Video intercom solution

Looking for an solution with HA to have a (video) intercom for in the house.
I want to use HA as an intercom with multiple screens that are placed on different floors in a house.

If I cook food in the evening for my children I always need to shout through walls and 2 storeys once dinner is ready.

Any projects or products supporting this use case or any other ideas on this?


This is a start, but I would like to use the camera and microphone from the tablet on the wall. (This is the screen I’m talking about in my original post) HA is running on a raspberry Pi.