Yealink SIP-T31G Administrator's Guide

Administrator’s Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
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Parameter
transfer.dsskey_deal_type <y0000000000xx>.cfg
Description
It configures the transfer mode for the DSS key. When the user presses the DSS Key during a call, the
DSS Key behavior depends on the transfer mode.
Note: This feature is only applicable to the Speed Dial key, BLF/BLF List key or Transfer key with an
assigned value.
Permitted
Values
0-New Call
1-Attended Transfer
2-Blind Transfer
4-Optional, users can choose to transfer the call via New Call, Attended Transfer or Blind Transfer
manually (not applicable to T48G/T46G/T42G/T41P/T29G phones)
Default
2
Supported
Devices
All phones except T30P, T30, T19(P) E2 and CP920
Web UI
Features > Transfer > Transfer Mode via Dsskey
Conference
The Yealink phones support local conference and network conference.
Topics
Conference Type Configuration
Local Conference Configuration
Network Conference Configuration
Conference Type Configuration
You can specify which type of conference to establish.
The following table lists the parameter you can use to set a conference type.
Parameter
account.X.conf_type
[1]
<MAC>.cfg
Description
It configures the conference type for a specific account.
Permitted
Values
0-Local Conference
2-Network Conference
Default
0
Web UI
Account > Advanced > Conference Type
[1]
X is the account ID. For T57W/T54W/T48U/T48S/T48G/T46U/T46S/T46G/T29G, X=1-16; for
T53W/T53/T43U/T42G/T42U/T42S, X=1-12; for T41P/T41S/T27G, X=1-6; for T33P/T33G, X=1-4; for
T40P/T40G/T23P/T23G, X=1-3; for T31P/T31G/T31/T21(P) E2, X=1-2; for T30P/T30/T19(P) E2/CP920, X=1.
Local Conference Configuration
The local conference requires a host phone to process the audio of all parties. Yealink phones support up to 3
parties (5 parties for CP920/T42U/T43U/T53/T53W/T33P/T33G/T31P/T31G/T31/T30P/T30 phones, 10 partes for
T46U/T48U/T54W/T57W) (including yourself) in a local conference call.
Note: Codecs that can support 10-party conference: G722, G723, G726, G729, PCMA, PCMU, and iLBC; the Opus codec can
only support 5-party conference.
The following table lists the parameters you can use to configure the local conference.

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