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Nokia 3100 and Nokia 3120 User Guide 29 Copyright © 2004 Nokia
Phone security
• ACCESS CODES
• Security code—This code, supplied with the phone, protects your phone against
unauthorized use. The preset code is 12345. See “Security” on page 62 for
more information.
• PIN code—This code, supplied with the SIM card, protects the card against
unauthorized use. Set on the PIN code request in the Security settings menu
(see “Security” on page 62 for more information), so that the code is requested
each time the phone is switched on. If you enter an incorrect PIN code three
times in succession, the SIM card is blocked. You must enter the PUK code to
unblock the SIM card and set a new PIN code.
• PIN2 code—This code is supplied with some SIM cards and is required to access
certain services, such as charging unit counters. If you enter an incorrect PIN2
code three times in succession, PIN2 code blocked appears in the display and
you will be asked for the PUK2 code.
You can change the security code, PIN code and PIN2 code in Access codes in
the Security settings menu. See “Security” on page 62 for more information.
Keep the new codes secret and in a safe place, separate from your phone.
• PUK and PUK2 codes—These codes may be supplied with the SIM card. For
more information, contact your service provider.
• Call restriction password (4 digits)—The restriction password is needed when
using the Call restrictions. See “Security” on page 62 for more information.
You can obtain the password from your service provider.
• CLOSED USER GROUPS
This network service specifies the group of people whom you can call and who can call
you. Default resets the phone to use a user group that the SIM card owner has agreed
upon with the service provider. When calls are limited to closed user groups, calls still
may be possible to the official emergency number programmed into your phone.
Turn on closed user groups
1 Select Menu > Settings > Security settings > Closed user group > On.
2 Enter the group number, then select OK.
Turn off closed user groups
Select Menu > Settings > Security settings > Closed user group > Off.