Nokia 6820 User Guide - Page 127

Security settings Note: When security features that restrict calls are in use (call barring, closed user group and fixed dialling), calls may be possible to certain emergency numbers in some networks (e.g. 112 or other official emergency numbers). Press Menu and select Settings, More settings and Security settings. Select • PIN code request to set the phone to ask for your PIN code every time the phone is switched on. Some SIM cards do not allow the PIN code request to be turned off. • Call barring service (network service) to restrict incoming calls to and outgoing calls from your phone. A barring password is required. • Fixed dialling to restrict your outgoing calls and text messages to selected phone numbers if this function is supported by your SIM card. The PIN2 code is required. When the fixed dialling is on, GPRS connections are not possible except while sending text messages over a GPRS connection. In this case, the recipient's phone number and the message centre number must be included in the fixed dialling list. • Closed user group. Closed user group is a network service that specifies the group of people whom you can call and who can call you. For more information, contact your network operator or service provider. • Security level. Select Phone and the phone will ask for the security code whenever a new SIM card is inserted into the phone. Copyright © 2004 Nokia. All rights reserved. 127