Hi all, seriously need some help with my Dahua setup/configuration. I've installed 2 camera's behind the Dahua NVR. Works fine. But I've tried to add a VTO/video doorbell to the setup which I have seriously failed at. After a couple of days and tries I've managed to add the VTO to the DMSS app. I'm also able to enter the camera via the VTOwebpage (IP address). Sadly though, the doorbell part I can't seem to manage. If I press the ring button it does say "please wait, calling". But nothing happens anywhere else. So no ringing of any sort on phone or laptop. I connected the VTO directly to the router with UTP cable. What am I missing in order to have it work as not just a camera, but as the intended doorbell. Thank sin advance for any help!!