On June 26, 1968, the FCC ruled in the Carterfone case that AT&T's rules prohibiting private two-way radio connections to a telephone network were illegal. AT&T quickly sought a reversal of the ruling, and when the FCC denied the request, AT&T brought suit against the FCC in the United States courts of appeals. The FCC's decision was upheld, thus creating a new industry: privately (non-Bell) manufactured devices could be connected to the telephone network as long as the manufacturer met interface standards.