Geez, I'm sorry. Just as an "aside", I have read posts claiming that WiFi calling is NOT enabled on "Open Market" phones. Here's a sample (it mentions a different brand, but the sentiment is the same) https://community.verizonwireless.com/message/1596579#1596579I'm hoping to follow those steps on the next Sony update to see if I can get it working.
Someplace on the Verizon forum I found a list of all the Open Market phones that were acceptable under the "Bring Your Own Phone" program. The Sony Xperia XZ2 Compact was the ONLY Sony on the list. That post had the same list of "things that don't work."
It would be great to have WiFi calling on the Sony.