10Your device supports internet connections and other methods of connectivity. Likecomputers, your device may be exposed to viruses, malicious messages and applications,and other harmful content. Exercise caution and open messages, accept connectivityrequests, download content, and accept installations only from trustworthy sources.To increase the security of your device, consider installing antivirus software with aregular update service and using a firewall application.Warning: To use any features in this device, other than the alarm clock, thedevice must be switched on. Do not switch the device on when wireless deviceuse may cause interference or danger.■ Network servicesTo use the phone you must have service from a wireless service provider. Many of thefeatures require special network features. These features are not available on allnetworks; other networks may require that you make specific arrangements with yourservice provider before you can use the network services. Your service provider cangive you instructions and explain what charges will apply. Some networks may havelimitations that affect how you can use network services. For instance, some networksmay not support all language-dependent characters and services.Your service provider may have requested that certain features be disabled or notactivated in your device. If so, these features will not appear on your device menu.Your device may also have a special configuration such as changes in menu names,menu order, and icons. Contact your service provider for more information.This device supports WAP 2.0 protocols (HTTP and SSL) that run on TCP/IP protocols.Some features of this device, such as web browsing, e-mail, push to talk, instantmessaging, and multimedia messaging, require network support for these technologies.