1
CERTAIN PORTIONS OF THIS DOCUMENT HAVE BEEN OMITTED AND FILED SEPARATELY WITH
THE COMMISSION. CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO THE
OMITTED PORTIONS.


                                                                   EXHIBIT 10.36

                             MANUFACTURING AGREEMENT

THIS PURCHASE AGREEMENT is entered into as of this 13th day of September 1999 by
and between Wellex Corporation, a California corporation, whose principal place
of business is located at 44141 S. Grimmer Blvd., Fremont, CA 94538 (hereinafter
referred to as ("MANUFACTURER") and Verilink Corporation, a Delaware
corporation, having its principal office at 127 Jetplex Circle, Madison, AL
35758 (hereinafter referred to as "PURCHASER").

1.      TERM

        This Agreement shall become effective on the date hereof and shall be in
        effect for two (2) years. The term of this Agreement shall be
        automatically extended for an additional one (1) year period unless
        either party elects to terminate the Agreement by written notice given
        to the other party at least ninety (90) days before the end of the
        initial two (2) year term.

2.      SPECIFICATIONS; QUALITY; Y2K

        (a) All products to be manufactured pursuant to this Agreement
            ("Products") shall be in accordance with PURCHASER's specifications
            and drawings, which have been provided to MANUFACTURER

        (b) All work performed by MANUFACTURER shall be performed in a skillful
            and professional manner and shall be consistent with best commercial
            standards of the industry, including but not limited to, ISO 9002,
            BABT, Production Quality Assurance Approval (PQAA) facility
            certification, and PURCHASER'S "Quality Plan" (see Exhibit D).

        (c) MANUFACTURER represents and warrants that its internal processes and
            that, to the best of its knowledge, the internal processes of its
            suppliers and vendors are Y2K compliant. As used herein, "Y2K
            Compliant" shall mean that neither performance nor functionality is
            affected by dates prior to, during, and after the Year 2000.

        IN PARTICULAR:

        Rule 1. No value for current date will cause any interruption in any
                operation.

        Rule 2. Date-based functionality must behave consistently for dates
                prior to, during and after Year 2000.

        Rule 3. In all interfaces and data storage, the century in any date must
                be specified either explicitly or by unambiguous algorithms or
                inferencing rules.

        Rule 4. Year 2000 must be recognized as a leap year.


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           MANUFACTURER is required to use its best efforts to avoid the
           interruptions of critical operations (including: security systems,
           capital HVAC Systems, power systems, computer systems, phone systems,
           and all company facilities used to support this Agreement.
           MANUFACTURER will provide PURCHASER a written Y2K plan (within one
           (1) month of the signing of this Agreement) addressing as a minimum
           all requirements called out in the Y2K section of this Agreement.
           Status of outstanding items will be reported monthly to PURCHASER
           until resolution is complete. Y2K status reports must include as a
           minimum evidence of facility equipment and services inventory. Y2K
           impacts analysis of said inventory, outstanding issues and
           contingency plans are required.

           In addition, MANUFACTURER shall provide:

        1)  Availability of key personnel beginning December 19, 1999 through
            January 31, 2000.

        2)  List of contact numbers and methods to reach MANUFACTURER's
            personnel during this period. This list should include direct dial
            lines (outside the PBX), cellular numbers, pagers, satellite phone
            numbers, internet based instant messages/chat programs, e-mail
            addresses, and any other means to rapidly communicate between
            MANUFACTURER and PURCHASER during this specified period.

3.      Shipping

        All shipments of Products shall be MANUFACTURER F.O.B PURCHASERS' bonded
        stores area in MANUFACTURER's facility and title shall pass to PURCHASER
        upon such shipment.

4.      Products

        All Products to be manufactured pursuant to this Agreement are listed on
        Exhibit A hereto. Products may be added to or deleted from Exhibit A,
        subject to the terms and conditions of this Agreement.

5.      PRODUCT PAYMENT TERMS

        Payment terms for all Products shall be one percent (1%) ten (10) days,
        net thirty (30) days. All "invoices" shall contain such detail, as may
        be necessary to support its MANUFACTURER's charges.

