i updated my G5 to the official LOS. Although VoWifi and VoLTE are enabled in settings, none of them are working (They didn't work on the unofficial version either).
According to my network operator, these functions are activated.
Unter Phone Info (*#*#4636#*#* in dialer's app) it says "IMS Registration: Not Registered"
Is there anything I can do about this?
I have the exact same problem. Any help appreciated.