The Grandstream GSC3518HS SIP Horn Speaker is a powerful SIP and multicast talk‑back solution engineered to deliver crystal‑clear HD audio through its high‑fidelity 50‑Watt speaker. Built with an IP66‑rated enclosure, it withstands harsh outdoor conditions, making it ideal for school campuses, parks, warehouses, hospitals, large offices, and public spaces. Equipped with three integrated microphones, AI‑powered noise reduction, and intelligent text‑to‑speech, the GSC3518HS ensures commands and announcements are always heard clearly. It also supports PoE++ input and PoE+ output for efficient device cascading. With its modern industrial design and full feature set, this SIP horn speaker provides a reliable communication, intercom, and security announcement solution for any environment.
Core Features:
- High-powered 50W speaker with maximum volume up to 126dBA for expansive coverage
- 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
- Supports SIP paging, multicast paging, call waiting with priority override, and more
- 1x 10/100Mbps network port with PoE/PoE+/PoE++ input, and 1x 10/100Mbps network port with PoE/ PoE+ output
- 3 microphones, AI noise reduction, intelligent text-to-speech (TTS) support
- IP66-rated waterproof and dustproof; made with durable PC + ABS material and a
stainless-steel mounting bracket to support harsh outdoor environments
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