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Hello, I've installed Dahua VTH5221DW and VTO2000C intercom system for a client, unfortunately client is annoyed with the system in a few ways and I need to fix them, or the client wants the system replaced... First of all, she does not like that the monitor is ringing for 15 seconds and would...

I have a problem with intercom system I'm installing. I have a VTH5221DW connected to strong WIFI signal(close to access point) and VTO2111D-WP that is connected to the network with a cable. When I make a call from the VTO2111D-WP the call hoes thru and the monitor starts ringing, but when call...