6.      INVENTORY PURCHASE

        (a) Purchase. MANUFACTURER shall purchase all of PURCHASER's inventory
            (RAW STOCK), including inventory ordered but not yet delivered. That
            inventory shall be transferred to MANUFACTURER on or before October
            29, 1999 and shall be maintained by MANUFACTURER in a controlled
            stock room to insure that either party may validate physical and
            book inventory. MANUFACTURER shall conduct cycle


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            counts in accordance with a schedule mutually agreed upon by
            MANUFACTURER and PURCHASER.

        (b) Payment Terms. MANUFACTURER shall make monthly payments to PURCHASER
            for the inventory purchased pursuant to this Agreement, commencing
            thirty five (35) days from the initial (10-29-99) date that
            inventory is transferred to MANUFACTURER. Each payment shall equal
            the greater of: (i) one sixth (1/6) of PURCHASER's cost of the
            transferred inventory; or (ii) PURCHASER's cost of the inventory
            consumed in the manufacture of Products during thirty (30) day
            period immediately preceding the payment date. However, in no event
            shall the total amount paid under this clause exceed the dollar
            amount of inventory transferred.

        (c) Six Month Review. At the end of six (6) months from the date that
            the inventory is transferred, MANUFACTURER and PURCHASER shall
            evaluate the remaining inventory. Any inventory determined by mutual
            agreement to be obsolete or excess (i.e., not forecasted to be used
            in the manufacture of Products within nine (9) months from the date
            of evaluation) shall be repurchased by PURCHASER at MANUFACTURER's
            cost plus a minimum handling charge agreed to by each party. No
            "Purchased from PURCHASER" inventory will be held longer than one
            (1) year without a Material Carrying Charge agreed to by each party.
            (One and a half % (1.5 %) per month).

        (d) Last Time Buys. PURCHASER will identify all inventory purchased by
            PURCHASER as part of a last time buy. Such inventory will not be
            subject to the buy-back provision of Section 6(c) of this Agreement.
            SEE EXHIBIT C. (to be provided fifteen (15) days from Agreement
            signing.) Exhibit C will identify Part Number, "where used" and
            projected "depletion" date for each " Last Time Buy" item.
            PURCHASER's engineering department will identify replacement
            components for these items prior to usage of the last units.

7.      WIP PURCHASE

        MANUFACTURER shall purchase from PURCHASER at PURCHASER's cost all of
        PURCHASER's non-obsolete work in process ("WIP") included in the
        PURCHASER's initial purchase order and/or forecast. All WIP purchased
        hereunder shall be paid for by PURCHASER within thirty (30) days from
        transfer to MANUFACTURER. The cost for completing and testing of WIP
        shall be determined in accordance with Exhibit B to this Agreement and
        paid by PURCHASER in accordance with Section 5 of this Agreement. No
        partially completed sub-assemblies will be transferred to MANUFACTURER.

8.      CONSIGNMENT OF EQUIPMENT; TRAINING

        PURCHASER will deliver to MANUFACTURER its test equipment and
        manufacturing equipment unique to PURCHASER's Products for use by
        MANUFACTURER in manufacturing and testing Products. PURCHASER will
        retain title to such equipment, which shall be immediately returned to
        PURCHASER upon termination of this Agreement in good working order.
        MANUFACTURER shall maintain and upgrade the equipment as may be required
        to perform its obligations under this Agreement. PURCHASER shall

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        provide at its cost such additional test equipment as may be necessary
        to meet production requirements. Any modifications required to be made
        to equipment provided to MANUFACTURER pursuant to this section shall be
        documented by an Engineering Change Order ("ECO") or (Equivalent
        Manufacturing Control Documents) and shall be at PURCHASER's expense.
        PURCHASER shall provide such training to MANUFACTURER's personnel as may
        be necessary for MANUFACTURER to manufacture and test Products.

