Yealink SIP-T31G Administrator's Guide

Administrator’s Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
211
Default
T57W/T54W/T53W/T53/T48U/T48S/T48G/T46U/T46S/T46G/T43U/T33P/T33G/T29G: 0
T42G/T42S/T42U/T41P/T41S/T40P/T40G/T31P/T31G/T31/T27G/T23P/T23G/T21(P) E2/CP920: 30
Supported
Devices
All phones except T30P/T30/T19(P) E2
Web UI
Settings > Preference > Backlight Time(seconds)
Phone UI
Color Screen Phones:
Menu > Basic > Display > Backlight > Backlight Time
Black-and-white Screen Phones:
Menu > Settings > Basic Settings > Display > Backlight > Backlight Time
Label Length for Line Key Display
By default, the line key label only displays the first few characters when the length of the label exceeds the max-
imum length. You can specify the line key label length as needed. It is only applicable to color screen phones.
When label length feature is set to Default:
When label length feature is set to Extended:
l For T54W/T46U/T46S/T46G/T33P/T33G/T29G phones, the display length of the line key label is extended and
the characters are displayed in one line.
l For T57W/T48U/T48S/T48G phones, the characters are displayed in two lines.
When label length feature is set to Mid Range (not applicable to T57W/T48U/T48S/T48G/T33P/T33G phones):

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