Yealink SIP-T31G Administrator's Guide

Administrator’s Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
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Save the language pack and place it to the provisioning server.
Custom Language for Phone Display Configuration
The following table lists the parameters you can use to configure a custom language for the phone display.
Parameter
gui_lang.url <y0000000000xx>.cfg
Description
It configures the access URL of the custom LCD language pack for the phone user interface.
Note: You can also download multiple language packs to the phone simultaneously.
Permitted
Values
URL within 511 characters
Default
Blank
Parameter
gui_lang.delete <y0000000000xx>.cfg
Description
It deletes the specified or all custom LCD language packs of the phone user interface.
Permitted
Values
For example http://localhost/all or http://localhost/X.GUI.name.lang
X starts from 017, “name” is replaced with the language name.
Default
Blank
Example: Setting a Custom Language for Phone Display
The following example shows the configuration for uploading custom language files “017.GUI.English_17.lang” and
“018.GUI.English_18.lang”, and then specify “017.GUI.English_17.lang” to display on the phone user interface.
These language files are customized and placed on the provisioning server “192.168.10.25”.
Example
gui_lang.url= http://192.168.10.25/017.GUI.English_17.lang
gui_lang.url= http://192.168.10.25/018.GUI.English_18.lang
lang.gui=English_17

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