Grandstream GSC3505 Wireless SIP Intercom Speaker

The Grandstream GSC3505 is a SIP intercom speaker built for sites where a wired network drop isn’t always the easiest option. Alongside its 1×10/100Mbps Ethernet port with PoE/PoE+, it carries integrated dual-band 802.11 a/b/g/n Wi-Fi and Bluetooth, so an installer can place it on a wall or ceiling point that a network cable doesn’t reach and still bring it onto the SIP paging system. Its 8W HD high-fidelity driver sits inside an HD acoustic chamber, sized at 215.32mm diameter by 68.7mm depth — a compact footprint next to the family’s larger fixed units. That combination of wireless connectivity and a lighter driver is what sets the GSC3505 apart within the GSC35 series.

What the GSC3505 Does in Practice

Once registered to a SIP server, the GSC3505 receives paging calls, multicast paging streams, and priority call-waiting overrides, so an announcement can interrupt whatever the speaker is currently playing. Audio runs over Opus, G.722, and G.711μ/a, covering both full-band and wide-band codecs, which keeps voice quality consistent whether the call originates from another SIP endpoint, a PBX extension, or a multicast paging group. Because the unit talks to the network over Wi-Fi as well as its Ethernet/PoE port, a technician can choose whichever connection suits the mounting location — wired PoE where a switch port is close by, or the built-in wireless radio where it isn’t — without changing how the speaker behaves on the paging system.

Where It Fits Across Saudi Facilities

In a warehouse or logistics yard, the GSC3505’s wireless option means a paging point can go up in a loading bay or a remote corner of a compound without pulling new cable runs, while multicast paging lets it join a zone alongside other GSC35-series speakers for site-wide announcements. In an office or retail fit-out, its compact 215.32mm body sits unobtrusively on a wall or ceiling, and Bluetooth support gives facilities teams a secondary way to reach it for setup or diagnostics during commissioning. Mosque annexes, majlis areas, and smaller retail units that were never wired for a paging system are exactly the kind of spaces the Wi-Fi option is built to serve.

Grandstream GSC3505 vs. the Rest of the GSC35 Family

Where the GSC3506 and GSC3506-V2 step up to a higher-output driver for higher-power fixed paging zones, the GSC3505 stays at its own 8W driver and trades some raw output for the flexibility of Wi-Fi and Bluetooth — the only member of this line-up carrying wireless radios in its specification. That makes it the better fit for a single access point or a hard-to-cable corner rather than a large open hall, where the higher-wattage siblings’ fixed PoE/PoE+ connection and greater driver power carry sound further.

Installation and What’s in the Box

The GSC3505 ships with both a metal bracket and a plastic bracket, a wiring seat, and a hang rope plate, giving an installer more than one mounting method depending on the surface. The included screw set — PM 3×50, PA 3.5×20, and M3×15 — plus a hexagonal screwdriver, plastic expansion bolts, and M3 nuts cover most wall and ceiling fixings without sourcing separate hardware, and a quick installation guide is included for on-site commissioning.

Package Contents

• GSC3505 Speaker Unit
• Metal Bracket
• Plastic Bracket
• Wiring Seat
• Hang Rope Plate
• Screw PM 3×50 × 3
• Screw PA 3.5×20 × 3
• Screw M3x15
• Hexagonal Screwdriver
• Plastic Expansion Bolt × 3
• M3 Nut × 3
• Quick Installation Guide