Display Backlight - Polycom 5020 User Manual

The telephone icon will appear when the handset is off hook
or a call is connected.
The envelope icon will appear when you receive a message.
The charging icon will appear when the handset is placed in
charger.
The fully charged icon will appear when the battery is fully
charged.
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 turned
on.
The mute icon will appear when mic mute is turned on. Mic
mute is a abbreviation of microphone mute.

2.1.2 Display Backlight

The 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 time
delay.
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