Compaq Armada M700 Series Reference Manual page 170

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 16-13
Continued