Yealink SIP-T2 Series Administrator's Manual page 119

Menu->Basic->Display->Backlight->Active Level
T27G:
Menu->Settings->Basic Settings->Display->Backlight
Parameter phone_setting.inactive_backlight_level
It configures the intensity of the LCD screen when the phone is inactive.
Note: It is applicable to theT54S/T52S/T48S/T48G/T46S/T46G/T29G IP phone. If expansion module EXP20
Description
or EXP40 is connected, the backlight on the expansion module automatically changes to match this set-
ting.
0-Off, it works only if "phone_setting.backlight_time" is not set to 1 (Always On).
Permitted
Values
1-Low
Default 1
Web UI Settings->Preference->Inactive Level
Phone UI Menu->Basic>Display->Backlight->Inactive Level
Parameter phone_setting.backlight_time
It configures the delay time (in seconds) to change the intensity of the LCD screen when the IP phone is
inactive.
Description
Note: It is not applicable to T19(P) E2 IP phones.
0-Always On
1-Always Off (not applicable to T54S/T52S/T48S/T48G/T46S/T46G/T29G IP phones)
15-15s
30-30s
Permitted
60-1min
Values
120-2min
300-5min
600-10min
1800-30min
T54S/T52S/T48S/T48G/T46S/T46G/T29G: 0
Default
T42G/T42S/T41P/T41S/T40P/T40G/T27G/T23P/T23G/T21(P) E2/CP920: 30
Web UI Settings->Preference->Backlight Time(seconds)
T54S/T52S/T48S/T48G/T46S/T46G/T29G:
Menu->Basic->Display->Backlight->Backlight Time
Phone UI
T42G/T42S/T41P/T41S/T40P/T40G/T27G/T23P/T23G/T21(P) E2/CP920:
Menu->Settings->Basic Settings->Display->Backlight->Backlight Time
<y0000000000xx>.cfg
<y0000000000xx>.cfg
Phone Customization
113