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                                                                    EXHIBIT 99.5

                                    ADDENDUM
                                       TO
                             STOCK OPTION AGREEMENT


                  The following provisions are hereby incorporated into, and are
hereby made a part of, that certain Stock Option Agreement dated (the "Option
Agreement") by and between XeTel Corporation (the "Corporation") and
("Optionee") evidencing the stock option (the "Option") granted on to Optionee
under the terms of the Corporation's 1997 Stock Incentive Plan, and such
provisions shall be effective immediately. All capitalized terms in this
Addendum, to the extent not otherwise defined herein, shall have the meanings
assigned to them in the Option Agreement.

                        LIMITED STOCK APPRECIATION RIGHT

                  1. Optionee is hereby granted a limited stock appreciation
right exercisable upon the following terms and conditions:

                                  (i) Optionee shall have the unconditional
         right (exercisable at any time during the thirty (30)-day period
         immediately following a Hostile Take-Over) to surrender the Option to
         the Corporation, to the extent the Option is at the time exercisable
         for vested shares of Common Stock. In return for the surrendered
         Option, Optionee shall receive a cash distribution from the Corporation
         in an amount equal to the excess of (A) the Take-Over Price of the
         shares of Common Stock which are at the time vested under the
         surrendered Option (or surrendered portion) over (B) the aggregate
         Exercise Price payable for such shares.

                                  (ii) To exercise this limited stock
         appreciation right, Optionee must, during the applicable thirty
         (30)-day exercise period, provide the Corporation with written notice
         of the option surrender in which there is specified the number of
         Option Shares as to which the Option is being surrendered. Such notice
         must be accompanied by the return of Optionee's copy of the Option
         Agreement, together with any written amendments to such Agreement. The
         cash distribution shall be paid to Optionee within five (5) business
         days following such delivery date. The exercise of the limited stock
         appreciation right in accordance with the terms of this Addendum is
         hereby approved by the Plan Administrator in advance of such exercise.
         No further approval of the Plan Administrator shall be required at the
         time of the actual option surrender and cash distribution. Upon receipt
         of such cash distribution, the Option shall be cancelled with respect
         to the Option Shares for which the Option has been surrendered, and
         Optionee shall cease to have any further right to acquire those Option
         Shares under the Option Agreement. The Option shall, however, remain
         outstanding and exercisable for the balance of the Option Shares (if
         any) in accordance with the terms of the





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         Option Agreement, and the Corporation shall issue a new stock option
         agreement (substantially in the same form of the surrendered Option
         Agreement) for those remaining Option Shares.

                                  (iii) In no event may this limited stock
         appreciation right be exercised when there is not a positive spread
         between the Fair Market Value of the Option Shares and the aggregate
         Exercise Price payable for such shares. This limited stock appreciation
         right shall in all events terminate upon the expiration or sooner
         termination of the option term and may not be assigned or transferred
         by Optionee.

                  2. For purposes of this Addendum, the following definitions
shall be in effect:

                                  (i) A HOSTILE TAKE-OVER shall be deemed to
         occur in the event any person or related group of persons (other than
         the Corporation or a person that directly or indirectly controls, is
         controlled by, or is under common control with, the Corporation)
         directly or indirectly acquires beneficial ownership (within the
         meaning of Rule 13d-3 of the Securities Exchange Act of 1934, as
         amended) of securities possessing more than fifty percent (50%) of the
         total combined voting power of the Corporation's outstanding securities
         pursuant to a tender or exchange offer made directly to the
         Corporation's stockholders which the Board does not recommend such
         stockholders to accept.

                                  (ii) The TAKE-OVER PRICE per share shall be
         deemed to be equal to the greater of (A) the Fair Market Value per
         Option Share on the option surrender date or (B) the highest reported
         price per share of Common Stock paid by the tender offeror in effecting
         the Hostile Take-Over. However, if the surrendered Option is designated
         as an Incentive Option in the Grant Notice, then the Take-Over Price
         shall not exceed the clause (A) price per share.





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                  IN WITNESS WHEREOF, XeTel Corporation has caused this Addendum
to be executed by its duly-authorized officer, and Optionee has executed this
Addendum, all as of the Effective Date specified below.


                                         XETEL CORPORATION


                                         By:
                                            -----------------------------------
                                         Title:
                                               --------------------------------

                                         --------------------------------------
                                         OPTIONEE



EFFECTIVE DATE:________________, 199_


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