Grandstream 1-Way SIP Intercom Speaker.x
Features
The Grandstream GSC3505 is a 1-way public address SIP speaker that allows offices, schools, hospitals, apartments and more to build powerful public address announcement solutions that expands security and communication. This robust SIP speaker offers crystal clear HD audio functionality with a high-fidelity 8W HD speaker. The GSC3505 supports Bluetooth devices, a built-in whitelist and blacklists to easily block unwanted calls, SIP and multicast paging, and integrated dual-band WiFi. By pairing the GSC3505 with other Grandstream devices, including desktop and cordless IP phones as well as the GDS series of Facility Access products, users can easily sculpt a state-of-the-art security and PA announcement solution. Thanks to its modern industrial design and rich features, the GSC3505 is the ideal SIP speaker for any setting.
- Speaker with HD acoustic chamber
- Features SIP paging, multicast paging, call-waiting with priority override
- Full-band and wide-band audio codec support Integrated dual-band 802.11 a/b/g/n WiFi
- Integrated Bluetooth support
- One 10/100 Mbps network port with PoE/PoE+
- Web-UI access for control and configurations
Specifications
Technical Specifications
| Manufacturer's Product Code | GSC3505 |
|---|---|
| Protocols/Standards | SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS (A record, SRV, NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, LLDP-MED, TR-069, 802.1x, TLS, SRTP, IPv6, OpenVPN |
| Network Interfaces | One 10/100 Mbps port with integrated PoE/PoE+ |
| Bluetooth | Yes, integrated. Bluetooth 4.0 + EDR |
| Wi-Fi | Yes, dual-band 2.4 & 5GHz with 802.11 a/b/g/n, WMM |
| Voice Codecs and Capabilities | G.711µ/a, G.722 (wide-band), G.726-32, iLBC, Opus, G.729A/B in-band and out-of- band DTMF (In audio, RFC2833, SIP INFO), VAD, CNG, AEC, PLC, AJB, AGC, ANS |
| Telephony Features | SIP Paging, Multicast Paging, call-waiting with priority override |
| HD Audio | Yes, HD speaker with support for full-band audio |
| Speaker | 8W high-fidelity HD speaker |
| 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 |
| Upgrade/Provisioning | Firmware upgrade via TFTP / HTTP / HTTPS or local HTTP upload, mass provisioning using AES encrypted XML configuration file |
| Power & Green Energy Efficiency | Integrated PoE* 802.3af Class 3, PoE+ 802.3at Class 4 |
| Package Content | GSC3505 SIP Speaker, PoE injector, mounting kits, quick installation guide, brochure, GPL license |
| Brand | Grandstream |
|---|---|
| Product Type | UC & Video Conferencing > UC Accessories |
| Weight | 0.5 kg |
Shipping Information
- Free NZ-wide shipping on orders over $299
- Standard delivery 2–5 business days
- Rural delivery may take an additional 1–2 days
- Same-day dispatch for orders placed before 2pm (weekdays)
Returns Policy
- 7-day returns on unused items in original packaging
- Faulty or damaged products covered under warranty
- Contact our support team to initiate a return






