No. 80-2629. Argued September 28, 1981. Decided March 17, 1982. Rehearing Denied June 8, 1982. Paul J. Spielberg, Elliott Moore-N.L.R.B., Washington, D.C., for petitioner. Stephen S. Schulson, Ill. Bell Telephone, Chicago, Ill., for respondent. Petition from the National Labor Relations Board. Before BAUER, Circuit Judge, FAIRCHILD, Senior Circuit Judge, and BROWN, Senior District Judge. The Honorable Wesley E. Brown, Senior District Judge of the District of Kansas, is sitting by designation. WESLEY