Fox is a local server located inside the building that is responsible for device management, meter reading, and building data storage. In one section there is one fox. The operator is responsible for this fox, he has access to control devices (such as utilities, cameras and intercoms). Technically, fox is a server with Linux and our Fox application.

Fox connects Kaiser and frontend applications to devices. Intercom is connected with both HTTP and Asterisk. Cameras are connected using the Owl service, which converts the RTSP stream from cameras into the WebRTC format that smartphones understand. Fox also has its own database that stores information about the devices.