Good to know and I will definitely be looking for new solutions always - I bet I have wasted conservatively 400 hours over the last 11 years we have been doing Asterisk systems futzing with FAX.
When we first started, most of our base was TDM PRI's (not the faked IP PRI's) and we were using Sangoma and Digium FXS Cards for the Analog connections and it worked perfectly.
Then came VoIP, and literally up until late last year, we were putting FAX machines on Analog lines because we just couldn't make it work - finally we can, but I live in fear of an Asterisk update or a provider change that breaks it again.
Thanks for all the hard work by the way - FreePBX is fantastic and miles ahead of where it was when I started using it in 2004.