You need an ATA that hopefully won't mangle your fax transmissions. I've heard that the SPA 112's are pretty good, but that's only anecdotal. At least they are inexpensive, so it's not a large investment to give it a try.

-MC

On Wed, Jan 16, 2013 at 3:24 PM, Steven Schoch <schoch+freeswitch.org@xwin32.com> wrote:
On Tue, Jan 15, 2013 at 6:52 PM, Dave R. Kompel <drk@drkngs.net> wrote:
Another option would be on the Linux box, enable SPANDSP modems, and use com0com on windows to backup com ports to raw TCP connections. It supports both. That way it would talk over a TCP pipe to an emulated modem on your other FreeSWITCH box.

That sounds like the way to go.  I'll give that a try.

But first, I have another FAX problem.  The users here use a real FAX machine to send FAXes.  Since we're getting rid of the POTS lines, I attempted to use a (cheap) OBi100 to connect the analog FAX machine to the FreeSwitch box.  It didn't work.  Voice calls work, but it can't seem to sync with the remote FAX machine.  Any ideas how to get a regular FAX machine to work with VoIP?

-- 
Steve

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