Find "Call Barring"
Press Connect.
Press the Menu key.
Press Options.
Press Call Barring.
Cancel all call barrings
Press one of the following barring types to deactivate it:
All Calls below Block Incoming Calls
All Calls below Block Incoming Calls
Incoming If Roaming
All Calls below Block Outgoing Calls
Key in the barring password (default is 0000) and press Enter.
Repeat until all call barrings have been deactivated.
Repeat until all call barrings have been deactivated.
Exit
Press Disconnect to return to standby mode.