Document:

EMPLOYMENT AGREEMENT

     An agreement is made February 19, 1999, between the company, World
InterNetWorks, a corporation organized and existing under the laws of the
state of Nevada, and Steven Kent Hansen, of Sandy, Utah.

     It is agreed as follows:

     1.  The company will employ Mr. Hansen as the president of the company.
He will act as the president of the company for the term of three years from
the date of the signing of this contract, and thereafter until this agreement
shall be determined by either party giving to the other three months' notice
in writing of such intended determination.

     2.  During the continuance of this agreement the president shall devote
sufficient of his time during the business hours of the company to the
business of the company and shall use his best endeavors to promote the
interests and welfare of the company.  The president shall not either before
or after the termination of this agreement disclose to any person whatever any
information relating to the company or its customers or any trade secrets of
which he shall become possessed while acting as president.

     3.  The president shall exercise and carry out all such powers and duties
necessary to control the general management of the business of the company and
shall have power to appoint and dismiss all personnel as needed and to
establish a new management team, as well as a new board of directors, with Mr.
Hansen appointed as chairman of the board, and to enter into any which he may
consider necessary or conducive to the interests of the company.

     4.  The president shall be entitled by way of remuneration for his
services to a salary of $8,000.00 per month, to be paid monthly.  The company
shall provide a full benefits package, to include medical and dental insurance
for the president and his dependents.  The company shall transfer 800,000
shares of restricted stock to Mr. Hansen within ten days of the signing of
this contract.  All shares and similar plans of the company for the benefit of
its executives.

     5.  Mr. Hansen, in his role as president, shall be entitled to
reimbursement of all reasonable expenses incurred in connection with the
business of the company, and to participate in all pension, profit-sharing and
similar plans of the company for the benefit of its executives.

     6.  The company shall represent and indemnify the president in any action
arising out of the discharge of his duties.  It shall hold Mr. Hansen harmless
for any legal action, creditor claims, class action suits, share holder suits,
or any other cause of action arising in whole or in part on any matter
involving the company or its officers occurring prior to the execution of this
agreement.

     7.  The company has employed the president to recognize the company,
resume operations, and negotiate its obligations.  Mr. Hansen, as president,
is retained as a "turn-around specialist."  The board of directors recognizes
the president's best efforts may be unsuccessful.  It agrees to hold Mr.
Hansen harmless from any action resulting in the closure of the business.

     8.  All amendments to this Agreement shall be in writing and signed by
both parties.  The original written Agreement, and any written and signed
modifications, shall control in any dispute between the parties.  Oral
Modifications are not permitted.

     9.  The waiver by either party hereto of a breach of any provision of
this Agreement shall not operate or be construed as a waiver of any subsequent
breach of the same, or any other provision of this agreement.

     10. Whenever possible, each provision of this Agreement will be
interpreted in such a manner as to be effective and valid under applicable
law, but if any provision of this Agreement is held to be invalid, illegal, or
unenforceable in any respect under any applicable law or rule in any
jurisdiction, such invalidity, illegality or unenforceability will not effect
any other provision or any other jurisdiction, but this Agreement will be
reformed, construed, and enforced in such jurisdiction as if such invalid,
illegal or unenforceable provision had never been contained herein.

     11. This Agreement shall be governed by and construed in accordance with
the laws of the State of Utah without giving effect to any choice of law or
conflict of law provision or rule (whether of the State of Utah or any other
jurisdiction) that would cause the application of the laws of any jurisdiction
other than the State of Utah.

     12. The Agreement, and those documents expressly referred to herein and
other documents of even date signed by the parties, constitute the complete
agreement and understanding among the parties and supercede any prior
understandings, agreements or representations by or among the parties, written
or oral, which may have related to the subject matter hereof in any way.

     13. Any dispute arising between the parties regarding this Agreement,
which the parties are not able to resolve by mutual consent, shall be
submitted to binding arbitration conducted in accordance with the rules of the
American Arbitration Association.  Each party shall bear its own costs.

     INTENDING TO BE LEGALLY BOUND, the parties -hereto have executed this
Agreement as of the date first written above.

