05-04-2014 8:29 AM
05-04-2014 9:04 AM
Double check your settings by turning the following off/on Settings>Cellular>Facetime (scroll down to this in the list of apps) - Make sure it is on and did not get switched off!
05-04-2014 9:18 PM - edited 05-04-2014 9:18 PM
That's definatly not it. It works fine over wifi
The settings I directed you to allow facetime to work over cellular/LTE. Wifi would not be impacted by my suggestions.
05-04-2014 9:23 PM
05-04-2014 9:29 PM
Good luck DUDE! You asked a question and I provided you with a reasonable item to check that may resolve your issue. You may want to also try reseting your network settings to see if that clears things up.
Settings>General>Reset>Reset Network Settings You will need to setup any wifi networks again but everthing else remains untouched.
If that does not do it call ATT and have them check your setup on the network.
05-05-2014 7:19 AM - edited 05-05-2014 7:19 AM
Which model iPhone are you using and which version of iOS are you on?
There is also this article from Apple's support site: http://support.apple.com/kb/TS3367?viewlocale=en_U
05-05-2014 8:21 AM
5s and the latest version of the os.
Your next best step is to call ATT and have them verify the setup of your account for data. After that, you may need to make an appointment to see a Genius at the Apple store and have them check out your iPhone's hardware. www.apple.com/retail
There was an issue with some older iPhones and ones not upgraded to the lastest version of the iOS available for a particular model. The security certificate on some of the older iPhones expired and only work in iOS 7 if your iPhone supports it or the latest version of iOS 6 if your iPhone cannot be upgraded to iOS7.