LG KG810 User Manual page 115

Settings
Handset lock
You can use a security code to avoid unauthorised use of the phone. Whenever you
switch on the phone, the phone will request security code if you set phone lock to
When switch on.
If you set phone lock to When SIM changed, your phone will request security code
only when you change your SIM card.
Call barring
The Call barring service prevents your phone from making or receiving certain
category of calls. This function requires the call barring password. You can view the
following submenus.
]
All outgoing calls
The barring service for all outgoing calls.
]
Outgoing international
The barring service for all outgoing international calls.
]
Outgoing international when roaming
The barring service for all international outgoing calls except home network.
]
All incoming
The barring service for all incoming calls.
114
(Menu 9.7.2)
(Menu 9.7.3)