You can already FaceTime audio over 3G/4G/LTE, so... what's the difference on a call?Samsung galaxy S III and up smartphones will also benefit. That's quite a few phones that will benefit right there.
Or, AT&T can NOT do it, and continue to push people to use faceTime audio on wifi.
I doubt it. Many aren't actually making that many calls on smartphones anymore--especially younger people. I don't think they'd get away with charging for a feature that isn't used that much.Wonder how much ATT will charge for HD voice? If they charge anything I will just use FT Audio for free which sounds great.