<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">This has turned into a giant bug report. &nbsp;Bug reports go in jira. &nbsp;Putting details about bug reports here will absolutely guarantee that they will not get looked at. &nbsp;As i've already said once this week on the list about this issue, we need someone who can map out how to reproduce this issue and get it onto jira so we can track down the issue. &nbsp;Without that, without a doubt, it will not get fixed.<div class=""><br class=""></div><div class="">As for downgrading to 1.4 to fix the issue, I understand, but know that we are not putting other bugfixes into 1.4 anymore and eventually you will hit a bug you need to upgrade for, and you will be left without working faxes if we don't get this fixed. &nbsp;Please step up and help us track this down so we can get it fixed properly.</div><div class=""><br class=""></div><div class="">Thanks</div><div class="">Mike</div><div class=""><br class=""><div class=""><br class=""></div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On May 17, 2016, at 2:20 PM, Stefan Kainz &lt;<a href="mailto:stefan.kainz@1012.at" class="">stefan.kainz@1012.at</a>&gt; wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="content-type" content="text/html; charset=utf-8" class=""><div dir="auto" class=""><div class="">And on the voip part, we're extensively using g711 voip for fax, and in most cases it works like a charme.&nbsp;</div><div class="">But if there's high latency or packet loss - as you said, &nbsp;forget it.&nbsp;</div><div class=""><br class=""></div><div class="">Regards,<br class=""><br class="">Sent from my iPhone</div><div class=""><br class="">On 17 May 2016, at 19:54, Steven Schoch &lt;<a href="mailto:schoch+freeswitch.org@xwin32.com" class="">schoch+freeswitch.org@xwin32.com</a>&gt; wrote:<br class=""><br class=""></div><blockquote type="cite" class=""><div class=""><div dir="ltr" class=""><div class="gmail_extra">I just upgraded to the latest FreeSWITCH (version&nbsp;1.6.8-15 from&nbsp;<a href="http://files.freeswitch.org/repo/deb/freeswitch-1.6/" class="">files.freeswitch.org/repo/deb/freeswitch-1.6/</a>), so I'm starting to work on FA</div><div class="gmail_extra">X again.</div><div class="gmail_extra">So far success with:</div><div class="gmail_extra">FAX machine -&gt; Grandstream HT502 -&gt; LAN -&gt; FS -&gt; Flowroute -&gt; PSTN -&gt; POTS line -&gt; FAX modem (TRENDnet brand) -&gt; HylaFAX.</div><div class="gmail_extra"><br class=""></div><div class="gmail_extra">Then I tried:</div><div class="gmail_extra">FAX machine -&gt; Grandstream HT502 -&gt; LAN -&gt; FS -&gt; Flowroute -&gt; FS -&gt; application="rxfax"</div><div class="gmail_extra"><br class=""></div><div class="gmail_extra">This failed when I set&nbsp;fax_enable_t38_request=true and&nbsp;fax_enable_t38=true, but worked when I removed those lines. So what's going on here? When I remove those lines is T.38 not being used at all? I was under the impression that without T.38, FAX machines would fail because of latency present in VoIP. Is that not true? What about when the FAX machine is sending from the PSTN instead of the ATA?</div><div class="gmail_extra"><br class=""></div><div class="gmail_extra">--&nbsp;</div><div class="gmail_extra">Steve</div></div>
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