Casanunda

Hmm, Wifi Call switch is enabled in the INFO menu. Thanks for the hint, though.

SIM was just taken over from old phone. online contract details say "WLAN Call: enabled". Are there any settings on Pro1 that could help? VoLTE is working fine, btw.

Deutsche Telekom (T-Mobile) is working fine for me, including LTE (4G). Only thing I that's not working is voice over Wifi (called "WLAN Call" on Telekom network). That would actually be very helpful for me (and was working great on my Samsung Galaxy S9) since in my office I have good Wifi connection, but mobile connection is very poor due to metal roof on the building.