Exhibit 1.2

                              PAYSYS INTERNATIONAL, INC.
                                  LOCK-UP AGREEMENT
                                           
                                _______________, 1997
                                           
Montgomery Securities
Raymond James & Associates, Inc.
Wessels, Arnold & Henderson, L.L.C.
    As Representatives of the Several Underwriters
c/o Montgomery Securities
600 Montgomery Street
San Francisco, California  94111

Ladies and Gentlemen:

     The undersigned understands that you, as Representatives of the several
underwriters (the "Underwriters"), propose to enter into an Underwriting
Agreement (the "Underwriting Agreement") with PaySys International, Inc. (the
"Company") providing for the public offering (the "Public Offering") by the
Underwriters, including yourselves, of Common Stock of the Company (the "Common
Stock") pursuant to the Company's Registration Statement on Form S-1 to be filed
with the Securities and Exchange Commission on or about October ____, 1997 (the
"Registration Statement").

     In consideration of the Underwriters' agreement to purchase and make the
Public Offering of the Common Stock, and for other good and valuable
consideration, receipt of which is hereby acknowledged, the undersigned hereby
agrees, for a period of 180 days after the effective date of the Registration
Statement (the "Lock-Up Period"), not to offer to sell, contract to sell or
otherwise sell, dispose of, loan, pledge or grant any rights with respect to
(collectively, a "Disposition") any shares of Common Stock, any options or
warrants to purchase any shares of Common Stock or any securities convertible
into or exchangeable for shares of Common Stock (collectively, "Securities"),
now owned or hereafter acquired directly by the undersigned or with respect to
which the undersigned has or hereafter acquires the power of disposition,
otherwise than (i) as a bona fide gift or gifts, provided the donee or donees
thereof agree in writing to be bound by this Lock-Up Agreement, (ii) as a
distribution to partners or stockholders of the undersigned, provided that the
distributees thereof agree in writing to be bound by the terms of this Lock-Up
Agreement or (iii) with the prior written consent of Montgomery Securities.  The
foregoing restriction is expressly agreed to preclude the holder of the
Securities from engaging in any hedging or other transaction which is designed
to or reasonably expected to lead to or result in a Disposition of Securities
during the Lock-Up Period even if such Securities would be disposed of by
someone other than the undersigned.  Such prohibited hedging or other
transactions would include without limitation any short sale (whether or not
against the box) or any purchase, sale or grant of any right (including without
limitation any put or call option) with respect to any Securities or with
respect to any security (other than a broad-based market basket or index) that
includes, relates to or derives any significant part of its value from
Securities.  Notwithstanding the foregoing, 

                                           


this Lock-Up Agreement does not prohibit the sale of shares of the Common Stock
by the undersigned to the Underwriters in the Public Offering.

     Furthermore, the undersigned hereby agrees and consents to the entry of
stop transfer instructions with the Company's transfer agent against the
transfer of the Securities held by the undersigned except in compliance with
this Lock-Up Agreement.  In the event that the Registration Statement shall not
have been declared effective on or before January 31, 1998, this Lock-Up
Agreement shall be of no further force or effect.
     
                                  Very truly yours,
         
                                  ____________________________________
                                  Name:_______________________________
                                  Title:______________________________
                                             (print or type)


Accepted as of the date first set forth above:

Montgomery Securities
Raymond James & Associates, Inc.
Wessels, Arnold & Henderson, L.L.C.
    As Representatives of the Several Underwriters

By: Montgomery Securities

By: __________________________
     (authorized signatory)