9.      PRICING; MATERIAL COSTS

        (a) MANUFACTURER's prices for its services shall be determined in
            accordance with the following formula:

        o  [*]

        o  [*]

        o  [*]

           [*]

            [*] The revenue forecast will be reviewed July 1, 2000, and each
            quarter thereafter, and in the event the revenue does not meet
            expectations, forward adjustments will be made reflecting an
            increase/decrease in Material Margin as agreed to between PURCHASER
            and MANUFACTURER as defined below in Section 9(d); no retroactive
            adjustments will be made. No adjustment will be made under this
            paragraph to the material margin on a quarterly basis if the total
            of the MANUFACTURER's actual revenue year to date plus the
            PURCHASER's forecast is equal to the annual revenue target on an
            annualized basis.

        (b) MANUFACTURER shall review its actual cost information, and provide
            PURCHASER with costed Bills-of-Material on a quarterly basis. After
            the quarterly cost review, MANUFACTURER will revise PURCHASER's
            cost, based on actual cost of raw material, plus agreed to mark-up.
            If MANUFACTURER, at PURCHASER's request, must pay premiums for
            expedited material shipments, MANUFACTURER will review with
            PURCHASER increased pricing prior to implementation, for PURCHASER's
            approval. PURCHASER will be responsible for documented and approved
            premium cost.

        (c) MANUFACTURER shall use its best efforts to obtain the lowest
            possible costs and to obtain flexibility to accommodate PURCHASER's
            schedule changes, based on PURCHASER's forecasts. Purchaser shall
            transfer to MANUFACTURER any volume purchase or unique pricing
            agreements it may have relating to Products.

        (d) Prices are based on the following assumptions:

            1.  Major items are defined as main cards, snaps, shelves, power
                supplies. (See Exhibit B).

            2.  Minor Items are defined as cables, CDs, manuals, & other
                accessory items.


                     [*] Confidential Treatment Requested.


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            3.  [*]

            4.  No shipping preparation labor charge will be incurred for minor
                items.

            5.  [*]

            6.  [*]

            7.  [*]

            8.  Material margin structure defined during a calendar year [each
                one (1) year period beginning 01-01-00].




                 Revenue                                  Material Margin
                                                       
                 [*]                                             [*]
                 [*]                                             [*]
                 [*]                                             [*]
                 [*]                                             [*]



                 At the end of the first one-year period, MANUFACTURER and
                 PURCHASER will review the opportunity to reduce the [*] rate,
                 based on the revenue and future projections.

        (e) No MANUFACTURER's inventory will be held longer than one (1) year
            without a material carrying charge agreed to by each party per
            agreement in Item 6C.

        (f) Non Cancelable Non Returnable material purchased by MANUFACTURER per
            PURCHASER'S Purchase Orders or Letter of Agreement will be the sole
            liability of PURCHASER.

10.     PURCHASE ORDERS; FORECASTS

        (a) All purchases made pursuant to this Agreement shall be made pursuant
            to a Purchase Order, which shall be signed by an authorized
            representative of PURCHASER and shall contain PURCHASER's part
            number, revision level of Products to be shipped, and PURCHASER's
            delivery schedule.

        (b) Every thirty (30) days, PURCHASER shall provide MANUFACTURER with a
            firm Purchase Order for its requirements for the next thirty (30)
            day period and a forecast for the subsequent five (5) month period.
            Within the thirty (30) day period, MANUFACTURER shall provide a
            cycle time of five (5) working days from production release to
            shipment to MANUFACTURER'S bonded stock inventory.

        (c) MANUFACTURER shall use PURCHASER's Purchase Orders and forecasts as
            a basis for purchasing materials required for Products. PURCHASER
            shall be responsible for the costs of any material purchased for
            Products subject to a Purchase Order and forecast not used for the
            manufacture of Products due to cancellations by PURCHASER.
            MANUFACTURER shall use its best efforts to mitigate PURCHASER's
            liability pursuant to this section.

                     [*] Confidential Treatment Requested.

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        (d) PURCHASER shall be entitled to cancel, reschedule, or modify
            Purchase Orders that provide for delivery beyond thirty (30) days,
            provided PURCHASER provides MANUFACTURER with at least fourteen (14)
            days written notice of such cancellation, rescheduling, or
            modification. If such action by PURCHASER represents an acceleration
            of shipment date or increase in quantity of Products, MANUFACTURER
            will use its best efforts to meet PURCHASER's request, subject to
            material availability and capacity, and expedite labor charges.

