Exhibit 3.7

                              AMENDED AND RESTATED
                           ARTICLES OF INCORPORATION

                                       OF

                                  CORCOM, INC.


                                  ARTICLE ONE


The name of the corporation is Corcom, Inc., and the corporation's file number
is 3508-193-3.


                                  ARTICLE TWO


                  The registered agent is National Registered Agents, Inc. The
registered office is 208 South LaSalle Street, Suite 1855, Chicago, IL 60604.

                                 ARTICLE THREE


                  The purpose for which the corporation is organized: To engage
in any lawful act or activity for which corporations may be organized under the
Illinois Business Corporation Act of 1983, as amended.


                                  ARTICLE FOUR

                  The corporation shall have authority to issue 1,000 shares of
Common Stock, par value $.01 per share of which 1,000 shares are issued and
outstanding for an aggregate consideration of $1,000.00.

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