Polycom SoundPoint IP 550 User Manual page 25

• There is an incoming call (ringing)
• There is an outgoing call (ringing back)
• Any menu shows on the display
In all other cases, the mode changes to Backlight Idle.
To modify the backlight intensity:
1. Press
2. Select Settings > Basic > Backlight Intensity.
3. Select Backlight On Intensity.
4. Use the or
Select soft key to modify the Backlight On Intensity.
The default level is high.
5. Select Backlight Idle Intensity.
6. Use the or
Select soft key to modify the Backlight On Intensity.
The default level is low.
Customizing Your SoundPoint IP 550 Phone
.
to select high, medium, low, or off and press the
to select high, medium, low, or off and press the
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