Yealink SIP-T33P Administrator's Guide

Network Configurations
35
Parameters DHCPv6 Option Description
client.
Information
Refresh Time
32
Specify an upper bound for how long a client should wait before refreshing
information retrieved from DHCPv6.
Boot File URL 59 Specify a URL for the boot file to be downloaded by the client.
DHCP Option 59 and Custom Option
During the startup, the phone automatically detects the DHCP option for obtaining the provisioning server address.
The priority is as follows: custom option > option 59.
Related Topic
DHCP Provision Configuration
VLAN
The purpose of VLAN configurations on the phone is to insert a tag with VLAN information to the packets generated
by the phone. When VLAN is properly configured for the ports (Internet port and PC port) on the phone, the phone
will tag all packets from these ports with the VLAN ID. The switch receives and forwards the tagged packets to the
corresponding VLAN according to the VLAN ID in the tag as described in IEEE Std 802.3.
In addition to manual configuration, the phone also supports the automatic discovery of VLAN via LLDP, CDP or
DHCP. The assignment takes effect in this order: assignment via LLDP/CDP, manual configuration, then assign-
ment via DHCP.
For more information on VLAN, refer to VLAN Feature on Yealink IP Phones.
Topics
LLDP Configuration
CDP Configuration
Manual VLAN Configuration
DHCP VLAN Configuration
VLAN Change Configuration
LLDP Configuration
LLDP (Linker Layer Discovery Protocol) is a vendor-neutral Link Layer protocol, which allows the phones to advert-
ise its identity and capabilities on the local network.
When LLDP feature is enabled on the phones, the phones periodically advertise their own information to the dir-
ectly connected LLDP-enabled switch. The phones can also receive LLDP packets from the connected switch and
obtain their VLAN IDs.
The following table lists the parameters you can use to configure LLDP.
Parameter
static.network.lldp.enable
[1]
<y0000000000xx>.cfg
Description
It enables or disables the LLDP feature.
Permitted
Values
0-Disabled
1-Enabled, the phone attempts to determine its VLAN ID through LLDP.
Default
1
Web UI
Network > Advanced > LLDP > Active
Phone UI
Color Screen Phones:

Yealink SIP-T33P Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Gray
Wall mountable	Yes
Operating system installed	Linux
Lines quantity	4 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	4
Volume control	Buttons
Number of function keys	5
Display diagonal	2.4 \
Display resolution	320 x 240 pixels
Voice codecs	AGC, AJB, CNG, G.711a, G.711u, G.722, G.723.1, G.726, G.729, G.729A, PLC, VAD, iLBC
Security algorithms	AES, HTTPS
Ethernet LAN data rates	10, 100 Mbit/s
Ethernet LAN interface type	Fast Ethernet
RJ-9 ports quantity	1
Ethernet LAN (RJ-45) ports	2
Input frequency	50/60 Hz
AC adapter input voltage	100 - 240 V
Power consumption (typical)	3 W
Power consumption (Power over Ethernet (PoE))	5 W
Number of handles included	1 pc(s)
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %

Weight and Dimensions

Depth	186 mm
Width	212 mm
Height	146 mm