Yealink SIP-T40G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
36
Web UI
Network > Advanced > LLDP > Packet Interval (1~3600s)
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > Network > LLDP > Packet Interval
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Network > LLDP > Packet Interval
[1]
If you change this parameter, the phone will reboot to make the change take effect.
CDP Configuration
CDP (Cisco Discovery Protocol) allows the phones to receive and/or transmit device-related information from/to dir-
ectly connected devices on the local network.
When CDP feature is enabled on the phones, the phones periodically advertise their own information to the directly
connected CDP-enabled switch. The phones can also receive CDP packets from the connected switch and obtain
their VLAN IDs.
The following table lists the parameters you can use to configure CDP.
Parameter
static.network.cdp.enable
[1]
<y0000000000xx>.cfg
Description
It enables or disables the CDP feature.
Permitted
Values
0-Disabled
1-Enabled, the phone attempts to determine its VLAN ID through CDP.
Default
1
Web UI
Network > Advanced > CDP > Active
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > Network > CDP > CDP Status
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Network > CDP > CDP Status
Parameter
static.network.cdp.packet_interval
[1]
<y0000000000xx>.cfg
Description
It configures the interval (in seconds) that how often the phone sends the CDP request.
Note: It works only if “static.network.cdp.enable” is set to 1 (Enabled).
Permitted
Values
Integer from 1 to 3600
Default
60
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.

Yealink SIP-T40G Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Wall mountable	Yes
Wi-Fi	No
Security algorithms	AES, HTTPS, SSL/TLS
Networking standards	IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	FTP, TFTP, HTTP, HTTPS
Voice codecs	G.711, G.711a, G.711u, G.722, G.726, G.729ab
RJ-11 ports quantity	1
Ethernet LAN (RJ-45) ports	2
AC adapter input voltage	100 - 240 V
AC adapter output current	0.6 A
AC adapter output voltage	5 V
Power consumption (typical)	1.6 W
Certification	CE, FCC, ISO 9001
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 90 %
Volume control	Digital
Display diagonal	2.3 \
Display resolution	132 x 64 pixels
Lines quantity	3 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	3
Number of handles included	1 pc(s)

Weight and Dimensions

Depth	175 mm
Width	212 mm
Height	54 mm