Samsung B2710
Turn your own caller identification on or off
You can turn off your own caller identification, your number will then not be shown at the receiving end when you make a call. Your number is only hidden when you make voice calls not when you send messages.
1. Find "Show my number"
Press Menu.
Scroll to Settings and press the Navigation key.
Scroll to Call and press the Navigation key.
Scroll to All calls and press the Navigation key.
Scroll to Show my number and press the Navigation key.
2. Turn your own caller identification on or off
Highlight Send or Hide and press the Navigation key.
3. Return to the home screen
Press Disconnect to return to the home screen.