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AT&T CallVantage Service - att callvantagesm

Thank you for your interest in AT&T CallVantage® service. Currently we are not accepting new orders for AT&T CallVantage service. We will continue to evaluate our AT&T CallVantage ...

Detail : AT&T CallVantage - dslreports.com - att callvantagesm

AT&T CallVantageSM Service uses advanced new technology to convert your voice into data that enables you to place and receive calls over your broadband connection.

AT&T News Release, 2005-01-06, Staples to Offer AT&T CallVantage ... - att callvantagesm

SPLS) is offering AT&T CallVantageSM Service, the company's residential Voice over Internet Protocol (VoIP) broadband phone service in its 1,200 stores nationwide.