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)
Company FiledMarch 7th, 2003 IndustryThe 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.
Exhibit 7.1 Joint filing agreement The undersigned hereby agree that Amendment No. 2 to Schedule 13D to which this Joint Filing Agreement is attached as Exhibit 7.1 is filed on behalf of each of them. Dated: January 10, 2002 Warren H. Feldman,...Covista Communications Inc • January 15th, 2002 • Telephone communications (no radiotelephone)
Company FiledJanuary 15th, 2002 IndustryThe undersigned hereby agree that Amendment No. 2 to Schedule 13D to which this Joint Filing Agreement is attached as Exhibit 7.1 is filed on behalf of each of them.