Yealink SIP-T4X, Administration Manual

Page: 56 / 466

Configuring Basic Features
41
To change the wallpaper via phone user interface:
1. Press Menu->Basic->Display->Wallpaper.
2. Press or , or the Switch soft key to select the desired wallpaper.
3. Press the Save soft key to accept the change.
Backlight determines the brightness of the LCD screen display, allowing users to read
easily in dark environments. Backlight time specifies the delay time to turn off or dusky
the backlight when the IP phone is inactive. Backlight time is applicable to SIP-T4X IP
phones and EXP40 connected to SIP-T46G IP phones.
You can configure the backlight time as one of the following types:

Always On: Backlight is turned on permanently.

15, 30, 60, 120, 300, 600 or 1800: Backlight is turned off or turned dusky when the IP
phone is inactive after a preset period of time. It is automatically turned on if the
status of the IP phone changes or any key is pressed.
Backlight Active Level is used to adjust the backlight intensity of the LCD screen, and
Backlight Inactive Level is used to turn off or dusky the backlight after a period of
inactivity. Backlight Active Level is only applicable to SIP-T46G IP phones and the
connected EXP40. Backlight Inactive Level is only applicable to SIP-T46G IP phones.
Procedure
Backlight can be configured using the configuration files or locally.
Configuration File <y0000000000xx>.cfg
Configure the backlight of the
LCD screen.
For more information, refer to
Backlight on page 262 .
Local
Web User Interface
Configure the backlight of the
LCD screen.
Navigate to:
http://<phoneIPAddress>/servlet
?p=settings-preference&q=load
Phone User Interface
Configure the backlight of the
LCD screen.
To configure the backlight via web user interface:
1. Click on Settings->Preference.
2. Select the desired value from the pull-down list of Backlight Inactive Level.
3. Select the desired value from the pull-down list of Backlight Active Level.