Grandstream GSC3518HS SIP/Multicast Talk-Back Horn Speaker

Product Code:
GSC3518HS
299,00 €
(Includes VAT 24%)
Sales price without VAT:
241,13 €
Available
Next delivery date: 24/09/2026

Grandstream GSC3518HS SIP/Multicast Talk-Back Horn Speaker

Shipping cost calculation:
Quantity
Product Code (Manufacturer):
6947273705819
Manufacturer:
Warranty:
24 Months
Description
Characteristics
Downloads
Description

CAUTION!!! Package doesn't include power supply!!!

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. This high-powered SIP speaker includes 3 microphones, AI-based background noise reduction, and intelligent text-to-speech to ensure every word is heard clearly in talk-back scenarios. The GSC3518HS supports PoE++ input and PoE+ output, catering to device cascading scenarios. Thanks to its' modern industrial design and extensive features, the GSC3518HS is an ideal SIP talk-back horn speaker for any setting, allowing users to easily build a powerful intercom, security, and public-address announcement solution.

• 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

 

 

Characteristics
Specifications
Protocols/Standards SIP RFC3261, TCP/IP/UDP, RTP/RTCP, RTCP-XR, HTTP/HTTPS, ARP, ICMP, DNS (A record, SRV, NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, LLDP-MED, SIMPLE, LDAP, TR-069, 802.1x, TLS, SRTP, IPv6, OpenVPN®
Voice Codecs and Capabilities G.711µ/a, G.722 (wide-band), G.726-32, iLBC, Opus, G.723, G.729A/B, in-band and out-ofband DTMF (In audio, RFC2833, SIP INFO), VAD, CNG, PLC, AJB, AGC, ANS
Telephony Features SIP Paging, Multicast Paging, Group Paging, Push-to-Talk (PTT), call-waiting with priority
override
QoS Layer 2 QoS (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS
Security User and administrator level passwords, 256-bit AES encrypted configuration file, TLS, SRTP, HTTPS, 802.1x media access control, secure boot
Multi-language English, German, French, Spanish, Portuguese, Russian, and Chinese
Upgrade/Provisioning Firmware upgrade via TFTP, HTTP, HTTPS, or local HTTP upload, mass provisioning using
GDMS, TR069, or AES encrypted XML configuration file
Hardware
Network Interfaces 1x 10/100 Mbps port with integrated PoE/PoE+/PoE++ input
1x 10/100 Mbps port with integrated PoE/PoE+ output
Auxiliary Port 2x 2-pin Switch-in input ports, 1x 2-pin Switch-out output port, 1x differential line in port, 1x
differential line out port, 2x network ports, 1x DC24V-48V port, reset
Speaker 50W high-fidelity speaker
Frequency: 270Hz-13.2KHz
Sensitivity: Up to 109 dBA at 1m/1W(1 kHz)
Max SPL Up to 126dBA
Microphone 3 Built-in microphones with 26.25 feet (8m) pickup distance
Power & Green Energy Efficiency PoE++ Input, complies with IEEE 802.3bt standard, Class 8, Max power 71 Watt, Max Input
voltage 57V;
PoE+ Output, complies with IEEE 802.3at standard, Class 4, Max power 25 Watt, DC IN
24V/4A - 48V/2A
General
Ingress Protection IP66-rated, waterproof cable gland
Installation Type Wall Mount, Pole Mount
Temperature and Humidity Operation: -30°C to +60°C, Storage: -40°C to +60°C
Humidity: 10% to 90% Non-condensing
Package Content GSC3518HS Horn Speaker, mounting kit, quick installation guide
Physical Unit Dimensions: 324.6mm(L) x 285.3mm(W) x 204.3mm(H)
Unit Weight: 2.870kg (with mounting kits)
Package Weight: 3.913kg
Material PC + ABS (Polycarbonate-Acrylonitrile Butadiene Styrene), Aluminum back cover,
Stainless steel mounting bracket
Compliance FCC, IC, CE, RCM

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