Yealink SIP-T31G Administrator's Guide

Administrator’s Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
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Parameter
features.blf.intercom_mode.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to initiate an outgoing intercom call with a monitored user when
pressing the BLF key.
Note: To use this feature, you also need to configure the intercom mode (configured by the parameter
“features.intercom.mode”).
Permitted
Values
0-Disabled
1-Enabled
Default
0
Supported
Devices
All phones except T30P, T30, T19(P) E2 and CP920
Call Information Display Configuration
The following table lists the parameter you can use to configure call information display.
Parameter
features.blf.show_callinfo.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to display the call information by long pressing the BLF/BLF List key.
Permitted
Values
0-Disabled
1-Enabled, when the monitored line is ringing, during a call, or has a parked call, users can long
press the BLF/BLF List key to view the call information, and then select to pick up the incoming call,
barge in a conference, or retrieve the parked call.
Default
0
Supported
Devices
All phones except T48G, T46G, T42G, T41P, T30P, T30, T29G, T19(P) E2 and CP920
Shared Line
Yealink phones support Shared Call Appearance (SCA) and Bridged Line Appearance (BLA) to share a line.
Shared call appearances and bridged line appearances are similar signaling methods that enable more than one
phone to share the same line or registration. The methods you use vary with the SIP server you are using.
The shared line users have the ability to do the following:
l Place and answer calls
l Place a call on hold
l Retrieve a held call remotely
l Barge in an active call (only SCA)
l Pull a shared call (only SCA)
Topics
State Indicator of Shared Line
Shared Call Appearance (SCA) Configuration
Bridge Lines Appearance (BLA)
State Indicator of Shared Line
The shared line is indicated by different line key icon. Line key icon is not available on the T30P/T30/T19(P) E2
phones.
The following table shows the LED/icons indicator associated with the shared line:

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