Exhibit 1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including amendments...

                                                                       Exhibit 1

                             JOINT FILING AGREEMENT

          In accordance with Rule 13d-1(k) under the Securities Exchange Act of
1934, as amended, the persons named below agree to the joint filing on behalf of
each of them of a Statement on Schedule 13D (including amendments thereto) with
respect to the common stock of Integrated Alarm Services Group, Inc. and further
agree that this Joint Filing Agreement be included as an Exhibit to such joint
filings. In evidence thereof the undersigned, being duly authorized, hereby
execute this Agreement this 31st day of August, 2005.


                                                /s/ Xxxx X. Xxxxx
                                                -----------------
                                                    Xxxx X. Xxxxx

                                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

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