Yealink SIP-T31G Administrator's Guide

Administrator’s Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
126
Permitted
Values
-1-Do not modify the handset configuration (Keep the original configuration of the handset).
0-Disabled, the backlight will be turned off after the handset is idle for about 10 seconds.
1-Enabled, the backlight will be turned off after the handset is idle for about 30 minutes.
Default
-1
Supported
Devices
W53H, W56H
Handset UI
OK > Settings > Display > Display Backlight > In Charger
Parameter
custom.handset.backlight_out_of_charger.enable <y0000000000xx>.cfg
Description
It enables or disables the handset backlight to be on for about 30 minutes when it is not charged.
Note: It will take effect on all handsets that are registered on the same phone. It works only if “stat-
ic.auto_provision.handset_configured.enable” is set to 1 (Enabled).
Permitted
Values
-1-Do not modify the handset configuration (Keep the original configuration of the handset).
0-Disabled, the backlight will be turned off after the handset is idle for about 10 seconds.
1-Enabled, the backlight will be turned off after the handset is idle for about 30 minutes.
Default
-1
Supported
Devices
W53H, W56H
Handset UI
OK > Settings > Display > Display Backlight > Out Of Charger
Handset Keypad Light
You can enable the handset keypad light to light up the keypad when any key is pressed. This helps you dis-
tinguish keys from each other in a dark environment.
Topic
Handset Keypad Light Configuration
Handset Keypad Light Configuration
The following table lists the parameter you can use to configure the handset keypad light.
Parameter
custom.handset.keypad_light.enable <y0000000000xx>.cfg
Description
It enables or disables the handset to turn on the keypad light (digital key, # key, * key, TRAN key, and
Mute key) when any key is pressed.
Note: It will take effect on all handsets that are registered to the same phone. It works only if “stat-
ic.auto_provision.handset_configured.enable” is set to 1 (Enabled).
Permitted
Values
-1-Do not modify the configuration.
0-Disabled
1-Enabled
Default
-1
Supported
Devices
W53H, W56H
Handset UI
OK > Settings > Display > Keypad LED

Yealink SIP-T31G Specifications

General

Mounting kit	Yes
Number of handles included	1 pc(s)
Display diagonal	2.3 \
Display resolution	132 x 64 pixels
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Voice codecs	G.722, G.729, AGC, G.729A, AJB, PLC, G.711Mu, VAD, G.711a, G.723.1, G.726, iLBC, CNG, OPUS
AC adapter input voltage	100 - 240 V
AC adapter output current	0.6 A
AC adapter output voltage	5 V
Power consumption (typical)	3 W
Lines quantity	2 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	2
Sustainability certificates	RoHS, REACH
Networking standards	IEEE 802.3af, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1x
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Gray
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	189 mm
Width	188 mm
Height	162 mm
Package depth	210 mm
Package width	213 mm
Package height	103 mm