Last week I told you that FaceTime has a little problem with some internet connections and when it does not have enough bandwidth to support a video call, the image disappears, but the audio connection remains. Practically, the system is not new, but the big news is that it will also work through EDGE/3G as soon as iOS 6 is released to the public. If you don't have a strong enough connection to make a video call or if you don't want to consume a lot of internet traffic for a video connection, you can use FaceTime to make voice-only calls.
If in the case of a weak connection FaceTime automatically disables the video stream, how can you force FaceTime to do the same when you have a good connection? Well, simply press the Home button during a Video call via FaceTime, the Phone application will be closed, the video feed will be stopped, but the audio feed will still work and you will be able to chat with your interlocutor without seeing you . This is a workaround for those who don't want to use a lot of internet traffic for a video call. Of course, there are applications in the App Store that allow you to make VoIP calls, but who needs them when you can do the same thing directly from iOS on any compatible iDevice?
In iOS 6, FaceTime will work over a cellular data connection only on iPhone 4S and iPad 3.
