How To Adjust The Backlight - Polycom VVX500 User Manual

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How to adjust the backlight ?

3 types of Intensity :
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Backlight on : brightness of the screen when there is phone activity
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Backlight idle : brightness of the screen when there is no phone activity
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Backlight maximum : brightness scale that applies to Backlight On & Backlight Idle intensities
Change intensity
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Home key > Settings > Basic > Backlight Intensity.
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From the Backlight Intensity screen, tap Backlight On Intensity.
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From the Backlight On Intensity screen, select type to define (default = High)
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From the Backlight Idle Intensity screen, select type to define (default = Low)
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From the Backlight Intensity screen, tap Maximum Intensity scale.
Change timeout
= number of seconds the phone is inactive before the backlight dims to its Backlight Idle intensity.
Timeout period begins after last key press or last phone event, such as an incoming call.)
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Home key > Settings > Basic > Backlight Timeout
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Select number of seconds (default = 40seconds)
Phone preferences (4)