Yealink SIP-T31G Administrator's Guide

Configuration Parameters
538
Description
It configures how the phone behaves when pressing the OK key during the call.
Permitted
Values
0-Do not response
1-The phone sends a SIP INFO request that contains the event flashhook message body to the
remote party.
2-Enter the Status screen, you can check the firmware version, phone's IP address and so on for
troubleshooting.
3-Unhold the call
4-Enter the Menu screen, you are allowed to configure Call Forward, Call Waiting, Auto Answer, Key
As Send, Hotline, Auto Redial, DND, Intercom, Call Completion, History Setting, Paging List features.
Default
0
Supported
Devices
All phones except T57W, T48G, T46G, T42G, T41P and T29G
Unify Parameters
Parameter
unify.enable <y0000000000xx>.cfg
Description
It enables or disables the Unify features.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Supported
Devices
T57W, T54W, T53W, T53, T48U, T46U, T43U, T42U, T48S, T46S, T42S, T41S, T33P, T33G, T31P,
T31G, T31, T30P, T30, T27G and CP920
Case Scen-
ario
Identify the Notify messages sent by the Unify server and synchronize the FWD / DND feature with
server.

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