11.     WARRANTY

        (a) MANUFACTURER warrants that the Product sold hereunder will be free
            from defects in material and workmanship according to IPC 610
            Workmanship Standards and other appropriate quality standards for a
            period of one (1) year from the date of shipment, provided that: (i)
            MANUFACTURER is notified in writing by PURCHASER within thirty (30)
            days after PURCHASER's discovery of any Product failure, or (ii) the
            defective Product is returned to MANUFACTURER no longer than ten
            (10) days following the last day of the warranty period.
            MANUFACTURER shall include serial numbers and/or date stamps, as
            designated by PURCHASER, on each Product to facilitate warranty
            tracking. PURCHASER shall forward defective Products to MANUFACTURER
            freight prepaid, and MANUFACTURER will use its best efforts to
            return the repaired or replaced Products freight prepaid by
            MANUFACTURER to PURCHASER no later than thirty (30) days from the
            date MANUFACTURER received the defective Product. The foregoing
            warranty shall not be valid if the Product or component parts have
            been subjected to abuse, misuse, accident, alteration, neglect,
            unauthorized repair or installation.

        (b) Subject to Exhibit D, the foregoing warranty provisions set forth
            the MANUFACTURER's sole liability and the PURCHASER's exclusive
            remedies for claims (except as to title) based on defects in, or
            failure of, any Product sold hereunder when the claim is based on
            breach of warranty. Upon the expiration of the applicable warranty
            for any Product sold hereunder, all such liability shall terminate.

        (c) The above warranty periods shall not be extended by the repair or
            replacement of Products pursuant to any of the above warranties. The
            above warranties shall apply to PURCHASER, its successors, assigns
            and those who purchase or use Products. PURCHASER shall deal
            directly with MANUFACTURER for returns and repairs.

        (d) EXCEPT AS HEREINABOVE PROVIDED, THE FOREGOING WARRANTIES ARE
            EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED,
            OR STATUTORY, INCLUDING THE IMPLIED WARRANTY OF MERCHANTABILITY OR
            FITNESS FOR A PARTICULAR PURPOSE.

12.     DELIVERY

        (a) Products shall be delivered to PURCHASER in accordance with the
            delivery dates as specified on PURCHASER's Purchase Orders as agreed
            to by MANUFACTURER.


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        (b) Upon learning of any potential delays, MANUFACTURER will immediately
            notify PURCHASER in writing as to the cause and extent of such
            delay. MANUFACTURER and PURCHASER will review the cause and extent
            of such delay, and the Purchase Order Line Item delivery date will
            be modified if Material is determined to be on allocation,
            defective, or incorrect, in a manner that could not be reasonably
            anticipated by MANUFACTURER. If the above circumstances do not
            apply, the delivery schedule in the Purchase Order shall remain in
            effect.

        (c) PURCHASER requires a compliance to agreed upon delivery date greater
            than 95%. Delivery Commitment is defined as a Purchase Order Line
            Item, 100% quantity shipped as acknowledged in Purchase Order
            Delivery Date. MANUFACTURER shall be responsible for any financial
            penalties or additional expenses as a result of MANUFACTURER's
            failure to meet the mutually agreed to delivery commitments.

            If MANUFACTURER is performing below 95% delivery commitment to
            individual line item requirement into PURCHASER's stores area,
            PURCHASER will withhold 3% of the dollar amount of the delinquent
            Purchase Order line item until performance achieves 95% within
            thirty (30) days or a mutually agreed upon recovery period.
            PURCHASER will refund the withheld amount if the performance
            achieves 95% within thirty (30) days or the mutually agreed to
            recovery period, whichever is applicable. If performance does not
            achieve 95% within the applicable period, PURCHASER shall retain all
            amounts withheld.

