T NETIX INC
PREM14A, 1999-02-16
COMMUNICATIONS SERVICES, NEC
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<PAGE>   1
                            SCHEDULE 14A INFORMATION


PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

Filed by the Registrant [X]
Filed by a Party other than the Registrant [   ]

Check the appropriate box:
[X] Preliminary Proxy Statement
[ ] Confidential, for Use of the Commission Only (as permitted by Rule
    14a-6(e)(2)) 
[ ] Definitive Proxy Statement 
[ ] Definitive Additional Materials
[ ] Soliciting Material Pursuant to sec.240.14a-11(c) or sec.240.14a-12

                                  T-NETIX, INC.
          -------------------------------------------------------------
                (Name of Registrant as Specified In Its Charter)
          -------------------------------------------------------------
    (Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

[ ] No fee required

[X] Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.

       (1) Title of each class of securities to which transaction applies:

                              Common Stock
           ---------------------------------------------------------

       (2) Aggregate number of securities to which transaction applies:

                               4,231,315
           ---------------------------------------------------------

       (3) Per unit price or other underlying value of transaction computed
           pursuant to Exchange Act Rule 0-11 (Set forth the amount on which the
           filing fee is calculated and state how it was determined):

           $5.6875, the average of the high and low prices of T-NETIX Stock on
           the Nasdaq National Market on February 9, 1999.

       (4) Proposed maximum aggregate value of transaction:

                 $24,065,604
           ---------------------------------------------------------

       (5) Total fee paid:

                  $4,813.12
           ---------------------------------------------------------

[ ]  Fee paid previously with preliminary materials.


<PAGE>   2


[ ] Check box if any part of the fee is offset as provided by Exchange Act
    Rule 0-11(a)(2) and identify the filing for which the offsetting fee was
    paid previously. Identify the previous filing by registration statement
    number, or the Form or Schedule and the date of its filing.

    (1)    Amount Previously Paid:


           ---------------------------------------------------------

    (2)    Form, Schedule or Registration Statement No.:


           ---------------------------------------------------------

    (3)    Filing Party:


           ---------------------------------------------------------

    (4)    Date Filed:


           ---------------------------------------------------------


                                      -2-
<PAGE>   3
                                PRELIMINARY COPY

                                  T-NETIX, INC.

                  MERGER PROPOSED--YOUR VOTE IS VERY IMPORTANT

         The Boards of Directors of Gateway Technologies, Inc. and T-NETIX, Inc.
have agreed to combine Gateway and T-NETIX. Your Board of Directors believes
that this proposed merger will create one of the strongest specialized call
processing companies. This combination of two companies which individually have
been among the specialized call processing industry's leaders will create an
even more dynamic competitor with annual revenues of nearly $70 million, and a
strong financial position from which to pursue growth internally and through
expansion into other call processing services. The familiarity of the two
companies with one another should assist the integration of the two companies.
Your Board of Directors unanimously approved the merger and believes that the
merger is in your best interest.

         In the merger, a subsidiary of T-NETIX will merge with and into
Gateway, and Gateway will become a wholly owned subsidiary of T-NETIX. Your
shares of T-NETIX common stock will not change as a result of the merger.
T-NETIX will issue up to 4,231,315 shares to current shareholders of Gateway in
connection with the merger, and will amend two of its stock option plans to
increase the number of shares which may be optioned under the plans from
2,000,000 to 2,600,000.

         We cannot complete the merger unless we obtain the necessary government
approvals and unless the shareholders of T-NETIX approve the issuance of the
shares and the amendment to the plans. We will hold a special meeting of our
shareholders to vote on this merger proposal. YOUR VOTE IS VERY IMPORTANT.
Whether or not you plan to attend the shareholder meeting, please take the time
to vote by completing and mailing the enclosed proxy card to us. If you date and
mail your proxy card without indicating how you want to vote, your proxy will be
counted as a vote FOR the merger.

         The date, time and place of the meeting are as follows:

                  67 Inverness Drive East, Suite 100
                  Englewood, Colorado 80112

                  March 29, 1999, 10:00 a.m. local time

         This Proxy Statement gives you detailed information about the merger
we're proposing, and it includes our merger agreement as an appendix. We
encourage you to read this entire document carefully. You can also obtain
information about T-NETIX from publicly available documents that T-NETIX has
filed with the Securities and Exchange Commission.

         I enthusiastically support this compelling combination of two of the
premier franchises in specialized call processing and join with the other
members of your Board of Directors in recommending that you vote in favor of the
merger.

                                 Alvyn A. Schopp
                             Chief Executive Officer
                                  T-NETIX, Inc.


             PLEASE SEE "RISK FACTORS" AT PAGE 25 OF THIS DOCUMENT.

- - --------------------------------------------------------------------------------
Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of the securities to be issued under this
Proxy Statement or determined if this Proxy Statement is accurate or adequate.
Any representation to the contrary is a criminal offense.
- - --------------------------------------------------------------------------------

                     Proxy Statement dated February 26, 1999
           and first mailed to shareholders on or about March 1, 1999


<PAGE>   4


                                  T-NETIX, INC.
                    NOTICE OF SPECIAL MEETING OF SHAREHOLDERS

         A special meeting of shareholders of T-NETIX, Inc. ("T-NETIX") will be
held at T-NETIX's headquarters at 67 Inverness Drive East, Suite 100, Englewood,
Colorado, on Monday, March 29, 1999, at 10:00 a.m., local time, for the
following purpose:

         To consider and vote upon a proposal to approve the issuance of up to
         4,231,315 shares of common stock, $0.01 stated value, of T-NETIX to the
         shareholders of Gateway Technologies, Inc. ("Gateway"), in accordance
         with the Agreement and Plan of Merger dated as of February 10, 1999
         (the "Merger Agreement"), among T-NETIX, Gateway, and a wholly owned
         subsidiary of T-NETIX called T-NETIX Acquisition Corp. ("TAC"),
         pursuant to which TAC will be merged with and into Gateway (the
         "Merger") with Gateway surviving the Merger as a wholly owned
         subsidiary of T-NETIX, and in connection with the Merger, to amend
         T-NETIX's 1993 Incentive Stock Option Plan and T-NETIX's Non-Qualified
         Stock Option Plan (collectively, the "Plans") to increase from
         2,000,000 to 2,600,000 the number of shares which may be optioned under
         the Plans.

         This matter is described in detail in the accompanying Proxy Statement.

         The record date for determining the holders of common stock entitled to
vote at the special meeting or any adjournment thereof is the close of business
on February 24, 1999.

         THE BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS THAT SHAREHOLDERS VOTE TO
APPROVE THE PROPOSAL LISTED ABOVE.

         PLEASE PROMPTLY VOTE, SIGN, DATE AND RETURN THE ENCLOSED PROXY CARD IN
THE ENCLOSED ENVELOPE.


                                        By Order of the Board of Directors

                                        /s/ JOHN GIANNAULA
                                        ----------------------------------
                                        John Giannaula
                                        Secretary

February 26, 1999


         Please do not mail in your T-NETIX stock certificates. Shareholders of
T-NETIX are not required to submit their T-NETIX stock certificates in
connection with the Merger.


<PAGE>   5


                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                               Page
                                                                                               ----

<S>                                                                                            <C>
SUMMARY  .......................................................................................1
     The Merger.................................................................................1
     Mechanics of the Merger....................................................................1
     Issuance of Shares to Gateway Shareholders.................................................1
     Gateway Stock Options/T-NETIX Option Plans.................................................1
     Indemnification Claims.....................................................................1
     The Shareholders' Meeting..................................................................2
     Record Date; Vote Required.................................................................2
     The Board's Reasons for the Merger.........................................................2
     Our Recommendation to Shareholders.........................................................3
     Dissenters' Appraisal Rights...............................................................3
     Conditions to Completion of the Merger.....................................................3
     Termination of the Agreement; Expenses and Damages.........................................3
     Management and Operations after the Merger.................................................4
     Accounting Treatment.......................................................................4
     Interests of Directors and Officers in the Merger that Differ from Your Interests..........4
     Regulatory Approvals.......................................................................4
     Comparative Per Share Market Price Information.............................................4
     The Companies..............................................................................4
     Forward-Looking Statements May Prove Inaccurate............................................5
     Selected Historical Financial Data.........................................................6
     Selected Unaudited Pro Forma Combined Financial Data.......................................7

THE SPECIAL MEETING............................................................................10
     General  .................................................................................10
     Record Date...............................................................................10
     Matters to Be Considered and Voted Upon...................................................10
     Date, Place and Time......................................................................10
     Vote Required for Approval................................................................10
     Voting and Revocation of Proxies..........................................................11
              General  ........................................................................11
              Revocation of Proxies............................................................11
     Solicitation of Proxies...................................................................11

THE MERGER.....................................................................................12
     Mechanics of the Merger...................................................................12
     Background of the Merger..................................................................12
     Reasons for the Merger; Recommendation of the Board.......................................13
              Fairness Opinion.................................................................14
              Recommendation of the Board of Directors.........................................18
     Terms of the Merger Agreement.............................................................18
              Operation of the Merger..........................................................18
              Consideration for Shares of Gateway Stock........................................18
              Issuance of Shares to Gateway Shareholders.......................................19
              Indemnification Claims...........................................................19
              Covenants in the Merger Agreement................................................20
              Conditions of the Merger Agreement...............................................22
              Termination of the Merger Agreement..............................................23
              Post-Closing Covenants...........................................................23
              Operation of Gateway and T-NETIX after the Merger................................24
              Employment Agreements............................................................24
</TABLE>


                                      -i-
<PAGE>   6


<TABLE>
<S>                                                                                           <C>
     Rights of Dissenting Shareholders.........................................................24
     Accounting Treatment......................................................................24
     Interests of Certain Persons in the Merger................................................25
     HSR Act and Other Antitrust Matters.......................................................25

RISK FACTORS...................................................................................25
     T-NETIX Depends on a Few Major Customers..................................................25
     Competition...............................................................................26
     Systems and Services May Become Obsolete..................................................26
     Protection of Proprietary Technology......................................................26
     Risk of Infringing on Existing Patents....................................................26
     The Risks Associated with Year 2000 Issues................................................26

DIVIDENDS AND PRICE RANGE OF COMMON STOCK......................................................27

DESCRIPTION OF T-NETIX.........................................................................27
     General  .................................................................................27
     Directors and Executive Officers..........................................................28
     Additional Information....................................................................30

DESCRIPTION OF GATEWAY.........................................................................30
     Business .................................................................................30
              General  ........................................................................30
              Corrections......................................................................30
              Products and Services............................................................31
                       Product/platform........................................................31
                       System Architecture and Technology......................................32
                       Support Infrastructure..................................................32
              Pricing  ........................................................................32
                       Direct Call Processing..................................................32
                       Transaction-based Pricing...............................................32
              Customers........................................................................32
                       Direct Call Processing Customers........................................32
                       Transaction Fee Customers...............................................33
              Research and Product Development.................................................33
              Regulation.......................................................................33
     Properties................................................................................34
     Competition...............................................................................34
     Employees and Employee Benefits...........................................................34
     Management's Discussion and Analysis of Financial Condition and Results of Operations.....35
              Overview ........................................................................35
     Liquidity and Capital Resources...........................................................39
     The Year 2000 Issue.......................................................................40
     Legal Proceedings.........................................................................41

PRINCIPAL SHAREHOLDERS.........................................................................41

AMENDMENTS TO T-NETIX STOCK OPTION PLANS.......................................................44
     New Plan Benefits.........................................................................44
     Executive Compensation....................................................................44
              Compensation of Directors........................................................44
              Board Committees and Meetings....................................................45
              Executive Compensation Table.....................................................45
              Option Grants in the Last Fiscal Year............................................45
</TABLE>

                                      -ii-

<PAGE>   7

<TABLE>
<S>                                                                                           <C>
              Management Incentive Programs....................................................46
              Stock Option Plans...............................................................46
              Compensation Committee Interlocks and Insider Participation......................47
              Compensation Committee Report on Executive Compensation..........................47
                       Executive Compensation Policies.........................................47
                       CEO Compensation........................................................47
              Company Performance..............................................................48

SHAREHOLDERS' PROPOSALS........................................................................48

LEGAL MATTERS..................................................................................48

EXPERTS  ......................................................................................49

WHERE YOU CAN FIND MORE INFORMATION............................................................49

CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING STATEMENTS.....................................50

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION...................................51

GATEWAY TECHNOLOGIES, INC. FINANCIAL STATEMENTS...............................................F-1
    Independent Auditors' Report of KPMG LLP..................................................F-1
    Independent Auditors' Report of Doshier, Pickens & Francis, P.C. .........................F-2
    Balance Sheets............................................................................F-3
    Statements of Operations..................................................................F-4
    Statements of Stockholders' Equity........................................................F-5
    Statements of Cash Flows..................................................................F-6
    Notes of Financial Statements.............................................................F-7

APPENDIX A

APPENDIX B

APPENDIX C (SEC ONLY)

APPENDIX D (SEC ONLY)
</TABLE>


                                     -iii-

<PAGE>   8


                                    SUMMARY

       This brief summary highlights selected information from the Proxy
Statement. It does not contain all of the information that is important to you.
We urge you to carefully read the entire Proxy Statement and the other documents
to which this document refers so that you can fully understand the merger. See
"Where You Can Find More Information."

THE MERGER (page 12)

We have attached the merger agreement to this document as Appendix A. Please
read the merger agreement. It is the legal document that governs the merger.

MECHANICS OF THE MERGER (page 12)

We propose a combination in which a subsidiary of T-NETIX will merge into
Gateway. Gateway will survive the merger as a subsidiary of T-NETIX. The
combined company's corporate headquarters will be in Englewood, Colorado, but
Gateway will also keep its offices in Carrollton, Texas. We expect to complete
the merger at the end of the first quarter of 1999.

As a result of the merger, the status of the current shareholders and option
holders of T-NETIX will remain the same. The current shareholders of Gateway
will become shareholders of T-NETIX. Also, those persons who currently hold
options to purchase Gateway common stock will exchange those options for options
to purchase T-NETIX common stock.

Please complete and sign the enclosed proxy card and send it to T-NETIX in the
postage-paid return envelope which has been provided to you so that your shares
of T-NETIX common stock will be represented and voted at the shareholders'
meeting. You do not need to send in your T-NETIX stock certificates.

ISSUANCE OF SHARES TO GATEWAY SHAREHOLDERS
(pages 18 and 19)

In the merger, T-NETIX will issue up to 4,231,315 shares of its common stock to
current shareholders of Gateway. This total is made up of three parts: (1)
3,672,358 shares to be issued to Gateway shareholders in exchange for their
shares of Gateway common stock, based upon the exchange ratio of 5.0375 shares
of T-NETIX common stock for each share of Gateway common stock; (2) 375,339
additional shares to be issued to certain Gateway shareholders in exchange for
their terminating a royalty agreement they have with Gateway; and (3) 183,618
shares which T-NETIX will set aside, but which T-NETIX will not issue to Gateway
shareholders unless T-NETIX is required under the merger agreement to reimburse
the Gateway shareholders for any losses resulting from a breach of the merger
agreement.

GATEWAY STOCK OPTIONS/T-NETIX OPTION PLANS
(page 18)

In the merger, outstanding options to buy Gateway common stock will become
options to buy T-NETIX common stock. T-NETIX stock options for approximately
348,000 shares will be issued in the merger.

In order to accommodate the T-NETIX stock options being issued in exchange for
Gateway stock options, T-NETIX must amend its 1993 Incentive Stock Option Plan
and its Non-qualified Stock Option Plan to increase the number of shares which
may be optioned under the plans from 2,000,000 to 2,600,000. This will also
allow for new incentive compensation alternatives for employees of the combined
company. There are currently 120,368 shares available to be optioned under the
plans.

INDEMNIFICATION CLAIMS (page 19)

Instead of issuing all of the T-NETIX common stock to Gateway's shareholders
right away, T-NETIX will hold back 5% of the shares of T-NETIX common stock to
be issued in the merger (183,618 shares total). T-NETIX will also reserve and
set aside an equal number of additional shares of T-NETIX common stock. These
shares will not be deducted from the shares to be issued to Gateway's
shareholders.

If T-NETIX breaches the merger agreement, T-NETIX will reimburse Gateway's
shareholders for certain expenses and losses which result from the breach.
Likewise, if Gateway breaches the merger


                                      - 1 -

<PAGE>   9


agreement, Gateway's shareholders will reimburse T-NETIX for certain expenses
and losses which result from the breach.

Except where the breach is a knowing and willful misrepresentation, T-NETIX will
only have to reimburse Gateway' shareholders by issuing reserved shares. After
all reserved shares have been issued, T-NETIX will not have to reimburse
Gateway's shareholders for any other amounts.

Likewise, except where the breach is a knowing and willful misrepresentation,
Gateway's shareholders will only have to reimburse T-NETIX by giving up their
rights to the held-back shares. After Gateway's shareholders have given up their
rights to all of the held-back shares, Gateway's shareholders will not have to
reimburse T-NETIX for any other amounts.

Except where the breach is a willful, knowing or intentional misrepresentation,
no reimbursement will be required unless and until the total amount claimed for
reimbursement exceeds $500,000.

The reimbursement period will only last one year, and may last a shorter time.
However, if someone makes a written claim for reimbursement before the
reimbursement period ends, the reimbursement period will last until that claim
is resolved.

When the reimbursement period ends, (1) T-NETIX will issue any remaining
held-back shares to Gateway's shareholders, and (2) T-NETIX will not have to
issue any remaining reserved shares to Gateway's shareholders.

THE SHAREHOLDERS' MEETING (page 10)

The shareholders' meeting will be held on March 29, 1999, at 10:00 a.m., local
time, at the headquarters of T-NETIX, 67 Inverness Drive East, Suite 100,
Englewood, Colorado 80112. At the shareholders' meeting, you will be asked:

       To approve the issuance of T-NETIX common stock under a merger agreement
       that provides for the merger of a subsidiary of T-NETIX into Gateway and,
       in connection with the merger, to adopt amendments to our company's stock
       option plans to increase the number of shares of T-NETIX common stock
       that can be optioned under the plans from 2,000,000 to 2,600,000.

RECORD DATE; VOTE REQUIRED (pages 10 and 11)

You can vote at the meeting of T-NETIX shareholders if you owned T-NETIX common
stock at the close of business on February 24, 1999. You can cast one vote for
each share of T-NETIX common stock that you owned at that time. To approve the
issuance of T-NETIX common stock in the merger and to adopt the amendments to
our stock option plans, the holders of a majority of the shares of T-NETIX
common stock voting at the meeting must vote in favor of doing so.

We will not effect the amendments to the stock option plans unless the issuance
of stock in the merger is approved.

You may vote your shares in person by attending the meeting or by mailing us
your proxy if you are unable or do not wish to attend. You can revoke your proxy
at any time before we take a vote at the meeting by sending a written notice
revoking the proxy or a later-dated proxy to the secretary of T-NETIX, or by
attending the meeting and voting in person.

THE BOARD'S REASONS FOR THE MERGER (page 13)

We are proposing the merger because we believe that by combining T-NETIX and
Gateway we can create a stronger and more diversified company that will provide
significant benefits to our customers and shareholders. Specifically, we believe
that the merger offers the following strategic and financial benefits:

o      We believe the combined company will be a preeminent, high-quality
       specialized call processing company with a broader product range and
       stronger business prospects than either company could accomplish alone,
       and will have greater market diversification resulting in increased
       financial stability.

o      The combined company will own what we believe will be a formidable
       portfolio of call processing intellectual property in areas such as
       automated operator, three-way calling, integrated recording and
       monitoring, call blocking, commissary and speaker verification features.



                                      - 2 -
<PAGE>   10


o      We believe that the combined company will have strong relationships with
       all the Regional Bell Operating Companies, and will provide significant
       cross-selling opportunities.

o      We expect the combination of the sales forces to allow the combined
       company to sell broad-based services to the telecommunications carriers,
       and to market the company's products directly to the correctional
       facilities.

o      We believe that increased market capitalization of the combined company
       will create greater visibility in the investment community and will
       provide the combined company's shareholders greater liquidity for their
       shares, thereby enhancing the stock's attractiveness to current and
       prospective shareholders.

o      We believe the combined company will have greater ability to raise
       capital to finance future growth.

In addition, T-NETIX received an opinion from the investment banking firm of
Broadview International LLC that the merger is fair to T-NETIX and its
shareholders from a financial point of view. That opinion is attached as
APPENDIX B.

The discussion of our reasons for the merger includes forward-looking statements
about possible or assumed future results of our operations and the performance
of the combined company after the merger. For a discussion of factors that could
affect these future results, see "Risk Factors" on page 25 and "Cautionary
Statement Concerning Forward- Looking Statements" on page 50.

OUR RECOMMENDATION TO SHAREHOLDERS (page 18)

The Board of Directors believes that the merger is fair to you and in your best
interests and unanimously recommends that you vote "FOR" the proposal to approve
the issuance of T-NETIX common stock in the merger and the adoption of the
amendments to T-NETIX's stock option plans.

DISSENTERS' APPRAISAL RIGHTS (page 24)

Colorado law does not provide T-NETIX shareholders with dissenters' appraisal
rights in the merger because T-NETIX common stock is publicly traded.

CONDITIONS TO COMPLETION OF THE MERGER (page 22)

Completing the merger depends on a number of conditions being met. Following is
a list of a few of the conditions:

(a)    That neither company has suffered a material adverse change in its
       business;

(b)    That the shareholders of both companies approve the merger;

(c)    That T-NETIX's legal counsel has given the companies a legal opinion that
       the merger will be tax free to both companies and tax free to all
       shareholders (except as to cash received instead of fractions of shares,
       and except as to shareholders who dissent);

(d)    That the companies receive all required governmental and other third
       party approvals of the merger, and that no legal action has been taken to
       try to prevent the merger; and

(f)    That the merger will be accounted for as a pooling of interests under the
       accounting rules.

A party to the merger agreement could choose to complete the merger even though
a condition has not been satisfied, as long as the law allows it to do so.

We cannot be certain when, or if, the conditions to the merger will be satisfied
or waived, or that the merger will be completed.

TERMINATION OF THE AGREEMENT; EXPENSES AND
DAMAGES (page 23)

The companies can agree at any time to terminate the merger agreement without
completing the merger. Also, either company can decide, without the consent of
the other, to terminate the merger agreement in certain circumstances, such as
if a condition to the merger has not been satisfied and the company that wants
to terminate the merger agreement has not materially violated it. If the
companies terminate the merger agreement, each will pay its own expenses, and in
most circumstances will not have any liability to each other.


                                     - 3 -

<PAGE>   11


However, if one of the companies terminates the merger agreement because of
certain reasons and then merges with someone else, the company that terminated
the merger agreement has to pay the other company $5 million.

MANAGEMENT AND OPERATIONS AFTER THE MERGER
(pages 23 and 24)

Upon completion of the merger, T-NETIX's Board of Directors will include all of
the individuals currently serving on T-NETIX's Board of Directors. In addition,
Richard E. Cree and W. P. Buckthal, who are now Gateway shareholders, will join
T-NETIX's Board of Directors. This will result in a nine (9) member Board of
Directors for T-NETIX.

Alvyn A. Schopp, currently President and Chief Executive Officer of T-NETIX,
will remain in his current position. Gateway's President and Chief Executive
Officer, Richard E. Cree, will become the Executive Vice President of T-NETIX
following the merger. The remainder of the senior management teams of T-NETIX
and Gateway are expected to remain the same.

ACCOUNTING TREATMENT (page 24)

It is a condition to the merger that the merger qualify as a "pooling of
interests." This means that, for accounting and financial reporting purposes, we
will treat our companies as if they had always been one company.

INTERESTS OF DIRECTORS AND OFFICERS IN THE MERGER
THAT DIFFER FROM YOUR INTERESTS (page 25)

Certain of our officers and directors may have interests in the merger that are
different from yours, and may in fact conflict with your interests. For example,
after T-NETIX issues stock options to holders of Gateway options in the merger,
there will be approximately 372,600 shares of T-NETIX Stock available to be
optioned because of the amendments to T-NETIX's stock option plans. T-NETIX's
directors and officers will be eligible to receive these options, although there
are no specific plans to grant options to them at this time.

REGULATORY APPROVALS (page 25)

Because of the size of the merger, the companies were legally required to file
notice of the merger with the U.S. Federal Trade Commission and the U.S.
Department of Justice. After filing the notice, we cannot complete the merger
for 30 days or until the FTC terminates our waiting period early. We filed the
notice on February ___, 1999, and at the time we sent out these materials the
FTC had not yet terminated our waiting period. These agencies are reviewing the
merger to make sure it is legal under the antitrust laws. At any time before or
after the merger takes place, either agency could take action under the
antitrust laws to stop the merger, undo the merger or require one of us to sell
a large amount of assets. Although we believe that the merger is legal under the
antitrust laws, there still could be an antitrust challenge to the merger, and
if there is a challenge it might be successful.

COMPARATIVE PER SHARE MARKET PRICE
INFORMATION (page 27)

Shares of T-NETIX common stock are listed on the Nasdaq National Market. On
February 10, 1999, the last trading day before we announced the merger, T-NETIX
common stock closed at $6.625 per share. On February 24, 1999, T-NETIX common
stock closed at $___________ per share. There is no public trading market for
Gateway common stock. The most recent trade of Gateway common stock of which
management is aware was a sale of 6,500 shares for $18.98 per share in April
1998.

Based on the 5.0375-for-one exchange ratio and including the 375,339 shares to
be issued for terminating the royalty agreement, the total market value of the
consideration that Gateway shareholders will receive in the merger would be
$26,815,993 based on T-NETIX's closing stock price on February 10, 1999, and
$___________ based on T-NETIX's closing stock price on February 24, 1999. Of
course, the market price of T-NETIX common stock will fluctuate prior to the
merger, while the exchange ratio is fixed.

THE COMPANIES (pages 27 and 30)

T-NETIX, Inc.
67 Inverness Drive East, Suite 100
Englewood, CO 80112
(303) 790-9111

T-NETIX provides specialized call processing services to the telecommunications
and other service industries. T-NETIX's primary customers include


                                     - 4 -

<PAGE>   12




AT&T, Bell Atlantic, US WEST, SBC Communications, Inc., BellSouth, MCI WorldCom
and GTE. These customers use T-NETIX's products and services to provide annually
over 93,000,000 billable inmate collect calls in over 800 correctional
institutions. T-NETIX's products and services include comprehensive transaction
processing, call management and identification systems for the corrections
industry and special-purpose speech processing software and systems. T-NETIX's
current products are based on proprietary software, the most critical of which
is patented or patent pending, and a combination of proprietary and "off-
the-shelf" electronic hardware. These systems are designed to be flexible
delivery platforms which are easily integrated with T-NETIX's customer's
networks and information systems. T-NETIX's revenue stream is mostly recurring,
as a result of T-NETIX's generally charging for its services on a fee per
transaction processed basis over long-term contracts.

At December 31, 1998, T-NETIX's assets were $48,663,000 and total shareholders'
equity was $26,320,000. For the fiscal year ended July 31, 1998, T-NETIX's net
earnings were $599,000.

Gateway Technologies, Inc.
1544 Valwood Parkway, Suite 102
Carrollton, Texas 75006
(972) 241-1535

Gateway is engaged in the development, manufacturing, marketing and support of
computer-automated telephone systems. Gateway receives nearly all of its
revenues from its operation of inmate telecommunications systems located in
correctional facilities in approximately 23 states.

Gateway's primary customers include two distinct groups. The first group is
correctional facilities for which Gateway serves as the exclusive provider of
telecommunication services to inmates. The second group includes regional Bell
operating companies and inter-exchange carriers such as Ameritech, Bell
Atlantic, US WEST, SBC Communications, Inc., AT&T and MCI WorldCom. Gateway
provides specialized call processing and fraud control services to these
customers. These two customer groups combined use Gateway's products and
services to provide annually over 40,000,000 billable inmate collect calls in
over 500 correctional institutions.

Gateway's products and services include comprehensive transaction processing,
call management, call recording and identification systems for the corrections
industry. Gateway's current products are based on proprietary software, the most
critical of which are patented or patent pending, and a combination of
proprietary and "off- the-shelf" electronic hardware. These systems are designed
to be flexible delivery platforms which are easily integrated with Gateway's
customers' networks and information systems.

Gateway's revenue stream is mostly recurring, as a result of the continuous
collect calls generated by the correctional facilities and the fee per
transaction charged to the other customers over long-term contracts.

At November 30, 1998, Gateway's assets were $18,061,000 and total shareholders'
equity was $3,809,000. For the fiscal year ended December 31, 1997, Gateway's
net earnings were $1,154,000.

FORWARD-LOOKING STATEMENTS MAY PROVE
INACCURATE (pages 25 and 50)

We have made forward-looking statements in this document (and in documents to
which we refer in this document) that are subject to risks and uncertainties.
These forward-looking statements include information about possible or assumed
future combined results of our operations or the performance of the combined
company after the merger is completed. When we use any of the words
"anticipate," "believe," "effect," "estimate" "expect," "intend," "plan" or
similar expressions, we are making forward-looking statements. Many possible
events or factors could affect the future financial results and performance of
our companies after the merger and could cause those results or performance to
differ materially from those expressed in our forward-looking statements.



                                     - 5 -

<PAGE>   13


SELECTED HISTORICAL FINANCIAL DATA

       T-NETIX. The selected financial data presented below under the captions
"Statement of income data," "Per share data" and "Balance sheet data" are for
T-NETIX, as of and for each of the years in the five-year period ended July 31,
1998, and as of and for each of the five-month periods ended December 31, 1998
and 1997. Such data have been derived from, and should be read in conjunction
with, the audited consolidated financial statements contained in T-NETIX's
Annual Report on Form 10-K for the fiscal year ended July 31, 1998, and
unaudited consolidated financial statements contained in the Quarterly
Transition Report on Form 10-QT for the five months ended December 31, 1998,
including the notes thereto, incorporated by reference into and enclosed with
this document. See "Where You Can Find More Information." T-NETIX has changed
its fiscal year-end from July 31 to December 31, effective December 31, 1998.

                         T-NETIX, INC. AND SUBSIDIARIES
                       SELECTED HISTORICAL FINANCIAL DATA
                      (in thousands, except per share data)

<TABLE>
<CAPTION>
                                          Five Months Ended
                                             December 31                            Year Ended July 31                      
                                        ----------------------     ------------------------------------------------------------
                                          1998          1997         1998         1997         1996         1995         1994
                                        --------      --------     --------     --------     --------     --------     --------
<S>                                     <C>           <C>          <C>          <C>          <C>          <C>          <C>     
STATEMENT OF INCOME DATA
     Total revenue                      $ 15,088      $ 16,137     $ 38,213     $ 36,292     $ 33,378     $ 27,754     $ 11,290
     Operating income (loss)              (2,518)        1,068        1,852        1,955        2,221        3,974          722
     Net earnings (loss)                  (2,188)          467          599          591        1,627        3,188         (322)

PER SHARE DATA
     Diluted earnings (loss) per
         common share                   $  (0.26)     $   0.05     $   0.07     $   0.06     $   0.18     $   0.38     $  (0.06)
     Weighted average common shares
         outstanding-diluted               8,551         9,126        9,206        9,156        8,814        8,360        5,280
</TABLE>

<TABLE>
<CAPTION>
                                  December 31                                July 31
                              -------------------     -------------------------------------------------------
                               1998        1997        1998        1997        1996        1995        1994
                              -------     -------     -------     -------     -------     -------     -------

BALANCE SHEET DATA
<S>                           <C>         <C>         <C>         <C>         <C>         <C>         <C>    
     Total assets             $48,663     $45,891     $44,673     $46,910     $42,527     $34,904     $16,968
     Debt                      15,160      11,203      10,803      13,378       6,809       6,062       9,611
     Total liabilities         22,343      17,779      16,203      20,058      16,968      14,449      15,401
     Shareholders' equity      26,320      28,112      28,470      26,852      25,559      20,455       1,567
</TABLE>


         Gateway. The following table sets forth selected financial data for
Gateway as of and for each of the years in the five-year period ended December
31, 1997, and as of and for each of the eleven-month periods ended November 30,
1998 and 1997. Such data have been derived from, and should be read in
conjunction with, the audited financial statements of Gateway for the year ended
December 31, 1997, and the unaudited interim financial statements of Gateway for
the eleven months ended November 30, 1998 and 1997, including the notes thereto,
attached to this Proxy Statement. See "Where You Can Find More Information."


                                     - 6 -

<PAGE>   14


                           GATEWAY TECHNOLOGIES, INC.
                       SELECTED HISTORICAL FINANCIAL DATA
                      (in thousands, except per share data)

<TABLE>
<CAPTION>
                                              Eleven Months
                                               Ended Nov. 30                            Year Ended December 31
                                           ---------------------     -------------------------------------------------------------
                                             1998         1997         1997         1996          1995         1994         1993
                                           --------     --------     --------     --------      --------     --------     --------
<S>                                        <C>          <C>          <C>          <C>           <C>          <C>          <C>     
STATEMENT OF INCOME DATA
     Total revenue                         $ 27,740     $ 23,323     $ 26,013     $ 20,433      $ 16,271     $ 11,530     $  6,410
     Operating income (loss)                  1,407        2,009        2,412         (398)          293          699         (417)
     Net earnings (loss)                        122          924        1,154         (514)          395          261         (674)

PER SHARE DATA
     Diluted earnings (loss) per share     $   0.15     $   1.19     $   1.48     $  (0.83)     $   0.60     $   0.44     $  (1.18)
     Weighted average common shares
         outstanding-diluted                    774          779          779          666           610          588          572
</TABLE>

<TABLE>
<CAPTION>
                                              November 30                              December 31
                                          -------------------     -------------------------------------------------------
                                           1998        1997        1997        1996        1995        1994        1993
                                          -------     -------     -------     -------     -------     -------     -------
<S>                                       <C>         <C>         <C>         <C>         <C>         <C>         <C>    
BALANCE SHEET DATA
     Total assets                         $18,061     $13,127     $14,272     $11,743     $ 8,804     $ 6,334     $ 3,602
     Debt and redeemable preferred
         stock                             10,337       7,392       7,828       7,012       4,824       3,067       2,197
     Total liabilities and redeemable
         preferred stock                   14,252      10,232      11,147      10,336       7,596       5,605       3,025
     Stockholders' equity                   3,809       2,895       3,125       1,407       1,208         729         577
</TABLE>


SELECTED UNAUDITED PRO FORMA COMBINED FINANCIAL DATA

         The following table sets forth selected unaudited pro forma combined
financial data (the "Selected Unaudited Pro Forma Financial Data") for T-NETIX
as of and for each of the three years in the period ended July 31, 1998, and as
of and for the five-month periods ended December 31, 1998 and 1997. The Selected
Unaudited Pro Forma Financial Data are presented to reflect the estimated impact
on the historical consolidated financial statements of T-NETIX of the merger,
which will be accounted for as a pooling of interests, and the issuance of
approximately 4,048,000 shares of T-NETIX common stock upon consummation of the
merger. See "The Merger--Accounting Treatment." The unaudited pro forma combined
statements of income data assume that the merger had been consummated as of
August 1, 1995, and the unaudited pro forma combined balance sheet data assume
that the merger had been consummated on December 31, 1998. Certain adjustments
to the data presented have also been made to reflect the different fiscal years
of T-NETIX and Gateway (see note a, below).

         The Selected Unaudited Pro Forma Financial Data have been derived from
or prepared consistently with the unaudited pro forma condensed combined
financial statements, which start at page 51 of this Proxy Statement. The
Selected Unaudited Pro Forma Financial Data are presented for illustrative
purposes only and are not necessarily indicative of the financial position or
operating results that would have occurred or that will occur upon consummation
of the merger. The following Selected Unaudited Pro Forma Financial Data should
be read in conjunction with the historical and unaudited pro forma condensed
combined financial statements and notes thereto incorporated by reference into,
or included elsewhere in, this document. See "Where You Can Find More
Information" and "Unaudited Pro Forma Condensed Combined Financial Information."



                                      - 7 -

<PAGE>   15


                         T-NETIX, INC. AND SUBSIDIARIES
              SELECTED UNAUDITED PRO FORMA COMBINED FINANCIAL DATA
                      (in thousands, except per share data)

<TABLE>
<CAPTION>
                                                Five Months
                                              Ended December 31                Year Ended July 31
                                           ----------------------     ----------------------------------
                                             1998          1997         1998         1997         1996
                                           --------      --------     --------     --------     --------
<S>                                        <C>           <C>          <C>          <C>          <C>  
STATEMENT OF INCOME DATA
     Total revenue                         $ 27,628      $ 27,049     $ 66,941     $ 62,243     $ 53,811
     Operating income (loss)                 (1,972)        2,099        4,162        4,690        2,138
     Net earnings (loss)                     (2,453)          957        1,691        1,958        1,321

PER SHARE DATA
     Diluted earnings (loss) per share     $  (0.19)     $   0.07     $   0.13     $   0.15     $   0.10
     Weighted average common shares
         outstanding-diluted                 12,599        13,174       13,254       13,204       12,862
</TABLE>

<TABLE>
<CAPTION>
                             December 31    
                                1998 
                              -------
<S>                           <C>     
BALANCE SHEET DATA
     Total assets             $66,656
     Debt                      25,497
     Total liabilities         38,095
     Shareholders' equity      28,561
</TABLE>
- - -------------------
(a)      The selected unaudited pro forma combined statements of income and per
         share data, which present data for T-NETIX for the fiscal years ended
         July 31, 1998, 1997 and 1996, and the five months ended December 31,
         1998 and 1997, have been combined with the recast statements of income
         and per share data of Gateway for the twelve-month period ended July
         31, 1998, and the fiscal years ended December 31, 1997 and 1996, and
         the five months ended November 30, 1998 and 1997. The selected
         unaudited pro forma combined balance sheet data present the balance
         sheet of T-NETIX as of December 31, 1998, combined with the balance
         sheet of Gateway as of November 30, 1998. Gateway's fiscal year ends on
         December 31.

COMPARATIVE PER SHARE DATA

         The following table sets forth earnings and book value per share data
for T-NETIX and Gateway on both historical and pro forma combined bases and on a
per share equivalent pro forma basis for Gateway. Pro forma combined earnings
per share are derived from the Unaudited Pro Forma Condensed Combined Financial
Information presented elsewhere in this Proxy Statement, which gives effect to
the merger accounted for under the pooling of interests method. There were no
cash dividends declared in the periods indicated. Book value per share for the
pro forma combined presentation is based upon outstanding shares of T-NETIX
common stock, adjusted to include shares of T-NETIX common stock to be issued in
the merger for outstanding shares of Gateway common stock at the effective time
of the merger, based on the conversion of each share of Gateway common stock
into 5.0375 shares of T-NETIX common stock. The information set forth below
should be read in conjunction with the respective historical audited annual and
unaudited interim financial statements of T-NETIX and Gateway incorporated by
reference or attached to this Proxy Statement and the "Selected Unaudited Pro
Forma Combined Financial and Other Data" and the notes thereto presented in the
"Summary" hereto. See "Where You Can Find More Information" and "Unaudited Pro
Forma Condensed Combined Financial Information."


                                     - 8 -

<PAGE>   16


                 T-NETIX AND GATEWAY COMPARATIVE PER SHARE DATA

T-NETIX HISTORICAL

<TABLE>
<CAPTION>
                                          Five Months
                                       Ended December 31         Year Ended July 31
                                      -------------------  ----------------------------
                                        1998       1997      1998      1997      1996
                                      --------   --------  --------  --------  --------
<S>                                   <C>        <C>       <C>       <C>       <C>     
Diluted earnings (loss) per share     $  (0.26)  $   0.05  $   0.07  $   0.06  $   0.18
Book value per share                  $   3.08   $   3.32  $   3.33  $   3.23  $   3.14
</TABLE>

T-NETIX AND GATEWAY--UNAUDITED PRO FORMA COMBINED(a)

<TABLE>
<CAPTION>
                                            Five Months
                                          Ended December 31         Year Ended July 31
                                         -------------------  ----------------------------
                                           1998       1997      1998      1997      1996
                                         --------   --------  --------  --------  --------
<S>                                      <C>        <C>       <C>       <C>       <C>     
     Diluted earnings (loss) per share   $  (0.19)  $   0.07  $   0.13  $   0.15  $   0.10
     Book value per share                $   2.27
</TABLE>

GATEWAY HISTORICAL

<TABLE>
<CAPTION>
                                               Five Months            
                                            Ended November 30         Year Ended      Year Ended December 31
                                          ---------------------         July 31       ----------------------
                                           1998           1997           1998          1997            1996
                                          ------         ------       ----------      ------          ------
<S>                                       <C>            <C>            <C>           <C>             <C>    
     Diluted earnings (loss) per share    $ 0.44         $ 0.59         $ 1.24        $ 1.48          $(0.83)
     Book value per share                 $ 5.18                                      $ 4.43          $ 2.11
</TABLE>

GATEWAY PER SHARE EQUIVALENTS (b)

<TABLE>
<CAPTION>
                                            Five Months
                                          Ended December 31         Year Ended July 31
                                         -------------------  ----------------------------
                                           1998       1997      1998      1997      1996
                                         --------   --------  --------  --------  --------
<S>                                      <C>        <C>       <C>       <C>       <C>     
     Diluted earnings (loss) per share   $  (0.96)  $   0.35  $   0.65  $   0.76  $   0.50
     Book value per share                   11.44                          
</TABLE>

- - ----------------------------
(a)      The unaudited pro forma T-NETIX and Gateway combined diluted earnings
         (loss) per share present the combination of T-NETIX financial
         information for the five months ended December 31, 1998 and 1997, and
         for the fiscal years ended July 31, 1998, 1997, and 1996, and the
         recast Gateway financial information for the five months ended November
         30, 1998 and 1997, and for the twelve-month period ended July 31, 1998,
         and the years ended December 31, 1997, and 1996. The T-NETIX and
         Gateway unaudited pro forma combined book value per share presents the
         book value of T-NETIX as of December 31, 1998, combined with the recast
         book value of Gateway as of November 30, 1998. Gateway's fiscal year
         ends on December 31.

(b)      Gateway per share equivalent unaudited pro forma data represent the
         unaudited pro forma combined per share data multiplied by the exchange
         ratio of 5.0375 shares of T-NETIX common stock for each share of
         Gateway common stock.


                                     - 9 -

<PAGE>   17




                               THE SPECIAL MEETING

GENERAL

         This Proxy Statement is furnished by T-NETIX, Inc. ("T-NETIX") to the
holders of the common stock of T-NETIX, stated value $0.01 per share (the
"T-NETIX Stock"), in connection with the solicitation of proxies by the Board of
Directors of T-NETIX (the "T-NETIX Board") for use at the special meeting of the
shareholders of T-NETIX (the "Special Meeting") to be held on March 29, 1999,
for the purposes described in this document. Each copy of this Proxy Statement
mailed to holders of T-NETIX Stock is accompanied by a form of proxy ("Proxy
Card") for use at the Special Meeting.

RECORD DATE

         The T-NETIX Board has fixed the close of business on February 24, 1999,
as the record date (the "Record Date") for determining the holders of T-NETIX
Stock that are entitled to receive notice of and to vote at the Special Meeting.

MATTERS TO BE CONSIDERED AND VOTED UPON

         At the Special Meeting, shareholders will be asked to consider and vote
upon the following proposal relating to the merger (the "Merger") of T-NETIX
Acquisition Corp. ("TAC"), a wholly owned subsidiary of T-NETIX, with and into
Gateway Technologies, Inc. ("Gateway"), with Gateway surviving the Merger as a
wholly owned subsidiary of T-NETIX:

         Issuing up to 4,231,315 shares of T-NETIX Stock in connection with the
         Merger, and amending T-NETIX's 1993 Incentive Stock Option Plan and
         Non-qualified Stock Option Plan (collectively, the "Plans") to increase
         from 2,000,000 to 2,600,000 the number of shares which may be optioned
         under the Plans.

         The total of approximately 4,231,315 shares of T-NETIX Stock is made up
of (1) 3,672,358 shares to be issued to the shareholders of Gateway in exchange
for their shares of Gateway common stock, $1.00 par value per share (the
"Gateway Stock") at an exchange ratio of 5.0375-for-one; (2) the issuance of
375,339 shares to certain of Gateway's shareholders in exchange for their
termination of a royalty agreement among them and Gateway; and (3) T-NETIX's
reservation of 183,618 shares (5% of 3,672,358) for possible issuance to
Gateway's shareholders in the event that T-NETIX is required under the Agreement
and Plan of Merger between T-NETIX and Gateway dated February 10, 1999 (the
"Merger Agreement"), to indemnify Gateway's shareholders for any losses
resulting from a breach of the Merger Agreement. See "The Merger--Terms of the
Merger Agreement."

         The amendments to the Plans will accommodate the exchange of
outstanding Gateway stock options for T-NETIX stock options, as provided in the
Merger Agreement. There are currently 120,368 shares of T-NETIX Stock available
for options under the Plans, and T-NETIX stock options for approximately 348,000
shares will be issued in the Merger. The amendments to the Plans will also allow
for new incentive compensation alternatives for employees of the combined
company. See "Amendments to T-NETIX Stock Option Plans--New Plan Benefits."

DATE, PLACE AND TIME

         The Special Meeting will be held at 10:00 a.m., local time, on Monday,
March 29, 1999, at T-NETIX's headquarters at 67 Inverness Drive East, Suite 100,
Englewood, Colorado 80112.

VOTE REQUIRED FOR APPROVAL

         As of the Record Date, there were __________ shares of T-NETIX Stock
outstanding. Each share of T-NETIX Stock is entitled to one vote upon each
matter properly submitted to shareholders at the Special Meeting.


                                     - 10 -

<PAGE>   18


         Approval of the proposal requires that a quorum be present at the
Special Meeting, in person or by proxy, and requires the affirmative vote of a
majority of the votes cast, in person or by proxy, at the Special Meeting.

         Abstentions and broker non-votes will be counted as present for
purposes of determining whether a quorum is present. A "broker non-vote" occurs
when a nominee who holds shares for a beneficial owner may not vote because the
nominee does not have discretionary voting power and has not received
instructions from the beneficial owner with respect to a proposal. Because
abstentions and broker non-votes do not constitute votes cast, they will have no
effect on the outcome of the vote on the proposal.

         As of the Record Date, directors and executive officers of T-NETIX and
their affiliates owned beneficially an aggregate of ___________ shares of
T-NETIX Stock (including shares subject to options which are exercisable within
60 days). This constitutes ______% of the total outstanding shares of T-NETIX
Stock. Directors and executive officers of T-NETIX have indicated their
intention to vote their T-NETIX Stock in favor of the issuance of T-NETIX Stock
in the merger and the amendments to the Plans.

VOTING AND REVOCATION OF PROXIES

General

         T-NETIX Stock represented by a Proxy Card properly signed and received
at or prior to the Special Meeting, unless subsequently revoked, will be voted
in accordance with the instructions thereon. IF A PROXY CARD IS SIGNED AND
RETURNED WITHOUT INDICATING ANY VOTING INSTRUCTIONS, T-NETIX STOCK REPRESENTED
BY THE PROXY WILL BE VOTED FOR THE PROPOSAL. The proxy holders may, in their
discretion, vote shares which have been voted in favor of the proposal to
adjourn the Special Meeting to solicit additional proxies in favor of the
proposal.

Revocation of Proxies

         Any proxy given pursuant to this solicitation may be revoked by the
person giving it at any time before the proxy is voted at the Special Meeting if
written notice of such revocation or another duly executed Proxy Card bearing a
later date is filed with the Corporate Secretary of T-NETIX, or by giving oral
notice at the Special Meeting. All written notices of revocation and other
communications with respect to revocation of proxies should be addressed as
follows: T-NETIX, Inc., 67 Inverness Drive East, Suite 100, Englewood, Colorado
80112; Attention: Corporate Secretary. Attendance at the Special Meeting will
not in and of itself constitute revocation of a proxy.

SOLICITATION OF PROXIES

         In addition to solicitation by mail, directors, officers and employees
of T-NETIX, none of whom will be specifically compensated for such services, may
solicit proxies from the shareholders of T-NETIX, personally or by telephone,
facsimile, electronic mail, or by other forms of communication. Brokerage
houses, nominees, fiduciaries and other custodians will be requested to forward
soliciting materials to beneficial owners and will be reimbursed for their
reasonable expenses incurred in sending proxy materials to beneficial owners.

         T-NETIX will bear its own expenses in connection with the solicitation
of proxies for the Special Meeting.


                                     - 11 -

<PAGE>   19


                                   THE MERGER

         This section of the Proxy Statement describes the material aspects of
the Merger Agreement and the Merger. The following description does not purport
to be complete and is qualified in its entirety by reference to the Merger
Agreement, which is attached as APPENDIX A to this Proxy Statement and is
incorporated herein by reference. All shareholders should read the Merger
Agreement carefully.

MECHANICS OF THE MERGER

         The Board of Directors of T-NETIX proposes to combine the operations of
T-NETIX and Gateway. The combination will be structured as a merger of TAC with
and into Gateway. Gateway will survive the Merger, and will be a wholly owned
subsidiary of T-NETIX after the Merger. As a result of the Merger, the current
shareholders of Gateway (the "Gateway Shareholders") will become shareholders of
T-NETIX. Also, those persons who currently hold options to purchase Gateway
Stock will exchange those options for options to purchase T-NETIX Stock. The
status of the current shareholders and option holders of T-NETIX will remain the
same.

         Please complete and sign the enclosed Proxy Card and send it to T-NETIX
in the postage-paid return envelope which has been provided to you so that your
shares of T-NETIX Stock will be represented and voted at the Special Meeting.
You do not need to send in your T-NETIX Stock certificates. The Merger will be
consummated at a closing (the "Closing") to be held when all conditions to
consummation of the Merger have been satisfied or waived. The Closing is
scheduled for March 31, 1999.

BACKGROUND OF THE MERGER

         In October 1998, Mr. Alvyn A. Schopp, then President of T-NETIX's
Inmate Calling Services Division, called Mr. Richard E. Cree, President and CEO
of Gateway, to discuss the possibility of a merger of the two companies. Mr.
Cree and Mr. Schopp had previously discussed the potential of a merger on two
previous occasions, in October 1996 when the companies successfully negotiated a
cross-licensing agreement for some of their respective intellectual property
rights in settlement of litigation, and in March 1997, during a phone
conversation between Mr. Cree and Mr. Schopp. Neither of these previous
conversations resulted in any substantive discussions between the companies.

         However, in October 1998, changes in the regulatory climate and
consolidation in the industry among the two companies' competitors and customers
made it more attractive for the management and Board of Directors of each
company to explore the opportunities created by a merger of the companies. Both
Mr. Schopp and Mr. Cree met with their respective Boards of Directors and
explained the potential benefits of such a merger. Each Board authorized Mr.
Cree and Mr. Schopp, respectively, to pursue additional negotiations.

         The T-NETIX Board engaged Broadview International LLC ("Broadview") to
assist Mr. Schopp in the structuring of a transaction. Mr. Schopp and Mr. Cree
then met several times in Albuquerque, Dallas and Denver to discuss terms. In
December 1998, Mr. Dan Carney (then a director of T-NETIX, now Chairman of the
Board) and Mr. Schopp, accompanied by Mr. Holt Thrasher of Broadview, met with
Mr. James Franklin, Mr. W. P. Buckthal and Mr. Cree of Gateway to discuss the
potential benefits of a merger.

         Mr. Cree was assisted in the negotiations by Messrs. Franklin, Buckthal
and Irwin Wall, all shareholders of Gateway, and various legal counsel and
financial advisors. Mr. Schopp was assisted by Mr. Carney, Mr. Martin Hart and
Mr. Jim Mann, all members of the T-NETIX Board, and various legal counsel and
financial advisors.

         The discussions led to negotiation and preparation of a definitive
agreement. The T-NETIX Board met on Monday, February 8, 1999, and approved the
terms of the Merger Agreement. Gateway's Board of Directors met on Wednesday,
February 10, 1999, and approved the terms of the Merger Agreement. T-NETIX
received a fairness opinion from Broadview on Wednesday, February, 10, 1999, and
the Merger Agreement was executed on the same day.



                                     - 12 -

<PAGE>   20




REASONS FOR THE MERGER; RECOMMENDATION OF THE BOARD

         The Board of Directors believes that the Merger offers the following
significant strategic and financial benefits to T-NETIX and its shareholders:

         o        COMPLEMENTARY PRODUCT OFFERINGS

                  By combining two companies with complementary product lines,
                  the T-NETIX Board believes that the Merger will create one of
                  the nation's leading specialized call processors with a
                  broader product range, stronger business prospects and greater
                  market diversification than either company could accomplish
                  alone. The T-NETIX Board believes that through T-NETIX's and
                  Gateway's combined customer relationships, technical
                  expertise, sales forces and cross knowledge in the inmate
                  calling services market, the combined company will be better
                  able to provide value to its customer base.

         o        CONSOLIDATION OF INTELLECTUAL PROPERTY

                  Over the years, the two companies have developed overlapping
                  and complementary intellectual property related to inmate
                  calling services. In October 1996, in settlement of litigation
                  between the companies, the companies cross-licensed
                  significant aspects of their intellectual property to each
                  other. After the combination of T-NETIX and Gateway, the
                  combined company will own what the T-NETIX Board believes will
                  be a formidable portfolio of call processing intellectual
                  property in areas such as automated operator, three-way
                  calling, integrated recording and monitoring, call blocking
                  and speaker verification features. The T-NETIX Board believes
                  this will increase the combined company's competitiveness even
                  more.

         o        COMPLEMENTARY CUSTOMER BASES AND SERVICE OFFERINGS

                  While the T-NETIX Board believes T-NETIX has strong
                  relationships with certain of the Regional Bell Operating
                  Companies and major inter-exchange carriers, neither T-NETIX
                  nor Gateway has relationships with all the Regional Bell
                  Operating Companies. The T-NETIX Board believes that a
                  combined Gateway and T-NETIX will have strong relationships
                  with all the Regional Bell Operating Companies which will
                  provide significant cross-selling opportunities. Gateway has
                  developed products and expertise in the area of direct
                  contract sales. This expertise will be offered to T-NETIX's
                  existing customers. Additionally, T-NETIX has an extensive
                  online frame relay network that Gateway will be able to offer
                  its customer base. The volume of the billable calls that the
                  combined company will process should allow the combined
                  company to achieve savings in billing and collection
                  activities.

         o        LARGER DIRECT SALES FORCE

                  Traditionally, T-NETIX has maintained a smaller sales force
                  because T-NETIX's mission has been to sell to
                  telecommunications carriers (such as the Regional Bell
                  Operating Companies and inter-exchange carriers) and only
                  assist in the contracts with the correctional facilities.
                  Gateway has maintained a more extensive sales force, selling
                  products and services directly to the correctional facilities.
                  The T-NETIX Board expects the combination of the sales forces
                  to allow the combined company to sell broad-based services to
                  the telecommunications carriers, and to provide products
                  directly to the correctional facilities. Additionally, the
                  Gateway direct sales force will be able to add T-NETIX's
                  Containsm product line to their product portfolio. This
                  product was acquired by T-NETIX with its December 31, 1998,
                  acquisition of Cell-Tel Monitoring Inc., now T-NETIX
                  Monitoring Corp., and the Merger will increase the number of
                  people selling the parole, probation and Containsm product
                  lines from four to approximately twenty-four people without
                  significant incremental costs.



                                     - 13 -

<PAGE>   21




         o        GREATER VISIBILITY IN THE INVESTMENT COMMUNITY

                  The T-NETIX Board believes that the increased market
                  capitalization, revenue base and competitiveness of the
                  combined company will create greater visibility in the
                  investment community and will provide all shareholders greater
                  liquidity for their shares, thereby enhancing the stock's
                  attractiveness to current and prospective shareholders.

         o        ENHANCED FINANCIAL RESOURCES

                  The T-NETIX Board believes that the combined company's
                  increased revenue base will enhance the combined company's
                  ability to raise any capital necessary to finance future
                  growth from either cash flow or third parties.

          In reaching its conclusions, the T-NETIX Board considered the factors
described above, including the presentation of its financial advisor. In
reaching its decision to approve the Merger and to recommend the matter
submitted to shareholders for approval in connection with the Merger, the
T-NETIX Board did not assign any relative or specific weights to the various
factors considered, and individual directors may have given differing weights to
different factors.

         The foregoing discussion of our reasons for the Merger includes
forward-looking statements about possible or assumed future results of our
operations and the performance of the combined company after the Merger. For a
discussion of factors that could affect these future results, see "Cautionary
Statement Concerning Forward-Looking Statements" on page 50 and "Risk Factors"
on page 25.

Fairness Opinion

         T-NETIX engaged Broadview to act as its financial advisor and requested
that Broadview render an opinion regarding the fairness, from a financial point
of view, to T-NETIX's shareholders, of the Merger Consideration to be paid by
T-NETIX. On Wednesday, February 10, 1999, Broadview rendered its written opinion
(the "Broadview Opinion") that, as of February 10, 1999, based upon and subject
to the various factors and assumptions set forth in the Broadview Opinion, the
Merger Consideration was fair, from a financial point of view, to the T-NETIX
shareholders. The consideration to be paid by T-NETIX in the Merger was
determined pursuant to negotiations between T-NETIX and Gateway as well as in
discussions with Broadview.

         The text of the Broadview Opinion, which sets forth assumptions made,
matters considered, and limitations on the review undertaken, is attached as
APPENDIX B to this Proxy Statement. T-NETIX shareholders are urged to read the
Broadview Opinion carefully in its entirety. The Broadview Opinion addresses
only the fairness of the Merger Consideration from a financial point of view and
does not constitute a recommendation to any T-NETIX shareholder as to how such
shareholder should vote on the Merger. Broadview employed a number of
methodologies and sources of information, both qualitative and quantitative, to
determine the fairness of the Merger Consideration from a financial point of
view. These included, but were not limited to, analyses of other comparable
public companies and comparable transactions. In addition, Broadview will
receive a fee from T-NETIX contingent upon successful conclusion of the Merger.
The summary of the Broadview Opinion set forth in this Proxy Statement is
qualified in its entirety by reference to the full text of such opinion.

         In rendering its opinion, Broadview, among other actions: (i) reviewed
the terms of the Merger Agreement and the exhibits thereto in substantially
final form; (ii) reviewed the audited financial statements of Gateway for its
fiscal years ended December 31, 1997 and 1996, and the unaudited financial
statements of Gateway for the eleven months ended November 30, 1998; (iii)
reviewed certain internal financial and operating information, including certain
projections, relating to Gateway prepared by Gateway management; (iv)
participated in discussions with Gateway management concerning the operations,
business strategy, financial performance and prospects for Gateway; (v)
discussed with Gateway management its view of the strategic rationale for the
Merger; (vi) compared certain aspects of the financial performance of Gateway
with public companies Broadview deemed


                                     - 14 -

<PAGE>   22


comparable; (vii) analyzed available information, both public and private,
concerning other mergers and acquisitions Broadview believed to be comparable in
whole or in part to the Merger; (viii) reviewed T-NETIX's annual report on Form
10-K for its fiscal year ended July 31, 1998, including the audited financial
statements included therein, and T-NETIX's Form 10-Q for the quarterly period
ended October 31, 1998, including the unaudited financial statements included
therein; (ix) participated in discussions with T-NETIX management concerning the
operations, business strategy, financial performance and prospects for T-NETIX;
(x) reviewed the recent reported closing prices and trading activity for T-NETIX
Stock; (xi) discussed with T-NETIX's management its view of the strategic
rationale for the Merger; (xii) compared certain aspects of the financial
performance of T-NETIX with public companies Broadview deemed comparable; (xiii)
considered the total number of shares of T-NETIX Stock outstanding and the
average weekly trading volume of T-NETIX Stock; (xiv) reviewed equity analyst
reports covering T-NETIX; (xv) analyzed the anticipated effect of the Merger on
the future financial performance of the consolidated entity; (xvi) reviewed an
independent evaluation and study of the products of Gateway and T-NETIX
performed by Gate-Net Associates and commissioned by the managements of Gateway
and T-NETIX; (xvii) assisted in negotiations and discussions related to the
Merger among T-NETIX, Gateway and their accounting and legal advisors; and
(xviii) conducted other financial studies, analyses and investigations as
Broadview deemed appropriate for purposes of its opinion.

         In rendering the Broadview Opinion, Broadview relied, without
independent verification, on the accuracy and completeness of all the financial
and other information (including without limitation the representations and
warranties contained in the Merger Agreement) that was publicly available or
furnished by T-NETIX or Gateway. Broadview assumed that those projections
prepared and provided by the managements of T-NETIX and Gateway were reasonably
prepared and reflected the best available estimates and good faith judgments as
to the future performance of T-NETIX and Gateway, respectively. Broadview did
not make nor obtain an independent appraisal or valuation of any of Gateway's or
T-NETIX's assets. With regard to any analyses relating to valuations of
comparable public companies, the share prices used were for the close of trading
on February 9, 1999, the last trading day before delivery of the Broadview
Opinion.

         The following is a summary explanation of the various sources of
information and valuation methodologies employed by Broadview in conjunction
with rendering the Broadview Opinion regarding the proposed Merger (dollars in
thousands).

