Yealink SIP-T27G 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-T27G Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black, Gold
Wall mountable	Yes
Display diagonal	3.66 \
Display resolution	240 x 120 pixels
RJ-9 ports quantity	2
USB 2.0 ports quantity	1
Voice codecs	CNG, G.711, G.722, G.723.1, G.726, G.729, G.729ab, VAD, iLBC
Dual-Tone Multi-Frequency (DTMF) modes	SIP info
Lines quantity	8 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	6
Bluetooth	-
Security algorithms	AES, MD5
Networking standards	IEEE 802.1Q, IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Volume control	Digital
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	210 mm
Width	265 mm
Height	170.5 mm