Unable to receive fax FAXOPT not registered

Hi,

can someone help me on how to troubleshoot my problem in receiving fax. I am getting this error
ERROR[32198][C-000005e5]: pbx.c:4444 ast_func_write: Function FAXOPT not registered

Server details
FreePBX 13.0.190.2

Hi!

Is it the FreePBX distro or something else?

Did you compile Asterisk yourself? This error suggests that you don’t have the res_fax and res_fax_spandsp modules…

Good luck and have a nice day!

Nick

Hi,

Thanks for the reply.

This is a FreePBX distro.

Yes I did compile Asterisk and added the free fax for asterisk license. It is even working before (around 6 months ago) but now it isn’t not really sure why.

Hi!

What changed recently, did you recompile or update anything?

(Free) fax for Asterisk is deprecated (in favor of spandsp) and has been for a few years now if I recall correctly. Maybe what you updated recently completely dropped support for it…

Good luck and have a nice day!

Nick