This is great.
I think the next evolution in FaceTime audio should be as follows:
- Caller initiates phone call
- Caller's phone checks to see if it's on Wi-Fi (or if a setting has been checked in Settings to allow FaceTime Audio over cellular)
- Caller's phone checks if recipient's phone is on Wi-Fi (or if they also have a setting that has been checked in Settings to allow FaceTime Audio over cellular)
- If both checks are positive, FaceTime Audio call is initiated. If either of the checks fail, the call defaults to via carrier.
This would provide a seamless experience, and get consumers to truly appreciate the HD quality FaceTime audio requires, whilst simultaneously raising a middle finger to cellular carriers.