Cancer Treatment Centers of America Selects AT&T to Provide Network Services

Solutions Enhance Information Transmission and Management for Network of Cancer Treatment Facilities

Schaumberg, Illinois, July 31, 2007

AT&T Inc. (NYSE:T) today announced the implementation of advanced network solutions for Cancer Treatment Centers of America (CTCA). CTCA is a national leader in cancer treatment, specializing in complex and advanced-stage disease.

With headquarters in Schaumburg, Ill., the CTCA approach to cancer treatment fully integrates state-of-the-art medical care with scientifically supported complementary therapies like nutrition, naturopathy, physical therapy, psychosocial counseling and spiritual support. The unique CTCA, patient-focused approach to cancer treatment is provided at its facilities located in Suburban Chicago, Tulsa, Philadelphia, Seattle and a new facility planned for the Greater Phoenix area.

AT&T will supply network solutions to CTCA's Schaumburg and Zion locations, protecting the facilities' access and daily data transmissions from interruptions. As a secure connection, AT&T's Optical Carrier 3 (OC3) Sonet Rings will provide a scalable interface capable of handling the network's diverse signals and the capacity for multiple user access from its Schaumburg and Zion locations.

AT&T's Sonet technology will also support future infrastructure upgrades and enhancements by CTCA. Using bidirectional lines structured into a ring, the Sonet consolidates Ethernet, data, video and voice traffic onto a single transport that maximizes bandwidth. The ring's multiple-line architecture provides redundancy, protecting CTCA's network services from catastrophic fiber cuts, service interruptions and other security hazards.

"At CTCA, everything we do is focused on improving our patients' treatment experience," said Chad A. Eckes, chief information officer for CTCA. "Our ability to access real-time patient medical information 24 hours a day, seven days a week is critical to our commitment to providing our patients with the most efficient, highest-quality cancer care in the country. AT&T's reliable network solutions and our redundant design will allow us to operate more efficiently and confidently while maintaining a continuous flow of electronic medical information to the clinician."

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About Cancer Treatment Centers of America
Founded in 1988, Cancer Treatment Centers of America (CTCA) provides a comprehensive, patient-centered treatment model that fully integrates traditional, state-of-the-art medical treatments with scientifically-supported complementary therapies such as nutrition, naturopathy, psychological counseling, physical therapy and spiritual support to meet the special, whole-person needs of advanced-stage cancer patients. With a network of cancer treatment hospitals and community oncology programs in Illinois, Oklahoma, Pennsylvania, Washington with a new hospital scheduled to open in Arizona in winter 2008, CTCA encourages patients and their families to participate in treatment decisions through its Patient Empowerment MedicineSM model.

About AT&T
AT&T Inc. (NYSE: T) is a premier communications holding company. Its subsidiaries and affiliates, AT&T operating companies, are the providers of AT&T services in the United States and around the world. Among their offerings are the world's most advanced IP-based business communications services and the nation's leading wireless, high speed Internet access and voice services. In domestic markets, AT&T is known for the directory publishing and advertising sales leadership of its Yellow Pages and YELLOWPAGES.COM organizations, and the AT&T brand is licensed to innovators in such fields as communications equipment. As part of its three-screen integration strategy, AT&T is expanding its TV entertainment offerings. Additional information about AT&T Inc. and the products and services provided by AT&T subsidiaries and affiliates is available at

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