Exhibit B JOINT FILING AGREEMENT The undersigned hereby agree that the Statement on Schedule 13G, dated February 15, 2007 with respect to the shares of Common Stock of Axesstel, Inc. and any further amendments thereto executed by each and any of us...

Exhibit B

                             JOINT FILING AGREEMENT

The undersigned hereby agree that the Statement on Schedule 13G, dated February
15, 2007 with respect to the shares of Common Stock of Axesstel, Inc. and any
further amendments thereto executed by each and any of us shall be filed on
behalf of each of us pursuant to and in accordance with the provisions of Rule
13d-1(k)(1) under the Securities Exchange Act of 1934, as amended.

This Agreement may be executed in separate counterparts, each of which shall be
deemed an original, but all of which shall constitute one and the same
instrument.

Dated: February 15, 2007


                                           POTOMAC CAPITAL MANAGEMENT LLC

                                           By:   /s/ Xxxx X. Xxxxx
                                                 ------------------------------
                                                 Xxxx X. Xxxxx, Managing Member

                                                 POTOMAC CAPITAL MANAGEMENT INC.

                                           By:   /s/ Xxxx X. Xxxxx
                                                 ------------------------------
                                                 Xxxx X.Xxxxx, President

                                           XXXX X. XXXXX

                                           By:   /s/ Xxxx X. Xxxxx
                                                 ------------------------------
                                                 Xxxx X. Xxxxx