For now it's just the theater and kitchen. But I do intend to drop lines into all of the bedrooms and maybe another into the basement. There are wireless versions to make the install easier. I made the mistake of not wiring for an intercom before the basement of finished, but luckily the unfinished hot water heater room is right below the kitchen, has a shared wall with the theater and the basement, and has a conduit running into the attic. That should take care of all the rooms I need.