13.     TERMINATION

        This Agreement may be terminated by either party at any time upon the
        occurrence of any one or more of the following events of default:

        (a) Failure of the other party (i) to perform pursuant to the terms and
            conditions of this Agreement; and (ii) to cure such performance
            deficiency within sixty (60) days after receiving written notice
            thereof given by the aggrieved party;

        (b) The entering into or filing by the other party of a petition,
            arrangement or proceeding seeking an order for relief under the
            bankruptcy laws of the United States, a receivership for any of the
            assets of the other party, a composition with or assignment for the
            benefit of its creditors, a readjustment of debt, or the dissolution
            or liquidation of the other party;

        (c) The insolvency of the other party.

        Upon termination, by MANUFACTURER pursuant to PURCHASER's default,
        PURCHASER shall be liable for any material acquired by MANUFACTURER,
        pursuant to PURCHASER's Purchase Orders, current forecasts and approved
        material Purchase authorizations.

14.     INSPECTION


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        (a) Source Inspection. Upon request from PURCHASER, MANUFACTURER agrees
            to allow PURCHASER to inspect and review the work being performed
            under this Agreement, including materials and supplies being used.
            However, shipments will not be delayed if PURCHASER fails to conduct
            such source inspection. Source inspection does not constitute
            acceptance of Products.

        (b) Approved MANUFACTURERs. In the course of purchasing component parts
            on behalf of PURCHASER, MANUFACTURER must follow PURCHASER's
            Approved Vendors List for all component parts. If MANUFACTURER
            offers alternatives to PURCHASER's AVL, the alternatives must be
            approved in writing by PURCHASER prior to acquisition by
            MANUFACTURER of alternative component parts.

        (c) Bonded Stores Inventory Accuracy. While PURCHASER owns "Bonded
            Stores Inventory", MANUFACTURER is responsible for staffing,
            maintenance, data and inventory accuracy. A formal cycle count
            process and/or physical inventories will be required by
            MANUFACTURER. In the event the MANUFACTURER's inventory accuracy
            defined as book-to-physical units and dollars, falls below 98%
            accuracy, PURCHASER will require MANUFACTURER to complete a physical
            inventory, at MANUFACTURER's expense, until such time inventory
            accuracy is compliant. Failure to meet these requirements will
            require the MANUFACTURER to provide a root cause analysis,
            containment plan, and preventive action plan based on PURCHASER's
            periodic audits.

15.     ENGINEERING CHANGE ORDERS ("ECOs")

        From time to time MANUFACTURER will be asked to implement ECOs. The
        following shall apply to ECOs:

        (a) PURCHASER shall notify MANUFACTURER in writing of a proposed ECO.
            This notification should include the documentation of the change to
            effectively support MANUFACTURER's investigation of the impact of
            this proposal.

        (b) Upon notice of a change, MANUFACTURER will make best effort to
            review all costs impacted within five (5) working days. All cost
            impacts and material availability issues will be mutually reviewed
            and agreed to with PURCHASER prior to implementation.

        (c) Emergency ECOs will be immediately implemented at PURCHASER's
            request. PURCHASER will be liable for costs (material and labor)
            associated with emergency ECO implementation.

16.     CONFIDENTIALITY

        Both parties acknowledge that, by reason of their relationship, they may
        have access to certain information and materials concerning the other's
        business, plans, and products (including, but not limited to,
        information and materials contained in technical data provided to the
        other party) which is confidential and of substantial value to the other
        party, which value would be impaired if such information were used by
        the other


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        party or disclosed to third parties. Both parties agree that they shall
        not use in any way, for their own account or the account of any third
        party, nor disclose to any third party, any such confidential
        information which is revealed to it by the other party without written
        authorization from the other party. Each party will take every
        reasonable precaution to protect the confidentiality of such information
        consistent with the efforts exercised by it with respect to its own
        confidential information. Each party shall advise the other of
        information or materials it considers to be confidential. Upon
        termination of this Agreement, all confidential information shall be
        returned to owners of that confidential information. This provision
        shall survive termination of this Agreement.

