, make any other adjustments in outstanding Awards,
including but not limited to reducing the number of shares subject to Awards or
providing or mandating alternative settlement methods such as settlement of the
Awards in cash or in shares of Common Stock or other securities of the Company
or of any other entity, or in any other matters which relate to Awards as the
Administrator shall, in its sole discretion, determine to be necessary or
appropriate.

         The Administrator, in its sole discretion, may make any modifications
to any Awards, including but not limited to cancellation, forfeiture, surrender
or other termination of the Awards in whole or in part regardless of the vested
status of the Award, in order to facilitate any business combination that is
authorized by the Board to comply with requirements for treatment as a pooling
of interests transaction for accounting purposes under generally accepted
accounting principles.

         The Administrator is authorized to make, in its discretion, adjustments
in the terms and conditions of, and the criteria included in, Awards in
recognition of unusual or nonrecurring events affecting the Company, or the
financial statements of the Company or any Affiliate, or of changes in
applicable laws, regulations, or accounting principles, whenever the
Administrator determines that such adjustments are appropriate in order to
prevent dilution or enlargement of the benefits or potential benefits intended
to be made available under the Plan.

         Notwithstanding anything contained in this Paragraph 7 or elsewhere in
this Plan to the contrary, any modification that would materially adversely
affect any outstanding Award shall not be made without the consent of the
Grantee.

         (b) Substitution of Awards in Mergers and Acquisitions. Awards may be
granted under the Plan from time to time in substitution for Awards held by
employees, officers, or directors of entities who become or are about to become
employees, officers, or directors of the Company or an Affiliate as the result
of a merger or consolidation of the employing entity with the Company or an
Affiliate, or the acquisition by the Company or an Affiliate of the assets or
stock of the employing entity. The terms and conditions of any substitute Awards
so granted may vary from the terms and conditions set forth herein to the extent
that the Administrator deems appropriate at the time of grant to conform the
substitute Awards to the provisions of the awards for which they are
substituted.

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         (c) Drag Along Rights Pertaining to Option Holders. If at any time any
stockholder of the Company or group of stockholders owning a majority or more of
the voting capital stock of the Company proposes to enter into any transaction
involving (i) the sale of all or substantially all of the assets of the Company;
(ii) the sale of more than fifty percent (50%) of the outstanding common stock
of the Company in a non-public sale; (iii) any merger, share exchange,
consolidation or other reorganization or business combination of the Company, if
immediately after such transaction either (A) persons who were directors of the
Company immediately prior to such transaction do not constitute at least a
majority of the directors of the surviving entity, or (B) persons who hold a
majority of the voting capital stock of the surviving entity are not persons who
held a majority of the voting capital stock of the Company immediately prior to
such transaction; or (iv) the dissolution or liquidation of the Company, the
Company and/or the transferring stockholders may require the Grantee to
participate in such transaction by giving the Grantee written notice thereof at
least ten (10) days in advance of the date of the transaction or the date that
tender is required, as the case may be. Upon receipt of such notice, the Grantee
shall sell, assign, tender or transfer the same percentage of the shares subject
to his options (to which the Grantee has vested) as the percentage of the shares
of Stock proposed to be sold, assigned, tendered or transferred by the
transferring stockholders collectively, upon the same terms and conditions
applicable to the transferring stockholders and at a value equal to the
difference between the exercise price per share under the options granted
hereunder and the value per share of Stock the transferring stockholders will
receive pursuant to the terms of the transaction (whether such value is paid in
cash or securities). The provisions of this Paragraph 7(c) shall not impair a
Grantee's right to accelerated vesting, if any, if such provisions are
applicable to the transaction covered by this Paragraph. If the Grantee has
options to purchase Stock of the Company other than options granted hereunder,
and such options are subject to terms similar those set forth in this Paragraph
7(c), then the Grantee's options shall be transferred in the order in which they
were granted. The provisions of this Paragraph 7(c) shall apply in the event of
the Grantee's death, to the Grantee's executor, personal representative or the
person(s) to whom the options shall have been transferred by will or the laws of
descent and distribution, as though such person is the Grantee.

8.       CERTAIN EVENTS AFFECTING RIGHTS.

         (a) Death of Grantee. If the Grantee shall die and shall not have
exercised his rights with respect to Awards which are exercisable at such time,
the Awards may be distributed to the Grantee's estate and exercised by the
Grantee's executors or administrators or by any person or persons who shall have
acquired the Awards directly from the Grantee by bequest or inheritance, subject
to the terms of Paragraphs 5(b) and (c). In no event, however, shall the Award
be exercisable more than one hundred eighty (180) days after the date of the
Grantee's death. In the event an Award is transferred to an Grantee's executor
or administrator, to the distributees of the estate, or to a person upon whom
such right devolves by reason of the Grantee's death, then the Award shall be
nontransferable by the Grantee's executor or administrator or by such person.

