Find "Call barring settings"
Press the menu icon.
Press Settings.
Press Call.
Press Call barring settings.
Select barring option
Press one of the following options:
All outgoing
All outgoing
Outgoing international
Outgoing international roa
All incoming
Incoming calls when roami
Select setting
Key in your barring password (default is 0000).
Press OK.
A request to change the setting is sent to the network.
The action is confirmed on the display.
Press OK.
A request to change the setting is sent to the network.
The action is confirmed on the display.
Exit
Press the Home key to return to standby mode.