3Com 005683-00 Manual page 63

Diagnosis:
You may have plugged your modem's phone
cord into the wrong jack on the modem.
Possible Solution:
Make sure the phone cord is plugged into a
jack labeled with the word TELCO or a wall
plug icon.
Diagnosis:
You might have a bad phone cord connection
to your modem.
Possible Solution:
The phone cord should be plugged into the
TELCO jack on the modem and the wall
phone jack. The phone cord should be no
longer than 12 feet in length. Use the phone
cord included in your U.S. Robotics box if
possible.
T O
ROUBLESHOOTING AND
H R
NLINE ELP ESOURCES
Diagnosis:
The phone jack may have been wired
incorrectly.
Possible Solution:
Contact the telephone company. Ask them to
make sure the tip and ring are on the inside
pair of wires.
Diagnosis:
You may have devices between the modem
and the phone jack.
Possible Solution:
There should be no line splitters, fax machines,
or other devices between the modem and the
wall jack.
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