Vonage, AT&T Top VOIP Ratings
July 14, 2005
Vonage was found to be the most reliable VoIP vendor in a study released this week, with AT&T's CallVantage Service lauded as having the best voice quality.
July 14, 2005
Vonage was found to be the most reliable VoIP vendor in a study released this week, with AT&T's CallVantage Service lauded as having the best voice quality.