I am just into the setting of hylafax. it is not very simple...
Not true... I think it´s easy... and can help you if you need.
Most problems are in to configure modem. That get a lot easier with external modem.
Use minicom to diagnose if your modem works. later start to install Hylafax.
AvantFax looks really great but it is in PHP5 so it is out of question before some time
Not REALLY true... there are HowTos about how to use PHP5 inside a share. Search for this on wiki or here in forums.
I found this at least to get an interface to set up Hylafax.
http://forums.contribs.org/index.php?topic=39834.0
look at the last message
Yes, definitly this is the SME way to do (SMERP). Works great... easy setup.
I have problems to have a WEB interface to view received faxes, forward/delete/print them and even send a TXT/PDF/PS/TIFF fax from web.
This would be done by AvantFAX or MoviFAX. I´ll try to get one of them working if nobody here has done this before.
Regards
Jáder