/s/ Steven K. Hansen                         /s/ Ronald A. Nilsson
----------------------------                 ---------------------------
Steven K. Hansen                             Ronald A. Nilsson
                                             CEO, World Internet Works, Inc.
                                             Chairman of the Board

Original agreement forwarded to              Fax copy to R. Spencer Robinson
Mr. Hansen at 1379 East Indian               Attorney at Law
Ridge Circle, Sandy, UT 84092                801-576-9551This agreement for stock is between Gary S. Winterton, and WI Works.  This
stock compensation is for services rendered, as a board member, and consultant
to WI Works.  Compensation is as follows:

Compensation

1.  100,000 shares of restricted common stock with an option price of .40 per
share vested immediately and dated March of 1999 as an amendment to our
original agreement dated On March 22, 1999.

2.  50,000 shares of restricted common stock with an option price set by the
closing price of the stock on July 23, 1999 or .75.  These shares are fully
vested, and dated March of 1999.

3.  Your Board Compensation will remain as outlined with the exception of
considering an adjustment to the Strike price.  10,000 Shares vested
immediately, and dated March of 1999.  Adjusted strike price is set at .40 per
share.

4.  All shares are once vested March 1, 1999 will be registered to Gary S.
Winterton.  These shares will be registered for trading upon request from Gary
S. Winterton.

This agreement is grandfathered, and will survive any and all future
agreements between WI Works and any third party or other entity or
individuals.

Gary, You have been instrumental in our progress to date and I am grateful.
This compensation plan provides you with more shares than you had detailed in
your request.  I look forward to your continued involvement in the future of
World InterNetWorks as we begin to market our new business model.

Gary S. Winterton                          Steve Hansen
                                           CEO WI Works

/s/ Gary S. Winterton 8/12/99              /s/ Steve Hansen 8/12/99
-----------------------------              --------------------------

Notary

/s/ Kimberly Harris
-----------------------------
Kimberly HarrisINCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE ON May 26, 1998.

*Certificate No.  **                                           **   Shares   **

                           Hartland Investments Inc.

                     Secretary of State File No. _____________

                                  COMMON STOCK

This certifies that __________________is the owner(s) of ____________ fully paid
and non-assessable shares of Hartland Investments Inc., a Delaware  corporation,
transferable  only on the books of the  Corporation  by the  holder  hereof,  in
person or by duly  authorized  Attorney,  upon  surrender  of this  Certificate,
properly endorsed.

In Witness Whereof, the Corporation has caused this Certificate of be issued and
signed by its duly appointed officers on ________.

_______________________________                  _______________________________
President                                        Secretary

                           $0.01 PAR VALUE PER SHARE<PAGE>

                                                                    EXHIBIT 4.12

THIS WARRANT AND THE SECURITIES ISSUABLE UPON EXERCISE OF THIS WARRANT HAVE NOT
BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), OR
UNDER THE SECURITIES LAWS OF ANY STATES. THESE SECURITIES ARE SUBJECT TO
RESTRICTIONS ON TRANSFERABILITY AND RESALE AND MAY NOT BE TRANSFERRED OR RESOLD
EXCEPT AS PERMITTED UNDER THE ACT AND APPLICABLE STATE SECURITIES LAWS, PURSUANT
TO REGISTRATION OR EXEMPTION THEREFROM. INVESTORS SHOULD BE AWARE THAT THEY MAY
BE REQUIRED TO BEAR THE FINANCIAL RISKS OF THIS INVESTMENT FOR AN INDEFINITE
PERIOD OF TIME. THE ISSUER OF THESE SECURITIES MAY REQUIRE AN OPINION OF COUNSEL
IN FORM AND SUBSTANCE SATISFACTORY TO THE ISSUER TO THE EFFECT THAT ANY PROPOSED
TRANSFER OR RESALE IS IN COMPLIANCE WITH THE ACT AND ANY APPLICABLE STATE
SECURITIES LAWS.