         Public Company Comparables Analysis. Total Market
Capitalization/Revenue ("TMC/R"), Total Market Capitalization/Earnings Before
Interest, Taxes, Depreciation and Amortization ("TMC/EBITDA"), Price/Earnings
("P/E") and Price/Forward Growth Adjusted EPS ("Forward PEG") multiples indicate
the value public markets place on companies in a particular market segment.
Several public companies are comparable to Gateway based on market focus,
business model and financial performance. Broadview reviewed six public company
comparables in the telecom software and services segment of the Information
Technology ("IT") market providing call processing services and equipment and
payphone services, with Trailing Twelve Month ("TTM") revenue less than $150
million, with TTM revenue growth between 10%-50%, and EBITDA margins between
5%-30%, from a financial point of view including each company's: TTM Revenue;
TTM Revenue Growth; TTM EBITDA Margin, TTM EBIT Margin; TTM Net Margin, Equity
Market Capitalization; TTM TMC/R ratio; TTM TMC/EBITDA ratio; TTM P/E ratio;
TMC/Projected Calendar 1999 Revenue ratio ("Forward 1999 TMC/R");
Price/Projected Calendar 1999 Earnings ratio ("Forward 1999 P/E"); and Forward
calendar year ("CY") 1999 PEG ratio. The public company comparables were
selected from the Broadview Barometer, a proprietary database of publicly-traded
IT companies maintained by Broadview and broken down by industry segment. In
order of descending TTM TMC/R, the public company comparables consist of: (i)
Transaction Network Services, Inc.; (ii) T-NETIX, Inc.; (iii) ChoiceTel, Inc.;
(iv) Boston Communications Group, Inc.; (v) Periphonics Corporation; and (vi)
Brite Voice Systems, Inc.

         The aggregate set of comparables has a TTM TMC/R ratio range of 0.70 to
3.40 with a median of 1.54; TTM TMC/EBITDA ratio range of 7.12 to 14.98 with a
median of 10.32; TTM P/E ratio range of 28.11 to 36.17 with a median of 31.04;
Forward 1999 TMC/R ratio range of 0.57 to 1.68 with a median of 1.10; Forward
1999


                                     - 15 -

<PAGE>   23




P/E ratio range of 9.58 to 33.04 with a median of 19.36; and Forward CY 1999 PEG
ratio range of 0.49 to 1.23 with a median of 0.95.

         The equity value range implied by the TTM TMC/R multiples is $6,230 to
$70,674 with a median implied value of $26,538. The equity value range implied
by the TTM TMC/EBITDA multiples is $8,226 to $28,898 with a median implied value
of $16,645. The equity value range implied by the TTM P/E multiples is $11,847
to $15,247 with a median implied value of $13,084. The equity value implied by
the Forward 1999 TMC/R multiples is $6,099 to $38,116 with a median implied
value of $21,278. The equity value implied by the Forward 1999 P/E multiples is
$6,272 to $21,621 with a median implied value of $12,673. The equity value
implied by the Forward 1999 PEG multiples is $7,937 to $19,703 with a median
implied value of $15,269.

         Evaluation of T-NETIX Equity. Broadview compared selected valuation
multiples for public companies deemed comparable to T-NETIX based upon business
model, market focus and product offering, with the multiples implied by
T-NETIX's February 9, 1999, share price of $5.88. Broadview reviewed five public
companies in the telecom software and services industry with TTM revenue less
than $150 million, with TTM revenue growth between 10%-50%, and EBITDA margins
between 5%-30%, from a financial point of view. In order of descending TTM
TMC/R, the public company comparables consist of: (i) Transaction Network
Services, Inc.; (ii) Boston Communications Group, Inc.; (iii) ChoiceTel, Inc.;
(iv) Periphonics Corporation; and (v) Brite Voice Systems, Inc.

         Transaction Comparables Analysis. Valuation statistics from transaction
comparables indicate the Adjusted Price/Revenue ("P/R") multiple that acquirers
have paid for comparable companies in a particular market segment. Broadview
reviewed eight comparable public and private company merger and acquisition
("M&A") transactions from January 1, 1996 through the present involving sellers
sharing many characteristics with Gateway including products offered, business
model and market focus. Transactions were selected from Broadview's proprietary
database of published and confidential M&A transactions in the IT industry.
These transactions represent eight sellers in the telecom software and services
segments of the IT market providing call processing services and equipment and
payphone services, with TTM revenue between $5 million and $250 million. In
order of descending P/R multiple, the eight public and private company
transactions used are the acquisitions of: (i) SDX Business Systems plc by
Lucent Technologies Inc.; (ii) Phonetel Technologies Inc. by Davel
Communications Group Inc.; (iii) Peoples Telephone Co. by Davel Communications
Group Inc.; (iv) USLD Communications Corp. by LCI International; (v) Plessey
Corp. Ltd. By Dimension Data Holdings Ltd.; (vi) Correctional Communications
Corp. by Talton Holdings Inc.; (vii) Communications Central Inc. by Davel
Communications Group Inc.; and (viii) Peoples Telephone Co. (Inmate Division) by
Talton Holdings Inc. The P/R multiples of the eight public and private seller
transactions range from 0.73 to 2.33 with a median of 1.33.

         The equity value range implied by the P/R multiples of the eight public
and private seller transaction comparables is $11,391 to $59,189 with a median
implied value of $29,202.

         Relative Contribution Analysis. A relative contribution analysis
measures each of the merging companies' contributions to various income
statement and balance sheet metrics such as Revenue, EBITDA, EBIT, Net Income
and Assets on a percentage basis. Broadview examined the relative contributions
during CY 1998 and CY 1999 based upon projections for T-NETIX and Gateway
prepared by managements of the two companies, for each of the following: (i)
Revenue; (ii) EBITDA; (iii) EBIT; (iv) Net Income; (v) Total Assets; (vi)
Property Plant & Equipment, Net ("PP&E"); (vii) Net Assets; and (viii)
Shareholders' Equity.

         Gateway's relative contribution to Revenue for CY 1998 and CY 1999 is
44.5% and 47.4%, respectively. Gateway's relative contribution to EBITDA for CY
1998 and CY 1999 is 30.7% and 29.7%, respectively. Gateway's relative
contribution to EBIT for CY 1998 and CY 1999 is 100.0% and 41.8%, respectively.
Gateway's relative contribution to Net Income for CY 1998 and CY 1999 is 100.0%
and 33.4%, respectively. Gateway's relative contribution to Total Assets for the
latest available balance sheet is 26.9%. Gateway's relative contribution to PP&E
is 19.4%. Gateway's relative contribution to Net Assets is 22.0%. Gateway's
relative contribution to Shareholders' Equity is 13.2%.


                                     - 16 -

<PAGE>   24




         Relative Ownership Analysis. A relative ownership analysis measures
each of the merging companies' relative equity ownership and relative entity
values (net of cash). At the Merger Consideration defined in the Agreement of
5.0375, the implied equity ownership is 32.2% for Gateway and 67.8% for T-NETIX,
while the implied entity ownership is 34.4% for Gateway and 65.6% for T-NETIX.

         Stock Performance Analysis. Broadview examined the following: (i)
T-NETIX's actual share price and trading volume from February 10, 1998 to
February 9, 1999; and (ii) an index of the aggregate set of public company
comparables vs. T-NETIX and the S&P 500 index from February 6, 1998 to February
9, 1999.

         Pro Forma Combination Analyses. A pro forma merger analysis calculates
the EPS accretion or dilution of the pro forma combined entity taking into
consideration various financial effects which will result from a consummation of
the merger. This analysis relies upon certain financial and operating
assumptions provided by management and publicly available data about Gateway and
T-NETIX. Broadview examined a pooling-of-interests scenario using synergy
assumptions provided by the management of T-NETIX. Based on this scenario, the
pro forma pooling model indicates EPS accretion to T-NETIX of 2.5(cent), or
14.9%, excluding acquisition expenses, for the fiscal year ending December 31,
1999 and EPS accretion to T-NETIX of 9.4(cent), or 22.5%, for the fiscal year
ending December 31, 2000.

         Present Value of Projected Share Price Analysis. Broadview calculated
the present value of the potential future share price of T-NETIX Stock on a
standalone and pro forma for a transaction basis using management projections
for the twelve months ending December 31, 1999, and the twelve months ending
December 31, 2000, discounted to February 9, 1999, at discount rates ranging
from 15.0% to 25.0% and including the discount rate calculated using T-NETIX's
equity cost of capital of 17.44% and the median capital-structure adjusted beta.
The potential future share price is calculated based on earnings estimates for
the twelve months ending December 31, 1999 and the twelve months ending December
31, 2000 and assumes a median TTM P/E multiple of 31.04, the median TTM P/E
multiple for Gateway's public company comparable set.

         Based on this analysis and the discount rate calculated using the
equity cost of capital, the per share valuation range implied by the present
value of the future share prices using management expectations for the twelve
months ending December 31, 1999 on a standalone basis is $2.92 to $5.84 with a
median value of $4.53 and on a pro forma basis is $3.36 to $6.71 with a median
value of $5.21. Based on this analysis and the discount rate calculated using
the equity cost of capital, the per share valuation range implied by the present
value of the future share prices using management expectations for the twelve
months ending December 31, 2000 on a standalone basis is $6.05 to $12.09 with a
median value of $9.38 and on a pro forma basis is $7.41 to $14.81 with a median
value of $11.49.

         Discounted Cash Flows Valuation Methodology. Broadview valued Gateway
based upon two different sets of free cash flow estimates over a period from the
date of valuation through December 31, 2003. In the first scenario, no operating
synergies are assumed and T-NETIX's terminal value was calculated based on
terminal growth rates of 5.0%, 6.0% and 7.0%. A discount rate of 16.18% was
applied after weighting of all factors both positively and negatively affecting
the riskiness of Gateway's cash flows. Using the 16.18% discount rate and the
assumed terminal growth rates, total equity values for Gateway are $5,709,
$7,262 and $9,154, respectively.

         In the second scenario, Broadview assumed operating synergies based on
input from T-NETIX management and T-NETIX's terminal value was calculated based
on terminal growth rates of 5.0%, 6.0% and 7.0%. A discount rate of 16.18% was
applied after careful weighting of all factors both positively and negatively
affecting the riskiness of Gateway's cash flows. Using the 16.18% discount rate
and the assumed terminal growth rates, total equity values for Gateway are
$30,501, $33,605 and $37,384, respectively.

         Summary of Valuation Analyses. Taken together, the information and
analyses employed by Broadview lead to Broadview's overall opinion that the
Merger Consideration is fair, from a financial point of view, to T-NETIX
shareholders.


                                     - 17 -

<PAGE>   25




Recommendation of the Board of Directors

         At a special meeting of the T-NETIX Board held on February 8, 1999, the
Board determined the Merger to be fair to and in the best interests of T-NETIX
and its shareholders. Accordingly, the T-NETIX Board has unanimously approved
and adopted the Merger Agreement, approved the Merger, including the issuance of
T-NETIX Stock in the Merger, and unanimously recommends that T-NETIX
shareholders vote FOR the proposal to issue up to 4,231,315 shares of T-NETIX
Stock to Gateway Shareholders in the Merger, and to amend the Plans to increase
the number of shares available to be optioned under the Plans from 2,000,000 to
2,600,000.

TERMS OF THE MERGER AGREEMENT

         It is presently anticipated that the Merger will be consummated on or
about March 31, 1999, assuming all the conditions set forth in the Merger
Agreement have been satisfied or waived; however, it is possible that the Merger
will be consummated later.

Operation of the Merger

         When all conditions to consummation of the Merger have been satisfied,
or have been waived by the party that has the right to require that the
conditions be satisfied, TAC will merge with and into Gateway. TAC will then no
longer exist as a separate entity, and Gateway will survive the Merger and
continue to exist as a separate entity (the "Surviving Corporation"). Gateway
will be a wholly owned subsidiary of T-NETIX. All of this will occur by
operation of law when Articles of Merger are filed with the Colorado and Texas
Secretaries of State (the "Effective Time").

Consideration for Shares of Gateway Stock

         At the Effective Time, each share of Gateway Stock, other than shares
held by Gateway Shareholders who dissent from the Merger and do not forfeit
their appraisal rights ("Dissenting Shareholders"), will be converted into the
right to receive 5.0375 shares of T-NETIX Stock (the "Merger Consideration"). In
addition, each certificate which prior to the Effective Time represented Gateway
Stock (each, a "Certificate") will represent the right to receive the Merger
Consideration multiplied by the number of shares of Gateway Stock formerly
represented by such Certificate. Fractional shares will not be issued, and in
lieu thereof T-NETIX will pay cash in an amount equal to the average closing
price of T-NETIX Stock for the five trading days immediately prior to the
Closing Date, times the applicable fraction of a share.

         Also at the Effective time, all outstanding options to purchase Gateway
Stock (the "Gateway Options") will be exchanged for options to purchase T-NETIX
Stock (the "T-NETIX Options"). The T-NETIX Options will be issued pursuant to
T-NETIX's Non-Qualified Stock Option Plan, which is already in existence. For
each one (1) share of Gateway Stock underlying a Gateway Option, there will be
5.0375 shares of T-NETIX Stock underlying the T-NETIX Option exchanged therefor.
In addition, the exercise price for each T-NETIX Option will be equal to the
exercise price for the Gateway Option exchanged therefor divided by 5.0375. Each
T-NETIX Option will have the same vesting schedule and the same terms as the
Gateway Option exchanged therefor. Any T-NETIX Option that is exchanged for a
Gateway Option that is fully vested immediately prior to the Effective Time will
be fully vested from and after the Effective Time.

         A group of 15 Gateway Shareholders owning approximately 85% of the
outstanding Gateway Stock (the "Royalty Owners") currently has a royalty
agreement (the "Royalty Agreement") with Gateway relating to certain technology
licensed to Gateway. In exchange for their terminating the Royalty Agreement,
T-NETIX will issue to the Royalty Owners (pro rata in accordance with their
respective royalty interests) a total of 375,339 shares of T-NETIX Stock. Use of
the pooling of interests accounting method is conditioned on termination of the
Royalty Agreement.

         The amount of the Merger Consideration is subject to adjustment. If on
the Closing Date Gateway's indebtedness (as defined in the Merger Agreement)
exceeds $10,500,000 (plus certain adjustments), the Merger


                                     - 18 -

<PAGE>   26




Consideration will be reduced by that number of shares of T-NETIX Stock equal to
the excess of Gateway's indebtedness over the maximum indebtedness allowed under
the Merger Agreement, divided by $6.00 (the average closing price of T-NETIX
Stock for the five trading days immediately prior to February 10, 1999) divided
by the number of shares of Gateway Stock outstanding immediately before the
Effective Time (other than shares held by Dissenting Shareholders). The number
of shares of T-NETIX Stock underlying T-NETIX Options to be exchanged for
Gateway Options as described above will be equally reduced, and the exercise
price equally increased.

         As of February 10, 1999, there were 729,004 shares of Gateway Stock
outstanding and 8,558,067 shares of T-NETIX Stock outstanding. As of February
10, 1999, options to purchase 69,040 shares of Gateway Stock were outstanding,
and options to purchase 1,906,300 shares of T-NETIX Stock were outstanding.

Issuance of Shares to Gateway Shareholders

         The Closing will be held at the offices of Rothgerber Johnson & Lyons
LLP in Denver, Colorado, at 9:00 a.m. (local time) on March 31, 1999, the
"Closing Date." At the Closing, from the aggregate of the Merger Consideration,
T-NETIX will deduct and hold back shares of T-NETIX Stock which represent 5% of
the aggregate Merger Consideration (such shares are called the "Gateway Holdback
Shares"). T-NETIX will also reserve and set aside additional shares of T-NETIX
Stock equal in number to the Gateway Holdback Shares (such shares are called the
"T-NETIX Reserve Shares"). The T-NETIX Reserve Shares will not be deducted from
the aggregate Merger Consideration.

Indemnification Claims

         Under the Merger Agreement, T-NETIX will indemnify and hold harmless
the Gateway Shareholders and their respective affiliates, officers, directors,
partners, stockholders, agents, representatives, consultants and employees, and
all of their respective heirs, successors and permitted assigns (collectively,
the "Shareholder Indemnified Parties"), from and against certain expenses and
losses which result from or arise out of or as to which there was any breach or
inaccuracy of any representation, warranty, statement, certification, agreement,
obligation or covenant made by T-NETIX in the Merger Agreement or certain
related documents.

         Likewise, the Gateway Shareholders will severally, proportionately in
accordance with their interests, indemnify and hold harmless T-NETIX and its
affiliates and their respective officers, directors, shareholders, agents,
representatives, consultants, employees and affiliates, and all of their
respective heirs, successors and permitted assigns (collectively, the "T-NETIX
Indemnified Parties"), from and against certain expenses and losses which result
from or arise out of or as to which there was any breach or inaccuracy of any
representation, warranty, statement, certification, agreement, obligation or
covenant made by Gateway in the Merger Agreement or in certain related
documents.

         Except in the event of a knowing and willful misrepresentation, the
total amount of indemnification payments that T-NETIX may be required to make to
the Shareholder Indemnified Parties is limited in the aggregate to the T-NETIX
Reserve Shares.

         Likewise, except in the event of a knowing and willful
misrepresentation, the total amount of indemnification payments that the Gateway
Shareholders may be required to make to the T-NETIX Indemnified Parties is
limited in the aggregate to the Gateway Holdback Shares.

         No indemnification payment will be required to be made unless a claim
for indemnification is made on or prior to the earlier of (1) the first
anniversary of the Closing Date or (2) the date of publication of the first
annual combined audited financial statements of Gateway and T-NETIX.

         Except for willful, knowing or intentional misrepresentations in the
Merger Agreement, no indemnification payment will be required to be made by
either T-NETIX or the Gateway Shareholders unless and until the aggregate amount
claimed exceeds $500,000. For the purpose of any indemnification claim, the
Gateway


                                     - 19 -

<PAGE>   27




Holdback Shares or the T-NETIX Reserve Shares, as the case may be, shall be
valued at the average closing price of T-NETIX Stock for the five trading days
immediately preceding satisfaction of the claim.

         On the earlier of the first anniversary of the Closing Date, the date
of publication of combined annual audited financial statements of Gateway and
T-NETIX, or a date mutually agreed on by representative of the Gateway
Shareholders and T-NETIX, and subject to the certain terms of the Merger
Agreement, (i) any remaining Gateway Holdback Shares having a value in excess of
the amount of any indemnification claims of T-NETIX will be issued to Gateway
Shareholders, and (ii) any remaining T-NETIX Reserve Shares having a value in
excess of the amount of any indemnification claims of the Gateway Shareholders
will not be issued to the Gateway Shareholders, but instead will remain
authorized but unissued T-NETIX Stock, and will no longer be reserved and set
aside pursuant to the Merger Agreement.

Covenants in the Merger Agreement

         The Merger Agreement contains covenants of T-NETIX and Gateway designed
to ensure that the parties proceed toward and do not hinder consummation of the
Merger. These covenants include the following:

         (a)      Each company will provide the other with access to its records
                  and other internal information;

         (b)      Each company will not disclose certain confidential
                  information of the other company;

         (c)      Each company will use commercially reasonable efforts to do
                  all things necessary or desirable to consummate the Merger;

         (d)      Each company will provide additional disclosure to the other
                  if a change in circumstances causes any of such company's
                  representations and warranties in the Merger Agreement to
                  become untrue, misleading or inaccurate;

         (e)      T-NETIX will use commercially reasonable efforts to draft this
                  Proxy Statement and have it filed with the Securities and
                  Exchange Commission (the "SEC"), and Gateway will cooperate
                  with T-NETIX in doing so and will promptly provide true and
                  accurate information to T-NETIX for inclusion herein;

         (f)      Gateway will cause, or will use its best efforts to cause,
                  certain directors, officers and other insiders to execute
                  certain letters by which such persons agree to the
                  restrictions on selling T-NETIX Stock applicable to such
                  persons pursuant to SEC Rule 145 under the Securities Act of
                  1933, as amended (the "Securities Act"), and pursuant to the
                  pooling of interest accounting rules. Also, T-NETIX will
                  cause, or use its best efforts to cause, certain directors,
                  officers and other insiders to execute certain letters by
                  which such persons agree to the restrictions on selling
                  T-NETIX Stock applicable to such persons under the pooling of
                  interests accounting rules;

         (g)      Each company will not make any public announcement of the
                  Merger without the written consent of the other, unless such
                  announcement is required by law and the announcing company
                  provides notice to the other company a reasonable time prior
                  to making the announcement of the nature and content of the
                  announcement, and consults with the other company regarding
                  such nature and content;

         (h)      Each company will take steps to ensure that the pooling of
                  interests method of accounting for the Merger will be
                  applicable to the Merger (See "--Accounting Treatment");

         (i)      Each company will use commercially reasonable efforts to make
                  all filings required to be made so that the Merger can occur,
                  and to obtain all consents that are required for the Merger to
                  occur;


                                     - 20 -

<PAGE>   28




         (j)      Each company will cooperate with the other in filing a notice
                  with the Federal Trade Commission (the "FTC") under the
                  Hart-Scott-Rodino Antitrust Improvements Act of 1976 (the "HSR
                  Act"), and seek early termination of any waiting periods
                  thereunder. See "--HSR Act and Other Antitrust Matters;"

         (k)      Each company, its officers and directors, the Gateway
                  shareholders who signed the Merger Agreement and the
                  shareholders of T-NETIX who signed the Merger Agreement will
                  not, and each company will direct and use its best efforts to
                  cause its employees, agents and representatives to not, except
                  to the extent that the Board of Directors concludes in good
                  faith that it is legally required for the discharge by the
                  Board of Directors of its fiduciary duties: (i) sell or
                  arrange for the sale of any of such company's capital stock;
                  or (ii) negotiate, solicit or encourage or authorize any
                  person to solicit from any third party any proposals relating
                  to a change of control of such company, which means the merger
                  or consolidation of the company, disposition of the business
                  or all or substantially all the assets of the company or the
                  sale of a total of 50% or more of the capital stock of the
                  company; or (iii) make any information concerning such company
                  available to any person for the purpose of affecting or
                  causing a change of control of such company. These provisions
                  do not apply to any merger in which the company is the
                  surviving corporation and the current shareholders of such
                  company are the holders of at least two-thirds of the voting
                  power and economic benefits of the company immediately
                  following the merger;

         (l)      In the event either company receives any solicitation,
                  proposal or offer from any person relating to a change of
                  control of such company, the company will promptly give
                  written notice to the other company of such event; and

         (m)      T-NETIX will publish financial results covering at least 30
                  days of combined operations of T-NETIX and Gateway as soon as
                  practicable after consummation of the Merger.

         The Merger Agreement also contains provisions regarding how each
company will conduct its business from the time the Merger Agreement was signed
until the Closing Date. These provisions include the following:

         (1)      Gateway will not allow its indebtedness, as defined in the
                  Merger Agreement, to exceed $10,500,000 plus certain
                  adjustments as of the Closing Date;

         (2)      Each company will not amend its Articles of Incorporation or
                  Bylaws; make any change in its practices, operations or
                  policies with respect to the selling goods or services,
                  collecting accounts receivable and/or paying accounts payable;
                  conduct its business in a manner that departs from the manner
                  in which such business was being conducted prior to signing of
                  the Merger Agreement; increase the rate or change the form of
                  compensation payable to any director or officer or increase
                  any employee benefits, except for normal increases consistent
                  with past practices; purchase or dispose of any properties or
                  other assets, except in the ordinary course of business;
                  declare, set aside, pay or make any dividend or other
                  distribution in respect of any of such company's outstanding
                  shares of capital stock; issue or sell any shares of such
                  company's capital stock (whether or not from the treasury) or
                  any other securities; grant any options, convertibility
                  rights, rights to subscribe for shares of capital stock or
                  securities convertible into or exchangeable for shares of
                  capital stock, warrants, calls or other agreements relating to
                  such company's capital stock; split up, combine, reclassify,
                  redeem, repurchase or otherwise reacquire any of such
                  company's capital stock, or otherwise change its
                  capitalization; except as required by regulation or generally
                  accepted accounting principles ("GAAP"), maintain its books of
                  account other than in the usual, regular and ordinary manner
                  on a basis consistent with prior periods, make any change in
                  any of its books, accounting methods or practices, or
                  reclassify any assets or liabilities; cancel, terminate, renew
                  or amend any material contract or enter into any contract,
                  agreement, lease, license or commitment, in each case outside
                  the ordinary course of business; invest in certificates of
                  deposit in any one bank if such investments in the aggregate
                  exceed $100,000 at


                                     - 21 -

<PAGE>   29




                  any time; incur any direct or contingent liability for
                  borrowed money or guarantee the monetary obligations of any
                  other person or entity, or make any monetary investment in,
                  advance to or loan to any person or entity other than in the
                  ordinary course of business; fail to make maintenance
                  expenditures and maintain inventories in the amounts and at
                  the times required to operate its business in the ordinary
                  course consistent with past practice; implement or adopt any
                  change in its tax methods, principles or elections; fail to
                  pay accounts payable or collect accounts receivable in
                  accordance with past practices; fail to use best efforts to
                  ensure the retention of such company's key employees; enter
                  into any transaction outside the ordinary course of business;
                  or agree or commit to do any of the foregoing.

Conditions of the Merger Agreement

         Consummation of the Merger is subject to satisfaction or waiver of
various conditions, including compliance with respective covenants, confirmation
of certain representations and warranties, and the absence of any litigation or
regulatory proceeding presenting significant risk that the Merger will not be
consummated. Following are descriptions of other conditions to each company's
obligations to consummate the Merger:

         (a)      There having been no material adverse effect on Gateway since
                  November 30, 1998, and there having been no material adverse
                  effect on T-NETIX since October 31, 1998;

         (b)      All required approvals of shareholders and all other required
                  consents, approvals and other documents having been obtained
                  and delivered to the other company;

         (c)      Each company having received a legal opinion from counsel to
                  the other company;

         (d)      T-NETIX and certain employees of Gateway having executed
                  employment and non-competition agreements. See "--Employment
                  Agreements;"

         (e)      T-NETIX and certain Gateway Shareholders having executed
                  non-competition agreements;

         (f)      Each company having received an opinion from Rothgerber
                  Johnson & Lyons LLP, counsel to T-NETIX, as to the tax
                  consequences of the Merger;

         (g)      Each company having delivered to the other a Good Standing
                  Certificate along with a Tax Certificate, if appropriate, for
                  such company dated as of the Closing Date;

         (h)      T-NETIX having received from its independent accountants an
                  opinion that the Merger will qualify for treatment as a
                  pooling of interests under GAAP. See "--Accounting Treatment;"

         (i)      Any waiting period applicable to the Merger under the HSR Act
                  having expired or earlier termination thereof having been
                  granted and no action having been instituted by either the
                  United States Department of Justice (the "DOJ") or the FTC to
                  prevent the consummation of the Merger or to modify or amend
                  the same in any material manner. See "--HSR Act and Other
                  Antitrust Matters;" and

         (j)      Each company not learning of any matter which would represent
                  a material adverse effect on the other.

         Following are descriptions of additional conditions to T-NETIX's
obligation to consummate the Merger:

         (1)      Gateway having delivered a certificate, signed by the
                  secretary of Gateway, certifying current copies, as amended,
                  of the Articles of Incorporation and Bylaws of Gateway and the
                  resolutions of the Board of Directors and shareholders of
                  Gateway authorizing the Merger Agreement and the Merger;


                                     - 22 -

<PAGE>   30




         (2)      Each Gateway Shareholder having executed a letter by which
                  they agree to the restrictions on selling T-NETIX Stock
                  applicable to such persons pursuant to SEC Rule 144 under the
                  Securities Act;

         (3)      The Royalty Agreement having been duly and validly terminated
                  effective as of a date prior to the Effective Time for an
                  amount equal to no more than 375,339 shares of T-NETIX Stock;

         (4)      T-NETIX having received from Gateway audited financial
                  statements, including balance sheet and related statements of
                  operations, stockholders' equity and cash flows, including
                  notes thereto, as of and for the year ended December 31, 1998,
                  accompanied by the independent auditors' report of KPMG LLP,
                  independent certified public accountants, and such financial
                  statements do not reflect a material adverse effect on Gateway
                  since November 30, 1998; and

         (5)      Holders of less than 7% of the shares of Gateway Stock
                  outstanding exercising their dissenters' rights under Texas
                  law.

Termination of the Merger Agreement

         The Merger Agreement may be terminated prior to the Closing in any of
the following ways:

         (a)      By the mutual agreement of Gateway and T-NETIX;

         (b)      By either company at any time after May 31, 1999, if any
                  condition to that company's obligation to consummate the
                  Merger shall not have been satisfied or waived and that
                  company is not in material breach of the Merger Agreement;

         (c)      By either company if any updated disclosures from the other
                  party cause any representation or warranty of such other party
                  in the Merger Agreement to be inaccurate in any material
                  respect;

         (d)      By either company pursuant to its Board of Directors'
                  fulfillment of its fiduciary duty to such company's
                  shareholders by entering into a transaction in conflict with
                  the Merger Agreement.

         The following will take place upon termination of the Merger Agreement:

         (1)      Each company will promptly destroy or cause to be returned to
                  the other all confidential information of the other party;

         (2)      Each company will pay its own costs and expenses and neither
                  company will have any obligation or liability to the other
                  company, except that certain provisions in the Merger
                  Agreement regarding confidential information and public
                  announcements will remain binding.

         In the event that (i) either company effectuates a change of control in
conflict with the Merger Agreement; (ii) either company terminates the Merger
Agreement as a result of an intentional breach by the other company of a
representation, warranty or covenant of the Merger Agreement and within one year
following such termination the other company effectuates a change of control; or
(iii) either company does not take the steps required to consummate the Merger
when all conditions to that company's obligation to consummate the Merger have
been satisfied or waived, and within one year after the earliest date on which
such conditions were satisfied or waived that company effectuates a change of
control, then, in addition to any damages which may be available to the first
company, the other company will be required to pay $5,000,000 to the first
company.

Post-Closing Covenants

         Certain provisions of the Merger Agreement require that actions be
taken after the Closing. First, T-NETIX agrees to provide funding to Gateway
after the Closing for Gateway to pay its indebtedness when due.


                                     - 23 -

<PAGE>   31




Second, T-NETIX agrees that for purposes of vesting of employee benefits, in
calculating the term of service for employees of Gateway, T-NETIX will include
such person's term of service with Gateway as shown on Gateway's records for
such employee at the Effective Time. And third, T-NETIX agrees that Richard E.
Cree and W. P. Buckthal will be elected to the Board of Directors of T-NETIX
effective on the Closing Date. The term of Richard E. Cree's directorship will
expire at the 2001 annual meeting of the T-NETIX shareholders, and the term of
W. P. Buckthal's directorship will expire at the 2000 annual meeting of the
T-NETIX shareholders. In the event a vacancy occurs in the Board of Directors of
T-NETIX, the vacancy will be filled by an individual mutually agreed upon by
Messrs. Cree, Buckthal, Carney and Schopp.

Operation of Gateway and T-NETIX after the Merger

         Upon the consummation of the Merger, the separate corporate existence
of TAC will cease and Gateway will be a wholly owned subsidiary of T-NETIX.

         As the Surviving Corporation, Gateway will operate under its current
Articles of Incorporation and Bylaws until altered, amended, or repealed
pursuant to their terms or applicable law. The current officers of Gateway will
be the officers of Gateway as the Surviving Corporation. The current directors
of TAC will become the directors of Gateway as the Surviving Corporation. No
changes in the Articles of Incorporation, Bylaws, officers or directors of
T-NETIX will result from the Merger, except that Mr. Cree will be appointed as
Executive Vice President of T-NETIX.

Employment Agreements

         In connection with the Merger, T-NETIX will enter into an employment
agreement with Mr. Cree. The term of the agreement is three years, and it
provides for a base annual salary of $190,000. In addition, over a two-year
period Mr. Cree will receive options to purchase a total of 60,000 shares of
T-NETIX Stock, and will receive vacation time and other benefits commensurate
with this position. Mr. Cree will not receive compensation for his participation
on the Board of Directors of any subsidiary of T-NETIX. Under the employment
agreement, T-NETIX may terminate Mr. Cree's employment at any time, with or
without "cause" (as defined in the employment agreement). If, during the term of
the employment agreement, Mr. Cree is terminated without cause, or is terminated
because of a change of control of T-NETIX, he will receive certain severance
benefits. As part of the employment agreement, Mr. Cree will agree not to
disclose confidential information about T-NETIX to any third party, and not to
compete against T-NETIX, in each case for the duration of his employment with
T-NETIX plus three years.

         Also in connection with the Merger, T-NETIX will enter into employment
agreements with other employees of Gateway, none of whom will be executive
officers of T-NETIX.

RIGHTS OF DISSENTING SHAREHOLDERS

         Under Colorado law, T-NETIX shareholders do not have the right to
dissent from the Merger and, instead of participating in the Merger, receive the
appraised fair value of their shares. This is because T-NETIX stock is traded on
the Nasdaq National Market.

ACCOUNTING TREATMENT

         It is a condition to both companies' obligations to consummate the
Merger that the Merger will be accounted for as a pooling of interests. Under
this method of accounting, holders of Gateway Stock will be deemed to have
combined their existing interests with those of the holders of T-NETIX Stock by
exchanging their Gateway Stock for T-NETIX Stock. Accordingly, the book value of
the assets, liabilities and shareholders' equity of Gateway, as reported on its
balance sheet, will be carried over to the balance sheet of T-NETIX, and no
goodwill will be recorded. The results of operations of T-NETIX will include the
results of both T-NETIX and Gateway for the entire fiscal year in which the
Merger occurs and all prior years, as well; however, expenses incurred to effect


                                     - 24 -

<PAGE>   32




the Merger must be treated by the combined company as current charges against
income in the period in which the Merger occurs.

         The unaudited pro forma financial information contained in this Proxy
Statement has been prepared assuming the pooling of interests accounting method
is used to account for the Merger. See "Summary--Selected Unaudited Pro Forma
Combined Financial and Other Data," and "Unaudited Pro Forma Condensed Combined
Financial Information."

INTERESTS OF CERTAIN PERSONS IN THE MERGER

         Certain officers and directors of T-NETIX may have interests in the
Merger that are different from, or in addition to, and may conflict with the
interests of shareholders of T-NETIX generally. After T-NETIX issues stock
options to holders of Gateway options in the merger, there will be approximately
372,600 shares of T-NETIX Stock available to be optioned because of the
amendments to T-NETIX's stock option plans. T-NETIX's directors and officers
will be eligible to receive these options, although there are no specific plans
to grant options to them at this time.

HSR ACT AND OTHER ANTITRUST MATTERS

         Under the HSR Act and the rules and regulations thereunder, certain
transactions, including the Merger, may not be consummated unless a notice has
been filed with the FTC and the DOJ, and certain waiting period requirements
have expired or been terminated.

         The FTC and DOJ frequently scrutinize the legality under the antitrust
laws of transactions such as the Merger. At any time before or after the
Effective Time the FTC, the DOJ or others could take action under the antitrust
laws with respect to the Merger, including seeking to enjoin the consummation of
the Merger, to rescind the Merger or to require the divestiture of substantial
assets of T-NETIX or Gateway. While T-NETIX believes that the Merger is legal
under the antitrust laws, there can be no assurance that a challenge to the
Merger on antitrust grounds will not be made or, if such a challenge is made,
that it would not be successful.

         Under the Merger Agreement, T-NETIX and Gateway have agreed to use
their reasonable best efforts to obtain any governmental clearance required for
the Merger. On February ___, 1999, the companies filed the required notice with
the FTC and the DOJ. As of the date of this Proxy Statement, the required
waiting period has not yet expired or been terminated.


                                  RISK FACTORS

         In addition to other information in this document, please carefully
consider the following risk factors in evaluating the Merger. This section may
contain forward-looking statements that involve risks and uncertainties. The
words "anticipate," "believe," "effect," "estimate," "expect," "intend," "plan"
and similar expressions identify the forward-looking statements. T-NETIX's
actual results could differ materially from these forward-looking statements.
See "Cautionary Statement Concerning Forward-Looking Statements."

T-NETIX DEPENDS ON A FEW MAJOR CUSTOMERS

         T-NETIX depends a great deal on its relationships with certain
customers. For the year ended July 31, 1998, AT&T, Bell Atlantic, US WEST and
SBC Communications, Inc. accounted for approximately 31%, 21%, 15% and 15%,
respectively, of T-NETIX's total revenue. We anticipate that these customers
will represent a large portion of the combined company's total revenue in the
future. The loss of any of these four customers would have a material adverse
effect on the combined company's business, operating results and financial
condition.

         In addition, T-NETIX and Gateway rely a great deal on their customers
to obtain new contracts with correctional facilities. This limits both
companies' control over the competitive bidding process. The combined


                                     - 25 -

<PAGE>   33


company's revenue growth and stability will depend in large part on its ability
to enter into new, and renew existing contracts with its customers. We cannot
assure that the combined company will be able to do so, or that these customers
will not enter into similar agreements with others. Termination of one or more
of these contracts could have a material adverse effect on the combined company.

COMPETITION

         The telecommunications industry, particularly the inmate calling
market, is highly competitive. We believe it will remain competitive after the
Merger. We believe that the combined company's ability to compete in the inmate
calling industry depends on the quality and breadth of its turn-key service
offering, the capability of its technology, its ability to price its services at
competitive rates, and its relationships with key customers. Although the
combined company will have a large sales force, it will also rely on its
customers to market its services to correctional facilities. This will limit the
combined company's control over the marketing and bidding processes. Our
customers' decisions to offer less competitive solutions could have a material
adverse effect on the combined company.

SYSTEMS AND SERVICES MAY BECOME OBSOLETE

         The telecommunications industry experiences rapid technological
advancements, frequent new service introductions and changing industry
standards. We believe that the combined company's success will depend upon its
ability to anticipate and respond to such changes. Other companies may develop
technologies, services or standards which could render the combined company's
technology and systems obsolete. In addition, as the telecommunications networks
change, especially from analog-based to digital-based systems, certain features
that the combined company will offer may become less valuable. Also, regulatory
actions affecting the telecommunications industry may render the combined
company's service offerings obsolete. There can be no assurance that the
combined company will have sufficient technical, managerial or financial
resources to develop or acquire new technology or to introduce new services or
products that would meet customer needs in a timely fashion.

PROTECTION OF PROPRIETARY TECHNOLOGY

         The combined company's success depends in part on its proprietary
technology, particularly in the area of three-way call prevention. The combined
company will rely on laws and contracts to establish and protect its proprietary
rights in its systems. Such protection may not prevent competitors from
developing systems with features similar to the combined company's offerings.
Although the combined company intends to defend its intellectual property rights
vigorously, there can be no assurance that any measures taken to defend its
rights will be successful.

RISK OF INFRINGING ON EXISTING PATENTS

         We believe that the combined company's systems, trademarks, and other
proprietary rights do not infringe upon anyone else's valid proprietary rights.
Nevertheless, there can be no assurance that someone else will not assert
infringement claims against the combined company in the future. The cost of
defending against assertions of patent and trademark infringement could be
material, whether or not the assertions are valid.

THE RISKS ASSOCIATED WITH YEAR 2000 ISSUES

         If the combined company fails to resolve Year 2000 issues on or before
December 31, 1999, it could result in system failures or miscalculations. This
would disrupt operations, such as processing transactions, sending invoices,
sending and/or receiving e-mail and voice mail, or engaging in normal business
activities. Additionally, if any third parties upon whom the combined company's
business relies fail to timely resolve their Year 2000 issues, it could disrupt
the combined company's payments, supply of parts and materials, order processing
and other daily operations. While we believe the combined company's Year 2000
Project will adequately address its internal Year 2000 issues, until the
combined company receives responses from a significant number of it suppliers


                                     - 26 -

<PAGE>   34




and customers, the overall risks associated with the Year 2000 issue remain
difficult to accurately describe and quantify. The Year 2000 issue might have a
material adverse effect on the combined company and its operations.


                    DIVIDENDS AND PRICE RANGE OF COMMON STOCK

         T-NETIX has never paid dividends on T-NETIX Stock, and Gateway has
never paid dividends on Gateway Stock.

         Shares of T-NETIX Stock are traded on the Nasdaq National Market under
the symbol "TNTX." As of February 24, 1999, the Record Date, there were
approximately ___________ holders of record of T-NETIX Stock and __________
shares of T-NETIX Stock outstanding.

         On February 10, 1999, the last full trading day prior to the public
announcement of the signing of the Merger Agreement, the closing price on the
Nasdaq National Market of the T-NETIX Stock was $6.625 per share. On February
___, 1999, the most recent practicable date prior to the printing of this Proxy
Statement, the closing price on the Nasdaq National Market of the T-NETIX Stock
was $_________ per share.

         The following table sets forth the range of high and low closing price
information of shares of T-NETIX Stock as reported on the Nasdaq National Market
for the calendar quarters indicated. The information in the table has been
adjusted to reflect retroactively all applicable stock dividends and stock
splits.

<TABLE>
<CAPTION>
                                                           High     Low
                                                          ------  ------
<S>                                                       <C>     <C>   
Current Year
         First Quarter (ended 10-31-98).................  $ 9.19  $ 5.00
         Second (Transition) Quarter (11-1-98 to 
           12-31-98)....................................  $ 6.50  $ 4.50
         Current Quarter (1-1-99 to 2-10-99)............  $ 7.13  $ 4.75

Year Ended July 31, 1998

         First quarter..................................  $11.00  $ 6.88
         Second quarter.................................  $11.00  $ 8.38
         Third quarter..................................  $13.88  $ 9.38
         Fourth quarter.................................  $11.00  $ 8.00

Year Ended July 31, 1997
         First quarter..................................  $14.75  $ 8.50
         Second quarter.................................  $14.13  $ 9.25
         Third quarter..................................  $12.25  $ 7.00
         Fourth quarter.................................  $10.25  $ 6.75
</TABLE>

         Shares of Gateway Stock are not publicly traded, and no broker
maintains a public market for Gateway Stock. The most recent trade of Gateway
Stock of which Gateway management is aware was in April 1998, when 6,500 shares
were sold for $18.98 per share. As of February 20, 1999, the record date for the
special meeting of Gateway's shareholders relating to the Merger, there were
approximately ________________ holders of record of Gateway Stock and _______
shares of Gateway Stock outstanding.


                             DESCRIPTION OF T-NETIX

GENERAL

         T-NETIX provides specialized call processing services to the
telecommunications and other service industries. T-NETIX's primary customers
include AT&T, Bell Atlantic, US WEST, SBC Communications, Inc.,


                                     - 27 -

<PAGE>   35




BellSouth, MCI WorldCom and GTE. These customers use T-NETIX's products and
services to provide annually over 93,000,000 billable inmate collect calls in
over 800 correctional institutions. T-NETIX's products and services include
comprehensive transaction processing, call management and identification systems
for the corrections industry and special-purpose speech processing software and
systems. T-NETIX's current products are based on proprietary software, the most
critical of which is patented or patent pending, and a combination of
proprietary and "off-the-shelf" electronic hardware. These systems are designed
to be flexible delivery platforms which are easily integrated with T-NETIX's
customer's networks and information systems. T-NETIX's revenue stream is mostly
recurring, as a result of T-NETIX's generally charging for its services on a fee
per transaction processed basis over long-term contracts.

         At December 31, 1998, T-NETIX's assets were $48,663,000 and total
shareholders' equity was $26,320,000. For the fiscal year ended July 31, 1998,
T-NETIX's net income was $599,000.

DIRECTORS AND EXECUTIVE OFFICERS

         T-NETIX's Articles of Incorporation provide that the T-NETIX Board
shall be divided into three classes. Each class of directors consists of two or
three directors who are currently serving staggered three-year terms with one
class being elected each year. The Class I directors are James L. Mann, Mr.
Carney and Robert A. Geist, the Class II directors are Martin T. Hart and John
H. Burbank III and the Class III directors are Mr. Schopp and Daniel J. Taylor.
Because T-NETIX has changed its reporting year from a fiscal year ending July 31
to a calendar year, T-NETIX will not hold an annual meeting in 1999. T-NETIX's
next annual meeting will be in May of 2000. See "Shareholders' Proposals."
Therefore, the Class I directors will continue in office until the 2002 annual
meeting rather than the 2001 annual meeting as originally scheduled, the Class
II directors will continue in office until the 2000 annual meeting rather than
the 1999 annual meeting as originally scheduled, and the Class III directors
will continue in office until the 2001 annual meeting rather than the 2000
annual meeting as originally scheduled.

         Following is a list of the current directors and executive officers of
T-NETIX, including age (as of February 24, 1999), current positions held with
T-NETIX and terms of office.

<TABLE>
<CAPTION>
                                                                                  Director       Term to
Name                         Age           Position                               Since          Expire 
- - ----                         ---           --------                              --------       --------
<S>                          <C>           <C>                                   <C>            <C> 
Daniel M. Carney(1)           67           Chairman of the Board, Director         1991           2002
Alvyn A. Schopp               40           President, Chief Executive              1993           2001
                                           Officer and Director
John Giannaula                37           Vice President of Finance               N/A            N/A
                                           and Secretary
James L. Mann(1)(2)           64           Director                                1995           2002
Robert A. Geist(1)(2)         58           Director                                1994           2002
Martin T. Hart(2)             62           Director                                1997           2000
Daniel J. Taylor              55           Director                                1999           2001
John H. Burbank III           35           Director                                1999           2000
</TABLE>

- - ----------------------------
(1)      Member of the Compensation Committee.
(2)      Member of the Audit Committee.


         Mr. Carney became Chairman of the Board in December 1998 and has served
as a director of T-NETIX since 1991. Since 1977, Mr. Carney has been a private
investor. He co-founded Pizza Hut, Inc. in 1958 and served as Chairman of the
Board until 1975 and as a director through 1977 when Pizza Hut was acquired by
PepsiCo, Inc.

         Mr. Schopp has served as Chief Executive Officer since December 1998.
Prior to that, he served as Chief Financial Officer and Treasurer of T-NETIX
since 1993. He has also been a director of T-NETIX since 1993, and was named
Executive Vice President in August 1994. In April, 1997, he was named President
of the Inmate Calling Services Division. Prior to joining T-NETIX, he spent 13
years as an accountant with KPMG Peat Marwick.



                                     - 28 -

<PAGE>   36




         Mr. Giannaula has served as Vice President--Finance of T-NETIX since
June 1994 and as Secretary since July 1994. Prior to joining T-NETIX, he spent
10 years as an accountant with KPMG Peat Marwick. He is a Certified Public
Accountant in the State of Colorado.

         Mr. Mann became a director of T-NETIX in September 1995. Since 1986,
Mr. Mann has been the Chairman and Chief Executive Officer of SunGard Data
Systems, Inc., a provider of proprietary application software systems and
processing services for investment support activities and a provider of computer
disaster recovery services. From 1983 to 1986 he was SunGard's President and
Chief Operating Officer. From 1981 to 1983 he was President of Bradford National
Corporation, a computer services and software concern.

         Mr. Geist has served as a director of T-NETIX since August 1994. Since
1979, he has been Chairman of the Board and Chief Executive Officer of Rage
Administrative & Marketing Services, Inc., a management company for Pizza Hut
franchises. Since 1991, he has been a director of Beauty Warehouse, Inc. (a
franchiser of beauty salons and professional beauty products).

         Mr. Hart has served as a director of T-NETIX since 1997. Mr. Hart is a
Denver-based businessman and investor. Mr. Hart serves as a director of P.J.
America, a food service company, Pacific National Financial Group Bank, a bank
holding company, MassMutual Corporate Investors, an investment company,
MassMutual Participation Investors, an investment company, Optical Securities
Corporation, a manufacturer of security systems, Ardent Software, Inc., a data
management company, and Shuler Homes, Inc., a real estate development company.

         Mr. Taylor became a director of T-NETIX in February 1999. Since 1996,
Mr. Taylor has been a private investor. From 1983 to 1996, Mr. Taylor served as
chairman of the board of Advantage Companies, Inc., a rental- purchase store
holding company. From 1978 to 1983, Mr. Taylor was president and chairman of the
board of MFY Industries, Inc., a retail management operation. Prior to this, Mr.
Taylor was treasurer and a director of Pizza Hut, Inc. Mr. Taylor serves on the
board of directors of the Cerebral Palsy Research Foundation of Kansas, Inc. and
the Cerebral Palsy Endowment Association.

         Mr. Burbank became a director of T-NETIX in February 1999. Since 1996,
Mr. Burbank has been director of research at Valuevest Management Co., a global
value hedge fund. From 1993 to 1994, Mr. Burbank was a joint venture partner at
Odwalla, Inc., a beverage producer. Prior to this, Mr. Burbank was a financial
analyst at Dole Fruit International.

         The officers of T-NETIX hold office until their successors are
appointed by the Board of Directors. There are no arrangements or understandings
between any of the above-listed directors or officers, or any other persons,
pursuant to which any of the directors have been selected as directors, or
officers have been selected as officers.

         As a result of the Merger, Richard E. Cree and W. P. Buckthal will
become directors of T-NETIX. Following are descriptions of their experience.

         Mr. Cree is a founder of Gateway, and has served as its Chief Executive
Officer and President since its inception in 1988. Prior to founding Gateway, he
was Executive Vice President of American Republic Bancshares, a bank holding
company based in New Mexico, from 1982 to 1988. From 1971 to 1982, Mr. Cree
served as President and Chief Executive Officer of C-Five, a telecommunications
company that specialized in the manufacture and development of peripheral
telecommunications equipment. Mr. Cree was born in 1949 and holds a BBA degree
in Economics from Southern Methodist University.



                                     - 29 -

<PAGE>   37




         Mr. Buckthal has been an independent geologist and oil and gas producer
in Amarillo, Texas for the past 35 years. Prior to that, he was a geologist for
Hamilton Brothers for three years, and for Texaco for 10 years. He is a member
of the American Association of Petroleum Geologists and has been active in that
organizations' Division of Professional Affairs, including serving as national
board secretary. He has also served on the Alumni Advisory Council of the School
of Geology and Geophysics at the University of Oklahoma. After serving two years
in the Navy during World War II, Mr. Buckthal, 72, attended the University of
Oklahoma and received a BS degree in Geology.

ADDITIONAL INFORMATION

         Certain information about T-NETIX, including recent developments,
additional financial information, management's discussion and analysis of
T-NETIX's financial condition and results of operations, a more detailed
description of T-NETIX's business and other matters relating to T-NETIX, is
incorporated herein by reference to T-NETIX's Annual Report on Form 10-K for the
fiscal year ended July 31, 1998, and Transition Report on Form 10-QT for the
five months ended December 31, 1998. Copies of such documents are enclosed with
this Proxy Statement. See "Where You Can Find More Information."


                             DESCRIPTION OF GATEWAY

BUSINESS

General

         Gateway is engaged in the development, manufacturing, marketing and
support of computer-automated telephone systems. Gateway derives substantially
all of its revenues from its operation of inmate telecommunications systems
located in correctional facilities in approximately 23 states. Gateway's primary
customers include two distinct groups. The first group is the correctional
facilities ("Direct Customers") with which Gateway enters into multi-year
agreements to serve as the exclusive provider of telecommunication services to
inmates within each facility. Gateway currently accommodates collect calls from
these facilities. The second group includes both Regional Bell Operating
Companies ("RBOC Customers") and inter-exchange carriers ("IXC Customers").
These include Ameritech, Bell Atlantic, US West, SBC Communications, Inc., AT&T
and MCI WorldCom. Gateway provides specialized call processing and fraud control
services to these customers on a transaction fee basis. These two customer
groups combined use Gateway's products and services to process over 40,000,000
billable inmate collect calls annually in over 500 correctional institutions.
Gateway's products and services include comprehensive transaction processing,
call management, call recording and identification systems for the corrections
industry. Gateway's current products are based on proprietary software, the most
critical of which are patented or patent pending, and a combination of
proprietary and "off-the-shelf" electronic hardware. These systems are designed
to be flexible delivery platforms which are easily integrated with Gateway's
customer's networks and information systems. Gateway's revenue stream is mostly
recurring, as a result of the continuous collect calls generated by the Direct
Customers and the fee per transaction charged to the RBOC/IXC Customers over
long term contracts.

Corrections

         Calls from inmates of federal, state and local correctional facilities
comprise a significant segment of the public communications market. Inmates
typically may only place calls for a limited duration, which generates a high
volume of calls per phone, and generally may only place collect calls, which
tend to generate higher revenue per call than other types of calling.
Consequently, the inmate calling market is an attractive segment to call
providers.

         According to the U.S. Bureau of Justice Statistics as of December 1997,
approximately 5.7 million adults were under some form of correctional
supervision, and approximately 3.9 million adults were under parole or probation
sanction. Thus, the number of inmates in the nation's approximately 4,700
federal, state and local


                                     - 30 -

<PAGE>   38


correctional facilities was approximately 1.8 million. From 1990 to 1997, this
number increased at an average rate of 6.5% annually. These inmate populations
are the market to which Gateway delivers a majority of its products and
services.

         The inmate calling market presents unique and substantial challenges to
the call provider. Correctional facilities generally favor call providers that
can manage the inmate phone systems themselves, maintain consistent service and
easily process new inmates into the systems. Corrections officials generally
require control features that limit the length of calls, limit the time of day
calls are made and restrict the ability of inmates to make harassing or
unapproved telephone calls. The call provider must be able to customize the call
control features by facility, cell block, telephone and, in some cases, each
inmate. One of the unique challenges is to prevent the fraudulent bypassing of
these controls through three-way calling. Some inmates attempt to bypass
traditional control features by calling an accomplice at an approved number and
having the accomplice use three-way calling to conference a non-allowed party.
Through this method, some inmates have been known to harass and intimidate
people, such as witnesses, whose numbers would otherwise be blocked, or to call
merchants to conduct fraudulent activities.

         Correctional facilities generally select telephone/telecommunications
service providers on the basis of services and features provided and on the
level of commissions paid to the facilities. To win new contracts and renew
existing contracts, call providers must differentiate their services from those
of competitors. They do so by offering advanced call control services as well as
additional complementary services such as booking and identification processes,
trust fund and commissary automation and management, investigation support and
jail management support systems.

Products and Services

         Gateway's primary focus in the design of its products and services is
to provide software-based solutions to "niche" problems faced in the corrections
industry. Gateway believes this approach will result in a willingness of its
Direct Customers to accept lower commissions and its RBOC customers to pay more
for these solutions, and thus provides an opportunity to generate higher margin
revenue.

         Product/platform. Currently, substantially all of Gateway's revenue is
derived from the services it provides to its customers for use in correctional
facilities. During fiscal 1998, Gateway expended significant research and
development time and funds to upgrade its Inmate Calling platform to a new
technology. Gateway's Digital ComBridge platform is an on-premise network of
computers that provides what Gateway believes are industry-leading telephony
features and controls, as well as graphical user interface and flexible
reporting. Gateway provides the following features through the Digital ComBridge
platform:

         1.       Call Processing System. The system provides dialing
                  instructions, call announcement and acceptance messages and
                  error prompts in up to six different languages. A flexible
                  inmate account option allows for management of inmate personal
                  identification numbers. System control features applicable to
                  each inmate telephone such as call blocking, call timers,
                  system reports, alarm parameters and real-time display of
                  activity allow for expanded control. The system may be
                  designed in a one inmate phone to one CO line ratio or
                  concentration within the system to maximize port usage.

         2.       Optional Services.  The Digital Recording System allows for
                  recording and monitoring with the management of privileged
                  conversations. The DLT tape, CD or RAID storage allows for
                  flexible storage and an improved speed of retrieval. Three-way
                  call detection has been re- engineered and is more tightly
                  coupled with the call processor for even more reliability and
                  effectiveness all in a smaller footprint. The Inmate Trust
                  Accounting System provides a central point to administer all
                  inmate funds held by the facility by interfacing with all
                  other Digital ComBridge features to allow centralized
                  collection, disbursement, auditing and reporting of inmate
                  funds. The Commissary System interacts with the Trust
                  Accounting System allowing for efficient management of inmate
                  orders. The Inmate Management System allows the site to


                                     - 31 -

<PAGE>   39




                  capture images, fingerprints and maintain information on each
                  inmate. The system may be expanded to include debit calling to
                  allow for additional options of payment.

         Utilizing the latest digital technology, Gateway has re-engineered its
previous Call Processing System (CPS-4000). This effort has resulted in an easy
to use Inmate Telephone platform for large multi-site Department of Correction
facilities or small county jails.

         System Architecture and Technology. Gateway provides a call processing
system composed of a custom personal computer based application that uses
patented software, proprietary line cards and off-the-shelf hardware. Additional
applications have been added as options for customer use in conjunction with the
CPS-4000 to assist in the management of the facility. These are Jail Management,
Digital Recording System, Commissary System and Inmate Management System. All of
the additional applications are maintained and supported by Gateway.

         During 1998, Gateway installed the first site with the new Digital
ComBridge platform. The new system has a QNX operating system and a Windows 95/
NT interface for client use. Utilization of high density digital/analog network
interfaces and shared hardware resources allow for many channels of call control
to be housed in a single box. Gateway believes that the expanded capabilities of
this system should allow for the installation of larger systems.

         Support Infrastructure. Gateway supports its Inmate platform with a
seven-day-a-week, twenty-four-hour- a-day Client Services Department located at
Gateway's headquarters in Carrollton, Texas. The Client Services Department
provides a single source of contact for problem analysis. Problems are logged,
remotely diagnosed and solved or dispatched for a site visit. Gateway uses a
combination of employees and contractors who perform site maintenance. All
maintenance at the site is dispatched from the Client Services Department with
an expected four hour response time.

Pricing

         Direct Call Processing. Gateway provides inmate calling services as a
local exchange carrier and long distance carrier to its Direct Customers.
Gateway buys "wholesale" call services from the call providers to be resold as
collect calls to the inmates' called parties. The rates charged by Gateway for
these collect calls are consistent with collect call rates charged by the local
exchange carrier in the same service area and by the predominant IXC. Gateway
uses the services of third parties to bill its calls. Gateway enters into
long-term (3 to 5 years) contracts with the Direct Customers and generally pays
commissions on the gross billed revenue to the Direct Customers. The uncertainty
of the creditworthiness of the billed parties results in higher than industry
average uncollectible costs.

         Transaction-based Pricing. Gateway's transaction-based pricing provides
a recurring, usage-driven revenue stream. In a typical arrangement, Gateway
operates under long-term (3 to 5 years) site-specific contracts with the RBOC
Customers. Gateway also strives to enter into contracts to provide long distance
service for Direct Customers. This provides an additional direct call processing
revenue stream. The RBOC Customers pay transaction fees for each call processed
by Gateway, regardless of whether the RBOC Customer collects the revenue for the
call. The transaction fee is determined by the type of service performed by
Gateway and the total volume of calls processed for the customer during the
monthly billing period. Gateway bills these customers for transaction fees
associated with calls processed during the previous month on net 30-day terms.

Customers

         Direct Call Processing Customers. Gateway derives substantially all of
its revenues from its operation of inmate telecommunications systems located in
correctional facilities. For the 11 months ended November 30, 1998, 69% of
Gateway's total revenues were generated from agreements with Direct Customers to
be the exclusive provider of telecommunication services to inmates within the
facility. Multnomah County, Oregon and Santa Clara County, California are
Gateway's two largest Direct Customers, accounting for 6% and 5% of the total
Direct Call Processing revenues and 4% and 3% of Gateway's total revenues. No
other single customer exceeds 5% of


                                     - 32 -

<PAGE>   40




the total Direct Call Processing revenues in the same period. In exchange for
exclusive service rights, Gateway pays a percentage of its revenues from each
Direct Customer to that Direct Customer as a commission. Typically, Gateway
installs and retains ownership of the telephones and related equipment. Gateway
believes that its customers have selected it on the basis of the quality of its
services, the capability of its technology and its ability to offer competitive
commission rates.

         Transaction Fee Customers. Gateway also derives substantial revenues
from its call processing services provided to the RBOC and IXC Customers. For
the 11 months ended November 30, 1998, Ameritech and SBC Communications, Inc.
accounted for approximately 9% and 11%, respectively, of Gateway's total
revenues. No other customer accounted for more than 10% of Gateway's total
revenues in the same period. Gateway believes that its customers have selected
it on the basis of the quality and breadth of its turn-key services, the
capability of its technology and its ability to price its services at
competitive rates. Gateway generally establishes non-exclusive master agreements
with its customers which set forth the general terms and conditions, including
price, under which Gateway will provide its call processing services. Gateway
then enters into 3 to 5 year site-specific contracts under these master
agreements which govern the provision of services in specific correctional
facilities. Each master agreement provides that its term is automatically
extended through the term of any site-specific contract under the master
agreement. Certain site-specific contracts contain early termination provisions,
including penalties.

Research and Product Development

         Gateway believes that the timely development of quality-assured
products and enhancements are essential to maintaining its competitive position.
The multi-channel research in the design and modification of new and
complimentary products allows for a continual stream of upgrades to the customer
base.

         During the 11 months ended November 30, 1998, and the years ended
December 31, 1997, 1996 and 1995, research and development expenditures were
$1.34 million, $785,000, $485,000 and $461,000, respectively. These investments
allowed for the deployment of the new ComBridge platform, the release of the
Inmate Management System and quarterly releases on the CPS 4000, DRS 5000, Jail
Management System and Commissary.

         In 1998, Gateway developed an integrated Quality Assurance Program.
This process allows Gateway to better attain its goals of decreasing the number
of errors reported in all delivered products and increasing the satisfaction of
its customers.

Regulation

         Gateway's customers , and a portion of its current operations, are
subject to regulation by the Federal Communications Commission (the "FCC") and
the public utilities commissions of certain states in which Gateway and it
customers operate. Regulatory actions have impacted, and are likely to continue
to impact, both Gateway's customers and its operations. For example, certain
regulations encourage additional competition in the businesses of Gateway's
RBOC/IXC Customers and affect the manner in which their business is conducted. A
reduction in the amount of business done by Gateway's RBOC/IXC Customers would
have a material adverse impact on Gateway's revenue since such revenues are
directly related to volumes of calls processed under Gateway's transaction fee
pricing structure. Changes in the manner in which Gateway's RBOC/IXC Customers
conduct their business could have a material adverse impact on Gateway if, as a
result of such changes, Gateway's services and features were no longer needed or
desired or if Gateway were not able to modify, or add to, its services in a way
that meets the new market demands of its customers.

