Apple’s iPhone SDK update didn’t just bring iPad support, the SDK is now permitting VoIP calls to be made over 3G networks. In the past, this option had only been available via a Wi-Fi connection. Per iCall, Apple has revised its SDK to allow VoIP calls over cellular networks. This is a major change from Apple’s previous agreement with AT&T which only allowed VoIP communications over a Wi-Fi connection.
Last October, AT&T announced that it would open up its 3G network to VoIP applications on the iPhone, the action apparently coming to fruition.
Previously, as part of a concession made to AT&T, Apple’s terms for software approval on the App Store prohibited VoIP-based applications like Skype from utilizing networks operated by wireless carriers.
In April, internet advocacy group Free Press asked the FCC to investigate both AT&T and Apple over claims that both companies were violating federal net-neutrality protection.
Stay tuned for additional details as they become available.