TSYS (MM)

TeleCommunication Systems, Inc. (TCS) (NASDAQ: TSYS), a global leader in mission-critical wireless communications technology, will hold a conference call on Thursday, October 30, 2008 at 5:00 p.m. Eastern Time to discuss results for the third quarter ended September 30, 2008. Financial results will be issued in a press release after the close of the market the same day.

TeleCommunication Systems' chairman, president and CEO, Maurice B. Tos�, and senior vice president and CFO, Tom Brandt, will host the presentation, followed by a question and answer period.

Date: Thursday, October 30, 2008
Time: 5:00 p.m. Eastern Time (2:00 p.m. Pacific Time)
Dial-In Number: 1-800-862-9098
International: 1-785-424-1051
Conference ID#: 7TELECOM

The conference call will be broadcast simultaneously and available for replay via the investor section of the company's Web site at www.telecomsys.com.

Please call the conference telephone number 5-10 minutes prior to the start time. An operator will register your name and organization and ask you to wait until the call begins. If you have any difficulty connecting with the conference call, please contact the Liolios Group at 949-574-3860.

A replay of the call will be available after 8:00 p.m. Eastern Time on the same day and until November 30, 2008:

Toll-free replay number: 1-800-695-0395
International replay number: 1-402-220-1388
(No passcode required)

About TeleCommunication Systems

TeleCommunication Systems, Inc. (TCS) (NASDAQ: TSYS) engineers and delivers highly reliable wireless communications technology. TCS is a leader in wireless text messaging and location-based technology, including E9-1-1 services and commercial applications like navigation that use the precise location of a wireless device, and secure satellite-based communications systems and services. Customers include leading wireless and VoIP carriers around the world, cable MSOs, automotive telematics vendors, and agencies of the U.S. Departments of Defense, State, and Homeland Security. TCS is one of six primary vendors on a $5 billion Army Worldwide Satellite Systems Contract vehicle. For more information, visit www.telecomsys.com.

Company Contacts: Tom Brandt Senior Vice President and CFO TeleCommunication Systems, Inc. Tel 410-280-1001 tbrandt@telecomsys.com Scott Liolios or Matt Glover Investor Relations Liolios Group, Inc. Tel 949-574-3860 info@liolios.com