36
C
HAPTER
6: U
SING
THE
M
ODEM
Modem does not dial correctly
Make sure that you have entered the telephone number correctly if you are using
the dialing directory.
Be sure that you added any required prefix (such as 1) before your number when
dialing long distance.
The other line could be busy or not answering. Make sure that the other line is
available before calling.
If you are dialing internationally, your modem may not recognize the dial tone.
Before dialing the telephone number, enter the command ATX5 to ignore the dial
tone.
Modem not responding
Check your computer's BIOS setup. If it requires certain settings for modems, be
sure they have been turned on.
Make sure you have selected the correct COM port in your software setup.
Make sure the modem has been connected completely. Check all your connections
and make sure they are all secure.
Reboot your system.
Modem does not dial
Check your phone line and cable connections. See “Installing and Connecting
the Card” on page 1.
Make sure no other phone extension has been picked up on the same line.
Make sure you are using a standard analog telephone line. You might receive an
error if you are trying to connect to a digital phone system or PBX.
Listen for a normal dial tone on the line. If the dial tone sounds different than
normal, find another line.
Modem cannot connect to remote access
server
When connecting to a remote access server running V.34 protocol (up to 33.6 Kbps)
with devices such as 3Com AccessBuilder, configure your DUN settings to reflect the
connection speed. We recommend 19200 or 38400 Kbps. Settings of 57600 or
115200 Kbps will cause a failure.
Modem does not fax
Make sure you have selected the correct fax class.
Make sure that you do not have another communications program open.
Be sure you selected the correct printer driver in your word processing program.
Turn off all power management.
Modem does not connect
Make sure the parity, modem speed, word length, and stop bits are set up according
to specifications.
Try removing all of the error correction and data compression.
"No Dial Tone" Message
Check all the cable connections and make sure they are secure. The connection to
the phone line could be incomplete or the phone cable could be bad.
Make sure the telephone line you are using is not in use by someone else.
Check to make sure you are using a standard analog telephone line. If you are trying
to connect to a digital phone system or a PBX, you may receive an error message.
Make sure the phone line is in working order by connecting a standard telephone
and listening for a dial tone.
"Digital Line Error" Message
You are trying to connect to a digital phone system or a PBX. Change lines to
connect to a standard analog telephone line.
Symptom
Solution
