How to activate or deactivate your own caller identification
You can deactivate your own caller identification, your number will then not be displayed at the receiving end when you make a call. Your number is only hidden when you make voice calls not when you send messages.
Find " Additional settings"
Slide your finger down the display starting from the top edge of your mobile phone.
Press the settings icon.
Press Additional settings.
Activate or deactivate your own caller identification
The current settings are displayed.
Press Caller ID.
Press Hide number or Show number.
Return to the Home screen
Press the home icon to end the session and return to the Home screen.