                                                           March 9, 2000

                        WARRANT TO PURCHASE COMMON STOCK

                                       OF

                         OPTICAL NETWORKS, INCORPORATED

         THIS CERTIFIES THAT for good and valuable consideration, receipt of
which is hereby acknowledged, Fenwick & West LLP (or its permitted and
registered assigns) ("Registered Holder"), is entitled, subject to the terms and
conditions of this Warrant, to purchase from Optical Networks, Incorporated, a
California corporation (the "Company") at any time beginning on March 9, 2000
and ending on 5:00 p.m. Pacific Time on March 9, 2004 (the "Expiration Date"),
(a) up to 200,000 shares of Warrant Stock (as defined below) at a price per
share equal to the Warrant Price (as defined below), upon surrender of this
Warrant at the principal office of the Company, together with a duly executed
subscription form in the form attached hereto as Exhibit 1 and simultaneous
                                                 ---------
payment of the full Warrant Price for the shares of Warrant Stock so purchased
in either (i) lawful money of the United States, or (ii) for cancellation of
indebtedness owed by the Company to the Registered Holder; or (b) up to that
number of shares of Warrant Stock determined in accordance with the provisions
of Section 3 below relating to cashless net exercises, upon surrender of this
Warrant at the principal office of the Company, together with a duly executed
cashless net issue election subscription form in the form attached hereto as
Exhibit 2.  The Warrant Price and the number and character of shares of Warrant
---------
Stock purchasable under this Warrant are subject to adjustment as provided
herein.
<PAGE>

    1.   Certain Definitions.  The following definitions shall apply for
         -------------------
purposes of this Warrant:

    (a) "Warrant Price"  shall mean a per share price of Fifteen Dollars
($15.00).

    (b) "Warrant" shall mean this Warrant and any warrant(s) delivered in
substitution or exchange therefor, as provided herein.

    (c) "Warrant Stock" shall mean the Common Stock of the Company.

    2.   Exercise.  Subject to compliance with all applicable securities laws,
         --------
this Warrant may be exercised at any time or from time to time on or before the
Expiration Date, for all, or a portion, of the 200,000 shares of Warrant Stock
issuable upon exercise of this Warrant (as such number of shares may be adjusted
pursuant to the provisions set forth below), by surrendering this Warrant at the
principal office of the Company at 166 Baypointe Parkway, San Jose, California
95134-1621, with the subscription form attached hereto as Exhibit 1 duly
                                                          ---------
executed by the Registered Holder, and payment, in cash and/or cancellation of
bona fide indebtedness of the Company to the Registered Holder, of an amount
equal to the product obtained by multiplying (i) the number of shares of Warrant
Stock to be purchased by the Registered Holder by (ii) the Warrant Price or
adjusted Warrant Price therefor, if applicable, as determined in accordance with
the terms hereof.  This Warrant shall be deemed to have been exercised
immediately prior to the close of business on the date of its surrender for
exercise as provided above, and the person entitled to receive the shares of
Warrant Stock issuable upon such exercise shall be treated for all purposes as
the holder of record of such shares as of the close of business on such date.
As soon as practicable on or after such date, the Company shall issue and
deliver to the person or persons entitled to receive the same a certificate or
certificates for the number of whole shares of Warrant Stock issuable upon such
exercise, together with cash in lieu of any fraction of a share equal to such
fraction of the current fair market value of one whole share of Warrant Stock as
of the date of exercise, as determined in good faith by the Company's Board of
Directors.  No fractional shares may be issued upon any exercise of this
Warrant, and any fractions shall be rounded down to the nearest whole number of
shares.

     3.  Net Issue Election.  Notwithstanding the provisions of Section 2 and
         ------------------
subject to compliance with all applicable securities laws, the Registered Holder
may, in lieu of exercising this Warrant in exchange for payment of cash or
cancellation of bona fide indebtedness, elect to receive instead, without the
payment by the Registered Holder of any additional consideration and upon the
delivery of a Net Issue Election Notice annexed hereto as Exhibit 2 duly
                                                          ---------
executed, at the principal office of the Company, that number of shares of
Warrant Stock equal to X as is computed using the following formula:

                                   Y(A - B)
                                 X = --------
                                       A

         where:

         X =  the number of shares of Warrant Stock to be issued to the
              Registered Holder pursuant to this Section 3.