17.     INDEMNIFICATION

        Each party shall indemnify and defend the other party against all
        claims, suits, losses, expenses and liabilities for bodily injury,
        personal injury, death and property damage directly or indirectly caused
        by any Products of through the intentional acts or negligence of a party
        or of any person for whose actions such party is legally liable. Both
        parties shall carry and maintain liability insurance coverage to
        satisfactorily cover its obligations under this Agreement.

18.     COMPLIANCE WITH APPLICABLE LAWS

        MANUFACTURER has been, and shall continue to be, in material compliance
        with the provisions of all applicable federal, state and local laws,
        regulations, rules and ordinances applicable to the transactions
        governed by this Agreement.


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19.     FORCE MAJEURE

        In the event that performance by either party of its obligations under
        this Agreement is prevented due to any Act of God, fire, casualty,
        flood, earthquake, war, strike, lockout, epidemic, destruction of
        production facilities, riot, insurrection, or any other similar cause
        beyond the reasonable control of the party invoking this section, and if
        such party shall give prompt written notice to the other party, the time
        for its performance shall be excused, and the time for the performance
        shall be extended for the period of delay or inability to perform due to
        such occurrences.

20.     MISCELLANEOUS

        (a) Severability. In the event that one or more of the provisions, or
            parts thereof, contained in this Agreement shall for any reason be
            held to be invalid, illegal, or unenforceable by a court of
            competent jurisdiction, the same shall not invalidate or otherwise
            affect any other provision in the Agreement, and the Agreement shall
            be construed as if such invalid, illegal or unenforceable provision
            had never been contained herein.

        (b) Entire Agreement; Modification. This Agreement constitutes the
            entire and exclusive statement by PURCHASER and MANUFACTURER of the
            terms of their agreement, notwithstanding any additional or
            different terms that may be contained in any quotation,
            acknowledgment, confirmation, purchase order, invoice or other form
            of PURCHASER or MANUFACTURER. All prior and contemporaneous
            proposals, negotiations, representations and agreements are merged
            into this Agreement. The terms of this Agreement may not be altered,
            modified, superseded, amended or rescinded, and no additional terms
            shall become a part of this Agreement, except pursuant to a writing
            specifically referencing this Agreement and signed by a
            representative of the party against whom enforcement is sought.

        (c) Notice. Unless otherwise specified in this Agreement, all notices
            and other communications permitted or required by the provisions
            hereof shall be in writing and shall be mailed, faxed or delivered
            to the other party at the address set forth below (or at such other
            address as either party shall designate in writing to the other
            party during the term of this Agreement) and shall be effective and
            deemed received: i) if mailed, when actually received; ii) if faxed,
            when actually received; or iii) if personally delivered, when
            delivered. Each notice to MANUFACTURER or PURCHASER shall be
            addressed, until notice of change thereof, as follows:

                      i)     If intended for MANUFACTURER, to:

                             Wellex Corporation
                             44141 S. Grimmer Blvd.
                             Fremont, CA  94538
                             Attn:  Richard L. Fitzgerald


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                     ii)     If intended for PURCHASER, to:

                             Verilink Corporation
                             127 Jetplex Circle
                             Madison, AL  35758
                             Attn:  Thomas E. Abernathy, Jr.

        (d) Assignment. This Agreement shall not be assignable by either party
            without the prior written consent of the other party.

        (e) Waiver. No failure or delay on the part of either party hereto in
            exercising any right or remedy under this Agreement, or any single
            or partial exercise of any such right or remedy, shall operate as a
            waiver thereof. No provision of this Agreement may be waived except
            in writing signed by the party granting such waiver.

        (f) Governing Law; Interpretation. This Agreement shall be governed by
            and construed in accordance with the laws of the State of
            California. Acceptance or acquiescence in a course of performance
            rendered under this Agreement shall not be relevant to determining
            the meaning of the Agreement, even though the accepting or
            acquiescing party had knowledge of the nature of the performance and
            an opportunity for objection. No course of prior dealing between the
            parties and no usage of the trade shall be relevant to supplement or
            explain any terms used in this Agreement.