         The FCC has adopted a petition filed by an industry group comprised of
independent inmate call providers asking the FCC to adopt regulations modifying
the treatment of the provision of inmate calling services by all Local Exchange
Carriers ("LECs"), including the RBOCs. This petition requires the LECs to
provide separate accounting records for their public communication segments
which includes inmate calling. The regulations that may result from the petition
could require LECs to allocate more of their costs to inmate calling services,
thereby


                                     - 33 -

<PAGE>   41


making the RBOC customers of Gateway less competitive in this market, which in
turn could have a material adverse effect on Gateway.

         In 1996, Congress passed the Telecommunications Act of 1996. This
legislation opens up the network of LECs to further competition, and eliminates
certain prohibitions upon LECs' entering into other lines of business. The
legislation (1) opens local exchange service to competition and preempts states
from imposing barriers preventing such competition, (2) imposes new unbundling
and interconnection requirements on LEC networks, (3) removes prohibitions on
inter-LATA services and manufacturing if certain competitive conditions are met,
(4) transfers any remaining requirements of a consent decree (including its
nondiscrimination provisions) to the FCC's jurisdiction, (5) imposes
requirements to conduct certain competitive activities only through structurally
separate affiliates and (6) eliminates many of the remaining cable and telephone
company cross-ownership restrictions. Additionally, the legislation requires the
special accounting provisions for the LECs as requested in the petition
described above.

         On January 29, 1998, the FCC issued Order 98-7. This Order requires
that all parties called collect have the opportunity to receive a rate quote
before accepting a collect call. These rate quotes are necessary for all public
payphones and all inmate collect calling. Gateway's equipment provides this
feature.

         The foregoing discussion does not purport to describe all present and
proposed federal, state and local regulations, legislation, and related judicial
or administrative proceedings relating to the telecommunications industry and
thereby affecting the businesses of Gateway. The impact of increased competition
on the operations of Gateway will be influenced by the future actions of
regulators and legislators who are increasingly advocating competition. While
Gateway would attempt to modify its customer relationships and its service
offerings to meet the challenges resulting from changes in the
telecommunications competitive environment, there is no assurance it will be
able to do so.

PROPERTIES

         Gateway's headquarters are located at 1544 Valwood Parkway, Suite 102,
Carrollton, Texas 75006. The premises are located in an office park in suburban
Dallas, Texas, and include over 26,000 square feet of space housing operations
and offices. The premises are leased until September 30, 2002, with a five-year
renewal option. Current monthly lease payments are $18,510, and the payments
increase after September 30, 1999, to $19,595. It is expected that Gateway will
need additional space later in 1999. There is additional space available at
Gateway's current location which management intends to negotiate to obtain.
However, there is no assurance that the space will be made available on
reasonable terms.

COMPETITION

         The telecommunications services industry, especially the public
communications sector and the inmate calling market, is and can be expected to
remain highly competitive. Gateway competes directly with other suppliers of
inmate call processing systems. These include T-NETIX, Evercom Communications,
and Science Dynamics Corporation. Gateway also competes with some of these same
companies that are teamed with various call providers, including Gateway's
current RBOC/IXC Customers. Gateway believes that its ability to compete in the
inmate calling industry depends to a large extent upon the quality of the
features and services it provides, its proprietary technologies such as onsite
digital recording, and its lower cost of deployment through transaction- based
pricing. Gateway relies on both its customers and direct sales to market its
services to correctional facilities, which helps Gateway maintain some control
of the outcome of competitive bidding processes.

EMPLOYEES AND EMPLOYEE BENEFITS

         As of November 30, 1998, Gateway had 106 full-time equivalent
employees. The departmental classifications of such employees are as follows: 19
engineering and product development personnel; 16 marketing and sales personnel;
31 finance, information systems and administrative personnel; 10 production and
installation personnel; and 30 field operations personnel.


                                     - 34 -

<PAGE>   42


MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF
OPERATIONS

         For a comprehensive understanding of Gateway's financial condition and
performance, the following discussion should be read in conjunction with the
financial statements of Gateway and accompanying notes and other information
contained herein.

Overview

         Gateway derives revenue from two main sources, Direct Call Processing
(Direct Customers) and Transaction Processing (RBOC/IXC Customers). As a direct
inmate call provider, Gateway buys "wholesale"call services to be re-sold as
collect calls. Gateway uses the services of third parties to bill its calls.
Gateway enters into direct contracts with the correctional facilities and
generally pays commissions on the gross billed revenue to the correctional
facilities.

         The rates charged by Gateway are consistent with collect call rates
charged by the Local Exchange Carrier in the same service area and by the
predominant IXC. Since all calls originating from the inmate phones are collect
calls, each phone generates higher than industry average revenues. The
uncertainty of the creditworthiness of the billed parties results in a higher
than industry average uncollectible cost.

         Transaction Processing is a per call charge to a RBOC/IXC customer for
the provisioning of specialized call processing services for correctional
facilities. Gateway's customers include Ameritech, Bell Atlantic, US West, SBC
Communications, Inc., AT&T and MCI WorldCom. The revenue per call is
substantially lower than with Direct Call Processing but the margins are
substantially higher.

Eleven months ended November 30, 1998, compared to November 30, 1997

         The following table sets forth certain statement of operations data as
a percentage of total revenue for the eleven months ended November 30, 1998 and
1997.

<TABLE>
<CAPTION>
                                          Eleven months ended November 30
                                          -------------------------------
                                             1998                 1997
                                             ----                 ----
<S>                                       <C>                     <C>
REVENUES:
     Direct call processing                    66%                  68%
     Telecommunications services               27                   23
     Equipment sales                            7                    9
                                             ----                 ----
         Total revenues                       100                  100

EXPENSES:
     Operating  expenses                       65                   66
     Selling, general and administrative       19                   17
     Research and development                   5                    3
     Depreciation and amortization              6                    5
                                             ----                 ----
         Operating income                       5                    9
     Interest expense and other, net           (3)                  (3)
                                             ----                 ----
         Income before income taxes             2                    6
     Income tax expense                        (1)                  (2)
                                             ----                 ----
         Net income                             1%                   4%
                                             ====                 ====
</TABLE>

         Total Revenue. Total revenue increased 19% to $27,740,000 for the
eleven months ended November 30, 1998, from $23,323,000 for the prior period.
This increase resulted primarily from increases in direct call processing and
telecommunications services revenue. The 37% increase in telecommunications
services revenue to $7,495,000 for the eleven months ended November 30, 1998,
from $5,480,000 in the prior period was due to the addition of a new RBOC
customer as well as an increase in volume from existing customers.



                                     - 35 -

<PAGE>   43




         Direct call processing revenue increased 16%, or $2,474,000, for the
eleven months ended November 30, 1998, to $18,378,000 compared to the prior
period revenues of $15,904,000. This increase was primarily due to the addition
of correctional facilities for which Gateway is processing collect calls for the
inmate population.

         Operating Costs and Expenses. Total operating costs and expenses
increased to $17,891,000 for the eleven months ended November 30, 1998, from
$15,385,000 for the eleven months ended November 30, 1997, and decreased as a
percentage of total revenue to 65% from 66% in the prior period. Operating costs
and expenses associated with direct call processing include the costs associated
with telephone line access and transport, commissions paid to correctional
facilities, billing charges, costs associated with uncollectible accounts and
call verification procedures. Operating costs and expenses of telecommunications
services primarily consist of communication costs and inmate calling systems
repair and maintenance expense. Also included are costs associated with call
verification procedures, primarily database access charges. Gateway invoices
these verification procedure costs to its customers with minimal margins.
Equipment sales operating costs include the cost of hardware systems sold and
royalty charges.

         The following table sets forth the operating costs and expenses for
each type of revenue as a percentage of corresponding revenue for the eleven
months ended November 30, 1998 and 1997.

<TABLE>
<CAPTION>
                                                                           Eleven Months Ended November 30
                                                                           -------------------------------
                                                                            1998                  1997
                                                                            ----                  ----
<S>                                                                         <C>                   <C>
OPERATING EXPENSES:
     Direct call processing                                                   88%                   87%
     Telecommunications services                                              14                    12
     Cost of equipment sold                                                   40                    49
</TABLE>

         Direct call processing expenses increased as a percentage of
corresponding revenue to 88% for the eleven months ended November 30, 1998, from
87% in the corresponding prior period. This percentage increase was primarily
due to an increase in transport regulatory costs.

         Selling, General and Administrative Expenses. Selling, general and
administrative expenses increased to $5,403,000 for the eleven months ended
November 30, 1998, from $3,939,000 in the prior period, and increased as a
percentage of total revenue to 19% from 17% in the corresponding prior period.
The dollar increase was $1,464,000. The increase was due to an increase in
salaries and employee benefits as well as an increase in costs related to a more
aggressive marketing strategy.

         Research and Development Expenses. Research and development expenses
increased to $1,340,000 for the eleven months ended November 30, 1998, from
$711,000 in the corresponding prior period. This increase of $629,000 was due to
an accelerated implementation plan for Gateway's new inmate call processing
platform.

         Depreciation and Amortization Expenses. Depreciation and amortization
expenses increased to $1,699,000 for the eleven months ended November 30, 1998,
from $1,279,000 in the corresponding prior period. The increase was due to an
increased fixed and intangible assets base due to continuing installation of
inmate call processing systems at new sites and an acquisition in 1998.

         Interest Expense. Interest expense increased to $697,000 for the eleven
months ended November 30, 1998, from $602,000 in the corresponding prior period.
The increase was primarily attributable to an increase in the average daily debt
balance. The increase in indebtedness was necessary to support capital
expenditures for inmate call processing systems and the 1998 acquisition.

         Other expenses, net increased $507,000 for the eleven months ended
November 30, 1998, as compared to the corresponding prior period. This increase
was principally due to the write-off of a $600,000 investment in a private
company which Gateway determined was impaired due to several adverse events
experienced by such private company during 1998. The investment impairment loss
was partially offset by a gain of $83,000 on the sale of equipment.

Year ended December 31, 1997, compared to December 31, 1996

         The following table sets forth certain statement of operations data as
a percentage of total revenues for the years ended December 31, 1997 and 1996.



                                     - 36 -

<PAGE>   44




<TABLE>
<CAPTION>
                                                                             Year Ended December 31 
                                                                           -------------------------- 
                                                                            1997                 1996
                                                                           -----                -----
<S>                                                                        <C>                  <C>
REVENUES:
     Direct call processing                                                   68%                  71%
     Telecommunications services                                              24                   27
     Equipment sales                                                           8                    2
                                                                           -----                -----
         Total revenues                                                      100                  100

EXPENSES:
     Operating  expenses                                                      66                   68
     Selling, general and administrative                                      17                   25
     Research and development                                                  3                    2
     Depreciation and amortization                                             5                    6
                                                                           -----                -----
         Operating income (loss)                                               9                   (2)
     Interest expense and other, net                                          (3)                  (2)
                                                                           -----                -----
         Income (loss) before income taxes                                     6                   (4)
     Income tax (expense) benefit                                             (2)                  1
                                                                           -----                -----
         Net income (loss)                                                     4%                  (3)%
                                                                           =====                =====
</TABLE>

         Total Revenue. Total revenue increased 27% to $26,013,000 for the year
ended December 31, 1997, from $20,433,000 for the prior year. This increase
resulted primarily from increases in direct call processing and
telecommunications services revenue. The 11% increase in telecommunications
services revenue to $6,145,000 for the year ended December 31, 1997, from
$5,552,000 in the prior year, was due to an increase in volume from existing
RBOC/IXC customers.

         Direct call processing revenue increased 23% or $3,273,000, for the
year ended December 31, 1997, to $17,656,000 compared to the prior year revenues
of $14,383,000. This increase was primarily due to the addition of correctional
facilities for which Gateway is processing collect calls for the inmate
population.

         Operating Costs and Expenses. Total operating costs and expenses
increased to $17,077,000 for the year ended December 31, 1997, from $13,888,000
for the year ended December 31, 1996, and decreased as a percentage of total
revenue to 66% from 68% in the prior year. The increase related primarily to
expenses necessary to support the additional revenue for the year. The
percentage decrease was primarily attributable to cost containment measures
implemented by Gateway.

         The following table sets forth the operating costs and expenses for
each type of revenue as a percentage of corresponding revenue for the years
ended December 31, 1997 and 1996.

<TABLE>
<CAPTION>
                                                                             Year Ended December 31 
                                                                            ------------------------ 
                                                                            1997                1996
                                                                            ----                ----
<S>                                                                         <C>                 <C>
OPERATING EXPENSES:
     Direct call processing                                                   86%                89%
     Telecommunications services                                              13                 13
     Cost of equipment sold                                                   51                 60
</TABLE>

         Direct call processing costs decreased as a percentage of corresponding
revenue to 86% for the year ended December 31, 1997, from 89% in the
corresponding prior year. This percentage decrease was primarily due to
increased volume discounts for transmission costs and billing and collection
costs.

         Selling, General and Administrative Expenses. Selling, general and
administrative expenses decreased to $4,328,000 for the year ended December 31,
1997, from $5,176,000 in the prior year, and decreased as a percentage of total
revenue to 17% from 25% in the corresponding prior year. The dollar decrease was
$848,000. The decrease was primarily due to a decrease in legal costs of
$1,300,000 associated with defending a patent, offset by an increase in salaries
and employee benefits.


                                     - 37 -

<PAGE>   45




         Research and Development Expenses. Research and development expenses
increased to $785,000 for the year ended December 31 1997, from $485,000 in the
corresponding prior period. This increase was due to the initial start-up costs
for the development of a new inmate call processing platform.

         Depreciation and Amortization Expenses. Depreciation and amortization
expenses increased to $1,411,000 for the year ended December 31, 1997, from
$1,282,000 in the corresponding prior period. The increase was due to an
acquisition of tangible and intangible assets made during 1996.

         Interest Expense. Interest expense increased to $660,000 for the year
ended December 31, 1997, from $563,000 in the corresponding prior period. The
increase was primarily attributable to an increase in the average daily debt
balance. The increase in indebtedness was necessary to support capital
expenditures for inmate call processing systems.

Year ended December 31, 1996, compared to year ended December 31, 1995

         The following table sets forth certain statement of operations data as
a percentage of total revenue for the years ended December 31, 1996 and 1995.

<TABLE>
<CAPTION>
                                                                             Year Ended December 31 
                                                                           -------------------------- 
                                                                            1996                 1995
                                                                           -----                -----
<S>                                                                        <C>                  <C>
REVENUES:
     Direct call processing                                                   71%                  62%
     Telecommunications services                                              27                   29
     Equipment sales                                                           2                    9
                                                                           -----                -----
         Total revenues                                                      100                  100

EXPENSES:
     Operating  expenses                                                      68                   64
     Selling, general and administrative                                      25                   25
     Research and development                                                  2                    3
     Depreciation and amortization                                             6                    6
                                                                           -----                -----
         Operating income (loss)                                              (2)                   2
     Interest expense and other, net                                          (2)                   2
                                                                           -----                -----
         Income (loss) before income taxes                                    (4)                   4
     Income tax (expense) benefit                                              1                   (2)
                                                                           -----                -----
         Net income (loss)                                                   (3)%                   2%
                                                                           =====                =====
</TABLE>

         Total Revenue. Total revenue increased 26% to $20,433,000 for the year
ended December 31, 1996, from $16,271,000 for the prior year. This increase
resulted from a 41% increase in direct call processing revenue and a 20%
increase in telecommunications services revenue. Telecommunications services
revenue increased to $5,552,000 for the year ended December 31, 1996, from
$4,648,000 in the prior year, due to an increase in volume from existing
RBOC/IXC customers.

         Direct call processing revenue increased to $14,383,000 for the year
ended December 31, 1996, from $10,212,000 in the prior year due to increased
prison population at existing Direct Customer correctional facilities and the
addition of new Direct Customers.

         Operating Costs and Expenses. Total operating costs and expenses
increased to $13,888,000 for the year ended December 31, 1996, from $10,460,000
for the year ended December 31, 1995, and also increased as a percentage of
total revenue to 68% from 64% in the prior year. The increase of 3,428,000 or
33% was primarily a result of an increase in direct call processing revenue,
which has higher operating costs, and a decrease in telecommunications services
revenue and equipment sales, both of which have lower operating costs.



                                     - 38 -

<PAGE>   46




         The following table sets forth the operating costs and expenses for
each type of revenue as a percentage of corresponding revenue for the years
ended December 31, 1996 and 1995.

<TABLE>
<CAPTION>
                                                        Year Ended December 31 
                                                      --------------------------
                                                      1996                  1995
                                                      ----                  ----
<S>                                                   <C>                   <C>
OPERATING EXPENSES:
     Direct call processing                             89%                  90%
     Telecommunications services                        13                   15
     Cost of equipment sold                             60                   42
</TABLE>

         Direct call processing costs decreased as a percentage of corresponding
revenue to 89% for the year ended December 31, 1996, from 90% in the
corresponding prior year. This percentage decrease was primarily due to
increased volume discounts for transmission costs and billing and collection
costs. Operating costs and expenses associated with providing telecommunications
services decreased as a percentage of corresponding revenue to 13% for the year
ended December 31, 1996, from 15% in the prior year. The decrease was primarily
due to the increased call volumes resulting in additional discounts on transport
costs.

         Selling, General and Administrative Expenses. Selling, general and
administrative expenses increased to $5,176,000 for the year ended December 31,
1996, from $4,136,000 in the prior year. The percentage to total revenue
remained the same at 25%. The dollar increase was $1,040,000. This increase
consisted primarily of legal costs of $1,300,000 associated with defending a
patent offset by a decrease in ordinary legal expenses.

         Research and Development Expenses. Research and development expenses
increased to $485,000 for the year ended December 31, 1996, from $461,000 in the
corresponding prior year, primarily due to annual merit payroll increases.

         Depreciation and Amortization Expenses. Depreciation and amortization
expenses increased to $1,282,000 for the year ended December 31, 1996, from
$921,000 in the corresponding prior year. The increase was due to an increased
fixed and intangible assets base resulting from a 1996 acquisition, and from
increased inmate call processing systems installed by Gateway.

         Interest Expense. Interest expense increased to $563,000 for the year
ended December 31, 1996, from $380,000 in the corresponding prior period. The
increase was primarily attributable to a increase in the average daily debt
balance. The increase in indebtedness was necessary to support the 1996
acquisition and capital expenditures for inmate call processing systems and
operating expenses.

LIQUIDITY AND CAPITAL RESOURCES

         Gateway has historically relied upon commercial borrowings, stockholder
financing, the sale of equity securities and operating cash flow to fund its
operations and capital needs. Cash provided by financing activities was
$2,786,000 for the eleven months ended November 30, 1998, as compared to
$813,000 for the same period of the prior fiscal year. The increase in cash
provided by financing activities was primarily attributable to borrowings of
$2,600,000 from stockholders to finance the October 1998 acquisition of certain
site contracts from Consolidated Telecom, Inc. Cash provided by operations was
$1,657,000 for the eleven months ended November 30, 1998, compared to $533,000
for the same period in 1997. The increase in cash provided by operations is
primarily due to the increase in net income for the eleven months ended November
30, 1998, as adjusted for noncash items such as depreciation and amortization,
gain on dispositions of assets, deferred revenue earned, deferred income taxes
and noncash compensation, as compared to the same period in 1997. Net income
adjusted for such noncash charges amounted to $2,565,000 for the eleven months
ended November 30,1998 compared to $1,630,000 for the same period in 1997. The
remaining increase in cash provided by operations during the eleven months ended
November 30, 1998, as compared to the same period in the prior year was due to
the net change in operating assets and liabilities. These net amounts totaled to
cash used of $908,000 for the eleven months ended November 30, 1998, compared to
cash used of $1,097,000 for the same period in 1997.


                                     - 39 -

<PAGE>   47




         The net cash used in investing activities in the eleven months ended
November 30, 1998, was $4,608,000. This included $2,210,000 for the acquisition
of site contracts in October 1998 from Consolidated Telecom, Inc. Additionally,
investing activities included capital expenditures of $2,519,000 for the eleven
months ended November 30, 1998, as compared to $1,378,000 for the same period in
1997. The capital expenditures for the eleven months ended November 30, 1998
were mainly for telecommunications equipment and office equipment. Gateway
anticipates that capital expenditures for telecommunications equipment will
primarily follow the installation of new systems and will increase as the
current base of systems are upgraded to provide increased functional ability.
Gateway has been funding its operations by using cash provided by operations,
available borrowings under a $3 million line of credit, and in the case of the
1998 acquisition, with borrowings from stockholders. Management believes that
the credit facility should be sufficient to fund Gateway's operations and
anticipated new inmate call processing systems, upgrades of existing systems. If
the borrowing facilities and cash from operations are insufficient to satisfy
Gateway's requirements, Gateway may be required to sell additional equity
securities or extend its borrowing arrangements. There can be no assurance that
such financing will be available or, if available, will be obtainable on
satisfactory terms.

THE YEAR 2000 ISSUE

         The Problem. The Year 2000 issue is the result of computer programs
being written using two digits rather than four to define the applicable year.
As a result, any of Gateway's computer programs that have date- sensitive
software may recognize a date using "00" as the year 1900 rather than the year
2000. This could result in system failures or miscalculations causing
disruptions of operations of Gateway and its suppliers and customers.

         Gateway's State of Readiness. Gateway has established a Year 2000
Oversight Committee. It is the responsibility of the committee to evaluate all
potential Year 2000 problems of current computer systems, software, and embedded
technologies. The evaluation revealed that approximately 70% of Gateway's
current proprietary hardware based inmate calling platform deployed on behalf of
its customers is currently Year 2000 compliant. The targeted date for the
remaining 30% is June 1999. The software utilized on these systems is targeted
to be Year 2000 compliant with the planned March 1999 release. The software will
be deployed over a six month period with a scheduled completion date of
September 1999. The evaluation also revealed that the internal operating system
that provides Gateway's Local Area Network ("LAN"), voice mail system and
accounting and business process software are additional major resources that do
have Year 2000 compliance issues. These internal systems and or programs are
predominantly "off-the-shelf" products with Year 2000 versions now available.
Gateway's internal network, voice mail system and accounting and business
process software are scheduled for update utilizing vendor provided upgrades by
June 1999.

         As a part of the Year 2000 Oversight Committee's evaluation process,
significant suppliers and large customers have been contacted to determine the
extent to which Gateway is vulnerable to those third parties' failure to solve
their own Year 2000 issue. There can be no guarantee that the systems of other
companies on which Gateway's business relies will be timely converted, or that a
failure to convert by another company, or a conversion that is incompatible with
Gateway's systems would not have a material adverse effect on Gateway and its
operations.

         The Costs to Address Gateway's Year 2000 Issues. Expenditures in fiscal
1998 for the Year 2000 Project amounted to less than $15,000. Management expects
that the completion of its Year 2000 Project may result in additional
expenditures of approximately $500,000.

         The Risks Associated with Gateway's Year 2000 Issues. Gateway's failure
to resolve Year 2000 issues on or before December 31, 1999, could result in
system failures or miscalculations causing disruption in operations, including
among other things, a temporary inability to process transactions, send
invoices, send and/or receive e-mail and voice mail, or engage in normal
business activities. Additionally, failure of third parties upon whom Gateway's
business relies to timely solve their Year 2000 issues could result in
disruptions in Gateway's supply of network parts and materials, late, missed, or
unapplied payments, temporary disruptions in order processing and other general
problems related to Gateway's daily operations. While Gateway believes its Year
2000 Oversight Committee will adequately address Gateway's internal Year 2000
issues, until Gateway receives responses from a


                                     - 40 -

<PAGE>   48


significant number of Gateway's suppliers and customers, the overall risks
associated with the Year 2000 issue remain difficult to accurately describe and
quantify, and there can be no guarantee that the Year 2000 issue will not have a
material adverse effect on Gateway and its operations.

         Gateway's Contingency Plan. Gateway has not, to date, implemented a
Year 2000 Contingency Plan. It is Gateway's goal to have the major Year 2000
issues resolved by October 1999. Gateway has not yet been notified by its
customers that it will be required to have an outside consultant to verify and
validate Gateway's Year 2000 compliance. Final Year 2000 verification and
validation is scheduled to occur March 1999. At this time Gateway's Year 2000
Oversight Committee plans to evaluate the need for and develop a contingency
plan, if required.

LEGAL PROCEEDINGS

         Except as described below, Gateway is not a party to any pending
material legal proceedings before any court, administrative agency or other
tribunal. Further, Gateway is not aware of any litigation which is threatened
against it in any court, administrative agency or other tribunal.

         1.       On July 29, 1998, six inmates of the Santa Clara, California
                  County Department of Corrections filed Brazeau v. Ryan against
                  the County of Santa Clara, alleging that their rights had been
                  violated by implementation of a telephone recording system. On
                  September 18, 1998, the plaintiffs joined Gateway as a
                  co-defendant. While it is impossible to predict the outcome of
                  this litigation, Gateway believes that it will be resolved
                  without material liability.

         2.       In a case brought in the U.S. District Court for the Western
                  District of Kentucky at Louisville, styled Gus "Skip" Daleure,
                  Jr., et al. v. Commonwealth of Kentucky, et al., the complaint
                  joins as defendants several states, political subdivision of
                  states, and inmate service telecommunications providers and
                  was filed contemporaneously with a request for certification
                  by the court of a nationwide plaintiffs' class action
                  consisting of all persons who have received and paid for
                  telephone calls initiated by an inmate at a prison, jail or
                  other correctional institution for the provision of "collect
                  only" inmate telecommunications services. The complaint
                  alleges violations of the Sherman Antitrust Act, the
                  Robinson-Patman Act and the U.S. Constitution. Although
                  management believes that the likelihood of an unfavorable
                  outcome is low, there is no assurance that a judgment against
                  a class of defendant providers will not ultimately be entered.

         3        In Jamal Williams v. Multnomah County Sheriff Department, et
                  al., brought in the Circuit Court of Oregon for the County of
                  Multnomah, the complaint in the case, which alleges tortious
                  invasion of privacy by intrusion upon seclusion, was received
                  by Gateway on February 1, 1999. Although management believes
                  that the likelihood of an unfavorable outcome is low, it is
                  impossible to predict the outcome of this litigation.


                             PRINCIPAL SHAREHOLDERS

         As of February 10, 1999, there were 8,558,067 shares of T-NETIX Stock
outstanding. The two shareholders known by T-NETIX to be beneficial owners of at
least 5% of the shares of T-NETIX Stock then outstanding were Ingalls and
Snyder, LLC and Daniel M. Carney. The following table gives stock ownership
information for these 5% or greater shareholders, each current director of
T-NETIX and all executive officers and directors of T-NETIX as a group. The
information is provided as of February 10, 1999, and also on a pro forma basis
assuming the issuance of approximately 4,048,000 shares of T-NETIX Stock in
connection with the Merger. Mr. Carney is both a director and a 5% or greater
shareholder, and his information is shown under the category "Current
Directors." Except as otherwise indicated, each of the persons named below has
sole voting and investment power with respect to the T-NETIX Stock owned by
such person.


                                     - 41 -

<PAGE>   49




<TABLE>
<CAPTION>
                                                                                 Stock Ownership
                                                                -----------------------------------------------
                                                                   Number of       Percentage            Pro
                                                                 Shares Bene-       of Shares           Forma
Name and Address of Beneficial Owners                           ficially Owned     Outstanding       Percentage
- - -------------------------------------                           --------------     -----------       ----------
<S>                                                             <C>                <C>               <C> 
Ingalls and Snyder, LLC                                             503,625            5.9%             4.0%
61 Broadway
New York, NY 10006

Names of Current Directors

Daniel M. Carney                                                  1,915,140(1)        22.3%            15.2%
Tallgrass Executive Park
Building 1900
8100 East 22nd Street North
Wichita, KS 67226

Robert A. Geist                                                     310,000(2)        3.6%              2.5%

Alvyn A. Schopp                                                     220,109(3)        2.5%              1.7%

Martin T. Hart                                                       35,000(4)          *                 *

James L. Mann                                                        16,900(5)          *                 *

Daniel J. Taylor                                                     80,000             *                 *

John H. Burbank III                                                   4,450             *                 *

All Current Directors and Executive Officers                      2,636,799(6)       29.8%             20.4%
as a group (8 persons)
</TABLE>

- - ----------------------------
* Less than 1%.

(1)      Includes (i) 115,000 shares owned by Communication Vending Corporation
         of Arizona, of which Mr. Carney has a 30% beneficial interest; and (ii)
         20,000 shares issuable pursuant to options exercisable within 60 days
         of February 10, 1999.

(2)      Includes (i) 290,000 shares are held by Starwood Investments L.P., a
         company owned and controlled by Mr. Geist; and (ii) 20,000 shares
         issuable pursuant to options exercisable within 60 days of February 10,
         1999.

(3)      Includes 187,250 shares issuable pursuant to options exercisable within
         60 days of February 10, 1999.

(4)      Includes 5,000 shares issuable pursuant to options exercisable within
         60 days of February 10, 1999.

(5)      Includes 15,000 shares issuable pursuant to options exercisable within
         60 days of February 10, 1999.

(6)      Includes 302,250 shares issuable pursuant to options exercisable within
         60 days of February 10, 1999.

         As of February 10, 1999, there were 729,004 shares of Gateway Stock
outstanding. The five shareholders known by Gateway to be beneficial owners of
at least 5% of the shares of Gateway Stock then outstanding were W. Paul
Buckthal, George B. Cree, Jr., Richard E. Cree, James B. Franklin and Irvin
Wall. The following table gives stock ownership information for these 5% or
greater shareholders, each current director of Gateway and all


                                     - 42 -

<PAGE>   50


executive officers and directors of Gateway as a group. The information is
provided as of February 10, 1999, and also on a pro forma basis assuming
conversion of each share of Gateway Stock held into 5.0375 shares of T-NETIX
Stock, conversion of each Gateway Option for one share of Gateway Stock into a
T-NETIX Option for 5.0375 shares of T-NETIX Stock, and issuance of approximately
4,048,000 shares of T-NETIX Stock in the Merger. Richard E. Cree is both a
director and a 5% or greater shareholder, and his information is shown below
under the category of "Current Directors." Except as otherwise indicated, each
of the persons named below has sole voting and investment power with respect to
the Gateway Stock owned by such person.

<TABLE>
<CAPTION>
                                                                                 Stock Ownership
                                                                -----------------------------------------------
                                                                   Number of       Percentage           Pro
                                                                 Shares Bene-       of Shares          Forma
Name and Address of Beneficial Owners                           ficially Owned     Outstanding       Percentage
- - -------------------------------------                           --------------     -----------       ----------
<S>                                                             <C>                <C>               <C> 
W. Paul Buckthal                                                    108,426            14.9%             4.7%
700 South Fillmore, Suite 444
Amarillo, Texas 79101-2444

George B. Cree, Jr.                                                  78,196            10.7%             3.3%
P.O. Box 1821
Pampa, Texas 75006

James B. Franklin                                                   108,426            14.9%             4.7%
700 South Fillmore, Suite 444
Amarillo, Texas 79101-2444

Irvin Wall                                                          108,426            14.9%             4.7%
700 South Fillmore, Suite 435
Amarillo, Texas 79101

Names of Current Directors

Richard E. Cree                                                      89,060(1)         11.6%             3.7%
1544 Valwood Parkway, Suite 102
Carrollton, Texas 75006

Harold A. Cree                                                       35,692(2)          4.9%             1.6%

Keith Fowler                                                         34,507             4.7%             1.5%

Jack O'Boyle                                                         15,499(3)          2.1%                *

All Current Directors and Executive Officers
      as a group (5 persons)                                        186,067(4)         24.2%             7.5%
</TABLE>

- - ----------------------------
*        Less than 1%.

(1)      Includes 3,219 shares held by the Jonathan B. Cree Trust and 3,219
         shares held by the Lindsay Adair Cree Trust, each of which Mr. Cree is
         co-trustee, and 34,947 shares issuable pursuant to options exercisable
         within 60 days of January 31, 1999, assuming consummation of the
         Merger.

(2)      Includes 5,981 shares held by the Richard J. Cree Trust, of which Mr.
         Cree is co-trustee.

(3)      Includes 1,109 shares held by the John J. O'Boyle Trust, of which Mr.
         O'Boyle is co-trustee.



                                     - 43 -

<PAGE>   51




(4)      Includes footnotes (1), (2) and (3) above, and 4,229 shares issuable
         pursuant to options exercisable within 60 days of January 31, 1999,
         assuming consummation of the Merger.


                    AMENDMENTS TO T-NETIX STOCK OPTION PLANS

NEW PLAN BENEFITS

         In connection with the Merger, T-NETIX proposes to amend its 1993
Incentive Stock Option Plan (the "ISO Plan") and its Non-Qualified Stock Option
Plan (the "NQSO Plan") to increase the number of shares of T-NETIX Stock
available for options under the Plans from 2,000,000 to 2,600,000. This will
serve two purposes. First, it will accommodate the T-NETIX Options being issued
in the Merger in exchange for Gateway Options. There are currently 120,368
shares of T-NETIX Stock available for T-NETIX Options under the Plans, and
T-NETIX Options for 347,789 shares of T-NETIX Stock will be issued in the Merger
in exchange for Gateway Options. Second, it will allow for new incentive
compensation alternatives for employees of the combined company.

         The consideration that T-NETIX will receive for the grant of T-NETIX
Options to the holders of Gateway Options will be the cancellation of the
Gateway Options. T-NETIX will not receive any other consideration for the grant
of any options under the Plans. There will be no federal tax consequences upon
the grant of any option under either of the Plans. For options under the NQSO
Plan, upon exercise of an option the option holder will incur ordinary income
tax on the difference between the fair market value of the shares underlying the
option and the exercise price of the option, while T-NETIX will recognize a tax
deduction for the same amount. For options under the ISO Plan, no income to the
option holder or expense to T-NETIX is recognized upon exercise of the option.
Upon sale of the shares underlying the option, the selling shareholder will
incur capital gains tax on the difference between the sale price and the
exercise price. The other material features of the Plans are described below
under "Executive Compensation--Stock Option Plans."

         Currently, there is no plan to allocate options for the additional
600,000 shares of T-NETIX Stock to any particular officer, director, employee or
group thereof, other than allocating options for approximately 348,000 shares to
the holders of Gateway Options pursuant to the Merger. Options for the remaining
shares of T-NETIX Stock available under the Plans will be granted from time to
time by the Board of Directors of T-NETIX to the various eligible individuals
according to factors which the Board deems relevant at the time of grant.

         T-NETIX Options for 176,046 shares will be granted to Richard E. Cree
in the Merger. T-NETIX Options for 171,743 shares will be granted to other
holders of Gateway Options in the Merger.

EXECUTIVE COMPENSATION

         The information in this section is for T-NETIX for the fiscal year
ended July 31, 1998. Since that date, Mr. Huzjak has resigned as Chief Executive
Officer and Mr. Schopp has been appointed as Chief Executive Officer. The
position of Chief Financial Officer remains open at this time.

Compensation of Directors

         T-NETIX's non-employee directors are compensated at the rate of $1,000
per meeting attended inclusive of expenses. In August 1994, T-NETIX granted
options to acquire 20,000 shares of T-NETIX Stock to each of the directors of
T-NETIX other than Mr. Huzjak and Mr. Schopp under T-NETIX's NQSO Plan with an
exercise price of $5.50 per share. In September 1995, Mr. Mann was granted
options to acquire 20,000 shares of T-NETIX Stock with an exercise price of
$13.00 per share. In August 1997, Mr. Mann's options were amended to lower the
option price to $7.25 per share. In December 1997, Mr. Hart was granted options
to acquire 20,000 shares of T-NETIX Stock with an exercise price of $9.00 per
share. In February 1999, Messrs. Burbank and Taylor were each granted options to
acquire 20,000 shares of T-NETIX Stock with an exercise price of $6.125 per
share. See "--Stock Option Plans." The options granted to directors vest evenly
over a four-year period.


                                     - 44 -

<PAGE>   52




Board Committees and Meetings

         The Board of Directors has established a Compensation Committee which
makes recommendations to the Board concerning salaries and incentive
compensation for officers and employees of T-NETIX. See "--Report by the
Compensation Committee on Executive Compensation." The Compensation Committee is
currently composed of Mr. Geist, Mr. Mann (Chairman) and Mr. Carney. The Board
of Directors also has an Audit Committee which reviews the results and scope of
the audit and other accounting related services. The Audit Committee is
currently composed of Mr. Geist, Mr. Mann and Mr. Hart (Chairman). Nominees for
the Board of Directors are determined by the entire Board.

         For the year ended July 31, 1998, there were five meetings of the Board
of Directors, one meeting of the Compensation Committee and one meeting of the
Audit Committee. All directors attended 100% of T-NETIX's Board meetings and
meetings of Board committees on which they served, except for Mr. Hart, who
attended two of the three meetings of the Board that occurred between the time
he became a Director and July 31, 1998.

Executive Compensation Table

         The following table sets forth information concerning the compensation
received for services rendered in all capacities to T-NETIX for the years ended
July 31, 1998, 1997, and 1996, by Mr. Huzjak and Mr. Schopp. No other executive
officer's compensation exceeded $100,000 during the year ended July 31, 1998. No
restricted stock awards, long-term incentive plan payouts or stock appreciation
rights ("SARs") were granted to Mr. Huzjak or Mr. Schopp in such years.

                          SUMMARY COMPENSATION TABLE(1)
                                                           


<TABLE>
<CAPTION>
                                                                                                Long-Term  
                                                                                              Compensation
                                                                                              -------------
                                                               Annual Compensation             Securities  
                                        Fiscal            -------------------------------       Underlying     
Name and Principal Position              Year             Salary              Bonuses (2)     Stock Options
- - ---------------------------             ------            --------            -----------     -------------
<S>                                     <C>               <C>                 <C>             <C>          
Thomas J. Huzjak                        1998              $240,000              $15,000                 --
Chairman of the Board                   1997               195,000                   --          $  36,000
and Chief Executive Officer             1996               175,000                   --            100,000

Alvyn A. Schopp                         1998              $158,625              $15,000                 --
Chief Financial Officer                 1997               143,750                   --             32,000
                                        1996               113,000                   --             75,000
</TABLE>

- - ----------------------------
(1)   With respect to each of the individuals named in the Summary Compensation
      Table, the aggregate amount of perquisites and other personal benefits
      received did not exceed the lesser of either $50,000 or 10% of the total
      of annual salary and bonus reported for such individual.

(2)   Bonuses, if applicable, were paid pursuant to the Management Incentive
      Programs described below under "--Management Incentive Programs."

Option Grants in the Last Fiscal Year

         No stock options were granted to executive officers during the fiscal
year ended July 31, 1998.

         The following table provides information as to the aggregate dollar
value of unexercised stock options held by Mr. Huzjak and Mr. Schopp at July 31,
1998. No stock options were exercised by Mr. Huzjak and or Mr. Schopp during
fiscal 1998.


                                     - 45 -

<PAGE>   53



                          FISCAL YEAR-END OPTION VALUES

<TABLE>
<CAPTION>
                                                 Number of Shares of                Value of Unexercised
                                            Underlying Unexercised Options          In-the-Money Options
                                                 at Fiscal Year End                at Fiscal Year End(1)(2)    
                                            ------------------------------      -----------------------------
Name                                        Exercisable      Unexercisable      Exercisable     Unexercisable
- - ----                                        -----------      -------------      -----------     -------------
<S>                                         <C>              <C>                <C>             <C>          
Thomas J. Huzjak                                184,010             93,250      $   528,360     $      98,375
Alvyn A. Schopp                                 144,250             77,750(3)       393,500            86,750(3)
</TABLE>

- - ----------------------------

(1)   Represents the fair market value of the T-NETIX Stock based upon the
      closing price per share as quoted on Nasdaq on July 31, 1998 ($8.00 per
      share), less the option exercise price.

(2)   Amounts reflect the August 11, 1997, re-pricing of certain stock options.
      See "--Stock Option Plans."

(3)   Does not include options for 100,000 shares of T-NETIX Stock granted to
      Mr. Schopp in December 1998 in connection with his promotion to Chief
      Executive Officer.

Management Incentive Programs

         In October 1998, the T-NETIX Board adopted the 1998 Management
Incentive Program (covering fiscal year 1999) by readopting the same basic terms
as the prior year Management Incentive Program with new performance targets.

         In September 1997, the T-NETIX Board adopted the 1997 Management
Incentive Program (covering fiscal year 1998) which provided that certain
employees of T-NETIX will be rewarded for achieving specific individual and
company objectives. The 1997 Management Incentive Program rewarded individuals
for company performance targets based on revenue and earnings before interest
and taxes (subject to adjustments for extraordinary events).

         In August 1996, the T-NETIX Board adopted the 1996 Management Incentive
Program (covering fiscal year 1997) which provided that certain employees of
T-NETIX would be rewarded for achieving specific individual and company
objectives. The 1996 Management Incentive Program was designed to reward
individuals for company performance targets based on total revenue, new revenue,
and earnings before interest and taxes.

Stock Option Plans

         T-NETIX's ISO Plan, adopted by T-NETIX on May 1, 1993, and T-NETIX's
1991 Incentive Stock Option Plan, adopted by T-NETIX on January 10, 1991,
provide that options for T-NETIX Stock may be granted to such key employees,
including officers and directors who are also employees, of T-NETIX or its
subsidiaries whom the Board of Directors deems to be important to the future of
T-NETIX or its subsidiaries. There are five officers, one employee/director and
approximately 30 other key employees eligible to participate in the ISO Plan.
T-NETIX's NQSO Plan, adopted by T-NETIX on January 10, 1991, provides that
options for T-NETIX Stock may be granted to eligible employees, officers and
directors of T-NETIX or its subsidiaries. There are also five officers, one
employee/director and approximately 30 other employees eligible to participate
in the NQSO Plan. The period for which an option is granted under all three
plans may not exceed ten years from the date of the grant. In general, an
optionee may not exercise any part of an option granted under the two incentive
plans unless the optionee has been in the continuous employment of T-NETIX or a
subsidiary at all times from the date of the grant until the date three months
prior to the date of exercise. The option price per share is determined by the
Board of Directors at the time an option is granted and cannot be less than 100%
of the fair market value of T-NETIX Stock on the date of grant.

         On July 24, 1997, the Board amended the ISO Plan and the NQSO Plan to
provide that the Compensation Committee may amend certain outstanding options
with an exercise price in excess of the current market price in


                                     - 46 -

<PAGE>   54




order to modify the exercise price to the current market price or greater. On
August 11, 1997, the Compensation Committee re-priced the exercise price to
$7.25 per share for certain outstanding options under the ISO Plan and NQSO Plan
having an exercise price equal to or greater than $7.50 prior to such
re-pricing. This re-pricing affected 725,500 options under the ISO Plan and
48,000 options under the NQSO Plan.

         The Board of Directors may amend these plans at any time but may not,
without shareholder approval, adopt any amendment that would (i) materially
increase the benefits accruing to participants, (ii) materially modify the
eligibility requirements, or (iii) increase the maximum number of shares which
may be issued under each plan.

Compensation Committee Interlocks and Insider Participation

         The following non-employee directors served as members of the 
Compensation Committee for the year ended July 31, 1998: Messrs. Geist, Mann and
Carney. The members of T-NETIX's Compensation Committee have no interlocking
relationships as defined by SEC rules and regulations.

Compensation Committee Report on Executive Compensation

         Executive Compensation Policies. The Compensation Committee recognizes
that the success of T-NETIX, including its ability to expand its service
offerings and its markets and to maintain its existing contracts and customer
relationships, is dependent on the performance of its employees. T-NETIX's
employees are its primary asset. As a result, the Compensation Committee has
adopted the following executive compensation policies:

         (1)      T-NETIX's executive compensation policies should balance the
                  long-term and short-term goals of T-NETIX. They should
                  encourage growth and yet reward current profitability.

         (2)      Base salaries should be at or close to market but salaries
                  should be enhanced by bonus plans and stock option incentives
                  to provide opportunities for above market compensation to
                  retain employees key to T-NETIX's success.

         (3)      Cash bonus plans should be designed to provide incentives to
                  meet or exceed company goals, should reward both group and
                  individual performances, and should be flexible in their
                  design and application.

         (4)      Stock options should be awarded to reward performance and to
                  align executives interests with those of shareholders.

         The Compensation Committee believes its executive compensation program
effectively serves the interests of shareholders by allowing T-NETIX to attract
and retain talented executive personnel who have incentives to perform at the
highest levels.

         CEO Compensation. Thomas J. Huzjak served as T-NETIX's Chief Executive
Officer from August 1994 to December 1998. Prior thereto he was President and
Chief Operating Officer. In fiscal 1998, Mr. Huzjak received a base salary of
$240,000 in recognition of his duties. In accordance with the 1997 Management
Incentive Program, Mr. Huzjak was eligible to receive a bonus based upon
performance targets for revenue and earnings before income taxes (subject to
adjustments for extraordinary events). Mr. Huzjak received a bonus under the
1997 Management Incentive Program that was less than the maximum that could have
been received had the targets been fully achieved. The Committee recommended
that no additional stock options be granted to Mr. Huzjak at that time. For
fiscal 1999, Mr. Schopp will receive an annual salary of $180,000. Also, in
connection with his promotion, Mr. Schopp received options for 100,000 shares of
T-NETIX Stock under the ISO Plan. The exercise price is $5.00 per share, which
was the fair market value of T-NETIX Stock on the date of grant. The Committee
will continue to review all aspects of Mr. Schopp's compensation annually to
establish goals for the ensuing fiscal year against which his performance and
adjustments in compensation will be evaluated. For fiscal 1999, Mr. Schopp has
been given the opportunity to receive a bonus based upon performance targets.


                                     - 47 -

<PAGE>   55




         The foregoing report has been prepared by T-NETIX's Compensation
Committee.

                                            James L. Mann (Chairman)
                                            Robert A. Geist
                                            Daniel M. Carney

Company Performance

         The following table presents the cumulative total yearly shareholder
return for the T-NETIX Stock since November 8, 1994, the date of T-NETIX's
initial public offering, compared with the Nasdaq Market Index and the Nasdaq
Telecommunications Stock Index. The table assumes that $100 was invested on
November 8, 1994, and that all dividends were reinvested.

                             STOCK PRICE PERFORMANCE
                      COMPARISON OF CUMULATIVE TOTAL RETURN
                     T-NETIX, INC., NASDAQ MARKET INDEX AND
                      NASDAQ TELECOMMUNICATIONS STOCK INDEX

                          TOTAL RETURN TO STOCKHOLDERS
                  (ASSUMES $100 INVESTMENT ON NOVEMBER 8, 1994)

<TABLE>
<CAPTION>
                                                        Nasdaq
             Measurement Period                        Telecomm.         Nasdaq            Nasdaq
            (fiscal year covered)                        Index            Index        Composite (US)
            ---------------------                      ---------         -------       --------------
            <S>                                        <C>               <C>           <C>   
                  11-08-94                              100.00            100.00           100.00
                  07-31-95                              131.58            119.59           130.44
                  07-31-96                               92.11            120.84           140.79
                  07-31-97                               84.21            160.39           207.65
                  07-31-98                               84.21            261.11           243.95
</TABLE>


                             SHAREHOLDERS' PROPOSALS

         It is expected that the 2000 Annual Meeting of Shareholders of T-NETIX
will be held on May 11, 2000. Any proposals intended to be presented at the 2000
Annual Meeting must be received at T-NETIX's offices on or before November 5,
1999, in order to be considered for inclusion in T-NETIX's Proxy Statement and
form of proxy relating to such meeting.

         Any proposal from a T-NETIX shareholder to be presented at the 2000
Annual Meeting of Shareholders of T-NETIX that is submitted outside the
processes of Rule 14a-8 under the Exchange Act, and that therefore will not be
included in proxy materials to be sent to T-NETIX shareholders by T-NETIX, must
be received by the Secretary of T-NETIX not earlier than 180 days prior nor
later than 90 days prior to the date of such meeting in order to be considered
timely received by T-NETIX.


                                  LEGAL MATTERS

         Rothgerber Johnson & Lyons LLP will pass upon certain legal matters for
T-NETIX relating to the T-NETIX Stock to be issued pursuant to the Merger, as
well as the tax consequences of the Merger.


                                     - 48 -

<PAGE>   56


                                     EXPERTS

         The consolidated financial statements of T-NETIX as of July 31, 1998
and 1997, and for each of the years in the three-year period ended July 31,
1998, and the related schedule, have been incorporated by reference in this
Proxy Statement in reliance upon the reports of KPMG LLP, independent certified
public accountants, incorporated by reference herein, and upon the authority of
said firm as experts in accounting and auditing.

         The financial statements of Gateway as of December 31, 1997 and 1996,
and for the years then ended have been included herein and in this Proxy
Statement in reliance upon the report of KPMG LLP, independent certified public
accountants, and upon the authority of said firm as experts in accounting and
auditing.

         The financial statements of Gateway for the year ended December 31,
1995, have been included herein and in this Proxy Statement in reliance upon the
report of Doshier, Pickens, and Francis, P.C., independent certified public
accountants, and upon the authority of said firm as experts in accounting and
auditing.

         Representatives of KPMG LLP are expected to be present at the Special
Meeting, and these representatives will be available to respond to appropriate
questions.


                       WHERE YOU CAN FIND MORE INFORMATION

         T-NETIX files annual, quarterly and special reports, proxy statements
and other information with the SEC. Shareholders may read and copy any reports,
statements or other information that T-NETIX files at the SEC's public reference
rooms in Washington, D.C., New York, New York, and Chicago, Illinois. Please
call the SEC at 1-800-SEC-0330 for further information about the public
reference rooms. T-NETIX's public filings are also available from commercial
document retrieval services and at the Internet web site maintained by the SEC
at http://www.sec.gov.

         The SEC allows T-NETIX to "incorporate by reference" information into
this Proxy Statement, which means that T-NETIX can disclose important
information to shareholders by referring them to another document filed
separately with the SEC. The information incorporated by reference is deemed to
be part of this Proxy Statement, except for any information superseded by
information contained directly herein. This Proxy Statement incorporates by
reference the documents set forth below that T-NETIX has previously filed with
the SEC. These documents contain important information about T-NETIX and its
financial condition.

<TABLE>
<CAPTION>
         T-NETIX SEC Filings (File No. 0-25016)               Period
         --------------------------------------               ------
         <S>                                                  <C>
         Annual Report on Form 10-K                           Year ended July 31, 1998

         Transition Report on Form 10-QT                      Transition period from August 1, 1998, through
                                                              December 31, 1998

         Current Reports on Form 8-K                          Filed December 15, 1998
                                                              Filed December 31, 1998
</TABLE>

         Additional documents that T-NETIX may file with the SEC between the
date of this Proxy Statement and the date of the Special Meeting are also
incorporated by reference. These include any periodic reports, such as Annual
Reports on Form 10-K, Quarterly Reports on Form 10-Q and Current Reports on Form
8-K, as well as any proxy statements. The Annual Report on Form 10-K and
Transition Report on Form 10-QT referred to above are enclosed with this Proxy
Statement.

         You can obtain any of the documents incorporated by reference in, but
not included with, this Proxy Statement from T-NETIX without charge, excluding
all exhibits unless T-NETIX has specifically incorporated by


                                     - 49 -

<PAGE>   57




reference an exhibit in this Proxy Statement, by requesting them in writing or
by telephone from the following address:

                            T-NETIX, Inc.
                            Attn:  John Giannaula, Corporate Secretary
                            67 Inverness Drive East, Suite 100
                            Englewood, Colorado 80112
                            Telephone:  (303) 790-9111

         Please request documents by March 15, 1999, to ensure receipt before
the meeting of shareholders described herein. Incorporated documents requested
by shareholders will be mailed by first class mail, or other equally prompt
means, within one business day of receipt of your request.

         SHAREHOLDERS SHOULD RELY ONLY ON THE INFORMATION CONTAINED OR
INCORPORATED BY REFERENCE IN THIS PROXY STATEMENT TO VOTE THEIR SHARES AT THE
SPECIAL MEETING. NO ONE HAS BEEN AUTHORIZED TO PROVIDE ANY INFORMATION THAT IS
DIFFERENT FROM WHAT IS CONTAINED IN THIS PROXY STATEMENT. THIS PROXY STATEMENT
IS DATED FEBRUARY 26, 1999. SHAREHOLDERS SHOULD NOT ASSUME THAT THE INFORMATION
CONTAINED IN THE PROXY STATEMENT IS ACCURATE AS OF ANY DATE OTHER THAN THAT
DATE, AND NEITHER THE MAILING OF THIS PROXY STATEMENT TO SHAREHOLDERS NOR THE
ISSUANCE OF T-NETIX STOCK IN THE MERGER WILL CREATE ANY IMPLICATION TO THE
CONTRARY.


                              CAUTIONARY STATEMENT
                      CONCERNING FORWARD-LOOKING STATEMENTS

         T-NETIX has made forward-looking statements in this document and the
documents incorporated by reference herein or included as an appendices hereto
that are subject to risks and uncertainties. These statements are based on
management's beliefs and assumptions, based on information currently available
to management. Forward-looking statements include the information concerning
possible or assumed future results of operations of T-NETIX and Gateway set
forth (1) under "Summary," "Risk Factors," "The Merger--Background of the
Merger," "-- Reasons for the Merger"; "--Recommendations of the Boards of
Directors" and "Unaudited Pro Forma Condensed Combined Financial Information";
(2) under "Business" and "Management's Discussion and Analysis of Financial
Condition and Results of Operations" herein and in the T-NETIX Annual Report on
Form 10-K and Transition Report on Form 10-QT incorporated by reference into
this document; and (3) in this document and the documents incorporated herein by
reference preceded by, followed by, or that include the words "anticipate,"
"believe," "effect," "estimate," "expect," "intend," "plan" or similar
expressions.

          Forward-looking statements are not guarantees of performance. They
involve risks, uncertainties and assumptions. The future results and shareholder
value of T-NETIX may differ materially from those expressed in these
forward-looking statements. Many of the factors that will determine these
results and values are beyond T-NETIX's ability to control or predict.
Shareholders are cautioned not to put undue reliance on any forward- looking
statements. For those statements, T-NETIX claims the protection of the safe
harbor for forward-looking statements contained in the Private Securities
Litigation Reform Act of 1995.

         Shareholders of T-NETIX should understand that included among the many
possible events or factors that could materially affect the future financial
results and performance of T-NETIX, in addition to those discussed elsewhere
herein and in the documents which are incorporated by reference into this Proxy
Statement, are the following important factors:

         1.       Our revenues after the merger may be lower than expected;

         2.       Competition among specialized call processing services
                  companies may increase;


                                     - 50 -

<PAGE>   58


         3.       We may have more trouble integrating our businesses after the
                  merger than we expect;

         4.       General economic conditions may change or be worse than we
                  expect;

         5.       Legislative or regulatory changes may adversely affect our
                  business;

         6.       Technology-related changes, including "Year 2000" data systems
                  compliance, may be harder to make or more expensive than we
                  expect;

         7.       The demand for the combined company's products and services
                  and market acceptance risks may affect the potential
                  technological obsolescence of existing systems;

         8.       Existing site specific customer contracts may not be renewed;

         9.       Retaining the base of current site specific customer contracts
                  may be more difficult than we expect;

         10.      Continued relationships with existing customers may become
                  strained;

         11.      We may not be able to reduce expenditures in our SpeakEZ
                  Division as quickly or in as high an amount as we expect;

         12.      We may not be able to successfully license voice verification
                  and fraud prevention technology;

         13.      We may not have the continuing ability to develop hardware and
                  software products;

         14.      Commercialization and technological issues may prove more
                  difficult than we expect;

         15.      Manufacturing capacity and product supply may be more
                  constrained than we expect;

         16.      There may be fewer actual purchases by current and prospective
                  customers under existing and expected agreements than we
                  expect;

         17.      The progress of contract implementation efforts that allow
                  T-NETIX and Gateway to recognize revenue under its accounting
                  policies may be slower than we expect; and

         18.      The results of financing efforts may not be favorable.


                          UNAUDITED PRO FORMA CONDENSED
                         COMBINED FINANCIAL INFORMATION

         The following unaudited pro forma condensed combined financial
information (the "Unaudited Pro Forma Information") gives effect to the Merger
under the pooling of interests method of accounting. The Unaudited Pro Forma
Information is presented to reflect the estimated impact of the Merger and the
issuance of 5.0375 shares of T-NETIX Stock for each share of Gateway Stock
issued and outstanding. As of the record date for Gateway's special meeting of
shareholders for consideration of the Merger, there were approximately 729,000
shares of Gateway Stock issued and outstanding. The Unaudited Pro Forma
Information assumes the issuance of approximately 4,048,000 shares of T-NETIX
Stock in the Merger (assuming no T-NETIX Reserve Shares are issued). See "The
Merger--Accounting Treatment."

         The Unaudited Pro Forma Information is presented as if the Merger had
been consummated as of August 1, 1995, for the unaudited pro forma condensed
combined statements of income and as of December 31, 1998, for the unaudited pro
forma condensed combined balance sheet. Certain adjustments to the data
presented


                                     - 51 -

<PAGE>   59



have also been made to reflect the different fiscal years of T-NETIX and Gateway
(see "--Notes to Unaudited Pro Forma Condensed Combined Statements of Income and
Balance Sheet--Basis of Presentation," below). All column headings used in the
Unaudited Pro Forma Information refer to the period-end date of T-NETIX.

         The Unaudited Pro Forma Information gives effect to the
reclassifications and adjustments set forth in the accompanying Notes to
Unaudited Pro Forma Condensed Combined Financial Statements and does not reflect
any cost savings that may result from the Merger. See "The Merger--Reasons for
the Merger; Recommendation of the Board." The Unaudited Pro Forma Information is
not necessarily indicative of the operating results and financial position that
might have been achieved had the Merger been consummated (on the dates or as of
the beginning of each period indicated), nor is it necessarily indicative of
operating results and financial position which may occur in the future.

         The Unaudited Pro Forma Information should be read in conjunction with
the historical consolidated financial statements of T-NETIX contained in its
Annual Report on Form 10-K and the unaudited consolidated interim financial
statements contained in its Transition Report on Form 10-QT for the five months
ended December 31, 1998, and for Gateway attached to this document. See "Where
You Can Find More Information."



                                     - 52 -

<PAGE>   60




                         T-NETIX, INC. AND SUBSIDIARIES
                          UNAUDITED PRO FORMA CONDENSED
                        COMBINED STATEMENT OF OPERATIONS
                      (in thousands, except per share data)

<TABLE>
<CAPTION>
                                                            Five Months Ended December 31, 1998                  
                                                    --------------------------------------------------
                                                                                 Pro Forma   Pro Forma
                                                    T-NETIX       Gateway       Adjustments   Combined
                                                    --------      --------      -----------  ---------
<S>                                                 <C>           <C>           <C>          <C>     
REVENUE:
     Telecommunications services                    $ 13,288      $  3,452      $     --      $ 16,740
     Telecommunications licensing                         47            21           (68)(a)        --
     Direct call provisioning                          1,595         8,214            --         9,809
     Voice print                                         158            --            --           158
     Equipment sales                                      --           921            --           921
                                                    --------      --------      --------      --------
         Total revenue                                15,088        12,608           (68)       27,628

EXPENSES:
     Operating costs and expenses
         Telecommunications services                   6,878           536           (52)(d)     7,362
         Direct call provisioning                      1,503         7,247          (123)(d)     8,627
         Voice print                                     510            --            --           510
         Cost of equipment sold                           --           390           (14)(d)       376
                                                    --------      --------      --------      --------
             Total operating costs and expenses        8,891         8,173          (189)       16,875
     Selling, general and administrative               4,390         2,465            --         6,855
     Research and development                          1,036           724            --         1,760
     Depreciation and amortization                     3,289           821            --         4,110
                                                    --------      --------      --------      --------
         Total expenses                               17,606        12,183          (189)       29,600

         Operating income (loss)                      (2,518)          425           121        (1,972)
     Interest and other income expense                  (420)         (941)           --        (1,361)
                                                    --------      --------      --------      --------
         Earnings (loss) before income taxes          (2,938)         (516)          121        (3,333)
     Income taxes                                        750           171           (41)          880
                                                    --------      --------      --------      --------
Net earnings (loss)                                 $ (2,188)     $   (345)     $     80      $ (2,453)
                                                    ========      ========      ========      ========

Diluted earnings (loss) per common share            $  (0.26)     $  (0.44)                   $  (0.19)
                                                    ========      ========                    ========
                                                                                    (780)(b)
Weighted average common shares                         8,551           780         4,048 (b)    12,599
                                                    ========      ========      ========      ========
</TABLE>

The accompanying notes are an integral part of this pro forma information.



                                     - 53 -

<PAGE>   61



                         T-NETIX, INC. AND SUBSIDIARIES
                          UNAUDITED PRO FORMA CONDENSED
                        COMBINED STATEMENT OF OPERATIONS
                      (in thousands, except per share data)

<TABLE>
<CAPTION>
                                                            Five Months Ended December 31, 1997                  
                                                    -----------------------------------------------------
                                                                                 Pro Forma      Pro Forma
                                                    T-NETIX       Gateway       Adjustments      Combined
                                                    --------      --------      -----------     ---------
<S>                                                 <C>           <C>           <C>             <C>     
REVENUE:
     Telecommunications services                    $ 14,795      $  2,684      $        --     $  17,479
     Telecommunications licensing                         56            62             (118)(a)        --
     Direct call provisioning                            878         7,634               --         8,512
     Voice print                                         408            --               --           408
     Equipment sales                                      --           650               --           650
                                                    --------      --------      -----------     ---------
         Total revenue                                16,137        11,030             (118)       27,049

EXPENSES:
     Operating costs and expenses
         Telecommunications services                   6,656           323              (40)(d)     6,939
         Direct call provisioning                        835         6,469             (114)(d)     7,190
         Voice print                                      68            --               --            68
         Cost of equipment sold                           --           341              (10)(d)       331
                                                    --------      --------      -----------     ---------
             Total operating costs and expenses        7,559         7,133             (164)       14,528
     Selling, general and administrative               3,025         1,923               --         4,948
     Research and development                            978           383               --         1,361
     Depreciation and amortization                     3,507           606               --         4,113
                                                    --------      --------      -----------     ---------
         Total expenses                               15,069        10,045             (164)       24,950

         Operating income (loss)                       1,068           985               46         2,099
     Interest and other income expense                  (446)         (282)              --          (728)
                                                    --------      --------      -----------     ---------
         Earnings (loss) before income taxes             622           703               46         1,371
     Income taxes                                       (155)         (243)             (16)         (414)
                                                    --------      --------      -----------     ---------
Net earnings (loss)                                 $    467      $    460      $        30      $    957
                                                    ========      ========      ===========     =========

Diluted earnings (loss) per common share            $   0.05      $   0.59                      $    0.07
                                                    ========      ========                      =========
                                                                                       (751)(b)
Weighted average common shares                         9,126           751            4,048 (b)    13,174
                                                    ========      ========      ===========     =========
</TABLE>

The accompanying notes are an integral part of this pro forma information.



