LG C3300 - Manual (Page 85)

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C3300 User Guide
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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
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Note 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.
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Note Not all SIM cards have a PIN2. If your SIM card does not, this
menu option is not displayed.
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Note PIN: Personal Identification Number