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Admin Guide
Admin Guide for Yeastar S-Series VoIP PBX.
Call Features
Fax
Yeastar S-Series VoIP PBX supports Fax over IP. You can send or receive a fax via a physical fax machine or receive a fax over the network.
Receive Fax via Fax Detection
If you want to receive calls and also receive faxes through a trunk, you can set fax detection on your inbound route.

Receive Fax via Fax Detection

If you want to receive calls and also receive faxes through a trunk, you can set fax detection on your inbound route.

Go to Settings > PBX > Call Control > Inbound Route, configure your inbound route.
Select the trunk to the Selected box.
Set the Destination to IVR.
Check the option Enable Fax Detection.
Set the Fax Destination to an FXS extension or Fax to Email.
If you choose a FXS extension, your fax machine should be connected the relevant FXS port on the PBX.
Click Save and Apply.