                                      -54-

<PAGE>   62


                         T-NETIX, INC. AND SUBSIDIARIES
                          UNAUDITED PRO FORMA CONDENSED
                        COMBINED STATEMENT OF OPERATIONS
                      (in thousands, except per share data)
<TABLE>
<CAPTION>

                                                                  Year Ended July 31, 1998
                                                  ---------------------------------------------------------
                                                                               Pro Forma         Pro Forma
                                                   T-NETIX       Gateway      Adjustments        Combined
                                                  ----------    ----------    -----------        ----------       
<S>                                               <C>           <C>           <C>                <C>                     
REVENUE:
     Telecommunications services                  $   34,860    $    7,538    $     --           $   42,398              
     Telecommunications licensing                        205            41          (246)(a)            --        
     Direct call provisioning                          2,516        19,701          --               22,217       
     Voice print                                         632          --            --                  632       
     Equipment sales                                    --           1,694          --                1,694       
                                                  ----------    ----------    ----------         ----------       
         Total revenue                                38,213        28,974          (246)            66,941       
                                                                                                                  
EXPENSES:                                                                                                         
     Operating costs and expenses                                                                                 
         Telecommunications services                  15,920           977          (112)(d)         16,785       
         Direct call provisioning                      2,311        16,906          (295)(d)         18,922       
         Voice print                                      78          --            --                   78       
         Cost of equipment sold                         --             801           (25)(d)            776       
                                                  ----------    ----------    ----------         ----------       
             Total operating costs and expenses       18,309        18,684          (432)            36,561       
     Selling, general and administrative               7,448         5,387          --               12,835       
     Research and development                          2,354         1,123          --                3,477       
     Depreciation and amortization                     8,250         1,656          --                9,906       
                                                  ----------    ----------    ----------         ----------       
         Total expenses                               36,361        26,850          (432)            62,779       
                                                                                                                  
         Operating income (loss)                       1,852         2,124           186              4,162       
     Interest and other income expense                (1,055)         (614)         --               (1,669)      
                                                  ----------    ----------    ----------         ----------       
         Earnings (loss) before income taxes             797         1,510           186              2,493       
     Income taxes                                       (198)         (541)          (63)              (802)      
                                                  ----------    ----------    ----------         ----------       
Net earnings (loss)                               $      599    $      969    $      123         $    1,691       
                                                  ==========    ==========    ==========         ==========       
                                                                                                                  
Diluted earnings (loss) per common share          $     0.07    $     1.24                       $     0.13       
                                                  ==========    ==========                       ==========       
                                                                                    (762)(b)                      
Weighted average common shares                         9,206           762         4,048 (b)         13,254       
                                                  ==========    ==========    ==========         ==========       
</TABLE>


The accompanying notes are an integral part of this pro forma information.



                                      -55-

<PAGE>   63



                         T-NETIX, INC. AND SUBSIDIARIES
                          UNAUDITED PRO FORMA CONDENSED
                        COMBINED STATEMENT OF OPERATIONS
                      (in thousands, except per share data)

<TABLE>
<CAPTION>

                                                                       Year Ended July 31, 1997 
                                                  -------------------------------------------------------------------
                                                                                    Pro Forma            Pro Forma
                                                     T-NETIX         Gateway       Adjustments            Combined
                                                  ------------    ------------    ------------           ------------  
<S>                                               <C>             <C>             <C>                    <C>           
REVENUE:
     Telecommunications services                  $     33,471    $      6,083    $       --             $     39,554  
     Telecommunications licensing                          750              62             (62)(a)                750  
     Direct call provisioning                            1,395          17,656            --                   19,051  
     Voice print                                           676            --              --                      676  
     Equipment sales                                      --             2,212            --                    2,212  
                                                  ------------    ------------    ------------           ------------  
         Total revenue                                  36,292          26,013             (62)                62,243  
                                                                                                                       
EXPENSES:                                                                                                              
     Operating costs and expenses                                                                                      
         Telecommunications services                    14,478             784             (92)(d)             15,170  
         Direct call provisioning                        1,297          15,165            (264)(d)             16,198  
         Voice print                                       170            --              --                      170  
         Cost of equipment sold                           --             1,128             (29)(d)              1,099  
                                                  ------------    ------------    ------------           ------------  
             Total operating costs and expenses         15,945          17,077            (385)                32,637  
     Selling, general and administrative                 7,488           4,328            --                   11,816  
     Research and development                            2,769             785            --                    3,554  
     Depreciation and amortization                       8,135           1,411            --                    9,546  
                                                  ------------    ------------    ------------           ------------  
         Total expenses                                 34,337          23,601            (385)                57,553  
                                                                                                                       
         Operating income (loss)                         1,955           2,412             323                  4,690  
     Interest and other income expense                    (932)           (651)           --                   (1,583) 
                                                  ------------    ------------    ------------           ------------  
         Earnings (loss) before income taxes             1,023           1,761             323                  3,107  
     Income taxes                                         (432)           (607)           (110)                (1,149) 
                                                  ------------    ------------    ------------           ------------  
Net earnings (loss)                               $        591    $      1,154    $        213           $      1,958  
                                                  ============    ============    ============           ============  
                                                                                                                       
Diluted earnings (loss) per common share          $       0.06    $       1.48                           $       0.15  
                                                  ============    ============                           ============  
                                                                                          (779)(b)
Weighted average common shares                           9,156             779           4,048 (b)             13,204  
                                                  ============    ============    ============           ============  
</TABLE>

The accompanying notes are an integral part of this pro forma information.



                                      -56-

<PAGE>   64


                         T-NETIX, INC. AND SUBSIDIARIES
                          UNAUDITED PRO FORMA CONDENSED
                        COMBINED STATEMENT OF OPERATIONS
                      (in thousands, except per share data)

<TABLE>
<CAPTION>

                                                                Year Ended July 31, 1996 
                                                  -------------------------------------------------------
                                                                               Pro Forma        Pro Forma
                                                   T-NETIX        Gateway     Adjustments       Combined
                                                  ----------    ----------    -----------      ----------
<S>                                               <C>           <C>           <C>              <C>       
REVENUE:
     Telecommunications services                  $   30,249    $    5,552    $     --         $   35,801
     Telecommunications licensing                       --            --            --               --
     Direct call provisioning                          3,072        14,383          --             17,455
     Voice print                                          57          --            --                 57
     Equipment sales                                    --             498          --                498
                                                  ----------    ----------    ----------       ----------
         Total revenue                                33,378        20,433          --             53,811

EXPENSES:
     Operating costs and expenses
         Telecommunications services                  13,489           726           (81)(d)       14,134
         Direct call provisioning                      2,940        12,863          (216)(d)       15,587
         Voice print                                    --            --            --               --
         Cost of equipment sold                         --             299           (18)(d)          281
                                                  ----------    ----------    ----------       ----------
             Total operating costs and expenses       16,429        13,888          (315)          30,002
     Selling, general and administrative               6,434         5,176          --             11,610
     Research and development                          2,374           485          --              2,859
     Depreciation and amortization                     5,920         1,282          --              7,202
                                                  ----------    ----------    ----------       ----------
         Total expenses                               31,157        20,831          (315)          51,673

         Operating income (loss)                       2,221          (398)          315            2,138
     Interest and other income expense                  (548)         (364)         --               (912)
                                                  ----------    ----------    ----------       ----------
         Earnings (loss) before income taxes           1,673          (762)          315            1,226
     Income taxes                                        (46)          248          (107)              95
                                                  ----------    ----------    ----------       ----------
Net earnings (loss)                               $    1,627    $     (514)   $      208       $    1,321
                                                  ==========    ==========    ==========       ==========

Diluted earnings (loss) per common share          $     0.18    $    (0.83)                    $     0.10
                                                  ==========    ==========                     ==========
                                                                                    (666)(b)
Weighted average common shares                         8,814           666         4,048 (b)       12,862
                                                  ==========    ==========    ==========       ==========
</TABLE>

The accompanying notes are an integral part of this pro forma information.



                                      -57-

<PAGE>   65


                         T-NETIX, INC. AND SUBSIDIARIES
              UNAUDITED PRO FORMA CONDENSED COMBINED BALANCE SHEET
                                 (in thousands)

<TABLE>
<CAPTION>

                                                                    December 31, 1998 
                                                  ---------------------------------------------------------
                                                                               Pro Forma          Pro Forma
                                                   T-NETIX        Gateway     Adjustments          Combined
                                                  ----------    ----------    ----------          ----------
<S>                                               <C>           <C>           <C>                 <C>       
ASSETS:
Cash and cash equivalents                         $      463    $       10    $     --            $      473
Accounts receivable                                   11,510         5,737          --                17,247
Prepaid expenses                                         595         1,426          --                 2,021
Inventory                                               --             110          --                   110
Investments                                             --            --            --                  --
Property and equipment
     Telecommunications equipment                     43,439         8,714           (68)(a)          52,085
     Construction in progress                          4,078         1,157          --                 5,235
     Office equipment                                  5,758         1,527          --                 7,285
                                                  ----------    ----------    ----------          ----------
Property and equipment                                53,275        11,398           (68)             64,605
     Less accumulated depreciation                   (27,728)       (5,090)         --               (32,818)
                                                  ----------    ----------    ----------          ----------
Property and equipment, net                           25,547         6,308           (68)             31,787
Patent license rights                                  1,877          --            --                 1,877
Goodwill, net                                          2,173         3,235          --                 5,408
Software development costs, net                        3,016          --            --                 3,016
Other assets, net                                      3,482         1,235          --                 4,717
                                                  ----------    ----------    ----------          ----------

     Total assets                                 $   48,663    $   18,061    $      (68)         $   66,656
                                                  ==========    ==========    ==========          ==========

LIABILITIES AND SHAREHOLDERS EQUITY:

Accounts payable                                  $    3,056    $    2,408    $     --            $    5,464
Accrued liabilities                                    4,127         1,507         1,500(c)            7,134
Debt                                                  15,160        10,337          --                25,497
                                                  ----------    ----------    ----------          ----------
     Total liabilities                                22,343        14,252         1,500              38,095

SHAREHOLDERS' EQUITY:
Preferred stock                                         --            --            --                  --
Common stock                                              85           729          --                   814
Additional paid-in capital                            27,963         4,424          --                32,387
Retained earnings                                     (1,728)       (1,344)       (1,568)(a)(c)       (4,640)
                                                  ----------    ----------    ----------          ----------
     Total shareholders' equity                       26,320         3,809        (1,568)             28,561
                                                  ----------    ----------    ----------          ----------

     Total liabilities and shareholders' equity   $   48,663    $   18,061    $      (68)         $   66,656
                                                  ==========    ==========    ==========          ==========
</TABLE>

The accompanying notes are an integral part of this pro forma information.



                                      -58-

<PAGE>   66


NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENTS OF INCOME AND
BALANCE SHEET

I.       BASIS OF PRESENTATION

         The unaudited pro forma condensed combined financial statements
reflect the Merger accounted for under the pooling of interests method. The
unaudited pro forma condensed combined statements of income for each year in
the three-year period ended July 31, 1998, and for the five month periods ended
December 31, 1998 and 1997, give effect to the Merger as though it had occurred
on August 1, 1995. The unaudited pro forma condensed combined balance sheet as
of December 31, 1998, assumes that the Merger had been consummated on that
date.

         The unaudited pro forma condensed combined statements of income
present financial information for T-NETIX for five months ended December 31,
1998 and 1997, and the fiscal years ended July 31, 1998, 1997, and 1996, and
the financial information of Gateway for the five months ended November 30,
1998 and 1997, and the recast financial information for the twelve-month period
ended July 31, 1998, and the years ended December 31, 1997, and 1996. Gateway's
fiscal year ends December 31.

         The unaudited pro forma condensed combined balance sheet presents the
balance sheet of T-NETIX as of December 31, 1998, and the balance sheet of
Gateway as of November 30, 1998.

         The unaudited pro forma condensed combined statements of income
exclude the positive effects of potential cost savings which may be achieved
upon combining the resources of the companies and non-recurring transaction
costs of approximately $1.5 million, including investment banking, legal, and
accounting fees. These transaction costs will be reflected in the results of
operations in the first period reported by the combined company. Further,
T-NETIX expects to restructure the combined company, resulting in additional
non-recurring charges. The range of amounts and timing of such charges cannot
be reasonably estimated until an analysis of the newly combined operations is
completed and a detailed restructuring plan is developed, but such charges may
be material.

II.      PRO FORMA ADJUSTMENTS

         (a) Represents elimination of intercompany licensing revenue between
T-NETIX and Gateway.

         (b) Represents an adjustment to reflect the combined weighted average
number of common shares of T-NETIX and Gateway, reflecting the assumed issuance
of approximately 3,673,000 shares of T-NETIX Stock in exchange for
approximately 729,000 shares of Gateway Stock outstanding utilizing an exchange
ratio of 5.0375 shares of T-NETIX Stock for each share of Gateway Stock and
approximately 375,000 shares issued to certain shareholders of Gateway in
exchange for terminating the Royalty Agreement.

         (c) Reflects an accrual for the estimated $1,500,000 transaction costs
related to the Merger.

         (d) Represents elimination of royalty expense relating to the Royalty
Agreement. In exchange for their terminating the Royalty Agreement, T-NETIX will
issue 375,339 shares of T-NETIX Stock to the Royalty Owners. No intangible asset
has been reflected on the pro forma balance sheet as the asset contributed by
the Royalty Owners in exchange for the T-NETIX Stock had no cost basis
immediately prior to the Merger.

III.     RECENT ACQUISITION

         On December 31, 1998, T-NETIX exercised its option to acquire 100% of
the common stock of Cell-Tel Monitoring, Inc. ("Cell-Tel"), a Florida
corporation. Cell-Tel engaged in the sales, marketing, research and development
of a prisoner/parolee electronic monitoring device utilizing the Internet and
using T-NETIX's SpeakEZ Voice Printer(R) technology. The purchase price was
approximately $3.8 million, consisting of the conversion of $2.0 million of
Cell-Tel preferred stock and an additional $1.8 million in cash and acquisition
costs. The acquisition has been accounted for by the purchase method of
accounting, and, accordingly, the results of operations for Cell-Tel for the
period beginning January 1, 1999, will be included in T-NETIX's financial
statements. Assets acquired and liabilities assumed have been recorded at their
estimated fair values and are subject to adjustment when additional information
concerning asset and liability valuations is finalized.



                                     -59-

<PAGE>   67


         The excess of cost over the estimated fair value of net assets
acquired was allocated to goodwill. A total of $2,173,000 was allocated to
goodwill which will be amortized on a straight-line basis over 7 years. The
remaining net assets were allocated primarily to software development costs and
office equipment.

         The following unaudited pro forma information presents the results of
operations of T-NETIX as if the acquisition had taken place on August 1, 1998,
and 1997.

<TABLE>
<CAPTION>

                                             Five Months
                                                Ended                 Year Ended July 31  
                                           December 31, 1998  ----------------------------------
                                           -----------------        1998              1997
                                                              ---------------    ---------------
<S>                                        <C>                <C>                <C>            
Revenue                                    $        15,088    $        38,213    $        36,292
Net earnings (loss)                                 (2,896)              (157)               472
Diluted earnings (loss) per common share             (0.34)             (0.02)             (0.05)
</TABLE>

         These pro forma results of operations have been prepared for
comparative purposes only and do not purport to be indicative of the results of
operations which actually would have resulted had the acquisition occurred on
the date indicated, or which may result in the future.

IV.      FEDERAL INCOME TAX CONSEQUENCES OF THE MERGER

         The unaudited pro forma condensed combined financial statements assume
that the Merger qualifies as a tax-free reorganization for federal income tax
purposes.



                                     -60-
<PAGE>   68



                           GATEWAY TECHNOLOGIES, INC.

                              Financial Statements

                        December 31, 1997, 1996 and 1995

                   (With Independent Auditors' Report Thereon)





<PAGE>   69
                          INDEPENDENT AUDITORS' REPORT


To the Board of Directors and Shareholders
Gateway Technologies, Inc.:


We have audited the accompanying balance sheets of Gateway Technologies, Inc. as
of December 31, 1997 and 1996, and the related statements of operations,
stockholders' equity, and cash flows for the years then ended. These financial
statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based on
our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in
all material respects, the financial position of Gateway Technologies, Inc. as
of December 31, 1997 and 1996, and the results of its operations and its cash
flows for the years then ended in conformity with generally accepted accounting
principles.




                                    KPMG LLP



Dallas, Texas
March 13, 1998


                                      F-1
<PAGE>   70
                          INDEPENDENT AUDITORS' REPORT


To the Board of Directors and Shareholders
Gateway Technologies, Inc.:


We have audited the accompanying statements of operations, stockholders' equity,
and cash flows of Gateway Technologies, Inc. for the year ended December 31,
1995. These financial statements are the responsibility of the Company's
management. Our responsibility is to express an opinion on these financial
statements based on our audit.

We conducted our audit in accordance with generally accepted auditing standards.
Those standards require that we plan and perform the audit to obtain reasonable
assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audit provides a reasonable basis for our opinion.

In our opinion, the financial statements of Gateway Technologies, Inc. referred
to above present fairly, in all material respects, the results of its operations
and its cash flows for the year ended December 31, 1995 in conformity with
generally accepted accounting principles.




                                      DOSHIER, PICKENS & FRANCIS, P.C.



Amarillo, Texas
March 5, 1996



                                      F-2
<PAGE>   71
                           GATEWAY TECHNOLOGIES, INC.

                                 Balance Sheets

                    (amounts in thousands, except share data)

<TABLE>
<CAPTION>
                                                                          NOVEMBER 30,               DECEMBER 31,
                                                                                            ------------------------------
                              ASSETS                                          1998              1997              1996
                                                                          ------------      ------------      ------------
                                                                           (UNAUDITED)

<S>                                                                       <C>               <C>               <C>
Cash                                                                      $         10               175               209
Accounts receivable, net of allowance for doubtful accounts
    of $933 in 1998, $820 in 1997 and $996 in 1996 (note 5)                      5,737             5,037             3,215
Prepaid expenses                                                                 1,426               398               192
Property and equipment, net (notes 3 and 5)                                      6,308             5,236             4,669
Intangible assets, net (note 4)                                                  3,649             1,616             1,606
Deferred tax assets (note 6)                                                       420               415               526
Investment                                                                          --               600               600
Other assets                                                                       511               795               726
                                                                          ------------      ------------      ------------

               Total assets                                               $     18,061            14,272            11,743
                                                                          ============      ============      ============

               LIABILITIES AND STOCKHOLDERS' EQUITY

Accounts payable                                                          $      2,408             1,962             1,820
Accrued liabilities                                                              1,057               652             1,175
Federal income taxes payable                                                        --               319                -- 
Indebtedness (note 5)                                                            3,272             2,816             2,502
Notes payable to stockholders (notes 5 and 8)                                    4,800             2,200             2,200
Advances on direct call processing (note 5)                                      2,265             2,212             1,710
Deferred tax liabilities (note 6)                                                  450               386               329
                                                                          ------------      ------------      ------------

               Total liabilities                                                14,252            10,547             9,736

Series A redeemable preferred stock, 6% cumulative, nonvoting,
    nonparticipating, $1 par value, 250,000 shares authorized,
    none and 29,996 shares issued and outstanding at
    November 30, 1998, December 31, 1997 and 1996,
    respectively (note 7)                                                           --               600               600

Stockholders' equity (note 9):
    Common stock, $1 par value, 1,000,000 shares authorized,
       735,504, 705,861 and 665,861 issued and outstanding
       at November 30, 1998, December 31, 1997 and 1996,
       respectively                                                                736               706               666
    Paid-in capital                                                              4,417             3,850             3,290
    Accumulated deficit                                                         (1,344)           (1,431)           (2,549)
                                                                          ------------      ------------      ------------

               Total stockholders' equity                                        3,809             3,125             1,407

Commitments (note 10)
                                                                          ------------      ------------      ------------
               Total liabilities and stockholders' equity                 $     18,061            14,272            11,743
                                                                          ============      ============      ============
</TABLE>


See accompanying notes to financial statements.


                                       F-3
<PAGE>   72
                           GATEWAY TECHNOLOGIES, INC.

                            Statements of Operations

             (amounts in thousands, except share and per share data)



<TABLE>
<CAPTION>
                                                            ELEVEN MONTHS
                                                           ENDED NOVEMBER 30,                    YEARS ENDED DECEMBER 31,
                                                                                       ------------------------------------------
                                                          1998            1997            1997            1996            1995
                                                       ----------      ----------      ----------      ----------      ----------
                                                              (UNAUDITED)

<S>                                                    <C>              <C>             <C>            <C>             <C>   
Revenues:
    Direct call processing                             $   18,378          15,904          17,656          14,383          10,212
    Telecommunication services                              7,495           5,480           6,145           5,552           4,648
    Equipment sales                                         1,867           1,939           2,212             498           1,411
                                                       ----------      ----------      ----------      ----------      ----------

            Total revenues                                 27,740          23,323          26,013          20,433          16,271
                                                       ----------      ----------      ----------      ----------      ----------

Expenses:
    Operating expenses:
      Direct call processing                               16,112          13,767          15,165          12,863           9,163
      Telecommunication services                            1,033             669             784             726             700
      Cost of equipment sold                                  746             949           1,128             299             597
                                                       ----------      ----------      ----------      ----------      ----------

            Total operating expenses                       17,891          15,385          17,077          13,888          10,460
                                                       ----------      ----------      ----------      ----------      ----------

    Selling, general and administrative                     5,403           3,939           4,328           5,176           4,136
    Research and development                                1,340             711             785             485             461
    Depreciation and amortization                           1,699           1,279           1,411           1,282             921
                                                       ----------      ----------      ----------      ----------      ----------

            Total expenses                                 26,333          21,314          23,601          20,831          15,978
                                                       ----------      ----------      ----------      ----------      ----------

            Operating income (loss)                         1,407           2,009           2,412            (398)            293
                                                       ----------      ----------      ----------      ----------      ----------

Other income (expense):
    Interest expense                                         (444)           (400)           (440)           (403)           (251)
    Interest expense - related
            party (note 8)                                   (253)           (202)           (220)           (160)           (129)
    Other, net                                               (513)              6               9             199             711
                                                       ----------      ----------      ----------      ----------      ----------

            Total other income (expense)                   (1,210)           (596)           (651)           (364)            331
                                                       ----------      ----------      ----------      ----------      ----------

            Income (loss) before income taxes                 197           1,413           1,761            (762)            624

Income tax expense (benefit) (note 6)                          75             489             607            (248)            229
                                                       ----------      ----------      ----------      ----------      ----------

            Net  income (loss)                                122             924           1,154            (514)            395

Preferred stock dividends (note 7)                              9              36              36              36              27
                                                       ----------      ----------      ----------      ----------      ----------

            Net income (loss) available
              to common stockholders                   $      113             888           1,118            (550)            368
                                                       ==========      ==========      ==========      ==========      ==========

Basic earnings (loss) per common share                 $     0.15            1.26            1.59           (0.83)           0.60
                                                       ==========      ==========      ==========      ==========      ==========

Diluted earnings (loss) per common share               $     0.15            1.19            1.48           (0.83)           0.60
                                                       ==========      ==========      ==========      ==========      ==========

Weighted average common shares - basic                 $  730,114         703,158         703,383         665,579         609,904
                                                       ==========      ==========      ==========      ==========      ==========

Weighted average common shares - diluted               $  774,119         778,600         778,825         665,579         609,904
                                                       ==========      ==========      ==========      ==========      ==========
</TABLE>


See accompanying notes to financial statements.



                                       F-4
<PAGE>   73

                           GATEWAY TECHNOLOGIES, INC.

                       Statements of Stockholders' Equity

                Years ended December 31, 1997, 1996 and 1995 and
              unaudited eleven month period ended November 30, 1998

                    (amounts in thousands, except share data)




<TABLE>
<CAPTION>
                                                                           
                                                      COMMON STOCK                                                       TOTAL
                                               -------------------------     PAID-IN      ACCUMULATED     TREASURY    STOCKHOLDERS'
                                                  SHARES      PAR VALUE      CAPITAL        DEFICIT         STOCK        EQUITY
                                               -----------   -----------   -----------    -----------    -----------  -------------

<S>                                            <C>           <C>           <C>            <C>            <C>          <C>
Balances at December 31, 1994                      597,387   $       597         2,499         (2,367)            --            729

Issuance of common stock to
    employees                                       18,474            19            92             --             --            111

Net income                                              --            --            --            395             --            395

Dividends paid to preferred stockholders                --            --            --            (27)            --            (27)
                                               -----------   -----------   -----------    -----------    -----------    -----------

Balances at December 31, 1995                      615,861           616         2,591         (1,999)            --          1,208

Issuance of common stock                            50,000            50           699             --             --            749

Net loss                                                --            --            --           (514)            --           (514)

Dividends paid to preferred stockholders                --            --            --            (36)            --            (36)
                                               -----------   -----------   -----------    -----------    -----------    -----------

Balances at December 31, 1996                      665,861           666         3,290         (2,549)            --          1,407

Issuance of common stock                            40,000            40           560             --             --            600

Net income                                              --            --            --          1,154             --          1,154

Dividends paid to preferred stockholders                --            --            --            (36)            --            (36)
                                               -----------   -----------   -----------    -----------    -----------    -----------

Balances at December 31, 1997                      705,861           706         3,850         (1,431)            --          3,125

Conversion of redeemable preferred stock
    (unaudited) (note 7)                            29,643            30           563             --             --            593

Purchase of shares into treasury (unaudited)            --            --           (91)           (26)            (7)          (124)

Net income (unaudited)                                  --            --            --            122             --            122

Stock compensation (unaudited)                          --            --           102             --             --            102

Dividends paid to preferred stockholders
    (unaudited)                                         --            --            --             (9)            --             (9)
                                               -----------   -----------   -----------    -----------    -----------    -----------

Balances at November 30, 1998 (unaudited)          735,504   $       736         4,424         (1,344)            (7)         3,809
                                               ===========   ===========   ===========    ===========    ===========    ===========
</TABLE>


See accompanying notes to financial statements.


                                      F-5
<PAGE>   74
                           GATEWAY TECHNOLOGIES, INC.

                            Statements of Cash Flows

                             (amounts in thousands)


<TABLE>
<CAPTION>
                                                                                                      YEARS ENDED
                                                             ELEVEN MONTHS ENDED                      DECEMBER 31,
                                                                NOVEMBER 30,           -----------------------------------------
                                                             1998           1997           1997           1996           1995
                                                         -----------    -----------    -----------    -----------    -----------
                                                                 (UNAUDITED)
<S>                                                      <C>            <C>            <C>            <C>            <C>
Cash flows from operating activities:
    Net income (loss)                                    $       122            924          1,154           (514)           395
    Adjustments to reconcile net income (loss) to net
      cash provided by operating activities:
         Depreciation and amortization                         1,699          1,279          1,411          1,282            921
         (Gain) loss on disposition of equipment                 (83)            --              6             17             -- 
         Deferred revenue earned                                  (4)          (826)          (822)          (337)          (420)
         Deferred income taxes                                    59            253            168           (248)            51
         Noncash compensation expense                            102             --             --             --             -- 
         Write-off of investment                                 600             --             --             --             -- 
         Other                                                    70             --             --             --             -- 
         Change in operating assets and liabilities:
           Accounts receivable                                  (700)        (1,443)        (1,822)          (436)          (576)
           Other assets                                          284            379            (69)          (723)           221
           Prepaid expenses                                   (1,028)          (323)          (206)            62           (182)
           Federal income taxes                                 (319)           143            319             68            (96)
           Accounts payable                                      446           (167)           142            264            428
           Accrued expenses                                      409            314            299            508             16
                                                         -----------    -----------    -----------    -----------    -----------
             Net cash provided by (used in) operating
             activities                                        1,657            533            580            (57)           758
                                                         -----------    -----------    -----------    -----------    -----------

Cash flows from investing activities:
    Acquisitions of intangible assets and contracts           (2,210)          (175)          (175)        (1,406)            -- 
    Purchases of property and equipment                       (2,519)        (1,378)        (1,700)        (1,436)        (2,252)
    Proceeds from disposals of property and equipment            121             --             13             --             -- 
                                                         -----------    -----------    -----------    -----------    -----------
             Net cash used in investing activities            (4,608)        (1,553)        (1,862)        (2,842)        (2,252)
                                                         -----------    -----------    -----------    -----------    -----------

Cash flows from financing activities:
    Net increase on advances on direct call processing            53            560            502            249            570
    Proceeds from debt                                         3,836            797          3,220          4,569          1,750
    Payments of debt                                            (963)        (1,108)        (3,038)        (2,691)        (1,342)
    Issuance of common stock                                      --            600            600            748            111
    Issuance of preferred stock                                   --             --             --             --            600
    Treasury stock purchased                                    (124)            --             --             --             -- 
    Redemption of redeemable preferred stock                      (7)            --             --             --             -- 
    Dividends paid on preferred stock                             (9)           (36)           (36)           (36)           (27)
                                                         -----------    -----------    -----------    -----------    -----------
             Net cash provided by financing activities         2,786            813          1,248          2,839          1,662
                                                         -----------    -----------    -----------    -----------    -----------

Net increase (decrease) in cash                                 (165)          (207)           (34)           (60)           168
Cash at beginning of period                                      175            209            209            269            101
                                                         -----------    -----------    -----------    -----------    -----------
Cash at end of period                                    $        10              2            175            209            269
                                                         ===========    ===========    ===========    ===========    ===========

Supplemental schedule of noncash investing and financing
    activities - acquisition of equipment through 
    capital leases                                       $       183            131            132             62            177
                                                         ===========    ===========    ===========    ===========    ===========

Supplemental disclosure of cash flow information:
    Cash paid during period for interest expense         $       803            586            608            560            350
                                                         ===========    ===========    ===========    ===========    ===========

    Cash paid during period for income taxes             $       590             93             95             35            302
                                                         ===========    ===========    ===========    ===========    ===========
</TABLE>


See accompanying notes to financial statements.


                                      F-6
<PAGE>   75
                           GATEWAY TECHNOLOGIES, INC.

                          Notes to Financial Statements

                        December 31, 1997, 1996 and 1995



(1)    GENERAL AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

       (a)    NATURE OF BUSINESS

              Gateway Technologies, Inc. (the "Company") was incorporated in the
              State of Texas in 1988. The Company provides inmate
              telecommunication services and technology for use in correctional
              facilities throughout the United States. Through specialized
              on-site telecommunications hardware and software, the Company
              receives direct call processing revenue from billing collect calls
              made from correctional facilities. The Company also has
              contractual arrangements with long distance and local exchange
              carriers whereby it receives a fee per each billable call made
              from a phone subject to such a contract at correctional
              facilities. The Company also assembles and sells specialized
              telecommunications equipment comprised of hardware and software
              components to a local exchange carrier for use in correctional
              facilities.

       (b)    REVENUES

              Revenues from direct call processing and telecommunications
              services are recognized when the service is provided. Revenues
              from equipment sales are recognized when the equipment is shipped
              to customers.

       (c)    ALLOWANCE FOR DOUBTFUL ACCOUNTS AND CREDIT RISK

              An allowance for doubtful accounts has been established based on
              historical experience and management's evaluation of outstanding
              accounts receivable at the end of the accounting period.

       (d)    PROPERTY AND EQUIPMENT

              Property and equipment are recorded at cost, including certain
              direct and indirect costs associated with the installation of
              telecommunications systems at correctional facilities, including
              equipment awaiting installation in such facilities. Depreciation
              and amortization on installed equipment which is ready for its
              intended use is calculated using the straight-line method over the
              estimated useful lives of the assets which are as follows:

<TABLE>
<S>                                                        <C>
                Leasehold improvements                     Lesser of lease term or useful life
                Office equipment                                     5-7 years
                Telecommunications equipment                           5 years
</TABLE>

              Expenditures for major renewals and betterments are capitalized;
              expenditures for maintenance and repairs are charged to expense as
              incurred. When equipment is retired, the related cost and
              accumulated depreciation are removed from the accounts and any
              gain or loss is reflected in income.



                                      F-7
<PAGE>   76
                           GATEWAY TECHNOLOGIES, INC.

                          Notes to Financial Statements

                        December 31, 1997, 1996 and 1995



       (e)    INTANGIBLE ASSETS

              The excess of cost over the fair value of net identifiable
              tangible assets from acquisitions has been attributed to contract
              rights and is amortized using the straight-line method over an
              estimated useful life of 10 years.

              Patent acquisition costs are capitalized and amortized over the
              estimated useful life, which is principally 17 years.

              The Company continually evaluates the propriety of the carrying
              amount of intangible assets as well as the amortization period to
              determine whether current events or circumstances warrant
              adjustments to the carrying value and/or revised estimates of the
              useful life. This evaluation consists of the projection of
              undiscounted cash flows over the remaining amortization period. To
              the extent such projections indicate that the undiscounted cash
              flows are not expected to be adequate to recover the carrying
              amounts of intangible assets, such carrying amounts are written
              down by charges to expense. The amount of intangible asset
              impairment, if any, is measured based on projected discounted cash
              flows.


       (f)    INVESTMENTS

              The Company uses the cost method of accounting for its investment
              in the common stock of a third party as it does not have the
              ability to exercise significant influence over the entity. The
              Company holds 528.205 shares, which represent a 16.9% interest in
              an unrelated telecommunications company.

       (g)    INCOME TAXES

              Deferred income taxes are recognized for the tax consequences in
              future years of differences between the tax bases of assets and
              liabilities and their financial reporting amounts at each year-end
              based on enacted tax laws and statutory tax rates applicable to
              the periods in which the differences are expected to affect
              taxable earnings. Valuation allowances are established when
              necessary to reduce deferred tax assets to the amount more likely
              than not to be realized. Income tax expense is the total of tax
              payable for the period and the change during the period in
              deferred tax assets and liabilities.



                                      F-8
<PAGE>   77
                           GATEWAY TECHNOLOGIES, INC.

                          Notes to Financial Statements

                        December 31, 1997, 1996 and 1995



       (h)    EARNINGS (LOSS) PER COMMON SHARE

              Earnings (loss) per common share are presented in accordance with
              the provisions of Statement of Financial Accounting Standards No.
              128, Earnings Per Share ("SFAS 128"). Under SFAS 128, basic
              earnings (loss) per share ("EPS") excludes dilution for
              potentially dilutive securities and is computed by dividing income
              or loss available to common shareholders by the weighted average
              number of common shares outstanding during the period. Diluted EPS
              reflects the potential dilution that could occur if securities or
              other contracts to issue common stock were exercised or converted
              into common stock. Potentially dilutive securities are excluded
              from the computation of diluted earnings (loss) per share when
              their inclusion would be antidilutive. The computations of basic
              and diluted weighted average shares were as follows:


<TABLE>
<CAPTION>
                                                         YEAR ENDED DECEMBER 31,
                                              --------------------------------------------
                                                  1997            1996            1995
                                              ------------    ------------    ------------
  <S>                                         <C>             <C>             <C>    
  Numerator:
      Net income (loss) available             
        to common stockholders                $  1,118,000        (550,000)        368,000
      Preferred stock dividends                    (36,000)             --              --
                                              ------------    ------------    ------------
      Numerator for diluted earnings
        (loss) per share                      $  1,154,000        (550,000)        368,000
                                              ============    ============    ============
  Denominator:
    Denominator for dilutive
      earnings (loss) per share
      weighted average shares
      outstanding                                  703,383         665,579         609,904
    Effect of dilutive securities:
      Employee stock options                        45,446              --              --
      Redeemable preferred stock                    29,996              --              --
                                              ------------    ------------    ------------
    Denominator for dilutive
      earnings (loss) per share
      weighted average shares
      outstanding                             $    778,825         665,579         609,904
                                              ============    ============    ============
</TABLE>



                                      F-9
<PAGE>   78
                           GATEWAY TECHNOLOGIES, INC.

                          Notes to Financial Statements

                        December 31, 1997, 1996 and 1995



<TABLE>
<CAPTION>
                                                  ELEVEN MONTHS ENDED NOVEMBER 30,
                                                  --------------------------------
                                                        1998           1997
                                                    ------------   ------------
                                                            (UNAUDITED)
 <S>                                                <C>            <C>
 Numerator:                                         $
    Net income available to common
      stockholders                                       113,000        888,000
    Preferred stock dividends                                 --         36,000
                                                    ------------   ------------

    Numerator for diluted earnings per share             113,000        924,000
                                                    ============   ============

 Denominator:
    Denominator for basic earnings
      (loss) per share - weighted
      average shares outstanding                         730,114        703,158
    Effect of dilutive securities:
      Employee stock options                              44,005         45,446
      Redeemable preferred stock                              --         29,996
                                                    ------------   ------------
      Denominator for dilutive earnings
        (loss) per share - weighted average
        shares outstanding                          $    774,119        778,600
                                                    ============   ============
</TABLE>

       (i)    USE OF ESTIMATES

              Management of the Company has made a number of estimates and
              assumptions relating to the reporting of assets and liabilities
              and the disclosure of contingent assets and liabilities to prepare
              these financial statements in conformity with generally accepted
              accounting principles. Actual results could differ from those
              estimates.

       (j)    IMPAIRMENT OF LONG-LIVED ASSETS AND LONG-LIVED ASSETS TO BE 
              DISPOSED OF

              The Company adopted the provisions of SFAS No. 121, Accounting for
              the Impairment of Long-Lived Assets and for Long-Lived Assets to
              Be Disposed Of, on January 1, 1996. This Statement requires that
              long-lived assets and certain identifiable intangibles be reviewed
              for impairment whenever events or changes in circumstances
              indicate that the carrying amount of an asset may not be
              recoverable. Recoverability of assets to be held and used is
              measured by a comparison of the carrying amount of an asset to
              future net cash flows expected to be generated by the asset. If
              such assets are considered to be impaired, the impairment to be
              recognized is measured by the amount by which the carrying amount
              of the assets exceed the fair value of the assets. Assets to be
              disposed of are reported at the lower of the carrying amount or
              fair value less costs to sell. Adoption of this Statement did not
              have a material impact on the Company's financial position,
              results of operations, or liquidity.



                                      F-10
<PAGE>   79
                           GATEWAY TECHNOLOGIES, INC.

                          Notes to Financial Statements

                        December 31, 1997, 1996 and 1995



       (k)    STOCK OPTION PLAN

              Effective July 1, 1996, the Company implemented the 1996 Long-Term
              Incentive Plan which authorized the Board of Directors to grant
              options to employees. Prior to July 1, 1996, the Company had no
              outstanding options. During 1996, the Company adopted SFAS No.
              123, Accounting for Stock-Based Compensation, which permits
              entities to recognize as expense over the vesting period the fair
              value of all stock-based awards on the date of grant.
              Alternatively, SFAS No. 123 also allows entities to continue to
              apply the provisions of Accounting Principles Board ("APB")
              Opinion No. 25, Accounting for Stock Issued to Employees, and
              provide pro forma net income disclosure for employee stock option
              grants made in 1995 and future years as if the fair-value-based
              method defined in SFAS No. 123 had been applied. The Company has
              elected to continue to apply the provisions of APB Opinion No. 25
              and provide the pro forma disclosure provisions of SFAS No. 123.

       (l)    FAIR VALUE OF FINANCIAL INSTRUMENTS

              The carrying values of cash, accounts receivable, accounts payable
              and advances on direct call processing approximate fair value due
              to their short maturities. It was not practicable to estimate the
              fair value of the Company's investment representing 16.9% of the
              issued common stock of an untraded company; that investment is
              carried at its original cost of $600,000 in the accompanying
              balance sheets. As of and for the year ended December 31, 1997,
              total assets reported by the untraded company were approximately
              $2,205,000 and the common stockholders' equity was $1,592,000,
              revenues were $6,317,000 and net income was $724,000. It is not
              practical to estimate the fair value of the redeemable preferred
              stock, which was issued in a private placement, as such stock is
              not traded in the open market and a market price is not readily
              available. See note 5 for fair value of debt instruments.

       (m)    UNAUDITED INTERIM FINANCIAL INFORMATION

              In the opinion of management, the unaudited interim financial
              statements as of and for the eleven months ended November 30, 1998
              and 1997, reflect all adjustments, consisting of only normal and
              recurring items, which are necessary for a fair presentation of
              the results for the interim periods presented. The results for the
              interim periods ended November 30, 1998 and 1997 are not
              necessarily indicative of results to be expected for any other
              interim period or for the full year.


(2)    ACQUISITION

       In June 1996, the Company acquired certain contracts and assets of
       Business Telecommunications Systems, Inc. ("BTS") for cash consideration
       of approximately $1,461,000, including direct costs of the acquisition.
       This acquisition was funded with proceeds from a note payable (note 5).
       This acquisition was accounted for as a purchase, and accordingly, the
       purchase price was allocated to tangible and intangible assets based on
       fair market values at the date of acquisition. In conjunction


                                                                     (Continued)
                                      F-11
<PAGE>   80
                           GATEWAY TECHNOLOGIES, INC.

                          Notes to Financial Statements

                        December 31, 1997, 1996 and 1995



       with the acquisition, the Company issued a $100,000 note receivable to
       the sellers. The note, which bears interest at 10%, is due in monthly
       interest and quarterly principal installments, with the final payment due
       on July 1, 1999.


(3)    PROPERTY AND EQUIPMENT

       Property and equipment consist of the following at December 31, 1997 and
       1996:

<TABLE>
<CAPTION>
                                                     1997            1996
                                                 ------------    ------------
                                                    (amounts in thousands)

  <S>                                            <C>             <C>
  Equipment held awaiting installation           $      1,000             750
  Leasehold improvements                                   31              22
  Office and plant equipment                            1,208             959
  Telecommunications equipment                          6,625           5,330
                                                 ------------    ------------

                                                        8,864           7,061
  Accumulated depreciation and amortization            (3,628)         (2,392)
                                                 ------------    ------------

                                                 $      5,236           4,669
                                                 ============    ============
</TABLE>

(4)    INTANGIBLE ASSETS

       Intangible assets consist of the following at December 31, 1997 and 1996:

<TABLE>
<CAPTION>
                                                     1997            1996
                                                 ------------    ------------
                                                    (amounts in thousands)

    <S>                                          <C>             <C>
    Patent                                       $        619             619
    Acquired contract rights                            1,391           1,216
                                                 ------------    ------------

                                                        2,010           1,835
    Less accumulated amortization                        (394)           (229)
                                                 ------------    ------------

                                                 $      1,616           1,606
                                                 ============    ============
</TABLE>



                                      F-12
<PAGE>   81
                           GATEWAY TECHNOLOGIES, INC.

                          Notes to Financial Statements

                        December 31, 1997, 1996 and 1995



(5)    INDEBTEDNESS AND ADVANCES

       Debt and advances consist of the following at December 31, 1997 and 1996:

<TABLE>
<CAPTION>
                                                         1997           1996
                                                    ------------   ------------
                                                       (amounts in thousands)
  <S>                                               <C>            <C>  
  Advances:
      Advances on direct call processing (a)        $      2,212          1,710
  Debt:
      Notes payable to shareholders (b)                    2,200          2,200
      Note payable to bank (c)                               775          1,100
      Bank lines of credit (d)                             1,795            836
      Equipment notes (e)                                     50            327
      Other                                                  196            239
                                                    ------------   ------------

                    Total long-term debt            $      5,016          4,702
                                                    ============   ============
</TABLE>

       (a)    ADVANCES

              Advances on direct call processing consist of revolving advances
              with the Company's billing and collection company. The advances
              are collateralized with accounts receivable processed by the
              billing company, which are $4,195,000 and $2,435,000 as of
              December 31, 1997 and 1996, respectively. Advances are made to the
              Company when the receivable is determined and repaid when the
              receivable is collected by the Company, including interest at the
              prime rate (8.5% at December 31, 1997) plus three percentage
              points.

       (b)    NOTES PAYABLE TO STOCKHOLDERS

              At December 31, 1997 and 1996, notes payable to seven stockholders
              in the amount of $2,200,000 are outstanding. The notes bear
              interest at 10% (payable quarterly) and are uncollateralized, and
              are due on April 15, 2001. The carrying value of these notes
              approximates fair value at December 31, 1997 and 1996 as such
              notes bear interest at the Company's current incremental borrowing
              rate for uncollateralized borrowings.

       (c)    NOTE PAYABLE TO BANK

              The Company entered into a note payable with a bank for $1,500,000
              in June 1996 in conjunction with an acquisition (note 2). In 1997,
              with the purchase of additional assets related to 1996
              acquisition, an additional $175,000 was borrowed from the bank.
              The note is collateralized by the acquired equipment and contracts
              and bears interest at 10%. The note is payable in monthly
              installments of principal and interest, with the final payment due
              on December 28, 1999. The fair value of the notes payable at
              December 31, 1997 and 1996 approximates fair value as amounts
              outstanding bear interest at rates similar to the Company's
              incremental borrowing rate for similar borrowings.



                                      F-13
<PAGE>   82
                           GATEWAY TECHNOLOGIES, INC.

                          Notes to Financial Statements

                        December 31, 1997, 1996 and 1995



       (d)    BANK LINES OF CREDIT

              The Company has a line of credit with a bank providing for
              borrowings of up to $500,000. Borrowings outstanding bear interest
              at the bank's prime rate (8.5% at December 31, 1997) plus a margin
              of 1.5%. Amounts outstanding under this facility are due on May
              15, 1998. Borrowings outstanding under this credit facility, which
              are personally guaranteed by certain shareholders of the Company,
              were $123,000 and $99,000 at December 31, 1997 and 1996,
              respectively. The carrying value of borrowings outstanding under
              this line of credit at December 31, 1997 and 1996 approximate fair
              value as amounts outstanding bear interest at current market
              rates.

              The Company has a second line of credit with a lender providing
              for borrowings of up to $2,432,000. Borrowings outstanding bear
              interest at the 30-day commercial paper rate plus 2.70% (rate of
              8.33% at December 31, 1997). Availability of funds under the
              facility is reduced annually, with final payment of any borrowings
              outstanding on December 31, 2002. Borrowings outstanding under
              this agreement, which are collateralized by equipment, contracts
              and accounts receivable, were $1,672,000 and $737,000 at December
              31, 1997 and 1996, respectively. The carrying value of borrowings
              outstanding under this line of credit at December 31, 1997
              approximate fair value as amounts outstanding bear interest at
              current market rates.

       (e)    EQUIPMENT NOTES

              The Company has entered into notes payable with a financing
              company to purchase telecommunications equipment. Notes payable of
              $50,000 and $327,000, bearing interest at 12% and due in monthly
              principal and interest installments of approximately $25,000, with
              final payment due on January 15, 1998, were outstanding at
              December 31, 1997 and 1996, respectively. The notes are
              collateralized by the specific equipment that was financed. The
              fair value of the notes payable at December 31, 1997 and 1996
              approximates fair value due to the short maturity of the notes.

              As of December 31, 1997, principal payments due on indebtedness,
              in future years were as follows (amounts in thousands):

<TABLE>
              <S>                                      <C>
                     1998                              $  1,206
                     1999                                   906
                     2000                                   491
                     2001                                 2,413
</TABLE>



                                      F-14
<PAGE>   83
                           GATEWAY TECHNOLOGIES, INC.

                          Notes to Financial Statements

                        December 31, 1997, 1996 and 1995



(6)    INCOME TAXES

       Income tax expense (benefit) attributed to income (loss) before income
       taxes consists of the following:

<TABLE>
<CAPTION>
                                   1997          1996           1995
                                ----------    ----------    ----------
                                         (amounts in thousands)

<S>                             <C>           <C>           <C>
       Current                  $      439            --           178
       Deferred                        168          (248)           51
                                ----------    ----------    ----------

                                $      607          (248)          229
                                ==========    ==========    ==========
</TABLE>

       Total income tax expense (benefit) differed from the amount computed by
       applying the U.S. federal statutory income tax rate of 34% to income
       (loss) before income taxes for the years ended December 31, 1997, 1996
       and 1995 as a result of the following:

<TABLE>
<CAPTION>
                                                  1997          1996          1995
                                               ----------    ----------    ----------
                                                       (amounts in thousands)

<S>                                            <C>           <C>           <C>
Computed "expected" tax expense (benefit)      $      599          (259)          212
Nondeductible expenses                                 11            11             8
Other, net                                             (3)           --             9
                                               ----------    ----------    ----------

                                               $      607          (248)          229
                                               ==========    ==========    ==========
</TABLE>

       The tax effects of temporary differences that give rise to significant
       portions of the deferred tax assets and liabilities at December 31, 1997
       and 1996 are presented below:

<TABLE>
<CAPTION>
                                                         1997          1996
                                                      ----------    ----------
<S>                                                   <C>           <C>
      Deferred tax assets:
          Net operating loss carryforwards            $       --            20
          Allowance for doubtful accounts                    279           339
          Goodwill - difference in amortization               17             5
          Accrued compensation                                13            13
          Other                                              106           149
                                                      ----------    ----------

                      Total deferred tax assets              415           526
                                                      ----------    ----------

      Deferred tax liability -
          Property and equipment, primarily
            resulting from difference in
            depreciation                                    (386)         (329)
                                                      ----------    ----------

                      Net deferred tax asset          $       29           197
                                                      ==========    ==========
</TABLE>



                                      F-15
<PAGE>   84
                           GATEWAY TECHNOLOGIES, INC.

                          Notes to Financial Statements

                        December 31, 1997, 1996 and 1995



       Deferred tax assets and liabilities are computed by applying the U.S.
       federal income tax rate in effect to the gross amounts of temporary
       differences and other tax attributes, such as net operating loss
       carryforwards.

       In assessing the realizability of deferred tax assets, management
       considers whether it is more likely than not that some portion or all of
       the deferred tax assets will not be realized. The ultimate realization of
       deferred tax assets is dependent upon the generation of future taxable
       income during the periods in which those temporary differences become
       deductible. Management considers the scheduled reversal of deferred tax
       liabilities, projected future taxable income, and tax planning strategies
       in making this assessment. The Company expects the deferred tax assets at
       December 31, 1997 to be realized as a result of the reversal during the
       carryforward period of existing taxable temporary differences giving rise
       to deferred tax liabilities and the generation of taxable income in the
       carryforward period.


(7)    REDEEMABLE PREFERRED STOCK

       During 1995, the Company issued 29,996 shares of Series A Convertible
       Preferred Stock, par value $1, to existing common stockholders of record
       as of January 15, 1995. The preferred stock is nonvoting with dividend
       and liquidation preference over common stock. Cumulative dividends of 6%
       on the $20 purchase price of the preferred stock are paid quarterly
       beginning May 31, 1995.

       On March 1, 1998, the preferred stockholders could elect to require the
       Company to redeem the preferred stock at the stated value of $20 plus
       unpaid dividends. Any preferred stock not redeemed at March 1, 1998 was
       to be automatically converted into shares of the Company's common stock
       on a one share for one share basis. On March 1, 1998, 353 shares of
       Series A Preferred were redeemed at their purchase price of $20 per share
       and 29,643 shares were converted to common stock on a one share for one
       share basis, at the election of the Series A Preferred stockholders.


(8)    RELATED PARTY TRANSACTIONS

       (a)    NOTES PAYABLE TO STOCKHOLDERS

              Various stockholders or their companies made loans to the Company
              during the year for operations. Below is a summarization of these
              transactions (See note 5).

<TABLE>
<CAPTION>
                                                   1997           1996
                                               ------------   ------------
                                                  (amounts in thousands)

           <S>                                 <C>            <C>  
           Beginning balance                   $      2,200          1,600
           Payments                                      --           (300)
           Advances                                      --            900
                                               ------------   ------------

           Ending balance                      $      2,200          2,200
                                               ============   ============
</TABLE>

              Interest paid to shareholders or their companies during the years
              ended December 31, 1997, 1996 and 1995 was $220,000, $129,000 and
              $160,000, respectively.



                                      F-16
<PAGE>   85
                           GATEWAY TECHNOLOGIES, INC.

                          Notes to Financial Statements

                        December 31, 1997, 1996 and 1995



       (b)    ASSIGNMENT AND ROYALTY AGREEMENT

              Telequip Technology Development Partners ("TTDP"), a partnership
              in which the Company, through its stockholders, had a related
              interest, had assigned to the Company its rights and interests in
              all agreements with Telequip Labs, Inc. In exchange for this
              assignment, the Company pays a one and one half percent royalty on
              all revenues generated from operations of the Company excluding
              interest, dividends and capital gains. Effective January 1, 1995,
              TTDP had dissolved and the royalty was paid to the former partners
              on an individual basis. The Company paid the former TTDP partners
              $385,000, $315,000, $240,000 for the years ended December 31,
              1997, 1996 and 1995, respectively.


(9)    STOCK OPTIONS

       The Company has established the 1996 Long-Term Incentive Plan (the
       "Plan") which provides for the issuance of stock options to officers and
       other key employees of the Company. The Plan makes available 86,000
       shares of common stock for issuance. Options issued under the Plan have
       varying vesting periods as provided in separate stock option agreements
       and carry an expiration date of ten years subsequent to the date of
       issuance. In July 1996, 59,130 options were issued with an exercise price
       of $8.10, which approximates the market price at date of grant. No
       options were granted in 1997. Additionally, no options were exercised as
       of December 31, 1997. The weighted average fair value of options granted
       during 1996 was $2.10.

       The Company applies APB Opinion No. 25 in accounting for its Plan and,
       accordingly, no compensation cost has been recognized for its stock
       options in the financial statements. If the Company had determined
       compensation cost based on the fair value at the grant date for its stock
       options under SFAS No. 123, the Company's net income (loss) would have
       been changed to the pro forma amounts indicated below:

<TABLE>
<CAPTION>
                                                        1997           1996
                                                   ------------   ------------

<S>                                                <C>            <C>  
Net income (loss) (in thousands):
     As reported                                   $      1,154           (514)
     Pro forma                                     $      1,123           (545)
Basic earnings (loss) per common share:
     As reported                                   $       1.59          (0.83)
     Pro forma                                     $       1.55          (0.87)
Diluted earnings (loss) per common share:
     As reported                                   $       1.48          (0.83)
     Pro forma                                     $       1.44          (0.87)
</TABLE>



                                      F-17
<PAGE>   86
                           GATEWAY TECHNOLOGIES, INC.

                          Notes to Financial Statements

                        December 31, 1997, 1996 and 1995

       The fair value of the option grant is estimated on the date of grant
       using the Black-Sholes option pricing model with the following weighted
       average assumptions used for grants: dividend yield of 0% for all years;
       expected volatility of 0%; risk-free interest rate of 6.0% and expected
       life of five years.


(10)   COMMITMENTS

       The Company leases certain office equipment under noncancellable capital
       leases expiring in 1998 through 2000. Capitalized costs of the equipment
       under capital leases was not significant at December 31, 1997 and 1996
       and the related indebtedness is included in indebtedness in the
       accompanying balance sheet (see note 5).

       The Company has entered into an operating lease which expires September
       30, 2002 for office space at $19,000 a month. The rent expense was
       $162,000, $160,000, $185,000 for the years ended December 31, 1997, 1996
       and 1995, respectively. At December 31, 1997, future minimum lease
       payments were as follows (amounts in thousands):

<TABLE>
<CAPTION>
              Year ended December 31:
              <S>                                       <C>    
                      1998                              $    222
                      1999                                   226
                      2000                                   235
                      2001                                   235
                      2002                                   176
</TABLE>

       The Company has entered into certain binding agreements with two vendors
       to purchase additional inventory items at a fixed price in the aggregate
       amount of $345,000. All current inventory purchase commitments are
       expected to be fulfilled by December 31, 1998.


(11)   SUBSEQUENT EVENTS (UNAUDITED)

       On February 10, 1999, the Company entered into a definitive agreement to
       merge with T-Netix, Inc., a public company listed on NASDAQ.



                                      F-18


<PAGE>   87
                                   APPENDIX A




                          AGREEMENT AND PLAN OF MERGER

                                  by and among

                                 T-NETIX, INC.,
                             A COLORADO CORPORATION,

                                       and

                           T-NETIX ACQUISITION CORP.,
                             A COLORADO CORPORATION

                           GATEWAY TECHNOLOGIES, INC.,
                              A TEXAS CORPORATION,

                              CERTAIN SHAREHOLDERS
                                OF T-NETIX, INC.

                                       and

                              CERTAIN SHAREHOLDERS
                          OF GATEWAY TECHNOLOGIES, INC.



