FAIRPHONE Fairphone 4
Android 11.0
1 Find "Voice"
Press the phone icon.
Press the menu icon.
Press Settings.
Press Calling accounts.
Press the name of the SIM.
Press GSM call settings.
Press Call forwarding.
Press Voice.
2 Cancel all diverts
Press the required divert type.
Press TURN OFF.
3 Return to the home screen
Press the Home key to return to the home screen.