This robust SIP intercom offers 2-way audio features with a high-fidelity 8W HD speaker and 3 directional microphones in a multi-channel microphone array design (MMAD) with a recording distance of 4.2 meters. The GSC3510 supports a wide range of peripherals including Bluetooth devices, built-in whitelist and blacklists for easy blocking of unwanted calls, integrated dual-band Wi-Fi and advanced acoustic echo cancellation. By pairing the GSC3510 with other Grandstream devices, including desktop and cordless IP phones, as well as the GDS Series Facility Access products, users can easily create a state-of-the-art security and voice intercom solution. Thanks to its modern industrial design and rich functions, the GSC3510 is the ideal intercom speaker/microphone for any setting.

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