COMCAST SELECTS TOLLBRIDGE FOR CABLE TELEPHONY SERVICE
Comcast Uses TollBridge TB300 Gateway in Trial of New Cable Telephony Service Technology in Detroit Industry Coverage Santa Clara, CA, April 10, 2002 hotel rates Naples country - Tollbridge Technologies, a leading provider of voice-over-broadband solutions for telephony service providers, announced today that it has successfully completed testing advancements in voice-over-IP (VoIP) technology with Comcast Cable Communications Inc., the cable division of Comcast Corporation, (NASDAQ: CMCSK; CMCSA). In a six-month residential trial in the Detroit market, Comcast used TollBridge's TB300 gateway to test VoIP access technology over its broadband network. The trial used IP packet data technology, employing the CableLabs DOCSIS and PacketCable standards, to replace traditional Constant Bit Rate (CBR) technology as the means to connect telephones in trial participants' homes to Comcast's Headend, where TollBridge's TB300 was used to provide the "IP-to-circuit switched" interface to a traditional 5ESS telephone switch. The trial results demonstrate the potential benefits of more flexible and economical packet data technology, such as the development of services beyond those currently available using conventional telephone technologies. Eskilstuna accommodationTollBridge's unique approach to VoIP enables standard Internet access equipment to carry high-quality digital voice conversations while connecting the callers to traditional proven telephone switching equipment. This solution can be used to accelerate the long-awaited availability of VoIP by providing a gateway between now-in-place broadband access equipment and the existing public switched telephony network. "Comcast has been evaluating next-generation voice-over-IP services to offer greater benefits to our subscribers, and TollBridge's approach proves to be an ideal way to utilize our broadband IP data infrastructure as well as the existing capacity of embedded switches to accelerate the potential for telephony deployment," said Steve Craddock, Senior Vice President of New Media Development at Comcast. "This trial demonstrates our ability to provide voice services at substantially reduced infrastructure costs when compared to traditional current circuit-switch methods, while providing a roadmap to seamlessly migrate to the end-to-end VoIP network of the future. Based on the success of the trial, we will be evaluating possible expansion of the service over a broader geographical area in the Detroit area in the coming months" alberghi a Bilbao"Completion of testing with Comcast is an important milestone for TollBridge because it validates our product strategy and provides an alternative for Comcast to offer cable telephony services to their subscribers without waiting for the full completion of the end-to-end VoIP network," said Gary Tauss, TollBridge President and CEO. "Comcast can deliver new telephony services today, without replacing existing subscriber equipment, and be assured of a migration path to soft-switch and next generation VoIP services when ready. Plus, it's really great for consumers because cable voice leads to more services for less money." "Put simply, our telephony gateway is deployable within the existing cable network infrastructure, delivers carrier-quality voice service for subscribers, and will provide significant revenue and profit opportunities for Comcast and other cable service providers," added Tauss. About Comcast Cable Communications Headquartered in Philadelphia, Comcast Cable is a division of Comcast Corporation (www.comcast.com), a developer, manager and operator of broadband cable networks and provider of programming content. Comcast Cable is the third largest cable company in the United States. Providing basic cable, digital cable and high speed Internet services, Comcast Cable is the company to look to first for the communications products and services that connect people to what's important in their lives. The company's approximately 18,000 cable division employees serve more than 8.4 million customers in six geographic regions. ERROR MSGAbout TollBridge Technologies Founded in March 1998 and located in Santa Clara, Calif., TollBridge Technologies is the market share leader providing voice-over-broadband solutions for service providers, with more than 40,000 lines in active commercial use. TollBridge carrier-class solutions enable Multiple Systems Operators (MSOs) and other carriers to deliver cost-effective, toll-quality voice and integrated data services to small business and consumer markets over any broadband access technology including cable, DSL, and wireless networks. For further information visit us at www.tollbridgetech.com. alberghi a JurmalaTollBridge and TollVoice are trademarks of TollBridge Technologies, Inc. All other service marks and trademarks are the property of their respective owners. | 
