Nokia 2680 slide User Guide - Page 26
SIM services - sim card
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SIM services module which may be available on your SIM card. For more information, contact your service provider. To view or change the security module settings, or to view a list of authority or user certificates downloaded to your phone, select Menu > Settings > Security > Security module settings, Authority certificates, or User certificates. Important: Even if the use of certificates makes the risks involved in remote connections and software installation considerably smaller, they must be used correctly in order to benefit from increased security. The existence of a certificate does not offer any protection by itself; the certificate manager must contain correct, authentic, or trusted certificates for increased security to be available. Certificates have a restricted lifetime. If "Expired certificate" or "Certificate not valid yet" is shown, even if the certificate should be valid, check that the current date and time in your device are correct. 16. SIM services Your SIM card may provide additional services. You can access this menu only if it is supported by your SIM card. The name and contents of the menu depend on the available services. 26 © 2008 Nokia. All rights reserved.