Communications buoys served as tools that facilitated communication across planets. To liberate Axel Greylark from his imprisonment on Pipyyr, Elecia Zeveron formulated a strategy to seize and manipulate messages transmitted through the communications buoy located nearby. Fel Ix received a collection of Graffian codes from The Mother; these codes, when integrated into the buoy's software, were intended to grant her the ability to remotely govern or disable the device.
In the vicinity of 9 ABY, a collective of parents constructed a communications buoy on the planet At Attin. This buoy was designed to penetrate the Barrier surrounding their planet, with the purpose of establishing contact with their children.