February 10, 1999



<PAGE>   88



                                TABLE OF CONTENTS
<TABLE>
<CAPTION>

                                                                                                               Page
                                                                                                               ----
<S>                                                                                                            <C>
ARTICLE 1
MERGER............................................................................................................1
         1.1      PLAN OF MERGER..................................................................................1
         1.2      MERGER CONSIDERATION............................................................................2
         1.3      NO FURTHER RIGHTS OF TRANSFER...................................................................3
         1.4      SURVIVING CORPORATION...........................................................................4
         1.5      THE CLOSING.....................................................................................4
         1.6      T-NETIX STOCK...................................................................................5
         1.7      DISSENTING GATEWAY SHAREHOLDERS.................................................................6

ARTICLE 2
REPRESENTATIONS AND WARRANTIES OF T-NETIX.........................................................................6
         2.1      ORGANIZATION, STANDING, CORPORATE AUTHORIZATION, AND ENFORCEABILITY.............................6
         2.2      CAPITALIZATION..................................................................................7
         2.3      ARTICLES OF INCORPORATION AND BYLAWS; CERTAIN RECORDS...........................................8
         2.4      COMPLIANCE WITH OTHER INSTRUMENTS AND LAWS......................................................8
         2.5      GOVERNMENTAL AUTHORIZATIONS; CONSENTS...........................................................8
         2.6      LITIGATION......................................................................................9
         2.7      FINANCIAL STATEMENTS; CONDUCT OF T-NETIX BUSINESS;
                  NO UNDISCLOSED LIABILITIES......................................................................9
         2.8      ABSENCE OF CERTAIN CHANGES OR EVENTS............................................................9
         2.9      TITLE TO PROPERTY, ABSENCE OF LIENS AND ENCUMBRANCES...........................................11
         2.10     FULL AUTHORITY; COMPLIANCE WITH LAWS...........................................................12
         2.11     T-NETIX BENEFIT PLANS..........................................................................12
         2.12     CLAIMS.........................................................................................14
         2.13     TAXES..........................................................................................15
         2.14     ENVIRONMENTAL QUALITY..........................................................................16
         2.15     INTELLECTUAL PROPERTY..........................................................................18
         2.16     LABOR MATTERS..................................................................................18
         2.17     BROKERS AND FINDERS............................................................................19
         2.18     T-NETIX'S KNOWLEDGE............................................................................19
         2.19     YEAR 2000 COMPLIANCE...........................................................................19
         2.20     CUSTOMERS AND VENDORS..........................................................................19
         2.21     ACCURACY.......................................................................................20

ARTICLE 3
REPRESENTATIONS AND WARRANTIES OF GATEWAY........................................................................20
         3.1      ORGANIZATION, STANDING, CORPORATE AUTHORIZATION, AND ENFORCEABILITY............................20
         3.2      CAPITALIZATION.................................................................................21
         3.3      ARTICLES OF INCORPORATION AND BYLAWS; CERTAIN RECORDS..........................................21
</TABLE>



                                      - i -

<PAGE>   89

<TABLE>
<CAPTION>

<S>                                                                                                            <C>
         3.4      COMPLIANCE WITH OTHER INSTRUMENTS AND LAWS.....................................................22
         3.5      GOVERNMENTAL AUTHORIZATIONS; CONSENTS..........................................................22
         3.6      LITIGATION.....................................................................................22
         3.7      FINANCIAL STATEMENTS; CONDUCT OF GATEWAY BUSINESS;
                  NO UNDISCLOSED LIABILITIES.....................................................................22
         3.8      ABSENCE OF CERTAIN CHANGES OR EVENTS...........................................................23
         3.9      TITLE TO PROPERTY, ABSENCE OF LIENS AND ENCUMBRANCES...........................................24
         3.10     FULL AUTHORITY; COMPLIANCE WITH LAWS...........................................................25
         3.11     BENEFIT PLANS..................................................................................25
         3.12     CLAIMS.........................................................................................27
         3.13     TAXES..........................................................................................27
         3.14     CONTRACTS......................................................................................29
         3.15     ENVIRONMENTAL QUALITY..........................................................................31
         3.16     INTELLECTUAL PROPERTY..........................................................................32
         3.17     RELATED PARTY TRANSACTIONS.....................................................................32
         3.18     LABOR MATTERS..................................................................................32
         3.19     CUSTOMERS AND VENDORS..........................................................................33
         3.20     OTHER DISCLOSURES..............................................................................33
         3.21     PARACHUTE PAYMENTS.............................................................................34
         3.22     BROKERS AND FINDERS............................................................................34
         3.23     GATEWAY'S KNOWLEDGE............................................................................34
         3.24     YEAR 2000 COMPLIANCE...........................................................................34
         3.25     RIGHT OF FIRST REFUSAL.........................................................................34
         3.26     TERMINATION OF EXISTING AGREEMENT..............................................................34
         3.27     ACCURACY.......................................................................................34

ARTICLE 4
ADDITIONAL REPRESENTATIONS AND WARRANTIES OF GATEWAY,
GATEWAY SHAREHOLDER SIGNATORIES AND GATEWAY SHAREHOLDERS.........................................................35
         4.1      OWNERSHIP OF SHARES............................................................................35
         4.2      INVESTMENT REPRESENTATIONS.....................................................................35

ARTICLE 5
COVENANTS OF GATEWAY.............................................................................................35
         5.1      CONDUCT OF BUSINESS............................................................................35
         5.2      CONFIDENTIALITY................................................................................37
         5.3      ACCESS.........................................................................................37
         5.4      NO SALE OR TRANSFER OF SHARES..................................................................38
         5.5      NO SHOPPING....................................................................................38
         5.6      FILINGS AND CONSENTS...........................................................................38
         5.7      UPDATED GATEWAY DISCLOSURE LETTER..............................................................38
         5.8      MAXIMUM INDEBTEDNESS...........................................................................39
         5.9      POOLING AND TAX-FREE REORGANIZATION TREATMENT..................................................39
</TABLE>


                                     - ii -

<PAGE>   90


<TABLE>
<CAPTION>
<S>                                                                                                            <C>
         5.10     PROXY MATERIALS................................................................................39

ARTICLE 6
COVENANTS OF T-NETIX.............................................................................................39
         6.1      CONDUCT OF BUSINESS............................................................................39
         6.2      CONFIDENTIALITY................................................................................41
         6.3      ACCESS.........................................................................................41
         6.4      NO SHOPPING....................................................................................41
         6.5      FILINGS AND CONSENTS...........................................................................42
         6.6      UPDATED T-NETIX DISCLOSURE LETTER..............................................................42
         6.7      POOLING AND TAX-FREE REORGANIZATION TREATMENT..................................................42
         6.8      PROXY MATERIALS................................................................................42

ARTICLE 7
COVENANTS OF ALL PARTIES.........................................................................................43
         7.1      COMMERCIALLY REASONABLE EFFORTS; FURTHER ASSURANCES............................................43
         7.2      CERTAIN FILINGS, ETC...........................................................................43
         7.3      PUBLIC ANNOUNCEMENTS...........................................................................43
         7.4      HART-SCOTT-RODINO FILING.......................................................................43
         7.5      AFFILIATES.....................................................................................43

ARTICLE 8
CONDITIONS TO CLOSING............................................................................................44
         8.1      CONDITIONS FOR THE BENEFIT OF T-NETIX..........................................................44
         8.2      CONDITIONS FOR THE BENEFIT OF GATEWAY..........................................................46

ARTICLE 9
POST-CLOSING COVENANTS...........................................................................................48
         9.1      ADDITIONAL FUNDING.............................................................................48
         9.2      SERVICE CREDIT.................................................................................48
         9.3      BOARD OF DIRECTORS.............................................................................48

ARTICLE 10
TERMINATION OF AGREEMENT.........................................................................................48
         10.1     RIGHT TO TERMINATE AGREEMENT...................................................................48
         10.2     EFFECT OF TERMINATION..........................................................................49
         10.3     DAMAGES........................................................................................49

ARTICLE 11
CERTAIN REMEDIES AND LIMITATIONS.................................................................................50
         11.1     SURVIVAL OF REPRESENTATIONS, WARRANTIES AND COVENANTS..........................................50
         11.2     INDEMNIFICATION BY T-NETIX.....................................................................50
         11.3     LIMITATIONS ON LIABILITY OF T-NETIX............................................................51
</TABLE>


                                     - iii -

<PAGE>   91


<TABLE>
<CAPTION>
<S>                                                                                                            <C>
         11.4     INDEMNIFICATION BY GATEWAY SHAREHOLDERS........................................................51
         11.5     LIMITATIONS ON LIABILITIES OF GATEWAY SHAREHOLDERS.............................................52
         11.6     INDEMNIFICATION CLAIMS.........................................................................52
         11.7     DEFENSE OF THIRD-PARTY ACTIONS.................................................................53
         11.8     SUBROGATION....................................................................................55
         11.9     EXCLUSIVITY....................................................................................55
         11.10    RETENTION OF RECORDS...........................................................................55

ARTICLE 12
MISCELLANEOUS....................................................................................................55
         12.1     MATERIALITY....................................................................................55
         12.2     NOTICES; ETC...................................................................................56
         12.3     ASSIGNMENT.....................................................................................57
         12.4     ENTIRE AGREEMENT; AMENDMENT; GOVERNING LAW; ETC................................................57
         12.5     COUNTERPARTS...................................................................................57
         12.6     THIRD-PARTY RIGHTS.............................................................................57
         12.7     RECITALS AND EXHIBITS..........................................................................57
         12.8     PRONOUNS.......................................................................................57
         12.9     AUTHORITY AND EXECUTION........................................................................58
         12.10    SEVERABILITY...................................................................................58
         12.11    TIME OF ESSENCE................................................................................58
         12.12    INTERPRETATION.................................................................................58
</TABLE>

EXHIBITS
<TABLE>
<CAPTION>

<S>      <C>
A-1      Articles of Merger (Colorado)
A-2      Articles of Merger (Texas)
B        Rule 145 Letter
D-1      Employment Agreement of Richard E. Cree
E        Non-competition Agreements of G. B. Cree Jr., W. P. Buckthal, Irvin Wall and
                  James B. Franklin
F        Investor Representation Letter
G        Opinion of Rothgerber Johnson & Lyons LLP
</TABLE>



                                     - iv -

<PAGE>   92



                             INDEX OF DEFINED TERMS

<TABLE>
<CAPTION>

Terms                                                                                                          Page
- - -----                                                                                                          ----
<S>                                                                                                             <C>
Affiliate .......................................................................................................13
Agreement ........................................................................................................1
Annual Financial Statements......................................................................................22
Benefit Plan ....................................................................................................26
Business .........................................................................................................1
CERCLA ..........................................................................................................16
Certificate ......................................................................................................3
Claim Notice ....................................................................................................53
Claimants .......................................................................................................53
Claims ...........................................................................................................9
Closing ..........................................................................................................4
Closing Date .....................................................................................................4
COBRA ...........................................................................................................14
Code .............................................................................................................1
Colorado Corporation Act..........................................................................................2
Confidential Information.........................................................................................41
Disqualified Individuals.........................................................................................34
Dissenters' Rights................................................................................................6
Dissenting Shareholders...........................................................................................6
Effective Time ...................................................................................................2
Employment Agreements............................................................................................45
Environmental Laws...............................................................................................16
ERISA ...........................................................................................................12
Financial Statements.............................................................................................22
Gateway ..........................................................................................................1
Gateway Associates...............................................................................................37
Gateway Change of Control........................................................................................38
Gateway Confidential Information.................................................................................41
Gateway Disclosure Letter........................................................................................20
Gateway Equity Rights............................................................................................21
Gateway Holdback Shares...........................................................................................4
Gateway Intellectual Property....................................................................................32
Gateway Options ..................................................................................................3
Gateway Related Agreements.......................................................................................20
Gateway Shareholder Indemnified Obligation.......................................................................51
Gateway Shareholder Signatories...................................................................................1
Gateway Shareholders..............................................................................................1
Gateway Shareholders' Representative..............................................................................5
Gateway Stock ....................................................................................................2
Gateway Title Notice.............................................................................................25
</TABLE>


                                      - v -

<PAGE>   93

<TABLE>
<CAPTION>
<S>                                                                                                             <C>
Hazardous Materials..............................................................................................16
HSR Act .........................................................................................................43
Indebtedness ....................................................................................................39
Indemnification Claim............................................................................................53
Indemnified Parties..............................................................................................53
Indemnifying Parties.............................................................................................53
Initial Consideration.............................................................................................4
Interim Financial Statements.....................................................................................22
Leased Property .................................................................................................25
Legal Requirement ................................................................................................8
Losses ..........................................................................................................50
Material Adverse Effect..........................................................................................55
Material Contracts...............................................................................................29
Merger ...........................................................................................................1
Merger Consideration..............................................................................................2
Multiemployer Plan...............................................................................................13
Non-Competition Agreements.......................................................................................45
PBGC ............................................................................................................13
Pension Plan ....................................................................................................13
Permits .........................................................................................................12
Permitted Liens .................................................................................................11
Person ...........................................................................................................5
Pro Rata Share ...................................................................................................2
Property ........................................................................................................31
RCRA ............................................................................................................16
Real Property ...................................................................................................24
Related Parties .................................................................................................32
SEC ..............................................................................................................1
SEC Filings ......................................................................................................9
Securities Act ..................................................................................................35
Shareholder Indemnified Obligation...............................................................................52
Shareholder Indemnified Parties..................................................................................50
Surviving Corporation.............................................................................................2
T-NETIX ..........................................................................................................1
T-NETIX Associates...............................................................................................41
T-NETIX Benefit Plan.............................................................................................12
T-NETIX Change of Control........................................................................................42
T-NETIX Confidential Information.................................................................................37
T-NETIX Disclosure Letter.........................................................................................6
T-NETIX Equity Rights.............................................................................................8
T-NETIX Indemnified Parties......................................................................................51
T-NETIX Intellectual Property....................................................................................18
T-NETIX Leased Property..........................................................................................11
T-NETIX Options ..................................................................................................3
</TABLE>


                                     - vi -

<PAGE>   94


<TABLE>
<CAPTION>
<S>                                                                                                             <C>
T-NETIX Real Property............................................................................................11
T-NETIX Related Agreements........................................................................................7
T-NETIX Reserve Shares............................................................................................4
T-NETIX Shareholder Signatories...................................................................................1
T-NETIX Shareholders..............................................................................................2
T-NETIX Stock ....................................................................................................2
T-NETIX Title Notice.............................................................................................11
TAC ..............................................................................................................1
TAC Stock ........................................................................................................2
Tax .............................................................................................................15
Tax Opinion .....................................................................................................45
Tax Returns .....................................................................................................15
Taxes ...........................................................................................................15
Texas Corporation Act.............................................................................................1
TTDP Royalty Agreement............................................................................................3
TTDP Royalty Owners...............................................................................................3
Updated Gateway Disclosure Letter................................................................................39
Updated T-NETIX Disclosure Letter................................................................................42
Year 2000 Compliant..............................................................................................19
</TABLE>

<TABLE>
<CAPTION>
Index of Defined Terms in Exhibits
- - ----------------------------------
<S>                                                    <C>
Acquisition                                            Exhibit B
Accredited Investor                                    Exhibit F
Acquisition Documents                                  Exhibit C
Competition                                            Exhibit E
Competitive Operation                                  Exhibit E
Customer                                               Exhibit E
Non-Competition Period                                 Exhibit E
Restricted Area                                        Exhibit E
Sophisticated Investor                                 Exhibit F
T-NETIX Entities                                       Exhibit E
</TABLE>



                                     - vii -

<PAGE>   95



               AGREEMENT AND PLAN OF MERGER OF T-NETIX AND GATEWAY


         THIS AGREEMENT AND PLAN OF MERGER (this "Agreement") is made and
entered into as of February 10, 1999, by and among T-NETIX, INC., a Colorado
corporation ("T-NETIX"), T-NETIX ACQUISITION CORP. ("TAC"), a Colorado
corporation and a wholly owned subsidiary of T-NETIX, and GATEWAY TECHNOLOGIES,
INC., a Texas corporation ("Gateway"), and those shareholders of T-NETIX (the
"T-NETIX Shareholder Signatories") and Gateway (the "Gateway Shareholder
Signatories") who have executed this Agreement for the purpose of those
agreements contained in Section 1.1(a) or (b) as applicable.


                                   WITNESSETH:

         WHEREAS, the Boards of Directors of Gateway, T-NETIX and TAC have
determined that it is in the best interests of Gateway, T-NETIX and their
respective shareholders for TAC to be merged with and into Gateway (the
"Merger") upon and subject to the terms, conditions, representations and
warranties set forth herein.

         WHEREAS, Gateway is in the business of providing inmate calling
equipment and services (the "Business").

         WHEREAS, the Parties intend the Merger to be a "pooling of interests"
for accounting purposes and a "reorganization" within the meaning of Section
368(a) of the Internal Revenue Code of 1986, as amended (the "Code").

         NOW, THEREFORE, in consideration of the mutual covenants,
representations and warranties made herein and of the mutual benefits to be
derived herefrom, Gateway and T-NETIX agree as follows:


                                    ARTICLE 1
                                     MERGER

         1.1 PLAN OF MERGER. Subject to the terms and conditions of this
Agreement, including the receipt of all requisite shareholder approvals, the
Merger will be carried out in the following manner:

                  (a) As soon as practicable after the joint proxy
statement/offering memorandum referred to in Section 6.8 hereof has been
completed and filed with the Securities and Exchange Commission (the "SEC"), and
all applicable waiting periods have expired, Gateway shall duly call, notice and
hold a meeting of its shareholders (the "Gateway Shareholders") to approve the
Merger under the Texas Business Corporation Act, as amended (the "Texas
Corporation Act"). The Gateway Shareholder Signatories agree to vote for
approval of the Merger at such meeting.



<PAGE>   96



                  (b) As soon as practicable after the T-NETIX joint proxy
statement/offering memorandum referred to in Section 6.8 hereof has been
completed and filed with the SEC and all applicable waiting periods have
expired, T-NETIX shall duly call, notice and hold a meeting of its shareholders
(the "T-NETIX Shareholders") to approve the Merger under the Colorado Business
Corporation Act, as amended (the "Colorado Corporation Act"). The T-NETIX
Shareholder Signatories agree to vote for approval of the Merger at such
meeting.

                  (c) At the Effective Time (as defined in Section 1.1(d)), TAC
shall merge with and into Gateway, the separate existence of TAC shall cease and
Gateway shall continue as the surviving corporation (Gateway, in its capacity as
the corporation surviving the Merger, is hereinafter sometimes referred to as
the "Surviving Corporation").

                  (d) Subject to the provisions of this Agreement, Articles of
Merger substantially in the forms of Exhibits A-1 and A-2 shall be duly executed
and, on the Closing Date (as defined in Section 1.5 hereof) filed, respectively,
with the Texas Secretary of State in accordance with the Texas Corporation Act
and the Colorado Secretary of State in accordance with the Colorado Corporation
Act. The Merger shall become effective upon the filing of the Articles of Merger
(the "Effective Time").

                  (e) At the Effective Time, each share of common stock of
Gateway, par value $1.00 per share (the "Gateway Stock") shall be converted into
the right to receive the Merger Consideration (as defined in Section 1.2). In
addition, each Certificate (as defined in Section 1.3 below) shall represent the
right to receive the Merger Consideration multiplied by the number of shares of
Gateway Stock formerly represented by such Certificate.

                  (f) At the Effective Time, each share of common stock of TAC,
no par value (the "TAC Stock"), shall be converted into the right to receive one
(1) share of Gateway Stock.

         1.2      MERGER CONSIDERATION.

                  (a) The "Merger Consideration" shall consist of 5.0375 shares
of the common stock of T-NETIX, $0.01 stated value per share (the "T-NETIX
Stock") for each one (1) share of Gateway Stock outstanding at the Effective
Time (other than shares held by Dissenting Gateway Shareholders, as defined in
Section 1.7 hereof). Fractional shares shall not be issued, and in lieu thereof
T-NETIX shall pay cash in an amount equal to the average closing price of
T-NETIX Stock for the five trading days immediately prior to the Closing Date,
times the applicable fraction of a share. The number of shares of Gateway Stock
that will be owned by each Gateway Shareholder immediately before the Effective
Time is set forth in the Gateway Disclosure Letter (as defined in Article 3
hereof), and each Gateway Shareholder's proportion of ownership of the total
number of shares of Gateway Stock outstanding immediately before the Effective
Time (and not held by Dissenting Gateway Shareholders) shall be referred to
herein as such Gateway Shareholder's "Pro Rata Share."



                                      - 2 -

<PAGE>   97



                  (b) All outstanding options to purchase Gateway Stock (the
"Gateway Options") shall be exchanged for options to purchase T-NETIX Stock (the
"T-NETIX Options") to be issued pursuant to T-NETIX's Non-Qualified Stock Option
Plan. For each one (1) share of Gateway Stock underlying a Gateway Option, there
shall be 5.0375 shares of T-NETIX Stock underlying the T-NETIX Option exchanged
therefor. In addition, the exercise price for each T-NETIX Option shall be equal
to the exercise price for the Gateway Option exchanged therefor divided by
5.0375. Each T-NETIX Option shall have the same vesting schedule as the Gateway
Option exchanged therefor and shall in all other material respects have the same
terms as the Gateway option exchanged therefor. Any T-NETIX Option that is
exchanged for a Gateway Option that is fully vested immediately prior to the
Effective Time, whether or not due to acceleration of such vesting, shall be
fully vested from and after the Effective Time. T-NETIX shall register the
T-NETIX Options on Form S-8 no later than six months after the Effective Time.

                  (c) In exchange for termination of that certain dated royalty
agreement dated October 5, 1989 (the "TTDP Royalty Agreement") between Gateway
and certain other parties thereto (the "TTDP Royalty Owners"), and in addition
to the consideration stated in paragraphs (a) and (b) of this Section 1.2,
T-NETIX shall issue to the TTDP Royalty Owners (pro rata in accordance with
their respective royalty interests) a total of 375,339 shares of T-NETIX Stock.
The Gateway Disclosure Letter shall reflect the shares of T-NETIX Stock to be
issued under this paragraph (c) of Section 1.2, and the recipients thereof.

                  (d) In the event that Gateway's Indebtedness (as defined in
Section 5.8 hereof) exceeds the maximum amount permitted by that section, the
Merger Consideration shall be reduced by that number of shares of T-NETIX Stock
equal to the excess of Gateway's Indebtedness over the maximum Indebtedness
allowed pursuant to Section 5.8 hereof, divided by the average closing price of
T-NETIX Stock for the five trading days immediately prior to the date hereof,
divided by the number of shares of Gateway Stock outstanding immediately before
the Effective Time (other than shares held by Dissenting Gateway Shareholders).
The number of shares of T-NETIX Stock underlying T-NETIX Options exchanged for
Gateway Options pursuant to Section 1.2(b) hereof shall be equally reduced, and
the exercise price of such T-NETIX Options shall be equally increased.

         1.3 NO FURTHER RIGHTS OF TRANSFER. At and after the Effective Time,
each holder of a certificate formerly representing one or more shares of Gateway
Stock (a "Certificate") shall cease to have any rights as a shareholder of
Gateway, except for the right to surrender such Certificate in exchange for the
Merger Consideration deliverable in respect thereof, and no transfer of shares
of Gateway Stock shall be made on the stock transfer books of Gateway.
Certificates presented to the Surviving Corporation after the Effective Time
shall be canceled and exchanged for the Merger Consideration as provided in this
Article 1. At the close of business on the day of the Effective Time, the stock
ledger of Gateway with respect to the shares of Gateway Stock shall be closed.



                                      - 3 -

<PAGE>   98



         1.4 SURVIVING CORPORATION. The Articles of Incorporation and Bylaws of
Gateway, as in effect immediately prior to the Effective Time, shall be the
Articles of Incorporation and Bylaws of the Surviving Corporation. At the
Effective Time, the directors of TAC immediately prior to the Effective Time
shall be the directors of the Surviving Corporation, each to hold office,
subject to the applicable provisions of the Articles of Incorporation and Bylaws
of the Surviving Corporation, until the next annual shareholders' meeting of the
Surviving Corporation and until their respective successors shall be duly
elected or appointed and qualified. At the Effective Time, the officers of
Gateway immediately prior to the Effective Time shall be the officers of the
Surviving Corporation, each to hold office in accordance with the terms of his
or her employment (which, unless otherwise stated in writing, shall be
employment-at-will).

         1.5 THE CLOSING. The closing of the transactions contemplated by this
Article 1 (the "Closing") shall be held at the offices of Rothgerber Johnson &
Lyons LLP in Denver, Colorado, at 9:00 a.m. (local time) on March 31, 1999, or
at such other place, time and date as may be jointly designated by T-NETIX and
Gateway (the date on which the Closing takes place, the "Closing Date"). At or
before the Closing, each of the following shall occur:

                  (a) At the Closing, from each Gateway Shareholder's Merger
Consideration according to such Gateway Shareholder's Pro Rata Share, T-NETIX
shall deduct and hold back shares of T-NETIX Stock which represent five percent
(5%) of the aggregate Merger Consideration (such shares being referred to herein
as the "Gateway Holdback Shares"). T-NETIX shall also reserve and set aside
additional shares of T-NETIX Stock equal in number to the Gateway Holdback
Shares (such shares being referred to herein as the "T-NETIX Reserve Shares").
T-NETIX shall reserve and set aside the Gateway Holdback Shares and the T-NETIX
Reserve Shares exclusively for issuance pursuant to this Section 1.5 and to
Article 11 hereof.

                  (b) The shares of T-NETIX Stock comprising the Merger
Consideration remaining after the holdback provided for in Section 1.5(a) shall
be the "Initial Consideration." At the Closing, each Gateway Shareholder shall
surrender for cancellation all Certificates held by such Gateway Shareholder,
duly endorsed in blank or accompanied by such transmittal letters as T-NETIX may
reasonably require. As soon as reasonably practicable but in no event later than
ten (10) days following the date upon which the materials described in the
preceding sentence have been deliver to T-NETIX, T-NETIX shall issue and deliver
to each Gateway Shareholder such Gateway Shareholder's Pro Rata Share of the
shares of the T-NETIX Stock comprising the Initial Consideration.

                  (c) If the Merger Consideration (or any portion thereof) is to
be delivered to a Person other than the Gateway Shareholder in whose name the
Certificates surrendered in exchange therefor are registered, it shall be a
condition to the issuance and delivery of the shares of T-NETIX Stock comprising
the Merger Consideration that the Certificates so surrendered shall be properly
endorsed or accompanied by appropriate stock powers and otherwise in proper form
for transfer, that such transfer otherwise be proper and that the Gateway
Shareholder requesting such transfer pay to T-NETIX any transfer or other taxes
payable by reason of the foregoing or


                                      - 4 -

<PAGE>   99



establish to the satisfaction of T-NETIX that such taxes have been paid or are
not required to be paid.

                  For purposes of this Agreement, "Person" shall mean and
include an individual, a partnership, a joint venture, a corporation, a trust,
an unincorporated organization, a group and a government or other department or
agency thereof.

                  (d) In the event any Certificate shall have been lost, stolen
or destroyed, upon the making of an affidavit of that fact by the Gateway
Shareholder claiming such Certificate to be lost, stolen or destroyed, and upon
such Gateway Shareholder's agreement to indemnify the Surviving Corporation
against any claim that may be made against the Surviving Corporation with
respect to the Certificate claimed to have been lost, stolen or destroyed, or,
if reasonably required by T-NETIX, upon such Gateway Shareholder's obtaining a
lost instrument bond in form and amount satisfactory to T-NETIX, T-NETIX will
issue in exchange for such lost, stolen or destroyed Certificate a duplicate
certificate for the shares of T-NETIX Stock representing the Merger
Consideration deliverable in respect thereof as determined in accordance with
this Article 1.

                  (e) Subject to the other terms of this Agreement, (i) any
remaining Gateway Holdback Shares in excess of the amount of any Indemnification
Claims (as defined in Section 11.6) of T-NETIX will be issued to Gateway
Shareholders, and (ii) any remaining T-NETIX Reserve Shares in excess of the
amount of any Indemnification Claims of Gateway Shareholders will remain
authorized but unissued T-NETIX Stock, and will no longer be reserved and set
aside pursuant hereto, all on the earlier of the first anniversary of the
Closing Date or the date of publication of the first combined annual audited
financial statements of Gateway and T-NETIX, or on such earlier date as may be
mutually agreed upon in writing by T-NETIX and the Gateway Shareholders'
Representative.

                  (f) As of the Effective Time, Richard E. Cree shall, without
further action on his part or on the part of the Gateway Shareholders, become
the "Gateway Shareholders' Representative" hereunder. As Gateway Shareholders'
Representative, Mr. Cree shall have full power and authority to act for the
Gateway Shareholders and the Gateway Shareholder Indemnified Parties (as defined
in Section 11.2 hereof), on their behalf, and in their names, places and steads,
in taking all actions, fulfilling all duties and executing all documents as may
be required in connection with the Gateway Holdback Shares, the T-NETIX Reserve
Shares and any indemnification claims under Article 11 hereof.

         1.6 T-NETIX STOCK. The T-NETIX Stock to be issued and delivered to
Gateway Shareholders will not be registered under federal or state securities
laws, but rather, issued pursuant to an exemption therefrom. As a result, such
T-NETIX Stock is "restricted" stock as such term is defined under such
securities laws and cannot be sold, pledged or transferred unless subsequently
registered or unless an exemption is available allowing its resale. T-NETIX
shall file registration statements with respect to the T-NETIX Stock (including
a Form S-8 registration statement covering the shares underlying the T-NETIX
Options) within 120 days (180 days in the


                                      - 5 -

<PAGE>   100



case of the Form S-8 registration statement) after the Closing and use its best
efforts to cause such registration statements to become effective under
applicable state and federal securities laws within 180 days after the Closing
and to remain current and effective for as long as is necessary to allow each
Gateway Shareholder to sell such T-NETIX Stock publically without restriction
(except for restrictions that apply to persons who become affiliates (as that
term is defined in Rule 144) of T-NETIX). T-NETIX shall only have the obligation
to register such T-NETIX Stock one time. Such registration rights and
obligations shall terminate as to a particular Gateway Shareholder at such time
as that Gateway Shareholder can sell such Gateway Shareholder's T-NETIX Stock
without regard to volume or other limitations pursuant to Rule 144 under the
Securities Act of 1933.

         1.7 DISSENTING GATEWAY SHAREHOLDERS. Any shares of Gateway Stock held
by persons who have satisfied the requirements of Sections 5.11, 5.12 and 5.13
of the Texas Corporation Act related to the rights of dissenting shareholders
("Dissenters' Rights"), and have not effectively withdrawn or lost such
Dissenters' Rights (such persons being referred to as "Dissenting Gateway
Shareholders"), shall not be converted pursuant to this Agreement. Instead,
Dissenting Gateway Shareholders shall be entitled only to such Dissenters'
Rights. Each Dissenting Gateway Shareholder who is entitled to payment for his
or her shares of Gateway Stock pursuant to such Dissenters' Rights shall receive
payment from T-NETIX in an amount as determined pursuant to such Dissenters'
Rights. Upon payment by T-NETIX of any amount due to Dissenting Gateway
Shareholders, if the amount paid to Gateway Dissenting Shareholders exceeds the
value of the Merger Consideration (with T-NETIX Stock valued at the average
closing price of T-NETIX Stock for the five trading days immediately prior to
the date hereof) that would have otherwise been payable to such Dissenting
Gateway Shareholders, that number of Gateway Holdback Shares having a value
(with T-NETIX Stock valued at the average closing price of T-NETIX Stock for the
five trading days immediately prior to the date hereof) equal to such excess,
shall be released from classification as Gateway Holdback Shares. T-NETIX shall
not pay any amount to Dissenting Gateway Shareholders in an amount per share in
excess of the Merger Consideration unless directed to do so by the Gateway
Shareholders' Representative or by order of a court of competent jurisdiction.


                                    ARTICLE 2
                    REPRESENTATIONS AND WARRANTIES OF T-NETIX

         T-NETIX represents and warrants to Gateway and each of the Gateway
Shareholders that, except as set forth on the disclosure letter (the "T-NETIX
Disclosure Letter") separately delivered by T-NETIX to Gateway before the date
hereof (the items on such T-NETIX Disclosure Letter being identified by the
section or sections hereof to which they relate), the following statements are
true and accurate as of the date of this Agreement:




                                      - 6 -

<PAGE>   101
         2.1 ORGANIZATION, STANDING, CORPORATE AUTHORIZATION, AND
ENFORCEABILITY.

                  (a) T-NETIX is a corporation duly organized, validly existing
and operating under the laws of the State of Colorado. T-NETIX is in good
standing under the laws of the State of Colorado and has all requisite corporate
power and authority to carry on its businesses as currently conducted and to own
or lease and operate its properties. T-NETIX is qualified to do business and is
in good standing in each jurisdiction in which the property owned, leased or
operated by it, or the nature of the business conducted by it, makes such
qualification necessary, except where the failure to so qualify would not
materially affect the ability of T-NETIX to conduct its business there.

                  (b) This Agreement and any related agreements executed or to
be executed by T-NETIX in connection with transactions contemplated hereby (the
"T-NETIX Related Agreements") constitute the valid and legally binding
obligations of T-NETIX and are enforceable in accordance with their terms,
except as such enforceability may be limited by equitable principles and by
applicable bankruptcy, insolvency, reorganization, arrangement, moratorium or
similar laws relating to or affecting the rights of creditors generally. T-NETIX
has the requisite corporate power and authority to enter into this Agreement and
the T-NETIX Related Agreements.

                  (c) The execution and delivery of this Agreement, the T-NETIX
Related Agreements, and all other documents and instruments executed or to be
executed by T-NETIX pursuant to this Agreement, and the consummation of the
transactions contemplated hereby and thereby have been duly authorized by all
necessary corporate and other action on the part of T-NETIX. This Agreement and
the T-NETIX Related Agreements have been or will have been, at the time of their
respective executions and deliveries, duly executed and delivered by a duly
authorized officer of T-NETIX.

                  (d) T-NETIX does not own, directly or indirectly, the capital
stock (or other similar equity interests) of any other corporation, joint
venture, partnership, limited liability company or other similar entity.

         2.2 CAPITALIZATION. As of the date of this Agreement, the authorized
capital stock of T-NETIX consists only of 70,000,000 shares of T-NETIX Stock, of
which 8,557,567 shares are issued and outstanding, and 10,000,000 shares of
preferred stock, $0.01 par value per share, of which no shares are issued or
outstanding. All prior issuance of securities by T-NETIX and all prior
repurchases, redemptions or exchanges affecting the outstanding securities of
T-NETIX have complied with all applicable Legal Requirements (as defined below)
(including federal and state securities laws), preemptive rights and contractual
restrictions. All Shares of T-NETIX Stock have been duly authorized and validly
issued and are fully paid and nonassessable. Except as described above, T-NETIX
does not have shares of its capital stock authorized, issued or outstanding.
There are currently 1,906,300 shares of T-NETIX Stock underlying outstanding
T-NETIX Options. Set forth in the T-NETIX Disclosure Letter is a list of
outstanding T-NETIX Options, including numbers of underlying shares, amounts
vested and exercise prices. Except as described above, there are no outstanding
convertible or exchangeable securities, subscriptions, calls, options, warrants,
rights (contractual or arising by operation of law, including, without


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<PAGE>   102



limitation, rights of first refusal and preemptive rights), or other agreements
or commitments of any character to which T-NETIX is a party or by which it is
bound, relating to the issuance, purchase, other acquisition or voting of any
shares of the capital stock of, or other equity or ownership interest in
(collectively, "T-NETIX Equity Rights") T-NETIX. No bonds, debentures, notes or
other indebtedness having the right to vote under any circumstances (or
convertible into securities having such right to vote) of T-NETIX are issued and
outstanding. There are no agreements, arrangements or commitments of any
character (contingent or otherwise) pursuant to which any person or entity is or
may be entitled to receive any payment based on the revenues or earnings, or
calculated in accordance therewith, of T-NETIX. There are no voting trusts,
proxies or other agreements or understandings to which T-NETIX is a party or by
which T-NETIX is bound with respect to the voting of any shares of capital stock
or other T-NETIX Equity Rights.

         For purposes of this Agreement, the term "Legal Requirement" shall mean
any federal, state or local law, statute, legislation, ordinance, code, rule,
regulation, decree, award, order, permit, franchise, consent or authorization
of, any federal, state, local or other governmental body or agency, department,
commission, bureau, board, council, court, magistrate, panel or instrumentality
of the United States, any political subdivision thereof or any state or local
governmental authority.

         2.3 ARTICLES OF INCORPORATION AND BYLAWS; CERTAIN RECORDS. Copies of
the Articles of Incorporation, Bylaws, minute books and stock records of T-NETIX
have been made available to Gateway, and each such copy is true, correct and
complete. All material records of any type and description in whatever form or
medium that presently exist and that relate to the business or properties of
T-NETIX are in the possession or control of T-NETIX and are located at the
offices of T-NETIX or of its counsel, independent auditors, consultants, or
other advisors, and T-NETIX will have the right to possession of all such
records upon the consummation of the transactions contemplated by this
Agreement.

         2.4 COMPLIANCE WITH OTHER INSTRUMENTS AND LAWS. The execution and
delivery of this Agreement and the Related Agreements and the consummation of
the transactions contemplated hereby and thereby will not conflict with or
result in any violation of or default under any provision of the Articles of
Incorporation or Bylaws of T-NETIX or any material mortgage, indenture, trust,
lease, partnership or other agreement or other instrument, permit, concession,
grant, franchise, license, judgment, order, decree, or Legal Requirement
applicable to T-NETIX or any of the properties of T-NETIX, nor will they result
in the creation or imposition of any material lien, security interest, charge,
claim or other encumbrance of any nature whatsoever on any of the properties or
assets of T-NETIX or the shares of T-NETIX Stock, nor will they prevent or
materially delay the consummation of the transactions contemplated hereby.

         2.5 GOVERNMENTAL AUTHORIZATIONS; CONSENTS. No consents, licenses,
approvals or authorizations of, or registrations or declarations with, any
governmental authority, agency, bureau or commission, or any third party, are
required to be obtained or made (i) by T-NETIX in connection with the execution,
delivery, performance, validity and enforceability of this Agreement or any
Related Agreement, or (ii) by T-NETIX in connection with the sale or transfer


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<PAGE>   103



of the shares of T-NETIX Stock pursuant to the transactions contemplated by this
Agreement, and will not prevent or materially delay the consummation of the
transactions contemplated hereby.

         2.6 LITIGATION. No action, suit, proceeding or governmental
investigation is pending or, to the knowledge of T-NETIX, threatened, at law or
in equity, which seeks to question, delay or prevent, or could have the effect
of delaying or preventing, the consummation of all or any portion of the
transactions contemplated hereby.

         2.7 FINANCIAL STATEMENTS; CONDUCT OF T-NETIX BUSINESS; NO UNDISCLOSED
LIABILITIES.

                  (a) T-NETIX has delivered to Gateway T-NETIX's Form 10-K for
the year ended July 31, 1998, Annual Report to Shareholders for the year ended
July 31, 1998, Proxy Statement dated November 10, 1998 relating to T-NETIX's
Annual Meeting of Shareholders to be held December 10, 1998, Form 10-Q for the
fiscal quarter ended October 31, 1998, Form 8-K dated December 15, 1998, and
Form 8-K dated December 31, 1998 (collectively referred to as the "SEC
Filings"). To the extent applicable, all of the SEC Filings have been prepared
in accordance with GAAP consistently applied for all relevant periods (except as
indicated therein) and present fairly the financial position of T-NETIX as of
the dates thereof and the results of its operations for the periods then ended,
subject, as applicable, to normal recurring year-end adjustments and the absence
of notes.

                  (b) T-NETIX has no Claims, debts, obligations, guaranties of
the obligations of others or liabilities (whether absolute or contingent,
liquidated or unliquidated, due or to become due) that are required by GAAP to
be reflected in financial statements or notes thereto, except for (i) Claims,
debts, obligations, guaranties and liabilities to the extent reflected or
reserved against in the T-NETIX Financial Statements, (ii) debts, obligations,
guaranties and liabilities incurred or entered into subsequent to October 31,
1998, in the ordinary course of business and otherwise not in contravention of
this Agreement, and (iii) debts, obligations and liabilities relating to this
Agreement and the Related Agreements and instruments being executed and
delivered in connection herewith and the transactions referred to herein and
therein.

                  (c) As used in this Agreement, "Claims" means any and all
claims, liabilities, causes of action, arbitrations, audits, hearings,
investigations, litigation or suits, whether in contract, tort or otherwise,
whether statutory or common law, whether civil, criminal, administrative,
investigative, formal or informal, whether known or unknown, fixed or
contingent.

         2.8 ABSENCE OF CERTAIN CHANGES OR EVENTS. Except (i) for matters
disclosed in the SEC Filings or (ii) as contemplated by this Agreement, T-NETIX
has not, since July 31, 1998:

                  (a) undergone any change in its condition (financial or
otherwise), properties, assets, liabilities, business or operations, except for
changes in the ordinary course of business which have not either individually or
in the aggregate had a negative material effect on T-NETIX;


                                      - 9 -

<PAGE>   104




                  (b) changed any of its methods of accounting or accounting
practices or classifications of assets or liabilities, or failed to maintain its
books of account in the usual, regular and ordinary manner in accordance with
GAAP unless required by regulation or GAAP;

                  (c) modified the material terms of, or canceled or terminated,
any T-NETIX Material Contract (as defined below);

                  (d) terminated, discharged or received any written notice
regarding the resignation, discharge or termination of any officer;

                  (e) established or adopted any T-NETIX Benefit Plan, or
increased the amount of the wages, bonus, salary, commissions, fringe benefits
or other compensation or remuneration payable to, any of its directors, officers
or employees, except such salary increases as do not exceed T-NETIX's current
wage scale or pre-date normal review time periods for any individual, and except
bonuses consistent with past practices;

                  (f) declared, set aside, made or paid any dividend or other
distribution in respect of its capital stock or purchased or redeemed, directly
or indirectly, any shares of its capital stock, or split up, combined,
reclassified, redeemed, repurchased or otherwise reacquired any of its capital
stock;

                  (g) issued or sold any shares of its capital stock of any
class or any subscriptions, options, warrants, calls or other rights to purchase
directly or indirectly any such shares or any securities directly or indirectly
convertible into or exchangeable for such shares or made any other change in its
capital structure;

                  (h) incurred any direct or contingent liability for borrowed
money or guaranteed the monetary obligations of any other person or entity, or
made any monetary investment in, advance to or loan to any person or entity
other than in the ordinary course of business;

                  (i) mortgaged, pledged or subjected to any material lien,
lease, security interest or other charge or encumbrance any of its properties or
assets, tangible or intangible;

                  (j) made any material change in its practices, operations or
policies with respect to the method for selling goods or services, or other
method for accounting for sales, the conduct of accounts receivable collection
or accounts payable payment activities or the maintenance of inventory levels;

                  (k) merged or consolidated with or into any other entity;

                  (l) implemented or adopted any change in its tax methods,
principles or elections;


                                     - 10 -

<PAGE>   105




                  (m) acquired or disposed of any material assets or properties
or made any capital improvement other than in the ordinary course of business;
or

                  (n) suffered any damage, destruction or loss (whether or not
covered by insurance) which has had or could reasonably be expected to have a
material effect on T-NETIX.

         2.9 TITLE TO PROPERTY, ABSENCE OF LIENS AND ENCUMBRANCES.

                  (a) For the purposes of this Agreement, the term "Permitted
Liens" shall mean liens for current taxes not yet due and imperfections of
title, liens and encumbrances, if any, which do not materially and adversely
affect the use, value or marketability of the property affected thereby.

                  (b) T-NETIX has good title to its owned material assets,
including the tangible assets reflected on the balance sheet included in the SEC
Filings, other than assets disposed of or used after the date thereof in the
ordinary course of business for fair value, and other than T-NETIX Intellectual
Property, which is addressed by Section 2.15 hereof. The tangible assets owned
by T-NETIX are owned free and clear of all liens, mortgages, pledges, charges,
security interests or encumbrances, except for Permitted Liens. T-NETIX owns,
leases or licenses, and has adequate rights to use all material real and
personal property and other material assets necessary to conduct a going concern
on a basis consistent with past practices. The assets of T-NETIX are in good
operating condition and repair (subject to normal wear and tear). Neither the
whole nor any part of T-NETIX's real property ("T-NETIX Real Property") has been
condemned by any public authority, nor, to T-NETIX's knowledge, is any such
condemnation or taking threatened or contemplated. There exists free and
uninterrupted egress and ingress over a public roadway to all operating
facilities.

                  (c) T-NETIX validly holds the leasehold created by the leases
(true, complete and correct copies of which have been provided to Gateway) as
described in the T-NETIX Disclosure Letter as the "T-NETIX Leased Property" and
such leases are enforceable by T-NETIX as the lessee thereunder.

                  (d) T-NETIX is not a party to any agreement granting any third
party the right or an option to purchase or lease all or any portion of the
T-NETIX Real Property or any personal property of T-NETIX.

                  (e) There is not pending nor has T-NETIX received any written
notice of (i) any Claim or proceeding asserting or seeking to establish a title
interest in the T-NETIX Real Property or T-NETIX Leased Property, or any Claim
of default ("T-NETIX Title Notice") under any of the leases under which
leaseholds have been created, or (ii) the existence of any facts or proceedings
which may result in the issuance of such a T-NETIX Title Notice; and, there are
not any such proceedings nor is there any T-NETIX Title Notice.



                                     - 11 -

<PAGE>   106



         2.10 FULL AUTHORITY; COMPLIANCE WITH LAWS. To the knowledge of T-NETIX,
T-NETIX is in compliance with all material applicable Legal Requirements. Set
forth in the T-NETIX Disclosure Letter is a list of any and all material
permits, licenses, consents, orders, approvals, franchises, certificates or
other authorizations under any applicable Legal Requirement (collectively, the
"Permits"), issued to T-NETIX in connection with the ownership, operation and
maintenance of its businesses or assets. T-NETIX has obtained and maintained all
Permits. Each of the Permits is in full force and effect, and T-NETIX is
substantially in compliance with all the provisions of such Permits.

         2.11 T-NETIX BENEFIT PLANS.

                  (a) Except as set forth in its SEC Filings, T-NETIX does not
maintain, sponsor, participate in or contribute to, or is required to contribute
to, directly or indirectly, or has any obligation under:

                           (i) Any employee benefit plan, employee pension
         benefit plan, employee welfare benefit plan (including any medical,
         dental, disability, accident or sickness, salary continuation or life
         insurance plan or arrangement), or multiemployer plan, all as defined
         in the Employee Retirement Income Security Act of 1974, as amended
         ("ERISA"), regardless of whether or not a plan is exempt from some or
         all of the otherwise applicable requirements of ERISA; or

                           (ii) Except as disclosed in the SEC Filings, any
         bonus, commission, deferred compensation, incentive compensation,
         restricted stock, stock purchase, stock option, stock appreciation
         right, debenture, supplemental pension, profit sharing, royalty pool,
         vacation, sick leave, severance or termination pay policies,
         supplemental unemployment benefits plan, loan guarantee, relocation
         assistance, employee loan or other extensions of credit, or other
         similar plan, program, agreement, policy, commitment, arrangement or
         benefit currently in effect under which current or former employees or
         their dependents, beneficiaries, representatives or estates are
         currently or will in the future be entitled to benefits.

                  (b) With respect to each plan, program, agreement, policy,
commitment, arrangement or benefit described in its SEC Filings (a "T-NETIX
Benefit Plan"), T-NETIX has furnished to Gateway true, correct and complete
copies of such T-NETIX Benefit Plan, including amendments, if applicable,
summary plan descriptions, if applicable, the Internal Revenue Service
determination letter, if applicable, and the two most recent Forms 5500, 5500-C
or 5500-R, as applicable, and has made available to Gateway the most recent
actuarial reports of or regarding such T-NETIX Benefit Plan. As to each T-NETIX
Benefit Plan not reduced to writing, T-NETIX has provided to Gateway a
description of all material elements of such T-NETIX Benefit Plan.

                  (c) Except as set forth in its SEC Filings:



                                     - 12 -

<PAGE>   107



                           (i) Each T-NETIX Benefit Plan has been operated and
         administered substantially in accordance with its terms and applicable
         laws, including but not limited to ERISA and the Code. Each T-NETIX
         Benefit Plan that is intended to be qualified under the Code either has
         received from the Internal Revenue Service, or timely applied for, a
         determination letter on such T-NETIX Benefit Plan's qualified status.

                           (ii) To the knowledge of T-NETIX, neither T-NETIX nor
         any other party in interest (within the meaning of ERISA) has engaged
         in any non-exempt prohibited transaction with respect to any T-NETIX
         Benefit Plan under ERISA or the Code, and there is no pending assertion
         of the occurrence of any such transaction.

                           (iii) All contributions required under applicable law
         or the terms of any T-NETIX Benefit Plan, collective bargaining
         agreement or other agreement relating to a T-NETIX Benefit Plan to be
         paid by T-NETIX for all periods prior to the Closing Date have been or
         will have been completely and timely made to each T-NETIX Benefit Plan
         when due, and T-NETIX has established adequate reserves on its books to
         meet liabilities for contributions accrued but that have not been made
         because they are not yet due and payable.

                           (iv) There is no current or pending investigation or
         audit by the Internal Revenue Service, the Department of Labor or any
         other governmental entity of any T-NETIX Benefit Plan, nor has T-NETIX
         received notification from any such governmental entity of such a
         pending audit or investigation, and there are no actions, suits or
         claims pending (other than routine claims for benefits) or threatened,
         with respect to any T-NETIX Benefit Plan or against the assets of any
         such T-NETIX Benefit Plan.

                           (v) Except as disclosed in its SEC Filings, no
         T-NETIX Benefit Plan is or ever has been a plan subject to Title IV of
         ERISA, Part 3 of Subtitle B of Title I of ERISA or Section 412 of the
         Code ("Pension Plan") or is or ever has been a multiemployer plan as
         defined in Section 3(37) of ERISA or Section 414(f) of the Code
         ("Multiemployer Plan"). T-NETIX has not incurred any liability to the
         Pension Benefit Guaranty Corporation ("PBGC") with respect to any
         Pension Plan, except for required premium payments, which payments have
         been made when due. No accumulated funding deficiency (within the
         meaning of Section 312 of the Code or Section 302 of ERISA) or
         reportable event (as defined in Section 4043 of ERISA) has occurred
         with respect to any Pension Plan. No event has occurred in connection
         with any Pension Plan which could subject T-NETIX or any Pension Plan,
         or Gateway, its Affiliates or any of their respective benefit plans, to
         liability under Section 4062, 4063 or 4064 of ERISA, and, no event has
         occurred which might give rise to any liability of T-NETIX or any
         Pension Plan, or Gateway, its Affiliates or any of their respective
         benefit plans, to the PBGC under Title IV of ERISA or which could
         reasonably be anticipated to result in any Claims being made against
         T-NETIX or any Pension Plan, or Gateway, its Affiliates or any of their
         respective benefit plans, by the PBGC. For purposes of this Agreement,
         an "Affiliate" of a party is any individual, company or other entity
         that owns five percent (5%) or more of the voting


                                     - 13 -

<PAGE>   108



         or capital stock or other equity interest of such party or of which
         five percent (5%) of the voting or capital stock or other equity
         interest is owned or otherwise controlled by that party or an Affiliate
         of that party, as the case may be. T-NETIX has not incurred and, as a
         result of the transactions contemplated by this Agreement, will not
         incur any withdrawal liability (including any contingent or secondary
         withdrawal liability) within the meaning of Section 4201 and 4204 of
         ERISA to any Multiemployer Plan. Upon a complete withdrawal or a
         partial withdrawal (as those terms are defined in Section 4203 and
         4205, respectively, of ERISA) from a Multiemployer Plan occurring on or
         before the close of the most recent fiscal year of each such
         Multiemployer Plan ended prior to the Closing Date, T-NETIX would not
         have been subject to withdrawal liability under Title IV, Subtitle E,
         Part 1 of ERISA and, there has been no change in the financial
         condition of any Multiemployer Plan that would result in the imposition
         of such liability due to such complete or partial withdrawal on or
         before the Closing Date.

                           (vi) T-NETIX has substantially complied with all
         notice and continuation coverage requirements applicable to group
         health plans under the Consolidated Omnibus Budget Reconciliation Act
         of 1985, as amended ("COBRA"), with respect to all medical and health
         benefits provided by T-NETIX that are subject to COBRA.

                           (vii) No T-NETIX Benefit Plan amendments have been
         adopted nor will any such amendments be adopted prior to the Closing
         Date except as may be necessary for compliance purposes with the Code
         or ERISA and there is no arrangement, commitment or understanding to
         create any additional plan which would constitute a T-NETIX Benefit
         Plan or increase the rate of benefit accrual or contribution
         requirement under any of the T-NETIX Benefit Plans or modify, change or
         terminate any existing T-NETIX Benefit Plan.

                           (viii) T-NETIX is not a member of a "controlled
         group" of organizations (as defined in Sections 414(b), (c), (m) or (o)
         of the Code) which sponsors or maintains any employee benefit plan
         within the meaning of Section 3(3) of ERISA which under Title IV of
         ERISA or any section of the Code or ERISA would subject T-NETIX or
         Gateway or any of their respective employee benefit plans or the
         fiduciaries thereof or their respective assets to any taxes,
         encumbrances, penalties or other liabilities.

         2.12 CLAIMS. Except as set forth in the SEC Filings, there are no
Claims against, or to the knowledge of T-NETIX, threatened against, T-NETIX or
its properties, at law or in equity or before any court, governmental
department, commission, board, agency, authority or instrumentality, domestic or
foreign. T-NETIX is not subject to any judgment, stipulation, order or decree
arising from any action, suit, proceeding or investigation which could be
reasonably expected to have, individually or in the aggregate, a material effect
on T-NETIX before or after the Closing Date. No action, suit, proceeding or
governmental investigation is pending or threatened against T-NETIX which seeks
to question, delay or prevent the consummation of the transactions contemplated
hereby.


                                     - 14 -

<PAGE>   109




         2.13 TAXES.

                  (a) Except for the tax years set forth in the T-NETIX
Disclosure Letter, for which valid extensions of the time for filing Tax Returns
have been filed, T-NETIX has filed or will file or cause to be filed, within the
applicable period prescribed by law, all federal, state, local, foreign or other
Tax Returns required by such law to be filed by T-NETIX for all taxable periods
ending on or prior to the Closing Date.

                  (b) T-NETIX has paid, within the time and in the manner
prescribed by law, all Taxes shown as due on all such Tax Returns and, with
respect to all Tax Returns which T-NETIX has not yet filed, but will file prior
to the Closing Date, shall pay, within the time and in the manner prescribed by
law, all Taxes shown as due on such Tax Returns.

                  (c) For purposes of this Agreement, "Taxes" in the plural and
"Tax" in the singular shall refer to any and all taxes, charges, fees, levies,
or other assessments of whatever kind or nature, including, but not limited to,
any federal, state, local or foreign net income, gross income, gross receipts,
unitary, license, payroll, unemployment, excise, severance, stamp, occupation,
premium, windfall profits, environmental (including, but not limited to, taxes
under section 59A of the Code), occupational, leasing, lease, fuel, customs,
duties, capital stock, franchise, profits, withholding, Social Security,
unemployment, disability, ad valorem, real property, personal property (tangible
and intangible), sales, use, transfer, registration, value added, alternative or
minimum, estimated, or any other kind of tax whatsoever, including the recapture
of any tax items, recoveries under escheat or similar laws, and including any
interest, addition, penalty or other associated charge thereto, whether disputed
or not. For purposes of this Agreement, "Tax Returns" shall mean any returns,
reports or statements with respect to Taxes which are required to be filed with
any taxing authority.

                  (d) No Claim or assertion has been made against T-NETIX by any
Tax authority in any jurisdiction in which no Tax Return has been filed by
T-NETIX that T-NETIX is or may be subject to taxation of any sort in such
jurisdiction or otherwise is required to file a Tax Return in such jurisdiction.

                  (e) Except for Permitted Liens, there are no Tax liens or
other security interests or encumbrances of any type resulting from Tax
liabilities on any of the assets of T-NETIX.

                  (f) There is no dispute, Claim or any other controversy
concerning any Tax liability of T-NETIX either (i) raised or asserted by any Tax
authority in writing; or (ii) whether or not formally asserted or claimed.

                  (g) None of the income Tax Returns for any open tax year that
include T-NETIX has been audited by any taxing authority. T-NETIX has made
available to Gateway a correct and complete copy of each federal income Tax
Return, examination report, statement of


                                    - 15 -

<PAGE>   110



deficiency, or any other administrative or judicial assertion, assessment or
determination of federal income Tax liability with respect to T-NETIX.

                  (h) T-NETIX has employed a permissible method of Tax
accounting, validly elected for each taxable period ending on or prior to the
Closing Date. T-NETIX has not changed, or requested to be permitted to change,
any method of Tax accounting.

                  (i) T-NETIX has not waived any statute of limitations with
respect to any Taxes or agreed to any extension of time with respect to a Tax
assessment or deficiency, except for such waivers or extensions which, by their
terms, have elapsed as of the date of this Agreement, nor are any requests for
such waivers or extensions pending.

                  (j) T-NETIX (i) has not filed a consent under Section 341(f)
of the Code concerning collapsible corporations, (ii) has not made any payments,
is not obligated to make any payments, and is not a party to any agreement that
will render it (or the payor of compensation under the agreement) subject to the
provision of section 280G of the Code regarding payments as a result of a change
in control, (iii) has not been a United States real property holding company
within the meaning of section 897(c)(2) of the Code and (iv) is not a party to
any Tax allocation or Tax sharing agreement.

                  (k) The unpaid Taxes of T-NETIX, including Taxes attributable
to all periods ending on or prior to the Closing Date which are not yet due and
payable, do not exceed the reserve on the SEC Filings for tax liability.

         2.14 ENVIRONMENTAL QUALITY.

                  (a) For the purposes of this Agreement, the term "Hazardous
Materials" shall mean any substance, material or waste which is regulated by any
local government authority, the State of Texas, or other state where applicable,
or the United States Government, including, without limitation, any material or
substance which is (a) defined as a "hazardous waste," "hazardous material,"
"hazardous substances," "extremely hazardous waste," "extremely hazardous
substance," "regulated substance" or "restricted hazardous waste" under any
provision of the laws of the State of Texas, or any other applicable law,
including, but not limited to, the Resource Conservation and Recovery Act, 42
U.S.C. Section 6901 et seq. ("RCRA"), and the Comprehensive Environmental
Response, Compensation, and Liability Act, 42 U.S.C. Section 9601 et seq.
("CERCLA") and (b) petroleum, including crude oil and any fraction thereof and
any refined petroleum products and derivatives thereof.

                  (b) For purposes of this Agreement, the term "Environmental
Laws" shall mean all federal, state and local laws, ordinances and regulations
pertaining to air and water quality, soils and subsurface strata, natural
resources, Hazardous Materials, waste generation, management, transportation and
disposal or other environmental matters, including the Clean Water Act, the
Clean Air Act, the Federal Water Pollution Control Act, the Solid Waste Disposal
Act, the Toxic Substance Control Act, 15 U.S.C. Section 2601, et seq., RCRA,
CERCLA, and the


                                     - 16 -

<PAGE>   111



rules, regulations and ordinances of the city and county in which the Property
is located, the Environmental Protection Agency and all other applicable
federal, state, regional and local agencies.

                  (c) Neither T-NETIX nor, to the knowledge of T-NETIX, any
previous owner, tenant, occupant, user or operator of the T-NETIX Real and
Leased Property has released or disposed of any Hazardous Materials on, under,
in or about the site of the T-NETIX Real and Leased Property, except when
substantially in compliance with applicable Environmental Laws.

                  (d) To the knowledge of T-NETIX, the T-NETIX Real and Leased
Property substantially complies with all applicable Environmental Laws. Without
limiting the generality of the foregoing, T-NETIX is not currently liable nor,
to its knowledge, potentially liable for any response costs or natural resource
damages under Sections 107(a) or 113(f) of CERCLA, or under any other so-called
"superfund" or "superlien" law or similar Legal Requirement, at or with respect
to the T-NETIX Real and Leased Property and, to the knowledge of T-NETIX, no
circumstances exist, which with notice or lapse of time or both could result in
such liability.

                  (e) To the knowledge of T-NETIX, the conduct of T-NETIX's
business substantially complies with all applicable Environmental Laws.

                  (f) T-NETIX has not sent any Hazardous Material to a site
that, pursuant to any applicable Environmental Laws, (i) has been placed on the
"National Priorities List" of hazardous waste sites or any similar state list,
(ii) is otherwise designated or identified as a potential site for remediation,
cleanup, closure or other environmental remedial activity, or (iii) is subject
to a Claim, an administrative order or other request to take "removal" or
"remedial" action, as defined in any applicable Environmental Laws, or to make
payment for the costs of cleaning up the site.

                  (g) T-NETIX (i) is not involved in any suit or proceeding with
respect to a release or threatened release of any Hazardous Material or a
violation or alleged violation of any applicable Environmental Laws, nor has
T-NETIX received any notice of any Claims from any person or entity relating to
property damage or to personal injuries from exposure to any Hazardous Material,
nor has T-NETIX received any notice or request for information from any
governmental agency or authority or other third party with respect to any of the
foregoing, and (ii) has not failed to timely file any report required to be
filed, failed to acquire all necessary certificates, approvals and permits or
failed to generate and maintain all required data, documentation and records
under all applicable Environmental Laws.

                  (h) There are currently no underground storage tanks in or
under the T-NETIX Real and Leased Property, and no underground storage tank was
removed from the T-NETIX Real and Leased Property during the period that T-NETIX
maintained an interest in such property.



                                     - 17 -

<PAGE>   112



                  (i) To its knowledge, T-NETIX has provided Gateway with all
information in its possession regarding the environmental condition of the
T-NETIX Real and Leased Property.

         2.15 INTELLECTUAL PROPERTY. T-NETIX either owns or has the right to use
by license, sublicense, or other written agreement, all of the inventions,
improvements, domestic and foreign patents and applications therefor, customer
lists, copyrights, copyright registrations and applications therefor,
trademarks, trade names, service marks, trade dress, logos, rights in computer
software, and all rights granted or retained in licenses under any of the
foregoing which are used in connection with the conduct of T-NETIX's business as
presently conducted (collectively the "T-NETIX Intellectual Property"). None of
the T-NETIX Intellectual Property used in connection with the conduct of
T-NETIX's business is, or has been in the past five years, involved in, or the
subject of, any pending or, to the knowledge of T-NETIX, threatened
infringement, interference, opposition or similar action, suit or proceeding
that would significantly affect the use or practice of its T-NETIX Intellectual
Property rights. None of the T-NETIX Intellectual Property has infringed, or is
now infringing on, or otherwise violating, the rights of any third party nor
does the use of such T-NETIX Intellectual Property by T-NETIX infringe on, or
otherwise violate, the rights of others. Since its organization, T-NETIX has
taken reasonable measures to protect the secrecy, confidentiality and value of
all intellectual property and inventions. Any former or current employees of
T-NETIX who, alone or with others, developed, invented, discovered, derived,
programmed, or designed any significant aspect of the T-NETIX Intellectual
Property have signed confidentiality and work-for-hire agreements assigning the
rights to such T-NETIX Intellectual Property to T-NETIX, relinquishing all
rights thereto and agreeing to maintain the confidentiality thereof. T-NETIX is
not aware of any person who is in violation of any such agreement. The license
fees, royalties and other amounts payable by T-NETIX in connection with the use
of the T-NETIX Intellectual Property, together with the terms and conditions on
which, and periods for which such amounts are payable, are set forth in the
T-NETIX Disclosure Letter.

         2.16 LABOR MATTERS. T-NETIX has not entered into or is a party to any
collective bargaining agreement, memorandum of understanding or other written
document binding on T-NETIX respecting terms and conditions of employment with
respect to an identified group of employees with any labor union that would
cover any T-NETIX employees and (b) the employees of T-NETIX are not subject to
any collective bargaining agreement, memorandum of understanding or other
written document binding on T-NETIX respecting terms and conditions of
employment with respect to an identified group of employees, nor are any such
employees, in their capacities as employees, represented by any labor union.
There are no Claims, controversies, labor disturbances, investigations,
proceedings or complaints pending or threatened by any governmental agency or
any of T-NETIX's employees or any party or parties representing any of such
employees against T-NETIX before any court, arbitrator or other tribunal. To the
best of T-NETIX's knowledge, there are no organizational efforts presently being
made or threatened by or on behalf of any labor union with respect to the
employees of T-NETIX nor has there been in the last five (5) years. T-NETIX has
not experienced a work stoppage, strike, lock-out or other labor disturbance
within the past five (5) years, and there is no work stoppage, strike, lock-out
or other labor disturbance presently occurring, or threatened. T-NETIX has
substantially complied


                                     - 18 -

<PAGE>   113


with all Legal Requirements relating to its employees, the employment of labor,
and the safety and health of employees, including, without limitation, all Legal
Requirements relating to occupational health and safety, discrimination,
unemployment, wages, hours, the Family and Medical Leave Act, collective
bargaining, and the collection and payment of withholding taxes and similar
taxes in respect of the business of T-NETIX.

         2.17 BROKERS AND FINDERS. No person nor entity is entitled to any
brokerage commission, finder's fee or like payment in connection with the
transactions contemplated in this Agreement.

         2.18 T-NETIX'S KNOWLEDGE. No officer or director of T-NETIX has actual
knowledge, as of the date hereof, of any state of facts which will have a
negative material effect on T-NETIX, except for such matters as have been
disclosed to Gateway or its representatives and are contained in the T-NETIX
Disclosure Letter.

         2.19 YEAR 2000 COMPLIANCE.

                  (a) All of the computer hardware, software and information
systems, including without limitation the financial, operational and
manufacturing systems, used by T-NETIX are Year 2000 Compliant. For purposes of
this Agreement, "Year 2000 Compliant" shall mean that such systems: (i) are
prior to, during and after calendar year 2000 A.D. capable of operating without
errors relating to date data, including errors relating to date data which
represents or references different calendar centuries or more than one century,
and of providing all date related functionalities, interfaces and data fields,
including the indication of century; (ii) are able to accurately manage and
process date and date-related data (including, but not limited to, calculating,
comparing, sequencing and sorting) from, into and between the twentieth and
twenty-first centuries, including single and multiple centuries and leap years;
and (iii) shall not abnormally terminate or provide invalid or incorrect results
due to date or date-related data, specifically including date data which
represents or references different centuries or more than one century.

