Yealink SIP-T31G Administrator's Guide

Call Features
386
Ring1.wav, Ring2.wav, Ring3.wav, Ring4.wav, Silent.wav, Splash.wav or custom ring tone name (for
example, Customring.wav)
Default
0
Supported
Devices
All phones except T48G, T46G, T42G, T41P and T29G
Parameter
features.custom_auto_answer_tone.enable <y0000000000xx>.cfg
Description
It configures the type of auto answer tone.
Note: It works only if “features.auto_answer_tone.enable” is set to 1 (Enabled).
Permitted
Values
0-One beep
1-Double beep
Default
1
Parameter
features.mute.autoanswer_mute.enable <y0000000000xx>.cfg
Description
It enables or disables the auto answer mute feature.
Note: It works only if “account.X.auto_answer” and “features.allow_mute” are set to 1 (Enabled). It is
not available to the intercom call.
Permitted
Values
0-Disabled
1-Enabled, the phone will mute the microphone when an incoming call is automatically answered,
and then the other party cannot hear you.
Default
0
Parameter
pstn.account.X.auto_answer
[2]
<MAC>.cfg
Description
It enables or disables the auto answer feature for PSTN account X.
Note: The IP phone cannot automatically answer the incoming call during a call even if the auto
answer is enabled.
Permitted
Values
0-Disabled
1-Enabled, the phone can automatically answer an incoming call.
Default
0
Supported
Devices
CP920
Web UI
Account > Basic > Auto Answer
Phone UI
Menu > Features > Auto Answer > Status
Parameter
pstn.account.X.auto_answer_mute_enable
[2]
<MAC>.cfg
Description
It enables or disables the auto answer mute feature for PSTN account X.
Note: It works only if the values of parameters “pstn.account.X.auto_answer” and “features.allow_
mute” are set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled, the phone will mute the microphone when an incoming call is automatically answered,
and then the other party cannot hear you.
Default
0
Supported
Devices
CP920

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