Hi to all. I’m in the same case.
At first of all, to change the intercom by another one will not work because Golmar T-840 is a 4 wires, digital, programmable system that needs to be replaced by another compatible system (like Golmar T-590VD or 790VD), too expensives and, in this moment, without opener compatibilty. So the problem will be the same.
Another thing is the way that this system needs to work. First needs to receive the call. Then you can push the opening button to open the door (so I imagine that the only working operation mode possible should be “Ring to Open”)
With these premises, is there anyway to configure opener with this system?