1.     Stainless steel faceplate, surface mount or flush mounting

2.     Double call buttons, can call different goals (set in server), realize dull-duplex talkback.

3.     Built-in speaker and microphone, hands-free call and broadcasting receiving.

4.     Digital recording, upload to server automatically

5.     With audio output interface, can connect to external speaker

6.     Short-circuit output for connect electronic lock or alarm light, etc.

7.     Can linkage with video monitoring system.

8.     Remote software update, configuration monitoring

9.     Works everywhere as long as Ethernet is available.