OnePlus Nord
Android 11.0
Select help topic
1. Find "Caller ID and call waiting"
Press the phone icon.
Press the menu icon.
Press Settings.
Press Calling accounts.
Press More features below the required SIM.
Press Caller ID and call waiting.
2. Turn call waiting on or off
Press the indicator next to "Call waiting" to turn the function on or off.
3. Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.