The downside of rx_fax is that you need to compile it into asterisk.
The downside of iaxmodem is that (to my knowledge) you can't easilly
implement an auto-answer/detect fax/voice/ auto attendant/voicemail
system. The channel must be dedicated to faxing, and that's that. This
may or may not be an issue for you though.
The last fax setup I did was for a small 2-person office where they had
an existing fax machine that answered, listened for the remote fax
squawk, if it didn't get it, then it rung the phones daisy-chained to
it, and if they didn't answer it went to answering machine. I
implemented this in asterisk fairly easilly with rx_fax. I'm not sure if
you can do that with iaxmodem.
Another question along these lines : How does everyone one fax detection
on a sip channel? The only thing I've found is NvFaxDetect - anyone know
of anything else?
thanks
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