[Freeswitch-users] Fax detecting using originate

Gonzalo Gasca Meza gascagonzalo at gmail.com
Mon Jul 11 12:44:43 MSD 2016

Hi all,

I'm currently generating dial out using "ESL with python" and the originate
Since some dial out calls are fax I need to classify which of these calls
are fax, otherwise I record the ones which are normally answered.

I'm trying to use:

*   execute_on_fax_detect*

As follows:


Call is answered but I don't see any fax detection kicking in.
I also tried with +18884732963 which is the HP test fax number.
In the recording I can hear the Fax tones.

*FreeSWITCH (Version 1.7.0 git c9abf45 2016-06-27 22:23:25Z 64bit) is ready*



python --- ESL --> Freeswitch -- sip-- Twilio ---> PSTN ---> fax

When I use:
*originate loopback/9178 &txfax(/tmp/surface3d.tiff)*

I do see Fax modules being invoked:


Thank you
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