EXHIBIT 7.1 JOINT FILING AGREEMENT The undersigned hereby agree that the Amendment No. 15 to Schedule 13D to which this Joint Filing Agreement is attached as Exhibit 7.1, is filed on behalf of each of us. Date: December 20, 1999 Gold & Appel Transfer,...

                          EXHIBIT 7.1

                     JOINT FILING AGREEMENT

The undersigned hereby agree that the Amendment No. 15 to Schedule 13D to
which this Joint Filing Agreement is attached as Exhibit
7.1, is filed on behalf of each of us.

Date:     December 20, 1999

                                   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.

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