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I'm trying to connect my VTO Villa doorbell to my NVR. I have already got the doorbell to work and I've completed all the stuff needed for remote viewing when I'm out of the house from my phone. My question is that when I try to add my VTO to the NVR so I can get 24 hour surveillance from my...

I'm looking into getting a Dahua video doorbell VTO2111D. I would like to know if I can hook this up to my existing Dahua NVR that I already have and if I can access all the features such as remote answering from my phone and surveillance at the same time. I've already set up my cameras on GDMSS...

Hi guys I just joined this forum. I have had 2 Dahua systems in my house for 3 years with 4 cameras on each system. I added 2 more but one of my hdw4421 cameras has just stopped working. There was no exposure to outside elements and I tried other cameras on the same place where they worked...