If you want perfection, then an insulated coffee pot you bring to the table with empty cups, little spoons, milk/cream and sugar is the best solution. I have an insulated French press, which is not the same thing, since the coffee that sits in there gets a little bitter, because of the ground beans. My parents just bring the machine's glass carafe to the table, since they drink quickly and don't serve themselves again.
This is why the Brits invented the tea cozy