VoWiFi/VoLTE not working on Fairphone 4 with /e/ (on Vodafone Germany and other networks)
- /e/ version: 0.23
- Device model(s): FP4
- Device rooted: no
Summary
Phonecalls via LTE and WiFi not possible
The problem
FP4 cannot make calls via ims-service. VoWiFi/VoLTE not working
Activate VoWiFi in Network Settings and make a phonecall. Won't use WiFi For VoLTE: No Internetconnection while on phonecall.
a call connection over wifi should be established surfing while calling should be possible
Relevant logs (adb logcat)
Relevant screenshots
Solutions
Workaround
none
Possible fixes