I’m having the same issues as everyone else in here, ring notifications don’t push/ring constantly unless the DMSS app is open and phone unlocked, which is obviously not ever the case day to day when someone rings the bell. \
I’ve tried reinstalling the app and playing around with settings, deleting the device and re-adding etc, all to no avail.
I contacted Dahua directly to see if there’s a solution and was very disappointed with their response, basically all they said was they would pass my feedback onto the relevant team for future updates.
Another issue I have which again makes this product completely useless, whenever I’m not at home and connected to the same wifi as the device, I’ll get a notification that someone is at the door and has pressed the bell, IF I happen to catch the single notification, I click on it to open the app and answer the call, and every single time I get ‘Connection failed’ and cannot see who it is nor answer the call. My CCTV is online and loads fine so it’s definitely not a case of my wifi being down etc, just the VTO being a useless piece of junk.
I’ve decided to cut my losses on the ~$250 I spent on it and spend another $400 for a POE Ring doorbell Elite, which is disappointing not only because I wasted money on the Dahua VTO, but because I specifically purchased it as I wanted to keep my cameras/doorbell to a single app