10-12 Troubleshooting
Writer: Unknown Saved by: Debbie Machac Saved date: 10/13/97 10:29 AM
Part Number: 284809-003 File name: Ch10.doc
Modem Problems and Solutions
Continued
Problem Possible Cause Solution
No dial tone Phone service is not
connected to the
telephone wall jack.
Verify service from the local
phone company by the following
steps:
1. Unplug the telephone cable
from the telephone wall jack.
2. Connect a telephone to the
jack, pick up the handset, and
listen for a dial tone. If there
is a dial tone, reconnect the
modem to the telephone wall
jack with the telephone cable
and make sure all
connections are secure.
3. If there is still no dial tone,
contact your local phone
company or building
manager.
Phone is connected to a
digital PBX jack.
Plugging the modem into a digital
line will result in no dial tone and
may cause permanent damage to
the modem from excessive
current. Reconnect the modem
cable to an analog phone jack,
then reestablish connection
The modem is not
responding to
commands from the
computer keyboard.
Verify the modem and computer
are connected:
1. Click Start, Programs,
Accessories, HyperTerminal.
2. Go to Terminal Mode, then
type
AT
and press the
Enter
key.
3. 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 step 1.
4. Type
ATDT
and listen for a
dial tone.
5. Type
ATHO
to hang up.
Continued
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