Nokia 6681 manual Glossary of PIN and lock codes

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message centre number and the recipient’s phone number must be included on the fixed dialling list.

Options in the Fixed dialling view are Open, Call, Activ. fixed dialling/Deact. fixed dialling, New contact, Edit, Delete, Add to Contacts, Add from Contacts, Find, Mark/Unmark, Help, and Exit.

Note: When security features that restrict calls are in use (such as Call barring, Closed user group, and Fixed dialling) calls still may be possible to the official emergency numbers programmed into your phone.

Closed user group (network service)—You can specify a group of people to whom you can call and who can call you.

Confirm SIM services (network service)—You can set the phone to display confirmation messages when you are using a SIM card service.

Glossary of PIN and lock codes

Personal identification number (PIN) code—This code protects your SIM card against unauthorised use. The PIN code (4 to 8 digits) is usually supplied with the SIM card. After three consecutive incorrect PIN code entries, the PIN code is blocked, and you need to unblock it before you can use the SIM card again. See the information about the PUK code in this section.

UPIN code—This code may be supplied with the USIM card. The USIM card is an enhanced version of the SIM card and is supported by UMTS mobile phones. The UPIN code protects the USIM card against unauthorised use.

PIN2 code—This code (4 to 8 digits) is supplied with some SIM cards, and is required to access some functions in your phone.

Lock code—This code (5 digits) can be used to lock the phone to avoid unauthorised use. The factory setting for the lock code is 12345. To avoid unauthorised use of your phone, change the lock code. Keep the new code secret and in a safe place separate from your phone.

Personal unblocking key (PUK) code and PUK2 code—These codes (8 digits) are required to change a blocked PIN code or PIN2 code, respectively. If the codes are not supplied with the SIM card, contact the operator whose SIM card is in your phone.

UPUK code—This code (8 digits) is required to change a blocked UPIN code. If the code is not supplied with the USIM card, contact the operator whose USIM card is in your phone.

Wallet code—This code is required to use the wallet services. See ‘Wallet’, p. 69.

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