These instructions were provided by one of our customer.
2) in pbx web console, create an IAX extension. Make sure to
– enter a secret. This secret will be used later on so make sure to enter it.
– disable dictation service
– set “Record Incoming / Outgoing” to “Never”
3) Create an inbound route that forwards to the newly created IAX extension above
4) create a new virtual fax with the same extension and secret as in step 2)
5) restart asterisk and you’re done
Hope this will help you using our DIDs for FAX.