Yealink SIP-T31G Administrator's Guide

Audio Features
160
over that configured by this parameter.
Permitted
Values
0-Disabled
1-Enabled, if the headset's volume level for the current call is adjusted to level 12/13/14/15, the
volume level automatically resets to 11 after the call. That is, the initial volume level is 11 for the next
call.
Default
1
Supported
Devices
All phones except T48G, T46G, T42G, T41P, T29G and CP920
[1]
If you change this parameter, the phone will reboot to make the change take effect.
Tones
When receiving a message, the phone will play a warning tone. You can customize tones or select specialized tone
sets (vary from country to country) to indicate different conditions of the IP phone.
Topics
Supported Tones
Tones Configuration
Supported Tones
The default tones used on the phones are the US tone sets. Available tone sets for phones:
l Australia
l Austria
l Brazil
l Belgium
l China
l Czech
l Denmark
l Finland
l France
l Germany
l Great Britain
l Greece
l Hungary
l Lithuania
l India
l Italy
l Japan
l Mexico
l New Zealand
l Netherlands
l Norway
l Portugal
l Spain
l Switzerland
l Sweden
l Russia

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