Nokia 5300 User Guide - Page 56

Settings Call barring service - to restrict incoming calls to and outgoing calls from your phone (network service). A barring password is required. Fixed dialling - to restrict your outgoing calls to selected phone numbers if this function is supported by your SIM card. When the fixed dialing 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 center number must be included in the fixed dialing list. Closed user group - to specify a group of people whom you can call and who can call you (network service) Security level > Phone - to set the phone to ask for the security code whenever a new SIM card is inserted into the phone. If you select Memory, the phone asks for the security code when the SIM card memory is selected, and you want to change the memory in use. Access codes - to change the security code, PIN code, UPIN code, PIN2 code, or barring password Code in use - to select whether the PIN code or UPIN code should be active Authority certificates or User certificates - to view the list of the authority or user certificates downloaded into your phone. See "Certificates," p. 83. Security module sett. - to view Secur. module details, activate Module PIN request, or change the module PIN and signing PIN. See also "Access codes," p. 9. ■ Phone software updates Your service provider may send phone software updates over the air directly to your device (network service). This option may not be available, depending on your phone. Warning: If you install a software update, you cannot use the device, even to make emergency calls, until the update is completed and the device is restarted. Be sure to backup data before accepting a software update. 56