Samsung SGH-D415MSATMB - Manual (Page 126)

Phone Settings
123
locked the contents, you must enter the phone password to
access the associated menus.
When the phone asks for the phone password, enter the
password and press the OK soft key.
Note: The password is preset to “00000000” at the factory. To
change this password, see above.
FDN Mode
FDN (Fixed Dial Number) mode, if supported by your SIM
card, allows you to restrict your outgoing calls to a limited set
of phone numbers.
The following options are available:
Disable: you can call any number.
Enable: you can only call phone numbers stored in Phone
Book. You must enter your PIN2.
Note: Not all SIM cards have a PIN2. If your SIM card does not, this
menu does not display.
To Press the
select an item to lock Up or Down key. To lock all of your
contents, select All.
place a check mark Mark soft key.
remove a check mark Unmark soft key.
lock the marked items OK soft key.