AT&T adds sites in Charleston SC

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AT&T Launches New Cell Sites and Announces 3G Deployment Plans in Charleston

Latest Network Enhancements Come As AT&T Gears Up to Deliver Supercharged Mobile Access, Interactive Content and Mobile Applications

Charleston, South Carolina, November 6, 2007

AT&T Inc. (NYSE:T), the nation's largest wireless carrier, today announced an upgrade and expansion of service by launching new cell sites to enhance the wireless network in the Charleston area. Also, AT&T will deploy its upgraded third-generation (3G) broadband mobile network in early 2008. This will give customers the ability to access voice and high speed data features simultaneously, as well as more options in how, when and where they can access the Internet, use e-mail or view a variety of entertainment services.

"We want to provide the best service possible for all of our customers in Charleston, which we consider a major market in the Carolinas," said Alison Hall, vice president and general manager for the company's North and South Carolina market. "These new cell sites, along with 3G deployment, help us to provide superior coverage to give customers an 'invisible wire' that extends their broadband experience beyond their office or home."

Currently, AT&T is adding additional cell sites to strengthen in-building and residential coverage in the following areas:

Highway SR-10-57, west of Drayton
Commercial and residential areas of Summerville
Highway SR 8-33 and I-526 in North Charleston
Daniel Island Park
US Naval Weapons Station north of Charleston
Sullivans Island
Kiawah Island
Urban area of downtown Charleston
Commercial and residential areas in the West Ashley area
Johns Island and surrounding Charleston Executive Airport
Rutledge Avenue in northern Charleston
North Rhett Avenue, north of I-526 and the southern portion of the US Naval Weapons Center in Goose Creek

With AT&T's 2008 deployment of its 3G network in Charleston, the city will join a growing list of markets in the Carolinas with 3G coverage that already includes Columbia, S.C., Myrtle Beach, S.C., Charlotte, N.C., Raleigh, N.C. and Greensboro, N.C. As part of AT&T's 2008 launch plans for the Carolinas, the company is also scheduled to deploy its 3G broadband network in Greenville, S.C., Spartanburg, S.C., Clemson, S.C. and Jacksonville, N.C. Since 2004, the company has invested nearly $230 million on wireless network enhancements to expand coverage, add capacity and grow its 3G network in South Carolina.

"This expansion is evidence of our ongoing commitment to invest in the state of South Carolina," said Cynthia Marshall, state president of South Carolina. "AT&T will continue to invest in the communications infrastructure essential for this state's growth."

PERSONAL MOBILITY — FAST AND FURIOUS
AT&T customers can use their 3G handsets to quickly access feature-rich wireless content, including videos, games, pictures and the latest music, entertainment, news and weather, through MEdia Net. Consumers can view razor-sharp clips through CV, an on-demand streaming video service that offers a comprehensive library of mobile video content of the top media brands. AT&T also offers exciting new wireless applications such as Video Share, a unique service that lets consumers stream live video over wireless phones while having a voice call.

"Video Share is another example of how advanced wireless services are changing our everyday lives," said Hall. "It's exciting to be able to show others exactly what you see when you see it and to share that experience from across town or around the country."

MOBILIZING BUSINESS AT HIGH SPEED
AT&T's 3G network also offers AT&T LaptopConnect mobile customers DSL-like speeds for their laptops, with the ability to access the Internet, their company's intranet or corporate e-mail from anywhere within the 3G network. All AT&T-enabled smart devices and LaptopConnect cards are interoperable between the company's 3G and nationwide* EDGE (Enhanced Data Rates for GSM Evolution) networks. Additionally, customers can use AT&T's LaptopConnect cards and smart devices to access 3G, EDGE or GPRS (General Packet Radio Service) in 135 countries worldwide.

THE BENEFITS OF AT&T's 3G NETWORK
AT&T's 3G broadband network uses UMTS/HSDPA (Universal Mobile Telecommunications Systems/High Speed Downlink Packet Access), the high speed evolution of GSM/EDGE, which shares a common core network and is backward compatible with EDGE/GPRS. UMTS/HSDPA provides average download data speeds between 400 Kbps and 700 Kbps (kilobits per second) with bursts to more than 1MB. The company currently offers high speed services in more than 170 major metropolitan areas across the country. UMTS/HSDPA technology makes it possible for people to enjoy a wide variety of wireless content and gives AT&T the advantage of offering simultaneous voice and data services to customers based upon the Global Standard for Mobile communications — GSM. More than 2.6 billion people use wireless devices powered by GSM — representing more than 85 percent of the world's wireless users.

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