Avaya Partner 18 Connection Manual page 279

Troubleshooting
If you cannot get AT&TConnect to work properly on COM3, check if another
device is using COM1 at the same time. Similarly, if you cannot get
AT&TConnect to work on COM4, determine if another device is using COM2 at
the same time. If so, you may need to make some changes to your PC
configuration to support using PassageWay on COM3 or COM4. Refer to
Appendix B for more information. If you need additional assistance in setting
up devices on COM3 or COM4, consult your PC hardware vendor.
Problem 4: AT&TConnect occasionally displays its initialization window
while one or more PassageWay applications are running
AT&TConnect displays its initialization window whenever it establishes (or re-
establishes) communication with the PassageWay adapter. Generally, this
window is only displayed once, at the time when a single PassageWay
application is first executed. However, if a communications problem occurs at
any time, AT&TConnect attempts to clear the problem by reinitializing the
adapter, which causes the initialization window to reappear temporarily. If this
occurs while a PassageWay application is performing a task involving the
telephone (for example, while AT&TSet is reading your telephone's
programming), the operation in progress will be aborted and must be restarted
manually once the initialization window disappears. If no task involving the
telephone is in progress during this process, the operation of PassageWay
applications is unaffected.
The chance of a communications problem depends on your PC's configuration.
PassageWay operates at a data rate of 4800 baud, and it relies on Windows
to manage the flow of data through your PC's serial port. Depending upon the
speed of your PC, the number and type of applications you are using, and
various hardware components in your PC configuration, Windows will be able
to manage serial communications with varying degrees of effectiveness.
If you encounter frequent communications errors using PassageWay Solution,
your PC's current hardware configuration may not support reliable high-speed
communications under Windows. Appendix B includes information about
choosing serial port hardware that can work reliably at high speeds under
Windows.
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