Nos. 85-1924, 85-2225. Argued February 10, 1986. Decided March 3, 1986. Lincoln V. Janus, Illinois Bell Telephone, Co. Legal Dept., Chicago, Ill., for petitioner. Judith Dowd, N.L.R.B., James Coppess, AFL-CIO, Legal Dept., Washington, D.C., for respondent. Petition for review from the National Labor Relations Board. Before BAUER, FLAUM and EASTERBROOK, Circuit Judges. EASTERBROOK, Circuit Judge. Section 7 of the National Labor Relations Act, 29 U.S.C. § 157, requires employers that seek to conduct