The relay station is highly automated - it can automatically reply to docking requests and send out warning messages to the spaceships that go faster than the speed limit.
The relay station originally was constructed over 200 years ago by attaching the hulls of scrapped long distance spaceships together, and celebrated its 200 anniversary when Marika Kato was still a child. It only did flight controls for ships that were docking with it before and during the War of Independence, slowly evolving to controlling all ships within the inner planets after the war. During the War of Independence, the relay station was used as a resupply point for the Colony Federation's fleet and privateers. It did not use automated messages but voice communication for flight control during this period .