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 ...

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 ...

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 ...

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 ...

Vonage has sued AT&T over the long-distance company's new Internet-based phone service, saying AT&T's "CallVantage" name was too close to Vonage's brand name. The move suggests the tough competition ...

AT&T reversed course today, announcing that it would “take the steps necessary” so iPhone owners could run VoIP applications, presumably including Google Voice and Skype. Apple, meanwhile, said it ...

AT&T Corp. and Vonage Holdings Corp. have announced new voice over Internet Protocol (VOIP) products, with AT&T rolling out residential VOIP service to parts of Texas and New Jersey and Vonage ...

AT&T Corp. on Tuesday said it is offering voice over IP (VoIP) retail services for business, allowing the combination of voice, fax and data traffic on a single integrated IP connection managed by ...

The U.S. Federal Communications Commission has rejected a petition from AT&T Corp. that would have allowed the company to avoid paying its telecommunications competitors access charges on telephone ...