Today AT&T made good on its promise to bring improvements to its 3G network in select U.S. cities. It has added 850MHz spectrum support to some 540 cell sites that are already providing 1900MHz coverage. By adding this spectrum, AT&T customers should see an improvement in 3G service, as it boosts capacity and improves in-building coverage. The areas included are downtown Atlanta and parts of Fulton, DeKalb, North Fulton, Cobb, Gwinnett, and Fayette Counties. AT&T plans to do the same thing to a handful of other U.S. cities by the end of 2009, including New York and San Francisco.
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