         (b) Termination of Employment. In the event that a Grantee who is an
employee as of the date of grant of Awards hereunder shall cease to be employed
by the Company or its subsidiaries for any reason (including without limitation
disability or retirement) other than his death and other than a termination for
"Cause," as such term is defined herein, all vested Awards held by him pursuant
to the Plan and not previously exercised at the date of such termination may be
exercised for a period of ninety (90) days after the date of termination of the
Grantee's employment, subject to the terms of Paragraph 5(b) and the condition
that no Award shall be exercisable after the expiration of ten (10) years from
the date it is granted. If the termination of employment is a termination by the
Company for "Cause," then all Awards held by him pursuant to the Plan and not
previously exercised at the date of such termination shall terminate immediately
and become void and of no effect. Authorized leaves of absence or absence for
military service shall not constitute termination of employment for the purpose
of the Plan.

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9.       RIGHTS AS A STOCKHOLDER.

         A Grantee or a transferee of an Award shall have no rights as a
stockholder with respect to any shares covered by his Award until the date of
issuance of a stock certificate to him for such shares. 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
Paragraph 7 hereof.

10.      RESTRICTIONS ON STOCK IN THE COMPANY.

         Once a Grantee has been issued a stock certificate for shares of Common
Stock of the Company acquired pursuant to an Award granted in accordance with
this Plan, the following restrictions shall apply:

         (a) Restrictive Legends. The certificates evidencing the shares
purchased will bear the following legends:

         THE SHARES OF STOCK REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO
         RIGHTS OF FIRST OFFER AND FIRST REFUSAL IN FAVOR OF SALIX TECHNOLOGIES,
         INC., AS SET FORTH IN THE SALIX TECHNOLOGIES, INC. OMNIBUS STOCK PLAN,
         AS AMENDED FROM TIME TO TIME.

         SECURITIES REPRESENTED BY THIS CERTIFICATE (THE "SECURITIES") HAVE BEEN
         (I) ACQUIRED FOR INVESTMENT; AND (II) ISSUED AND SOLD IN RELIANCE UPON
         EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933 (THE "1933
         ACT"). THE SECURITIES CANNOT BE OFFERED FOR SALE, SOLD OR TRANSFERRED
         OTHER THAN PURSUANT TO (A) AN EFFECTIVE REGISTRATION UNDER THE 1933 ACT
         OR IN A TRANSACTION WHICH IS OTHERWISE IN COMPLIANCE WITH THE 1933 ACT;
         AND (B) EVIDENCE SATISFACTORY TO THE ISSUER OF COMPLIANCE WITH THE
         APPLICABLE SECURITIES LAWS OF ANY OTHER JURISDICTION. THE ISSUER SHALL
         BE ENTITLED TO RELY UPON AN OPINION OF COUNSEL TO THE ISSUER WITH
         RESPECT TO COMPLIANCE WITH THE ABOVE LAWS.

         (b) Rights of First Offer and First Refusal. A Grantee may not sell,
exchange, or otherwise transfer the Common Stock acquired hereunder without
first offering the Common Stock to the Company. The Company shall have sixty
(60) days after receipt of written notification from the Grantee of his
intention to transfer the Common Stock to elect to purchase all, but not less
than all, of the Common Stock from the Grantee for the price and on the terms
set forth in the Grantee's notice. In the event that the offer is not accepted
by the Company, the Grantee shall thereafter have the right to negotiate a sale
of such Common Stock to any other person; provided, however, that the Grantee
shall not have the right to complete such sale without first presenting the
Company with a bona fide written offer for such Common Stock from a third party,
upon which the Company shall have the right, for a period of sixty (60) days
thereafter, to purchase such Common Stock for the price and upon equivalent
terms as set forth in the bona fide written offer. For purposes of this
Paragraph 10(b), an offer from a third party to purchase all of the Grantee's
Common Stock shall not be deemed to be a "bona fide written offer" until a
deposit equal to ten percent (10%) of the purchase price stated in such offer is
placed in escrow with the Grantee's counsel of choice. If the Company does not
elect to exercise its right of first refusal within such 60-day period, then the
Grantee shall be free to complete the proposed transfer or sale on the terms and
conditions set forth in the bona fide written offer within ninety (90) days
thereafter. If such transfer or sale is not completed within 90 days, the
Grantee shall again be required to give notice of a bona fide written offer
pursuant to this Paragraph 10(b), which notice will again give rise to the
rights of first refusal provided above (for an additional 60 days), prior to
completing

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such transfer. As a condition to the effectiveness of any such transfer, the
transferee shall agree to take such Common Stock subject to all of the terms and
conditions of this Paragraph 10, and shall execute and deliver to the Company an
instrument acknowledging such acceptance, in form and substance acceptable to
the Company.

