Conceptronic 128U Guía De Instalación De Hardware página 10

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3. Uninstalling the USB ISDN TA
If you decide to permanently remove the driver and utility of the USB ISDN
TA from your system, you have to run the un-installation program from the
ISDN Utility program group as follow:
1. Go to: Start-> Programs -> and click the 'ISDN Utility' icon.
2. Click the 'Uninstall DRV & UTL' option.
3. Check the items that you want to completely remove from the
Windows system and press 'OK'.
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