on thursday 18 april 1996, a new police box based on the mackenzie trench design was unveiled outside the earl's court tube station in london, equipped with cctv cameras and a telephone to contact police. the telephone ceased to function in april 2000 when london's telephone numbers were changed, but the box remained, despite the fact that funding for its upkeep and maintenance had long since been exhausted. in march 2005, the metropolitan police resumed funding the refurbishment and maintenance of the box.