                                      -2-
<PAGE>

          Y =  the full number of shares of Warrant Stock that would have been
               issuable upon exercise of this Warrant pursuant to Section 2 as
               at the time the net issue election is made pursuant to this
               Section 3.

          A =  the Fair Market Value (as defined below) of one share of Warrant
               Stock, as at the time the net issue election is made pursuant to
               this Section 3.

          B =  the Warrant Price in effect under this Warrant at the time the
               net issue election is made pursuant to this Section 3.

     As used herein, the term "Fair Market Value" of Warrant Stock as of a
particular date (the "Determination Date") shall mean (i) if the Warrant Stock
is traded on an exchange or is quoted on the National Association of Securities
Dealers, Inc. automated quotation ("NASDAQ") National Market System, the average
of the closing or last sale price, respectively, of a share of Warrant Stock as
reported for the five (5) trading days immediately preceding the Determination
Date; (ii) if the Warrant Stock is not traded on an exchange or on the NASDAQ
National Market System but are traded in the over-the-counter market, then the
average of the mean of the closing bid and asked prices for a share of Warrant
Stock reported for the five (5) trading days immediately preceding the
Determination Date; and (iii) if the Warrant Stock is not publicly traded, then
as determined in good faith by the Company's Board of Directors upon a review of
relevant factors.

     4.  Fully Paid Shares.  All shares of Warrant Stock issued upon the
         -----------------
exercise of this Warrant shall be validly issued, fully paid and nonassessable.

     5.  Representations and Warranties and Certain Agreements of Registered
         -------------------------------------------------------------------
Holder.  Registered Holder hereby represents and warrants to, and agrees with,
------
the Company, that:

         5.1  Purchase for Own Account.  Each of this Warrant and the Warrant
              ------------------------
Stock (collectively, the "Securities") will be acquired for investment for
Registered Holder's own account, not as a nominee or agent, and not with a view
to the public resale or distribution thereof within the meaning of the 1933 Act,
and Registered Holder has no present intention of selling, granting any
participation in, or otherwise distributing the same.

         5.2  Disclosure of Information.  Registered Holder believes that it has
              -------------------------
received or has had full access to all the information it considers necessary or
appropriate to make an informed investment decision with respect to the
Securities.  Registered Holder further has had an opportunity to ask questions
and receive answers from the Company regarding the terms and conditions of the
offering of the Securities and to obtain additional information (to the extent
the Company possessed such information or could acquire it without unreasonable
effort or expense) necessary to verify any information furnished to Registered
Holder or to which Registered Holder had access.

         5.3  Investment Experience.  Registered Holder understands that the
              ---------------------
purchase of the Securities involves substantial risk.  Registered Holder (i) has
experience as an investor in securities of companies in the development stage
and acknowledges that Registered Holder is

                                      -3-
<PAGE>

able to fend for itself, can bear the economic risk of Registered Holder's
investment in the Securities and has such knowledge and experience in financial
or business matters that Registered Holder is capable of evaluating the merits
and risks of this investment in the Securities and protecting its own interests
in connection with this investment and/or (ii) has a preexisting personal or
business relationship with the Company and certain of its officers, directors or
controlling persons of a nature and duration that enables Registered Holder to
be aware of the character, business acumen and financial circumstances of such
persons.

         5.4  Accredited Investor Status.  Registered Holder is an "accredited
              --------------------------
investor" within the meaning of Regulation D promulgated under the 1933 Act.

         5.5  Restricted Securities.  Registered Holder understands that the
              ---------------------
Securities are characterized as "restricted securities" under the 1933 Act and
Rule 144 promulgated thereunder inasmuch as they are being acquired from the
Company in a transaction not involving a public offering, and that under the
1933 Act and applicable regulations thereunder such securities may be resold
without registration under the 1933 Act only in certain limited circumstances.
In this connection, Registered Holder represents that Registered Holder is
familiar with Rule 144 of the U.S. Securities and Exchange Commission, as
presently in effect, and understands the resale limitations imposed thereby and
by the 1933 Act.

