Backlight Intensity has three components:

  • Backlight On.
  • Backlight Idle.
  • Maximum Intensity.

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You can modify the Backlight On intensity and the Backlight Idle intensity separately. You can select high, medium, low, and off levels for both. When you modify the Maximum Intensity, you are modifying the entire backlight intensity scale.

For example, if you decrease the Maximum Intensity, the low, medium, and high values for both Backlight On intensity and the Backlight Idle intensity decrease.

The Backlight On intensity applies for the 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.

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.
  • There is an incoming call (ringing).
  • There is an outgoing call (ringing back).
  • Any menu shows on the display.

In all other cases, the Backlight Idle intensity applies.

To modify the backlight intensity, press Menu. Select Settings, then Basic, Backlight Intensity.

Polycom SoundPoint 335 - Backlight Intensity 1

Select Backlight On Intensity.

Polycom SoundPoint 335 - Backlight Intensity 2

Use Up and Down to select high, medium, low, or off, and then press the Select soft key. The default level is High. Select Backlight Idle Intensity.

Polycom SoundPoint 335 - Backlight Intensity 3

Use Up and Down to select high, medium, low, or off. Press the Select soft key. The default level is low. Select Maximum Intensity.

Polycom SoundPoint 335 - Backlight Intensity 4

Press the Up or Down soft keys to increase or decrease the backlight intensity. Press the Ok or Cancel soft keys to accept or cancel changes. Press Menu to return to the idle display.

Polycom SoundPoint 335 - Backlight Intensity 5