GSC3516

The Grandstream GSC3516 is a professional SIP/Multicast Talk-Back Speaker designed to provide reliable two-way voice communication, intercom, paging, and security solutions for offices, schools, hospitals, apartment buildings, retail stores, and other commercial environments.

The GSC3516 combines a 15W high-fidelity HD speaker with 3 directional microphones featuring Multichannel Microphone Array Design (MMAD) and beamforming, along with an omnidirectional auxiliary microphone. This provides a microphone pickup distance of up to 4.2 meters and enables clear two-way communication with advanced acoustic echo cancellation.

The device supports SIP, multicast paging, group paging, Push-to-Talk (PTT), and call waiting with priority override. It also features integrated dual-band Wi-Fi and Bluetooth, providing flexible wireless connectivity alongside its PoE/PoE+ Ethernet interface.

Key Features:

• SIP/Multicast Talk-Back Speaker with 2-way voice functionality.

• 15W high-fidelity HD speaker.

• 3 × directional microphones with MMAD and beamforming.

• 1 × omnidirectional auxiliary microphone.

• Microphone pickup distance up to 4.2 meters.

• Full-duplex speakerphone with HD acoustic chamber.

• Advanced acoustic echo cancellation.

• Supports full-band and wide-band audio codecs including Opus and G.722.

• Integrated dual-band 2.4GHz and 5GHz Wi-Fi.

• Integrated Bluetooth.

• 1 × 10/100Mbps Ethernet port with PoE/PoE+.

• Supports SIP Paging and Multicast Paging.

• Supports Group Paging and Push-to-Talk (PTT).

• Call waiting with priority override.

• 2-pin multi-purpose input for peripherals such as call buttons.

• Supports advanced voice features including AEC, AGC, noise suppression, packet loss concealment, and adaptive jitter buffering.

• Supports TLS and SRTP for secure communications.

• Supports VLAN and QoS for optimized voice traffic.

• Supports centralized provisioning and management through GDMS/TR-069.

• Supports whitelist, blacklist, and greylist functions for call control.

• Modern, cleanable design suitable for professional environments.

Applications:

• Corporate offices and business facilities.

• Schools and educational institutions.

• Hospitals and healthcare facilities.

• Apartment buildings and residential complexes.

• Retail stores and commercial spaces.

• Security and reception areas.

• Public address and paging systems.

• SIP-based intercom deployments.

• Emergency and two-way communication systems.

The Grandstream GSC3516 provides a powerful combination of HD two-way audio, SIP intercom, multicast paging, Wi-Fi, Bluetooth, and PoE/PoE+ connectivity, making it an ideal solution for modern communication, security, and facility management systems.