        (g) Moving Costs. The responsibility for moving costs required to
            implement this Agreement shall be governed by PURCHASER's letter to
            MANUFACTURER, dated July 30, 1999.

        (h) PURCHASER's Personnel. MANUFACTURER will make available working
            space for a mutually agreed upon number of PURCHASER's personnel.

        (i) COOPERATION. PURCHASER will assist MANUFACTURER in identifying
            current or former employees of PURCHASER as potential employees of
            MANUFACTURER and in making such persons available for interview.

21.     RETURN MATERIAL AUTHORIZATION

        If product is found to be defective pursuant to Section 11 of this
        Agreement, PURCHASER will notify MANUFACTURER and MANUFACTURER will
        provide a Return Material Authorization number prior to PURCHASER
        returning the Product. MANUFACTURER will make best effort to provide an
        RMA number within twenty-four (24) hours.


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22.     QUARTERLY REVIEWS

        PURCHASER and MANUFACTURER will jointly work towards process
        improvements in the following areas:

        -  Total Price
        -  Quality
        -  Cycle Time
        -  On-time Delivery
        -  Design improvements on manufacturability, quality and price

        PURCHASER and MANUFACTURER will meet every three (3) months to review
        current worldwide material prices for higher dollar components and
        determine a procurement strategy to achieve best total pricing.

23.     REPAIR CENTER

        MANUFACTURER agrees to provide a repair center for Products subject to
        mutual agreement between MANUFACTURER and PURCHASER. Among the terms to
        be agreed upon are pricing for repair of Products, and refurbishment and
        modification of field equipment. Repair costs will be twenty-two (22%)
        of the actual product cost which includes internal handling and repair
        (excluding transportation). Repair cycle time will be five (5) work days
        on current products, where material is immediately available.

        After completion of first year of this Agreement, both parties will
        review actual cost of repair, including labor, material, and overhead,
        and will agree upon any adjustment of repair cost.

24.     CONTROL OF CONSIGNED INSPECTION; MEASURING & TEST EQUIPMENT

        MANUFACTURER shall track consigned inspection measuring and test
        equipment within the MANUFACTURER's recall system. This includes:

        -  Calibrating equipment,
        -  Maintaining calibration certification records (per ISO 9002),
        -  Supplying the purchaser with a quarterly summary of equipment
           calibration status.



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               ACCEPTED FOR                               ACCEPTED FOR
               Verilink Corporation                       Wellex Corporation


          By:     /s/ Grahmam G. Pattison          By:     /s/ Chern H. Lee

          Print:  Grahmam G. Pattison              Print:  Chern H. Lee

          Title:  President and CEO                Title:  President & CEO

          Date:   September 13, 1999               Date:   September 13, 1999




                                                                         Page 13
Manufacturing Agreement
Wellex and Verilink

   14


                                    EXHIBIT D

                                  QUALITY PLAN

PRODUCT QUALITY LEVELS

1st Pass Final Test Yields.
Subcontractor is required to meet or exceed 1st pass final test yields of 97%
(for each model manufactured) and must show evidence of continuous improvement.
This requirement is based on monthly data collected by MANUFACTURER for each
model manufactured during the month, with a minimum lot size of 25 units for the
month. PURCHASER reserves the right to monitor testing processes and verify 1st
pass final test yields. Analysis of 1st pass test yields must be completed by
MANUFACTURER within ten (10) working days of the previous month end during which
the data was collected.

Failure to meet these requirements will require that the MANUFACTURER provide a
written root cause analysis, containment plan, and preventive action plan within
five (5) working days of capturing the prior month's data.

Field Return Rate
The field return rate, due to any workmanship or related discrepancies,
excluding NTF (No Trouble Found), as defined in IPC 610 (latest revision) must
not exceed 0.2% for each model shipped under this Agreement. Failure to meet
this requirement will result in MANUFACTURER repairing defective product at no
charge to PURCHASER. Failure to meet these requirements will require that the
MANUFACTURER provide a written root cause analysis, containment plan, and
preventive action plan within five (5) working days of capturing the prior
month's data.


                                                                         Page 14
Manufacturing Agreement
Wellex and Verilink