· HD audio with Harman speaker and wideband codec G.722 and Opus
· 2.8-inch 320×240-pixel color display
· 2.4-inch 320×240-pixel color side display
· 12 SIP lines
· 30 DSS keys, 3 line keys with LED light
· Dual Gigabit port, PoE integrated
· Support EHS wireless headset
· Support Bluetooth via Bluetooth dongle
· Support WiFi via WiFi dongle
· Support IPv4 , IPv6 protocol