The Grandstream GSC3505 is a 1-way public address SIP speaker designed for clear and efficient audio broadcasting in various environments such as offices, schools, hospitals, and residential complexes. It integrates seamlessly with Grandstream’s ecosystem, providing a comprehensive solution for public address and paging needs.
🔊 Audio Features
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Speaker: 8W high-fidelity HD speaker with an acoustic chamber for clear audio output.
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Audio Codecs Supported: G.711μ/a, G.722 (wide-band), G.726-32, iLBC, Opus, G.729A/B.
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Audio Enhancements: Supports full-band and wide-band audio codecs including Opus & G.722.
🌐 Network & Connectivity
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Wi-Fi: Integrated dual-band 802.11 a/b/g/n Wi-Fi for flexible wireless connectivity.
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Bluetooth: Built-in Bluetooth 4.0 + EDR for connecting to various peripherals.
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Ethernet: One 10/100 Mbps network port with Power over Ethernet (PoE/PoE+) support for simplified installation.
📞 Telephony & Paging Features
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SIP Support: Compliant with SIP RFC3261 standard.
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Paging Capabilities: Supports SIP paging, multicast paging, and call-waiting with priority override.
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Protocols/Standards: TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS, DHCP, PPPoE, SSH, TFTP, NTP, STUN, LLDP-MED, TR-069, 802.1x, TLS, SRTP, IPv6, OpenVPN®.
🔒 Security Features
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Access Control: Built-in whitelist and blacklist functionalities to manage and block unwanted calls.
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Encryption & Authentication:
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256-bit AES encrypted configuration files.
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TLS and SRTP encryption technologies.
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MD5 and MD5-sess based authentication.
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802.1x media access control.
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⚙️ Additional Features
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Quality of Service (QoS): Supports Layer 2 QoS (802.1Q, 802.1p) and Layer 3 QoS (ToS, DiffServ, MPLS).
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Provisioning & Management: Firmware upgrade via TFTP/HTTP/HTTPS or local HTTP upload; mass provisioning using AES encrypted XML configuration files.
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Multi-language Support: English, French, German, Portuguese, Russian, Simplified Chinese, Spanish.
📐 Physical Specifications
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Dimensions: 215.32 mm (diameter) × 68.7 mm (depth).
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Weight: Approximately 0.8 kg.
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Operating Temperature: 0°C to 40°C.
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Storage Temperature: -10°C to 60°C.
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Humidity: 10% to 90% non-condensing.
