Solution Ensures All Vonage Customers Can Reach a Live Operator for Emergency Services

ANNAPOLIS, MD and EDISON, NJ - July 25, 2005 - Vonage Network, a subsidiary of Vonage Holdings Corp., the leading provider of broadband phone service, today announced it has selected TeleCommunication Systems (TCS) (NASDAQ:TSYS), a leader in hosted and in -network wireless data technology, to provide emergency Voice -over -Internet Protocol (VoIP) call center service for Vonage customers. The TCS Response Center supplements TCS' E9 -1 -1 VoIP solution that has been selected by Vonage to comply with the recently published FCC VoIP E9 -1 -1 Order. It handles calls from all Vonage subscribers which cannot be routed directly to the nearest Public Safety Answering Point (PSAP). It is operator -staffed, 24 hours per day, seven days a week, 365 days per year.

9 -1 -1 calls from VoIP subscribers that cannot be automatically routed to the PSAP nearest to the caller's current location will be transparently routed to the TCS Response Center and answered by a live operator. The service is designed to ensure that all callers have access to a live operator trained to help them secure timely access to an emergency services provider. It avoids routing the user's 9 -1 -1 VoIP call to a pre -recorded message or to an administrative line that may not be staffed with a live 24/7 operator. The TCS Response Center operator answering the 9 -1 -1 VoIP call will confirm the location of the caller and transfer the call to the appropriate PSAP serving the caller's reported location. Even Vonage subscribers who have previously opted out of 9 -1 -1 service, but who place emergency calls can be directed to emergency assistance through the TCS Response Center.

"There is no higher priority than ensuring our customers' safety and security. To create an additional safety net for them, we have contracted with TCS to get our customers local help in the event they have an emergency and fall outside the standard procedures," said Jeffrey A. Citron, chairman and CEO of Vonage Holdings Corp. "We realize that there need to be alternatives and secondary procedures that we are providing today, during our nation -wide E9 -1 -1 roll -out. We believe that every Vonage caller trying to reach emergency services by dialing 9 -1 -1 must be connected to a live operator trained to provide assistance. We have selected the TCS Response Center to deliver this life -saving solution because of their demonstrated communications expertise and proven quality of service."

"TCS is making every effort to ensure that each Vonage 9 -1 -1 call is properly routed to the PSAP which is appropriate for the person in need of emergency response. The TCS Response Center adds an essential element of security for the VoIP user," said Maurice B. Tosé, Chairman, President and Chief Executive Officer for TCS.

About Vonage ®

Vonage has pioneered the broadband phone industry, setting the standard for pricing, features, call quality and reliability for the entire VoIP category. Vonage's award winning service is sold on the web and through national retailers like SAM's Club, RadioShack, Best Buy, Circuit City, Staples, Fry's Electronics, Office Depot and CompUSA. Vonage Holdings Corporation is headquartered in Edison, New Jersey. For more information about Vonage's products and services, please visit http://www.vonage.com or call 1 -VONAGE -HELP. Vonage(R) is a trademark of Vonage Marketing, a subsidiary of Vonage Holdings Corp.


TeleCommunication Systems, Inc. (TCS) (NASDAQ:TSYS) is a leading provider of mission critical wireless data technology. TCS -designed systems include location and messaging products deployed in wireless carrier networks, applications in enterprise networks for functions including logistics management and proof of delivery, and highly secure deployable communication systems used for government intelligence and defense. Messaging and location -based services, including wireless E 9 -1 -1, and direct wireless applications are hosted in the company's TL -9000 -certified network operations centers and may be available directly from the company or through subscriptions via wireless carriers. For more information visit www.telecomsys.com.

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