Grandstream GSC3516 SIP/Multicast Talk-Back Speaker

The GSC3516 is a SIP/Multicast Talk-Back Speaker that offers 2-way voice, 15W HD speaker and 3 directional microphones with MMAD and 1 omnidirectional microphone with a 4.2 meter pickup distance.

• 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