Yealink SIP-T2 Series User Manual

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series IP Phones
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dark environments. Backlight time specifies the delay time to change the intensity of the LCD
screen when the IP phone is inactive. Backlight turns off quickly if a short backlight time is
configured, this may not give users enough time to read messages. Backlight time is applicable
to
SIP-T48G/T48S/T46G/T46S/T42G/T42S/T41P/T41S/T40P/T40G/T29G/T27P/T27G/T23P/T23G/T2
1(P) E2 IP phones, EXP40 connected to SIP-T48G/T48S/T46G/T46S IP phones and EXP20
connected to SIP-T29G/T27P/T27G IP phones.
You can configure the backlight time as one of the following types:
 Always Off: Backlight is turned off permanently (not applicable to
SIP-T48G/T48S/T46G/T46S/T29G IP phones).
 Always On: Backlight is turned on permanently.
 15s, 30s, 1min, 2min, 5min, 10min or 30min: 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.
Active Backlight Level is used to adjust the backlight intensity of the LCD screen when the phone
is active. Unused BackLight is used to adjust the backlight intensity of the LCD screen when the
phone is inactive. Active Backlight Level is applicable to SIP-T48G/T48S/T46G/T46S IP phones
and the connected EXP40, SIP-T29G/T27P/T27G IP phones and the connected EXP20. Unused
BackLight is only applicable to SIP-T48G/T48S/T46G/T46S IP phones and the connected EXP40,
SIP-T29G IP phones and the connected EXP20.
Note
The following table lists available methods and configuration options to configure the backlight
of phone models/expansion modules.
Phone Model (and
the connected
expansion module)
Configuration
Methods
Configuration Options
T48G/S(EXP40)
T46G/S(EXP40)
T29G(EXP20)
Configuration Files
Web User Interface
Phone User Interface
Unused BackLight/Inactive
Level
Active Backlight Level/Active
Level
Backlight Time
T27P/G(EXP20)
Configuration Files
Web User Interface
Phone User Interface
Active Backlight Level/Active
Level
Backlight Time
T42G/S
Configuration Files
Backlight Time
It is not applicable to SIP-T19(P) E2 IP phones.
Before you adjust the LCD’s backlight of expansion module, make sure the expansion module has
been connected to the IP phone.

Yealink SIP-T2 Series Specifications

General

Brand	Yealink
Model	SIP-T2 Series
Category	IP Phone
Language	English