Xiaomi Redmi Note 7
Android 10.0
Select help topic
1. Find "Call waiting"
Press the phone icon.
Press the settings icon.
Press Call waiting.
2. Turn call waiting on or off
Press the indicator next to "Call waiting" to turn the function on or off.
If you turn on the function, press Turn on.
3. Return to the home screen
Press the Home key to return to the home screen.