SOURCE: TeleCommunication Systems, Inc.

June 12, 2007 09:00 ET

TCS Enters Contract Extension With MetroPCS for Hosted E9-1-1 Services

TCS Continues to Deliver TL-9000-Grade Infrastructure and PSAP Deployment Services for Rapid-Growth Wireless Operator

ANNAPOLIS, MD--(Marketwire - June 12, 2007) - TeleCommunication Systems, Inc. (TCS) (NASDAQ: TSYS), a leading provider of mission-critical wireless data solutions, and MetroPCS Communications, Inc. (NYSE: PCS), a leading facilities-based provider of unlimited wireless communications service for a flat rate with no signed contract, today announced a three-year contract extension under which TCS will continue to provide Hosted Mobile Positioning Center (MPC) and Hosted Position Determining Entity (PDE) services for E9-1-1.

"MetroPCS is committed to supporting the safety and security of our subscribers with the quality TCS delivers for our E9-1-1 service," said Roger Linquist, President, Chief Executive Officer and Chairman of the Board of MetroPCS.

"Our strong relationship with MetroPCS is testimony to the proven solutions TCS provides," said Dan Allen, Senior Vice President, Service Bureau for TCS. "The contract extension demonstrates MetroPCS' continued confidence and satisfaction in the delivery of our TL-9000 certified hosted E9-1-1 services."

TCS' E9-1-1 solution enables wireless operators to comply with Phase I and Phase II of the FCC's mandate, while providing the life-saving emergency services and security that wireless consumers expect. Using the efficient, open architecture of TCS' award-winning Xypoint® Location Platform, TCS enables wireless operators to deliver wireless E9-1-1 call location information to the appropriate Public Safety Answering Point (PSAP). In addition to its proprietary technology platform, TCS provides operators with end-to-end support and all aspects of deployment, from switch integration, database management and Geographic Information Services (GIS), to compliance expertise, services to PSAPs and cost-recovery assistance.

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 and engineered satellite-based services, and commercial location applications, like traffic and navigation, using the precise location of a wireless device. Customers include leading wireless and VoIP operators around the world, and agencies of the U.S. Departments of Defense, State, and Homeland Security.

About MetroPCS Communications, Inc.

Dallas-based MetroPCS Communications, Inc. (NYSE: PCS) is a provider of unlimited wireless communications service for a flat rate with no signed contract. MetroPCS owns or has access to licenses covering a population of approximately 140 million people in 14 of the top 25 largest metropolitan areas in the United States, including New York, Philadelphia, Boston, Miami, Orlando, Sarasota, Tampa, Atlanta, Dallas/Fort Worth, Detroit, Las Vegas, Los Angeles, San Francisco and Sacramento. Currently, MetroPCS has over 3 million subscribers and offers service in the Miami, Orlando, Sarasota, Tampa, Atlanta, Dallas/Fort Worth, Detroit, San Francisco and Sacramento metropolitan areas.

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 the companies' current expectations and assumptions that if incorrect would cause actual results to differ materially from those anticipated. Risks include those detailed from time to time in the Company's SEC reports such as form 10-K for the period ending December 31, 2006 and form 10-Q for the quarter ending March 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 companies undertake 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.

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