ANNAPOLIS, MD–( EMWNews – March 31, 2008) – CTIA – Booth # 1341 – TeleCommunication

Systems, Inc. (TCS) (NASDAQ: TSYS), a leading provider of mission-critical

wireless communications and

content, today announced the availability of the Xypoint® Mapping Server

release 5.3 with new features that improve application developers’ ability

to rapidly build and deploy

location-based services.

The Xypoint Mapping Server has been widely used and enhanced for more than

a decade. Customers use it for sophisticated applications including

roadside service, directory assistance, vehicle tracking, and telematics.

Supporting Web, mobile and connected navigation applications, release 5.3

provides a technology platform for applications to request and receive

location, routing and point-of-interest information, as well as to generate

tiled maps.

Key features of this new release include:

--  Asynchronous JavaScript and XML (AJAX) support. This feature enables

    continuous panning of maps for interactive web applications. Companies can

    create location-based services for their customers using standards-based

    maps that are combined with rich content. Rather than viewing a static map,

    users can continuously scroll to view a desired area on the map.

    

--  Commercial Vehicle and Turn Restrictions. These two features enable

    companies deploying commercial location-based services to optimize routes

    or develop alternate driving directions based on commercial vehicle

    profiles and road restrictions, saving time and decreasing costs through

    improved routing.

    

--  Traffic-based Routing. Developers can integrate real-time traffic

    information into their location-based applications to evaluate the effect

    of traffic conditions on a particular route or to generate unique alternate

    routes based on real-time traffic conditions.

    

--  Fuzzy Search. This enhanced search capability enables the application

    of fuzzy logic to provide a rich location-based search capability. This

    enables applications to search by partial business names or misspelled

    names, and to provide ranked search results based on proximity or along a

    route.

    

“TCS’ Xypoint Mapping Server has a long history of providing mission

critical, location-based solutions to telecommunication companies and their

partners,” stated Timothy Lorello, Senior Vice President and Chief

Marketing Officer. “With this release, we are providing mapping and

navigation support features with powerful user interfaces, and the flexible

content integration features allow developers to customize and enhance the

value of the applications to the end user.”

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. Forward-looking statements within this release include

without limitation the prospect that detailed location-specific features

will be in demand by customers and consumers using mobile devices. Other

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.

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.

Media Contacts: TeleCommunication Systems, Inc. Meredith Allen 410-295-1865 MAllen@telecomsys.com Welz & Weisel Communications Evan Weisel 703-218-3555 evan@W2comm.com