IST's DeltaStream® powers marketStream, recently launched by TeleCommunication Systems Ltd in Europe

Subsequent to the publication of this Press Release Aether Systems was fully absorbed into TeleCommunication Systems and subsequently TeleCommunication Systems was fully absorbed into Stockgroup.

For more information about DeltaStream Mobile please go to the DeltaStream Mobile page. For more details about marketStream see our marketStream Story, Stockgroup's marketStream Product Overview (5.18MB PDF) and Stockgroup's marketStream White Paper (PDF). Alternatively contact IST's Sales Desk (email: sales@ist.co.uk)

The following is Aether's/TCS's Press Release announcing marketStream.

London, February 3, 2004 - Aether Systems Ltd., a European subsidiary of TeleCommunication Systems, Inc. (TCS) (NASDAQ: TSYS), the world's largest wireless market data provider, today announced the launch of another new product, marketStream. High end users now have global access to streaming equities, foreign exchange rates, futures, commodities and fixed income prices as well as news and charts via their mobile phone or PDA.

marketStream follows in the footsteps of Aether's popular financial paging offering, formerly known as the miniREUTERS. Totally wireless and with global coverage, marketStream utilises Global Packet Radio Service (GPRS) and 3rd generation networks to stream market data to any Java enabled mobile device, on any network in any institution.

Morten Nielsen, Managing Director of Aether Systems Ltd, comments, "We are really proud of marketStream. Basically it's a desktop terminal without the desk. It is the only feature-rich, streaming wireless solution for the financial markets available as a standalone product, so users are not tied to any specific market data vendor or network. Also, because we have focused on this market for over 15 years, our excellent relationships with the Exchanges mean we provide a uniquely comprehensive range of market data."

As GPRS makes real-time streaming possible, the users of marketStream receive essential market information sooner than with paging or snapshot products. Furthermore, as a Java client designed specifically for wireless market data streaming, marketStream uses available bandwidth more efficiently than most wireless browser-based solutions. This results in a quicker and higher return on the user's investment since the user can react more rapidly to market fluctuations and make more informed trading decisions.  Utilizing packet-based networks ensures the marketStream user is always connected and only pays for the volume of data sent.

Significant features of marketStream include:

• Alerting Capability - users can set limit alerts on instruments tracked in their watch list so they are instantly aware of any price changes.
• Intraday Charts - marketStream displays intraday charts and detailed data for an individual stock index or instrument.
• Real-time news - news stories from Dow Jones Newswires are streamed direct in real time. News is delivered as headlines with the option to view the full story.

Aether's technology is today's most widely used standard for wireless delivery of market data.

For more information about marketStream please contact:

Kelly Lewis
660º
Tel: +44 207 959 5536
Email: Klewis@660degrees.com

About Aether Systems, Ltd. and TeleCommunication Systems, Inc.

Aether Systems, Ltd., a European subsidiary of TeleCommunication Systems, Inc. (TCS) (NASDAQ:TSYS), is the leader in providing mission critical financial data to mobile professionals throughout Europe.

TeleCommunication Systems, Inc. is a leading provider of mission critical wireless data solutions to carriers, enterprise and government customers.  TCS wireless data offerings range from providing location-based Enhanced 9-1-1 services in the U.S. and messaging infrastructure to 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. 

###