I found that to send or receive a fax, I have a choice of res_fax + res_fax_spandsp or app_fax. Tried both and I successfully heard the fax sound with both modules.
Which one should I implement?
Thanks in advance.
Version: Asterisk 13.22.0/ Centos 7.5
The res_fax module with res_fax_spandsp is the supported mechanism. The app_fax module is deprecated and may not exist in future versions.
Thank you. I missed the following on the wiki.
The app_fax module has been deprecated in favor of the res_fax module and
the new res_fax_spandsp backend.