Late last year AT&T announced that it lets iPhone users make VoIP calls over 3G. VoIP applications such as Skype for iPhone can call over WiFi as well as 3G networks, but they couldn’t do such a thing until AT&T lifted its restrictions. Not that it helped much. After AT&T announced that it opened its 3G network to Internet calling applications such as Skype, we still couldn’t make calls over 3G. That’s because Apple stepped in and decided to ban VoIP calls over 3G when you’re on an iPhone.

There are good news to report: Apple has removed the restriction. That’s right, Internet calling applications can now make VoIP calls over 3G networks. But if you’re a Skype fan, don’t get too excited. The company announced that it has something up its sleeve; an app they’ll release once Apple drops is 3G calling restriction. But that app has not been released just yet and with Skype for iPhone 1.3 you cannot make VoIP calls over 3G.

There is one app that can: iCall. This is the first iPhone app that can make VoIP calls over 3G, but it will certainly not be the last. They get the attention because they’re the first to provide the feature. Since iCall is in the spotlight, here is what the company’s CEO had to say about Apple dropping the 3G restriction.

iCall CEO, Arlo Gilbert comments: “I applaud Apple's decision to allow iCall to extend its functionality beyond Wi-Fi and onto the 3G networks. This heralds a new era for VoIP applications on mobile platforms, especially for iCall and our free calling model. I hope that now more developers will begin using our VoIP as a platform to integrate VoIP into their applications."

You can download the iCall app straight from the App Store here.