Zoom USB Faxmodem - Manual (Page 18)

16 USB Faxmodem Installation Guide
5. Follow the instructions for determining and resolving a hard-
ware conflict.
This should solve your problem. Remember to write down your COM
port setting.
Other Troubleshooting Tips
Problem : Your modem seems to install under Windows, but
Windows cannot find it later.
Solution : If your computer has a built-in modem on the mother-
board, Windows may reinstall it the next time you start
up. Consult your computer’s documentation or call your
computer’s manufacturer to get instructions on how to
disable the built-in modem.
Problem: The software cannot find the modem and the modem
does not respond to AT commands. (The following
comment applies to many other problems as well.)
Solution : The most common problem with modems is that the
communications software is not configured for the same
port as the modem.
Check which port the modem is using. Make sure that
the software’s COM port setting matches the modem’s
COM port setting.
From the Windows toolbar, go to Start | Settings | Con-
trol Panel | Modems | Diagnostics. Click the COM
port for your modem, then click More info. If Windows
displays the modem’s ATI responses, the modem is
working.
Another problem is that COM port resources may be in
use by another device. Make sure that the COM port re-
sources used by the modem are not being used by any
other device, such as a soundcard.