The FaceTime video calling service which Apple introduced with the release of the iPhone 4 has proved to be a somewhat hit and miss. It goes without saying that a large number of users find the ability to make free of charge video calls over a Wi-Fi connection a huge benefit. But, a lot of users have also found FaceTime to be a little confusing, and very limiting due to the fact that it actually requires both devices to be connected to Wi-Fi, unless, of course certain jailbreak tweaks are installed to bypass that requirement.

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