Exhibit 7.1 Joint filing agreement The undersigned hereby agree that Amendment No. 3 to Schedule 13D to which this Joint Filing Agreement is attached as Exhibit 7.1 is filed on behalf of each of them. Dated: March 7, 2003 Warren H. Feldman,...Covista Communications Inc • March 7th, 2003 • Telephone communications (no radiotelephone)
The undersigned hereby agree that Amendment No. 3 to Schedule 13D to which this Joint Filing Agreement is attached as Exhibit 7.1 is filed on behalf of each of them.
