Cisco 7960G IP Telephone (CP-7960G) 10/100BASE-T Ethernet network via an RJ-45 interface with single LAN connectivity. H.323 compatible and Microsoft NetMeeting compatibility. Hearing-AID- Compatible Handset, G.711 and G.729a audio compression. LCD Display allows the use of XML Features. Cisco Call Manager Required (Sold Separately). Power supply sold separately.