Anyone else running iOS 9.1 that was part of AT&T WiFi Calling Beta and once iOS 9 was officially released get a text message stating you would be able to keep it but then suddenly get disabled on your phone and not let you re-enable it?
Thats what happened to me on Sept 16th I got a text message about it and told would be able to keep the WiFi Calling Feature. And it kept working until Sunday the 27th and then stopped working and when try to re-enable tells you its not available in my area. I called AT&T and they tell me I gotta contact Apple.