A FaceTime call use to only work over Wi-Fi, but Apple just unveiled at the Worldwide Developers Conference that users can now complete a FaceTime call over cellular networks in iOS 6. This is a highly-requested feature, because users are not always connected to a Wi-Fi signal. Another FaceTime enhancement in iOS 6 includes the unification of a user’s phone number with an Apple ID, which allows calls to be answered on an iPad and Mac. Apple said it is doing the same with iMessage too.
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