+Audio Interfaces
-Amplifier Output: 2x10W, 8Ω (4 pins)
-Headset Output: 3.5mm Jack
-Microphone: 3.5mm Jack
+Other Interfaces
-Power Input: DC 12V-3A Jack
-Volume Control: VOL+ and VOL-, press both to announce IP address
-Ethernet: ETH0+ETH1, 10/100Mbps, ETH0 with PoE IEEE 802.3at enabled
-Call button: Support 2 call buttons (switch button)
-Call button LED: Support 2 call button LED indicators
-Digital level input: 5V Max
-Warranty: 2Years