Transwarp signal was a type of two-way communication signal used by the Borg.

In 2376, the Borg Queen tapped into the main computer of USS Voyager using a transwarp signal. This established a real-time two-way communication between Voyager and the primary unicomplex, some half a quadrant away. (VOY: "Unimatrix Zero")

Transwarp
aperture • beaming • chamber • coil • computer • conduit • drive • factor • hub • network • probe • signal • signature • space • theory • threshold