How does it discover the camera?

It uses the ONVIF protocol to discover cameras. Most ONVIF cameras should be discovered automatically. If the automatic camera discovery fails then there is a manual override to add a camera, though this does require that the technician know the Ip address and the ports of the camera.

Note: In order to add a camera to the Gateway, it is important to ensure that the ONVIF user is enabled on the camera. Without the ONVIF user being enabled, the camera cannot be added. Please make sure that the ONVIF user is enabled on the camera for it to be visible and accessible in the Discovery tab of Gateway.