EXHIBIT 7.1 JOINT FILING AGREEMENT The undersigned hereby agree that the Schedule 13D to which this Joint Filing Agreement is attached as Exhibit 7.1, is filed on behalf of each of us. Date: November 16, 2001Joint Filing Agreement • November 16th, 2001 • Covista Communications Inc • Telephone communications (no radiotelephone)
Contract Type FiledNovember 16th, 2001 Company IndustryThe undersigned hereby agree that the Schedule 13D to which this Joint Filing Agreement is attached as Exhibit 7.1, is filed on behalf of each of us.