I use a dumb doorbell which I hook up to my smartthings so I get a notification on my phone then I can use my hikvision camera to talk. No subs, just a capital outlay
I've upgraded the camera to U5.5.150 build 200911
browser firefox on the mac
No particular code - just "device error" on the camera and "invalid operation" on the nvr browser
Since I upgraded my strobe light/ audio warning turret its firmware I cannot activate the audio or light on the camera (I could previously) - when I tick the boxes for line crossing it just says I can't do it. (I'm in the web browser for the NVR, not the camera but I can't do it in the camera...