Installation guide

Synapse Installation Guide Back to Contents
Troubleshooting 140
The fax is not working and the ATA FXS LED that corresponds to the port connected to the fax
machine is flashing GREEN.
The fax machine is connected to the telephone line through the Synapse system and the FXS LED
indications appear correct, yet outgoing faxes fail.
Unable to receive incoming faxes.
Unable to make phone calls on the telephone that is part of my fax machine.
Cause Action
The ring voltage is present
but your FXS configuration
may be wrong.
 Change the Fax Mode:
a. Log on to the WebUI as administrator, click
System Settings, then Fax Configuration.
b. Change the Fax Mode setting, then click
.
The default Fax Mode is G.711. If the fax fails
to work in G.711 mode, switch to T.38.
Cause Action
Number dialed incorrectly.  To send faxes, ensure that you enter a 9 or
whatever digit, if any, that must be dialed first for
an outside call. For example, 9-1-555-0123.
Cause Action
Fax line not configured
properly.
1. Log on to the WebUI as administrator, click
System Settings, then Fax Configuration.
2. Verify that Fax Line is set to the correct line.
3. 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.
4. Click .
Cause Action
System limitation.  Once an FXS port is configured for fax, the fax
machine’s integrated telephone cannot be used
for audio calls. If the fax machine has a corded
handset, it will not receive voice calls, and even
though a user may get a dial tone, dialing out is
not possible.