Find "Change barr. passw."
Press Menu.
Press Settings.
Press Security.
Press Access codes.
Press Change barr. passw..
Change barring password
Key in your current barring password (default is 0000) and press OK.
Key in a new call barring password and press OK.
Key in the new call barring password again and press OK.
A request to change the setting is sent to the network.
A request to change the setting is sent to the network.
Exit
Press Disconnect to return to standby mode.