         (c) Company's Right to Repurchase Common Stock. Upon termination of
employment with the Company for any reason other than a termination by the
Company for "Cause," as such term is defined herein, the Company may, at its
election at any time during the ninety (90) day period commencing on and
following the termination date, reacquire the Grantee's shares at a price equal
to the then current Fair Market Value of such shares. Upon termination of
employment with the Company for "Cause," as such term is defined herein, the
Company may, at its election at any time during the ninety (90) day period
commencing on and following the termination date, reacquire the Grantee's shares
at a price equal to the lesser of (i) the then current Fair Market Value or (ii)
the price the Grantee paid for such shares. The Company shall provide Grantee
written notice of its intent to reacquire the Grantee's shares, and such notice
shall specify the date upon which such purchase and sale shall take place.

         (d) Drag Along Rights Pertaining to Stockholders. If at any time any
stockholder of the Company or group of stockholders owning a majority or more of
the voting capital stock of the Company proposes to enter into any transaction
involving (i) the sale of all or substantially all of the assets of the Company;
(ii) the sale of more than fifty percent (50%) of the outstanding common stock
of the Company in a non-public sale; (iii) any merger, share exchange,
consolidation or other reorganization or business combination of the Company, if
immediately after such transaction either (A) persons who were directors of the
Company immediately prior to such transaction do not constitute at least a
majority of the directors of the surviving entity, or (B) persons who hold a
majority of the voting capital stock of the surviving entity are not persons who
held a majority of the voting capital stock of the Company immediately prior to
such transaction; or (iv) the dissolution or liquidation of the Company, the
Company and/or the transferring stockholders may require the Grantee to
participate in such transaction by giving the Grantee written notice thereof at
least ten (10) days in advance of the date of the transaction or the date that
tender is required, as the case may be. Upon receipt of such notice, the Grantee
shall sell, assign, tender or transfer the same percentage of his shares Stock
as the percentage of the shares of Stock proposed to be sold, assigned, tendered
or transferred by the transferring stockholders collectively, upon the same
terms and conditions applicable to the transferring stockholders and at a value
equal to the value per share the transferring stockholders will receive pursuant
to the terms of the transaction (whether such value is paid in cash or
securities). The provisions of this Paragraph 10(d) shall apply in the event of
the Grantee's death, to the Grantee's executor, personal representative or the
person(s) to whom the Stock shall have been transferred by will or the laws of
descent and distribution, as though such person is the Grantee.

         (e) Stock May be Pledged. Notwithstanding the foregoing, the Common
Stock acquired through the exercise of an Award may be pledged by the Grantee as
security for a loan.

         (f) Stock Not Registered. The shares of Common Stock acquired pursuant
to this Plan, if not then registered under applicable securities laws, shall not
be transferred unless registered under the applicable securities laws or unless
an exemption from the registration requirements is available.

         (g) Restrictions Inoperative. The provisions of this Paragraph 10 shall
become inoperative upon the effective date of the registration with the
Securities and Exchange Commission of the stock subject to the Awards granted
hereunder or acquired through the exercise of options granted hereunder.

                                      -8-
<PAGE>   9

11.      LOCK-UP AGREEMENT MAY BE REQUIRED.

         Each Award granted hereunder shall be subject to the requirement that,
if in connection with an initial public offering of the Common Stock of the
Company subject to the Awards granted hereunder or acquired through the exercise
of Awards granted hereunder, the underwriter or marketing agent for such
offering deems it advisable, he or she shall execute a "lock-up" agreement,
pursuant to which each Grantee shall agree to refrain from selling or
transferring any of the Common Stock acquired pursuant to this Plan for a given
period of time not to exceed six (6) months after the date of the initial public
offering.

12.      MISCELLANEOUS

         (a) Withholding of Taxes. Grantees and holders of Awards shall pay to
the Company or its Affiliate, or make provision satisfactory to the
Administrator for payment of, any taxes required to be withheld in respect of
Awards under the Plan no later than the date of the event creating the tax
liability. The Company or its Affiliate may, to the extent permitted by law,
deduct any such tax obligations from any payment of any kind otherwise due to
the Grantee or holder of an Award. In the event that payment to the Company or
its Affiliate of such tax obligations is made in shares of Common Stock, such
shares shall be valued at Fair Market Value on the applicable date for such
purposes.

