AT&T (American Telephone and Telegraph)


AT&T is the largest phone company (both wired and wireless) in the United States with over 70 million wireless customers and more than 150 million total customers

AT&T had a VOIP service called: CallVantage

See Also

Where to Buy:

Created by: admin, Last modification: Tue 16 of Jun, 2009 (17:27 UTC) by td
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