• The intelligent doorbell, Chui, features facial recognition technology.

  • Control4 touch screens can function as intercom stations.

  • Elan offers a variety of intercom solutions.

  • One of the most eye-catching of all smart doorbells comes from Fibaro.

  • RTI

  • The Yale Door Viewer replaces the common peephole with a camera, video display, two-way audio, Wi-Fi and home automation via Z-Wave or ZigBee.