Grandstream GSC3518HS Outdoor Talk-Back Speaker

GSC3518HS

Outdoor SIP/Multicast Talk-Back Horn Speaker


The GSC3518HS is a SIP/multicast talk-back horn speaker that provides crystal clear HD audio, a high-fidelity 50-Watt speaker, and IP66-rated water and dust protection. Ideal for outdoor campuses, public spaces, large offices, school playgrounds, hospitals, parks, warehouses, and more, the GSC3518HS provides a powerful outdoor announcement solution that expands security and communication.

  • High-powered 50W speaker with maximum volume of 126 dBA, ideal for coverage of expansive outdoor areas 
  • 3 microphones, AI-based background noise reduction, and intelligent text-to-speech to ensure every word is heard clearly in talk-back scenarios

Apart from these, you can find manifold other smarter features and we at Cohesive Technologies give you the best options.

Features & Benefits

  • High-powered 50W speaker with maximum volume of 126 dBA, ideal for coverage of expansive outdoor areas 
  • 3 microphones, AI-based background noise reduction, and intelligent text-to-speech to ensure every word is heard clearly in talk-back scenarios
  • Full-band and wide-band audio codec support, including Opus & G.722
  • Includes differential LINE IN and LINE OUT connections
  • Supports Airplay, ONVIF, RTSP/HTTP streaming, local audio files, and mobile app playback
  • SIP paging, multicast paging, call waiting with priority override, and more
  • One 10/100Mbps network port with PoE/PoE+/PoE++ input, and one 10/100Mbps network port with PoE/ PoE+ output
  • IP66-rated waterproof and dustproof; includes a durable stainless steel bracket suitable for harsh outdoor environments

GSC3518HS SIP/Multicast Talk-Back Horn Speaker

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