                  (b) The hardware and software sold or licensed by T-NETIX to
customers are Year 2000 Compliant. The cost to T-NETIX of replacing products
which are not Year 2000 Compliant will not exceed $600,000 after the date
hereof.

         2.20 CUSTOMERS AND VENDORS. The T-NETIX Disclosure Letter contains true
and correct lists of the 20 largest customers and the 10 largest vendors of
T-NETIX during the 12- month period ended July 31, 1998, and the three-month
period ended October 31, 1998, with the amount of sales made to each such
customer, or the amount of purchases from each such vendor, as the case may be,
during such period as reasonably ascertained from readily available information,
such amounts being estimated in good faith as being within five percent (5%) of
the actual sales made to such customer or, the amount paid to such vendor, as
the case may be. T-NETIX does not have any information indicating that any of
these customers or vendors


                                     - 19 -

<PAGE>   114



intends to cease doing business with T-NETIX or significantly alter the amount
of the business that it is presently doing with T-NETIX.

         2.21 ACCURACY. The representations and warranties made by T-NETIX to
Gateway and Gateway Shareholders set forth in this Agreement, the T-NETIX
Disclosure Letter (including any Updated T-NETIX Disclosure Letter (as defined
below)) delivered, or to be delivered, to Gateway prior to Closing, and the
written agreements, instruments and documents delivered and to be delivered
pursuant to or in connection with this Agreement and to which Gateway has been,
or will be, afforded access, do not include an untrue statement of material fact
or omit to state any material fact necessary to make them, when taken together
and in light of the circumstances in which they were or are made, not misleading
in any material respect.


                                    ARTICLE 3
                    REPRESENTATIONS AND WARRANTIES OF GATEWAY

         Gateway represents and warrants to T-NETIX that, except as set forth in
the disclosure letter (the "Gateway Disclosure Letter") separately delivered by
Gateway to T-NETIX before the date hereof (the items on such Gateway Disclosure
Letter being identified by the section or sections hereof to which they relate),
the following statements are true and accurate as of the date of this Agreement:

         3.1 ORGANIZATION, STANDING, CORPORATE AUTHORIZATION, AND
ENFORCEABILITY.

                  (a) Gateway is a corporation duly organized, validly existing
and operating under the laws of the State of Texas. Gateway is in good standing
under the laws of the State of Texas and has all requisite corporate power and
authority to carry on its businesses as currently conducted and to own or lease
and operate its properties. Gateway is qualified to do business and is in good
standing in each jurisdiction in which the property owned, leased or operated by
it, or the nature of the business conducted by it, makes such qualification
necessary, except where the failure to so qualify would not materially affect
the ability of Gateway to conduct its business there.

                  (b) This Agreement and all other agreements, documents and
instruments executed or to be executed by Gateway in connection herewith (the
"Gateway Related Agreements") constitute the valid and legally binding
obligations of Gateway and are enforceable in accordance with their terms,
except as such enforceability may be limited by equitable principles and by
applicable bankruptcy, insolvency, reorganization, arrangement, moratorium or
similar laws relating to or affecting the rights of creditors generally. Gateway
has the requisite corporate power and authority to enter into this Agreement and
the Gateway Related Agreements.

                  (c) The execution and delivery of this Agreement and the
Gateway Related Agreements, and the consummation of the transactions
contemplated hereby and thereby have been duly authorized by all necessary
corporate and other action on the part of Gateway. This


                                     - 20 -

<PAGE>   115



Agreement and the Gateway Related Agreements have been or will have been, at the
time of their respective executions and deliveries, duly executed and delivered
by a duly authorized officer of Gateway.

                  (d) Gateway does not own, directly or indirectly, the capital
stock (or other similar equity interests) of any other corporation, joint
venture, partnership, limited liability company or other similar entity.

         3.2 CAPITALIZATION. As of the date of this Agreement, the authorized
capital stock of Gateway consists only of 1,000,000 shares of Gateway Stock, of
which 729,004 shares are issued and outstanding. All of the outstanding shares
of Gateway Stock are owned by, or will at the Closing be owned by the Gateway
Shareholders. All prior issuance of securities by Gateway and all prior
repurchases, redemptions or exchanges affecting the outstanding securities of
Gateway have complied with all applicable Legal Requirements (including federal
and state securities laws), preemptive rights and contractual restrictions. Set
forth in the Gateway Disclosure Letter is a list of all prior issuances of
Gateway Stock, and the status of each certificate representing such shares. The
shares have been duly authorized and validly issued and are fully paid and
nonassessable. Except as described above, Gateway does not have shares of its
capital stock authorized, issued or outstanding. There are currently 69,040
shares of Gateway Stock underlying outstanding Gateway Options. Set forth in the
Gateway Disclosure Letter is a list of outstanding Gateway Options, including
optionees, numbers of underlying shares, vesting schedules, exercise prices and
change-of-control acceleration provisions. Except as described above, there are
no outstanding convertible or exchangeable securities, subscriptions, calls,
options, warrants, rights (contractual or arising by operation of law,
including, without limitation, rights of first refusal and preemptive rights),
or other agreements or commitments of any character to which Gateway or to
Gateway's knowledge any of its shareholders is a party or by which any of them
is bound, relating to the issuance, purchase, other acquisition or voting of any
shares of the capital stock of, or other equity or ownership interest in
(collectively, "Gateway Equity Rights") Gateway. All Gateway Equity Rights
listed in the Gateway Disclosure Letter will expire or be canceled at Closing in
exchange for T-NETIX Options as provided herein. No bonds, debentures, notes or
other indebtedness having the right to vote under any circumstances (or
convertible into securities having such right to vote) of Gateway are issued and
outstanding. There are no voting trusts, proxies or other agreements or
understandings to which Gateway or, to Gateway's knowledge, any Gateway
Shareholder is a party or by which Gateway or any Gateway Shareholder is bound
with respect to the voting of any shares of capital stock or other Gateway
Equity Rights.

         3.3 ARTICLES OF INCORPORATION AND BYLAWS; CERTAIN RECORDS. Copies of
the Articles of Incorporation, Bylaws, minute books and stock records of Gateway
have been made available to T-NETIX, and each such copy is true, correct and
complete. All material records of any type and description in whatever form or
medium that presently exist and that relate to the business or properties of
Gateway are in the possession or control of Gateway and are located at the
offices of Gateway or of its counsel, independent auditors, consultants, or
other advisors, and Gateway


                                    - 21 -

<PAGE>   116

will have the right to possession of all such records upon the consummation of
the transactions contemplated by this Agreement.

         3.4 COMPLIANCE WITH OTHER INSTRUMENTS AND LAWS. The execution and
delivery of this Agreement and the Related Agreements and the consummation of
the transactions contemplated hereby and thereby will not conflict with or
result in any violation of or default under any provision of the Articles of
Incorporation or Bylaws of Gateway or any material mortgage, indenture, trust,
lease, partnership or other agreement or other instrument, permit, concession,
grant, franchise, license, judgment, order, decree, or Legal Requirement
applicable to Gateway or any of the properties of Gateway, nor will they result
in the creation or imposition of any material lien, security interest, charge,
claim or other encumbrance of any nature whatsoever on any of the properties or
assets of Gateway or the shares of Gateway Stock, nor will they prevent or
materially delay the consummation of the transactions contemplated hereby.

         3.5 GOVERNMENTAL AUTHORIZATIONS; CONSENTS. No consents, licenses,
approvals or authorizations of, or registrations or declarations with, any
governmental authority, agency, bureau or commission, or any third party, are
required to be obtained or made (i) by Gateway in connection with the execution,
delivery, performance, validity and enforceability of this Agreement or any
Related Agreement, or (ii) by Gateway or any Gateway Shareholder in connection
with the sale or transfer of the shares of Gateway Stock pursuant to the
transactions contemplated by this Agreement, and will not prevent or materially
delay the consummation of the transactions contemplated hereby.

         3.6 LITIGATION. No action, suit, proceeding or governmental
investigation is pending or, to the knowledge of Gateway threatened, at law or
in equity, which seeks to question, delay or prevent, or could have the effect
of delaying or preventing, the consummation of all or any portion of the
transactions contemplated hereby.

         3.7 FINANCIAL STATEMENTS; CONDUCT OF GATEWAY BUSINESS; NO UNDISCLOSED
LIABILITIES.

                  (a) Gateway has delivered to T-NETIX (i) the audited balance
sheets of Gateway as of December 31, 1997, 1996 and 1995, and the related
audited statements of income, retained earnings and cash flows for the fiscal
years then ended, accompanied in each case by the independent auditor's report
of KPMG LLP, independent certified public accountants (such financial
statements, including the notes thereto, hereinafter being referred to as the
"Annual Financial Statements"), and (ii) the unaudited consolidated balance
sheet of Gateway as of November 30, 1998, and the related unaudited consolidated
statements of income, stockholders' equity and cash flows for the eleven (11)
months ended November 30, 1998 (the "Interim Financial Statements") (the Annual
Financial Statements and the Interim Financial Statements hereinafter being
referred to as the "Financial Statements"). All of the Financial Statements have
been prepared in accordance with GAAP consistently applied for all relevant
periods (except as indicated therein) and present fairly the financial position
of Gateway as of the dates thereof and


                                     - 22 -

<PAGE>   117



the results of its operations for the periods then ended, subject, in the case
of the Interim Financial Statements, to normal recurring year-end adjustments
and the absence of notes.

                  (b) Gateway has no Claims, debts, obligations, guaranties of
the obligations of others or liabilities (whether absolute or contingent,
liquidated or unliquidated, due or to become due) that are required by GAAP to
be reflected in financial statements or notes thereto, except for (i) Claims,
debts, obligations, guaranties and liabilities to the extent reflected or
reserved against in the Financial Statements, (ii) debts, obligations,
guaranties and liabilities incurred or entered into subsequent to November 30,
1998, in the ordinary course of business and otherwise not in contravention of
this Agreement, and (iii) debts, obligations and liabilities relating to this
Agreement and the Related Agreements and instruments being executed and
delivered in connection herewith and the transactions referred to herein and
therein.

         3.8 ABSENCE OF CERTAIN CHANGES OR EVENTS. Except (i) for matters
disclosed in the Financial Statements or (ii) as contemplated by this Agreement,
Gateway has not, since December 31, 1997:

                  (a) undergone any change in its condition (financial or
otherwise), properties, assets, liabilities, business or operations, except for
changes in the ordinary course of business which have not either individually or
in the aggregate had a negative material effect on Gateway;

                  (b) changed any of its methods of accounting or accounting
practices or classifications of assets or liabilities, or failed to maintain its
books of account in the usual, regular and ordinary manner in accordance with
GAAP unless required by regulation or GAAP;

                  (c) modified the material terms of, or canceled or terminated,
any Material Contract (as defined below);

                  (d) terminated, discharged or received any written notice
regarding the resignation, discharge or termination of any officer;

                  (e) established or adopted any Benefit Plan (as defined
below), or increased the amount of the wages, bonus, salary, commissions, fringe
benefits or other compensation or remuneration payable to, any of its directors,
officers or employees, except such salary increases as do not exceed Gateway's
current wage scale or pre-date normal review time periods for any individual,
and except bonuses consistent with past practices;

                  (f) declared, set aside, made or paid any dividend or other
distribution in respect of its capital stock or purchased or redeemed, directly
or indirectly, any shares of its capital stock, or split up, combined,
reclassified, redeemed, repurchased or otherwise reacquired any of its capital
stock;

                  (g) issued or sold any shares of its capital stock of any
class or any subscriptions, options, warrants, calls or other rights to purchase
directly or indirectly any such


                                     - 23 -

<PAGE>   118



shares or any securities directly or indirectly convertible into or exchangeable
for such shares or made any other change in its capital structure;

                  (h) incurred any direct or contingent liability for borrowed
money or guaranteed the monetary obligations of any other person or entity, or
made any monetary investment in, advance to or loan to any person or entity
other than in the ordinary course of business;

                  (i) mortgaged, pledged or subjected to any material lien,
lease, security interest or other charge or encumbrance any of its properties or
assets, tangible or intangible;

                  (j) made any material change in its practices, operations or
policies with respect to the method for selling goods or services, or other
method for accounting for sales, the conduct of accounts receivable collection
or accounts payable payment activities or the maintenance of inventory levels;

                  (k) merged or consolidated with or into any other entity;

                  (l) implemented or adopted any change in its tax methods,
principles or elections;

                  (m) acquired or disposed of any material assets or properties
or made any capital improvement other than in the ordinary course of business;
or

                  (n) suffered any damage, destruction or loss (whether or not
covered by insurance) which has had or could reasonably be expected to have a
material effect on Gateway.

         3.9 TITLE TO PROPERTY, ABSENCE OF LIENS AND ENCUMBRANCES.

                  (a) Gateway has good title to its owned material assets,
including the tangible assets reflected on the balance sheet included in
Gateway's most recent Financial Statements, other than assets disposed of or
used after the date thereof in the ordinary course of business for fair value
and other than Gateway Intellectual Property, which is addressed by Section 3.16
hereof. The tangible assets owned by Gateway are owned free and clear of all
liens, mortgages, pledges, charges, security interests or encumbrances, except
for Permitted Liens. Gateway owns, leases or licenses, and has adequate rights
to use all material real and personal property and other material assets
necessary to conduct a going concern on a basis consistent with past practices.
The assets of Gateway are in good operating condition and repair (subject to
normal wear and tear). Neither the whole nor any part of Gateway's real property
("Real Property") has been condemned by any public authority, nor, to Gateway's
knowledge, is any such condemnation or taking threatened or contemplated. There
exists free and uninterrupted egress and ingress over a public roadway to all
operating facilities.



                                     - 24 -

<PAGE>   119



                  (b) Gateway validly holds the leasehold created by the leases
(true, complete and correct copies of which have been provided to T-NETIX) as
described in the Gateway Disclosure Letter as the "Leased Property" and such
leases are enforceable by Gateway as the lessee thereunder.

                  (c) Gateway is not a party to any agreement granting any third
party the right or an option to purchase or lease all or any portion of the Real
Property or any personal property of Gateway.

                  (d) There is not pending nor has Gateway received any written
notice of (i) any Claim or proceeding asserting or seeking to establish a title
interest in the Real Property or Leased Property, or any Claim of default
(a"Gateway Title Notice") under any of the leases under which leaseholds have
been created, or (ii) the existence of any facts or proceedings which may result
in the issuance of such a Title Notice; and, there are not any such proceedings
nor is there any Title Notice.

         3.10 FULL AUTHORITY; COMPLIANCE WITH LAWS. To the knowledge of Gateway,
Gateway is in compliance with all material applicable Legal Requirements. Set
forth in the Gateway Disclosure Letter is a list of any and all Permits issued
to Gateway in connection with the ownership, operation and maintenance of its
businesses or assets. Gateway has obtained and maintained all Permits. Each of
the Permits is in full force and effect, and Gateway is substantially in
compliance with all the provisions of such Permits.

         3.11 BENEFIT PLANS.

                  (a) Gateway does not maintain, sponsor, participate in or
contribute to, or is required to contribute to, directly or indirectly, or has
any obligation under:

                           (i) Any employee benefit plan, employee pension
         benefit plan, employee welfare benefit plan (including any medical,
         dental, disability, accident or sickness, salary continuation or life
         insurance plan or arrangement), or multiemployer plan, all as defined
         in ERISA, regardless of whether or not a plan is exempt from some or
         all of the otherwise applicable requirements of ERISA; or

                           (ii) Except as disclosed on the Financial Statements,
         any bonus, commission, deferred compensation, incentive compensation,
         restricted stock, stock purchase, stock option, stock appreciation
         right, debenture, supplemental pension, profit sharing, royalty pool,
         vacation, sick leave, severance or termination pay policies,
         supplemental unemployment benefits plan, loan guarantee, relocation
         assistance, employee loan or other extensions of credit, or other
         similar plan, program, agreement, policy, commitment, arrangement or
         benefit currently in effect under which current or former employees or
         their dependents, beneficiaries, representatives or estates are
         currently or will in the future be entitled to benefits.



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<PAGE>   120



                  (b) With respect to each plan, program, agreement, policy,
commitment, arrangement or benefit described in the Gateway Disclosure Letter (a
"Benefit Plan"), Gateway has furnished to T-NETIX true, correct and complete
copies of such Benefit Plan, including amendments, if applicable, summary plan
descriptions, if applicable, the Internal Revenue Service determination letter,
if applicable, and the two most recent Forms 5500, 5500-C or 5500-R, as
applicable, and has made available to T-NETIX the most recent actuarial reports
of or regarding such Benefit Plan. As to each Benefit Plan not reduced to
writing, Gateway has provided to T-NETIX a description of all material elements
of such Benefit Plan.

                  (c)

                           (i) Each Benefit Plan has been operated and
         administered substantially in accordance with its terms and applicable
         laws, including but not limited to ERISA and the Code. Each Benefit
         Plan that is intended to be qualified under the Code either has
         received from the Internal Revenue Service, or timely applied for, a
         determination letter on such Benefit Plan's qualified status.

                           (ii) To the knowledge of Gateway, neither Gateway nor
         any other party in interest (within the meaning of ERISA) has engaged
         in any non-exempt prohibited transaction with respect to any Benefit
         Plan under ERISA or the Code, and there is no pending assertion of the
         occurrence of any such transaction.

                           (iii) All contributions required under applicable law
         or the terms of any Benefit Plan, collective bargaining agreement or
         other agreement relating to a Benefit Plan to be paid by Gateway for
         all periods prior to the Closing Date have been or will have been
         completely and timely made to each Benefit Plan when due, and Gateway
         has established adequate reserves on its books to meet liabilities for
         contributions accrued but that have not been made because they are not
         yet due and payable.

                           (iv) There is no current or pending investigation or
         audit by the Internal Revenue Service, the Department of Labor or any
         other governmental entity of any Benefit Plan, nor has Gateway received
         notification from any such governmental entity of such a pending audit
         or investigation, and there are no actions, suits or claims pending
         (other than routine claims for benefits) or threatened, with respect to
         any Benefit Plan or against the assets of any such Benefit Plan.

                           (v) No Benefit Plan is or ever has been a Pension
         Plan, or is or ever has been a Multiemployer Plan. Gateway has not
         incurred any liability to the PBGC with respect to any Pension Plan,
         except for required premium payments, which payments have been made
         when due. No accumulated funding deficiency (within the meaning of
         Section 312 of the Code or Section 302 of ERISA) or reportable event
         (as defined in Section 4043 of ERISA) has occurred with respect to any
         Pension Plan. No event has occurred in connection with any Pension Plan
         which could subject Gateway or any Pension Plan, or T-NETIX, its
         Affiliates or any of their respective benefit plans, to liability under
         Section


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<PAGE>   121



         4062, 4063 or 4064 of ERISA, and, no event has occurred which might
         give rise to any liability of Gateway or any Pension Plan, or T-NETIX,
         its Affiliates or any of their respective benefit plans, to the PBGC
         under Title IV of ERISA or which could reasonably be anticipated to
         result in any Claims being made against Gateway or any Pension Plan, or
         T-NETIX, its Affiliates or any of their respective benefit plans, by
         the PBGC. Gateway has not incurred and, as a result of the transactions
         contemplated by this Agreement, will not incur any withdrawal liability
         (including any contingent or secondary withdrawal liability) within the
         meaning of Section 4201 and 4204 of ERISA to any Multiemployer Plan.
         Upon a complete withdrawal or a partial withdrawal (as those terms are
         defined in Section 4203 and 4205, respectively, of ERISA) from a
         Multiemployer Plan occurring on or before the close of the most recent
         fiscal year of each such Multiemployer Plan ended prior to the Closing
         Date, Gateway would not have been subject to withdrawal liability under
         Title IV, Subtitle E, Part 1 of ERISA and, there has been no change in
         the financial condition of any Multiemployer Plan that would result in
         the imposition of such liability due to such complete or partial
         withdrawal on or before the Closing Date.

                           (vi) Gateway has substantially complied with all
         notice and continuation coverage requirements applicable to group
         health plans under COBRA, with respect to all medical and health
         benefits provided by Gateway that are subject to COBRA.

                           (vii) No Benefit Plan amendments have been adopted
         nor will any such amendments be adopted prior to the Closing Date
         except as may be necessary for compliance purposes with the Code or
         ERISA and there is no arrangement, commitment or understanding to
         create any additional plan which would constitute a Benefit Plan or
         increase the rate of benefit accrual or contribution requirement under
         any of the Benefit Plans or modify, change or terminate any existing
         Benefit Plan.

                           (viii) Gateway is not a member of a "controlled
         group" of organizations (as defined in Sections 414(b), (c), (m) or (o)
         of the Code) which sponsors or maintains any employee benefit plan
         within the meaning of Section 3(3) of ERISA which under Title IV of
         ERISA or any section of the Code or ERISA would subject T-NETIX or
         Gateway or any of their respective employee benefit plans or the
         fiduciaries thereof or their respective assets to any taxes,
         encumbrances, penalties or other liabilities.

         3.12 CLAIMS. There are no Claims against, or to the knowledge of
Gateway threatened against, Gateway or its properties, at law or in equity or
before any court, governmental department, commission, board, agency, authority
or instrumentality, domestic or foreign. Gateway is not subject to any judgment,
stipulation, order or decree arising from any action, suit, proceeding or
investigation which could be reasonably expected to have, individually or in the
aggregate, a material effect on Gateway before or after the Closing Date. No
action, suit, proceeding or governmental investigation is pending or threatened
against Gateway which seeks to question, delay or prevent the consummation of
the transactions contemplated hereby.

         


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         3.13 TAXES.

                  (a) Except for the tax years set forth in the Gateway
Disclosure Letter for which valid extensions of the time for filing Tax Returns
have been filed, Gateway has filed or will file or cause to be filed, within the
applicable period prescribed by law, all federal, state, local, foreign or other
Tax Returns required by such law to be filed by Gateway for all taxable periods
ending on or prior to the Closing Date.

                  (b) Gateway has paid, within the time and in the manner
prescribed by law, all Taxes shown as due on all such Tax Returns and, with
respect to all Tax Returns which Gateway has not yet filed, but will file prior
to the Closing Date, shall pay, within the time and in the manner prescribed by
law, all Taxes shown as due on such Tax Returns.

                  (c) No Claim or assertion has been made against Gateway by any
Tax authority in any jurisdiction in which no Tax Return has been filed by
Gateway that Gateway is or may be subject to taxation of any sort in such
jurisdiction or otherwise is required to file a Tax Return in such jurisdiction.

                  (d) Except for Permitted Liens, there are no Tax liens or
other security interests or encumbrances of any type resulting from Tax
liabilities on any of the assets of Gateway.

                  (e) There is no dispute, Claim or any other controversy
concerning any Tax liability of Gateway either (i) raised or asserted by any Tax
authority in writing; or (ii) whether or not formally asserted or claimed.

                  (f) None of the income Tax Returns for any open tax year that
include Gateway has been audited by any taxing authority. Gateway has made
available to T-NETIX a correct and complete copy of each federal income Tax
Return, examination report, statement of deficiency, or any other administrative
or judicial assertion, assessment or determination of federal income Tax
liability with respect to Gateway.

                  (g) Gateway has employed a permissible method of Tax
accounting, validly elected for each taxable period ending on or prior to the
Closing Date. Gateway has not changed, or requested to be permitted to change,
any method of Tax accounting.

                  (h) Gateway has not waived any statute of limitations with
respect to any Taxes or agreed to any extension of time with respect to a Tax
assessment or deficiency, except for such waivers or extensions which, by their
terms, have elapsed as of the date of this Agreement, nor are any requests for
such waivers or extensions pending.

                  (i) Gateway (i) has not filed a consent under Section 341(f)
of the Code concerning collapsible corporations, (ii) has not made any payments,
is not obligated to make any payments, and is not a party to any agreement that
will render it (or the payor of compensation under the agreement) subject to the
provision of section 280G of the Code regarding payments as


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a result of a change in control, (iii) has not been a United States real
property holding company within the meaning of section 897(c)(2) of the Code and
(iv) is not a party to any Tax allocation or Tax sharing agreement.

                  (j) The unpaid Taxes of Gateway, including Taxes attributable
to all periods ending on or prior to the Closing Date which are not yet due and
payable, do not exceed the reserve on the Financial Statements for tax
liability.

         3.14 CONTRACTS. Except as set forth in this Agreement or in the Gateway
Disclosure Letter (the agreements listed therein being referred to as the
"Material Contracts"), Gateway is not a party to, bound by or obligated under
any:

                  (a) mortgage, indenture, note or installment obligation or
other instrument or contract for or relating to any borrowing of an amount in
excess of $250,000 by Gateway;

                  (b) guaranty by Gateway of any obligation in excess of
$250,000 (excluding any endorsement made in the ordinary course of business for
collection);

                  (c) license agreement involving the payment or receipt by
Gateway of $250,000 or more during any 12-month period during the term thereof;

                  (d) lease of real or personal property under which Gateway is
a lessor or lessee involving annual rentals in excess of $250,000;

                  (e) agreement for the purchase by Gateway of equipment
involving outstanding commitments in excess of $250,000;

                  (f) agreement purporting to limit the right of Gateway to
compete in any line of business, with any person or other entity or in any
geographic area;

                  (g) agreement for the purchase or sale of raw materials,
products or goods or the provision of services involving payments in excess of
$250,000 at prices that vary from the prices therefor generally prevailing in
customary, arms-length transactions or that may not be terminated by Gateway on
not more than thirty (30) days' notice without penalty;

                  (h) contract with any governmental or quasi-governmental
authority involving payments in excess of $250,000;

                  (i) bond, deposit, financial assurance requirement or
insurance coverage in excess of $250,000 individually required to be submitted
to customers of Gateway, under any sale, lease or service arrangement or to any
governmental authority under any Permit or Legal Requirement;



                                     - 29 -

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                  (j) agreement or instrument relating to the acquisition by
Gateway of any entity or all or substantially all of the assets of any person or
entity;

                  (k) other agreement, contract or obligation of Gateway calling
for or involving the payment, potential payment or accrued obligation by or to
Gateway of an amount in excess of $250,000 from the date hereof through the
earliest date such agreement, contract or obligation can be terminated
unilaterally without material penalty by Gateway;

                  (l) agreement or commitment relating to the borrowing of money
or the guaranty or indemnity (direct or indirect) in respect of or the granting
of security for any obligation for the borrowing of money, by Gateway or any
other person or entity, in excess of $250,000, including, without limitation,
guarantees, accommodation collateral, letters of credit, mortgages, deeds of
trust, indentures, loan agreements and credit agreements;

                  (m) agreement or commitment relating to clean-up or
remediation involving Hazardous Materials (as hereinafter defined);

                  (n) agreement that creates an encumbrance or any restriction
on the ability of Gateway to (i) pay dividends or make similar distributions;
(ii) make loans or advances to any person or entity, or (iii) sell, lease or
transfer any of its properties or assets, except (in each case) for such
restrictions or encumbrances existing under or by reason of (1) applicable Legal
Requirements, or (2) customary non-assignment provisions in leases and other
contracts entered into in the ordinary course of business;

                  (o) indemnification obligations in favor of any person or
entity, and any escrow agreements related to any indemnification obligation;

                  (p) confidentiality, secrecy, screening, development or
settlement agreement pertaining to any Intellectual Property; or

                  (q) contract with any customer of Gateway; or

                  (r) agreement, arrangement or commitment of any character
(contingent or otherwise) pursuant to which any person or entity is or may be
entitled to receive any payment based on the revenues or earnings, or calculated
in accordance therewith, of Gateway other than payments to employees or
contractors of commissions based on sales.

All of the Material Contracts are legal, valid, binding and in full force and
effect, no default exists thereunder on the part of Gateway, and the
consummation of the transactions contemplated by this Agreement will not cause
any default or condition in respect of any such Material Contracts, the effect
of which is to cause, permit, create or perfect the right in any party (a) to
repudiate or disavow its obligations to Gateway thereunder, (b) to require or
have the right to require Gateway to perform its obligations thereunder
(including obligations to pay indebtedness) prior to such time on which, or on
terms and conditions otherwise different from those that, are provided


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therein or (c) to recover from Gateway any material damages or fines. To the
knowledge of Gateway, no party (including Gateway) to any such Material Contract
is in default thereunder. True, correct and complete copies of all the Material
Contracts have been delivered to T-NETIX.

         3.15 ENVIRONMENTAL QUALITY.

                  (a) Neither Gateway nor, to the knowledge of Gateway any
previous owner, tenant, occupant, user or operator of any real property now or
ever owned or leased by Gateway (the "Property") has released or disposed of any
Hazardous Materials on, under, in or about the site of the Property, except when
substantially in compliance with applicable Environmental Laws.

                  (b) To the knowledge of Gateway, the Property substantially
complies with all applicable Environmental Laws. Without limiting the generality
of the foregoing, Gateway is not currently liable nor, to its knowledge,
potentially liable for any response costs or natural resource damages under
Sections 107(a) or 113(f) of CERCLA, or under any other so-called "superfund" or
"superlien" law or similar Legal Requirement, at or with respect to the Property
and, to the knowledge of Gateway, no circumstances exist, which with notice or
lapse of time or both could result in such liability.

                  (c) To the knowledge of Gateway, the conduct of Gateway's
Business substantially complies with all applicable Environmental Laws.

                  (d) Gateway has not sent any Hazardous Material to a site
that, pursuant to any applicable Environmental Laws, (i) has been placed on the
"National Priorities List" of hazardous waste sites or any similar state list,
(ii) is otherwise designated or identified as a potential site for remediation,
cleanup, closure or other environmental remedial activity, or (iii) is subject
to a Claim, an administrative order or other request to take "removal" or
"remedial" action, as defined in any applicable Environmental Laws, or to make
payment for the costs of cleaning up the site.

                  (e) Gateway (i) is not involved in any suit or proceeding with
respect to a release or threatened release of any Hazardous Material or a
violation or alleged violation of any applicable Environmental Laws, nor has
Gateway received any notice of any Claims from any person or entity relating to
property damage or to personal injuries from exposure to any Hazardous Material,
nor has Gateway received any notice or request for information from any
governmental agency or authority or other third party with respect to any of the
foregoing, and (ii) has not failed to timely file any report required to be
filed, failed to acquire all necessary certificates, approvals and permits or
failed to generate and maintain all required data, documentation and records
under all applicable Environmental Laws.

                  (f) There are currently no underground storage tanks in or
under the Property, and no underground storage tank was removed from the
Property during the period that Gateway maintained an interest in such property.



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                  (g) To its knowledge, Gateway has provided T-NETIX with all
information in its possession regarding the environmental condition of the
Property.

         3.16 INTELLECTUAL PROPERTY. Gateway either owns or has the right to use
by license, sublicense, or other written agreement, all of the inventions,
improvements, domestic and foreign patents and applications therefor, customer
lists, copyrights, copyright registrations and applications therefor,
trademarks, trade names, service marks, trade dress, logos, rights in computer
software, and all rights granted or retained in licenses under any of the
foregoing which are used in connection with the conduct of Gateway's business as
presently conducted (collectively the "Gateway Intellectual Property"). None of
the Gateway Intellectual Property used in connection with the conduct of
Gateway's business is, or has been in the past five years, involved in, or the
subject of, any pending or, to the knowledge of Gateway, threatened
infringement, interference, opposition or similar action, suit or proceeding
that would significantly affect the use or practice of its Gateway Intellectual
Property rights. None of the Gateway Intellectual Property has infringed, or is
now infringing on, or otherwise violating, the rights of any third party nor
does the use of such Gateway Intellectual Property by Gateway infringe on, or
otherwise violate, the rights of others. Since their organization, Gateway has
taken reasonable measures to protect the secrecy, confidentiality and value of
all intellectual property and inventions. Any former or current employees of
Gateway who, alone or with others, developed, invented, discovered, derived,
programmed, or designed any significant aspect of the Gateway Intellectual
Property have signed confidentiality and work-for-hire agreements assigning the
rights to such Gateway Intellectual Property to Gateway, relinquishing all
rights thereto and agreeing to maintain the confidentiality thereof. Gateway is
not aware of any person who is in violation of any such agreement. The license
fees, royalties and other amounts payable by Gateway in connection with the use
of the Gateway Intellectual Property, together with the terms and conditions on
which, and periods for which such amounts are payable, are set forth in the
Gateway Disclosure Letter.

         3.17 RELATED PARTY TRANSACTIONS. Set forth in the Gateway Disclosure
Letter is a list of all transactions in an amount greater than $10,000
(including, without limitation, employment contracts, debts, loans, advances, or
other obligations, guarantees, indemnities, accounts and notes payable or
receivable and service agreements) between Gateway and any current officer,
director, employee, Gateway Shareholder or Affiliate of Gateway or any relative
of any such person (collectively, "Related Parties") which (a) were entered into
and/or consummated since January 1, 1998; (b) are or will be effective as of the
date hereof or at Closing; (c) constitute present or future liabilities or
obligations of Gateway to any Related Party; or (d) constitute present or future
liabilities of any Related Party to Gateway; provided that advances which have
been repaid need not be set forth, and the names of the Related Parties need not
be set forth.

         3.18 LABOR MATTERS. (a) Gateway has not entered into or is a party to
any collective bargaining agreement, memorandum of understanding or other
written document binding on Gateway respecting terms and conditions of
employment with respect to an identified group of employees with any labor union
that would cover any Gateway employees and (b) the employees of Gateway are not
subject to any collective bargaining agreement, memorandum of


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understanding or other written document binding on Gateway respecting terms and
conditions of employment with respect to an identified group of employees, nor
are any such employees, in their capacities as employees, represented by any
labor union. As to the collective bargaining agreements disclosed in the Gateway
Disclosure Letter, Gateway is not in default thereunder. There are no Claims,
controversies, labor disturbances, investigations, proceedings or complaints
pending or threatened by any governmental agency or any of Gateway's employees
or any party or parties representing any of such employees against Gateway
before any court, arbitrator or other tribunal. To the best of Gateway's
knowledge, there are no organizational efforts presently being made or
threatened by or on behalf of any labor union with respect to the employees of
Gateway nor has there been in the last five (5) years. Gateway has not
experienced a work stoppage, strike, lock-out or other labor disturbance within
the past five (5) years, and there is no work stoppage, strike, lock-out or
other labor disturbance presently occurring, or threatened. Gateway has
substantially complied with all Legal Requirements relating to its employees,
the employment of labor, and the safety and health of employees, including,
without limitation, all Legal Requirements relating to occupational health and
safety, discrimination, unemployment, wages, hours, the Family and Medical Leave
Act, collective bargaining, and the collection and payment of withholding taxes
and similar taxes in respect of the business of Gateway. There are no unfair
labor practice charges, charges of discrimination, or other complaints pending
against Gateway involving employees now or previously employed by Gateway.

         3.19 CUSTOMERS AND VENDORS. The Gateway Disclosure Letter contains true
and correct lists of the 20 largest customers and the 10 largest vendors of
Gateway during the 12- month period ended December 31, 1997, and the eleven (11)
month period ended November 30, 1998, with the amount of sales made to each such
customer or the amount of purchases from each such vendor, as the case may be,
during such period as reasonably ascertained from readily available information,
such amounts being estimated in good faith as being within five percent (5%) of
the actual sales made to or by such customer or the amount paid to such vendor,
as the case may be. Gateway does not have any information indicating that any of
these customers or vendors intends to cease doing business with Gateway or
significantly alter the amount of the business that it is presently doing with
Gateway.

         3.20 OTHER DISCLOSURES. In addition to the other disclosures required
hereby, the following documents and information pertaining to Gateway have been
made available to T-NETIX:

                  (a) true, correct and complete copies of each policy of
insurance maintained by Gateway, together with information on premiums,
coverage, insurers, expiration dates and deductibles;

                  (b) the location and name of each bank or other financial
institution in which Gateway has an account or line of credit, and the identity
of each such account or line of credit, and each bank in which Gateway has a
safe deposit box, together with the names of all persons authorized to draw upon
or have access thereto;



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                  (c) The Gateway Disclosure Letter lists each corporate or
trade name under which Gateway or its predecessors, if any, has conducted
business and the state and county in which any Real Property or personal
property of Gateway is located.

                  (d) The Gateway Disclosure Letter lists each power-of-attorney
given by or on behalf of Gateway.

         3.21 PARACHUTE PAYMENTS. Any bonuses or other compensation or amounts
paid or payable by Gateway, including amounts payable as a result of the
transaction contemplated by this Agreement, have not resulted in and will not
result in payments to "Disqualified Individuals" (as defined in Section 280G(c)
of the Code) of Gateway which, individually or in the aggregate, will constitute
"excess parachute payments" (as defined in Section 280G(b) of the Code)
resulting in the imposition of the excise tax under Section 4999 of the Code or
the disallowance of deductions under Section 280G of the Code.

         3.22 BROKERS AND FINDERS. No person nor entity is entitled to any
brokerage commission, finder's fee or like payment in connection with the
transactions contemplated in this Agreement.

         3.23 GATEWAY'S KNOWLEDGE. No officer nor director of Gateway has actual
knowledge, as of the date hereof, of any state of facts which will have a
negative material effect on Gateway, except for such matters as have been
disclosed to T-NETIX or its representatives and are contained in the Gateway
Disclosure Letter.

         3.24 YEAR 2000 COMPLIANCE.

                  (a) All of the computer hardware, software and information
systems, including without limitation the financial, operational and
manufacturing systems, used by Gateway are Year 2000 Compliant.

                  (b) The hardware and software sold or licensed by Gateway to
customers are Year 2000 Compliant, and the cost to Gateway of replacing products
which are not Year 2000 Compliant will not exceed $500,000 after the date
hereof.

         3.25 RIGHT OF FIRST REFUSAL. Ameritech Corp has fully relinquished any
right of first refusal, first option or other contractual right it had to
acquire Gateway, and such relinquishment is binding on Ameritech Corp.

         3.26 TERMINATION OF EXISTING AGREEMENT. The TTDP Royalty Owners have
agreed to terminate the TTDP Royalty Agreement on the Closing Date, subject to
receipt of the consideration stated in Section 1.2(c) hereof.

         3.27 ACCURACY. The representations and warranties made by Gateway to
T-NETIX set forth in this Agreement, the Gateway Disclosure Letter (including
any Updated Gateway


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Disclosure Letter (as defined below)) delivered, or to be delivered, to T-NETIX
prior to Closing, and the written agreements, instruments and documents
delivered and to be delivered pursuant to or in connection with this Agreement
and to which T-NETIX has been afforded access, do not include an untrue
statement of material fact or fail to state any material fact necessary to make
them, when taken together and in light of the circumstances in which they were
or are made, not misleading in any material respect.


                                    ARTICLE 4
              ADDITIONAL REPRESENTATIONS AND WARRANTIES OF GATEWAY,
            GATEWAY SHAREHOLDER SIGNATORIES AND GATEWAY SHAREHOLDERS

         Each of the Gateway Shareholder Signatories, as to himself, and Gateway
as to all Gateway Shareholders, represents and warrants to T-NETIX that the
following statements are true and accurate as of the date hereof:

         4.1 OWNERSHIP OF SHARES. Each of the shares of Gateway Stock is now,
and at the Closing will be, owned by each Gateway Shareholder free and clear of
any lien, pledge, charge, adverse claim, security interest, encumbrance
(including any imposed by law in any jurisdiction), title retention agreement,
option or right to purchase of any kind.

         4.2 INVESTMENT REPRESENTATIONS. Each Gateway Shareholder is either an
"accredited investor" as defined under Rule 501 of Regulation D under the
Securities Act of 1933, as amended (the "Securities Act"), or, alone or with his
or her representative(s) has such knowledge and experience in financial and
business matters that he or she is capable of evaluating the merits and risks of
an investment in T-NETIX, and in any case is acquiring the T-NETIX Stock solely
for the purpose of investment and not with a view to, or for sale in connection
with, any distribution thereof. Each Gateway Shareholder Signatory acknowledges
that, except as provided in Section 1.6 hereof, the T-NETIX Stock will not be
registered under the Securities Act or any state securities laws, and that such
T-NETIX Stock may not be transferred or sold except pursuant to the registration
provisions of the Securities Act or pursuant to an applicable exemption
therefrom and pursuant to state securities laws and regulations, as applicable.
Each Gateway Shareholder Signatory acknowledges that the certificate or
certificates evidencing the T-NETIX Stock will bear a legend or legends
referring to the restrictions on the transferability thereof and any other
legends required by applicable law.


                                    ARTICLE 5
                              COVENANTS OF GATEWAY

         5.1 CONDUCT OF BUSINESS. Gateway agrees that, between the date of this
Agreement and the Closing Date, except as contemplated by this Agreement or
referred to in the Gateway Disclosure Letter, and except as may be necessary to
carry out the transactions contemplated by


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this Agreement, or as requested by T-NETIX, Gateway, without T-NETIX's written
consent (which consent shall not be unreasonably withheld), will not:

                  (a) amend its Articles of Incorporation or Bylaws;

                  (b) make any change in its practices, operations or policies
with respect to the selling goods or services, collecting accounts receivable
and/or paying accounts payable;

                  (c) conduct its business in a manner that departs from the
manner in which such business was being conducted prior to the date of this
Agreement;

                  (d) increase the rate or change the form of compensation
payable to any director or officer of Gateway or increase any employee benefits,
except for normal increases consistent with past practices;

                  (e) purchase or dispose of any properties or other assets,
except in the ordinary course of business;

                  (f) declare, set aside, pay or make any dividend or other
distribution in respect of any of Gateway's outstanding shares of capital stock;

                  (g) issue or sell any shares of Gateway's capital stock
(whether or not from the treasury) or any other securities; grant any options,
convertibility rights, rights to subscribe for shares of capital stock or
securities convertible into or exchangeable for shares of capital stock,
warrants, calls or other agreements relating to Gateway's capital stock; split
up, combine, reclassify, redeem, repurchase or otherwise reacquire any of
Gateway's capital stock, or otherwise change its capitalization;

                  (h) except as required by regulation or generally accepted
accounting principles, maintain its books of account other than in the usual,
regular and ordinary manner on a basis consistent with prior periods, make any
change in any of its books, accounting methods or practices, or reclassify any
assets or liabilities;

                  (i) cancel, terminate, renew or amend any Material Contract or
enter into any contract, agreement, lease, license or commitment, in each case
outside the ordinary course of business;

                  (j) invest in certificates of deposit in any one bank if such
investments in the aggregate exceed $100,000 at any time;

                  (k) incur any direct or contingent liability for borrowed
money or guarantee the monetary obligations of any other person or entity, or
make any monetary investment in, advance to or loan to any person or entity
other than in the ordinary course of business;



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                  (l) fail to make maintenance expenditures and maintain
inventories in the amounts and at the times required to operate its business in
the ordinary course consistent with past practice;

                  (m) implement or adopt any change in its tax methods,
principles or elections;

                  (n) fail to pay accounts payable or collect accounts
receivable in accordance with past practices;

                  (o) fail to use best efforts to ensure the retention of
Gateway's key employees;

                  (p) enter into any transaction outside the ordinary course of
business; or

                  (q) agree or commit to do any of the foregoing.

         5.2 CONFIDENTIALITY. Gateway shall hold in strict confidence, and cause
its stockholders, Affiliates, directors, officers, employees, agents, attorneys,
accountants, financing sources and representatives and those of its Affiliates
(collectively, "Gateway Associates") to hold in strict confidence, all documents
and information obtained with respect to T-NETIX ("T-NETIX Confidential
Information"). Gateway shall not permit any T-NETIX Confidential Information to
be utilized or to be disclosed or conveyed to any other person or entity other
than Gateway Associates in furtherance of this Agreement. Without limiting the
generality of the foregoing, and except as required by law or as contemplated by
Section 7.3, (i) Gateway shall not disclose to any person or entity, and shall
not permit any Gateway Associates to disclose to any person or entity, any of
the terms or provisions hereof and (ii) except in the ordinary course of
business, Gateway shall not contact any customers or employees of T-NETIX, and
Gateway shall not permit any Gateway Associates to contact any customers or
employees of T-NETIX, without the prior consent of an officer of T-NETIX. This
Section 5.2 shall terminate if and when the Closing occurs in accordance with
Article 1 of this Agreement, or within two years of the date of execution of
this Agreement, whichever occurs first. This Section 5.2 shall not apply to (y)
information about T-NETIX which is or has become part of the public knowledge or
literature, or is or has become generally available to the public, in either
case other than as a result of a disclosure by or through Gateway or the Gateway
Associates; or (z) information about T-NETIX which was made available to Gateway
prior to disclosure by T-NETIX to Gateway, on a nonconfidential basis, by a
person or entity that is not subject to this Agreement and that is not known to
be obligated to keep such information confidential.

         5.3 ACCESS. Gateway agrees that, between the date of this Agreement and
the Closing Date, Gateway shall, after receiving reasonable advance notice from
T-NETIX, give T-NETIX and T-NETIX Associates reasonable access (during normal
business hours) to all information in Gateway's possession regarding the
environmental condition of its Real Property, its intellectual property and to
the books, records, contracts and officers of Gateway for the purpose of
enabling such parties to further investigate and inspect the business,
operations and financial and legal affairs of Gateway.


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         5.4 NO SALE OR TRANSFER OF SHARES. The Gateway Shareholder Signatories
agree that, between the date of this Agreement and the Closing Date, the Gateway
Shareholder Signatories shall not, directly or indirectly, sell or otherwise
transfer, or agree or commit to transfer any of the shares of Gateway Stock or
any interest in or right relating to such shares.

         5.5 NO SHOPPING.

                  (a) Gateway, its officers and directors, and the Gateway
Shareholder Signatories will not, and Gateway shall direct and use its best
efforts to cause its employees, agents and representatives to not, during the
period beginning on the date hereof and continuing through Closing, except to
the extent that the board of directors concludes in good faith that it is
legally required for the discharge by the board of directors of its fiduciary
duties, (i) sell or arrange for the sale of any Gateway capital stock; or (ii)
negotiate, solicit or encourage or authorize any person to solicit from any
third party any proposals relating to a "Gateway Change of Control," which shall
mean the merger or consolidation of Gateway, disposition of the business or all
or substantially all the assets of Gateway or the sale of a total of fifty
percent (50%) or more of the capital stock of Gateway; or (iii) make any
information concerning Gateway available to any person for the purpose of
affecting or causing a Gateway Change of Control. This paragraph (a) of Section
5.5 shall not apply to any merger in which Gateway is the surviving corporation
and the current shareholders of Gateway are the holders of at least two-thirds
of the voting power and economic benefits of Gateway immediately following the
merger.

                  (b) In the event Gateway receives any solicitation, proposal
or offer from any person relating to a Gateway Change of Control, Gateway shall
promptly give written notice to T-NETIX of such event. Notice shall not be
deemed promptly given if it is given more than two business days after an
officer or the chairman of the board of Gateway has received or been notified
of, orally or in writing, any such solicitation, proposal or offer.

         5.6 FILINGS AND CONSENTS. Gateway shall use commercially reasonable
efforts to do each of the following:

                  (a) make or give each filing or notice required to be made or
given pursuant to any applicable Legal Requirement, Material Contract or Permit
by Gateway in connection with the execution and delivery of this Agreement or in
connection with the consummation or performance of any of the transactions
contemplated hereby; and

                  (b) obtain each consent required to be obtained pursuant to
any applicable Legal Requirement, Permit or Material Contract by Gateway or the
Gateway Shareholder Signatories in connection with the execution and delivery of
any of this Agreement or in connection with the consummation or performance of
the transactions contemplated hereby.

         5.7 UPDATED GATEWAY DISCLOSURE LETTER. Between the date of this
Agreement and the Closing Date, if Gateway becomes aware of any fact or
condition that causes any of the


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representations and warranties of Gateway and/or the Gateway Shareholders in
this Agreement to become untrue, misleading, or inaccurate in any material
respect, such party will immediately deliver to T-NETIX an updated Gateway
Disclosure Letter ("Updated Gateway Disclosure Letter") setting forth the facts
or conditions that cause such representation, warranty, or Gateway Disclosure
Letter to become untrue, misleading, or inaccurate.

         5.8 MAXIMUM INDEBTEDNESS. After the termination of the agreement
referred to in Section 3.26 hereof, Gateway's Indebtedness at Closing shall not
exceed $10,500,000 plus any additions to inventory and any additions to prepaid
commissions from the date hereof to the Closing Date. For purposes of this
Agreement "Indebtedness" shall mean all long-term, short-term or "line of
credit" indebtedness to banks, leasing companies and other third parties,
capital lease obligations, accounts receivable financing and overdrafts,
including the current portion of such indebtedness, accrued interest thereon,
and the amount of any fees, early retirement or pre-payment fees and penalties,
and any other amounts due upon the pre-payment thereof.

         5.9 POOLING AND TAX-FREE REORGANIZATION TREATMENT. Gateway shall not
intentionally take, fail to take or cause to be taken or not be taken, any
action within its control, whether before or after the Closing, which would
disqualify the Merger as a "pooling of interests" for accounting purposes or as
a "reorganization" within the meaning of Section 368(a) of the Code.

         5.10 PROXY MATERIALS. Gateway shall cooperate with T-NETIX in preparing
the joint proxy statement/offering memorandum referred to in Section 6.8 hereof
and shall use commercially reasonable efforts to timely provide all such
information to T-NETIX as T-NETIX deems necessary or advisable for preparation
and distribution of the same. The information provided shall not contain any
material misstatement or omission.


                                    ARTICLE 6
                              COVENANTS OF T-NETIX

         6.1 CONDUCT OF BUSINESS. T-NETIX agrees that, between the date of this
Agreement and the Closing Date, except as contemplated by this Agreement or
referred to in the T-NETIX Disclosure Letter, and except as may be necessary to
carry out the transactions contemplated by this Agreement, T-NETIX without
Gateway's written consent (which consent shall not be unreasonably withheld),
will not:

                  (a) amend its Articles of Incorporation or Bylaws;

                  (b) make any change in its practices, operations or policies
with respect to the selling goods or services, collecting accounts receivable
and/or paying accounts payable;

                  (c) conduct its business in a manner that departs from the
manner in which such business was being conducted prior to the date of this
Agreement;


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<PAGE>   134




                  (d) increase the rate or change the form of compensation
payable to any director or officer of T-NETIX or increase any employee benefits,
except for normal increases consistent with past practices;

                  (e) purchase or dispose of any properties or other assets,
except in the ordinary course of business;

                  (f) declare, set aside, pay or make any dividend or other
distribution in respect of any of T-NETIX's outstanding shares of capital stock;

                  (g) issue or sell any shares of T-NETIX's capital stock
(whether or not from the treasury) or any other securities; grant any options,
convertibility rights, rights to subscribe for shares of capital stock or
securities convertible into or exchangeable for shares of capital stock,
warrants, calls or other agreements relating to T-NETIX's capital stock; split
up, combine, reclassify, redeem, repurchase or otherwise reacquire any of
T-NETIX's capital stock, or otherwise change its capitalization;

                  (h) except as required by regulation or generally accepted
accounting principles, maintain its books of account other than in the usual,
regular and ordinary manner on a basis consistent with prior periods, make any
change in any of its books, accounting methods or practices, or reclassify any
assets or liabilities;

                  (i) cancel, terminate, renew or amend any Material Contract or
enter into any contract, agreement, lease, license or commitment, in each case
outside the ordinary course of business;

                  (j) invest in certificates of deposit in any one bank if such
investments in the aggregate exceed $100,000 at any time;

                  (k) incur any direct or contingent liability for borrowed
money or guarantee the monetary obligations of any other person or entity, or
make any monetary investment in, advance to or loan to any person or entity
other than in the ordinary course of business;

                  (l) fail to make maintenance expenditures and maintain
inventories in the amounts and at the times required to operate its business in
the ordinary course consistent with past practice;

                  (m) implement or adopt any change in its tax methods,
principles or elections;

                  (n) fail to pay accounts payable or collect accounts
receivable in accordance with past practices;

                  (o) fail to use best efforts to ensure the retention of
T-NETIX's key employees;


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<PAGE>   135


                  (p) enter into any transaction outside the ordinary course of
business; or

                  (q) agree or commit to do any of the foregoing.

         6.2 CONFIDENTIALITY. T-NETIX shall hold in strict confidence, and cause
its stockholders, affiliates, directors, officers, employees, agents, attorneys,
accountants, financing sources and representatives and those of its Affiliates
(collectively, "T-NETIX Associates") to hold in strict confidence, all documents
and information obtained with respect to Gateway ("Gateway Confidential
Information," and collectively with the T-NETIX Confidential Information, the
"Confidential Information"). T-NETIX shall not permit any Gateway Confidential
Information to be utilized or to be disclosed or conveyed to any other person or
entity other than T-NETIX Associates in furtherance of this Agreement. Without
limiting the generality of the foregoing, and except as required by law or as
contemplated by Section 7.3, (i) T-NETIX shall not disclose to any person or
entity, and shall not permit any of its T-NETIX Associates to disclose to any
person or entity, any of the terms or provisions hereof and (ii) except in the
ordinary course of business, T-NETIX shall not contact any customers or
employees of Gateway, and T-NETIX shall not permit any T-NETIX Associates to
contact any customers or employees of Gateway, without the prior consent of an
officer of Gateway. This Section 6.2 shall terminate if and when the Closing
occurs in accordance with Article 1 of this Agreement, or within two years of
the date of execution of this Agreement, whichever occurs first. This Section
6.2 shall not apply to (y) information about Gateway which is or has become part
of the public knowledge or literature, or is or has become generally available
to the public, in either case other than as a result of a disclosure by or
through T-NETIX or the T-NETIX Associates; or (z) information about Gateway
which was made available to T-NETIX prior to disclosure by Gateway to T-NETIX,
on a nonconfidential basis, by a person or entity that is not subject to this
Agreement and that is not known to be obligated to keep such information
confidential.

         6.3 ACCESS. T-NETIX agrees that, between the date of this Agreement and
the Closing Date, T-NETIX shall, after receiving reasonable advance notice from
Gateway, give Gateway and Gateway Associates reasonable access (during normal
business hours) to all information in T-NETIX's possession regarding the
environmental condition of its Real Property, its intellectual property and to
the books, records, contracts and officers of T-NETIX for the purpose of
enabling such parties to further investigate and inspect the business,
operations and financial and legal affairs of T-NETIX.

         6.4 NO SHOPPING.

                  (a) T-NETIX, its officers and directors, and the T-NETIX
Shareholder Signatories will not, and T-NETIX shall direct and use its best
efforts to cause its employees, agents and representatives to not, during the
period beginning on the date hereof and continuing through Closing, except to
the extent that the board of directors concludes in good faith that it is
legally required for the discharge by the board of directors of its fiduciary
duties: (i) sell or arrange for the sale of any T-NETIX capital stock; or (ii)
negotiate, solicit or encourage or


                                     - 41 -

<PAGE>   136



authorize any person to solicit from any third party any proposals relating to a
"T-NETIX Change of Control," which shall mean the merger or consolidation of
T-NETIX, disposition of the business or all or substantially all the assets of
T-NETIX or the sale of a total of fifty percent (50%) or more of the capital
stock of T-NETIX; or (iii) make any information concerning T-NETIX available to
any person for the purpose of affecting or causing a T-NETIX Change of Control.
This paragraph (a) of Section 6.4 shall not apply to any merger in which T-NETIX
is the surviving corporation and the current shareholders of T-NETIX are the
holders of at least two-thirds of the voting power and economic benefits of
T-NETIX immediately following the merger.

                  (b) In the event T-NETIX receives any solicitation, proposal
or offer from any person relating to a T-NETIX Change of Control, T-NETIX shall
promptly give written notice to Gateway of such event. Notice shall not be
deemed promptly given if it is given more than two business days after an
officer or the chairman of the board of T-NETIX has received or has been
notified of, orally or in writing, any such solicitation, proposal or offer.

         6.5 FILINGS AND CONSENTS. T-NETIX shall use commercially reasonable
efforts to do each of the following:

                  (a) make or give each filing or notice required to be made or
given pursuant to any applicable Legal Requirement by T-NETIX in connection with
the execution and delivery of this Agreement or in connection with the
consummation or performance of any of the transactions contemplated hereby; and

                  (b) obtain each consent required to be obtained by T-NETIX
pursuant to any applicable Legal Requirement or material contract to which
T-NETIX is a party or by which it is bound in connection with the execution and
delivery of any of this Agreement or in connection with the consummation or
performance of the transactions contemplated hereby.

         6.6 UPDATED T-NETIX DISCLOSURE LETTER. Between the date of this
Agreement and the Closing Date, if T-NETIX becomes aware of any fact or
condition that causes any of the representations and warranties of T-NETIX in
this Agreement to become untrue, misleading, or inaccurate in any material
respect, T-NETIX will immediately deliver to Gateway an updated T-NETIX
Disclosure Letter ("Updated T-NETIX Disclosure Letter") setting forth the facts
or conditions that cause such representation, warranty, or T-NETIX Disclosure
Letter to become untrue, misleading, or inaccurate.

         6.7 POOLING AND TAX-FREE REORGANIZATION TREATMENT. T-NETIX shall not
intentionally take, fail to take or cause to be taken or not be taken, any
action within its control, whether before or after the Closing, which would
disqualify the Merger as a "pooling of interests" for accounting purposes or as
a "reorganization" within the meaning of Section 368(a) of the Code.

         6.8 PROXY MATERIALS. T-NETIX shall use commercially reasonable efforts
to prepare a joint proxy statement/offering memorandum for (i) the special
meeting of Gateway Shareholders


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<PAGE>   137



to be held pursuant to Section 1.1(a) hereof, (ii) the special meeting of
T-NETIX Shareholders to be held pursuant to Section 1.1(b) hereof, and (iii)
offering the T-NETIX Stock to be issued pursuant to the Merger. Such joint proxy
statement/offering memorandum shall comply with all applicable Legal
Requirements and shall be filed with the SEC pursuant to the Securities Exchange
Act of 1934 and the rules thereunder.


                                    ARTICLE 7
                            COVENANTS OF ALL PARTIES

         The parties hereto agree that:

         7.1 COMMERCIALLY REASONABLE EFFORTS; FURTHER ASSURANCES. Subject to the
terms and conditions of this Agreement, each party will use commercially
reasonable efforts to take, or cause to be taken, all actions and to do, or
cause to be done, all things necessary or desirable under applicable Legal
Requirements to consummate the transactions contemplated by this Agreement.
Gateway and T-NETIX all agree to execute and deliver such other documents,
certificates, agreements and other writings and to take such other actions as
may be necessary or desirable in order to consummate or implement expeditiously
the transactions contemplated by this Agreement.

         7.2 CERTAIN FILINGS, ETC. Gateway and T-NETIX shall cooperate with one
another (a) in determining whether any action by or in respect of, or filing
with, any governmental body, agency, official or authority is required, or any
actions, consents, approvals or waivers are required to be obtained from parties
to any material contracts, in connection with the consummation of the
transactions contemplated by this Agreement and (b) in taking such actions or
making any such filings, in furnishing such information as may be required in
connection therewith, and in seeking timely to obtain any such actions,
consents, approvals or waivers.

         7.3 PUBLIC ANNOUNCEMENTS. The parties agree not to issue any press
release or make any public statement with respect to this Agreement or the
transactions contemplated hereby prior to the Closing without the prior consent
of T-NETIX and Gateway (which consent shall not be unreasonably withheld or
delayed), except to the extent that any party hereto is required by law to make
any such disclosure and such party notifies the other parties hereto a
reasonable time before making such disclosure of the nature and content of the
intended disclosure, and consults with such other parties regarding the nature
and content of such disclosure.

         7.4 HART-SCOTT-RODINO FILING. The parties shall cooperate in making any
necessary filings under the Hart-Scott-Rodino Antitrust Improvements Act of 1976
(the "HSR Act"), and if appropriate, in seeking early termination of any waiting
periods thereunder. The costs of such filing shall be shared equally by the
parties.




                                     - 43 -

<PAGE>   138
         7.5 AFFILIATES.


                  (a) Promptly, but in any event within fifteen (15) days, after
the execution and delivery of this Agreement, (i) Gateway shall deliver to
T-NETIX (x) a letter identifying all persons who, to the knowledge of Gateway,
may be deemed to be affiliates of Gateway pursuant to Rule 145 under the
Securities Act, including without limitation all directors and executive
officers of Gateway and (y) a letter identifying all persons who, to the
knowledge of Gateway, may be deemed to be affiliates of Gateway as that term
(affiliate) is used for purposes of qualifying for pooling-of-interests
accounting treatment; and (ii) T-NETIX shall identify to Gateway all persons
who, to the knowledge of T-NETIX, may be deemed affiliates of T-NETIX as that
term (affiliate) is used for purposes of qualifying for pooling-of-interests
accounting treatment.

                  (b) Gateway shall cause each director of Gateway to, and
Gateway shall use its best efforts to cause each executive officer of Gateway
and each other person who may be deemed an affiliate of Gateway (pursuant to
either Rule 145 under the Securities Act or the accounting treatment rules) to
execute and deliver to T-NETIX within 30 days after the execution and delivery
of this Agreement, a letter substantially in the form of Exhibit B hereto
agreeing to be bound by the restrictions of Rule 145 and agreeing to be bound by
the rules which permit the Merger to be treated as a pooling-of-interests for
accounting purposes. In addition, T-NETIX shall cause each director of T-NETIX,
and T-NETIX shall use its best efforts to cause each executive officer of
T-NETIX and each other person who may be deemed an affiliate of T-NETIX (as that
term is used for purposes of qualifying for pooling-of-interests) to execute and
deliver to Gateway within thirty (30) days after the execution and delivery of
this Agreement, a letter in which such persons agree to be bound by the rules
which permit the Merger to be treated as a pooling-of-interests for accounting
purposes.

