Hello everyone I am digging this up because I need some planning support on this topic. In my case, it is about a three-family house. Of the three doorbells/intercoms with door opener, one should be connected to a FritzBox on the first floor. So far no problem. The doorbells/intercoms with door opener on the ground floor and second floor should be connected to another FritzBox. This box is a 7390. Can you operate two doorbells separately with this box? I have already browsed the Auerswald website but I found the descriptions of the modules a bit sparse. Is there a module with which I can control something like this? If yes, which one? Or do you need three separate modules for this? Thanks in advance