System information

17-16 Troubleshooting
COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED
Writer: Karen Williams Saved by: JAbercrombie Saved date: 05/24/99 1:53 PM
Part Number: 103542-001 File name: Ch17.doc
Solving Modem Problems Continued
Problem Possible Cause Solution
No dial tone, with or
without NO DIAL
TONE message
(continued).
The modem or
modem COM port
is disabled.
Refer to “Disabling a Device”
in Chapter 7.
The modem is not
responding to
commands from
the computer
keyboard.
1. At the command line in
terminal mode, type AT,
then press Enter.
■ If the modem displays
OK, the modem and
computer are working
together.
■ If the modem displays
ERROR, or does not
respond, restart the
computer and repeat
steps 1 and 2.
2. Type ATDT and listen for
a dial tone.
3. Press any key to hang
up the modem.
Modem sounds are
not audible.
Modem speaker is
turned off.
At the command line in
terminal mode, type ATM1.
System sound is
muted or turned
down.
Press the Fn+F5 hotkeys,
then adjust the volume.
Modem does not
dial correctly.
Call Waiting may
be interfering.
Disable Call Waiting before
dialing.
■ For information about
disabling Call Waiting,
consult your operating
system documentation.
■ To obtain the disable call
waiting code for your
dialing area, consult your
local telephone service
provider.
Continued