The Grandstream GSC3510 is a SIP intercom speaker and microphone that expands security and communication by allowing offices, schools, hospitals, apartments and more to build powerful voice intercom solutions.

It features integrated dual-band Wi-Fi, built-in white- and blacklists to easily block unwanted calls and advanced acoustic echo cancellation. This intercom speaker can be paired with other Grandstream devices such as desktop and cordless IP phones and facility access products.