Teleport control

A teleport control was a device added to the Doctor's TARDIS by the Celestial Intervention Agency. Installed at the same time they gave the Second Doctor's TARDIS a "complete overhaul" and a Stattenheim remote control as a reward for his good performance on their mission to defeat the Players in Napoleonic France, it was an addition the Doctor very much protested. (PROSE: World Game) It gave the CIA "dual control" over the TARDIS. When pointing out the new addition to Jamie, the Doctor shouted as if to his new CIA masters, "You'd think I'd never flown a TARDIS solo before!" He promised Jamie that he would complain when their mission to talk to Dastari was over. (TV: The Two Doctors)