EXHIBIT 7.1 JOINT FILING AGREEMENT The undersigned hereby agree that the Amendment No. 18 to Schedule 13D to which this Joint Filing Agreement is attached as Exhibit 7.1, is filed on behalf of each of us. Date: March 9, 2001 Gold & Appel Transfer,...

                          EXHIBIT 7.1

                     JOINT FILING AGREEMENT

     The undersigned hereby agree that the Amendment No. 18 to Schedule 13D to
which this Joint Filing Agreement is attached as Exhibit 7.1, is filed on
behalf of each of us.

Date:     March 9, 2001

                                   Gold & Xxxxx Transfer, S.A.,
                                   a British Virgin Islands corporation


                                   By: /s/ Xxxx Xxxxxxxx
                                      -------------------------------------
                                        Xxxx Xxxxxxxx, Attorney-in-Fact for
                                        Gold & Xxxxx Transfer, S.A.




                                   Foundation for the International Non-
                                   Governmental Development of Space,
                                   a Delaware not for profit corporation


                                   By: /s/ Xxxx Xxxxxxxx
                                      -----------------------------------
                                        Xxxx Xxxxxxxx, President




                                   Xxxx Xxxxxxxx, Individually


                                    /s/ Xxxx Xxxxxxxx
                                   -----------------------------------
                                   Xxxx Xxxxxxxx