Galaxy S7 unable to receive calls!!

[Morketh]

Samsung Galaxy S7 on Tmobile SM-G930T android version 6.0.1
I can make outgoing calls but I cannot receive any calls, they go straight to voicemail
If I restart my phone I can receive calls for a while but then after being locked for a bit the calls next come through. I wake the phone up and even then the call still wont come through until i restart it again.

Anyone know why this happens, it sure hasnt always happened?

 

[Morketh]

No one has any tips on this?

 

[jshaw42]

I had the same problem. Yesterday, I went to the Verizon store and they switched the SIM card. I haven't tested it yet.

 

[Morketh]

I turned wifi calling on and turned off location and it works every time now.
Not sure why. I hate wifi calling and id like to keep my location on but whatever, i need to receive calls.