Maybe I wasn't precise enough in what I said...
I'm sure they will work together as there are quite a few tutorial videos online that demonstrate this, such as this one:
However, what I am not sure about is: will this indoor station allow me to link the intercom to the phone so that I can receive notifications and control the electric lock outside the home via the hik-connect application
By chance or not, I was unable to find a tutorial that shows how to configure this intercom system to transfer the call to the phone, AND at the same time use the indoor station WITHOUT WIFI, that is - the station was always used
KH6320-WTE1