· HD audio with Harman speaker and wideband codec G.722 and Opus
· 4.3-inch 480×272-pixel color display
· Two 2.4-inch 320×240-pixel color side display
· 20 SIP lines
· 60 DSS keys, 5 line keys with LED light
· Dual Gigabit port, PoE integrated
· Support built-in Bluetooth
· Support EHS wireless headset
· Support WiFi via WiFi dongle
· Support IPv4 , IPv6 protocol