I find it interesting that the ZRTP engine threw a warning. Do you see any ZRTP messages on the Linux log where the fax actually worked?
-MC

On Tue, Jan 22, 2013 at 2:35 PM, Steven Schoch <schoch+freeswitch.org@xwin32.com> wrote:
Here's an update on my FAX project:

On our main FreeSWITCH pbx (on CentOS), I run this command through the CLI and it works:

freeswitch@internal> originate sofia/gateway/flowroute/1408739xxxx &txfax(/home/schoch/fax000007603.tif)

I did a basic install on a Windows machine, by downloading the installer, installing it, and changing the "default_provider" lines in vars.xml in order to make it connect to our pbx.  A "sofia status" shows it's connected.

Then I ran this command on the Windows machine:
freeswitch@internal> originate sofia/gateway/external::starnet_fax/1408739xxxx &txfax(C:/Users/Schoch/Pictures/fax000007603.tif)

It rang the FAX machine, but the FAX never got there.  It got some sort of a timeout:
2013-01-22 14:09:10.224456 [DEBUG] switch_rtp.c:928  [ zrtp engine]: WARNING! HELLO Max retransmissions count reached (20 retries). ID=1
and
2013-01-22 14:10:07.744746 [DEBUG] mod_spandsp_fax.c:500 Fax processing not successful - result (2) Timed out waiting for initial communication.

I'm not sure where to go from here.  Any ideas?

-- 
Steve

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Michael S Collins
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