OPPO Find X5 Pro 5G
Android 12.0
Select help topic
1. Find "Mobile network"
Slide two fingers downwards starting from the top of the screen.
Press the settings icon.
Press Mobile network.
2. Turn VoLTE on or off
Press the required SIM.
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.