User Guide for SIP VP-T49G IP phone603. Select System from the pull-down list of Screensaver Type.4. Click Confirm to accept the change.Backlight has three options:Backlight Active Level: The intensity of the touch screen when the phone is active. Youcan change the intensity of the touch screen by dragging the backlight active levelslider.Backlight Inactive Level: The intensity of the touch screen when the phone is inactive.You can select a low intensity or turn off the backlight.Backlight Time: The delay time to change the intensity of the touch screen when thephone is inactive. You can select a desired time to change the intensity or turn on thebacklight permanently.To configure the backlight via phone user interface:1. Tap ->Basic->Display->Backlight.2. Drag the Backlight Active Level slider.3. Tap the Backlight Inactive Level field.4. Tap the desired value in the pop-up dialog box.5. Tap the Backlight Time field.
