On Mon, Feb 11, 2013 at 3:46 PM, Steven Schoch <schoch+freeswitch.org@xwin32.com> wrote:

It turns out I was too optimistic. It works *sometimes*. It makes a successful FAX transmission only about 20% of the time. Usually it fails. A typical failure is in http://pastebin.freeswitch.org/20570

This is HylaFax running on the Freeswitch machine, using the SpanDSP modems. I'm calling a FAX number that's an analog PSTN line. Can anybody tell me what I'm doing wrong?

Wanting to use faxes? ;) Sorry, as a fax hater I couldn't resist.

Question: do you have the capture of a successful call? Can you get pcaps/siptrace of failed vs. successful and open them in Wireshark and do a comparison? I didn't see anything in the FS console log that suggested what the error might be, although if you compare that to a working fax then maybe that will yield a clue as to where to look next. Same w/ the SIP trace.

-MC

--
Steve

On Wed, Feb 6, 2013 at 5:58 PM, Steven Schoch <schoch+freeswitch.org@xwin32.com> wrote:

On Fri, Feb 1, 2013 at 4:53 AM, shouldbe q931 <shouldbeq931@gmail.com> wrote:

As a replacement for the faxback plugin.

how about using hylafax+ with t38modem ? http://hylafax.sourceforge.net/

or the commercial "fork" from iFax ? http://www.ifax.com/products/hylafax/fax-over-ip.html

I am happy to report that I have (partial) success! I used HylaFSP (commercial HylaFAX Windows client) to send a FAX to HylaFAX running on the FS machine, connecting to /dev/FS0.

The FAX wasn't received 100%, because it didn't go through the T.38 gateway, and the Caller-ID didn't get set, so that's what I'd like to fix next.

I already have this rule in the outgoing dialplan:

<condition field="${fax_call}" expression="^true$" break="never">
<action application="set" data="fax_enable_t38=true"/>

<action application="set" data="execute_on_answer=t38_gateway peer"/>
</condition>

I set the $fax_call variable (and the $outbound_caller_id_number variable) in the directory entry that's used by the ATA that the analog FAX machine uses.

What I want to do now is set the same variables on channels opened by the /dev/FS0 modem. Where should I put these variables?

--

Steve

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