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.
