I have restarted the phone, turned airplane mode off and on, reset network settings, clean installed the ios, replaced the chip, everything.
I can receive texts, use the internet, get mail and do everything except make a voice call. It is maddening.
Even more strange, I can call 911. The instant that I try to make a call, it fails. Strange....
Iphone 6s plus IOS 10.2.1
Any ideas would be much appreciated.
Thanks.
-Sean