Just moved to Consumer Cellular, all functions are working well EXCEPT the WIFI Calling option in the Connections menu is MISSING.  I have spent 4 hours on the phone with Consumer Cellular and they are saying Wifi Calling is support and turned in their system

Is there a firmware upgrade that can be done to my phone to get WIFI calling to work, I need it at my house because I live in a low area and only one spot in my house has reception 

The phone has all the updates done, no non-authorized apps are running and the phone is unlocked

I have one warning message saying "Sim Card is not from Verizon"   other than that the phone is working fine.