CNet News: Video VoIP calls over iPhone 3G? You betcha
“Apple may have focused all its laser-beam attention on the iPad at Wednesday’s press event, but that wasn’t the computing giant’s only announcement. Effective immediately, Apple has given up blocking voice-over-IP (VoIP) calls over 3G data networks on the iPhone, and has changed the SDK to reflect the allowance. Of course, your carrier has to also comply for VoIP calls to work over 3G in addition to Wi-Fi. Luckily for us, AT&T in the U.S. is already on board.
The iCall app was one of the first to announce the 3G compatibility news to its VoIP users. Fring, a voice and chat app that supports Skype, SIP, and video calls, soon followed. We wanted to see just how reliable Fring’s VoIP video calling was in the absence of Wi-Fi, so we turned off the wireless and made a few calls.”