162.1.2 Display BacklightThe display backlight automatically turns on when an incoming call or mes-sage arrives, or if a key is pressed.The backlight turns off when the handset is idle after a preset period of timedelay.You can disable the backlight to save power, refer to “Turning Backlight Off”The telephone icon will appear when the handset is off hookor a call is connected.The envelope icon will appear when you receive a message.The charging icon will appear when the handset is placed incharger.The fully charged icon will appear when the battery is fullycharged.The key lock icon indicates that the entire keypad is locked.The silent icon will appear when all sounds are disabled.The loadspeaker icon will appear when loadspeaker is turnedon.The mute icon will appear when mic mute is turned on. Micmute is a abbreviation of microphone mute.
