Document:

<PAGE>

                                                                    Exhibit 10.8

                  SECOND AMENDMENT TO STOCK PURCHASE AGREEMENT

           THIS SECOND AMENDMENT TO STOCK PURCHASE AGREEMENT (this "Amendment")
is entered into by and among Telenetics Corporation, a California corporation
("Telenetics"), John D. McLean, an individual ("McLean"), William C. Saunders,
an individual ("Saunders") and Terry S. Parker, an individual ("Parker," and
together with McLean and Saunders, the "Sellers"), with reference to that
certain Stock Purchase Agreement dated January 7, 2000 (the "Purchase
Agreement") by and among Telenetics and the Sellers and Edward L. Didion, an
individual ("Didion") and that certain First Amendment to Stock Purchase
Agreement dated as of May 31, 2000 by and among Telenetics, Sellers and Didion
(the "First Amendment").

                                 R E C I T A L S
                                 ---------------

           A. Certain disputes have arisen between Telenetics, on the one hand,
and Sellers and Didion, on the other, in connection with the Purchase Agreement,
as amended by the First Amendment.

           B. As a result of such disputes, Telenetics filed an action in the
United States District Court, Central District of California, Southern Division
(Case No. SA01-987-AHS (ANX)) (the "Action"), against Sellers and Didion.

           C. Telenetics and Sellers have agreed to resolve such disputes
pursuant to the terms and conditions of that certain Settlement Agreement and
Mutual Release (the "Settlement Agreement"), which Settlement Agreement
provides, among other things, that Telenetics and Sellers enter into this
Agreement.

           D. In contemplation of executing the Settlement Agreement, in
February 2002, Telenetics filed a request for and obtained a dismissal without
prejudice in the Action.

           NOW, THEREFORE, in consideration of the premises and mutual
covenants, considerations and conditions set forth herein and other good and
valuable consideration, the receipt and sufficiency of which is hereby
acknowledged, the parties mutually agree as follows:

           1. DEFINITIONS. Capitalized terms not otherwise defined in this
Amendment shall have their respective meanings contained in the Purchase
Agreement.

           2. EFFECT OF PRIOR EARN-OUT CONDITION. Telenetics and Sellers hereby
acknowledge and agree that any and all actions taken by Telenetics between the
date of the Purchase Agreement and the date of this Amendment relating to the
issuance of any capital stock of Telenetics did not result in the application of
Section 1.3(c) of the Purchase Agreement (as such was in effect prior to the
deletion of such section pursuant to Section 3 of this Amendment) and, as such,
Sellers are not entitled to receive any Additional Stock as a result of any such
issuances of capital stock.

           3. AMENDMENT OF EARN-OUT CONDITION. Section 1.3(c) of the Purchase
Agreement is hereby deleted in its entirety.

<PAGE>

           4. MISCELLANEOUS.

                      (a) All other terms and provisions of the Purchase
Agreement not expressly modified by this Amendment shall remain in full force
and effect.

                      (b) This Amendment shall constitute and contain the
complete understanding and agreement of the parties hereto, and cancel and
supersede any and all prior negotiations, correspondence, understandings and
agreements, whether written or oral, between the parties with respect to the
subject matter hereof.

           IN WITNESS WHEREOF, the parties have executed this Amendment to be
effective the latter of (a) the effectiveness of the Settlement Agreement and
(b) the date upon which this Amendment has been executed by all parties to this
Amendment.

Dated:  SEPT 27, 2002                  TELENETICS CORPORATION

                                       By: /S/ David Stone
                                           -------------------------------------
                                           David Stone,
                                           President and Chief Financial Officer

                                       /S/ JOHN D. MCLEAN
Dated:  SEPT 27, 2002                  -----------------------------------------
                                       JOHN D. MCLEAN

                                       /S/ WILLIAM C. SAUNDERS
Dated:  SEPT 27, 2002                  -----------------------------------------
                                       WILLIAM C. SAUNDERS

                                       /S/ TERRY S. PARKER
Dated:  SEPT 27, 2002                  -----------------------------------------
                                       TERRY S. PARKER

Dated:  SEPT 27, 2002                  SAUNDERS & PARKER, INC.

