Compaq Armada M700 Series Reference Manual page 118

Solving Modem Problems
Problem
Modem not
responding
Modem does not
dial correctly.
Characters are
garbled/transfer
rates are slow.
Continued
Possible Cause
Modem is not set up
correctly in system BIOS.
Telephone number is not
entered correctly in the
modem's dialing software.
There is noise in the
telephone line.
Solution
Check the computer
BIOS setup. If it requires
specific settings for
modems, be sure that
they have been enabled.
Make sure the
telephone number you
dialed is correct if you
are using the dialing
directory or the terminal
mode.
Dial 1 if you are dialing
long distance.
The other line could be
busy or not answering.
Make sure call waiting
is disabled.
The modem may not
recognize an
international dial tone.
Try the ATX3DT
command and the
telephone number.
Check your telephone
and modem cable
connections. If they
are a little loose, they
can cause noise on
the line.
Check with your local
telephone company for
a phone line filter.
Troubleshooting 13-13
Continued