 It served as the regulator for the independent companies until April 26, 1994, when a decision by the Supreme Court of Canada in the case Téléphone Guevremont Inc. v. Quebec (Régie des télécommunications), [1994] 1 S.C.R.878
transferred Canada's provincially regulated telephone companies to federal jurisdiction, meaning that they would be regulated by the Canadian Radio-television and Telecommunications Commission.Grindlay, Thomas.