Yealink SIP-T48G Administrator's Manual page 131

Phone User Interface
Details of Configuration Parameters:
Parameters
phone_setting.active_backlight_level
Description:
Configures the intensity of the LCD screen when the phone is active.
10 is the highest intensity.
For T48G/T46G IP phones, it configures the LCD's intensity of the IP phone and the
connected EXP40.
For T29G/T27P IP phones, it configures the LCD's intensity of the IP phone and the
connected EXP39/EXP20.
Note: It is applicable to SIP-T48G/T46G IP phones and the connected EXP40,
SIP-T29G/T27P IP phones and the connected EXP39/EXP20.
Web User Interface:
Settings->Preference->Backlight Active Level
Phone User Interface:
Menu->Basic->Display->Backlight->Backlight Active Level
phone_setting.inactive_backlight_level
Description:
Configures the intensity of the LCD screen when the phone is inactive.
0-Off
1-Low
Note: It is only applicable to SIP-T48G/T46G/T29G IP phones.
Web User Interface:
Settings->Preference->Backlight Inactive Level
Phone User Interface:
Menu->Basic->Display->Backlight->Backlight Inactive Level
phone_setting.backlight_time
Configuring Basic Features
Navigate to:
http://<phoneIPAddress>/servlet?p=s
ettings-preference&q=load
Configure the backlight of the LCD
screen.
Permitted Values
Integer from 1 to 10
0 or 1
0, 1, 15, 30, 60, 120, 300, 600
or 1800
Default
8
1
Refer to
the
following
111