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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 14A
                                 (RULE 14a-101)

                     INFORMATION REQUIRED IN PROXY STATEMENT

                            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:

[ ]  Preliminary Proxy Statement

[ ]  Confidential, for Use of the Commission Only (as permitted by Rule
     14a-6(e)(2))

[ ]  Definitive Proxy Statement

[X]  Definitive Additional Materials

[ ]  Soliciting Material Pursuant to Rule 14a-12

                        INTEGRATED SECURITY SYSTEMS, 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):

[X] No fee required.

[ ] 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:

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

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(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):

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(4)  Proposed maximum aggregate value of transaction:

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(5)  Total fee paid:

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[ ] Fee paid previously with preliminary materials.

[ ] 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:

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

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(3)  Filing Party:

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(4)  Date Filed:

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                        INTEGRATED SECURITY SYSTEMS, INC.
                    TO ADJOURN ANNUAL MEETING OF STOCKHOLDERS

IRVING, TEXAS - APRIL 10, 2001 - INTEGRATED SECURITY SYSTEMS, INC. (OTCBB
SYMBOL: IZZI) TODAY ANNOUNCED THAT IT INTENDS TO CONVENE ITS ANNUAL MEETING OF
STOCKHOLDERS AS SCHEDULED ON APRIL 12, 2001 AND THEN IMMEDIATELY ADJOURN THE
MEETING TO RECONVENE ON APRIL 25, 2001. THE RECONVENED ANNUAL MEETING OF
STOCKHOLDERS WILL BE HELD AT THE COMPANY'S EXECUTIVE OFFICES, 8200 SPRINGWOOD
DRIVE, SUITE 230, IRVING, TEXAS 75063, AT 10:00 A.M., DALLAS, TEXAS TIME. THE
COMPANY IS PLANNING THIS ADJOURNMENT IN ORDER TO GIVE ADDITIONAL STOCKHOLDERS A
FURTHER OPPORTUNITY TO VOTE ON THE ANNUAL MEETING PROPOSALS. ALL PREVIOUSLY
SCHEDULED AGENDA ITEMS WILL REMAIN THE SAME.

Headquartered in Irving, Texas, the Company is a high technology company that
designs, develops and markets security software to the commercial, industrial
and governmental marketplaces. The Company's Intelli-Site NT provides users with
a software solution that integrates existing subsystems from multiple vendors
without incurring the additional costs associated with upgrades or replacement.
Intelli-Site NT features a user-defined graphics interface that controls various
security devices within one or multiple facilities. The Company is also a
provider of traffic control and safety systems within the road and bridge and
perimeter security gate industries. In addition, the Company designs,
manufactures and distributes automatic gates for highway railroad crossings
including FHWA-accepted safety barrier gates that are designed to prevent
vehicular intrusion onto railroad crossings. The Company conducts its design,
development, manufacturing and distribution activities through two wholly-owned
subsidiaries: Intelli-Site, Inc. and B&B Electromatic, Inc.


This press release may contain statements that constitute forward-looking
statements within the meaning of the Private Securities Litigation Reform Act of
1995. It is important to note that the Company's actual results could differ
materially from those projected by forward-looking statements. Important factors
that could cause actual results to differ materially from those projected in
forward-looking statements include, but are not limited to, the following:
operations may not improve as projected, new products may not be accepted by the
marketplace as anticipated, or new products may take longer to develop than
anticipated. Additional information concerning the factors that could cause the
Company's actual results to differ materially from the Company's current
expectations is contained in the Company's filings with the Securities and
Exchange Commission.


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