The IRQ and I/O Port hardware configuration is listed. If
an error message is listed, please refer to the
Troubleshooting chapter of this manual.
4. In the "Own ISDN Number" box, type in the subscriber
number of your own ISDN line.
5. Press "Loopback Test" to begin the diagnostic procedure.
The diagnostic program 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.
If you see any error messages, please consult the
Troubleshooting chapter of the manual.
Chapter 2 — Installation