Get something like a CISCO SPA 112, configure it for faxing:
I’m configuring a new FreePBX Distro installation and having trouble finding the email configuration for outgoing emails. I’m following the steps in the link below but I don’t have the email option in my system admin. Find clip studio serial.
On FREEPBX Create an extension for the fax device using chan_sip.
(can't remember where I got the following from but have tested and it does work.)
Select Voice in the Menu Bar, and then select either Line 1 or Line 2 depending on which line you have used for your fax, In the Network Settings section, enter the following settings:
Network Jitter Level: very high Jitter Buffer Adjustment: no
Next, in the Supplementary Service Subscription section, enter the following settings: Call Waiting Serv: no Three Way Call Serv: no
Now, in the Audio Configuration section, enter the following settings to support T.38 fax: Preferred Codec: G711u (USA) or G711a (rest of the world) Use Pref Codec Only: yes Silence Supp Enable: no Echo Canc Enable: no FAX Passthru Codec: G711u (USA) or G711a (rest of the world) FAX Passthru method: ReINVITE FAX Enable T38: yes FAX T38 ECM Enable: yes Fax Tone Detect Mode: Callee only Click Submit to save your settings.
Freepbx Test Email
Verify that your fax machine BAUD rate is set to a speed between 7200 and 14400. I suggest 9600. You should now be able to successfully send (and receive) a fax over your chosen VoIP provider using your Cisco SPA112 or SPA122.
On your Freepbx box make sure that you edit sip settings and enable T.38.
Freepbx 14 Email Setup
Chris isaak wicked game. Note: This will work most of the time; however faxing over VOIP is not 100% reliable. Any spikes in latency are going to cause the fax to fail.