Find "Call barring"
Press the Menu key.
Press Settings.
Press Calling.
Press Call barring.
Cancel all call barrings
Press the menu icon.
Press Deactivate all barrings.
Key in your barring password (default is 0000) and press OK.
A request to cancel all call barrings is sent to the network.
A request to cancel all call barrings is sent to the network.
Exit
Press the Menu key to return to standby mode.