Yealink SIP-T3 Administrator's Manual page 244

Administrator's Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
T48S/T48G/T46S/T46G/T29G/T27G:
Settings > Preference > Active Backlight Level
Web UI
T57W/T54W/T53W/T53/T53C/T48U/T46U/T43U/T42U/T33P/T33G/T31P/T31G/T31/CP925/CP935W:
Settings > Preference > Active Level
Color Screen Phones:
Menu > Basic > Display > Backlight > Active Level
CP925/CP935W:
Phone UI
More > Basic > Display > Backlight > Active Level
Black-and-white Screen Phones:
Menu > Settings > Basic Settings > Display > Backlight > Active Level
Parameter phone_setting.inactive_backlight_level
It configures the intensity of the LCD screen when the phone is inactive.
Descrip-
Note: If expansion module EXP20 or EXP40 is connected, the backlight on the expansion module auto-
tion
matically changes to match this setting.
0-Off, it works only if "phone_setting.backlight_time" is not set to 1 (Always On).
Permitted
Values
1-Low
Default 1
Supported
All color screen phones
Devices
Web UI Settings > Preference > Inactive Level
Menu > Basic > Display > Backlight > Inactive Level
Phone UI CP925/CP935W:
More > Basic > Display > Backlight > Inactive Level
Parameter phone_setting.backlight_time
Descrip-
It configures the delay time (in seconds) to change the intensity of the LCD screen when the phone is
inactive.
tion
0-Always On
1-Always Off (not applicable to color screen phones)
15-15s
30-30s
60-1min
120-2min
Permitted
Values
300-5min
600-10min
1800-30min
3600-1h
7200-2h
14400-4h
238
<y0000000000xx>.cfg
<y0000000000xx>.cfg