         (b) Loans. The Company or its Affiliate may make or guarantee loans to
Grantees to assist Grantees in exercising Awards and satisfying any withholding
tax obligations.

         (c) Transferability. Except as otherwise determined by the
Administrator, and in any event in the case of an incentive stock option or a
stock appreciation right granted with respect to an incentive stock option, no
Award granted under the Plan shall be transferable by a Grantee otherwise than
by will or the laws of descent and distribution. Unless otherwise determined by
the Administrator in accord with the provisions of the immediately preceding
sentence, an Award may be exercised during the lifetime of the Grantee, only by
the Grantee or, during the period the Grantee is under a legal disability, by
the Grantee's guardian or legal representative. Upon any attempt so to transfer,
assign, pledge, hypothecate, or otherwise dispose of the Award, or of any right
or privilege conferred thereby, contrary to the provisions hereof, or upon the
levy of any attachment or similar process upon such Award, right or privilege,
the Award and such rights and privileges shall immediately become null and void.

         (d) Termination, Amendment and Modification of the Plan. The Board of
Directors may at any time terminate or amend the Plan without stockholder
approval; provided, however, that the Board of Directors may condition any
amendment on the approval of stockholders of the Company if such approval is
necessary or advisable with respect to tax, securities or other applicable laws.
The termination or any modification or amendment of the Plan shall not, without
the consent of a Grantee, materially adversely affect his rights under an Award
previously granted to him.

         (e) Non-Guarantee of Employment or Service. Nothing in the Plan or in
any Grant Agreement thereunder shall confer any right on an individual to
continue in the service of the Company or shall interfere in any way with the
right of the Company to terminate such service at any time.

         (f) Compliance with Securities Laws; Listing and Registration. Common
Stock shall not be issued with respect to an Award granted under the Plan unless
the exercise of such Award and the issuance and delivery of stock certificates
for such Common Stock pursuant thereto shall comply with all relevant provisions
of law, including, without limitation, the Securities Act of 1933 and the
Exchange Act, the rules and regulations promulgated thereunder, and the
requirements of any national securities exchange or any listing or quotation
system established by the National Association of Securities Dealers, Inc.
("Nasdaq System") upon which the Common Stock may then be listed or quoted, and
shall be further subject to the approval of counsel for the Company with respect
to such compliance to the extent such approval is sought by the Committee. The
Company may require that a Grantee, as a condition to exercise of an Award, and
as a condition to the delivery of any share certificate, provide to the Company,

                                      -9-
<PAGE>   10

at the time of each such exercise and each such delivery, a written
representation that the shares of Common Stock being acquired shall be acquired
by the Grantee solely for investment and will not be sold or transferred without
registration or the availability of an exemption from registration under the
Securities Act and applicable state securities laws. The stock certificates for
any shares of Common Stock issued pursuant to this Plan may bear a legend
restricting transferability of the shares of Common Stock unless such shares are
registered or an exemption from registration is available under the Securities
Act and applicable state securities laws.

         (g) No Trust or Fund Created. Neither the Plan nor any Award shall
create or be construed to create a trust or separate fund of any kind or a
fiduciary relationship between the Company and a Grantee or any other person. To
the extent that any Grantee or other person acquires a right to receive payments
from the Company pursuant to an Award, such right shall be no greater than the
right of any unsecured general creditor of the Company.

         (h) Governing Law. The validity, construction and effect of the Plan,
of Grant Agreements entered into pursuant to the Plan, and of any rules,
regulations, determinations or decisions made by the Administrator relating to
the Plan or such Grant Agreements, and the rights of any and all persons having
or claiming to have any interest therein or thereunder, shall be determined
exclusively in accordance with applicable federal laws and the laws of the State
of Delaware, without regard to its conflict of laws principles.

         (i) Applications of Funds. The proceeds received by the Company from
the sale of Common Stock pursuant to Awards will be used for general corporate
purposes.

         (j) No Obligation to Exercise Award. The granting of an Award shall
impose no obligation upon the Grantee to exercise such Award.

         (k) Effective Date; Termination Date. The Plan is effective as of the
date on which the Plan was adopted by the Board, subject to approval of the
stockholders within twelve months before or after such date. No Award shall be
granted under the Plan after the close of business on the day immediately
preceding the tenth anniversary of the effective date of the Plan. Subject to
other applicable provisions of the Plan, all Awards made under the Plan prior to
such termination of the Plan shall remain in effect until such Awards have been
satisfied or terminated in accordance with the Plan and the terms of such
Awards.

Date Approved by the Board: January 1, 1998

Date Approved by the Stockholders: January 1, 1998

Date of Amendment reflected herein approved by Board and Stockholders on April
30, 1999

                                      -10-

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