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Troubleshooting
Table A-4 provides some solutions to problems that can occur
when your modem tries to place a call.
Table A-4. Connection Problems while Placing a Call (1 of 3)
Symptom
Modem does not go
off-hook and begin
dialing
Modem dials but
does not connect
Action
Make sure the modem and PCMCIA socket are
configured for modem operation.
Make sure the telephone line connector is
connected to the modem. Make sure you are
using a supported telephone line connector.
If using AT dialing, refer to Table A-2, Computer
Connection.
When the modem goes off-hook, a dial tone
should be heard through the speaker if the
speaker is turned on (refer to the M command on
page 4-4). When the modem starts dialing, the
dial tone should stop as the touch-tone signals (or
dialing pulses) are sent. If the dial tone does not
break, check the setting of S11.
Refer to Making a Call with Your Modem
beginning on page 3-5 to verify that you are using
the proper command format.
Try setting &D, so that DTR is ignored.
Determine if you are calling out through a PBX.
You can check this by trying to dial the number
from a telephone. If there is a PBX, you need to
dial an access code number (usually a 9) and a W
(the Wait dial modifier) before the telephone
number.
Verify whether Tone or Pulse dialing is needed.
Make sure both modems are using the same or
compatible types of operating modes (check the
\N settings of both modems). Note that \N2, \N4,
and \N6 cause the modem to hang up if a
compatible error correction mode is not detected
for the remote modem. Try calling in an
Auto-reliable mode or Normal mode.
Issue 2
May 1995
A-5
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