Nos. 90-3857, 91-3060. Submitted Under Third Circuit Rule 12(6) June 7, 1991. Decided June 25, 1991. As Amended June 28, 1991. James F. Brady, New Jersey Bell Telephone Co., Newark, N.J., for respondent. Howard E. Perlstein, Richard A. Cohen, N.L.R.B., Washington, D.C., for petitioner. Ellen Dichner, Gladstein, Reif Meginniss, New York City, for intervenor. Appeal from the National Labor Relations Board. Before SLOVITER, Chief Judge, and GREENBERG and HIGGINBOTHAM, Circuit Judges. OPINION OF THE