In 2370, a T'Lani cruiser generated a broadband inversion field to prevent Benjamin Sisko and Jadzia Dax from calling Starfleet for help. (DS9: "Armageddon Game") In 2371, the crew of the USS Voyager encountered an inversion field while investigating a distortion ring in the Delta Quadrant. The field eventually enveloped Voyager when Lieutenant Tuvok flew the ship through the ring. (VOY: "Twisted")