Wideband codec G.722 and Opus
3.5-inch 480x320 pixel color display
2.4 inch 240x320 pixel color side display
16 SIP lines
30 DSS keys, 4 lines keys with LED light
Dual Gigabit port, PoE integrated
The first version supports Bluetooth 2.1
The second version supports Bluetooth 4.2
The first version supports 3-way conference
The second version supports 6-way conference
Support Wi-Fi via Wi-Fi Dongle
Support IPv4 and IPv6 protocol