Samsung Galaxy S20 5G
Android 10.0
1. Find "Mobile networks"
Slide two fingers downwards starting from the top of the screen.
Press the settings icon.
Press Connections.
Press Mobile networks.
2. Turn VoLTE on or off
Press the indicator next to "VoLTE calls" to turn the function on or off.
3. Return to the home screen
Press the Home key to return to the home screen.