Backlight Intensity - Polycom SoundPoint IP 550 User Manual

User Guide SoundPoint IP 550

Backlight Intensity

2 - 4
5. Press
display.
Backlight intensity on the SoundPoint IP 550 phone has three modes:
• Backlight On
• Backlight Idle
• Dim
You can modify the Backlight On intensity and the Backlight Idle intensity
separately. You can select high, medium, low, and off levels for both.
Dim mode intensity is determined by the Backlight On intensity and the
Backlight Idle intensity together as follows:
Backlight On Intensity
off
low
medium
high
high
high
high
The Backlight On mode turns on for following events:
• Any key press
• Hookswitch release
• Incoming calls
• Ending a call, holding a call, resuming a call by the other party
• A voice or instant message received
• A USB device plugged in or unplugged
If you do not press any keys on the phone, after 20 seconds of the backlight
turning on, the backlight dims (or changes) to medium in the following cases:
• A call is in progress
• A call is on hold
or the Exit soft key repeatedly to return to the idle
Backlight Idle Intensity
off
dimmer than low
dimmer than medium
off
low
medium
high
Dim Intensity
off
low
medium
medium
medium
medium
high