         5.6  No Solicitation.  At no time was the Registered Holder presented
              ---------------
with or solicited by any publicly issued or circulated newspaper, mail, radio,
television or other form of general advertising or solicitation in connection
with the offer, sale and purchase of the Securities.

          5.7  Limitations on Disposition.  Registered Holder agrees not to make
               --------------------------
any disposition of all or any portion of the Securities unless and until:

               (a) there is then in effect a registration statement under the
1933 Act covering such proposed disposition and such disposition is made in
accordance with such registration statement; or

               (b) Registered Holder shall have notified the Company of the
proposed disposition, and shall have furnished the Company with a statement of
the circumstances surrounding the proposed disposition, and, at the expense of
Registered Holder or its transferee, with an opinion of counsel, reasonably
satisfactory to the Company, that such disposition will not require registration
of such securities under the 1933 Act.

Notwithstanding the provisions of paragraphs (a) and (b) above, no such
registration statement or opinion of counsel shall be required:  (i) for any
transfer in compliance with Rule 144 or Rule 144A; (ii) for any transfer by a
Registered Holder that is a partnership or a corporation to (A) a partner of
such partnership or shareholder of such corporation, (B) a retired partner of
such partnership who retires after the date hereof, (C) the estate of any such
partner or shareholder; or (iii) for the transfer by gift, will or intestate
succession by any Registered Holder to his or her spouse or lineal descendants
or ancestors or any trust for any of the foregoing; provided that in
                                                    --------

                                      -4-
<PAGE>

each of the foregoing cases the transferee agrees in writing to be subject to
the terms of this Section 5.7 to the same extent as if the transferee were an
original Registered Holder hereunder.

         5.8  Legends.  Registered Holder understands and agrees that the
              -------
certificates evidencing the Securities will bear legends substantially similar
to those set forth below in addition to any other legend that may be required by
applicable law:

              (a) THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED
UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), OR UNDER THE
SECURITIES LAWS OF CERTAIN STATES. THESE SECURITIES ARE SUBJECT TO RESTRICTIONS
ON TRANSFERABILITY AND RESALE AND MAY NOT BE TRANSFERRED OR RESOLD EXCEPT AS
PERMITTED UNDER THE ACT AND THE APPLICABLE STATE SECURITIES LAWS, PURSUANT TO
REGISTRATION OR EXEMPTION THEREFROM. INVESTORS SHOULD BE AWARE THAT THEY MAY BE
REQUIRED TO BEAR THE FINANCIAL RISKS OF THIS INVESTMENT FOR AN INDEFINITE PERIOD
OF TIME. THE ISSUER OF THESE SECURITIES MAY REQUIRE AN OPINION OF COUNSEL IN
FORM AND SUBSTANCE SATISFACTORY TO THE ISSUER TO THE EFFECT THAT ANY PROPOSED
TRANSFER OR RESALE IS IN COMPLIANCE WITH THE ACT AND ANY APPLICABLE STATE
SECURITIES LAWS.

             (b) Any legend required by the laws of the State of California,
including any legend required by the California Department of Corporations and
Sections 417 and 418 of the California Corporations Code or any other state
securities laws.

The legend set forth in (a) above shall be removed by the Company from any
certificate evidencing the Securities upon delivery to the Company of an opinion
of counsel, reasonably satisfactory to the Company, that a registration
statement under the 1933 Act is at that time in effect with respect to the
legended security or that such security can be freely transferred in a public
sale (other than pursuant to Rule 144 or Rule 145 under the 1933 Act) without
such a registration statement being in effect and that such transfer will not
jeopardize the exemption or exemptions from registration pursuant to which the
Company issued the Securities.

