Do you happen to have a Samsung S8 or A8?
[Hi, sorry for the abandoning my thread! Laptop died and I had bigger fish to fry (like data backups) ]
I have an S7. However, I have similar issues with my daughters trusty LG G3.
Yes, will look at WiFi calling when it is supported by more units. While I do enjoy the nostalgic feeling of seeing the 2G/Edge icon on my phone, it would be nice to have a reasonable data coverage (at times of VF cable outtages).