                                       By:/S/ WILLIAM C. SAUNDERS
                                          --------------------------------------
                                               Its: CO-PRES
                                                    ----------------------------

                                       2<PAGE>

                                                                    Exhibit 10.9

                                 PROMISSORY NOTE

$24,723.42                                               Lake Forest, California
                                                             September 27, 2002

           For value received, TELENETICS CORPORATION, a California corporation
(herein, together with its successors and assigns, collectively called "Maker"),
promises to pay to the order of SAUNDERS & PARKER, INC., a Texas corporation
(herein, together with its successors and assigns who become holders of this
Note, called "Holder") at its offices set forth on the signature page hereof, or
such other place as Holder may designate in writing, the principal sum of
Twenty-Four Thousand Seven Hundred Twenty-Three and Forty-Two Hundredths Dollars
($24,723.42) together with interest on the unpaid principal amount from time to
time owing hereunder, commencing on the above date, at the rate of eight percent
(8%) per annum, simple interest. Interest and principal on this Note shall be
payable at maturity on February 1, 2003.

           This Note may be prepaid in whole or in part at any time without
penalty or bonus.

           Both principal and interest shall be paid by Maker in lawful money of
the United States of America in the form of a cashier's or certified check. The
rights and remedies of Holder, as provided in this Note shall be cumulative and
concurrent, and may be pursued singularly, successively or together. This Note
has been executed under and shall be construed and enforced in accordance with
the laws of the State of California from time to time in effect, except to the
extent that the United States federal laws preempt or otherwise control the laws
of the State of California, including without limitation the extent to which the
United States federal law permits Holder to contract for, charge or receive a
greater amount of interest than do the laws of the State of California.

           Time is of the essence of this Note. The entire unpaid principal
balance of this Note, and all accrued and unpaid interest, may be accelerated
and thereby become due and payable, at the option of Holder, upon giving notice
thereof to Maker in any of the following events:

           (1)       Maker shall default in the payment of any part of the
                     principal or accrued and unpaid interest on this Note for
                     more than ten (10) days after it shall become due and
                     payable;

           (2)       Maker shall make an assignment for the benefit of
                     creditors, or shall file a voluntary petition for
                     bankruptcy, or shall seek or consent to or acquiesce in the
                     appointment of any trustee, receiver or liquidator of
                     Maker's assets, or of any substantial part of the assets of
                     Maker; or

           (3)       Within thirty (30) days after the commencement of any
                     proceeding against the Maker seeking liquidation of Maker's
                     assets or similar relief under any present or future
                     statute, law or regulation, such proceeding shall not have
                     been dismissed or, within thirty (30) days after the
                     appointment without the consent or acquiescence of Maker of
                     any trustee, receiver or liquidator of Maker's assets or of
                     any substantial part of the assets of Maker, such
                     appointment shall not have been vacated.

<PAGE>

           Maker hereby agrees, subject only to any limitation imposed by
applicable law, to pay all expenses, including reasonable attorneys' fees and
legal expenses, incurred by Holder in endeavoring to collect any amounts payable
hereunder which are not paid when due, whether by declaration or otherwise.
Maker agrees that any delay on the part of Holder in exercising any rights
hereunder will not operate as a waiver of such rights. Holder shall not by any
act, delay, omission or otherwise be deemed to have waived any of its rights or
remedies, and neither this Note nor any term hereof may be waived, amended,
discharged, modified, changed, or terminated orally, nor shall any waiver of any
provision hereof be effective except by an instrument in writing signed by Maker
and Holder.

           Whenever used herein, the words "Maker" and "Holder" shall be deemed
to include their respective heirs, personal representatives, successors and
assigns.

           This Note shall be assignable by Holder (as security or otherwise),
provided that Holder shall provide Maker with thirty (30) days' advance written
notice of its intention so to assign this Note, which notice shall identify the
proposed assignee.

           All notices to be given under this Note shall be deemed served upon
receipt by the addressee or, if mailed, upon the expiration of forty-eight (48)
hours after deposit in the United States Postal Service, certified mail, postage
prepaid, addressed to the address of Maker or Holder as hereinafter set forth:

           Maker's Address:               Telenetics Corporation
                                          25111 Arctic Ocean
                                          Lake Forest, California  92630
                                          Attention:  President

           Holder's Address:              Saunders & Parker, Inc.
                                          5735 Prestwick Lane
                                          Dallas, Texas  75252
                                          Attention:  Terry Parker

           MAKER:                         TELENETICS CORPORATION,
                                          a California corporation

                                          By:  /S/ David Stone
                                               ---------------------------------
                                               David Stone, President and Chief
                                               Financial Officer

                                       2

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00045-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00045-of-00352.parquet"}]]