AT&T Secures New Contract with El Dorado Union High School District

Placerville, California, September 15, 2006

AT&T Inc. (NYSE: T) today announced a new optical services contract with El Dorado Union High School District (UHSD), a California school district with six high school campuses and administrative offices serving the El Dorado County area.

Under the terms of the five-year contract, AT&T will install its OPT-E-MAN® switched Ethernet service at El Dorado UHSD locations, increasing the district's bandwidth and giving the district greater scalability. The wide area network (WAN) also allows for communications between the schools and the district office through pure Ethernet connectivity. The solution will deliver increased reliability via the converged network infrastructure, which helps to ensure protection from network outages during inclement weather.

In addition, the optical network will enable centralized control of the WAN from the district office for increased security and network redundancy, enabling data transfer and the retrieval of student records. Ultimately, the solution will help the district deploy advanced bandwidth intensive applications, such as video streaming for distance learning and administration and Voice Over Internet Protocol (VoIP) for clear, crisp phone calls without the interruption of data transfers. It will also allow the district to discontinue older and costly analog voice services.

"As our district continues to grow, so does our need for a centralized, reliable network that can support advanced bandwidth-intensive learning applications and technologies," said Stephen Luhrs, assistant superintendent of business services, El Dorado Unified High School District. "The OPT-E-MAN solution provided by AT&T will reliably meet our current needs, and it provides a flexible platform to extend our bandwidth in the future."

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About 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 57.3 million wireless customers. Additional information about AT&T Inc. and AT&T products and services is available at www.att.com.

About El Dorado Union High School
The El Dorado Union High School District serves more than 7,400 students who enter high school from 12 feeder elementary districts. Students are supported by more than 350 certificated and 240 classified staff. Visit http://www.eduhsd.k12.ca.us for more information.

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