AT&T recently stopped offering its CallVantage VoIP service to new subscribers. With no official announcement, online shoppers for the service were greeted with a message thanking would-be customers ...

Companies will offer Avaya products with AT&T services.Telecom giant AT&T (NYSE: T) in New York City and business communications provider Avaya of Basking Ridge have formed a strategic alliance to ...

AT&T, which informed Apple and the Federal Communications Commission (FCC) of its decision Tuesday, had in the past only allowed Internet phone services to run on iPhone over WiFi connections. AT&T ...

Join our daily and weekly newsletters for the latest updates and exclusive content on industry-leading AI coverage. Learn More AT&T, the iPhone’s exclusive wireless carrier in the United States, said ...

Continuing our discussion on how voice over IP has come of age, today we’d like to highlight the announcement AT&T made last month as it unveiled a “major voice over Internet initiative.” While AT&T ...

In a letter to the FCC, AT&T acknowledged that Apple and AT&T have an agreement to block VoIP apps from using AT&T's cellular networks, but that VoIP apps that use Wi-Fi are OK. Here's a selection ...

The Basking Ridge, N.J.-based carrier vowed to include business and enterprise offerings in its new approach, but executives declined to reveal exactly how much these services will cost or how it ...