     6.  Adjustment of Warrant Price and Number of Shares.  The number and
         ------------------------------------------------
character of shares of Warrant Stock issuable upon exercise of this Warrant (or
any shares of stock or other securities or property at the time receivable or
issuable upon exercise of this Warrant) and the Warrant Price therefor, are
subject to adjustment as follows:

         6.1  Adjustment for Stock Splits, Stock Dividends, Recapitalizations,
              ----------------------------------------------------------------
etc.  The Warrant Price and the number of shares of Warrant Stock issuable upon
----
exercise of this Warrant shall be proportionally adjusted to the extent
necessary to reflect any stock dividend, stock split, reverse stock split,
combination of shares, reclassification, recapitalization or other similar event
affecting the number of outstanding shares of Warrant Stock that occurs after
the date of this Warrant.

         6.2  Adjustment for Other Dividends and Distributions.  In case the
              ------------------------------------------------
Company shall, after the date of this Warrant, make or issue, or shall fix a
record date for the determination of eligible holders entitled to receive, a
dividend or other distribution payable with respect to the

                                      -5-
<PAGE>

Warrant Stock payable in securities of the Company (other than issuances with
respect to which adjustment is made under Section 6.1), then, and in each such
case, the Registered Holder of this Warrant, upon exercise of this Warrant at
any time after the consummation, effective date or record date of such event,
shall receive, in addition to the shares of Warrant Stock issuable upon such
exercise prior to such date, the securities or such other assets of the Company
to which such Registered Holder would have been entitled upon such date if such
Registered Holder had exercised this Warrant immediately prior thereto (all
subject to further adjustment as provided in this Warrant).

         6.3  Adjustment for Reorganization, Consolidation, Merger.  In case of
              ----------------------------------------------------
any reorganization of the Company (or of any other corporation, the stock or
other securities of which are at the time receivable on the exercise of this
Warrant), after the date of this Warrant, or in case, after such date, the
Company (or any such corporation) shall consolidate with or merge into another
corporation or convey all or substantially all of its assets to another
corporation, then, and in each such case, the Registered Holder of this Warrant,
upon the exercise of this Warrant (as provided in Sections 2 or 3), at any time
after the consummation of such reorganization, consolidation, merger, or
conveyance, shall be entitled to receive, in lieu of the stock or other
securities and property receivable upon the exercise of this Warrant prior to
such consummation, the stock or other securities or property to which such
Registered Holder would have been entitled upon the consummation of such
reorganization, consolidation, merger or conveyance if such Registered Holder
had exercised this Warrant immediately prior thereto, all subject to further
adjustment as provided in this Section 6, and the successor or purchasing
corporation in such reorganization, consolidation, merger or conveyance (if
other than the Company) shall duly execute and deliver to the Registered Holder
a supplement hereto acknowledging such corporation's obligations under this
Warrant; and in each such case, the terms of this Warrant shall be applicable to
the shares of stock or other securities or property receivable upon the exercise
of this Warrant after the consummation of such reorganization, consolidation,
merger or conveyance.

     7.  Market Stand-Off; Piggyback Registrations.  The Company and the
         -----------------------------------------
Registered Holder agree that the Registered Holder and the shares of Warrant
Stock issuable hereunder shall (i) be subject to the terms of the Lock-Up
provisions contained in Section 2.7 of the Company's Investor Rights Agreement
dated December 22, 1999 (as may be amended from time to time, the "Investor
Rights Agreement"), and (ii) shall enjoy "piggyback" registration rights subject
to the terms of the Investor Rights Agreement.

     8.  No Impairment.  The Company will not, by amendment of its Articles of
         -------------
Incorporation or Bylaws, or through reorganization, consolidation, merger,
dissolution, issue or sale of securities, sale or assets or any other voluntary
action, willfully avoid or seek to avoid the observance or performance of any of
the terms of this Warrant, but will at all times in good faith assist in the
carrying out of all such terms and in the taking of all such action as may be
necessary or appropriate in order to protect the rights of the Registered Holder
under this Warrant against wrongful impairment.

     9.  Certificate as to Adjustments.  In each case of any adjustment in
         -----------------------------
either the Warrant Price or in the number of shares of Warrant Stock, or other
stock, securities or property

                                      -6-
<PAGE>

receivable upon the exercise of this Warrant, the Chief Financial Officer of the
Company shall compute such adjustment in accordance with the terms of this
Warrant and prepare a certificate setting forth such adjustment and showing in
detail the facts upon which such adjustment is based, including a statement of
the adjusted Warrant Price. The Company will cause copies of such certificate to
be mailed (by first class mail, postage prepaid) to the Registered Holder.

