Yealink SIP-T31G Administrator's Guide

Administrator’s Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
40
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Network > VLAN > DHCP VLAN >
Option
[1]
If you change this parameter, the phone will reboot to make the change take effect.
VLAN Change Configuration
The following table lists the parameter you can use to configure the VLAN change.
Parameter
static.network.vlan.vlan_change.enable
[1]
<y0000000000xx>.cfg
Description
It enables or disables the phone to obtain VLAN ID using lower preference of VLAN assignment
method, or to close the VLAN feature when the phone cannot obtain VLAN ID.
The priority of each method is LLDP/CDP > Manual > DHCP VLAN.
Permitted
Values
0-Disabled
1-Enabled, the phone attempts to use the lower priority method when failing to obtain the VLAN ID
using higher priority method. If all the methods are attempted, the phone will disable VLAN feature.
Default
0
[1]
If you change this parameter, the phone will reboot to make the change take effect.
Wi-Fi
Wi-Fi feature enables you to connect the phones to the organization’s wireless network. Wi-Fi feature is only applic-
able to T57W/T54W/T53W/T53/T48U/T48S/T48G/T46U/T46S/T46G/T43U/T42U/T42S/T41S/T29G/T27G/CP920
phones.
You can configure the phones to operate in IPv4, IPv6, or dual-stack (IPv4/IPv6) mode, and configure IPv4 or IPv6
wireless network settings manually.
Note: To use Wi-Fi feature on T53/T48U/T48S/T48G/T46U/T46S/T46G/T43U/T42U/T42S/T41S/T29G/T27G phones, make
sure the Wi-Fi USB dongle is properly connected to the USB port on the back of the phone.
Topics
Wi-Fi Configuration
Wireless Network IP Addressing Mode Configuration
IPv4 Wireless Network Configuration
IPv6 Wireless Network Configuration
Wi-Fi Configuration
The following table lists the parameters you can use to configure Wi-Fi.
Parameter
static.wifi.function.enable
[1]
<y0000000000xx>.cfg
Description
It enables or disables the Wi-Fi feature.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Supported
Devices
T57W, T54W, T53W, T53, T48U, T48S, T48G, T46U, T46S, T46G, T43U, T42U, T42S, T41S, T29G,
T27G, CP920
Parameter
static.network.redundancy.mode
[1]
<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