111Copyright © 2006 Nokia. All rights reserved.To set whether you want to receive service messages, select Service messages > On or Off.To set the phone to receive service messages only from content authors approved by the service provider, selectMessage filter > On. To view the list of the approved content authors, select Trusted channels.To set the phone to automatically activate the browser from the standby mode when the phone has received aservice message, select Automatic connection > On. If you select Off, the phone activates the browser onlyafter you select Retrieve when the phone has received a service message.■ Cache memoryA cache is a memory location that is used to store data temporarily. If you have tried to access or have accessed confidentialinformation requiring passwords, empty the cache after each use. The information or services you have accessed is stored inthe cache.To empty the cache while browsing, select Options > Other options > Clear the cache; in the standby mode,select Menu > Web > Clear the cache.■ Browser securitySecurity features may be required for some services, such as online banking or shopping. For such connectionsyou need security certificates and possibly a security module, which may be available on your SIM card. Formore information, contact your service provider.Security moduleThe security module improves security services for applications requiring a browser connection, and allows youto use a digital signature. The security module may contain certificates as well as private and public keys. Thecertificates are saved in the security module by the service provider.To view or change the security module settings, select Menu > Settings > Security > Security module settings.