     10.  Loss or Mutilation.  Upon receipt by the Company of evidence
          ------------------
reasonably satisfactory to it of the ownership, and the loss, theft, destruction
or mutilation, of this Warrant, and of indemnity reasonably satisfactory to it,
and (in the case of mutilation) upon surrender and cancellation of this Warrant,
the Company will execute and deliver in lieu thereof a new Warrant of like
tenor.

     11.  No Rights or Liabilities as Shareholder.  This Warrant does not by
          ---------------------------------------
itself entitle the Registered Holder to any voting rights or other rights as a
shareholder of the Company.  In the absence of affirmative action by Registered
Holder to purchase Warrant Stock by exercise of this Warrant, no provisions of
this Warrant, and no enumeration herein of the rights or privileges of the
Registered Holder shall cause such Registered Holder to be a shareholder of the
Company for any purpose.

     12.  Amendment; Waiver.  Any term of this Warrant may be amended, and the
          -----------------
observance of any term of this Warrant may be waived (either generally or in a
particular instance and either retroactively or prospectively) with the written
consent of the Company and the Registered Holder.

     13.  Notices.  All notices and other communications from the Company to the
          -------
Registered Holder shall be deemed given when mailed by first-class registered or
certified mail, postage prepaid, to the address furnished to the Company in
writing by the last Registered Holder who shall have furnished an address to the
Company in writing.

     14.  Law Governing.  This Warrant shall be construed and enforced in
          -------------
accordance with, and governed by, the internal laws of the State of California,
excluding that body of law applicable to conflicts of laws.

     15.  Terms Binding.  By acceptance of this Warrant, the Registered Holder
          -------------
of this Warrant (and each subsequent assignee, transferee or Registered Holder
of this Warrant) accepts and agrees to be bound by all the terms and conditions
of this Warrant.

                                      -7-
<PAGE>

     16.  Counterparts. This Warrant may be executed in two or more
          ------------
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.

OPTICAL NETWORKS, INCORPORATED      ACKNOWLEDGED AND ACCEPTED
                                    BY REGISTERED HOLDER:

                                    FENWICK & WEST LLP

By: /s/ Terrence Schmid               By: /s/ Horace L. Nash
   --------------------------            ------------------------
Name: TERRENCE SCHMID                 Name: HORACE L. NASH
     ------------------------              ----------------------
Title:  CFO                           Title: PARTNER
      -----------------------               ---------------------

    [Signature page to Warrant to Purchase Common Stock of Optical Networks,
                                 Incorporated]

                                      -8-
<PAGE>

                                   EXHIBIT 1
                                   ---------

                              FORM OF SUBSCRIPTION
                              --------------------

                  (To be signed only upon exercise of Warrant)

To:  Optical Networks, Incorporated

         (1) The undersigned hereby elects to purchase ________________ shares
of Common Stock of Optical Networks, Incorporated, pursuant to the terms of the
attached Warrant, and tenders herewith payment of the purchase price for such
shares in full.

         (2) In exercising this Warrant, the undersigned hereby confirms and
acknowledges that the representations and warranties of the undersigned set
forth in Section 5 of the Warrant are true and correct as of this date.

________________________________
(Name)

________________________________    ____________________________________
(Date)                              (Signature of Registered Holder)
<PAGE>

                                   EXHIBIT 2
                                   ---------

                           Net Issue Election Notice

To: Optical Networks, Incorporated

         (1) The undersigned hereby elects under Section 3 to purchase
_____________ shares of Common Stock pursuant to the terms of the attached
Warrant by surrendering the right to purchase _______________ shares of Common
Stock pursuant to this Warrant.

         (2) In exercising this Warrant, the undersigned hereby confirms and
acknowledges that the representations and warranties of the undersigned set
forth in Section 5 of the Warrant are true and correct as of this date.

________________________________
(Name)

________________________________    ____________________________________
(Date)                              (Signature of Registered Holder)

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