Yealink SIP-T31G Administrator's Guide

Advanced Features
482
Variable Value Phone Action
T31P/T31G/T31/T21(P) E2, X=2).
LX_LONGPRESS
[1]
Perform a corresponding action when long pressing line key X.
BACK_IDLE Return idle screen directly.
F1-F4 Press the soft keys.
MSG Press the MESSAGE key. (not applicable to CP920 phones)
HEADSET Press the HEADSET key. (not applicable to CP920 phones)
RD Press the RD/Redial key (not applicable to CP920 phones).
UP/DOWN/LEFT/RIGHT Press the navigation keys. (not applicable to T57W phones)
Reboot Reboot the phone.
AutoP Perform auto provisioning.
DNDOn
Activate the DND feature.
Note: It works only if “features.dnd.allow” is set to 1 (Enabled).
DNDOff
Deactivate the DND feature.
Note: It works only if “features.dnd.allow” is set to 1 (Enabled).
number=xxx&outgoing_uri=y
Place a call to xxx from SIP URI y.
Example: http://10.3.20.10/servlet?key=number=1234&outgoing_uri-
i=1006@10.2.1.48 (1234 means the number you dial out;
1006@10.2.1.48 means the SIP URL you dial from.)
OFFHOOK
Pick up the handset. (not applicable to CP920 phones)
Press the off-hook key. (only applicable to CP920 phones)
ONHOOK
Hang up the handset (not applicable to CP920 phones).
Press the on-hook key. (only applicable to CP920 phones)
ANSWER/ASW/Asw Answer a call.
Reset Reset a phone.
ATrans=xxx Perform a semi-attended/attended transfer to xxx.
ATrans=callid_A@callid_B
Join any two call parties together on the phone using the call-id. After
the call is set up, the two parties disconnect with the phone.
Scene:
A and D are in a call, the call is active;
B and D are in a call, the call is placed on hold;
C and D are in a call, the call is placed on hold;
callid_A: 32775

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