Configuring Advanced Features1573. Select DNS-SRV from the pull-down list of Transport.4. Click Confirm to accept the change.LLDP (Linker Layer Discovery Protocol) is a vendor-neutral Link Layer protocol. It allows IPphones to receive and/or transmit device-related information to directly connecteddevices on the network that are also using the protocol, and store the information that islearned about other devices. LLDP transmits information as packets called LLDP DataUnits (LLDPDUs). An LLDPDU consists of a set of Type-Length-Value (TLV) elements, eachof which contains a particular type of information about the device or port transmittingit.LLDP-MED (Media Endpoint Discovery)LLDP-MED is published by the Telecommunications Industry Association (TIA). It is anextension to LLDP that operates between endpoint devices and network connectivitydevices. LLDP-MED provides the following capabilities for the IP phone: Capabilities Discovery — allows LLDP-MED endpoints to determine the capabilitiesthat the connected device supports and has enabled. Network Policy — provides voice VLAN configuration to notify a device which VLANto use and QoS-related configuration for voice data. It provides a ―plug and play‖network environment. Power Management — provides information related to how the device is powered,
