Yealink SIP-T31G Administrator's Guide

Account Settings
312
Default
Blank
Parameter
dns_cache_srv.X.weight
[2]
<y0000000000xx>.cfg
Description
It configures the weight of the target host in SRV record X.
When priorities are equal, weight is used to differentiate the preference. Higher weight is more pre-
ferred.
Permitted
Values
Integer from 0 to 65535
Default
0
Parameter
dns_cache_srv.X.ttl
[2]
<y0000000000xx>.cfg
Description
It configures the time interval (in seconds) that SRV record X may be cached before the record should
be consulted again.
Permitted
Values
Integer from 30 to 2147483647
Default
300
Parameter
dns_cache_a.X.name
[2]
<y0000000000xx>.cfg
Description
It configures the domain name in A record X.
Permitted
Values
Domain name
Default
Blank
Parameter
dns_cache_a.X.ip
[2]
<y0000000000xx>.cfg
Description
It configures the IP address that the domain name in A record X maps to.
Permitted
Values
IP address
Default
Blank
Parameter
dns_cache_a.X.ttl
[2]
<y0000000000xx>.cfg
Description
It configures the time interval (in seconds) that A record X may be cached before the record should be
consulted again.
Permitted
Values
Integer from 30 to 2147483647
Default
300
Parameter
static.network.dns.ttl_enable
[3]
<y0000000000xx>.cfg
Description
It enables or disables the phone to use TTL (Time To Live) in the A record.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Parameter
static.network.dns.last_cache_expired <y0000000000xx>.cfg
Description
It configures the validity period of the expired DNS cache.
Note: It works only if "static.network.dns.last_cache_expired.enable" is set to 1 (Enabled).
Permitted
Values
Integer from 0 to 65535
0-the expired DNS cache can only be used once. After using, the phone will perform a DNS query

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