Yealink SIP-T4X Administration Manual page 185

Administrator's Guide for SIP-T4X IP Phones
To configure LLDP via web user interface:
1. Click on Network->Advanced.
2. In the LLDP block, select the desired value from the pull-down list of Active.
3. Enter the desired time interval in the Packet Interval (1~3600s) field.
4. Click Confirm to accept the change.
A dialog box pops up to prompt that the settings will take effect after reboot.
5. Click OK to reboot the IP phone.
VLAN (Virtual Local Area Network) is used to logically divide a physical network into
several broadcast domains. VLAN membership can be configured through software
instead of physically relocating devices or connections. Grouping devices with a
common set of requirements regardless of their physical location can greatly simplify
network design. VLANs can address issues such as scalability, security, and network
management.
The purpose of VLAN configurations on the IP phone is to insert tag with VLAN
information to the packets generated by the IP phone. When VLAN is properly
configured for the ports (internet port and PC port) on the IP phone, the IP phone will tag
all packets from these ports with the VLAN ID. The switch receives and forwards the
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Navigate to:
http://<phoneIPAddress>/servl
et?p=network-adv&q=load