                  (c) T-NETIX agrees to publish financial results covering at
least 30 days of combined operations of T-NETIX and Gateway as soon as
practicable after the Effective Time.


                                    ARTICLE 8
                              CONDITIONS TO CLOSING

         8.1 CONDITIONS FOR THE BENEFIT OF T-NETIX. The obligation of T-NETIX to
consummate the transactions contemplated hereby is subject to the satisfaction,
as of the Closing Date, of the following conditions (any of which may be waived
by T-NETIX in whole or in part):

                  (a) Accuracy of Representations and Warranties. The
representations and warranties set forth in Articles 3 and 4 being true and
accurate as of the date of this Agreement and true and accurate in all material
respects (except representations and warranties which are themselves qualified
as to materiality, which shall be true and accurate in all respects) as of the
Closing Date with the same effect as though made on and as of the Closing Date,
except to the extent that (a) any of such representations and warranties refers
specifically to a date other than the Closing Date or (b) the accuracy of any of
such representations and warranties is affected by any of the transactions
contemplated by this Agreement.


                                     - 44 -

<PAGE>   139




                  (b) Performance. Gateway having performed all obligations
required by this Agreement to be performed by Gateway on or before the Closing
Date, including without limitation the covenants set forth in Article 5.

                  (c) Certificate. T-NETIX having received from any duly
authorized officer of Gateway a certificate dated the Closing Date confirming
that the conditions in Sections 8.1(a) and (b) have been met. Such certificate
shall be deemed a representation and warranty hereunder.

                  (d) No Injunction. There not being in effect, at the Closing,
any injunction or other binding order of any court or other tribunal having
jurisdiction over T-NETIX that prohibits the consummation of the transactions
contemplated in this Agreement.

                  (e) No Material Adverse Effect. There having been no Material
Adverse Effect on Gateway since November 30, 1998.

                  (f) Approvals and Consents. All required approvals of Gateway
Shareholders and all required consents, licenses, approvals, estoppel
certificates, releases of encumbrances, acknowledgments of payment in full and
authorizations, as set forth in the Gateway Disclosure Letter, having been
obtained and delivered to T-NETIX.

                  (g) Legal Opinions. T-NETIX having received from counsel to
Gateway an opinion in form and substance reasonably satisfactory to T-NETIX.

                  (h) Certificate of Secretary. Gateway having delivered a
certificate, signed by the secretary of Gateway, certifying (i) current copies,
as amended, of the Articles of Incorporation and Bylaws of Gateway and the
resolutions of the board of directors and shareholders of Gateway authorizing
this Agreement and the transactions contemplated hereby.

                  (i) Employment/Non-competition Agreements. Richard E. Cree
having executed an employment agreement in the form attached as Exhibits D-1
(the "Employment Agreement").

                  (j) Non-competition Agreements. W. P. Buckthal, Irvin Wall and
James B. Franklin having executed non-competition agreements in the form
attached as Exhibit E (the "Non-competition Agreements").

                  (k) Tax Opinion. T-NETIX shall have received an opinion (the
"Tax Opinion") from Rothgerber Johnson & Lyons LLP, counsel to T-NETIX, that the
Merger will result in a reorganization (as defined in Section 368(c) of the
Code) and that accordingly no gain or loss will be recognized for federal income
tax purposes by the T-NETIX Shareholders or the Gateway Shareholders in the
Merger.



                                     - 45 -

<PAGE>   140



                  (l) Good Standing and Tax Certificates. Gateway having
delivered to T-NETIX a Good Standing Certificate along with a Tax Certificate,
if appropriate, for Gateway dated as of the Closing Date.

                  (m) Investor Representation Letter. All Gateway Shareholders
having executed a letter in the form of Exhibit F stating that they have no
present intention to sell or transfer the T-NETIX Stock to be received in the
Merger, and that they will not sell such T-NETIX Stock except pursuant to an
effective registration statement or an exemption therefrom..

                  (n) Pooling of Interests. T-NETIX having received from its
independent accountants an opinion that the Merger will qualify for treatment as
a pooling-of-interests under GAAP.

                  (o) Royalty Agreement. The TTDP Royalty Agreement having been
duly and validly terminated effective as of the Effective Time for an amount
equal to no more than 375,339 shares of T-NETIX Stock to be paid pursuant to
Section 1.2(c) hereof.

                  (p) HSR Act. Any waiting period applicable to the Merger under
the HSR Act shall have expired or earlier termination thereof shall have been
granted and no action shall have been instituted by either the United States
Department of Justice or the Federal Trade Commission to prevent the
consummation of the transactions contemplated by this Agreement or to modify or
amend such transactions in any material manner or, if any such action shall have
been instituted, it shall have been withdrawn or a final judgment shall have
been entered against such Department or Commission, as the case may be.

                  (q) No Discovery. T-NETIX not being informed of or otherwise
having discovered any matter or matters which would represent a Material Adverse
Effect on Gateway.

                  (r) Audited Financial Statements. T-NETIX having received from
Gateway audited financial statements, including balance sheet and related
statements of income, retained earnings and cash flows, including notes thereto,
as of and for the year ended December 31, 1998, accompanied by the independent
auditor's report of KPMG LLP, independent certified public accountants, and such
financial statements do not reflect a Material Adverse Effect on Gateway since
November 30, 1998.

                  (s) Dissenting Gateway Shareholders. Holders of less than 7%
of the shares of Gateway Stock outstanding becoming Dissenting Gateway
Shareholders hereunder.

         8.2 CONDITIONS FOR THE BENEFIT OF GATEWAY. The obligation of Gateway to
consummate the transactions that are to be consummated at the Closing is subject
to the satisfaction, as of the Closing Date, of the following conditions (any of
which may be waived by Gateway in whole or in part by Gateway.



                                     - 46 -

<PAGE>   141



                  (a) Accuracy of Representations and Warranties. The
representations and warranties of T-NETIX set forth in Article 2 being true and
accurate as of the date of this Agreement, and true and accurate in all material
respects (except representations and warranties which are themselves qualified
as to materiality, which shall be true and accurate in all respects) as of the
Closing Date with the same effect, as though made on and as of the Closing Date,
except to the extent that (a) any of such representations and warranties refers
specifically to a date other than the Closing Date or (b) the accuracy of any of
such representations and warranties is affected by any of the transactions
contemplated by this Agreement.

                  (b) Performance. T-NETIX having performed all obligations
required by this Agreement to be performed by T-NETIX on or before the Closing
Date, including without limitation the covenants set forth in Article 6.

                  (c) Certificate. Gateway having received from a duly
authorized officer of T-NETIX a certificate dated the Closing Date confirming
that the conditions in Sections 8.2(a) and (b) have been met. Such certificate
shall be deemed a representation and warranty hereunder.

                  (d) No Injunction. There not being in effect, at the Closing,
any injunction or other binding order of any court or other tribunal having
jurisdiction over Gateway that prohibits the consummation of the transactions
contemplated by this Agreement.

                  (e) No Material Adverse Effect. There having been no Material
Adverse Effect on T-NETIX since October 31, 1998.

                  (f) Approvals and Consents. All required approvals of T-NETIX
Shareholders and all required consents, licenses, approvals, estoppel
certificates, releases of encumbrances, acknowledgments of payment in full and
authorizations, as set forth in the T-NETIX Disclosure Letter, having been
obtained and delivered to Gateway.

                  (g) Legal Opinion. Gateway having received from counsel to
T-NETIX an opinion in substantially the form of Exhibit G attached hereto.

                  (h) Employment Agreements. T-NETIX having executed and
delivered Employment Agreement.

                  (i) Non-competition Agreements. T-NETIX having executed and
delivered the Non-competition Agreements.

                  (j) Tax Opinion. Gateway shall have received the Tax Opinion.

                  (k) Good Standing and Tax Certificates. T-NETIX having
delivered to Gateway a Good Standing Certificate along with a Tax Certificate,
if appropriate, for T-NETIX dated as of the Closing Date.



                                     - 47 -

<PAGE>   142



                  (l) Pooling of Interests. T-NETIX having received from its
independent accountants an opinion that the Merger will qualify for treatment as
a pooling-of-interests under GAAP.

                  (m) HSR Act. Any waiting period applicable to the Merger under
the HSR Act shall have expired or earlier termination thereof shall have been
granted and no action shall have been instituted by either the United States
Department of Justice or the Federal Trade Commission to prevent the
consummation of the transactions contemplated by this Agreement or to modify or
amend such transactions in any material manner or, if any such action shall have
been instituted, it shall have been withdrawn or a final judgment shall have
been entered against such Department or Commission, as the case may be.

                  (n) No Discovery. Gateway not being informed of or otherwise
having discovered any matter or matters which would represent a Material Adverse
Effect on T-NETIX.


                                    ARTICLE 9
                             POST-CLOSING COVENANTS

         9.1 ADDITIONAL FUNDING. T-NETIX agrees to provide such funding to
Gateway after the Closing as may be necessary for Gateway to pay its
Indebtedness as such Indebtedness shall become due.

         9.2 SERVICE CREDIT. For purposes of vesting of employee benefits,
including retirement and stock option benefits, in calculating the term of
service for each person who is an employee of Gateway immediately after the
Effective Time, T-NETIX shall include such person's term of service with Gateway
as shown on Gateway's records for such employee at the Effective Time.

         9.3 BOARD OF DIRECTORS. T-NETIX shall cause the appointment of Richard
E. Cree and W. P. Buckthal to the Board of Directors of T-NETIX effective on the
Closing Date. The term of Richard E. Cree's directorship shall expire at the
2002 annual meeting of the T-NETIX shareholders, and the term of W. P.
Buckthal's directorship shall expire at the 2001 annual meeting of the T-NETIX
shareholders. In the event a vacancy occurs in the Board of Directors of T-NETIX
for any reason including an increase in the number of directors, the vacancy
shall be filled by an individual mutually agreed upon by the directors appointed
pursuant to this Agreement and the T-NETIX Shareholder Signatories.


                                   ARTICLE 10
                            TERMINATION OF AGREEMENT

         10.1 RIGHT TO TERMINATE AGREEMENT. This Agreement may be terminated
prior to the Closing:


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<PAGE>   143




                  (a) by the mutual agreement of Gateway and T-NETIX;

                  (b) by T-NETIX at any time after May 31, 1999, if any
condition set forth in Section 8.1 shall not have been satisfied or waived and
T-NETIX is not in material breach of this Agreement;

                  (c) by Gateway at any time after May 31, 1999, if any
condition set forth in Section 8.2 shall not have been satisfied or waived and
Gateway is not in material breach of this Agreement;

                  (d) by T-NETIX or Gateway if any Updated Disclosure Letter of
the other party causes any representation or warranty of such other party in
this Agreement to be inaccurate in any material respect;

                  (e) by T-NETIX pursuant to its Board of Directors' fulfillment
of its fiduciary duties as contemplated by Section 6.4 hereof; or

                  (f) by Gateway pursuant to its Board of Directors' fulfillment
of its fiduciary duties as contemplated by Section 5.5 hereof.

         10.2 EFFECT OF TERMINATION. Upon the termination of this Agreement
pursuant to Section 10.1:

                  (a) Each party shall promptly destroy or cause to be returned
to the other all Confidential Information of the other party, including any
copies made by or supplied to such party or any of such party's Associates of
any such Confidential Information;

                  (b) Each party shall pay its own costs and expenses and no
party hereto shall have any obligation or liability to the other parties hereto;
provided, however that the parties hereto shall remain bound by the provisions
of Sections 5.2, 6.2 and 7.3.

         10.3 DAMAGES.

                  (a) In the event that (i) Gateway effectuates a Gateway Change
of Control as described in Section 5.5 hereof; (ii) T-NETIX terminates this
Agreement as a result of an intentional breach by Gateway or the Gateway
Shareholder Signatories of a representation, warranty or covenant hereof and
within one year following such termination Gateway effectuates a Gateway Change
of Control; or (iii) Gateway does not take the steps required to close the
transactions contemplated by this Agreement when all conditions for the benefit
of Gateway have been satisfied or waived, and within one year after the earliest
date on which all conditions for the benefit of Gateway were satisfied or waived
Gateway effectuates a Gateway Change of Control, then, in addition to any
damages which may be available to T-NETIX at law or in equity, Gateway shall pay
to T-NETIX the amount of $5,000,000 in immediately available funds.


                                     - 49 -

<PAGE>   144




                  (b) In the event that (i) T-NETIX effectuates a T-NETIX Change
of Control as described in Section 6.4 hereof; (ii) Gateway terminates this
Agreement as a result of an intentional breach by T-NETIX or the T-NETIX
Shareholder Signatories of a representation, warranty or covenant hereof and
within one year following such termination T-NETIX effectuates a T-NETIX Change
of Control; or (iii) T-NETIX does not take the steps required to close the
transactions contemplated by this Agreement when all conditions for the benefit
of T-NETIX have been satisfied or waived, and within one year after the earliest
date on which all conditions for the benefit of T-NETIX were satisfied or waived
T-NETIX effectuates a T-NETIX Change of Control, then, in addition to any
damages which may be available to Gateway at law or in equity, T-NETIX shall pay
to Gateway the amount of $5,000,000 in immediately available funds.


                                   ARTICLE 11
                        CERTAIN REMEDIES AND LIMITATIONS

         11.1 SURVIVAL OF REPRESENTATIONS, WARRANTIES AND COVENANTS. All
representations and warranties made by T-NETIX, the T-NETIX Shareholder
Signatories, Gateway or the Gateway Shareholder Signatories in this Agreement,
in any Disclosure Letter or in any certificate delivered pursuant hereto, shall
survive the Closing until the earlier of the first anniversary of the Closing
Date or the date of publication of the first annual combined audited financial
statements of Gateway and T-NETIX, provided that there shall be no termination
of the obligation to indemnify for a Claim involving any such representation or
warranty provided a Claim Notice (as defined in Section 11.6) has been delivered
prior to such date. The representations and warranties of any party shall be
unaffected by any investigation made by or on behalf of the other parties or by
knowledge obtained as a result thereof or otherwise.

         11.2 INDEMNIFICATION BY T-NETIX.

                  (a) T-NETIX will indemnify and hold harmless Gateway
Shareholders and their respective affiliates, officers, directors, partners,
stockholders, agents, representatives, consultants and employees, and all of
their respective heirs, successors and permitted assigns (collectively, the
"Gateway Shareholder Indemnified Parties"), from and against the net amount
(determined after deduction of the amount of any insurance proceeds recovered):

                           (i) of any and all liabilities, obligations, losses,
         damages, diminutions of value, actions, Claims, liens and deficiencies
         of any kind or nature ("Losses") which exist, or which are imposed on,
         incurred by or asserted against any one or more of the Gateway
         Shareholder Indemnified Parties based upon, resulting from or arising
         out of or as to which there was any breach or inaccuracy of any
         representation, warranty, statement, certification, agreement,
         obligation or covenant made by T-NETIX in this Agreement, any T-NETIX
         Disclosure Letter, any T-NETIX Related Agreement or in any other
         written document;



                                     - 50 -

<PAGE>   145



                           (ii) of any costs or expenses (including, without
         limitation, settlement costs and reasonable attorneys', accountants'
         and experts' fees and court costs) incurred by Gateway Shareholder
         Indemnified Parties in connection with any of the foregoing (including,
         without limitation, any reasonable cost or expense incurred by Gateway
         Shareholder Indemnified Parties in enforcing their rights pursuant to
         this Section 11.2).

         Any indemnification obligation pursuant to this Section 11.2(a) is for
purposes of this Agreement defined as a "Gateway Shareholder Indemnified
Obligation."

                  (b) The Gateway Shareholders' Representative shall not be
required to make any claim or demand on behalf of the Gateway Shareholder
Indemnified Parties against any other person or entity prior to the making of
any claim or demand for indemnification or at any other time.

         11.3 LIMITATIONS ON LIABILITY OF T-NETIX.

                  (a) Except in the event of knowing and willful
misrepresentation and notwithstanding anything to the contrary in this
Agreement, the total amount of indemnification payments that T-NETIX may be
required to make hereunder shall be limited in the aggregate to the T-NETIX
Reserve Shares, which is the sole source of Gateway Shareholders'
indemnification and T-NETIX's cumulative liability shall in no event exceed the
T-NETIX Reserve Shares.

                  (b) No payment shall be required to be made for Gateway
Shareholder Indemnified Obligations unless a Claim Notice with respect thereto
has been delivered to T-NETIX on or prior to the earlier of the first
anniversary of the Closing or of the date of publication of the first annual
combined audited financial statements of Gateway and T-NETIX.

                  (c) Notwithstanding anything to the contrary in this
Agreement, and except for willful, knowing or intentional breaches of the
representations and warranties contained herein, no claim for indemnification
may be made on behalf of any Gateway Shareholder Indemnified Party unless and
until the aggregate amount of Losses and/or other amounts claimed for
indemnification on behalf of the Gateway Shareholder Indemnified Parties exceeds
$500,000.

         11.4 INDEMNIFICATION BY GATEWAY SHAREHOLDERS.

                  (a) T-NETIX and its Affiliates and their respective officers,
directors, shareholders, agents, representatives, consultants, employees and
affiliates, and all of their respective heirs, successors and permitted assigns
(collectively, the "T-NETIX Indemnified Parties") shall be indemnified and held
harmless, severally, in proportionately in accordance with their interests, by
the Gateway Shareholders entitled to receive the Merger Consideration, against
and in respect of the net amount (determined after deduction of the amount of
any insurance proceeds recovered):



                                     - 51 -

<PAGE>   146



                           (i) of any and all Losses which exist, or which are
         imposed on, incurred by or asserted against any one or more of the
         T-NETIX Indemnified Parties, based upon, resulting from or arising out
         of, or as to which there was, any breach or inaccuracy of any
         representation, warranty, statement, certification, agreement,
         obligation or covenant made by Gateway or any Gateway Shareholder
         Signatory in this Agreement, any Gateway Related Agreement, any Gateway
         Disclosure Letter or in any other written document;

                           (ii) of any costs or expenses (including, without
         limitation, settlement costs and reasonable attorneys', accountants'
         and experts' fees and court costs) incurred by T-NETIX Indemnified
         Parties in connection with any of the foregoing (including, without
         limitation, any reasonable cost or expense incurred by T-NETIX
         Indemnified Parties in enforcing their rights pursuant to this Section
         11.4).

         Any indemnification obligation pursuant to this Section 11.4(a) is for
purposes of this Agreement defined as a "T-NETIX Indemnified Obligation."

                  (b) No T-NETIX Indemnified Party shall be required to make any
claim or demand against any other person or entity prior to the making of any
claim or demand for indemnification or at any other time.

         11.5 LIMITATIONS ON LIABILITIES OF GATEWAY SHAREHOLDERS.

                  (a) Except in the event of a knowing and willful
misrepresentation and notwithstanding anything to the contrary in this
Agreement, the total amount of indemnification payments that the Gateway
Shareholders may be required to make hereunder shall be limited in the aggregate
to the Gateway Holdback Shares, which is the sole source of T-NETIX's
indemnification and the Gateway Shareholders' cumulative liability shall in no
event exceed the Gateway Holdback Shares.

                  (b) No payment shall be required to be made for T-NETIX
Indemnified Obligations unless a Claim Notice with respect thereto has been
delivered to the Gateway Shareholders' Representative on or prior to the earlier
of the first anniversary of the Closing Date or of the date of publication of
the first annual combined audited financial statements of Gateway and T-NETIX.

                  (c) Notwithstanding anything to the contrary in this
Agreement, and except for willful, knowing or intentional breaches of the
representations and warranties contained herein, no claim for indemnification
may be made by any T-NETIX Indemnified Party unless and until the aggregate
amount of Losses and/or other amounts claimed for indemnification by T-NETIX
Indemnified Parties exceeds $500,000.




                                     - 52 -

<PAGE>   147
         11.6 INDEMNIFICATION CLAIMS.


                  (a) If either a T-NETIX Indemnified Party, on the one hand, or
the Gateway Shareholders' Representative on behalf of a Gateway Shareholder
Indemnified Party, on the other hand, (the "Claimants") wishes to assert an
indemnification claim hereunder (an "Indemnification Claim"), the Claimant shall
deliver to the Gateway Shareholders' Representative, if a T-NETIX Indemnified
Party, or to T-NETIX, if the Claimant is the Gateway Shareholders'
Representative on behalf of a Gateway Shareholder Indemnified Party, a written
notice (a "Claim Notice") setting forth:

                           (i) the matter giving rise to the Indemnification 
         Claim,

                           (ii) a detailed description of all of the facts and
         circumstances known to Claimant giving rise to the Indemnification
         Claim, and

                           (iii) a detailed description of, and a reasonable
         estimate of the total amount of, the monetary amounts actually incurred
         or expected to be incurred for which indemnification is sought.

                  (b) T-NETIX Indemnified Parties and Gateway Shareholder
Indemnified Parties are referred to herein as "Indemnified Parties," and the
persons from whom indemnification may be sought pursuant to this Section 11.6
are referred to as the "Indemnifying Parties." Where the Indemnified Parties or
the Indemnifying Parties are, or are related to, the Gateway Shareholders, the
actions described herein shall be taken on their behalf by the Gateway
Shareholders' Representative. Within twenty (20) days after receipt of any Claim
Notice, the Indemnifying Parties will (i) acknowledge in writing their
responsibility for all or part of such matter for which indemnification is
sought under this Article 11, and will either (x) pay or otherwise satisfy the
portion of such matter as to which responsibility is acknowledged, or (y) take
such other action as is reasonably satisfactory to the Indemnified Party to
provide reasonable security or other assurances for the performance of their
obligations hereunder, and/or (ii) give written notice to the Indemnified Party
of their intention to dispute or contest all or part of such responsibility.
Upon delivery of such notice of intention to contest, the parties will negotiate
in good faith to resolve as promptly as possible any dispute as to
responsibility for, or the amount of, any such matter. The T-NETIX Reserve
Shares or the Gateway Holdback Shares, as the case may be, shall be valued for
the purpose of any Indemnification Claim at the average closing price of T-NETIX
Stock for the five trading days immediately preceding the satisfaction of such
Indemnification Claim.

         11.7 DEFENSE OF THIRD-PARTY ACTIONS. If an Indemnified Party receives
notice or otherwise obtains Knowledge of any Claim or any threatened Claim that
may give rise to an Indemnification Claim against an Indemnifying Party, then
the Indemnified Party shall promptly deliver to the Indemnifying Party a written
notice describing such Claim in reasonable detail. The untimely delivery of such
written notice by the Indemnified Party to the Indemnifying Party shall relieve
the Indemnifying Party of liability with respect to such Claim to the extent it
has been prejudiced by lack of timely notice under this Article 11 with respect
to such Claim. The Indemnifying Party shall have the right, at its option, to
assume the defense of any such Claim


                                     - 53 -

<PAGE>   148



with its own counsel, reasonably satisfactory to the Indemnified Party, provided
that the Indemnifying Party may not assume the defense of any Claim unless there
are sufficient Gateway Holdback Shares or T-NETIX Reserve Shares, as applicable,
to fully indemnify Indemnified Party against the amount of such Claim and all
other pending Claims against the Gateway Holdback Shares or T-NETIX Reserve
Shares, as applicable. If the Indemnifying Party elects to assume the defense of
any such Claim, then:

                  (a) notwithstanding anything to the contrary contained in this
Agreement, the Indemnifying Party shall not be required to pay or otherwise
indemnify the Indemnified Party against any attorneys' fees or other expenses
incurred on behalf of the Indemnified Party in connection with such matter
following the Indemnifying Party's election to assume the defense of such matter
so long as the Indemnifying Party continues to diligently conduct such defense;

                  (b) the Indemnified Party shall make available to the
Indemnifying Party all books, records and other documents and materials that are
under the direct or indirect control of the Indemnified Party or any of the
Indemnified Party's Associates that the Indemnifying Party considers such
necessary or desirable for the defense of such matter at the expense of the
Indemnifying Party and shall make available to the Indemnifying Party reasonable
access to Indemnified Party's personnel;

                  (c) the Indemnified Party shall execute such documents and
take such other actions as the Indemnifying Party may reasonably request for the
purpose of facilitating the defense of, or any settlement, compromise or
adjustment relating to, such Claim (with the Indemnifying Party to reimburse
Indemnified Party for third-party, out-of-pocket expenses) and the Indemnified
Party shall not be required to take any such action or execute any document
which imposes any equitable or unindemnified liability remedy on any Indemnified
Party or would adversely affect the business or operations of T-NETIX or
Gateway;

                  (d) the Indemnified Party shall otherwise fully cooperate as
reasonably requested by the Indemnifying Party in the defense of such Claim
(with the Indemnifying Party to reimburse Indemnified Party for third-party,
out-of-pocket expenses); and

                  (e) the Indemnified Party shall not admit any liability with
respect to such Claim.

         If the Indemnifying Party fails or refuses to assume the defense of
such Claim, then the Indemnified Party shall proceed diligently to defend such
Claim with the assistance of counsel, and the Indemnifying Party shall
thereafter reimburse Indemnified Party on a current basis, in accordance with
the procedures set forth in this Agreement, as requested by Indemnified Party
for all costs and expenses of defense for which Indemnified Party is entitled to
indemnification pursuant to the terms of this Agreement. No third-party Claim
may be settled by the Indemnified Party without notice to, and the written
consent of, the Indemnifying Party which consent must not be unreasonably
withheld. If such consent is not given, or written notice that it is being
withheld and the reasons therefor has not been received by the Indemnified Party
within 15 days


                                     - 54 -

<PAGE>   149



after such notice has been received by the Indemnifying Party, the consent of
the Indemnifying Party to such settlement shall be deemed given.

         11.8 SUBROGATION. To the extent that the Indemnifying Party makes or is
required to make any indemnification payment to any Indemnified Party, the
Indemnifying Party shall be entitled to exercise, and shall be subrogated to,
any rights and remedies (including rights of indemnity, rights of contribution
and other rights of recovery) that the Indemnified Party or any of the
Indemnified Party affiliates may have against any other person (other than any
T-NETIX Indemnified Party or Gateway Shareholder Indemnified Party) with respect
to any Losses, circumstances or matters to which such indemnification payment is
directly or indirectly related. The Indemnified Party shall permit the
Indemnifying Party to use the name of the Indemnified Party and the names of the
Indemnified Party's affiliates in any transaction or in any proceeding or other
matter involving any of such rights or remedies; and the Indemnified Party shall
take such actions as the Indemnifying Party may reasonably request for the
purpose of enabling the Indemnified Party to perfect or exercise the
Indemnifying Party's right of subrogation hereunder.

         11.9 EXCLUSIVITY. The right of each party hereto to assert
Indemnification Claims and receive indemnification payments pursuant to this
Article 11 shall be the sole and exclusive right and remedy exercisable by any
person or entity entitled to indemnification hereunder with respect to any
breach by the other party hereto of any representation or warranty or any other
indemnity obligation hereunder, except as provided in Section 10.3 hereof.

         11.10 RETENTION OF RECORDS. From and after the Closing Date, T-NETIX
shall preserve, and shall cause Gateway to preserve, all books, records and
other documents, materials and information relevant to the representations,
warranties and covenants set forth in this Agreement until the later of three
(3) years following the Closing Date or for such longer period as the rights of
the parties hereunder may exist. At all times after the Closing Date, T-NETIX
and Gateway shall give Gateway Shareholders and Gateway Associates reasonable
access to such books, records and other documents, materials and information of
T-NETIX and Gateway relating to the operation of the business of T-NETIX and
Gateway up to and including the Closing Date.


                                   ARTICLE 12
                                  MISCELLANEOUS

         12.1 MATERIALITY. For purposes of this Agreement, a contract,
obligation, liability, transaction, change, breach, encumbrance, proceeding,
untruth, inaccuracy or other matter or event shall not be deemed "material" if
the monetary amount involved is less than $250,000, or, if more than one such
matter or event, $500,000 in the aggregate. A "Material Adverse Effect" is any
adverse effect on the business, operations, assets, Material Contracts or
financial condition or results of a company unless the effect can reasonably be
expected to result in less than a $500,000 effect on the financial condition or
results of operation of such company or the effect is due to general changes in
the economy or the business the company.



                                     - 55 -

<PAGE>   150



         12.2 NOTICES; ETC. All notices, instructions and other communications
given hereunder or in connection herewith shall be in writing. Any such notice,
instruction or communication shall be sent either (i) by registered or certified
mail, return receipt requested, postage prepaid, or (ii) via a reputable
nationwide overnight courier service, in each case to the address set forth
below. Any such notice, instruction or communication shall be deemed to have
been delivered three business days after it is sent postage prepaid, or one
business day after it is sent via a reputable nationwide overnight courier
service.

If to T-NETIX or TAC to:
                                    T-NETIX, Inc.
                                    67 Inverness Drive East, Suite 100
                                    Englewood, CO 80112
                                    Attention: Alvyn A. Schopp
                                    Tel: (303) 790-9111
                                    Fax: (303) 790-9540

with a copy to:                     Herbert H. Davis III, Esq.
                                    Rothgerber Johnson & Lyons LLP
                                    1200 17th Street, Suite 3000
                                    Denver, CO 80202
                                    Tel: (303) 623-9000
                                    Fax: (303) 623-9222

If to Gateway Shareholders' Representative, to:

                                    Richard E. Cree
                                    1544 Valwood Parkway, Suite 102
                                    Carrollton, TX 75006
                                    Tel:
                                    Fax: (650) 494-1417

With a copy to:                     Fenwick & West LLP
                                    Two Palo Alto Square
                                    Palo Alto, CA 94306
                                    Attention: Kevin Kelso
                                    Tel: (650) 494-0600
                                    Fax: (650) 494-1417

If to Gateway, to:                  1544 Valwood Parkway, Suite 102
                                    Carrollton, TX 75006
                                    Attention: Richard E. Cree
                                    Tel:
                                    Fax: (650) 494-1417



                                     - 56 -

<PAGE>   151



With a copy to:                     Fenwick & West LLP
                                    Two Palo Alto Square
                                    Palo Alto, CA 94306
                                    Attention: Kevin Kelso
                                    Tel: (650) 494-0600
                                    Fax: (650) 494-1417

or, in each case, to such other address as may be specified in writing to the
other parties.

         Any party may give any notice, instruction or communication in
connection with this Agreement using any other means (including personal
delivery, telecopy or ordinary mail), but no such notice, instruction or
communication shall be deemed to have been delivered unless and until it is
actually received by the party to whom it was sent. Any party may change the
address to which notices, instructions or communications are to be delivered by
giving the other parties to this Agreement notice thereof in the manner set
forth in this Section 12.3.

         12.3 ASSIGNMENT. No party may assign or otherwise transfer this
Agreement or any of his or its rights hereunder to any person or entity.

         12.4 ENTIRE AGREEMENT; AMENDMENT; GOVERNING LAW; ETC. This Agreement
(together with the Exhibits and Disclosure Letters) embody the entire agreement
and understanding among the parties hereto with respect to the subject matter
hereof. This Agreement may be amended, modified, waived, discharged or
terminated only by (and any consent hereunder shall be effective only if
contained in) an instrument in writing signed by the party against which
enforcement of such amendment, modification, waiver, discharge, termination or
consent is sought. This Agreement shall be construed in accordance with and
governed by the laws of the State of Colorado as it applies to contracts to be
performed entirely within the State of Colorado. No representation or warranty
(either express, implied or otherwise) is being made by any party with respect
to the subject matter hereof other than as expressly set forth herein.

         12.5 COUNTERPARTS. This Agreement may be executed in several
counterparts, each of which is an original, but all of which shall constitute
one instrument.

         12.6 THIRD-PARTY RIGHTS. The parties do not intend to confer any
benefit hereunder on any person or entity other than the parties hereto, the
Gateway Shareholders, the Indemnified Parties and their respective successors in
interest.

         12.7 RECITALS AND EXHIBITS. Each of the Recitals and Exhibits included
herein or referred to herein and attached hereto is an integral part of this
Agreement and is incorporated herein by this reference.

         12.8 PRONOUNS. All pronouns and any variations thereof used in this
Agreement shall be deemed to refer to the masculine, feminine or neuter,
singular or plural, as appropriate.



                                     - 57 -

<PAGE>   152



         12.9 AUTHORITY AND EXECUTION. Each person executing this Agreement on
behalf of a party hereto represents and warrants that he is duly and validly
authorized to do so on behalf of such party, with full right and authority to
execute this Agreement and to bind such party with respect to all of its
obligations hereunder.

         12.10 SEVERABILITY. Any term or provision of this Agreement which is
invalid or unenforceable in any jurisdiction, as to such jurisdiction, shall be
ineffective to the extent of such invalidity or unenforceability, without
rendering invalid or unenforceable the remaining terms and provisions of this
Agreement or affecting the validity or enforceability of any of the terms or
provisions of this Agreement in any other jurisdiction.

         12.11 TIME OF ESSENCE. Time is of the essence of this Agreement.

         12.12 INTERPRETATION. Each party acknowledges that such party, either
directly or through such party's representatives, has participated in the
drafting of this Agreement, and any applicable rule of constructions that
ambiguities are to be resolved against the drafting party should not be applied
in connection with the construction or interpretation of this Agreement.

         IN WITNESS WHEREOF, the parties hereto have duly caused this Agreement
to be executed as of the date first above written.

                            T-NETIX, Inc., a Colorado corporation


                            By:
                               ------------------------------------------------
                               Alvyn A. Schopp, Chief Executive Officer

                            GATEWAY TECHNOLOGIES, INC., a Texas
                             corporation


                            By:
                               ------------------------------------------------
                               Richard E. Cree,  President

                            T-NETIX ACQUISITION CORP., a Colorado
                            corporation


                            By:
                               ------------------------------------------------
                               Alvyn A. Schopp, Chief Executive Officer

                               GATEWAY SHAREHOLDER SIGNATORIES


                            ---------------------------------------------------
                            Richard E. Cree


                                     - 58 -

<PAGE>   153




                            ---------------------------------------------------
                            G. B. Cree, Jr.



                            ---------------------------------------------------
                            W. P. Buckthal



                            ---------------------------------------------------
                            Irvin Wall



                            ---------------------------------------------------
                            James B. Franklin

                            T-NETIX SHAREHOLDER SIGNATORIES



                            ---------------------------------------------------
                            Alvyn A. Schopp



                            ---------------------------------------------------
                            Daniel M. Carney



                                    - 59 -

<PAGE>   154



                                   EXHIBIT A-1

                               ARTICLES OF MERGER
                                     BETWEEN
                            T-NETIX ACQUISITION CORP.
                                       AND
                           GATEWAY TECHNOLOGIES, INC.

         The undersigned corporations, T-NETIX Acquisition Corp., a Colorado
corporation ("TAC"), and Gateway Technologies, Inc., a Texas corporation
("Gateway"), pursuant to Section 7-111-105 of the Colorado Business Corporation
Act, adopt the following Articles of Merger:

         Article 1. On the effective date specified below, TAC shall merge with
and into Gateway and the separate existence of TAC shall cease pursuant to the
terms of the Agreement and Plan of Merger attached hereto as EXHIBIT A
("Agreement"), and Gateway shall continue as the surviving corporation.

         Article 2. On February 9, 1999, the Board of Directors of TAC adopted
the Agreement.

         Article 3. On February 9, 1999, the Board of Directors of Gateway
adopted the Agreement

         Article 4. On February 8, 1999, the sole shareholder of TAC voted on
the Agreement. The number of shares voted for the Agreement by each voting group
entitled to vote was sufficient for approval.

         Article 5. On ____________, 1999, the shareholders of Gateway voted on
the Agreement. The number of shares voted for the Agreement by each voting group
entitled to vote was sufficient for approval.

         Article 6. The effective time and date of the Merger shall be 5:01 p.m.
Eastern Time, _________________, 1999.

         IN WITNESS WHEREOF, these Articles of Merger have been signed and
verified by the duly authorized officers of Gateway and TAC on this _____ day of
______________, 1999.

                                   T-NETIX ACQUISITION CORP., a Colorado
                                   corporation


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



                                   GATEWAY TECHNOLOGIES, INC. a Texas
                                   corporation


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



                                   - 1 -

<PAGE>   155



                                   EXHIBIT A-2


                               ARTICLES OF MERGER
                                     MERGING
                            T-NETIX ACQUISITION CORP.
                                      INTO
                           GATEWAY TECHNOLOGIES, INC.

         Pursuant to the provisions of Article 5.04 of the Texas Business
Corporation Act ("TBCA"), these Articles of Merger are executed and filed for
purposes of merging T-NETIX ACQUISITION CORP. into GATEWAY TECHNOLOGIES, INC.


                                    ARTICLE I
                              NAME AND JURISDICTION

         The parties to the Agreement and Plan of Merger are Gateway
Technologies, Inc., a Texas corporation ("Gateway"), and T-NETIX, Inc., a
Colorado corporation ("T-NETIX"), and T-NETIX Acquisition Corp., a Colorado
corporation ("TAC").


                                   ARTICLE II
                                   RESOLUTION

         The resolution approving the merger of TAC and Gateway and the
Agreement and Plan of Merger (the "Agreement") was adopted by the Board of
Directors of Gateway on the 9th day of February, 1999, and is attached hereto as
EXHIBIT A.

         The resolution approving the merger of TAC and Gateway and the
Agreement was adopted by the Board of Directors of TAC on the 9th day of
February, 1999, and is attached hereto as EXHIBIT B. Approval of the Agreement
was duly authorized by all action required by TAC's Articles of Incorporation
and Bylaws and the Colorado Business Corporation Act.


                                   ARTICLE III
                            ARTICLES OF INCORPORATION

         The Articles of Incorporation of Gateway shall be the Articles of
Incorporation of the surviving corporation without amendment.


                                   ARTICLE IV
                                AGREEMENT ON FILE

         The Agreement executed on February 10, 1999, is on file at the
principal office of Gateway, the surviving corporation, at 1544 Valwood Parkway,
Suite 102, Carrollton, Texas


                                    - 1 -

<PAGE>   156



75006. A copy of the Agreement will be provided, upon written request and
without cost, to each shareholder of Gateway.


                                    ARTICLE V
                               OUTSTANDING SHARES

         Gateway has 729,004 outstanding shares of common stock. TAC has 729,004
         outstanding shares of common stock.


                                   ARTICLE VI
                              SHAREHOLDER APPROVAL

         On ____________, 1999, the shareholders of Gateway approved the
Agreement. The number of shares voted for the Agreement was ________, and the
number of shares voted against the Agreement was ________.

         On ____________, 1999, the shareholders of TAC approved the Agreement.
The number of shares voted for the Agreement was 729,004, and the number of
shares voted against the Agreement was 0.


                                   ARTICLE VII
                               SERVICE OF PROCESS

         Following the Merger, Gateway survives the Merger and may be served
with process in the State of Texas in any proceeding for enforcement of any
obligation of Gateway as well as for enforcement of any obligation of the
Surviving Corporation arising from the Merger, including any suit or proceeding
to enforce the right of any stockholder, and it does hereby irrevocably appoint
the Secretary of State of Texas as its agent to accept service of process in any
such suit or other proceeding. The address to which a copy of such process shall
be mailed by the Secretary of State is 1544 Valwood Parkway, Suite 102,
Carrollton, Texas 75006, until the Surviving Corporation shall have hereafter
designated in writing to the said Secretary of State a different address for
such purpose. Service of such process may be made by personally delivering to
and leaving with the Secretary of State of Texas duplicate copies of such
process, one of which copies the Secretary of State of Texas shall forthwith
send by registered mail to Gateway at the above address.


                                  ARTICLE VIII
                                 EFFECTIVE DATE

         The Merger shall be effective at 5:01 p.m. Eastern Time on
_______________, 1999.




                                    - 2 -

<PAGE>   157



         IN WITNESS HEREOF, the parties to the Agreement have caused these
Articles of Merger to be signed this ______ day of ____________, 1999.

                                      GATEWAY TECHNOLOGIES, INC.
                                      a Texas corporation


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

                                      T-NETIX ACQUISITION CORP.,
                                      a Colorado corporation


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



                                      - 3 -

<PAGE>   158



                                    EXHIBIT B

                                 RULE 145 LETTER



T-NETIX, Inc.
67 Inverness Drive East, Suite 100
Englewood, Colorado  80112

Dear Sirs:

         In connection with the acquisition (the "Acquisition") of Gateway
Technologies, Inc., a Texas corporation ("Gateway"), by T-NETIX, Inc., a
Colorado corporation ("T-NETIX"), through the merger of T-NETIX Acquisition
Corp., a Colorado corporation and wholly owned subsidiary of T-NETIX ("TAC"),
with and into Gateway, the undersigned, a holder of certain shares of common
stock of Gateway, par value $1.00 per share ("Gateway Stock"), is entitled to
receive certain shares of common stock of T-NETIX, stated value $0.01 per share
("T-NETIX Stock"), pursuant to and in accordance with that certain Agreement and
Plan of Merger dated February 10, 1999 (the "Agreement"), by and among Gateway,
T-NETIX, TAC and certain shareholders of Gateway and T-NETIX. Capitalized terms
used but not defined herein shall have the meanings given them in the Agreement.

         The undersigned acknowledges that the undersigned is an "Affiliate" of
Gateway, as that term is defined in Rule 144 under the Securities Act of 1933,
as amended (the "Securities Act"). As such, the undersigned is subject to the
restrictions on resale stated in Rule 145 under the Securities Act.

         The undersigned hereby covenants with T-NETIX that the undersigned will
not sell, assign or transfer any of the shares of T-NETIX Stock received by the
undersigned in exchange for shares of Gateway Stock in connection with the
Acquisition (other than to T-NETIX) except (i) in accordance with the provisions
of paragraphs (c), (e), (f) and (g) of Rule 144; (ii) if after the Effective
Time the undersigned is not an Affiliate of T-NETIX and a period of at least one
year, as determined in accordance with Rule 144(d), has elapsed since the
Effective Time and T-NETIX meets the requirements of Rule 144(c); or (iii) at
such time as the undersigned is not, and for three months has not been, an
Affiliate of T-NETIX, and a period of at least two years, as determined in
accordance with Rule 144(d), has elapsed since the Effective Time.

         The undersigned agrees that T-NETIX may instruct its transfer agent to
withhold the transfer of any shares of T-NETIX Stock to be transferred by the
undersigned. Provided such transfer is not prohibited by any other provision of
this letter agreement, upon receipt of evidence of compliance with Rule 145
under the Securities Act, as described above, T-NETIX shall cause the transfer
agent to effectuate the proposed transfer of the shares of T-NETIX Stock.

         The undersigned further covenants with T-NETIX that if the pooling of
interests method of accounting is used by T-NETIX to account for the
Acquisition, then the undersigned will not sell, transfer or otherwise dispose
of any of the shares of T-NETIX Stock received by the


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<PAGE>   159



undersigned in exchange for shares of Gateway Stock in connection with the
Acquisition (other than to T-NETIX) until after such time as results covering at
least 30 days of post-Acquisition combined operations of Gateway and T-NETIX
have been published by T-NETIX, in the form of a quarterly earnings report, an
effective registration statement filed with the SEC, a report to the SEC on Form
10-K, 10-Q or 8-K or any other public filing or announcement which includes such
combined results of operations.

         The undersigned acknowledges and agrees that the legends set forth
below will be placed on certificates representing the T-NETIX Stock received by
the undersigned in connection with the Acquisition or held by a transferee
thereof, which legends will be removed by delivery of substitute certificates
upon receipt by T-NETIX of an opinion in form and substance reasonably
satisfactory to T-NETIX from counsel reasonably satisfactory to T-NETIX to the
effect that such legends are no longer required for purposes of the Securities
Act:

         The shares represented by this certificate were issued pursuant to a
         business combination which is being accounted for as a pooling of
         interests, in a transaction to which Rule 145 promulgated under the
         Securities Act of 1933 applies. The shares have not been acquired by
         the holder with a view to, or for resale in connection with, any
         distribution thereof within the meaning of the Securities Act of 1933.
         The shares may not be sold, pledged or otherwise transferred (i) until
         such time as T-NETIX shall have published financial results covering at
         least 30 days of post-merger combined operations and (ii) except in
         accordance with Rule 145 under the Securities Act of 1933.

         The undersigned represents and warrants to T-NETIX that: (a) the
undersigned has full right and power to execute and deliver this letter
agreement, and this letter has been duly executed and delivered by the
undersigned; and (b) the undersigned is acquiring the T-NETIX Stock solely for
the purpose of investment and, except as set forth in the Agreement, not with a
view to, or for sale in connection with, any distribution thereof.

                                       Very truly yours,


                                       ----------------------------------------



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<PAGE>   160



                                   EXHIBIT D-1

                              EMPLOYMENT AGREEMENT

         This Employment Agreement ("Agreement") is entered into effective as of
the ___ day of February 1999 by and between T-NETIX, Inc., a Colorado
corporation ("T-NETIX") , and Richard E. Cree ("Employee").

         WHEREAS, T-NETIX has entered into an Agreement and Plan of Merger with
Employee's current employer, Gateway Technologies, Inc. ("GTI") pursuant to
which GTI will merge with a subsidiary of T-NETIX (the "Merger"), and

         WHEREAS, T-NETIX desires to continue to have the benefits of Employee's
knowledge and experience as a full time senior executive without distraction by
employment-related uncertainties and considers such employment a vital element
to protecting and enhancing the best interests of T-NETIX, and its subsidiaries
and shareholders, and Employee desires to continue to be employed full time with
T-NETIX; and

         WHEREAS, T-NETIX and Employee desire to enter into an agreement under
which Employee will be employed by T-NETIX for a three year term commencing on
the effective date of the Merger (the "Effective Date"),

         NOW, THEREFORE, in consideration of the mutual covenants set forth
herein and other good and valuable consideration, the parties agree as follows:

1.       TERM. T-NETIX hereby agrees to employ Employee for a three-year term
         commencing on the Effective Date and ending on the third anniversary
         date of the Effective Date, unless earlier terminated as provided in
         this Agreement. The term of this Agreement may only be extended by the
         mutual agreement of the parties hereto.

2.       DUTIES. Employee shall serve as the President of GTI and Executive
         Vice-President for Corporate Development of T-NETIX and shall report to
         the Chief Executive Officer of T-NETIX, and shall assume such other
         duties as the Chief Executive Officer or Board of Directors of
         T-NETIX(the "Board") may from time to time prescribe consistent with
         duties of an executive officer of a technology company of such size as
         T-NETIX, including such positions with and duties for T-NETIX's
         subsidiaries as may be assigned from time to time. Employee agrees to
         devote substantially all his time, attention and best efforts to the
         performance of his duties. 

3.       COMPENSATION. T-NETIX shall compensate Employee for the services
         rendered under this Agreement as follows:

                  (a) An annual base salary ("Base Salary") determined by the
Board in its discretion and consistent with its practices for executive officers
of T-NETIX, but not less than $190,000 per year, payable in equal monthly
installments (less applicable withholding) in accordance with the customary
payroll practices of T-NETIX for the payment of executive officers.



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<PAGE>   161



                  (b) If Employee's Base Salary is increased at any time, it
shall not thereafter be decreased during the term of this Agreement, unless such
decrease is the result of a general reduction affecting the base salaries of
substantially all other executive officers of T-NETIX.

                  (c) On the Effective Date and on each of the first two
anniversary dates of the Effective Date as long as Employee is still employed by
T-NETIX, T-NETIX shall grant to Employee options for 20,000 shares (60,000
shares in the aggregate) of T-NETIX's common stock with an exercise price equal
to the then fair market value of such common stock. Each such option shall vest
and be exercisable on the first anniversary of the date of grant if Employee is
continuously employed by T-NETIX to such date. In the event of a "Change of
Control" (as defined in Section 6) of T-NETIX any such options not yet granted
in accordance with this Section 3(c) shall be granted immediately prior to such
Change of Control at an exercise price equal to the exercise price for the
options last granted prior to this Section 3(c) and all Options granted pursuant
to this Section 3(c) shall immediately vest and be exercisable. The number of
options granted pursuant to this Section 3(c) will be adjusted to take account
of any recapitalization of T-NETIX that affects the number of shares of common
stock of T-NETIX outstanding, such as a stock split.

                  (d) Employee shall not be entitled to director's fees for his
service on any board of directors of any T-NETIX subsidiary.

4.       EMPLOYEE BENEFITS.

                  (a) Employee shall be entitled to full participation, on a
basis commensurate with his position with T-NETIX, in all plans of life,
accident, medical payment, health and disability insurance, Options, stock
grants, bonuses, retirement, pension, perquisites and other employee benefit and
pension plans which generally are made available to executive officers of
T-NETIX or its subsidiaries ("T-NETIX Benefits Plans"), except for such plans
which the Board, in its sole discretion, shall adopt for select employees to
compensate them for special or extenuating circumstances.

                  (b) Employee shall be entitled to an annual vacation leave at
full pay as may be provided for by T-NETIX's vacation policies applicable to
executive officers, but in any event such paid vacation shall not be less than
three weeks in the aggregate.

5.       TERMINATION AND RIGHTS UPON TERMINATION.

                  (a) Death, Total Disability, or Retirement. (i) This Agreement
shall automatically terminate upon the death, total disability, or retirement of
Employee.

                           (ii) Total disability shall be deemed to occur if, as
a result of his incapacity resulting from physical or mental illness or disease
(including alcohol or other substance addiction) which is likely to be
permanent, Employee shall have been unable to perform his duties hereunder for a
period of more than 120 consecutive days during any twelve-month period. The
Board will determine if Employee's termination is due to total and permanent
disability according to any long-term disability plan then in effect for senior
executives of T-NETIX, and otherwise in good faith consistent with generally
prevailing practices of employers.


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<PAGE>   162



                           (iii) Upon termination for Employee's death, T-NETIX
shall continue to pay Employee's salary to a legal representative previously
designated in writing by Employee (the "Legal Representative"), or if no such
designation has been made, to Employee's estate, for a period of twelve months
in monthly increments.

                           (iv) Upon termination for Employee's total
disability, T-NETIX shall continue to pay Employee's salary to the Legal
Representative (or if no designation has been made, to Employee or Employee's
other legal representative) and shall continue Employee's participation in all
T-NETIX Benefits Plans, for a period of the lesser of the remaining term of this
Agreement or six months.

                           (v) Upon termination for Employee's retirement at any
time after Employee reaches the age of 65, Employee's right to compensation
shall end and Employee shall not be entitled to continuation of salary.

                           (vi) Following any termination pursuant to this
Section 5(a), the Legal Representative or Employee, Employee's heirs,
administrator, or executor, as applicable, shall have a period of one year from
the date this Agreement is terminated to exercise any options previously granted
to Employee. All Options shall continue to vest during such one year period in
accordance with the vesting scheduled included as part of the grant of the
applicable Options.

                  (b) Termination For Cause. (i) T-NETIX may terminate this
Agreement at any time For Cause (as defined in the following sentence). A
Termination tor Cause means any of (A) the willful failure by Employee to follow
the reasonable instructions of the Board after written notice of such failure
has been given to Employee by the Board, (B) the willful commission by Employee
of acts that are dishonest, unethical, or inconsistent with local normal
business standards, (C) the commission by Employee of a felonious act, (D)
intentional wrongful disclosure of confidential information of T-NETIX, (E)
Employee's engagement in any competitive activity in violation of Section 14, or
(F) Employee's gross neglect of his duties.

                           (ii) Employee's right to compensation and
participation in T-NETIX Benefits Plans shall end and Employee shall not be
entitled to a severance payment if T-NETIX terminates this Agreement For Cause.

                  (c) Termination Without Cause. (i) T-NETIX may terminate this
Agreement at any time Without Cause, upon thirty days notice to Employee. The
termination of Employee's employment by T-NETIX for any reasons other than those
specified in Section 5(b)(i) shall be deemed a Termination Without Cause.

                           (ii) Upon Termination Without Cause other than
following a Change of Control. Employee will be entitled to a severance payment
equal to the amount of salary that would be payable to Employee through the term
of this Agreement at his then effective salary had he not been so terminated in
equal monthly installments through the third anniversary date of the Effective
Date.

                  (d) Resignation. (i) Employee may terminate this Agreement at
any time


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<PAGE>   163



upon thirty days written notice to T-NETIX. Employee's termination pursuant to
this Section 5(d) shall be deemed Resignation for Good Reason if such
resignation meets the criteria in part (ii) below; otherwise it shall be deemed
a Voluntary Resignation.

                           (ii) Resignation for Good Reason is defined as
Employee's resignation that (x) is not in connection with T-NETIX's Termination
For Cause and (y) is caused by, and within ninety days of, any of the following:

                                    (A) Without the express written consent of
Employee, any duties that are assigned which materially diminish Employee's
position, duties, or status.

                                    (B) Any transfer or proposed transfer of
Employee for a period of more than 120 days in any 365-day period to a location
outside Dallas County, Texas without his consent, except for strategic
reallocations of the personnel reporting to Employee or relocation of GTI's
headquarters.

                                    (C) Employee's Base Salary, as the same may
hereafter be increased from time to time, is reduced, except as permitted under
Section 3(c).

                                    (D) T-NETIX fails materially to comply with
any of its obligations under this Agreement.

                           (iii) Upon Resignation for Good Reason other than
following a Change of Control, Employee shall be entitled to a severance payment
equal to the lesser of (a) Employee's highest Base Salary during the twelve
month period prior to resignation or (b) the amount of salary Employee would
have been paid at his then current salary through the remaining term of this
Agreement in equal monthly installments over the twelve month period beginning
with the date of resignation or over the remaining term of this Agreement had it
not been terminated, as applicable.

                           (iv) In the event of Employee's Voluntary Resignation
other than in connection with a Change of Control, Employee's right to
compensation and participation in T-NETIX Benefits Plans shall end, and Employee
shall not be entitled to a severance payment.

                  (e) Termination Following a Chance of Control. Employee's
termination rights following a Change of Control are governed by the provisions
of Section 7.

                  (f) The provisions of Section 8, 10 and 11 shall apply to any
termination of this Agreement that is subject to the provisions of parts (c),
(d), or (e) of this Section 5.

                  (g) The severance payments provided in parts (c)(ii) and
(d)(iii) of this Section 5 are intended to be in lieu of and not in addition to
any payment to Employee on account of salary for the unexpired term of this
Agreement.

6.       DEFINITION OF CHANGE OF CONTROL. For the purposes of this Agreement, a
         Change of Control of T-NETIX shall be deemed to have taken place if one
         or more of the following occurs:


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<PAGE>   164




                  (a) Any person or entity, as that term is used in Section
13(d) and 14(d)(2) of the Securities Exchange Act of 1934 as amended (the
"Exchange Act"), other than (i) a qualified benefit plan of T-NETIX or of an
affiliate of T-NETIX; (ii) any person who is a stockholder or beneficial owner
of stock of the Effective Date (a "Current Stockholder"); (iii) any successor of
a Current Stockholder who acquires his shares by inheritance, devise, trust, or
operation of law directly from such Current Stockholder (a "Successor"); or (D)
any person or group of which Current Stockholders or Successors hold stock
representing an interest of one-third or more of the person's or group's total
stock, becomes a beneficial owner (as defined in Rule 13d-3 under the Exchange
Act as in effect on the date hereof) directly or indirectly of securities of
T-NETIX representing fifty per cent (50%) or more of the combined voting power
of T-NETIX's then outstanding securities.

                  (b) T-NETIX's shares are publicly traded, and individuals who,
as of the date immediately following the date T-NETIX shares are first publicly
traded, constitute the Board cease for any reason to constitute at least a
majority of the Board, unless any such change is approved by a unanimous vote of
the directors in office immediately prior to such cessation.

                  (c) T-NETIX shall (in a single transaction or a series of
related transactions) issue shares, sell or purchase assets, engage in a merger
or engage in any other transaction immediately after which securities of the
merged company representing fifty per cent (50%) or more of the combined voting
powers of the then outstanding securities of the merged company shall be
ultimately owned by persons who shall not have owned voting securities of
T-NETIX prior to such transaction or who shall be a party to such transaction.

                  (d) T-NETIX and its affiliates shall sell or dispose of (in a
single transaction or series of related transactions) business operations which
generated a majority of the consolidated revenues (determined on the basis of
T-NETIX's four most recently completed fiscal quarters) of T-NETIX and its
subsidiaries immediately prior thereto.

                  (e) The Board shall approve the distribution to T-NETIX's
shareholders of all or substantially all of T-NETIX's net assets or shall
approve the dissolution of T-NETIX.

                  (f) Any other transaction or series of related transactions
occur which have substantially the effect of the transactions specified in any
of the preceding clauses in this Section 6.

                  (g) Employee is terminated Without Cause within the period of
ninety days before an occurrence of a Change of Control or the execution of a
contract intended to effect a Change of Control (for purposes of this part (g)
the ninety day period shall be measured from the first event of any series of
events that constituted the Change of Control).

7.       RIGHTS UPON CHANGE OF CONTROL.

                  (a) If a Change of Control shall occur, Employee shall be
entitled to a severance payment, in an amount equal to the amount of salary at
his then current rate Employee would have been paid through the third
anniversary of the Effective Date had this Agreement not


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<PAGE>   165



been terminated in equal monthly installments through the third anniversary of
the Effective Date upon any termination (including Voluntary Resignation) of his
employment during the term of this Agreement and following the Change of
Control, other than Termination For Cause, death, permanent disability, or
retirement.

                  (b) The severance payment payable to Employee under part (a)
above shall not exceed the maximum payment which, after taking into account all
other compensation and benefits which may be payable to Employee, is permitted
to be deducted as compensation expense by T-NETIX and to be received by the
Employee without liability for the assessment of an excise tax on such payment
under the applicable provisions of the Internal Revenue Code. In the event of
any disagreement between the parties regarding the determination of the amount
under clause (i) or (ii) above (a "Section 7(b) Dispute"), the matter shall be
resolved by arbitration as provided in Section 16.

                  (c) If a Change of Control shall occur and Employee's
employment is terminated for any reason other than For Cause, death, permanent
disability, or retirement, (i) Employee shall have immediate vesting of all
options granted to Employee and full vesting in all other employee benefit plans
and compensation plans., and (ii) Employee shall have the right to "put" all or
any portion of vested options to T-NETIX for the difference between the option
exercise price and the higher of (W) the market price of T-NETIX's stock (if
such stock is publicly traded) at the date of the "put" or (X) the aggregate
consideration per share received by T-NETIX or its stockholders for T-NETIX's
common stock in the transaction which resulted in a Change of Control.
Employee's right to "put" vested options to T-NETIX shall exist for the period
ending thirty days from the date of the Change of Control.

                  (d) Notwithstanding any other provision of this Section 7, if
following a Change of Control, (i) the person acquiring control of T-NETIX (the
"Corporate Successor") assumes T-NETIX's obligations under this Agreement and is
not in default hereunder for a period equal to the lesser of two years following
the Change of Control or the remaining term of this Agreement (the "Post-Change
of Control Period"), and (ii) Employee remains in the employ of the Corporate
Successor for the Post-Change of Control Period, then Employee shall forfeit his
rights under this Section 7 with respect to such Change of Control. Employee's
rights shall continue to be governed by this Agreement and the provisions of
Sections 5(e) and 7 shall remain in force with respect to any subsequent Change
of Control.

8.       OTHER SEVERANCE BENEFITS.

                  (a) If at any time during the term of this Agreement, Employee
is Terminated Without Cause, or Employee is terminated following a Change of
Control as provided in Section 7, or Employee Resigns for Good Reason, then
Employee shall be entitled to continuation, without any payment by Employee, of
T-NETIX Benefits Plans until the first to occur of (i) one year after
termination, (ii) the date Employee secures new employment, or (iii) the third
anniversary of the Effective Date.

                  (b) If at any time during the term of this Agreement, Employee
is Terminated Without Cause, or Employee is terminated following a Change of
Control as provided in Section 7, or Employee resigns for Good Reason, T-NETIX
shall promptly (and in any event


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<PAGE>   166



within five business days after a request by Employee therefor) pay directly or
reimburse Employee for the costs and expenses of any executive outplacement firm
selected by Employee; provided, however, that T-NETIX's liability hereunder
shall be limited to the first $20,000 of such expenses incurred by Employee.
Employee shall provide T-NETIX with reasonable documentation of the incurrence
of such outplacement costs and expenses.

9.       TIMING OF PAYMENT. The parties agree that, in the event this Agreement
         is terminated following a Change of Control, damages for delay in
         T-NETIX's paying Employee any amounts due hereunder on the date
         required under Section 7 may be difficult to ascertain precisely.
         T-NETIX and Employee therefore agree that in such event, if the
         aggregate amount not paid on any required date exceeds five per cent
         (5%) of the total amount due to Employee pursuant to parts (a) and (c)
         of Section 7, Employee shall be entitled to an additional payment, as
         liquidated damages and not as a penalty, an amount equal to (i) the sum
         of the amounts due Employee under parts (a) and (c) of Section 7,
         assuming that Employee had "put" all vested Options to T-NETIX within
         the required time period, (ii) divided by 365 (such calculation is the
         "Daily Pay"), for each day fill payment is delayed. Employee's
         entitlement to Daily Pay pursuant to this Section 9(b) shall not affect
         Employee's right to prejudgment interest in any arbitration, if such
         interest is awarded by the arbitrator

10.      OTHER BENEFITS. The provisions of Section 7 and 8 shall not affect
         Employee's participation in, or termination of distributions and vested
         rights under, any T-NETIX Benefits Plan to which Employee is entitled
         pursuant to the terms of such plan, except as otherwise expressly
         provided in Sections 5, 7 and 8(a).

11.      NO DUTY TO MITIGATE DAMAGES. In the event of termination of this
         Agreement as a result of (a) Employee's termination following a Change
         of Control, (b) Employee's Termination Without Cause, or (c) Employee's
         Resignation for Good Reason, Employee shall not be required to seek
         other employment in order to mitigate his damages hereunder, and no
         compensation Employee does earn after any termination shall be
         considered to mitigate damages Employee has incurred or to reduce any
         payment T-NETIX is obligated to make to Employee pursuant to this
         Agreement, except as specifically provided in Section 8(a).

