AT&T IP Voice Service Receives Tmc 2005 VoIP Product of the Year Innovation Award

Recognized AT&T VoIP Services Four Times for 2005 Market Leadership

Bedminster, New Jersey, January 23, 2006

AT&T Inc. (NYSE: T) announced today that TMC has selected AT&T as the recipient of its 2005 VoIP Product of the Year Award for AT&T Voice Dynamic Network Applications(SM) (DNA) service. This most recent award is the fourth such recognition bestowed on AT&T VoIP services for market leadership in 2005.

AT&T Voice DNA is a network-based Voice over IP (VoIP) service that combines the cost and functionality benefits of a premises-based VoIP service with the flexibility, control and reduced capital expenditures of network-based IP services.

As the recipient of the 2005 VoIP Product of the Year Award, TMC noted that AT&T's unique ability to deliver solutions with a world-class customer experience set it apart in the marketplace.

"AT&T has been providing VoIP solutions to our business customers for nearly a decade," said Mark Keiffer, AT&T Chief Marketing Officer-Business. "So it's gratifying to have the innovation, performance and reliability of our VoiceDNA service recognized by such a well-respected magazine."

AT&T offers one of the most comprehensive VoIP portfolios in the industry and late last year was also the recipient of three 2005 VoIP Service Provider Awards presented by Internet Telephony magazine, a TMC publication. These Best-in-Class awards recognized the AT&T CallVantage Service and its excellence in innovation and awareness, customer care and VoIP number portability.

AT&T continues to integrate new business applications into its VoIP portfolio to provide customers with a foundation for future Dynamic Network Applications such as conferencing, video and collaboration.

About TMC®
Technology Marketing Corporation (TMC) publishes four print magazines: Customer Interaction Solutions, Internet Telephony, SIP Magazine and IMS Magazine; as well as the digital publications, Speech-World, WiFI Telephony Magazine, VoIP Developer, IPTV Magazine and WiMAX Magazine. TMC also produces TMCnet, the world's leading communications and technology Web site. TMC is also the first publisher to test new products in its own on-site laboratories, TMC Labs. TMC produces INTERNET TELEPHONY Conference & EXPO, The VoIP Developer Conference, Speech-World Conference, IP Contact Center Summit and The Global Call Center Outsourcing Summit. TMCnet, ranked among the top 2,500 Web sites in the World by Alexa.com, publishes more than 20 topical online newsletters. For more information about TMC, visit http://www.tmcnet.com.

About the New AT&T
AT&T Inc. is one of the world's largest telecommunications holding companies and is the largest in the United States. Operating globally under the AT&T brand, AT&T companies are recognized as the leading worldwide providers of IP-based communications services to business and as leading U.S. providers of high-speed DSL Internet, local and long-distance voice, and directory publishing and advertising services. AT&T Inc. holds a 60 percent ownership interest in Cingular Wireless, which is the No. 1 U.S. wireless services provider with more than 52 million wireless customers. Additional information about AT&T Inc. and AT&T products and services is available at www.TheNewATT.com .

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