AT&T had previously allowed VoIP applications on other wireless devices, and has now informed both Apple and the FCC of its revised decision. Although AT&T have made this u-turn in conjunction with the investigation by the FCC, it is likely that it will be some time before VoIP-over-3G applications start to appear and start to work on the iPhone as application developers will need to update their code to allow for 3G connectivity, and Apple will then need to approve the updates which typically takes two weeks. For world-wide centric applications like Skype and Google Voice though this shouldn’t really be a problem as they already support this in other world markets.

AT&T commented “iPhone is an innovative device that dramatically changed the game in wireless when it was introduced just two years ago,” said Ralph de la Vega, president and CEO, AT&T Mobility & Consumer Markets. “Today’s decision was made after evaluating our customers’ expectations and use of the device compared to dozens of others we offer.”

Apple commented “We are very happy that AT&T is now supporting VOIP applications,” said Apple spokeswoman Natalie Kerris. “We will be amending our developer agreements to get VOIP apps on the App Store and in customers’ hands as soon as possible.”

Skype commented “All of us at Skype applaud today’s announcement by AT&T that it’ll open up its 3G network to Internet calling applications such as Skype. It’s the right step for AT&T, Apple, millions of mobile Skype users and the Internet itself.”