Supported Backlight Options; Backlight Brightness And Time Configuration - Yealink SIP-T2 Series Administrator's Manual

Administrator's Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
Always On: Backlight is on permanently.
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Always Off: Backlight is off permanently. It is not available for the T54S/T52S/T48S/T48G/T46S/T46G/T29G IP phone.
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15s, 30s, 1min, 2min, 5min, 10min or 30min: Backlight is changed when the phone is inactive after the designated
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time (in seconds).
Topics

Supported Backlight Options

Backlight Brightness and Time Configuration

Supported Backlight Options
The following table lists available configuration options to configure the backlight of phone models/expansion mod-
ules:
Phone Model (and the connected
expansion module)
T54S/T52S(EXP50)
T48S/G(EXP40)
T46S/G(EXP40)
T29G(EXP20)
T27G(EXP20)
T42S/G
T41P/S
T40P/G
T23P/G
T21(P) E2
CP920
Backlight Brightness and Time Configuration
The following table lists the parameters you can use to configure screen backlight brightness and time.
Parameter phone_setting.active_backlight_level
It configures the intensity of the LCD screen when the phone is active.
Description
Note: It is applicable to the T54S/T52S/T48S/T48G/T46S/T46G/T29G/T27G IP phone. If the expansion mod-
ule is connected, the backlight on the expansion module automatically changes to match this setting.
Permitted
Integer from 1 to 10
Values
Default 8
Web UI Settings->Preference->Active Backlight Level
Phone UI T54S/T52S/T48S/T48G/T46S/T46G/T29G:
112
Inactive Level (not applicable to EXP50)
Active Level
Backlight Time (not applicable to EXP50)
Active Level
Backlight Time
Backlight Time
<y0000000000xx>.cfg
Configuration Options