First, try to catche RE-INVITE with, for example, ngrep -d eth0 -q -W byline -i t38 host &lt;ITSP PROXY&gt;. End debug udptl flow with tshark -R t38 or tcpdump -s0 and then analyze with wireshark.<br><br><div class="gmail_quote">
2012/1/14 Paige Sullivan <span dir="ltr">&lt;<a href="mailto:psullivan@concerttelecom.com">psullivan@concerttelecom.com</a>&gt;</span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I&#39;ve been trying in vein to get T.38 faxing to work properly.<br>
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My provider is VOIP Innovations and my ATA is an EdgeWater 200EW (also tried a Grandstream HT-502) all of which support T.38.  I have read the wiki about a thousand times and tried every combination of parameters in my dialplan that I can think of.  I have the latest version of Freeswitch (built from git repo just today) and everything else works like a charm.<br>

<br>
What info should I post so maybe someone out there can give me some ideas?  Like I said, I&#39;ve tried about everything I can think of - even enabling t38_passthru = true on each individual call.<br>
<br>
Any ideas at all?  Anyone using this provider and having T.38 work?  I&#39;m pretty desperate here and would even be willing to pay for an answer...<br>
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