TCS Launches Enhanced Messaging Solution for Mobile Virtual Network Operators

Market Wire, April, 2006

CTIA - Booth 1635 -- TeleCommunication Systems, Inc. (TCS) (NASDAQ: TSYS), a leading provider of mission critical wireless communications, today announced the availability of its Mobile Virtual Network Operator (MVNO) messaging solution. TCS' feature-rich MVNO application is designed to help carriers and data-centric MVNOs deploy enhanced messaging services. The application provides a branded consumer messaging portal and supports e-mail-to-mobile messaging.

The TCS solution maximizes economies of scale achieved with a common platform and provides a proven mechanism for carriers and MVNOs to showcase their unique brand identities. With TCS' MVNO solution, carriers are able to provide a full suite of messaging services to their subscribers while simultaneously enabling MVNOs to build innovative, branded mobile content and services.

The MVNO solution is based on TCS' patented Wireless Messaging Gateway (WMG) platform. TCS' messaging portal reinforces the MVNO branding while providing subscribers with the ability to personalize their messaging experiences. From this portal, subscribers have access to community messaging, personalized alerts and control over spam. By adding the Single-Sign-On (SSO) capability, the MVNO can provide subscribers with seamless, secure access to other content partner sites. TCS' WMG facilitates delivery of text messages, e-mails, alerts and other multimedia content to wireless devices from a variety of sources, driving increased messaging revenue. TCS' consumer-branded messaging applications currently are used within United States' carrier networks that service over 50 million subscribers.

"TCS is driving next-generation wireless services with advanced messaging features that enable our carrier and MVNO customers to realize additional revenues from their MVNO partners," said Drew Morin, Chief Technology Officer for TCS. "A wealth of specialized messaging applications is viable with our MVNO-branded offerings. These differentiated services not only provide opportunities to drive revenue growth, but also to further enhance consumer awareness of the brand experience."

TCS will demonstrate the MVNO solution in its booth, number 1635, at Cellular Telecommunications and Internet Association (CTIA) Wireless 2006, the wireless industry's largest international tradeshow.

ABOUT TELECOMMUNICATION SYSTEMS, INC.

TeleCommunication Systems, Inc. (TCS) (NASDAQ: TSYS) is a leading provider of mission critical wireless communications 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 TCS in booth 1635 at CTIA Wireless 2006 in Las Vegas or the company's Web site at 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 when anticipated, (ii) continue to rely on its customers and other third parties to provide additional products and services that create a demand for 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 and provide services 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.

Media Contacts: TeleCommunication Systems, Inc. Rita Thompson 410-295-1865 Email Contact Welz & Weisel Communications Jane Bryant 703-323-6006 Email Contact