1 Find "Call barring"
Press the Navigation key.
Select Settings.
Select Call settings.
Select SIM call settings.
Select Call barring.
2 Turn on call barring
Select the required barring category.
Select the required barring type.
Select Activate.
Key in your barring password and press the Navigation key. The default barring password is 0000.
3 Turn off call barring
Select Cancel all.
Key in your barring password and press the Navigation key. The default barring password is 0000.
4 Return to the home screen
Press Disconnect repeatedly to return to the home screen.