Polycom SoundPoint IP 550 User Manual page 27

To modify the backlight intensity:
Press
1.
Select Settings > Basic > Backlight Intensity.
2.
Select Backlight On Intensity.
3.
Use or
4.
press the Select soft key.
The default level is medium.
Select Backlight Idle Intensity.
5.
6. Use or
press the Select soft key.
The default level is low.
.
or keypad to select high, medium, low, or off, and then
or keypad to select high, medium, low, or off, and then
Customizing Your Phone
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