AT&T Announces New Five-Year Voice and Data Services Contract with Advanced Healthcare

Wisconsin Healthcare Provider Increases Capabilities, Improves Network

Milwaukee, Wisconsin, March 23, 2006

AT&T Inc. (NYSE: T) today announced a new optical and data-networking services contract with Advanced Healthcare, the largest physician-led, multispecialty clinic group in southeastern Wisconsin.

Under the terms of the five-year contract, AT&T will expand Advanced Healthcare's bandwidth through implementation of a fully redundant Synchronous Optical Network (SONET) ring to six locations throughout the state. With the additional bandwidth, Advanced Healthcare will be able to consolidate large amounts of voice, data and video traffic from its various locations to a single, fail-safe platform, increasing efficiency and improving overall patient care.

These services will also support an X-ray Picture Archiving and Communication System (PACS), which can store, display and transmit all types of digital medical images across Advanced Healthcare's network. Additionally, because of its increased capabilities, Advanced Healthcare will have the capacity to set up a disaster recovery site that mirrors the current data center. AT&T companies are the primary provider of voice and data services to Advanced Healthcare.

Furthermore, this solution aligns with AT&T's convergence strategy, enabling Advanced Healthcare's network to deliver unprecedented levels of efficiency and productivity.

"We were seeking a communications provider that would enable us to uphold our reputation of offering quality healthcare service through the most technologically advanced applications," said Edith Schneider, telecommunications manager for Advanced Healthcare. "We're certain that AT&T companies will supply us with premium services and equipment, allowing us to stay on the cutting edge of technology and consistently deliver first-rate patient care in more than 30 specialties."

"We're delighted to be Advanced Healthcare's primary communications provider," said Vicki Jones, president-Business Communications Services, AT&T Global Services, Inc. "Our optical networking services will allow Advanced Healthcare to increase its communications capabilities and enhance its network so that it can support new technologies, resulting in improved patient care."

About Advanced Healthcare
Advanced Healthcare was created in January 1998 and is the largest physician-led, multispecialty clinic group in southeastern Wisconsin. For more than 30 years Advanced Healthcare's physicians have been providing quality healthcare and offering the latest information and services in more than 30 specialties. With 14 clinics located throughout Milwaukee, Ozaukee, Washington and Waukesha counties in the metro Milwaukee area of southeastern Wisconsin, Advanced Healthcare offers nearly 250 primary care and specialty physicians along with the resources necessary to ensure its patients' best health. Additional information about Advanced Healthcare is available at www.ah.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 54 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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