Full-duplex speakerphone with HD acoustic chamber, advanced acoustic echo cancellation 3 directional mics with MMAD & microphone beamforming array and 1 omnidirectional auxiliary microphone Full-band and wide-band audio codec support including Opus & G.722 Integrated dual-band 802.11 a/b/g/n/ac Wi-Fi and Bluetooth One 10/100Mbps network port with PoE/PoE+ 2-pin multi-purpose input to support peripherals including call buttons