The Grandstream GSC3516 SIP Intercom Speaker is a high-performance SIP/Multicast talk-back intercom speaker with built-in microphone array , designed for two-way voice communication, paging, and facility-wide communication systems in commercial and enterprise environments. It delivers HD audio,…
£175.00
The Grandstream GSC3516 SIP Intercom Speaker is a high-performance SIP/Multicast talk-back intercom speaker with built-in microphone array, designed for two-way voice communication, paging, and facility-wide communication systems in commercial and enterprise environments. It delivers HD audio, intelligent microphone beamforming, and full-duplex communication, making it one of the most advanced speakers in the GSC intercom range.
Unlike basic paging speakers, the GSC3516 supports both speaker output and multi-microphone voice pickup, enabling real-time conversation between users and remote endpoints such as SIP phones, PBX systems, and control stations.
The GSC3516 is designed for true two-way SIP communication, meaning it can both broadcast audio and capture voice replies clearly using its microphone array.
Its 15W HD speaker and beamforming microphones allow clear communication over moderate distances, while built-in filtering features (whitelists/blacklists) help prevent unwanted calls or paging interruptions.
With support for Wi-Fi, Bluetooth, PoE, and SIP multicast paging, it can be deployed flexibly across modern IP-based communication infrastructures.
Next Day Delivery
For UK orders received before 1pm Monday to Friday, we operate a next business day delivery service, subject to availability. We use next day services from the leading delivery companies.
Specific Time Delivery
If you need an item urgently, or delivered at a specific time, please contact us.
Delivery Methods
We use several leading delivery companies. The majority of our deliveries are made by DPD, including most international orders.
Shipping prices are calculated during the checkout process. We deliver to almost every country. For international delivery services, we use DHL, a high quality, fast delivery service. Prices are provided based on the weight of the order; this is calculated when you reach the checkout.
For full shipping information please visit our shipping page.
The Grandstream GSC3516 SIP Intercom Speaker is a high-performance SIP/Multicast talk-back intercom speaker with built-in microphone array, designed for two-way voice communication, paging, and facility-wide communication systems in commercial and enterprise environments. It delivers HD audio, intelligent microphone beamforming, and full-duplex communication, making it one of the most advanced speakers in the GSC intercom range.
Unlike basic paging speakers, the GSC3516 supports both speaker output and multi-microphone voice pickup, enabling real-time conversation between users and remote endpoints such as SIP phones, PBX systems, and control stations.
The GSC3516 is designed for true two-way SIP communication, meaning it can both broadcast audio and capture voice replies clearly using its microphone array.
Its 15W HD speaker and beamforming microphones allow clear communication over moderate distances, while built-in filtering features (whitelists/blacklists) help prevent unwanted calls or paging interruptions.
With support for Wi-Fi, Bluetooth, PoE, and SIP multicast paging, it can be deployed flexibly across modern IP-based communication infrastructures.