Avaya Partner 18 Connection Manual page 276

Troubleshooting
COM ports, and you could erroneously administer AT&TConnect to use
this same COM port. When selecting a serial port for AT&TConnect to
use, you should be careful that the COM port you select is not already
being used by another device in your PC.
AT&TConnect's software-based adapter test passes.
To assist you in diagnosing problems, AT&TConnect contains a built-in
adapter test procedure. This test can be run directly from the
Communications Error dialog box by choosing the Test button.
If the test procedure concludes successfully, AT&TConnect is
communicating properly with your PassageWay adapter over the COM
port you selected, and you should select the Connect button on the
Communications Error dialog box to restore normal operation.
If, however, the test fails, an error number will be provided. Use the
following table to interpret the error numbers and to find suggestions for
how to resolve the particular error you encountered.
9-7