Yealink SIP-T31G Administrator's Guide

Administrator’s Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
311
Default
0
Parameter
dns_cache_naptr.X.replace
[2]
<y0000000000xx>.cfg
Description
It configures a domain name to be used for the next SRV query in NAPTR record X.
Permitted
Values
Domain name
Default
Blank
Parameter
dns_cache_naptr.X.service
[2]
<y0000000000xx>.cfg
Description
It configures the transport protocol available for the SIP server in NAPTR record X.
Permitted
Values
SIP+D2U-SIP over UDP
SIP+D2T-SIP over TCP
SIPS+D2T-SIPS over TLS
Default
Blank
Parameter
dns_cache_naptr.X.ttl
[2]
<y0000000000xx>.cfg
Description
It configures the time interval (in seconds) that NAPTR record X may be cached before the record
should be consulted again.
Permitted
Values
Integer from 30 to 2147483647
Default
300
Parameter
dns_cache_srv.X.name
[2]
<y0000000000xx>.cfg
Description
It configures the domain name in SRV record X.
Permitted
Values
Domain name
Default
Blank
Parameter
dns_cache_srv.X.port
[2]
<y0000000000xx>.cfg
Description
It configures the port to be used in SRV record X.
Permitted
Values
Integer from 0 to 65535
Default
0
Parameter
dns_cache_srv.X.priority
[2]
<y0000000000xx>.cfg
Description
It configures the priority for the target host in SRV record X.
Lower priority is more preferred.
Permitted
Values
Integer from 0 to 65535
Default
0
Parameter
dns_cache_srv.X.target
[2]
<y0000000000xx>.cfg
Description
It configures the domain name of the target host for an A query in SRV record X.
Permitted
Values
Domain name

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