Yealink SIP-T31G Administrator's Guide

General Features
497
[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.
Return Code for Refused Call
You can define the return code and reason of the SIP response message for the refused call. The caller’s phone
LCD screen displays the reason according to the received return code. Available return codes and reasons are:
l 404 (Not Found)
l 480 (Temporarily Unavailable)
l 486 (Busy Here)
l 603 (Decline)
Topic
Return Code for Refused Call Configuration
Return Code for Refused Call Configuration
The following table lists the parameters you can use to configure the return code for the refused call.
Parameter
features.normal_refuse_code <y0000000000xx>.cfg
Description
It configures a return code and reason of SIP response messages when the phone rejects an incom-
ing call. A specific reason is displayed on the caller’s phone screen.
Permitted
Values
404-Not Found
480-Temporarily Unavailable
486-Busy Here
600-Busy Everywhere
603-Decline
Default
486
Web UI
Features > General Information > Return Code When Refuse
Return Code for Unanswered Call
You can define the return code and reason of the SIP response message for the unanswered call. The caller’s
phone LCD screen displays the reason according to the received return code. Available return codes and reasons
are:
l 404 (Not Found)
l 480 (Temporarily Unavailable)
l 486 (Busy Here)
l 603 (Decline)
This feature is not applicable to T48G/T46G/T42G/T41P/T29G phones.
Topic
Return Code for Unanswered Call Configuration
Return Code for Unanswered Call Configuration
The following table lists the parameters you can use to configure the return code for the refused call.
Parameter
features.no_answer_code <y0000000000xx>.cfg

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