LG Electronics C3300 Fixed dial number (FDN), Change codes

[86 C3300 User Guide ]
Fixed dial number (FDN)
(SIM dependent) (Menu-9-5-4)
Use this to restrict your outgoing calls to selected phone numbers,
if this function is supported by your SIM card. The PIN2 code is
required.
The following options are available:
]Activate: Use this to only call phone numbers saved in the
phonebook. You must enter your PIN2 code.
]Cancel: Allows you to call any number.
]Number list: Use this to view the numbers saved as fixed dial
numbers.
Change codes (Menu-9-5-5)
The Change codes feature lets you change your current password
to a new one. You must enter the current password before you can
specify a new one.
Use this to change the access codes: Security code, PIN2 code
Settings
nNote To use Call barring service, you must input the network
password. When calls are barred, calls may be possible to
certain emergency numbers on some networks.
nNote Not all SIM cards have a PIN2. If your SIM card does not, this
menu option is not displayed.
nNote PIN: Personal Identification Number