12.      NO RIGHT TO SET OFF. T-NETIX shall not be entitled to set off against
         the amount payable to Employee any amounts earned by Employee from
         other employment after termination of his employment with T-NETIX or
         any amounts which might have been earned by Employee in other
         employment had he sought such other employment, except as specifically
         provided in Section 8(a). The amounts payable to Employee under this
         Agreement shall not be treated as damages but as severance compensation
         to which Employee is entitled by reason of termination of this
         employment in the circumstances contemplated by this Agreement.

13.      NON-DISCLOSURE AGREEMENT.

                  (a) In connection with his employment with T-NETIX, Employee
will have access to and become acquainted with various trade secrets and other
proprietary and confidential information of T-NETIX. "Trade secrets and other
proprietary and confidential information"


                                      - 7 -

<PAGE>   167



include but are not limited to the following: (1) business, pricing, marketing
and cost data; (2) technical information regarding T-NETIX's products; (3)
confidential customer information; (4) customer and supplier lists; (5) contents
of contracts and agreements with customers; and (6) customer requirements and
specifications. Employee acknowledges that T-NETIX has taken steps to keep trade
secrets and other proprietary and confidential information secret, including
disclosing the information only on a need-to-know basis, labeling documents as
"confidential," and keeping confidential information in secure areas. Employee
further acknowledges that the trade secrets and other proprietary and
confidential information have been developed or acquired by T-NETIX through
expenditure of substantial time, effort and money and provide T-NETIX with an
advantage over competitors who do not know or use such trade secrets and other
proprietary and confidential information.

                  (b) In consideration for access to trade secrets and other
proprietary and confidential information, Employee agrees that during the
Noncompetition Period (as defined in Section 14) he will not directly or
indirectly disclose or use for any reason whatsoever any trade secrets and other
proprietary and confidential information obtained by him by reason of his
employment with T-NETIX, except as required to conduct the business of T-NETIX
or as authorized by express written permission of the Board or as otherwise
required by law.

                  (c) Employee confirms that all trade secrets and other
proprietary and confidential information, and all documents reflecting such
information, remain the exclusive property of T-NETIX. All business records,
papers and documents kept or made by Employee relating to the business of
T-NETIX shall be and remain the property of T-NETIX and shall remain in the
possession of T-NETIX during the term of Employee's employment and at all times
thereafter. Upon the termination of his employment with T-NETIX or upon the
request of T-NETIX at any time, Employee shall promptly deliver to T-NETIX, and
shall retain no copies of, any materials, records and documents (in whatever
form or medium) made by Employee or coming into his possession concerning the
business or affairs of T-NETIX.

                  (d) Employee acknowledges and agrees that the nature of the
trade secrets and other proprietary and confidential information to which he
will be given access would make it impossible for him to perform in the capacity
of officer, director, employee, agent, consultant, or representative of any
Competitor (as defined in Section 14) without disclosing or utilizing the trade
secrets and other proprietary and confidential information to which he will be
given access during the course of his employment. Employee further acknowledges
and agrees that T-NETIX's products are marketed in a highly competitive market.

14.      NON-COMPETITION AGREEMENT. In consideration for access to trade secrets
         and other proprietary information of T-NETIX, for so long as Employee
         is employed by T-NETIX and for a period of three years thereafter (the
         "Noncompetition Period"), Employee will not:

                           (a) accept a position as an officer, director,
employee, agent, consultant, representative of (i) any other proprietary call
processing systems company or (ii) any other entity that, as of the date of
Employee's termination, competes directly with T-NETIX or any of its
subsidiaries (an entity described in either part (i) or (ii) is referred to in
this Agreement as a "Competitor");


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<PAGE>   168



                           (b) acquire or fail to dispose of any stock or other
ownership interest in any Competitor, other than investments equal to less than
one per cent of the outstanding stock of any class issued by any publicly traded
company;

                           (c) solicit or seek business from any of GTI's
customers, prospective customers, suppliers, or prospective suppliers; or

                           (d) hire or engage any T-NETIX employee or induce any
T-NETIX employee to leave his or her employment with T-NETIX on behalf of any
Competitor.

15.      REMEDIES.

                  (a) Without intending to limit the remedies available to
T-NETIX, Employee acknowledges that a breach or threatened breach of any of the
covenants contained in Sections 13 and 14 may result in material irreparable
injury to T-NETIX or one of its subsidiaries for which there is no adequate
remedy at law, that it may not be possible to measure damages for such injuries
precisely, and that in the event of such a breach or threat thereof, T-NETIX
shall be entitled to obtain a temporary restraining order, a preliminary or
permanent injunction, or other comparable provisional or equitable relief
restraining Employee from engaging in activities prohibited by Sections 13 or
14, and such other relief as may be required to enforce specifically any of the
covenants in such Sections. Employee agrees to personal jurisdiction of any
state or federal court in the State of Texas in any proceeding brought by
T-NETIX to enforce Employee's covenants under Sections 13 and 14.

                  (b) Without limiting the relief specified in part (a) above,
and in addition to any other remedies available hereunder, at law, or in equity,
upon proof of Employee's deliberate violation of his obligations under Section
13 or 14, T-NETIX shall be entitled to recover from Employee (i) any severance
paid pursuant to Section 5 or 7(a), and (ii) amounts paid to Employee under
Section 7(c)(ii).

16.      ARBITRATION.

                  (a) Any dispute or controversy arising under or in connection
with this Agreement shall be settled exclusively by arbitration before a single
arbitrator in Dallas County, Texas, in accordance with the rules of the American
Arbitration Association then in effect. The arbitrator shall be selected by the
American Arbitration Association, except that in a Section 7(b) Dispute the
arbitrator shall be selected in the manner provided in part (b) below. Each
parry shall bear his or its own costs of arbitration, except that if Employee is
the prevailing party in such arbitration, he shall be entitled to recover from
T-NETIX as part of any award entered his reasonable expenses for attorneys and
experts fees and disbursements. In any arbitration related to the calculation of
the amount of the severance pay due to employee, each party shall submit a
figure and supporting documentation and the arbitrator shall select the figure
submitted by one of the parties, but no other figure. The arbitrator shall have
no power to award consequential or punitive damages, even if such damages are
permitted under applicable law.

                  (b) In a Section 7(b) Dispute T-NETIX shall nominate a
proposed arbitrator, who may be the lawyer who represented T-NETIX in the
transaction that caused the Change in


                                      - 9 -

<PAGE>   169



Control. Within five days after T-NETIX's nomination, Employee may accept
T-NETIX's nominee as arbitrator, or may propose another lawyer. If T-NETIX
accepts Employee's counter- nominee, that lawyer shall serve as arbitrator. If
T-NETIX does not accept Employee's counter- nominee, Employee's counter-nominee
and T-NETIX's nominee shall select a third lawyer, who shall serve as
arbitrator.

                  (c) Nothing in this Section 16 shall prevent T-NETIX from
seeking equitable relief pursuant to Section 15.

17.      NOTICES. All notices, requests, demands and other communication called
         for or contemplated hereunder shall be in writing and shall be deemed
         to have been duly given when delivered personally or when mailed by
         United States certified or registered mail, postage prepaid, addressed
         to the parties, their successors in interest or assignees at the
         following addresses or such other addresses as the parties may
         designate by notice in the manner aforesaid:

                  If to T-NETIX:   T-NETIX, Inc.
                                   67 Inverness Drive East, Suite 100
                                   Englewood, Colorado 80112
                                   Attention: Alvyn A. Schopp

                  If to Employee:  Gateway Technologies, Inc.
                                   1544 Valwood Parkway, Suite 102
                                   Carrollton, Texas 75006
                                   Attention: Richard E. Cree

18.      GOVERNING LAW. This Agreement shall be governed by and construed in
         accordance with the laws of the State of Texas without giving effect to
         any principle of conflict-of-laws chat would require the application of
         the law of any other jurisdiction.

19.      VALIDITY. The invalidity or unenforceability of any provision or
         provisions of this Agreement shall not affect the validity or
         enforceability of any other provision of this Agreement, remain in full
         force and effect.

20.      ENTIRE AGREEMENT. This Agreement constitutes the entire understanding
         between the parties with respect to the subject matter hereof,
         superseding all negotiations, prior discussions and preliminary
         agreements, and further superseding any and all employment arrangements
         between Employee and T-NETIX or any of T-NETIX's subsidiaries,
         affiliates or other related entities. This Agreement may not be amended
         except in a writing executed by the parties hereto.

21.      EFFECT ON SUCCESSORS IN INTEREST. This Agreement shall inure to the
         benefit of and be binding upon the heirs, administrators, executors and
         successors of each of the parties hereto. T-NETIX shall be in material
         breach of this Agreement if any of its successors or assigns (including
         but not limited to any Corporate Successor) fails expressly to assume
         T-NETIX's obligations hereunder



                                     - 10 -

<PAGE>   170



22.      ASSIGNMENT. This Agreement is personal to Employee and Employee may not
         assign this Agreement to any other person.

23.      EFFECTIVENESS. This Agreement shall be effective upon the Effective
         Date.

24.      Waiver of Rights Under Current Agreement. If and when the Merger is
         consummated and in consideration for this Agreement, Employee waives
         any rights he may have to severance and other benefits he may have
         under his current employment agreement with GTI including, but not
         limited to, his rights upon the change of control of GTI resulting from
         the Merger.

25.      SURVIVAL OF SECTION. The provisions of Sections 13 and 14 of this
         Agreement shall survive the termination of this Agreement for the
         period provided for therein, and Sections 15 and 16 shall survive for
         resolution of any dispute arising out of or relating to this Agreement.

         IN WITNESS WHEREOF, the parties hereto have executed and delivered this
Agreement as of the date first above written.


T-NETIX, INC.                              EMPLOYEE


BY:
   --------------------------------        ---------------------------------
                                           Richard E. Cree



                                     - 11 -

<PAGE>   171



                                    EXHIBIT E


                            NON-COMPETITION AGREEMENT


         THIS NON-COMPETITION AGREEMENT (this "Non-Competition Agreement") is
entered into as of ___________, 1999 (the "Effective Date"), by and between [W.
P. Buckthall] [Irvin Wall] [James B. Franklin] ("Gateway Shareholder Signatory")
and T-NETIX, Inc., a Colorado corporation ("T-NETIX").

         WHEREAS, concurrently with the execution and delivery of this
Non-Competition Agreement, pursuant to that certain Agreement and Plan of Merger
dated as of __________, 1999 (the "Agreement") by and among T-NETIX, T-NETIX
Acquisition Corp. ("TAC"), a Colorado corporation and a wholly owned subsidiary
of T-NETIX, and Gateway Technologies, Inc., a Texas corporation ("Gateway") and
the Gateway Shareholder Signatory, among others, by which TAC will merge with
and into Gateway under the terms and conditions contained therein, and

         WHEREAS, as a condition to and in connection with the Agreement,
T-NETIX has required Gateway Shareholder Signatory to enter into a covenant not
to compete with T-NETIX or its subsidiaries including future parents or
subsidiaries (collectively, the "T-NETIX Entities"), upon the terms and
conditions set forth in this Non-Competition Agreement.

         NOW, THEREFORE, in consideration of the mutual covenants and agreements
set forth herein and the Merger Consideration as defined in the Agreement paid
to Gateway Shareholder Signatory the parties hereto agree as follows:

1.       Non-Compete; Non-Solicitation.

         (a) For purposes of this Non-Competition Agreement:

                  (i) The "Non-Competition Period" commences on the date of this
Non- Competition Agreement and continues until the third anniversary of the
Effective Date.

                  (ii) "Restricted Area" means the United States of America.

                  (iii) "Competitive Operation" means any entity that engages in
or owns, invests in, manages or controls any venture or enterprise engaged in
the business of providing inmate calling equipment and services.

                  (iv) "Competition" means the direct or indirect ownership,
management (either as an employee or consultant) or control of a Competitive
Operation.

                  (v) "Customer" shall include any individual, organization or
entity from whom a T-NETIX Entity or Gateway has received an order or fee for
inmate calling equipment or


                                      - 1 -

<PAGE>   172



inmate calling services produced (including any formal request or submission for
proposal) at any time within the twenty-four (24) month period preceding the
Effective Date.

                  (vi) "Competitive Business" means the business of providing
inmate calling equipment and services.

         (b) Gateway Shareholder Signatory agrees that during the
Non-Competition Period, Gateway Shareholder Signatory shall not, directly or
indirectly:

                  (i) engage in Competition in the Restricted Area.

                  (ii) (A) induce or attempt to induce or aid others in inducing
an employee of a T-NETIX Entity to leave the employ of a T-NETIX Entity, or in
any way interfere with the relationship between the T-NETIX Entities and their
employees, or (B) induce or attempt to induce any person or entity that to the
Gateway Shareholder Signatory"s knowledge is a Customer, vendor, subcontractor
or other business relation of a T-NETIX Entity to cease doing business with a
T-NETIX Entity, or in any way interfere with the relationship between any
Customer, vendor, subcontractor or other business relation and a T-NETIX Entity.

                  (iii) (A) introduce any Competitive Operation to any person or
entity that to the Gateway Shareholder Signatory's knowledge is a past or
present Customer, vendor, subcontractor or other business relation of a T-NETIX
Entity, (B) solicit business for any Competitive Operation from past, present or
prospective Customers, vendors, subcontractors or other business relations of a
T-NETIX Entity, or (C) accept employment from any past or present Customer,
vendor, subcontractor or other business relation of a T-NETIX Entity, unless
such employment shall be unrelated to a Competitive Operation or otherwise
expressly permitted pursuant to this Non-Competition Agreement.

         (c) Nothing herein shall prohibit Gateway Shareholder Signatory from
being a passive owner of not more than 5% of the outstanding stock of any class
of securities of a Competitive Operation which is publicly traded, so long as
Gateway Shareholder Signatory has no active participation in the business of
such Competitive Operation.

         (d) Notwithstanding the prohibitions contained in this Non-Competition
Agreement, Gateway Shareholder Signatory may render services for a
noncompetitive division, affiliate or portion of a Competitive Operation so long
as no such services are provided by Gateway Shareholder Signatory to, or used
by, any other division, affiliate or portion of such Competitive Operation which
is engaged in a Competitive Business.

         (e) If, at the time of enforcement of this Non-Competition Agreement, a
court shall hold that the duration, scope, area or other restrictions stated
herein are unreasonable under circumstances then existing, the parties agree
that the maximum duration, scope, area or other restrictions reasonable under
such circumstances shall be substituted for the stated duration, scope, area or
other restrictions.

         (f) The Gateway Shareholder Signatory will, while the covenant under
this Non- Competition Agreement is in effect, give notice to T-NETIX, within ten
days after accepting any


                                      - 2 -

<PAGE>   173



other employment, of the identity of the Gateway Shareholder Signatory's
employer that may be engaged in Competitive Operations. T-NETIX may notify such
employer that the Gateway Shareholder Signatory is bound by this Non-Competition
Agreement and, at T-NETIX's election, furnish such employer with a copy of this
Non-Competition Agreement or relevant portions thereof.

         (g) The existence of any claim or cause of action of Gateway
Shareholder Signatory against T-NETIX, or any of its respective affiliates,
whether or not predicated upon the terms of this Non-Competition Agreement,
shall not constitute a defense to the enforcement of this covenant.

2. [Reserved].

3. Representation. Gateway Shareholder Signatory represents and warrants to
T-NETIX that the execution and delivery of this Non-Competition Agreement does
not conflict with, or result in the breach by Gateway Shareholder Signatory or
violation by Gateway Shareholder Signatory of, any other agreement to which
Gateway Shareholder Signatory is a party or by which Gateway Shareholder
Signatory is bound.

4. Remedies. The parties hereto agree that T-NETIX would suffer irreparable harm
from a breach by Gateway Shareholder Signatory of any of the covenants or
agreements contained herein. Therefore, in the event of the actual or threatened
breach by Gateway Shareholder Signatory of any of the provisions of this
Non-Competition Agreement, T-NETIX may, in addition and supplementary to other
rights and remedies existing in their favor, apply to any court of law or equity
of competent jurisdiction for specific performance and/or injunctive or other
equitable relief in order to enforce or prevent any violation of the provisions
hereof.

5. Successors and Assigns. This Non-Competition Agreement shall be binding upon
and inure to the benefit of T-NETIX, its parents, affiliates, successors and
assigns, and shall be binding upon Gateway Shareholder Signatory and Gateway
Shareholder Signatory's legal representatives and assigns. T-NETIX may assign
or transfer its rights hereunder to a successor corporation in the event of
merger, consolidation or transfer or sale of all or substantially all of the
assets of T-NETIX. Nothing herein expressed or implied is intended or shall be
construed to confer upon or give to any person or entity, other than the parties
to this Non-Competition Agreement and the T-NETIX Entities, and their respective
permitted successors and assigns, any rights or remedies under or by reason of
this Non-Competition Agreement.

6. Modification or Waiver. No amendment, modification, waiver, termination or
cancellation of this Non-Competition Agreement shall be binding or effective for
any purpose unless it is made in a writing signed by the party against whom
enforcement of such amendment, modification, waiver, termination or cancellation
is sought. No course of dealing between or among the parties to this
Non-Competition Agreement shall be deemed to affect or to modify, amend or
discharge any provision or term of this Non-Competition Agreement. No delay on
the part of T-NETIX or Gateway Shareholder Signatory in the exercise of any of
their respective rights or remedies shall operate as a waiver thereof, and no
single or partial exercise by T-NETIX or Gateway Shareholder Signatory of any
such right or remedy shall preclude other or further exercise thereof.


                                      - 3 -

<PAGE>   174



A waiver of right or remedy on any one occasion shall not be construed as a bar
to or waiver of any such right or remedy on any other occasion.

7. Severability. Whenever possible each provision and term of this
Non-Competition Agreement shall be interpreted in such manner as to be effective
and valid under applicable law, but if any provision or term of this
Non-Competition Agreement shall be held to be prohibited by or invalid under
such applicable law, then such provision or term shall be ineffective only to
the extent of such prohibition or invalidity, without invalidating or affecting
in any manner whatsoever the remainder of such provisions or term or the
remaining provisions or terms of this Non-Competition Agreement.

8. Counterparts. This Non-Competition Agreement may be executed simultaneously
in two or more counterparts, each of which shall be deemed an original but all
of which together shall constitute one and the same agreement.

9. Non-Competition Agreement. This Non-Competition Agreement (together with all
documents and instruments referred to herein) constitute the entire agreement
and supersede all other prior agreements and undertakings, both written and
oral, among the parties with respect to the subject matter hereof.

10. Notices. Any notices, consents or other communication required to be sent or
given hereunder by any of the parties shall in every case be in writing and
shall be deemed properly served if (a) delivered personally, (b) sent by
registered or certified mail, in all such cases with first class postage
prepaid, return receipt requested, (c) delivered by a recognized overnight
courier service, or (d) sent by facsimile transmission to the parties at the
addresses as set forth below or at such other addresses as may be furnished in
writing.


   To T-NETIX:     T-NETIX, Inc.
                   67 Inverness Drive East, Suite 100
                   Englewood, CO 80112

   To Gateway Shareholder Signatory:  To the last address reflected on the 
                                      records of Gateway, unless otherwise 
                                      provided in writing to T-NETIX pursuant 
                                      to this Section 10.

Date of service of such notice shall be (w) the date such notice is personally
delivered, (x) three business days after the date of mailing if sent by
certified or registered mail, (y) one business day after date of delivery to the
overnight courier if sent by overnight courier or (z) the next succeeding
business day after transmission by facsimile.

11. Construction. The parties understand and acknowledge that they have each
been represented by (or have had the opportunity to be represented by) counsel
in connection with the preparation, execution and delivery of this
Non-Competition Agreement. This Non-Competition Agreement shall not be construed
against any party for having drafted it. All words used in this Non-Competition
Agreement will be construed to be of such gender or number as the circumstances
require. Unless otherwise expressly provided, the word "including" does not
limit the preceding words or terms.


                                      - 4 -

<PAGE>   175



         IN WITNESS WHEREOF, the undersigned have executed this Non-Competition
Agreement as of the date first above written.

                                   T-NETIX, INC., a Colorado corporation


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

                                   Gateway Shareholder Signatory



                                   --------------------------------------------


                                      - 5 -

<PAGE>   176



                                    EXHIBIT F

                         INVESTOR REPRESENTATION LETTER




T-NETIX, Inc.
67 Inverness Drive East, Suite 100
Englewood, Colorado  80112

Dear Sirs:

         In connection with the acquisition (the "Acquisition") of Gateway
Technologies, Inc., a Texas corporation ("Gateway"), by T-NETIX, Inc., a
Colorado corporation ("T-NETIX"), through the merger of T-NETIX Acquisition
Corp. ("TAC"), a Colorado corporation and wholly owned subsidiary of T-NETIX,
with and into Gateway, I, being a holder of certain shares of common stock of
Gateway, par value $1.00 per share ("Gateway Stock"), am entitled to receive
certain shares of common stock of T-NETIX, stated value $0.01 per share
("T-NETIX Stock"), pursuant to and in accordance with that certain Agreement and
Plan of Merger dated February 10, 1999 (the "Agreement"), by and among Gateway,
T-NETIX, TAC and certain shareholders of Gateway and T-NETIX. Capitalized terms
used but not defined herein shall have the meanings given them in the Agreement.

         I acknowledge that the T-NETIX Stock to be issued to me upon
consummation of the Acquisition will not be registered under the Securities Act
of 1933, as amended (the "Securities Act"), as of its date of issue, but instead
will be issued under an exemption from registration. (T-NETIX is, however,
obligated to register the T-NETIX Stock within 180 days after the Effective Time
in accordance with the provisions set forth in the Agreement.) I acknowledge
that such exemption from registration is legally permissible only if each
Gateway Shareholder is either an "Accredited Investor," as that term is defined
under federal securities laws, or a "Sophisticated Investor," as that term is
defined below. For purposes of confirming that I am either an Accredited
Investor or a Sophisticated Investor, be advised that (check applicable boxes):

[ ]      I have an individual net worth, or joint net worth with my spouse, in 
         excess of $1,000,000.

[ ]      I have had an individual income in excess of $200,000 in each of the
         last two years or joint income with my spouse in excess of $300,000 in
         each of the last two years and reasonably expect reaching the same
         income level this year.

[ ]      I am a director or executive officer of Gateway.

[ ]      I am subscribing on behalf of a trust, with total assets in excess of
         $5,000,000, not formed for the specific purpose of acquiring the
         securities offered, whose purchase is directed by a sophisticated
         person as described in Rule 506(b)(2)(ii) of Regulation D under the
         Securities Act of 1933.



                                      - 1 -

<PAGE>   177



[ ]      I am subscribing on behalf of an entity in which all of the equity
         owners are Accredited Investors.

[ ]      I am a "Sophisticated Investor" in that, either alone or with the
         advisors I used in connection with this transaction who were not
         directly or indirectly affiliated with or compensated by T-NETIX, I
         have such knowledge and experience in financial and business matters
         that I am capable of evaluating the merits and risks of the prospective
         investment in the T-NETIX Stock.

         I hereby covenant with T-NETIX that I will not sell, assign or transfer
any of the shares of T-NETIX Stock received by me in exchange for shares of
Gateway Stock in connection with the Acquisition (other than to T-NETIX) except
(i) pursuant to an effective registration statement under the Securities Act, or
(ii) in conformity with the volume and other limitations of Rule 144 promulgated
pursuant to the Securities Act or another exemption from the registration
provisions of the Securities Act, which exemption shall be established to the
satisfaction of the general counsel of T-NETIX or other counsel reasonably
satisfactory to T-NETIX (as shown by an opinion of such counsel), or shall be
described in a "no-action" or interpretive letter from the Staff of the
Securities and Exchange Commission ("SEC") specifically issued with respect to
the transaction to be engaged in by me.

         I agree that until my shares have been registered under an effective
registration statement under the Securities Act, T-NETIX may instruct its
transfer agent to withhold the transfer of any shares of T-NETIX Stock to be
transferred by me. Provided such transfer is not prohibited by any other
provision of this letter agreement, upon receipt of evidence of compliance with
Rule 144 or another exemption from the registration provisions of the Securities
Act, as described above, T-NETIX shall cause the transfer agent to effectuate
the proposed transfer of the shares of T-NETIX Stock.

         I acknowledge and agree that the legends set forth below will be placed
on certificates representing the T-NETIX Stock received by me in connection with
the Acquisition or held by a transferee from me, which legends will be removed
by delivery of substitute certificates upon receipt by T-NETIX of an opinion in
form and substance reasonably satisfactory to T-NETIX from counsel reasonably
satisfactory to T-NETIX to the effect that such legends are no longer required
for purposes of the Securities Act:

         The shares represented by this certificate were issued in a transaction
         to which Rule 144 promulgated under the Securities Act of 1933 applies.
         The shares have not been acquired by the holder with a view to, or for
         resale in connection with, any distribution thereof within the meaning
         of the Securities Act of 1933. The shares may not be sold, pledged or
         otherwise transferred except in accordance with an exemption from the
         registration requirements of the Securities Act of 1933 or pursuant to
         an effective registration statement under the Securities Act of 1933.

         I represent and warrant to T-NETIX that: (a) I have full right and
power to execute and deliver this letter agreement, and this letter has been
duly executed and delivered by me; and (b) I am acquiring the T-NETIX Stock
solely for the purpose of investment and, except as set forth in the Agreement,
not with a view to, or for sale in connection with, any distribution thereof.


                                            Very truly yours,


                                            -----------------------------------


                                      - 2 -

<PAGE>   178


                                    EXHIBIT G



                             ________________, 1999



The Shareholders of
Gateway Technologies, Inc.
1544 Valwood Parkway, Suite 102
Carrollton, TX 75006

Ladies and Gentlemen:

         We have acted as counsel to T-NETIX, Inc., a Colorado corporation
("T-NETIX"), and T-NETIX Acquisition Corporation ("TAC"), a Colorado corporation
and a wholly owned subsidiary of T-NETIX, in connection with the merger of TAC
with and into Gateway Technologies, Inc., a Texas corporation ("Gateway"),
pursuant to that certain Agreement and Plan of Merger dated February 10, 1999
("Agreement"), and related documents (the "Acquisition Documents"). We have been
requested by T-NETIX and TAC to render this opinion pursuant to Section 8.2 of
the Agreement. Unless defined in this opinion, capitalized terms are used herein
as defined in the Agreement.

         In connection with this opinion, we have reviewed the Acquisition
Documents. We have also examined originals or copies of such corporate records,
agreements, documents, and other instruments and such certificates or comparable
documents of public officials and of officers and representatives of T-NETIX and
TAC and have made such inquiries of such officers and representatives as we have
deemed necessary and relevant for purposes of this opinion. We have assumed (a)
the genuineness of all signatures (other than those of T-NETIX and TAC), (b) the
authenticity of all documents and records submitted to us as originals, (c) the
conformity to original documents and records of all documents and records
submitted to us as copies (including conformed copies), and (d) the truthfulness
of all statements of fact contained therein.

         Based on the foregoing and subject to the limitations and assumptions
set forth in this opinion, and having due regard for such legal considerations
as we deem relevant, we are of the opinion that:

1.       T-NETIX and TAC are corporations duly organized, validly existing, and
         in good standing under the laws of Colorado.

2.       T-NETIX and TAC have the full corporate power and authority to execute
         the Acquisition Documents to which they are parties and to perform the
         obligations contemplated thereby. The execution and delivery by T-NETIX
         and TAC of the Acquisition Documents to which T-NETIX and TAC are
         parties have been authorized by all necessary corporate action on
         behalf of T-NETIX and TAC. Each Acquisition Document has been duly
         executed and delivered by T-NETIX and TAC and constitutes


                                      - 1 -

<PAGE>   179


         the legal, valid, and binding obligation of T-NETIX and TAC enforceable
         in accordance with its terms, except as such enforcement may be limited
         by applicable bankruptcy, insolvency, fraudulent transfer,
         reorganization, moratorium or similar laws relating to or affecting the
         enforcement of creditors' rights generally, and by general principles
         of equity.

3.       Neither the execution and delivery by T-NETIX and TAC of, nor the
         performance by T- NETIX and TAC of their rights under, the Acquisition
         Documents violate or conflict with, result in a breach of, or
         constitute a default under T-NETIX's and TAC's Certificate of
         Incorporation or Bylaws, or any law, judgment, decree, or under order
         of any court or any other agency of government applicable to T-NETIX or
         TAC or T-NETIX's or TAC's property, or any material agreement to which
         T-NETIX and TAC are parties or by which T-NETIX's and TAC's property is
         bound.

4.       No approvals or authorizations by, or filing or qualifications with,
         any state, federal, or local agency, authority, or body are required in
         connection with the execution, delivery, and performance of the
         Acquisition Documents or any other agreements or documents executed and
         delivered pursuant thereto by T-NETIX and TAC, except such as have been
         duly obtained or made.

5.       There is no action, suit, investigation, or proceeding that is pending
         or, to the best of our knowledge, threatened against or affecting
         T-NETIX or TAC in any court or before any governmental authority,
         arbitration board, or tribunal that restrains or prevents, or seeks to
         restrain or prevent, the consummation of the transactions contemplated
         by the Acquisition Documents or seeks other material relief with
         respect to such transactions.

6.       The T-NETIX common stock issued pursuant to the Acquisition Documents,
         when so issued for the consideration therein set forth, shall
         constitute duly authorized, validly issued, fully paid and
         non-assessable shares of the capital stock of T-NETIX and TAC.

         We express no opinion as to the law of any jurisdiction other than the
federal law of the United States and the law of the State of Colorado. Our
opinion is given as if the laws of the State of Colorado, without regard to its
conflict of laws provisions, govern the Acquisition Documents.

         This opinion may be relied upon by you only in connection with the
consummation of the transactions described herein and may not be used or relied
upon by you or any other person for any other purpose, without in each instance
our prior written consent.

         This opinion is limited to the matters expressly stated herein. No
implied opinion may be inferred to extend this opinion beyond the matters
expressly stated herein. We do not undertake to advise you or anyone else of any
changes in the opinions expressed herein resulting from changes in law, changes
in facts or any other matters that hereafter might occur or be brought to our
attention.

                                     Very truly yours,

                                     ROTHGERBER JOHNSON & LYONS LLP



                                      - 2 -




<PAGE>   180
                                   APPENDIX B


                                February 10, 1999


Board of Directors
T-NETIX, Inc.
67 Inverness Drive East
Englewood, CO  80112

Dear Members of the Board:

We understand that T-NETIX, Inc. ("T-NETIX"), T-NETIX Acquisition Corp., a
wholly owned subsidiary of T-NETIX ("Acquisition"), Gateway Technologies, Inc.
("Gateway" or the "Company") and certain shareholders of T-NETIX and Gateway,
respectively, propose to enter into an Agreement and Plan of Merger (the
"Agreement") pursuant to which, through the merger of Acquisition with and into
Gateway (the "Merger"), each share of Gateway common stock ("Gateway Stock"),
shall be converted into the right to receive 5.0375 shares (the "Merger
Consideration") of T-NETIX common stock ("T-NETIX Stock"). The Merger is
intended to be a tax-free reorganization within the meaning of section 368(a) of
the United States Internal Revenue Code of 1986, as amended, and to be accounted
for as a pooling of interests pursuant to Opinion No. 16 of the Accounting
Principles Board. The terms and conditions of the above described Merger are
more fully detailed in the Agreement.

You have requested our opinion as to whether the Merger Consideration is fair,
from a financial point of view, to T-NETIX shareholders.

Broadview International LLC ("Broadview") focuses on providing merger and
acquisition advisory services to information technology ("IT") companies. In
this capacity, we are continually engaged in valuing such businesses, and we
maintain an extensive database of IT mergers and acquisitions for comparative
purposes. We are currently acting as financial advisor to T-NETIX's Board of
Directors and will receive a fee from T-NETIX upon the successful conclusion of
the Merger.

In rendering our opinion, we have, among other things:

1.)      reviewed the terms of the Agreement and the associated exhibits thereto
         in the form of the draft dated February 9, 1999 furnished to us by
         legal counsel to T-NETIX on February 9, 1999 (which, for the purposes
         of this opinion, we have assumed, with your permission, to be identical
         in all material respects to the agreement to be executed);

2.)      reviewed the audited financial statements of Gateway for its fiscal
         years ended December 31, 1997 and 1996 and the unaudited financial
         statements of Gateway for the eleven months ended November 30, 1998;


<PAGE>   181



         

3.)      reviewed certain internal financial and operating information,
         including certain projections, relating to Gateway prepared by Gateway
         management;

4.)      participated in discussions with Gateway management concerning the
         operations, business strategy, financial performance and prospects for
         Gateway;

5.)      discussed with Gateway management its view of the strategic rationale 
         for the Merger;

6.)      compared certain aspects of the financial performance of Gateway with
         public companies we deemed comparable;

7.)      analyzed available information, both public and private, concerning
         other mergers and acquisitions we believe to be comparable in whole or
         in part to the Merger;

8.)      reviewed T-NETIX's annual report and Form 10-K for its fiscal year
         ended July 31, 1998, including the audited financial statements
         included therein, and T-NETIX's Form 10-Q for the quarterly period
         ended October 31, 1998, including the unaudited financial statements
         included therein;

9.)      participated in discussions with T-NETIX management concerning the
         operations, business strategy, financial performance and prospects for
         T-NETIX;

10.)     reviewed the recent reported closing prices and trading activity for 
         T-NETIX Stock;

11.)     discussed with T-NETIX management its view of the strategic rationale 
         for the Merger;

12.)     compared certain aspects of the financial performance of T-NETIX with
         public companies we deemed comparable;

13.)     considered the total number of shares of T-NETIX Stock outstanding and
         the average weekly trading volume of T-NETIX Stock;

14.)     reviewed equity analyst reports covering T-NETIX;

15.)     analyzed the anticipated effect of the Merger on the future financial 
         performance of the consolidated entity;

16.)     reviewed an independent evaluation and study of the products of Gateway
         and T- NETIX performed by Gate-Net Associates and commissioned by the 
         managements of Gateway and T-NETIX;


<PAGE>   182



17.)     assisted in negotiations and discussions related to the Merger among
         T-NETIX, Gateway and their accounting and legal advisors; and

18.)     conducted other financial studies, analyses and investigations as we
         deemed appropriate for purposes of this opinion.

In rendering our opinion, we have relied, without independent verification, on
the accuracy and completeness of all the financial and other information
(including without limitation the representations and warranties contained in
the Agreement) that was publicly available or furnished to us by T-NETIX,
Gateway or Gateway's advisors. With respect to the financial projections
examined by us, we have assumed that they were reasonably prepared and reflected
the best available estimates and good faith judgments of the managements of
T-NETIX and Gateway as to the future performance of T-NETIX and Gateway. We have
neither made nor obtained an independent appraisal or valuation of any of
Gateway's assets.

Based upon and subject to the foregoing, we are of the opinion that the Merger
Consideration is fair, from a financial point of view, to T-NETIX shareholders.

For purposes of this opinion, we have assumed that neither T-NETIX nor Gateway
is currently involved in any material transaction other than the Merger and
those activities undertaken in the ordinary course of conducting their
respective businesses. Our opinion is necessarily based upon market, economic,
financial and other conditions as they exist and can be evaluated as of the date
of this opinion, and any change in such conditions would require a reevaluation
of this opinion. We express no opinion as to the price at which T-NETIX Stock
will trade at any time.

This opinion speaks only as of the date hereof. It is understood that this
opinion is for the information of the Board of Directors of T-NETIX in
connection with its consideration of the Merger and does not constitute a
recommendation to any T-NETIX shareholder as to how such shareholder should vote
on the Merger. This opinion may not be published or referred to, in whole or
part, without our prior written permission, which shall not be unreasonably
withheld. Broadview hereby consents to references to, and the inclusion of, this
opinion in its entirety in the Proxy Statement/Prospectus to be distributed to
T-NETIX shareholders in connection with the Merger.


Sincerely,



Broadview Int'l LLC


<PAGE>   183
                                   APPENDIX C

                                  T-NETIX, INC.
                         NON-QUALIFIED STOCK OPTION PLAN



         1.       PURPOSE.

         The purpose of the T-Netix, Inc. Non-qualified Stock Option Plan (the
"Plan") is to provide a means by which T-Netix, Inc. (the "Corporation"),
through the grant of stock options to eligible employees and/or directors, may
attract and retain persons of ability as employees and/or directors and motivate
such employees and/or directors to exert their best efforts on behalf of the
Corporation and any subsidiary corporation of the Corporation. For the purposes
of the Plan, the term "Subsidiary Corporation" means a subsidiary corporation as
defined by Section 425(f) of the Internal Revenue Code of 1986, as amended. It
is not intended that the options issued under the Plan will qualify as incentive
stock options under Section 422A of the Internal Revenue Code of 1986, as
amended.

         2.       SHARES SUBJECT TO THE PLAN.

         Subject to the provisions of Section 5(g) of the Plan, 2,000,000 shares
of the common stock of the Corporation shall be reserved and may be optioned
under either this Plan or the 1993 Incentive Stock Option Plan of the
Corporation (the "ISO Plan") as may be determined from time to time. The
reserved shares may be authorized and unissued shares or treasury shares of the
Corporation or any combination of both as determined by the Board of Directors
of the Corporation. If an option granted under the Plan ceases to be exercisable
in whole or in part, the shares representing such option shall be available
under the Plan and the ISO Plan for the grant of options in the future.

         3.       ADMINISTRATION OF THE PLAN.

         The Plan shall be administered by the Board of Directors of the
Corporation or a Committee of the Board of Directors (the "Committee"), which
Committee shall consist of not less than two Directors of the Corporation.
Members of the Committee shall be appointed by and shall serve at the pleasure
of the Board of Directors of the Corporation. Any vacancies in the membership of
the Committee shall be filled by an appointment by the Board of Directors of the
Corporation.

         The Committee shall keep minutes of its meetings. All actions of the
Committee shall be taken by a majority of its members. Any act approved in
writing by a majority of the Committee members shall be fully effective as it
had been taken by a vote of a majority of the members at a meeting duly called
and held.

         Subject to and not inconsistent with the provisions of the Plan, the
Board of Directors or the Committee shall have complete authority in its
discretion to interpret all provisions of the Plan consistently with the law, to
prescribe the form of the instrument evidencing any option granted under the
Plan, to adopt, amend and rescind general and special rules and regulations for
the administration of the Plan and to make all other determinations necessary or
advisable for the administration of the Plan.




<PAGE>   184



         4.       ELIGIBILITY AND GRANT OF OPTIONS UNDER THE PLAN.

         Options may be granted at such times, in such amounts, and, to the
extent not inconsistent with the Plan, on such terms as the Board of Directors
or the Committee shall determine to employees. officers or directors, of the
Corporation or of a Subsidiary Corporation.

         5.       TERMS AND CONDITIONS OF OPTIONS GRANTED UNDER THE PLAN.

         Each option granted under the Plan shall be evidenced by an agreement
in a form determined by the Board of Directors or the Committee. Such agreement
shall be subject to the following express terms and conditions, and such other
terms and conditions as the Board of Directors or the Committee may deem
appropriate.

                  (a) OPTION PERIOD. Each option agreement shall specify the
period for which the option thereunder is granted and shall provide that the
option shall expire at the end of such period. The period for which an option is
granted may not exceed 10 years from the date of the grant of the option.

                  (b) EXERCISE OF OPTION. An option may be exercised at any time
after it has vested and prior to its expiration.

                  (c) OPTION PRICE. The option price per share shall be
determined by the Board of Directors or the Committee at the time an option is
granted and shall be not less than 100 percent of the fair market value of a
share of the common stock of the Corporation on the date of the grant as
determined in good faith by the Board of Directors or the Committee. Fair market
value at the time of payment shall be determined without regard to any
restriction other than a restriction that, by its terms, will never lapse. The
Board of Directors or the Committee may reprice the option price at its
discretion at a price not less than 100 percent of the fair market value of a
share of the common stock of the Corporation on the date of such repricing.

                  (d) PAYMENT OF PURCHASE PRICE UPON EXERCISE. Each option shall
provide that the purchase price of the shares for which an option may be
exercised shall be paid to the Corporation at the time of exercise either in
cash or with stock of the Corporation held by the Optionee for more than six
months and having a fair market value equal to the purchase price.

                  (e) NONTRANSFERABILITY. No option granted under the Plan shall
be transferable other than by a will of an optionee or by the laws of descent
and distribution. During his lifetime, an option shall be exercisable only by an
optionee or by the optionee's attorney-in-fact or conservator.

                  (f) INVESTMENT REPRESENTATION. The shares of stock to be
issued upon the exercise of all or any portion of any option granted under the
Plan shall be issued on the condition that the optionee represents that the
purchase of stock upon such exercise shall be for investment purposes and not
with a view to resale, distribution, offering, transferring, mortgaging,
pledging, hypothecating or otherwise disposing of any such stock under the
circumstances which would


                                      - 2 -

<PAGE>   185



constitute a public offering or distribution under the Securities Act of 1933 or
the securities laws of any state. No shares of stock shall be issued upon the
exercise of any option unless the Corporation shall have received from the
optionee a written statement satisfactory to legal counsel for the Corporation
containing the above representations, stating that certificates representing
such shares may bear a legend restricting their transfer and stating that the
Corporation's transfer agent or agents may be given instructions to stop
transfer of any certificate bearing such legend. Such representation and
restrictions provided for herein, shall not be required if (1) an effective
registration statement for such shares under the Securities Act of 1933 and any
applicable state laws has been filed with the Securities and Exchange Commission
and with the appropriate agency or commission of any state whose laws apply to
the transaction, or (2) an opinion of counsel satisfactory to the Corporation
has been delivered to the Corporation to the effect that registration is not
required under the Securities Act of 1933 or under the applicable securities
laws of any state.

                  (g) ADJUSTMENTS IN EVENT OF CHANGE IN COMMON STOCK.
Notwithstanding any other provision of the Plan, in the event of any change in
the outstanding common stock of the Corporation by reason of any stock dividend,
recapitalization, reorganization, merger, consolidation, split-up, combination
or exchange of shares, rights offering to purchase the common stock at a price
substantially below fair market value or of any similar change affecting the
common stock. the number and kind of shares which thereafter may be optioned and
sold under the Plan and the number and kind of shares subject to option in
outstanding option agreements and the purchase price per share thereof shall be
appropriately adjusted consistent with such change in such manner as the Board
of Directors or the Committee may deem equitable to prevent substantial dilution
or enlargement of the rights granted to, or available for, an optionee under the
Plan.

                  (h) NO RIGHTS AS A SHAREHOLDER. No optionee shall have any
rights as a shareholder with respect to any shares subject to his option prior
to the date of issuance to him of a certificate or certificates for such shares.

                  (i) NO RIGHTS TO CONTINUED EMPLOYMENT. The Plan and any option
granted under the Plan shall neither confer upon any optionee any right with
respect to continuance of employment by the Corporation or by any subsidiary of
the Corporation, nor shall it interfere in any way wish the right of the
Corporation to terminate his employment at any time.

         6.       COMPLIANCE WITH OTHER LAWS AND REGULATIONS.

         The Plan, the grant and exercise of options under the Plan, and the
obligation of the Corporation to sell and deliver shares under such options,
shall be subject to all applicable federal and state laws, rules and regulations
and to such approvals by any government or regulatory agency as may be required.
The Corporation shall not be required to issue or deliver any certificates for
shares of common stock prior to the completion of any registration or
qualification of such shares under any federal or state law, or any ruling or
regulation of any government body which the Corporation shall, in its sole
discretion, determine to be necessary or advisable.



                                      - 3 -

<PAGE>   186


         7.       AMENDMENT AND DISCONTINUANCE.

         The Board of Directors of the Corporation may amend, suspend or
discontinue the Plan; provided, however, that, subject to the provisions of
Section 5(g) no action of the Board of Directors of the Corporation or of the
Board of Directors or the Committee may (i) increase the number of shares
reserved for options pursuant to Section 2, (ii) permit the grant of any option
at an option price less than the price determined in accordance with Section
5(c), (iii) permit the granting of options which expire beyond the period
provided for in Section 5(a), or (iv) modify the requirements as to eligibility
for participation in the Plan. Without the written consent of an optionee, no
amendment or suspension of the Plan shall alter or impair any option previously
granted to him under the Plan.

         8.       EFFECTIVE DATE.

         The effective date of the Plan shall be January 10, 1991, subject to
the approval by stockholders of the Corporation holding not less than a majority
of the shares present and voting at a meeting of shareholders prior to December
31, 1991. Notwithstanding the foregoing, options may be granted by the Board of
Directors or the Committee as provided by the terms of the Plan subject to such
subsequent stockholder approval. The Plan shall terminate on December 31, 2000.

         9.       NAME OF THE PLAN.

         The Plan shall be known as the T-Netix, Inc. Non-qualified Stock 
Option Plan.

         10.      EFFECT OF THE PLAN ON OTHER STOCK PLANS.

         The adoption of the Plan shall have no effect on awards made or to be
made pursuant to other stock plans covering employees and/or directors of the
Corporation, a subsidiary corporation of the Corporation, a parent corporation
or any predecessors or successors thereto.



                                      - 4 -


<PAGE>   187
                                   APPENDIX D

                                  T-NETIX, INC.
                        1993 INCENTIVE STOCK OPTION PLAN


         1.       PURPOSE.

         The purpose of the T-Netix, Inc. Incentive Stock Option Plan (the
"Plan") is to provide a means by which T-Netix, Inc. (the "Corporation"),
through the grant of stock options to eligible employees, may attract and retain
persons of ability as employees and motivate such employees to exert their best
efforts on behalf of the Corporation and any subsidiary corporation of the
Corporation. For the purposes of the Plan, the term "Subsidiary Corporation"
means a subsidiary corporation as defined by Section 425(f) of the Internal
Revenue Code of 1986, as amended. It is intended that the options issued under
the Plan will qualify as incentive stock options under Section 422A of the
Internal Revenue Code of 1986, as amended.

         2.       SHARES SUBJECT TO THE PLAN.

         Subject to the provisions of Section 5(g) of the Plan, 2,000,000 shares
of the common stock of the Corporation shall be reserved and may be optioned
under either this Plan or the Corporation's Non-qualified Stock Option Plan (the
"NSO Plan") as may be determined from time to time. The reserved shares may be
authorized and unissued shares or treasury shares of the Corporation or any
combination of both as determined by the Board of Directors of the Corporation.
If an option granted under the Plan ceases to be exercisable in whole or in
part, the shares representing such option shall be available under the Plan and
the NSO Plan for the grant of options in the future.

         3.       ADMINISTRATION OF THE PLAN.

         The Plan shall be administered by the Board of Directors of the
Corporation or a Committee of the Board of Directors (the "Committee"), which
Committee shall consist of not less than two Directors of the Corporation.
Members of the Committee shall be appointed by and shall serve at the pleasure
of the Board of Directors of the Corporation. Any vacancies in the membership of
the Committee shall be filled by an appointment by the Board of Directors of the
Corporation.

         The Committee shall keep minutes of its meetings. All actions of the
Committee shall be taken by a majority of its members. Any act approved in
writing by a majority of the Committee members shall be fully effective as it
had been taken by a vote of a majority of the members at a meeting duly called
and held.

         Subject to and not inconsistent with the provisions of the Plan, the
Board of Directors or the Committee shall have complete authority in its
discretion to interpret all provisions of the Plan consistently with the law, to
prescribe the form of the instrument evidencing any option granted under the
Plan, to adopt, amend and rescind general and special rules and regulations for
the administration of the Plan and to make all other determinations necessary or
advisable for the administration of the Plan.



                                      - 1 -

<PAGE>   188



         4.       ELIGIBILITY AND GRANT OF OPTIONS UNDER THE PLAN.

         Options may be granted at such times, in such amounts, and, to the
extent not inconsistent with the Plan, on such terms as the Board of Directors
or the Committee shall determine subject to the following.

                  a. ELIGIBILITY. Options may be granted to such employees,
including officers and directors, who are also employees, of the Corporation or
of a Subsidiary Corporation that the Board of Directors or the Committee deems
to be key employees who, in the judgment of the Board of Directors or the
Committee, are considered important to the future of the Corporation or a
Subsidiary Corporation.

                  b. TEN PERCENT SHAREHOLDERS. No option may be granted to any
such eligible employee who at the time of such grant owns stock possessing more
than 10 percent of the total combined voting power of all classes of stock of
the Corporation or of any Subsidiary Corporation (a "10 Percent Shareholder")
unless at the time such option is granted the option price is at least 110
percent of the fair market value of the stock and such option by its terms is
not exercisable after the expiration of five years from the date such option is
granted.

                  c. LIMITATIONS. The aggregate fair market value of the stock,
determined at the time an option for the stock is granted, for which incentive
stock options are exercisable for the first time by an optionee during any
calendar year, under all the incentive stock option plans of the Corporation and
of any Subsidiary Corporation, may not exceed $100,000.

         5.       TERMS AND CONDITIONS OF OPTIONS GRANTED UNDER THE PLAN.

         Each option granted under the Plan shall be evidenced by an agreement
in a form determined by the Board of Directors or the Committee. Such agreement
shall be subject to the following express terms and conditions, and such other
terms and conditions as the Board of Directors or the Committee may deem
appropriate.

                  a. OPTION PERIOD. Each option agreement shall specify the
period for which the option thereunder is granted and shall provide that the
option shall expire at the end of such period. The period for which an option is
granted may not exceed 10 years from the date of the grant of the option or five
years in the case of a 10 Percent Shareholder.

                  b.       EXERCISE OF OPTION.

                           (i)      By an Optionee During Continuous Employment.
An optionee may not exercise any part of an option granted under the Plan unless
the optionee has been in the continuous employment of the Corporation or of a
Subsidiary Corporation at all times from the date of the grant of the option
until the date three months prior to the date of exercise except as provided
below. Such employment must be at least one year before an option can be
exercised. The Board of Directors or the Committee may prescribe a longer time
period before an option may be exercised by an optionee. The option agreement
may provide for exercise in installments of the option granted.



                                      - 2 -

<PAGE>   189



                           (ii)     Exercise in the Event of Death or 
Termination of Employment.

                                    A.      If an optionee shall die (i) while 
an employee of the Corporation or a Subsidiary Corporation or (ii) within three
months after termination of his employment with the Corporation or a Subsidiary
Corporation because of his disability, his options may be exercised, to the
extent that the optionee shall have been entitled to do so on the date of his
death or such termination of employment, by the person or persons to whom the
optionee's right under the option pass by will or applicable law, or if no such
person has such right, by his executors or administrators, at any time, or from
time to time, but not later than the expiration date referred to in Section 5(a)
or two years after the optionee's death, whichever date is earlier.

                                    B.      If an optionee's employment by the 
Corporation or a Subsidiary Corporation shall terminate because of his
disability and such optionee has not died within the following three months, he
may exercise his options, to the extent that he shall have been entitled to do
so at the date of the termination of his employment, at any time or from time to
time, but not later than the expiration date referred to in Section 5(a) or one
year after termination of employment, whichever date is earlier.

                                    C.      If an optionee's employment shall 
terminate by reason of his retirement in accordance with the terms of the
Corporation's tax-qualified retirement plans or with the consent of the Board of
Directors or the Committee or involuntarily other than "for cause", all right to
exercise his option shall terminate at the expiration date referred to in
Section 5(a) or three months after termination of employment, whichever date is
earlier. For this purpose, termination "for cause" shall mean termination of
employment by reason of the optionee's commission of a felony, fraud, or willful
misconduct which had resulted, or is likely to result, in substantial and
material damage to the Corporation or a Subsidiary Corporation, all as the Board
of Directors or the Committee, in its sole discretion, may determine.

                                    D.      If an optionee's employment shall 
terminate voluntarily or involuntarily "for cause", all right to exercise his
option shall terminate at the date of such termination of employment.

                  c. OPTION PRICE. The option price per share shall be
determined by the Board of Directors or the Committee at the time an option is
granted and shall be not less than 100 percent of the fair market value (110
percent in the case of a 10 Percent Shareholder) of a share of the common stock
of the Corporation on the date of the grant as determined in good faith by the
Board of Directors or the Committee. Fair market value at the time of payment
shall be determined without regard to any restriction other than a restriction
that, by its terms, will never lapse. The value of the stock should be the value
of a share of stock not subject to the option. The words "subject to the option"
might be interpreted as a direction to value the stock subject to a restriction,
i.e., the option. The Board of Directors or the Committee may reprice the option
price per share at its discretion at a price not less than 100 percent of the
fair market value (110 percent in the case of a 10 Percent Shareholder) of a
share of the common stock of the Corporation on the date of such repricing.

                  d. PAYMENT OF PURCHASE PRICE UPON EXERCISE. Each option shall
provide that the purchase price of the shares for which an option may be
exercised shall be paid to the Corporation


                                      - 3 -

<PAGE>   190



at the time of exercise either in cash or with stock of the Corporation held by
the Optionee for more than six months and having a fair market value equal to
the purchase price.

                  e. NONTRANSFERABILITY. No option granted under the Plan shall
be transferable other than by a will of an optionee or by the laws of descent
and distribution. The words "the will" of the optionee suggest the wish of the
optionee rather than the legal document governing the disposition of his
property. During his lifetime, an option shall be exercisable only by an
optionee or by the optionee's attorney-in-fact or conservator, unless such
exercise by the attorney-in-fact or conservator of the optionee would disqualify
the option as an incentive stock option under Section 422A of the Internal
Revenue Code of 1986, as amended.

                  f. INVESTMENT REPRESENTATION. The shares of stock to be issued
upon the exercise of all or any portion of any option granted under the Plan
shall be issued on the condition that the optionee represents that the purchase
of stock upon such exercise shall be for investment purposes and not with a view
to resale, distribution, offering, transferring, mortgaging, pledging,
hypothecating or otherwise disposing of any such stock under the circumstances
which would constitute a public offering or distribution under the Securities
Act of 1933 or the securities laws of any state. No shares of stock shall be
issued upon the exercise of any option unless the Corporation shall have
received from the optionee a written statement satisfactory to legal counsel for
the Corporation containing the above representations, stating that certificates
representing such shares may bear a legend restricting their transfer and
stating that the Corporation's transfer agent or agents may be given
instructions to stop transfer of any certificate bearing such legend. Such
representation and restrictions provided for herein shall not be required if (1)
an effective registration statement for such shares under the Securities Act of
1933 and any applicable state laws has been filed with the Securities and
Exchange Commission and with the appropriate agency or commission of any state
whose laws apply to the transaction, or (2) an opinion of counsel satisfactory
to the Corporation has been delivered to the Corporation to the effect that
registration is not required under the Securities Act of 1933 or under the
applicable securities laws of any state.

                  g. ADJUSTMENTS IN EVENT OF CHANGE IN COMMON STOCK.
Notwithstanding any other provision of the Plan, in the event of any change in
the outstanding common stock of the Corporation by reason of any stock dividend,
recapitalization, reorganization, merger, consolidation, split-up, combination
or exchange of shares, rights offering to purchase the common stock at a price
substantially below fair market value or of any similar change affecting the
common stock, the number and kind of shares which thereafter may be optioned and
sold under the Plan and the number and kind of shares subject to option in
outstanding option agreements and the purchase price per share thereof shall be
appropriately adjusted consistent with such change in such manner as the Board
of Directors or the Committee may deem equitable to prevent substantial dilution
or enlargement of the rights granted to, or available for, an optionee under the
Plan.

                  h. NO RIGHTS AS A SHAREHOLDER. No optionee shall have any
rights as a shareholder with respect to any shares subject to his option prior
to the date of issuance to him of a certificate or certificates for such shares.

                  i. NO RIGHTS TO CONTINUED EMPLOYMENT. The Plan and any option
granted under the Plan shall neither confer upon any optionee any right with
respect to continuance of


                                      - 4 -

<PAGE>   191


employment by the Corporation or by any subsidiary of the Corporation, nor shall
it interfere in any way with the right of the Corporation to terminate his
employment at any time.

         6.       COMPLIANCE WITH OTHER LAWS AND REGULATIONS.

         The Plan, the grant and exercise of options under the Plan, and the
obligation of the Corporation to sell and deliver shares under such options
shall be subject to all applicable federal and state laws, rules and regulations
and to such approvals by any government or regulatory agency as may be required.
The Corporation shall not be required to issue or deliver any certificates for
shares of common stock prior to the completion of any registration or
qualification of such shares under any federal or state law, or any ruling or
regulation of any government body which the Corporation shall, in its sole
discretion, determine to be necessary or advisable.

         7.       AMENDMENT AND DISCONTINUANCE.

         The Board of Directors of the Corporation may amend, suspend or
discontinue the Plan; provided, however, that, subject to the provisions of
Section 5(g) no action of the Board of Directors of the Corporation or of the
Board of Directors or the Committee may (i) increase the number of shares
reserved for options pursuant to Section 2, (ii) permit the grant of any option
at an option price less than the price determined in accordance with Section
5(c), (iii) shorten the period provided for in subparagraph (1) of Section 5(b)
which must elapse between the date of the grant of an option and the date on
which any part of an option may be exercised by an optionee, (iv) permit the
granting of options which expire beyond the period provided for in Section 5(a),
or (v) modify the requirements as to eligibility for participation in the Plan.
Without the written consent of an optionee, no amendment or suspension of the
Plan shall alter or impair any option previously granted to him under the Plan.

         8.       EFFECTIVE DATE.

         The effective date of the Plan shall be May 1, 1993, subject to the
approval by stockholders of the Corporation holding not less than a majority of
the shares present and voting at a meeting of shareholders prior to May 27,
1993. Notwithstanding the foregoing, options may be granted by the Board of
Directors or the Committee as provided by the terms of the Plan subject to such
subsequent stockholder approval. The Plan shall terminate on May 1, 2004.

         9.       NAME OF THE PLAN.

         The Plan shall be known as the T-Netix, Inc. 1993 Incentive Stock 
Option Plan.

         10.      EFFECT OF THE PLAN ON OTHER STOCK PLANS.

         The adoption of the Plan shall have no effect on awards made or to be
made pursuant to other stock plans covering employees of the Corporation, a
subsidiary corporation of the Corporation, a parent corporation or any
predecessors or successors thereto.



                                      - 5 -


<PAGE>   192
PROXY

                                  T-NETIX, INC.
                     SOLICITED BY THE BOARD OF DIRECTORS FOR
                         SPECIAL MEETING OF SHAREHOLDERS
                                 MARCH 29, 1999

         The undersigned holder of common stock of T-NETIX, Inc., a Colorado
corporation ("T-NETIX") acknowledges receipt of a copy of the Notice of Special
Meeting of Shareholders dated February 26, 1999, and, revoking any proxy
heretofore given, hereby appoints Alvyn A. Schopp and Daniel M. Carney, and each
of them, with full power to each of substitution as attorneys and proxies to
appear and vote all shares of common stock of T-NETIX registered in the name(s)
of the undersigned and held by the undersigned of record as of February 24,
1999, at the Special Meeting of Shareholders of T-NETIX to be held at 67
Inverness Drive East, Suite 100, Englewood, Colorado, on March 29, 1999, at
10:00 a.m., and at any postponements and adjournments thereof, upon the
following item as set forth in the Notice of Special Meeting. All properly
executed proxies will be voted as indicated. The proxy holders may, in their
discretion, vote shares which have been voted in favor of the proposal to
adjourn the Special Meeting to solicit additional proxies in favor of the
proposal.


                               (To be continued and signed on the reverse side.)



<PAGE>   193


UNLESS OTHERWISE SPECIFIED, THIS PROXY WILL BE VOTED "FOR" ITEM 1:

(1)      A proposal to approve the issuance of up to 4,231,315 shares of common
         stock, $0.01 stated value, of T-NETIX, Inc. to the shareholders of
         Gateway Technologies, Inc., in accordance with the Agreement and Plan
         of Merger dated as of February 10, 1999, among T-NETIX, Inc., Gateway
         Technologies, Inc., and a wholly owned subsidiary of T-NETIX, Inc.
         called T-NETIX Acquisition Corp., pursuant to which T-NETIX Acquisition
         Corp. will be merged with and into Gateway Technologies, Inc. with
         Gateway Technologies, Inc. surviving said merger as a wholly owned
         subsidiary of T-NETIX, Inc., and in connection with said merger, to
         amend T-NETIX, Inc.'s 1993 Incentive Stock Option Plan and T-NETIX,
         Inc.'s Non-Qualified Stock Option Plan to increase from 2,000,000 to
         2,600,000 the number of shares subject to option under said stock
         option plans.

         [  ] FOR          [  ] AGAINST              [  ] ABSTAIN



THIS PROXY IS SOLICITED BY AND ON BEHALF OF THE BOARD OF DIRECTORS AND MAY BE
REVOKED PRIOR TO ITS EXERCISE.  THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR"
PROPOSAL 1.  THIS PROXY WHEN PROPERLY EXECUTED WILL BE VOTED AS DIRECTED.  IF NO
DIRECTION IS MADE IT WILL BE VOTED "FOR" PROPOSAL 1.



        WE DO         DO NOT EXPECT TO ATTEND THIS MEETING.
- - ------        -------

Date
     ------------------------------------



- - -----------------------------------------
Signature



- - -----------------------------------------
Signature if Held Jointly


PLEASE DATE AND SIGN EXACTLY AS YOUR NAME(S) APPEAR ABOVE. WHEN SIGNING AS
ATTORNEY, EXECUTOR, ADMINISTRATOR, TRUSTEE OR GUARDIAN, PLEASE GIVE FULL TITLE.
ALL JOINT OWNERS SHOULD SIGN. IF A CORPORATION, PLEASE SIGN IN FULL CORPORATE
NAME BY AN AUTHORIZED OFFICER. IF A PARTNERSHIP, PLEASE SIGN IN PARTNERSHIP NAME
BY AUTHORIZED PERSON.

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