HADA can handle up to 5 Doorbird Video Doorbells with call routing so you can accept calls on multiple panels. This feature requires the purchase of a third party module to operate.
You can get the module from Control Works at: http://www.controlworks.com

The Name will show when a call is received on the user panel. The Relays (if enabled) will show one the buttons once the call is accepted. You can test the relay setup with the trigger buttons and toggle the camera light for testing.

Note: You must enable at least 1 panel to accept Doorbird Calls on the Touch Screens Page.