TCS Enters Into Patent Lawsuit Standstill Agreement With RIM

TeleCommunication Systems, Inc. (TCS) (NASDAQ: TSYS), a leading provider of mission-critical wireless communications, today announced it has entered into a Standstill Agreement with Research In Motion Limited (RIM) on April 11, 2008 and dismissed, without prejudice, its patent infringement lawsuit against RIM pursuant to the Standstill Agreement.

On December 20, 2007, TCS filed a lawsuit in the U.S. District Court for the Eastern District of Virginia against RIM, seeking damages for patent infringement of United States Patent No. 6,871,215 as well as an injunction against RIM from further infringement.

The Standstill Agreement provides TCS and RIM additional time to negotiate an amicable business resolution while suspending legal proceedings temporarily. The standstill will remain in place until at least June 12, 2008.

The case is TeleCommunication Systems, Inc. v. Research In Motion Limited, Case No. 1:07cv1277(E.D. Va.).

About TeleCommunication Systems, Inc.

TeleCommunication Systems, Inc. (TCS) (NASDAQ: TSYS) produces wireless data communications technology solutions that require proven high levels of reliability. TCS provides wireless and VoIP E9-1-1 network-based services, secure deployable communication systems, engineered satellite-based services, and commercial location applications, like traffic and navigation, using the precise location of a wireless device. Customers include leading wireless, cable MSOs, and VoIP carriers around the world, and agencies of the U.S. Departments of Defense, State, and Homeland Security. For more information, visit www.telecomsys.com.

Except for the historical information contained herein, this news release contains forward-looking statements as defined within Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities and Exchange Act of 1934, as amended. These statements are subject to risks and uncertainties and are based upon TCS' current expectations and assumptions that if incorrect would cause actual results to differ materially from those anticipated. Risks include the possibility of counterclaims and related unfavorable court decisions, the possibility that the costs of litigation will exceed resulting recoveries (if any), and those detailed from time to time in the Company's SEC reports, including the report on Form 10-K for the year ended December 31, 2007.

Existing and prospective investors are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. The Company undertakes no obligation to update or revise the information in this press release, whether as a result of new information, future events or circumstances, or otherwise.