Pro1X: Internal microphone/speaker issues - low gain, sensitive feedback avoidance? in Support Posted October 24, 2022 15 minutes ago, Feld said: I was wondering from where you saw I'm located in Germany It was your naming the App "Schlichtes Diktiergerät" (aka "Simple Voice Recorder"). 😄 I do not know about (the future of) 2G/GSM availability in Spain. Disabling VoLTE is a safe solution for Germany and Austria for now, but not for the entire world: If you are in a network which has disabled those old protocols, VoLTE is now mandatory for phone calls. But just trying will not break anything.