Comcast and Vonage Form Collaboration to Address Network Management and Better Meet Customer Needs

PHILADELPHIA, PA and HOLMDEL, NJ, July 9, 2008 -- Comcast Corporation and Vonage Holdings Corporation announced today a collaborative agreement to address the reasonable network management of Internet services. Comcast committed to work together with Vonage to ensure that network management techniques are chosen that effectively balance the need to avoid network congestion with the need to ensure that over-the-top Voip services like Vonage work well for consumers.

"This agreement helps Vonage to ensure that customers have the best possible Internet experience," said Louis Mamakos, Vonage Chief Technology Officer. "Although we're competitors with Comcast, this understanding helps our two companies work together to balance the needs of network management with consumers' ability to freely access the services, applications and content of their choice."

"This collaboration with Vonage, and our outreach to many key participants in the Internet community, demonstrate that we are committed to provide network management solutions that benefit consumers and competition" said Tony Werner, Comcast Chief Technology Officer.

This is the latest in a series of announcements related to Comcast's network management practices that demonstrate the company's commitment to ensure that its customers' ability to use any application or access any content they choose while avoiding network congestion situations that could affect the consumer experience. In March, Comcast announced it would move to a protocol-agnostic network management approach by the end of 2008, and tests on this approach have already begun. Comcast has announced other collaborations with BitTorrent, Inc. and Pando Networks, as well as participation in the P4P Working Group organized by the Distributed Computing Industry Association (DCIA). Comcast has also participated in the IETF Workshop on P2P Infrastructure, and will continue to collaborate in the IETF with other ISPs, P2P providers, and others on technologies related to network management and P2P application development.

About Comcast Corporation Comcast Corporation (Nasdaq: CMCSA, CMCSK) (http://www.comcast.com) is the nation's leading provider of entertainment, information and communications products and services. With 24.7 million cable customers, 14.1 million high-speed Internet customers, and 5.2 million voice customers, Comcast is principally involved in the development, management and operation of broadband cable systems and in the delivery of programming content.

Comcast's content networks and investments include E! Entertainment Television, Style Network, The Golf Channel, VERSUS, G4, PBS KIDS Sprout, TV One, ten Comcast SportsNet networks and Comcast Interactive Media, which develops and operates Comcast's Internet business. Comcast also has a majority ownership in Comcast-Spectacor, whose major holdings include the Philadelphia Flyers NHL hockey team, the Philadelphia 76ers NBA basketball team and two large multipurpose arenas in Philadelphia.

About Vonage Vonage (NYSE: VG) is a leading provider of broadband telephone services with 2.6 million subscriber lines. Our award-winning technology enables anyone to make and receive phone calls with a touch tone telephone almost anywhere a broadband Internet connection is available. We offer feature-rich and cost-effective communication services that offer users an experience similar to traditional telephone services. Our Residential Premium Unlimited and Small Business Unlimited calling plans offer consumers unlimited local and long distance calling, and popular features like call waiting, call forwarding and voicemail - for one low, flat monthly rate. Vonage's service is sold on the web and through national retailers including Best Buy, Circuit City, Wal-Mart Stores Inc. and Target and is available to customers in the U.S., Canada and the United Kingdom. For more information about Vonage's products and services, please visit http://www.vonage.com. Vonage Holdings Corp. is headquartered in Holmdel, New Jersey. Vonage^® is a registered trademark of Vonage Marketing Inc., a subsidiary of Vonage Holdings Corp.