Manufacturer: Cisco IP Address Assignment: DHCP , Static Lines Supported: 2 lines Main Features: Integrated Ethernet switch , Multiple VoIP protocol support Network Features: Network features include LLDP-MED, Cisco Discovery Protocol and IEEE 802.1 p/q tagging and switching. Network Ports: The phone has a 10/100/1000BASE-T Ethernet connection through two RJ-45 ports, one for the LAN connection and the other for connecting a downstream Ethernet device such as a PC. Network Protocols: TFTP Power Over Ethernet (PoE) Support: Yes Quality of Service: The phones can receive power from IEEE 802.3af-compliant blades. The phone is Power over Ethernet (PoE) Class 2 Security: 128-bit AES Voice Codecs: G.711a, G.711u, G.729a, G.729ab, G.722, and Internet Low Bitrate (iLBC) audio compression codecs are supported. Voice Features: Echo cancellation (ECN) VoIP: Yes VoIP Protocols: SCCP , SIP Conference Call Capability: Yes Dialer Location: Base Dialer Type: Keypad Firmware Upgradable: Yes Type: VoIP phone