1 Find "Call barring settings"
Slide your finger down the display starting from the top edge of your phone.
Press the settings icon.
Press the settings icon.
Press Call.
Press Call barring settings.
2 Select barring option
Press one of the following options:
All outgoing
All outgoing
Outgoing international
Outgoing international roaming
All incoming
Incoming calls when roaming
3 Turn call barring on or off
Key in your barring password (default is 0000) and press OK to turn the function on or off.
4 Return to the home screen
Press the home icon to return to the home screen.