The Belltower

(And lo, there is a tower. It comes equipped with four times as many ansibles as they actually need to link up the existing array of worlds; that way there'll be spares for later. The ansible room, two floors below ground, and the meeting room on the floor above it both have cameras and mics and Jarvis-style projection equipment for Jane, and the main common room on the ground floor has a computer she can access.)