Installation guide

Synapse Installation Guide Back to Contents
Troubleshooting 138
Fax Configuration
While using T.38 mode, unable to receive faxes or having persistent fax transmission failures.
While using T.38 mode, fax usually works with occasional failures.
While using G.711 mode, fax usually works with occasional failures.
Cause Action
Incompatible Fax Mode
setting.
 Change the Fax Mode setting:
a. Log on to the WebUI as administrator, click
System Settings, then Fax Configuration.
b. Set Fax Mode to G.711.
c. Click .
Cause Action
Network impairment issues.  Resend the fax later or use the fax machine’s
retransmission feature.
Cause Action
Network impairment issues.  Resend the fax later or use the fax machine’s
retransmission feature.
 If the above does not work, try switching the Fax
Mode setting.
a. Log on to the WebUI as administrator, click
System Settings, then Fax Configuration.
b. Set Fax Mode to T.38.
c. Click .