Configuration Methods - Yealink SIP-T2XP Administrator's Manual

3. Press the Save soft key to accept the change.
Note
Before you adjust the LCD's contrast of the expansion module, make sure the expansion
module has been connected to the IP phone.
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 the
backlight when the IP phone is inactive. Backlight time is only applicable to SIP-T22P ,
SIP-T26P and SIP-T28P IP phones, and EXP39 connected to SIP-T26P and SIP-T28P IP phones.
Backlight turns off quickly if a short backlight time is configured, this may not give users
enough time to read messages. Backlight active level is used to adjust the backlight
intensity of the LCD screen. Backlight active level is only applicable to SIP-T28P IP phones
and the connected EXP39.
You can configure the backlight time as one of the following types:
Always Off: Backlight is turned off permanently.

Always On: Backlight is turned on permanently.

15s, 30s, 60s, 120s, 300s, 600s or 1800s: Backlight is turned off when the IP phone is

inactive after a preset period of time (in seconds), but it is automatically turned on if
the status of the IP phone changes or any key is pressed.
The following table lists available methods and configuration options to configure the
backlight of each phone model.
Note
Before you adjust the LCD's backlight of expansion module, make sure the expansion
module has been connected to the IP phone.
Phone Model
SIP-T28P
SIP-T26P
SIP-T22P

Configuration Methods

Configuration Files
Web User Interface
Phone User Interface
Configuration Files
Web User Interface
Phone User Interface
Configuration Files
Configuring Basic Features
Configuration Options
Backlight Active Level
Backlight Time
Backlight Active Level (only
applicable to the
connected EXP39)
Backlight Time
Backlight Time
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