AT&T Invests in San Francisco-Area Wireless Network

SAN FRANCISCO, Dec. 30, 2011 /PRNewswire/ -- AT&T* today said it invested more than $100 million in its San Francisco-area wireless network in 2011.  Investments included building 70 cell sites and boosting capacity to improve customers' mobile voice and broadband...

Source : http://www.prnewswire.com/news-releases/att-invest...