Send Fax from the PBX

To send a fax from the PBX, you need to install S2 module or SO module on the PBX, and connect a fax machine to the FXS port on the PBX.

  1. Connect a fax machine to the FXS port of the PBX.
  2. Set an FXS extension on the PBX.
    1. Log in the PBX web interface, go to Settings > PBX > Extensions, set the extension Type to FXS, and select the FXS port that your fax machine is connected.
    2. Click Save and Apply.
  3. Set up an outbound route for the FXS extension.
    1. Go to Settings > PBX > Call Control > Outbound Route, configure an existed outbound route or add a new outbound route.
    2. Set the Dial Patterns of the outbound route.
    3. Select a trunk that supports to send fax.
      Note: If you choose a SIP trunk to send fax, you need to enable T.38 Support on the Advanced settings page of the SIP trunk.
    4. Select the FXS extension.
    5. Click Save and Apply
Dial phone numbers on the fax machine according to the dial patterns of your outbound route. After hear a fax tone, you can start to send fax.