Yealink SIP-T2 SERIES Administrator's Manual page 707

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 settings will take effect after a reboot.
5. Click OK to reboot the phone.
To configure LLDP feature via phone user interface:
1. Press Menu->Settings->Advanced Settings (default password: admin)
->Network->LLDP->LLDP Status.
2. Press or , or the Switch soft key to select the desired value from the LLDP
Status field.
3. Enter the priority value (1-3600s) in the Packet Interval field.
4. Press the Save soft key to accept the change.
The IP phone reboots automatically to make settings effective after a period of time.
CDP (Cisco Discovery Protocol) allows IP phones to receive and/or transmit
device-related information from/to directly connected devices on the network that are
also using the protocol, and store the information about other devices.
When CDP feature is enabled on IP phones, the IP phones periodically advertise their
own information to the directly connected CDP-enabled switch. The IP phones can also
receive CDP packets from the connected switch. When the VLAN configurations on the IP
phones are different from the ones sent by the switch, the IP phones perform an update
and reboot. This allows the IP phones to be plugged into any switch, obtain their VLAN
IDs, and then start communications with the call control.
Procedure
CDP can be configured using the configuration files or locally.
Configuration File <y0000000000xx>.cfg
Configuring Advanced Features
Configure CDP .
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