Grandstream-GSC3518HS

Grandstream GSC3518HS 50W Horn Speaker, PoE

P30P SIP Pendant Speaker, 30W HD Sound, PoE

  • 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

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Description

Grandstream GSC3518HS SIP Talk-Back Horn Speaker

The Grandstream GSC3518HS is a high-power SIP talk-back horn speaker built for outdoor paging, intercom, and emergency communication. Designed for demanding environments, it delivers clear HD audio, a powerful 50W output, and IP66-rated protection to ensure reliable performance in all weather conditions.

Perfect for schools, warehouses, hospitals, public spaces, and large campuses, the GSC3518HS enables organisations to deploy a scalable IP-based PA and intercom system. It supports both SIP and multicast audio, making it easy to integrate with IP phone systems and existing network infrastructure.

Key Features

High-Power Outdoor Audio – The integrated 50W horn speaker delivers loud, intelligible audio across wide outdoor areas. Ideal for environments with high ambient noise.

Two-Way Talk-Back Communication – Built-in 3 microphones enable clear full-duplex talk-back, allowing real-time communication between users and control points.

AI Noise Reduction Technology – Advanced AI-based background noise suppression improves speech clarity, ensuring messages are heard clearly even in noisy locations.

Intelligent Text-to-Speech – Supports automated voice announcements, helping streamline alerts, notifications, and scheduled messaging.

SIP & Multicast Compatibility – Works seamlessly with SIP VoIP systems and multicast paging platforms, offering flexible deployment options.

Rugged Outdoor Design – With an IP66 rating, the GSC3518HS is protected against dust, rain, and harsh environmental conditions.

PoE++ Powered with Cascading Support – Supports PoE++ input and PoE+ output, enabling easy installation and device daisy-chaining to reduce cabling.

  • 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

Applications

The GSC3518HS SIP horn speaker is ideal for:

  • School playgrounds and campus-wide paging
  • Warehouse and industrial communication
  • Hospital and healthcare announcements
  • Public parks and open outdoor areas
  • Transport hubs and large facilities
  • Security intercom and emergency alert systems
  • Commercial buildings and business parks
Grandstream GSC3518HS Datasheet

Accessories

Downloads

Grandstream GSC3518HS Datasheet

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