<div dir="ltr">What revision of FreeSWITCH are you on? These behaviors have been solidified in 1.6.15, Sadly MOST of the details of how it all works is locked up in my head, I've just not had the time to write it all down and update the documentation. Can you outline all the scenarios you need to cover and if you have the ability know ahead of time which one needs to apply?<div><br></div><div>/b</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Feb 23, 2017 at 8:23 AM, Peter Steinbach <span dir="ltr"><<a href="mailto:lists@telefaks.de" target="_blank">lists@telefaks.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
Hello,<br>
<br>
we have the following screnario<br>
<ul>
<li>The caller, a local fax machine (Fax, ATA and Freeswitch) with
T.38, is behind a slow line so therefore T.38 is needed here</li>
<li>a central Freeswitch fax server serves as a central gateway to
the SIP provider</li>
<li>the SIP provider sometimes reinvites T.38 and sometimes not.</li>
<li>In case, the SIP provider does NOT answer with T.38, the
central Freeswitch fax server shall act as a T.38 gateway and
transcode between local fax (T.38) and SIP provider (T.30)</li>
<li>In case, the SIP provider does answer with T.38, the central
Freeswitch fax server shall pass T.38 to the local fax ,machine
(T.38)</li>
</ul>
<p>How we set this up<br>
</p>
<ul>
<li>according to the wiki we have a dialplan as follows: (this is
what CLI shows)<br>
</li>
</ul>
<p><tt>Dialplan: <a class="m_4268428807780379530moz-txt-link-abbreviated" href="mailto:sofia/internalvpn2/49274xxxxx@10.7.0.1" target="_blank">sofia/internalvpn2/49274xxxxx@<wbr>10.7.0.1</a> Action
set(fax_enable_t38=true)</tt><tt><br>
</tt><tt>Dialplan: <a class="m_4268428807780379530moz-txt-link-abbreviated" href="mailto:sofia/internalvpn2/49274xxxxx@10.7.0.1" target="_blank">sofia/internalvpn2/49274xxxxx@<wbr>10.7.0.1</a> Action
set(fax_enable_t38_request=<wbr>true)</tt><tt><br>
</tt><tt>Dialplan: <a class="m_4268428807780379530moz-txt-link-abbreviated" href="mailto:sofia/internalvpn2/49274xxxxx@10.7.0.1" target="_blank">sofia/internalvpn2/49274xxxxx@<wbr>10.7.0.1</a> Action
set(execute_on_answer=t38_<wbr>gateway self)</tt><tt><br>
</tt><tt>Dialplan: <a class="m_4268428807780379530moz-txt-link-abbreviated" href="mailto:sofia/internalvpn2/49274xxxxx@10.7.0.1" target="_blank">sofia/internalvpn2/49274xxxxx@<wbr>10.7.0.1</a> Action
ring_ready()</tt><tt><br>
</tt><tt>Dialplan: <a class="m_4268428807780379530moz-txt-link-abbreviated" href="mailto:sofia/internalvpn2/49274xxxxx@10.7.0.1" target="_blank">sofia/internalvpn2/49274xxxxx@<wbr>10.7.0.1</a> Action
bridge(<a class="m_4268428807780379530moz-txt-link-abbreviated" href="mailto:sofia/gateway/sip.provider.com/xxxxxxxxxxxxxxx@sip.provider.com" target="_blank">sofia/gateway/sip.<wbr>provider.com/xxxxxxxxxxxxxxx@<wbr>sip.provider.com</a>)</tt><tt><br>
</tt></p>
<p>In all profiles, we have<br>
<tt><param name="t38-passthru" value="true"/></tt><br>
</p>
<p>In case, the SIP provider does NOT answer with T.38, it works.
The caller's side is reinvited with T.38, the SIP provider side is
T.30<br>
</p>
<p>What the problem is: When the SIP provider' side IS answering
with T.38, then (sometimes, when I send it via cli from the local
freeswitch near the sending fax machine, it works)<br>
</p>
<ul>
<li>caller initiates a call</li>
<li>call is bridged to the SIP provider' side</li>
<li>we receive a T.38 Reinvite from the SIP provider' side</li>
<li>Freeswitch sends Trying back to the the SIP provider' side</li>
<li>Freeswitch logs: set(execute_on_answer=t38_<wbr>gateway self)<br>
</li>
<li>Freeswitch sends a T.38 Reinvite to the caller, establishes
T.38 on this side.</li>
<li>But the T.38 Reinvite from the SIP provider' side is not
answerered</li>
<li>So the SIP provider' sidehangs up after 10 sec of timeout.</li>
</ul>
<p>What are we doing wrong here? Is it possible to act as a t.38
passthrough router and a T.38 gateway in the same dialplan?<span class="HOEnZb"><font color="#888888"><br>
</font></span></p><span class="HOEnZb"><font color="#888888">
<p><br>
</p>
<br>
<pre class="m_4268428807780379530moz-signature" cols="72">--
With kind regards
Peter Steinbach
Telefaks Services GmbH
<a class="m_4268428807780379530moz-txt-link-freetext" href="mailto:lists" target="_blank">mailto:lists</a> (att) <a href="http://telefaks.de" target="_blank">telefaks.de</a>
Internet: <a class="m_4268428807780379530moz-txt-link-abbreviated" href="http://www.telefaks.de" target="_blank">www.telefaks.de</a>
</pre>
</font></span></div>
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<a href="http://www.freeswitch.org" rel="noreferrer" target="_blank">http://www.freeswitch.org</a><br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr">
<p><font face="courier new, monospace"><b><i><font size="4">Brian West</font></i></b><br><span style="font-size:x-small"><a href="mailto:brian@freeswitch.org" target="_blank">brian@freeswitch.org</a></span></font></p><p><b style="font-family:monospace,monospace;font-size:small"><i>Twitter: @FreeSWITCH , @briankwest</i></b></p><p><font size="2" face="monospace, monospace"><a href="http://www.freeswitchbook.com" target="_blank">http://www.freeswitchbook.com</a> <br><a href="http://www.freeswitchcookbook.com" target="_blank">http://www.freeswitchcookbook.com</a><br><br>Allison prompts for FreeSWITCH:</font></p><table cellspacing="0" cellpadding="0" style="font-size:12.8px"><tbody><tr><td valign="baseline"><p><span><a href="https://www.gofundme.com/allison-prompts-for-freeswitch" target="_blank"><b>https://www.gofundme.com/allison-prompts-for-freeswitch</b></a></span></p></td></tr></tbody></table><table cellspacing="0" cellpadding="0"><tbody>
</tbody>
</table><p><span><font face="monospace, monospace" size="2">Wish to schedule a meeting?</font></span></p><p><span><a href="http://app.timebridge.com/#/meet/freeswitch" target="_blank"><font face="monospace, monospace" size="2">http://app.timebridge.com/#/meet/freeswitch</font></a></span></p><p><font face="monospace, monospace">Got Bugs? Report them <a href="https://freeswitch.org/jira" target="_blank">here</a>! | Reddit: <a href="https://www.reddit.com/r/freeswitch" target="_blank">/r/freeswitch</a></font></p>
<p><font size="2" face="monospace, monospace"><b>T:</b>+19184209001 | <b>F:</b>+19184209002 | <b>M:</b>+1918424WEST (9378)<br><b>Skype:</b>briankwest</font></p></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
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