Yealink SIP-T31G Administrator's Guide

Table of Contents
7
Custom Language for Web and Note Display Configuration
197
Contrast
198
Contrast Configuration
198
Wallpaper
199
Wallpaper Configuration
199
Wallpaper Customization
201
Custom Wallpaper Picture Limit
201
Custom Wallpaper Configuration
201
Deleting a Custom Picture
201
Adding a Wallpaper from a USB Flash Drive
201
Example: Setting a Custom Picture as Wallpaper
202
Transparency
202
Transparency Configuration
202
Screen Saver
203
Screensaver Display Customization
203
Screensaver File Elements and Attributes
204
Customizing the Screen Saver File
205
Custom Screensaver Picture Limit
205
Screensaver Configuration
205
Adding a Screensaver Picture from a USB Flash Drive
208
Deleting a Screensaver Picture
208
Backlight
208
Supported Backlight Options
209
Backlight and Time Configuration
209
Label Length for Line Key Display
211
Label Length Display Configuration
212
Label Alignment for Line/Ext Key Display
212
Label Alignment Display Configuration
213
Page Switch Key
213
Page Switch Key Configuration
213
Page Tips
214
Phone Page Tips
214
Phone Page Tips Indicator
214
Phone Page Tips Configuration
215
Expansion Module Page Tips
215
Expansion Module Page Tips Indicator
215
Expansion Module Page Tips Configuration
215
Time and Date
216
Time Zone
216
NTP Settings
220
NTP Configuration
220
DST Settings
222
Auto DST File Attributes
222
Customizing Auto DST File
223
DST Configuration
223

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