Christmas cut off: As the cut-off date has passed, Christmas delivery may not be guaranteed. Please select Express shipping for the best chance of delivery before Christmas.
Our team will be on holiday from Dec 22nd to Jan 15th. Please be assured that your order will be dispatched, and any inquiries will be promptly addressed upon our return. We appreciate your understanding and patience during this period.

Christmas cut off: As the cut-off date has passed, Christmas delivery may not be guaranteed. Please select Express shipping for the best chance of delivery before Christmas.

Our team will be on holiday from Dec 22nd to Jan 15th. Please be assured that your order will be dispatched, and any inquiries will be promptly addressed upon our return. We appreciate your understanding and patience during this period.

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Grandstream GSC3516 2-Way SIP Speaker Microphone

EAN: 6947273704287 SKU: GSC3516
Grandstream GSC3516 2-Way SIP Speaker MicrophoneGrandstream GSC3516 2-Way SIP Speaker Microphone
$399
$399$249
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  • Standard to Metro (4-10 biz days)
  • Express to Metro (1-4 biz days)
  • Standard to Non-metro (10-20 biz days)
  • Express to Non-metro (2-6 biz days)
  • Pickup (Same or next biz day)
  • Longer ETA applies to NT, WA, NZ & US locations.
  • The above time frames are estimates only. The actual delivery time is dependent on the shipping location, shipper's processing capacity and other unforeseeable factors i.e. natural disasters, accidents etc. We cannot be held responsible for any courier-related delivery delays.
  • Availability:Out of Stock
  • Model: GSC3516
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GSC3516 SIP/Multicast Talk-Back Speaker with 2-way voice functionality

The GSC3516 is a robust SIP intercom device that provides 2-way voice functionality and a 15W HD speaker with 3 directional microphones and 1 omnidirectional auxiliary microphone for a 4.2 meter pickup distance. With a wide range of peripherals, dual-band Wi-Fi, and advanced echo cancellation, it allows for powerful voice intercom solutions in various settings. The GSC3516 can be paired with other Grandstream devices to create a state-of-the-art security and voice intercom solution, and its modern design and rich features make it suitable for any setting.


  • 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


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