TSYS (MM)

TeleCommunication Systems, Inc. (TCS) (NASDAQ: TSYS), a world leader in highly reliable and secure mobile communication technology, today announced that its Government Solutions Group Senior Vice President and General Manager, Mike Bristol, will give the presentation "They Don't Make Diamonds the Size of Bricks" at the COMSYS VSAT2010 conference on September 16 in London, England.

The conference brings together industry professionals to learn about new technologies and market developments as well as to network with influential leaders within the VSAT community. Attendees will hear leading innovators in the market deliver their views on customer needs, new developments of applications and platforms, the aspects of providing global and regional services as well as the challenges and opportunities for future growth in the market.

WHAT:   "They Don't Make Diamonds the Size of Bricks" will address the U.S.
        military's need to integrate complex components into lightweight,
        easy to deploy SATCOMs that enable soldiers' access to consistent
        and dependable service in the most demanding environments.

WHO:    Mike Bristol, Senior Vice President and General Manager, TCS
        Government Solutions Group


WHERE:  The COMSYS VSAT2010 Conference
        Waldorf Hilton Hotel, London, England

WHEN:   Thursday, September 16, 2010 at 9.40AM -10:20AM BST

For more information on COMSYS VSAT2010 visit: http://www.comsys.co.uk/wvc_main.htm

TCS has established a proven track record for more than two decades as a trusted provider of communication technology solutions to solve the government's toughest technical challenges, under conditions that demand the highest level of reliability, availability and security. To ensure mission continuity, TCS offers deployable communications solutions and complete end-to-end managed services for converged (IP-based) voice, video and data solutions to organizations requiring seamless, highly secure connectivity between fixed sites and remote operations.

About TeleCommunication Systems, Inc. TeleCommunication Systems, Inc. (TCS) (NASDAQ: TSYS) is a world leader in highly reliable and secure mobile communication technology. TCS infrastructure forms the foundation for market leading solutions in E9-1-1, text messaging, commercial location and deployable wireless communications. TCS is at the forefront of new mobile cloud computing services providing wireless applications for navigation, hyper-local search, asset tracking, social applications and telematics. Millions of consumers around the world use TCS wireless apps as a fundamental part of their daily lives. Government agencies utilize TCS' cyber security expertise and professional services. Headquartered in Annapolis, MD, TCS maintains technical, service and sales offices around the world. To learn more about emerging and innovative wireless technologies, visit www.telecomsys.com.

Company Contact: TeleCommunication Systems, Inc. Meredith Allen 410-295-1865 Email Contact Media Contact: Welz & Weisel Communications Nicole Nolte 703-218-3555 Email Contact Investor Relations: Liolios Group, Inc. Scott Liolios 949-574-3860 Email Contact