Conexionado GOLMAR VESTA 2

I see the beta is up at https://developer.nuki.io/t/golmar-plus-intercom-system-support/4017. It also shows a wiring diagram to a Golmar intercom, but that one is not like the Golmar Vesta 2.

I guess I will be able to get the resistor to work (since I don’t have solder iron, it will be the bottom option; thanks for taking care of the ignorant ones ;-)). But still unsure on how to connect it to my intercom. Can anyone help out here?

Thanks!!