DETROIT, Jan. 4, 2013 /PRNewswire/ -- As part of its continuing network investment and ongoing 4G LTE rollout, AT&T* has upgraded three mobile Internet cell sites in Ann Arbor, Beverly Hills and Birmingham to expand AT&T 4G LTE coverage for area residents and businesses. (Logo:...
Source : http://www.prnewswire.com/news-releases/att-expand...