Yealink SIP-T31G Administrator's Guide

Network Configurations
37
Web UI
Network > Advanced > CDP > Packet Interval (1~3600s)
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > Network > CDP > CDP Interval
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Network > CDP > CDP Interval
[1]
If you change this parameter, the phone will reboot to make the change take effect.
Manual VLAN Configuration
You can configure VLAN for the Internet port and PC port manually. Before configuring VLAN on the phones, you
need to obtain the VLAN ID from your network administrator.
For CP920 phones, you can only configure VLAN for the Internet port manually, because they only have an Internet
port.
The following table lists the parameters you can use to configure VLAN manually.
Parameter
static.network.vlan.internet_port_enable
[1]
<y0000000000xx>.cfg
Description
It enables or disables the VLAN for the Internet port.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Web UI
Network > Advanced > VLAN > WAN Port > Active
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > Network > VLAN > WAN Port > VLAN Status
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Network > VLAN > WAN Port >
VLAN Status
Parameter
static.network.vlan.internet_port_vid
[1]
<y0000000000xx>.cfg
Description
It configures the VLAN ID for the Internet port.
Note: It works only if “static.network.vlan.internet_port_enable” is set to 1 (Enabled).
Permitted
Values
Integer from 1 to 4094
Default
1
Web UI
Network > Advanced > VLAN > WAN Port > VID (1-4094)
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > Network > VLAN > WAN Port > VID Number
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Network > VLAN > WAN Port > VID
Number
Parameter
static.network.vlan.internet_port_priority
[1]
<y0000000000xx>.cfg
Description
It configures the VLAN priority for the Internet port.
7 is the highest priority, 0 is the lowest priority.

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