AT&T Secures New Contract with Mesquite Independent School District

Texas School District Expands Bandwidth With AT&T

Mesquite, Texas, September 21, 2006

AT&T Inc. (NYSE: T) today announced a new optical services contract with Mesquite Independent School District (MISD), which serves more than 35,000 students in East Dallas County, Texas. Under the terms of the contract, AT&T will serve as the primary communications provider and will deliver AT&T GigaMAN® service to all 45 campus locations.

With AT&T GigaMAN service, a dedicated, fiber-optic, point-to-point gigabit Ethernet service, all 45 facilities will be connected to a single unified platform. This solution will allow MISD to implement a high-bandwidth network for reliable, secure communications across East Dallas County. The fiber-based network will provide upgraded bandwidth to the district, enabling MISD to execute advanced applications districtwide, including VoIP and video-on-demand service for an enhanced learning environment.

The new solution will ensure secure and consistent network access for instructors and students. With the converged network infrastructure, MISD will realize the reliability and expanded bandwidth necessary for the deployment of additional applications to increase student enrichment.

"We needed a provider capable of implementing a new, upgraded bandwidth solution to support our current needs," said Dennis Hevron, director of technical services, Mesquite Independent School District. "We are confident that the solution delivered by AT&T will provide upgraded bandwidth for a more secure and reliable fiber network, as well as sustain new applications, such as video-on-demand services for our instructors."

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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 Mesquite Independent School District
Mesquite Independent School District (MISD), established in 1901, serves more than 35,000 students in East Dallas County, Texas. With 45 campuses including 31 elementary schools, eight middle schools, five high schools and the Mesquite Academy, MISD encompasses an area of approximately 60 square miles. The school district has built a record of proud achievement in instructional program quality, policy development, efficiency of operation and student co-curricular activities. MISD is home to two nationally recognized Blue Ribbon Schools selected and honored by the U.S. Department of Education. For more information on Mesquite Independent School District, visit www.mesquiteisd.org.

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