Yealink SIP-T31G Administrator's Guide

Administrator’s Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
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Parameter
static.network.preference
[1]
<y0000000000xx>.cfg
Description
It specifies IPv4 or IPv6 as the preferred wired network in a Dual-Stack mode.
Note: It works only if “static.network.ip_address_mode” is set to 2 (IPv4 & IPv6).
Permitted
Values
0-IPv6
1-IPv4
Default
0
Web UI
Network > Basic > Internet Port > Preference(IPv4/IPv6)
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > Network > WAN Port > Preference
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Network > WAN Port > Preference
Parameter
account.X.sip_server_mode
[2]
<MAC>.cfg
Description
It specifies the preferred network in a Dual-Stack mode when a domain name is configured for a SIP
server.
Note: It works only if “static.network.ip_address_mode” is set to 2 (IPv4 & IPv6).
Permitted
Values
0-Specify IPv4 as the preferred network and A query will be performed preferentially.
1-Specify IPv6 as the preferred network and AAAA query will be performed preferentially.
2-The preferred network is configured by “static.network.preference”.
Default
0
[1]
If you change this parameter, the phone will reboot to make the change take effect.
[2]
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.
IPv4 Wired Network Configuration
The following table lists the parameters you can use to configure IPv4 wired network.
Parameter
static.network.internet_port.type
[1]
<y0000000000xx>.cfg
Description
It configures the Internet port type for IPv4 wired network.
Note: It works only if “static.network.ip_address_mode” is set to 0 (IPv4) or 2 (IPv4 & IPv6).
Permitted
Values
0-DHCP
2-Static IP
Default
0
Web UI
T57W/T54W/T53W/T53/T48U/T46U/T43U/T42U:
Network > Basic > IPv4 Config > Configuration Type
Other Phones:
Network > Basic > IPv4 Config
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > Network > WAN Port > IPv4
Black-and-white Screen Phones:

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