Yealink T4 Series IP Phones User Guide44Setting the Screen Saver TypeFor the SIP-T42S/T42G/T41S/T41P/T40P/T40G IP phone, you cannot set the screen saver type. The system administratorcan set custom information displayed when screen saver starts.For SIP-T48S/T48G/T46S/T46G IP phone, you can choose one of the following screen saver types:l Systeml Customl Server XML (shows custom information on the screensaver)Before You BeginIf you want to set a custom picture as the screen saver, make sure that the custom picture has uploaded by your systemadministrator.If you want to show custom information on the screen saver, make sure that the custom information has set by yoursystem administrator.Procedure1. Navigate to Menu->Basic->Display->Screensaver.2. Select the desired screen saver type from the Screensaver Type field.l If you select System.The IP phone will automatically set the built-in picture as the screen saver.l If you select Custom.The IP phone will automatically set the custom pictures as the screen saver, and display these pictures altern-ately.l If you select Server XML.The IP phone will automatically display the custom information (for example, notifications or company logo) onthe screen saver.3. Press Save.Changing the Screen Backlight Brightness and TimeYou can change the backlight brightness of the LCD screen during phone activity and inactivity. The backlight bright-ness automatically changes when the phone is idle for a specified time.You can change the screen backlight brightness and time in the following settings:Active Level: The brightness level of the LCD screen when the phone is active. Digits (1-10) represent different bright-ness levels. 10 is the brightest level. It is only available for the SIP-T48S/T48G/T46S/T46G IP phone.Inactive Level: The brightness of the LCD screen when the phone is inactive. You can select a low brightness or turnoff the backlight. It is only available for the SIP-T48S/T48G/T46S/T46G IP phone.Backlight Time: The delay time to change the brightness of the LCD screen when the phone is inactive. Backlight timeincludes the following settings:l Always On: Backlight is on permanently.l Always Off: Backlight is off permanently. It is not available for the SIP-T48S/T48G/T46S/T46G IP phone.l 15s, 30s, 1min, 2min, 5min, 10min or 30min: Backlight is changed when the phone is inactive after the designatedtime (in seconds).
