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The GSC3516 is a SIP/Multicast Talk-Back Speaker that allows offices, schools, hospitals, apartments and more to build powerful voice intercom solutions that expand security and communication.

The GSC3500 Series allows offices, schools, hospitals, apartments and more to build powerful voice intercom solutions that expand security and communication. These devices offer 1 and 2-way voice functionality with HD speakers and multi-directional microphones with a 4.2 meter voice pickup distance.

The GSC3500 Series supports a wide-range of peripherals including Bluetooth devices, offers built-in whitelists, blacklists and greylists to easily block unwanted calls, provides integrated dual-band Wi-Fi and includes advanced acoustic echo cancellation.

By pairing the GSC device with other Grandstream products, such as our desktop and cordless IP phones, IP PBXs, Wi-Fi APs and facility access systems, users can easily build a customized communication and security solution. Thanks to its modern industrial design and rich features, the GSC3500 Series are the ideal intercom speaker/microphone and paging devices for any indoor environment.

  Full-duplex speakerphone with HD acoustic chamber, advanced acoustic echo cancellation
  3 directional mics with MMAD & microphone beamforming array and 1 omnidirectional
  auxiliary microphone
  Full-band and wide-band audio codec support including Opus & G.722
  Integrated dual-band 802.11 a/b/g/n/ac Wi-Fi and Bluetooth
  One 10/100Mbps network port with PoE/PoE+
  2-pin multi-purpose input to support peripherals including call buttons


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® Network Interfaces One 10/100 Mbps port with integrated PoE/PoE+ Operating System Linux Bluetooth Yes, integrated. Bluetooth 2.1+Enhanced Data Rate (EDR)+ BT4.2 Wi-Fi Yes, dual-band 2.4 & 5GHz with 802.11 a/b/g/n/ac Auxiliary Port One 2-pin multi-purpose input port, Reset 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, AEC, PLC, AJB, AGC, ANS Telephony Features SIP Paging, Multicast Paging, Group Paging, PTT, Call-waiting with priority override, Bluetooth SCO call HD Audio Yes, HD speakerphone with support for full band audio with 48KHz voice sampling frequency Speaker 15W high-fidelity HD speaker Frequency: 110Hz-20000 Hz Sensitivity: Up to 90 dBA at 1W power at 0.5 meter Microphone 3 directional microphones with beam-forming capability and 1 omnidirectional auxiliary microphone that offer a 4.2 meter pickup distance QoS Layer 2 QoS (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS Security User and administrator level passwords, MD5 and MD5-sess based authentication, 256-bit AES encrypted configuration file, TLS, SRTP, HTTPS, 802.1x media access control,secure boot Multi-language English, German, French, Spanish, Portuguese, Russian & Chinese Upgrade/Provisioning Firmware upgrade via TFTP / HTTP / HTTPS or local HTTP upload, mass provisioning using GDMS/TR069 or AES encrypted XML configuration file Power & Green Energy Efficiency Integrated PoE* 802.3af Class 3, PoE+ 802.3at Class 4 Temperature and Humidity Operation: 0°C to 45°C Storage: -10°C to 60°C, Humidity: 10% to 90% Non-condensing Package Content GSC3516 SIP/Multicast Talk-Back Speaker, mounting kits, quick installation guide Physical Unit Dimensions: 257mm (diameter) x 68.5mm (depth) Unit Weight: 0.92kg , Box Weight: 1.75kg Compliance FCC: FCC 47 CFR Part 15 Subpart B;FCC 47 CFR Part 15 Subpart C;FCC 47 CFR Part 15 Subpart E. IC: ICES-003;RSS-247 Issue 2;RSS-Gen Issue 5;RSS-102 Issue 5. CE: ETSI EN 300 328;ETSI EN 301 893;ETSI EN 300 440;ETSI EN 301 489-1;ETSI EN 301 489-3;ETSI EN 301 489-17;EN 55032;EN 55035;EN IEC 61000-3-2;EN 61000-3- 3;EN IEC 62311;EN IEC 62368-1. UKCA: ETSI EN 300 328;ETSI EN 301 893;ETSI EN 300 440;ETSI EN 301 489-1;ETSI EN 301 489-3;ETSI EN 301 489-17;BS EN 55032;BS EN 55035;BS EN IEC 61000-3- 2;BS EN 61000-3-3;BS EN IEC 62311;BS EN IEC 62368-1. RCM: AS/NZS CISPR 32;AS/NZS 62368.1;AS/NZS 4268;AS/NZS 2772.2.

Barcode # 6947273704287
Brand Grandstream
Shipping Weight 2.0000kg
Shipping Width 0.170m
Shipping Height 0.330m
Shipping Length 0.060m
Shipping Cubic 0.003366000m3

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Grandstream GSC3516 SIP/Multicast Talk-Back Speaker

Model # GSC3516

  • SKU: GSC3516

SAVE $161.00 (43%)
In Stock

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