This has been a persistent issue that I contacted CS several times about. I have been trying to get WiFi Calling working, but I keep on getting an REG 99 error. With the help of a dialer code, I can see that it says the IMS Registration Status is not registered which I have heard is related to WiFi Calling. A new sim card was sent to me and that didn't resolve the issue and several signals we're pushed to the device. Also, the E911 address was updated. WiFi Calling is enabled under my ting device settings. I am on an LG G6 US997. Any help with this issue would be greatly appreciated.
REG 99 Error, WiFi Calling