Installation guide

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Troubleshooting 139
The fax is not working and the ATA FXS LED that corresponds to the port connected to the fax
machine is OFF when the fax is attempting to send or receive a fax.
The fax is not working and the ATA FXS LED that corresponds to the port connected to the fax
machine is solid GREEN.
Cause Action
The Gateway and the fax are
not communicating.
 Verify the connection between the FXS port and
your fax machine. For background information
and configuration instructions, see “Overhead
Paging Overview” on page 22.
 Verify the fax configuration on the WebUI:
a. Log on to the WebUI as administrator, click
System Settings, then Fax Configuration.
b. Verify that Fax is set to Enable and that Fax
Mode is set to the appropriate setting.
c. Verify that Fax Destination is set to the
appropriate ATA FXS port and that the fax
machine is physically connected to that jack.
d. Verify that Fax Line is set to the correct
Gateway line. Verify that the physical outside
line on which incoming faxes are received is
connected to the chosen
Fax Line on the
Gateway. If not, outgoing faxes will work but
incoming faxes will be directed to the Auto
Attendant instead of being directed to the fax.
e. Click .
f. Make sure the fax machine has power and is
turned on.
Cause Action
The FXS port is configured for
fax, and a phone connected
to the FXS port is off hook.
 Verify the fax machine settings.