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Chapter 3 Solving Common Problems 17
For help with this problem… See
page…
The modem disconnects while communicating
with a remote system.
24
The modem does not make a data connection. 25
You receive bursts of errors occasionally, but
otherwise data quality is good.
25
Random errors occur in transmitted data. 25
Data is missing. 25
The quality of the voice messages needs to be
improved.
26
Your faxmodem is not communicating data as
fast as you expect.
26
General Troubleshooting
Problem: The software cannot find the modem and the
modem does not respond to AT commands.
(The following comments apply to many
other problems as well.)
Solution: The most common error with modems is that
the communications software is not configured
for the same serial port as the modem. Check
which serial port the modem is using. Make
sure that the software’s serial port setting
matches the modem’s serial port setting.
Problem: The modem takes too long to hang up at the
end of a telephone call.
Solution: Your modem may not be receiving the required
initialization string, which should include the
&C1 setting, from your software.
In your software, make sure you have selected
your modem. If not, select it and exit and restart
your communications software. If you still have
problems, add &C1 to the initialization string,
then exit and restart the software. (See Tips for
Selecting Setup Options in Chapter 2.)