Notification lightsSelect Menu > Settings and Phone > Notification lights.To turn the standby breathing light on or off, select Standbybr. light.When the standby breathing light is turned on, the menu keylights up periodically.To turn the notification light on or off, select Notificationlight.When the notification light is turned on, the menu key lightsup for a period you define to notify of missed events, such asmissed calls or unread messages.Application managerAbout Application managerSelect Menu > Settings and Application mgr..With Application manager, you can see the softwarepackages installed in your device. You can view details ofinstalled applications, remove applications, and defineinstallation settings.You can install the following types of applications andsoftware:• JME applications based on Java™ technology with .jador .jar file extensions• Other applications and software suitable for the Symbianoperating system with .sis or .sisx file extensions• Widgets with the .wgz file extensionOnly install software that is compatible with your device.Install applicationsYou can transfer installation files to your device from acompatible computer, download them during browsing, orreceive them in a multimedia message, as an e-mailattachment, or using other connectivity methods, such asBluetooth connectivity.You can use Nokia Application Installer in Nokia Ovi Suite toinstall an application to your device.Icons in Application manager indicate the following:SIS or SISX applicationJava applicationwidgetsapplication installed in the memory cardapplication installed in the mass memoryImportant: Only install and use applications and othersoftware from trusted sources, such as applications that areSymbian Signed or have passed the Java Verified™ testing.Before installation, note the following:Settings 129