Grandstream Gsc3505 Sip Speaker

The Grandstream GSC3505 is a professional 1-way SIP public address speaker designed for announcements, paging, and building-wide communication systems. It delivers clear HD audio and integrates easily into VoIP and security environments such as offices, schools, hospitals, and estates. Specifications • 1-way SIP public address speaker (no microphone) • High-quality 8W HD acoustic speaker • SIP paging and multicast paging support • Wi-Fi (dual-band 2.4/5 GHz) connectivity • Bluetooth support for audio pairing • 1 × Ethernet port (10/100 Mbps) • Power over Ethernet (PoE / PoE+) support • HD audio codecs: Opus, G.722 and others • Call waiting with priority override support • Built-in whitelist/blacklist for access control • Advanced echo cancellation and audio processing • Compact industrial design for wall/ceiling installation