
GSC3510 SIP Speaker
3 directional mics with MMAD & microphone beamforming array, One 10/100Mbps network port
View productCohesive Technologies — authorised Grandstream distributor in India
70W Column and 40W Wall SIP Speakers with Wi-Fi 6
The Grandstream GSC3518CS and GSC3518WS are smart SIP speakers that combine communication, public paging and emergency broadcasting in one IP audio system. The GSC3518CS is a 70-Watt IP66 column speaker with SFP fiber for outdoor campuses, perimeter zones and large commercial complexes. The GSC3518WS is a 40-Watt wall speaker for classrooms, office hallways and retail spaces. Both add dual-band Wi-Fi 6, Bluetooth 5.4, text-to-speech and AI noise cancellation.
Choose the GSC3518CS for wide outdoor coverage or the GSC3518WS for indoor zones, with the same smart audio platform on both.
The GSC3518HS is a 50W horn speaker built for long-throw projection, with up to 126 dB SPL and PoE output for daisy-chained wiring.

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View productAnswers to common questions about the GSC3518CS/GSC3518WS — buying it in India, documentation and support.
The Grandstream GSC3518CS and GSC3518WS are smart SIP speakers that combine communication, public paging and emergency broadcasting in one IP audio system. The GSC3518CS is a 70-Watt IP66 column speaker with SFP fiber for outdoor campuses, perimeter zones and large commercial complexes.
Key features of the GSC3518CS/GSC3518WS include: 70W Column and 40W Wall Speakers; Wi-Fi 6 and Bluetooth 5.4; AI Noise Cancellation; SIP, Multicast and Text-to-Speech; Audio Equalizer; IP66 and SFP on GSC3518CS.
Cohesive Technologies is the authorised distributor of Grandstream Networks in India and supplies the GSC3518CS/GSC3518WS across the country. Call +91 120 4830000, WhatsApp +91 7290000544 or email info@grandstreamindia.com for a quote.
You can download the official GSC3518CS/GSC3518WS datasheet (PDF). It lists the full technical specifications.
Yes. Cohesive Technologies offers consultation, installation, configuration, technical support and extended warranty for Grandstream products across India. See our support services.
They are smart SIP speakers in the GSC3518 Series. The GSC3518CS is a 70-Watt column speaker and the GSC3518WS is a 40-Watt wall speaker, both with Wi-Fi 6, Bluetooth 5.4, text-to-speech and AI noise cancellation.
The GSC3518CS is the higher-power IP66 model, with an SFP fiber port, a second network port and wall or pole mounting. The GSC3518WS is a wall-mount indoor model that adds a TF card slot, external speaker output, USB-C port for a microphone, line out and audio feedback cancellation.
The GSC3518CS can. It is rated IP66, with a waterproof cable gland included, and operates from -30 °C to 60 °C. The GSC3518WS has no ingress protection rating and operates from -10 °C to 55 °C, so it is intended for indoor spaces.
Both accept IEEE 802.3bt Class 8 PoE++ input, with up to 71.3 W input power. The GSC3518CS can also run on 48V DC 2A. The GSC3518WS can run on 24V DC 3A, or 24V DC 4A when an external speaker is connected.
The GSC3518HS is a 50W horn speaker built for long-throw projection, with up to 126 dB SPL and PoE output for daisy-chained wiring. The GSC3518CS and GSC3518WS offer a wider 100 Hz to 20 kHz frequency range and add Wi-Fi 6, Bluetooth 5.4 and an audio equalizer.
Yes. GSC3518 Series speakers can work as either a primary zone manager or a managed endpoint, providing synchronised audio across designated zones.
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