I have the most recent FreePBX (updated) and asterisk-22.214.171.124-1.el6.i686 on a Centos 6 i686 server.
Here's the problem.
When I do an outgoing call to an external recipient, then that recipient tries to send me a fax (it would be incoming fax) - my call gets dropped because the system takes care of it, and his fax also gets dropped because there's no default destination for fax.
chan_sip.c: == Redirecting %%%%%%%% to fax extension due to CNG detection
But there's no fax extension number so the call gets dropped.
If I do an outgoing call, it's ok.
chan_sip.c: FAX CNG detected but no fax extension
When I got an incoming call, it's also ok. But when I got an outgoing call AND incoming fax, the call gets dropped. It is fixed by 'faxdetect=no' in sip.conf, but it's not what I'd like to get - some extensions are softphones and can't receive faxes.
Do I have a configuration issue or there's a bug somewhere?