Polycom IP 650 - Manual (Page 24)

User Guide SoundPoint IP 650
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4. Press the Ok or Cancel soft keys to accept or cancel changes.
5. Press or the Exit soft key repeatedly to return to the idle
display.
Backlight Intensity
Backlight intensity on the SoundPoint IP 650 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:
The Backlight On mode turns on for following events:
• Any key press
• Hookswitch release
Backlight On Intensity Backlight Idle Intensity Dim Intensity
off off off
low dimmer than low low
medium dimmer than medium medium
high off medium
high low medium
high medium medium
high high high