Backlight - Yealink SIP-T48S User Manual

User Guide for the SIP-T48S IP Phone
The default value is 10, you can set to 1-30.
Click Confirm to accept the change.
5.

Backlight

Backlight has three options:
Active Level: The intensity of the touch screen when the phone is active. You can change the
intensity of the touch screen. Digits (1-10) represent different intensities. 10 is the highest
intensity.
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 the phone is
inactive. You can select a desired time to change the intensity or turn on the backlight
permanently.
Always On: Backlight is on permanently.

15s, 30s, 1min, 2min, 5min, 10min or 30min: Backlight is changed when the phone is

inactive after the designated time (in seconds).
You can also change the intensity of the LCD screen of EXP40 connected to the SIP-T48S IP
phone.
To configure the backlight via phone user interface:
Tap ->Basic->Display->Backlight.
1.
Tap the gray box of the Active Level field, and then select the desired level from the
2.
pull-down list.
Tap the gray box of the Inactive Level field, and then select the desired value from the
3.
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