Siedel has been around for a long time. Not designed for the average home, more suited to "modern design " and fits very well with the aesthetic of these types of homes. Many clients will balk at the price mind you.

Comelit is another brand of door intercom, not discussed around here. They offer a few different designs for residential, that are not a couple of things stuck behind a brushed chrome plate.

https://www.comelitgroup.com