Release Notes P/N 93001236B

                                 Digi ISDN Tools
                                  Version V2.04

                            Microsoft Windows 95/98/98SE/Me
                            Microsoft Windows NT 4.0
                            Microsoft Windows 2000

                              Product/Part numbers
                            40002134B English version
                            40002133B French version
                            40002132B German version

                                   02/06/2001


INTRODUCTION

  The Digi ISDN Tools contain several utilities that test the ISDN equipment
  and allow different level of problem analysis.

  CONNECTION TESTER

    The Connection Tester (ConTest) is a tool to test the ISDN equipment and
    the ISDN line for correct installation and configuration.

  D-CHANNEL MONITOR

    The D-Channel Monitor (DCM) is a tool to monitor the communication data on
    the D-channel. It can be used to identify ISDN line problems in more detail.

  UDD MONITOR

    The UDD Monitor is a tool to do in-depth driver problem analysis. It should
    only be used under supervision of tech support. It is installed by default.


SUPPORTED PRODUCTS

  DataFire Pico
  DataFire Micro V
  DataFire QuadMicro


HISTORY

  V2.04 (02/06/2001)

    New: Added support for the DataFire QuadMicro ISDN adapter.

    Fixed: CAPI controller #9 was displayed wrong in the listbox of the
           "Select controller" dialog.

    Fixed: The listbox elements of the "Select controller" dialog are sorted now.

    Fixed: DCM did assign trace output to the wrong instance in multi-adapter or
           multi-controller tracing scenarios.

    Fixed: DCM crashed on some systems due to improper string initialization.

    Changed: Removed irritating file version output.

    Changed: Changed file description to 'D-Channel Monitor'

  V2.03

      Not released to the public.

  V2.02 (06/28/2000)

      New: Cross-language updates are supported now.

      Fixed: The D-channel Monitor refused to run on a clean Windows 95
             system (with no recent Internet Explorer, Office, etc.
             installed).

      Fixed: The Connection Tester and the Test Wizard were not updated
             if updating an older ISDN Tools installation.

      Fixed: It was impossible to uninstall the ISDN Tools after updating
             an older version or if the setup was started multiple times.

      Fixed: The D-channel Monitor does not clear the display area
             correctly after the log has reached a certain length.

      Changed: Removed installation of CCM and TSP from ISDN Tools.
               They are now installed with the Columbus World software.

      Changed: The installation now checks for files that are in use
               during the setup process and displays a reboot dialog
               if necessary.

  V2.01 (05/15/2000)

      New: The ISDN Tools are now shipped as a self-extracting executable.

      Fixed: It was impossible to install the ISDN Tools on a hard disk
             other than "C:".

  V2.00 (04/12/2000)

      First release tracked in this document.