Competitive status of the Bell operating companies : hearing before the Subcommittee on Telecommunications, Consumer Protection, and Finance of the Committee on Energy and Commerce, House of Representatives, Ninety-ninth Congress, second session on H.R. 3687 and H.R. 3800, bills to permit the Bell operating companies to provide information services and to manufacture telecommunications equipment so long as such services and manufacturing are not subsidized with the proceeds from the provision of local exchange telephone service or other regulated telecommunications services and regulation by the Federal Communications Commission, March 13, 1986.