06-09-2018 4:52 AM
What phone are you using? And is it an ATT branded phone?
- edited 06-09-2018 7:42 AM
I ask 2 questions...
Is this an ATT branded phone?
if yes, have you created an access ID?
If NO, you cannot use number sync, it only works with ATT phones. It requires HD voice, which only ATT androids or iPhones have, as well as other AT&T programming.
06-09-2018 9:26 AM
Which is why I asked.. you need a VoLTE, enhanced calling feature capable phone. Which means it has to be an ATT branded android.