U.S. Healthworks Signs Networking Agreement with AT&T

Alpharetta, Georgia, March 29, 2006

AT&T announced today that it has signed a three year, $2 million agreement with U.S. HealthWorks to provide Internet Protocol Virtual Private Network (IP VPN), Internet access and networking hardware for its 120 domestic locations. The two companies have a separate, existing contract by which AT&T provides U.S. HealthWorks with local and long-distance voice services.

Under this new agreement, AT&T will support a sophisticated network infrastructure that upgrades the existing frame relay and IP network of U.S. HealthWorks to a single AT&T IP VPN and MIS solution. U.S. HealthWorks will benefit from increased bandwidth and reliability.

"The AT&T network upgrade solution was a clear choice because of its ability to support our multi-site business model, together with its cost, quality and features," said Steve Essayan, Enterprise Solutions Director for U.S. HealthWorks. "It provides a fault-tolerant enterprise environment that supports current network requirements, as well as scalability to support future web-based systems, imaging and voice over IP applications."

About U.S. HealthWorks
Headquartered in Alpharetta, Georgia, U.S. HealthWorks operates a national network of freestanding clinics where the U.S. HealthWorks Medical Group provides occupational health and urgent care services. The medical group is currently the second-largest provider group of its type in the United States and the largest provider of primary occupational medicine in California and Washington. Its mission is to help patients recover quickly and to reduce overall costs by providing the right care, right away. For more information, visit www.ushealthworks.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.