OPPO A38
Turn call barring on or off
You can block certain types of calls such as incoming calls when you're abroad.
Press the call icon.
Press the menu icon.
Press Settings.
Press Calling accounts.
Press Operator-related settings.
Press Call barring.
Press the required barring type.
Key in your barring password. The default barring password is 0000.
Press the Home key to return to the home screen.
1. 1. Find "Call barring"
2. 2. Turn call barring on or off
3. 3. Return to the home screen