marketStream Release 3.0 Enhances Market Data Delivery to Global Finan

    Business Editors/Technology Editors

    ANNAPOLIS, Md.--(BUSINESS WIRE)--April 18, 2005--

    Leading Provider of Real-Time, Wireless Streaming Market Data Adds Multiple Watchlists, Web Management Tools, and More to Its Latest Release

    TeleCommunication Systems, (TCS) (NASDAQ:TSYS), a leader in mission critical wireless data, has announced that its real-time, wireless streaming market data solution, marketStream(TM), now offers even more advanced features for global trading institutions and market traders.
    marketStream 3.0's newly added functionality includes a multiple watchlist feature that supports up to 200 watchlists, with more than 65 symbols per list. Users are able to configure personal watch lists to display any three fields of data simultaneously on the main live-data screen. Release 3.0 also includes a web management feature that enables users to log in from any browser to manage their watchlists, alerts and 32nds display (needed for certain indices such as Treasury bills), perform symbol searches and configure symbol aliases.
    These new features build upon marketStream's true streaming data delivery of continuous live market data and news feeds from Comstock and Dow Jones that are managed by TCS' Network Operations Center. Data is delivered in real-time to the marketStream application running on the subscriber's mobile device as if the user was actually standing on the trading floor viewing the ticker. This delivery of "live" data via marketStream is in sharp contrast to the more common wireless "polling" applications which only update data on pre-set scheduled frequencies.
    In addition, marketStream is a Research In Motion (RIM) approved BlackBerry(R) add-on application; and since TCS is a leading BlackBerry provider, special bundling incentives are available for BlackBerry and marketStream purchases. marketStream may also be downloaded for use on most Java (J2me) enabled wireless devices using high-speed GSM, CDMA or IDEN networks.
    "TCS' marketStream product has again set an industry standard for wireless streaming market data that is truly 'real-time'," stated Gregg Smith, Senior Vice President of the TCS Enterprise Division. "While many providers offer polling solutions that have inherent delays, marketStream subscribers receive data instantaneously, anywhere, anytime on a wide variety of mobile devices due to our unparalleled 'real time' delivery mechanism. With the new features in release 3.0, our subscribers have even more choices on how to make the most of their market data, and TCS' global presence enables us to seamlessly support international marketStream deployments."

    ABOUT TELECOMMUNICATION SYSTEMS, INC.

    TeleCommunication Systems, Inc. (TCS) (NASDAQ:TSYS) is a leading provider of mission critical wireless data solutions to carriers, enterprise and government customers. TCS' wireless data offerings include location-based Enhanced 9-1-1 services, and messaging and location service infrastructure for wireless operators, real-time market data and alerts to financial institutions, mobile asset management and mobile office solutions for enterprises, and encrypted satellite communications to government customers. For more information visit www.telecomsys.com.

    This announcement contains forward-looking statements within the meaning of 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 based upon TCS' current expectations and assumptions that are subject to a number of risks and uncertainties that would cause actual results to differ materially from those anticipated.
    The actual results realized by the Company could differ materially from the statements made herein, depending in particular upon the risks and uncertainties described in the Company's filings with the Securities and Exchange Commission (SEC). These include without limitation risks and uncertainties relating to the Company's financial results and the ability of the Company to (i) reach and sustain profitability as early as anticipated, (ii) continue to rely on its customers and other third parties to provide additional products and services that create a demand its products and services, (iii) conduct its business in foreign countries, (iv) adapt and integrate new technologies into its products, (v) expand its business offerings in the new wireless data industry, (vi) develop software without any errors or defects, (vii) protect its intellectual property rights, and (viii) implement its sales and marketing strategy.
    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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CONTACT: TeleCommunication Systems Rita Thompson, 410-295-1865 thompsonr@telecomsys.com

KEYWORD: MARYLAND INDUSTRY KEYWORD: HARDWARE TELECOMMUNICATIONS SOFTWARE NETWORKING PRODUCT SOURCE: TeleCommunication Systems

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