Setup for Analog Fax w/ SIP Trunk (t.38 supported)

1

Hi All,

I want to experiment with connecting an analog fax machine with my Asterisk system. I’m using FlowRouter as my SIP trunk provider and they proudly support T.38.

Here’s the setup as I understand it, would someone please verify?

  1. Order any standard ATA adapter (would someone please recommend one?)
  2. Configure the ATA (if that even needs to be done, I assume so)
  3. Create a new extension for the fax machine in Asterisk
  4. Install the Fax for Free module from Asterisk
  5. Configure a new inbound route & DID just for faxing (I prefer this over auto-detection)
  6. Point new inbound route to new fax extension
  7. Somewhere enable T.38 Pass-through?

Am I on the right track?

2

You don’t need to complicate too much with Fax for Free, Asterisk does t38 passthrough from FlowRoute to your t38 configured ata just fine.

3

Thanks! So would you say the rest of the steps I provided are correct, just remove Fax for Free?

4

Don’t remove it if it’s working, it just isn’t necessary. The rest looks pretty fine.