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TCS Issued Patent Enabling Location Services While Roaming

Wednesday, September 10, 2008

Invention Supports Standard to Be Used by GSM Operators Around the World

Annapolis, MD -- TeleCommunication Systems, Inc. (TCS) a leading provider of mission-critical wireless communications, today announced the U.S. Patent and Trademark Office has issued patent number 7,424,293 for "User Plane Location Based Service Using Message Tunneling To Support Roaming."

This TCS invention allows a wireless user to receive precise location services when roaming. Roaming is the physical movement of a wireless user among regions covered by different wireless carriers. The invention solves the roaming problem by using a direct communications path inside the operator's firewalls for both the user's home and visiting mobile operator, so that precise location information can be exchanged. Jamie Moss, wireless analyst at Informa Telecoms states, "The ability for wireless users to roam and still access their location based services will be key for mobile operators when providing precision LBS."

The invention is specifically related to the Secure User Plane Location (SUPL) standard that is being deployed by GSM and UMTS operators worldwide for their Assisted GPS deployments. The described invention is implemented in the TCS Xypoint Location Platform.

"Without roaming support, applications such as navigation that are targeted at highly mobile users will have trouble working across long distances," said Drew Morin, Senior Vice President and Chief Technical Officer for TCS. "As more mobile operators deploy precise location applications, the requirement for location roaming will expand in order to ensure a consistent user experience."

TCS now holds 61 patents with 194 applications pending.

About The Invention

The "User Plane Location Based Service Using Message Tunneling To Support Roaming" patent describes a method and apparatus for providing User Plane location based service to a roaming wireless device. The invention establishes a User Plane roaming interface between the visited roaming carrier and the user's home carrier via an Internet Protocol connection. A message tunneling mechanism is formed through each carrier's firewall to provide an uninterrupted communication path.

About TeleCommunication Systems, Inc.

TeleCommunication Systems, Inc. (TCS) 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

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 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 and Form 10-Q for the quarter ended June 30, 2008.

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.

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