Samsung Galaxy S21 5G
Android 11.0
Select help topic
1. Find "Show your caller ID"
Press the phone icon.
Press the menu icon.
Press Settings.
Press Supplementary services.
Press Show your caller ID below the required SIM.
2. Turn your own caller identification on or off
Press Always to turn on caller identification.
Press Never to turn off caller identification.
3. Return to the home screen
Press the Home key to return to the home screen.