AGREEMENT

                                                                       EXHIBIT 1

                                   AGREEMENT

          In accordance with Reg. S. 13d-1(f)(1), each of the undersigned hereby
agrees that ▇▇▇▇▇▇▇▇▇ Whampoa Limited shall file on behalf of each of them this
Schedule 13D relating to the Common Stock, $0.001 par value, in VoiceStream
Wireless Corporation, to which this Agreement is an Exhibit and such statements
and amendments thereto as may be required to be filed with the United States
Securities and Exchange Commission.

Dated:  March 3, 2000

                                        FOR AND ON BEHALF OF
                                        ▇▇▇▇▇▇▇▇▇ WHAMPOA LIMITED

                                        By:       /s/  ▇▇▇▇▇ ▇. ▇▇▇▇
                                             -----------------------------
                                             Name:  ▇▇▇▇▇ ▇. ▇▇▇▇
                                             Title: Director

                                        FOR AND ON BEHALF OF
                                        ▇▇▇▇▇▇▇▇▇ TELECOMMUNICATIONS
                                        PCS (USA) LIMITED


                                        By:       /s/  ▇▇▇▇▇ ▇. ▇▇▇▇
                                             -----------------------------
                                             Name:  ▇▇▇▇▇ ▇. ▇▇▇▇
                                             Title: Director

                                        FOR AND ON BEHALF OF
                                        ▇▇▇▇▇▇▇▇▇ TELECOMMUNICATIONS
                                        HOLDINGS (USA) LIMITED

                                        By:       /s/  ▇▇▇▇▇ ▇. ▇▇▇▇
                                             -----------------------------
                                             Name:  ▇▇▇▇▇ ▇. ▇▇▇▇
                                             Title: Director

                                        FOR AND ON BEHALF OF
                                        ▇▇▇▇▇▇ KONG (HOLDINGS) LIMITED

                                        By:       /s/  ▇▇▇▇▇ ▇. ▇▇▇▇
                                             -----------------------------
                                             Name:  ▇▇▇▇▇ ▇. ▇▇▇▇

                                       3