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    GSC3518HS

    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.

    • 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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    Grandstream Device Management System

    GDMS provides a FREE centralized interface to provision, manage, monitor and troubleshoot Grandstream products, including device management, account management, device configuration, firmware upgrades, device monitoring, intelligent alarm, and statistical analysis, individually or in batches of devices by site, group and model. This powerful cloud management platform adds robust security features to protect enterprise networks, including bank-grade TLS encryption from end-to-end, two-factor login authentication to protect your data security, two-way certificate verification and encryption of all device information. By offering a centralized, secure and zero-touch management for Grandstream endpoints, GDMS is ideal for enterprises, service providers and multi-site businesses as it allows them to easily deploy and manage large networks of Grandstream solutions. Visit gdms.cloud to sign up for free today!

    Android and iOS mobile users can access the GDMS mobile app from any device by downloading for free through the app store, or get it on google play.

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    Product Comparison

    NameGSC3518HS
    SPECS
    SPEAKER 50W high-fidelity speaker, Frequency: 270Hz-13.2KHz, Sensitivity: Up to 109 dBA at 1m/1W(1 kHz)
    MICROPHONE 3 Built-in MIC with 26.25 ft.(8m) pickup distance, AI noise reduction, and intelligent TTS support
    AUXILIARY PORT Two 2-pin Switch-in input ports, one 2-pin Switch-out output port, one differential line in port, one differential line out port, two network ports, one DC24V-48V port, reset
    NETWORK INTERFACES 1x 10/100 Mbps port with integrated PoE/PoE+/PoE++ input and 1x 10/100 Mbps port with integrated PoE/PoE+ output
    POE PoE/PoE+/PoE++
    TELEPHONY FEATURES SIP Paging, Multicast Paging, Group Paging, PTT, call-waiting with priority override
    SECURITY User and administrator level passwords, 256-bit AES encrypted configuration file, TLS, SRTP, HTTPS, 802.1x media access control, secure boot

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