Find "Call barring settings"
Press All apps.
Press Settings.
Press Call.
Press Call barring settings.
Change barring password
The current settings will be displayed.
Press Change password.
Press Change password.
Key in your current barring password (default is 0000) and press OK.
Key in the new barring password and press OK.
Key in the new call barring password again and press OK.
A request to change your barring password is sent to the network.
A request to change your barring password is sent to the network.
Exit
Press the Home key to return to standby mode.
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