Yealink SIP-T54S Administrator's Manual page 231

Phone Model (and
the connected
expansion module)
T42G/S
T41P/S
T40P/G
T23P/G
T21(P) E2
CP860
CP920
Procedure
Backlight can be configured using the following methods.
Central Provisioning
(Configuration File)
Web User Interface
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 T54S/T52S IP phones, it configures the LCD's intensity of the IP phone and the
connected EXP50.
For T48G/T48S/T46G/T46S IP phones, it configures the LCD's intensity of the IP phone and
the connected EXP40.
Configuration
Methods
Phone User
Interface
Configuration Files
Web User Interface
Phone User
Interface
Configure the backlight of the LCD screen.
Parameters:
<y0000000000xx>.
phone_setting.active_backlight_level
cfg
phone_setting.inactive_backlight_level
phone_setting.backlight_time
Configure the backlight of the LCD screen.
Navigate to:
http://<phoneIPAddress>/servlet?p=setti
ngs-preference&q=load
Configure the backlight of the LCD screen.
Configuring Basic Features
Configuration Options
Backlight Time
Backlight Time
Permitted Values
Integer from 1 to 10
Default
8
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