Nokia 9290 Nokia 9290 Communicator User Guide - Page 324

Glossary 306 PUK (PIN Unblocking Key) code The PUK is an 8-digit code supplied with the SIM card. The code is required when you want to change a disabled PIN code. If you enter an incorrect PUK code ten times in succession, the SIM card is rejected and you cannot make or receive any calls, except emergency calls. When the SIM is rejected, you will need a new SIM card. You cannot change the PUK code. If you lose the code, contact your system service provider. PUK2 Code The PUK2 code is supplied with some SIM cards. The code is required when you want to change a disabled PIN2 code. If you enter an incorrect PUK2 code ten times in succession, you will not be able to access the functions which require the PIN2 code. To use these functions again, you will need to obtain a new SIM card from your system service provider.You cannot change the PUK2 code. Restriction password The restriction password is a 4-digit code needed to change fax and voice call restrictions, see 'Restrict voice calls' on page 106. The password is not located in your communicator or SIM card, but in the network. You obtain the password from your system service provider when you subscribe to the call restriction service. Roaming agreement An agreement between two or more system service providers to enable the users of one service provider to use the services of other service providers.