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COMSPHERE 3800 Series Modems – Model 3830
A-4 August 1998 3830-A2-GB91-30
Table A-3
(1 of 4)
Modem – VF Connection
Symptom
Action
Modem does not receive
a dial tone
Attach the telephone directly to the wall outlet
to verify that a dial tone exists.
Make sure the VF line is connected to the
modem’s rear jack labeled Dial.
Modem does not go
off-hook and answer an
incoming call
Verify that the Auto-Answer Ring Count
configuration option (S-Register 0) is set to a
value other than 0 (disable).
Verify that the DTE is providing DTR to the
modem.
If the DTE does not provide DTR to the
modem, verify that the modem’s &D command
(DTR Action configuration option) is set for
Ignore (&D0).
Verify that all cables are attached to the
correct connectors on the rear of the modem.
Modem goes off-hook,
answers, but does not
connect
Perform a Local Analog Loopback test and
verify that data entered at the DTE is echoed
back to the DTE.
Verify that the originating modem is
compatible.
Verify that originating modem recognizes your
modem’s answer tone.