Quick Start Guide
4.Press “Loopback Test” to begin the diagnostic procedure. It will make a call from the B1 channel that returns through the B2 channel. The D and B channels will be tested for line integrity.
Uninstalling the USB ISDN TA128
If you decide to permanently remove the driver and utility of the USB ISDN TA128 from your system, you must run the uninstallation program from the ISDN Utility program group as follows:
1.Click “Start”, “Programs” and click the “ISDN Utility” item.
2.Click the “Uninstall DRV & UTL” item. The following ISDN Uninstallation Program window opens.
3.Check the items that you want to completely remove from the Windows system and click “OK”.
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