INTEGRATED SECURITY SYSTEMS, INC. ANNOUNCES ADDITIONAL ORDER

Irving, Texas – January 4, 2006 – Integrated Security Systems, Inc. (OTCBB Symbol: IZZI) announced on December 19, 2005, that an order was received by its B&B Roadway Joint Venture from the State of Florida.  A follow-up order has been received by B&B Roadway, which brings the total job to $800,000 in value.  C. A. Rundell, Jr., Chairman and CEO said, “We are pleased with the further demonstration of confidence on the part of this customer.”

About ISSI

Headquartered in Irving, Texas, ISSI is a technology company that provides products and services for homeland security needs.  ISSI also designs, develops and markets safety equipment and security software to the commercial, industrial and governmental marketplaces.  ISSI’s Intelli-Site® 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® features a user-defined graphics interface that controls various security devices within one or multiple facilities.  ISSI is a leading provider of anti-terrorist barriers, traffic control and safety systems within the road and bridge and perimeter security gate industries.  ISSI designs, manufactures and distributes warning gates, lane changers, airport and navigational lighting and perimeter security gates and operators.  ISSI conducts its design, development, manufacturing and distribution activities through three wholly owned subsidiaries:  B&B ARMR, Intelli-Site, Inc. and DoorTek Corporation.  For more information, please visit www.integratedsecurity.com, www.bb-armr.com www.intelli-site.com, or www.doortek.com.

About B&B Roadway

B&B Roadway is a 65% owned joint venture of B&B ARMR.  This operation has a seventy-five-year history of providing gates and barriers to the State Departments of Transportation. For additional information, please visit www.roadwaymfg.com.

This information contains certain forward-looking statements. It is important to note that ISSI's actual results could differ materially from those projected by such forward-looking statements. Important factors that could cause actual results to differ materially from those projected in the 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.