Yealink SIP-T31G Administrator's Guide

Administrator’s Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
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Network > Basic > IPv4 Config > Static IP Address > Default Gateway
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > Network > WAN Port > IPv4 > Static IP > Default Gate-
way
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Network > WAN Port > IPv4 >
Static IPv4 Client > Default Gateway
Parameter
static.network.static_dns_enable
[1]
<y0000000000xx>.cfg
Description
It triggers the static DNS feature to on or off for the wired network.
Note: It works only if “static.network.internet_port.type” is set to 0 (DHCP).
Permitted
Values
0-Off, the phone will use the IPv4 DNS obtained from DHCP.
1-On, the phone will use manually configured static IPv4 DNS.
Default
0
Web UI
Network > Basic > IPv4 Config > Static DNS
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > Network > WAN Port > IPv4 > Type(DHCP) > Static
DNS
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Network > WAN Port > IPv4 >
DHCP IPv4 Client > Static DNS
Parameter
static.network.primary_dns
[1]
<y0000000000xx>.cfg
Description
It configures the primary IPv4 DNS server for the wired network.
Note: It works only if “static.network.ip_address_mode” is set to 0 (IPv4) or 2 (IPv4 & IPv6). In the
DHCP environment, you need to make sure “static.network.static_dns_enable" is set to 1 (On).
Permitted
Values
IPv4 Address
Default
Blank
Web UI
T57W/T54W/T53W/T53/T48U/T46U/T43U/T42U:
Network > Basic > IPv4 Config > Static DNS > Primary DNS
Other Phones:
Network > Basic > IPv4 Config > Static IP Address > Primary DNS
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > Network > WAN Port > IPv4 > Static IP > Pri.DNS
In the DHCP environment:
Menu > Advanced (default password: admin) > Network > WAN Port > IPv4 > DHCP > Static DNS
(Enabled) > Pri.DNS
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Network > WAN Port > IPv4 >
Static IPv4 Client > Pri.DNS
In the DHCP environment:

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