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Yeah, sorry, missed that one .<br>
<br>
Well, it seems that OmniPCX is doing late SDP negotiation (via 200OK
+ ACK, instead of INVITE+200OK) and the tutorial script does not
handle this case (for simplicity and clarity reasons).<br>
<br>
So, right now the RTPengine interaction (the offer and answer) are
done at INVITE and 200 OK time.<br>
<br>
You have to change a bit the OpenSIPS script to move the offer and
answer on 200 OK and ACK if the INVITE has no SDP attached.<br>
<br>
Let me know if you need any assistance.<br>
<br>
Regards,<br>
<pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a>
OpenSIPS Bootcamp 2017, Houston, US
<a class="moz-txt-link-freetext" href="http://opensips.org/training/OpenSIPS_Bootcamp_2017.html">http://opensips.org/training/OpenSIPS_Bootcamp_2017.html</a>
</pre>
<div class="moz-cite-prefix">On 07/04/2017 06:22 PM, Alex
Megalokonomos wrote:<br>
</div>
<blockquote
cite="mid:CALwx21owDbiFQ2jzzrvUMoYrA92uexjegN-hdbAhxLkTpkZwiQ@mail.gmail.com"
type="cite">
<div dir="ltr"><img moz-do-not-send="true" class="mailtrack-img"
style="float:right;" alt=""
src="https://mailtrack.io/trace/mail/3b2f84b07dfe86fc82224abf7b2cd58ee29ab86a.png?u=1422671"
height="0" width="0">As you may have noticed in my last reply,
I reached that far as well but got stuck later on on what
appears to be the rtp engine configuration.
<div><br>
</div>
<div>Not strictly an Opensips issue but you might be able to
help me.<br>
</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Tue, Jul 4, 2017 at 6:07 PM,
Bogdan-Andrei Iancu <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:bogdan@opensips.org"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:bogdan@opensips.org">bogdan@opensips.org</a></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"> <tt>Hi Alex,<br>
<br>
Thank you for the offlist provided data. Shortly, the
ACK received by OpenSIPS from OmniPCX is broken as it is
missing all the Route headers. According to the pcap, it
looks like:<span class=""><br>
<br>
ACK <a moz-do-not-send="true"
class="m_-865090424726876519moz-txt-link-freetext">sip:udoioiia@10.0.1.106:49246;<wbr>transport=ws</a>
SIP/2.0<br>
Record-Route: <a moz-do-not-send="true"
class="m_-865090424726876519moz-txt-link-rfc2396E"><sip:10.0.1.200:5059;ftag=<wbr>d5de999de446df5165d773dac1f369<wbr>ec;lr=on></a><br>
Contact: "Megalokonomos A." <a moz-do-not-send="true"
class="m_-865090424726876519moz-txt-link-rfc2396E"><sip:694@10.0.1.200:45698></a><br>
User-Agent: OxO_SPG_103/012.001<br>
Content-Type: application/sdp<br>
To: <a moz-do-not-send="true"
class="m_-865090424726876519moz-txt-link-freetext">sip:694@10.0.1.200;tag=<wbr>4em4m1ah9r</a><br>
From: "Megalokonomos A." <a moz-do-not-send="true"
class="m_-865090424726876519moz-txt-link-rfc2396E"><sip:610@10.0.1.200></a>;tag=<wbr>d5de999de446df5165d773dac1f369<wbr>ec<br>
Call-ID: <a moz-do-not-send="true"
class="m_-865090424726876519moz-txt-link-abbreviated"
href="mailto:af3cc9085db1c8dd86050eb91d747249@10.0.1.200"
target="_blank">af3cc9085db1c8dd86050eb91d7472<wbr>49@10.0.1.200</a><br>
CSeq: 659214613 ACK<br>
Via: SIP/2.0/UDP
10.0.1.200:5059;branch=<wbr>z9hG4bKf3de.<wbr>2fc1fc65cece765af47f9baf8bf090<wbr>6e.0;i=c<br>
Via: SIP/2.0/TCP
10.0.1.200:5080;rport=45698;<wbr>branch=<wbr>z9hG4bK89fca3417cd4e227b431514<wbr>5d96657c7<br>
Max-Forwards: 69<br>
Content-Length: 2960<br>
<br>
</span> v=0<br>
o=default 14<br>
.....<br>
<br>
<br>
As OpenSIPS does not find the Route (former
Record-Route) it inserted into the dialog, the routing
logic in the script does not work as expected. According
to RFC3261, the RR headers MUST be mirrored back in 2xx
replies.<br>
<br>
Let's try to hack to cope with the broken SIP stack on</tt><tt><tt>
OmniPCX. In script you have something like:<br>
<br>
</tt></tt>
<pre class="m_-865090424726876519escaped"> } else {
# ACK without matching transaction ->
# ignore and discard
exit;
}
Try replacing it with
} else {
# ACK without matching transaction ->
# ignore and discard
t_relay();
exit;
}
Let's see if this does the trick. If yes, I can suggest a even better way to fix the broken signaling, using the dialog support in OpenSIPS.
Best regards,
</pre>
<span class="">
<pre class="m_-865090424726876519moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a moz-do-not-send="true" class="m_-865090424726876519moz-txt-link-freetext" href="http://www.opensips-solutions.com" target="_blank">http://www.opensips-solutions.<wbr>com</a>
OpenSIPS Bootcamp 2017, Houston, US
<a moz-do-not-send="true" class="m_-865090424726876519moz-txt-link-freetext" href="http://opensips.org/training/OpenSIPS_Bootcamp_2017.html" target="_blank">http://opensips.org/training/<wbr>OpenSIPS_Bootcamp_2017.html</a>
</pre>
</span><div><div class="h5"><div class="m_-865090424726876519moz-cite-prefix">On 07/03/2017 01:08 PM, Bogdan-Andrei
Iancu wrote:
</div>
<blockquote type="cite">
<tt>Hi Alex,
As suspected, the ACK is not properly routed - see the
retransmissions of the 200OK + ACK. SImply based on the logs I
cannot see what the problem is - probably some missing
fix_nated_contact() for the replies coming from the WS party.
Please make a pcap capture + opensips log (level 4) and send
them to me *offlist* !
Best regards,
</tt>
<pre class="m_-865090424726876519moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a moz-do-not-send="true" class="m_-865090424726876519moz-txt-link-freetext" href="http://www.opensips-solutions.com" target="_blank">http://www.opensips-solutions.<wbr>com</a>
OpenSIPS Bootcamp 2017, Houston, US
<a moz-do-not-send="true" class="m_-865090424726876519moz-txt-link-freetext" href="http://opensips.org/training/OpenSIPS_Bootcamp_2017.html" target="_blank">http://opensips.org/training/<wbr>OpenSIPS_Bootcamp_2017.html</a>
</pre>
<div class="m_-865090424726876519moz-cite-prefix">On 06/30/2017 05:37 PM, Alex
Megalokonomos wrote:
</div>
<blockquote type="cite">
<div dir="ltr"><img moz-do-not-send="true" class="m_-865090424726876519mailtrack-img" style="float:right" alt="" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" height="0" width="0">I have attached the debug log so you
get a fuller picture. I hope that's ok
<div>
</div>
<div>(Incoming call to WS client 694 is the WS extension...610
is my normal desk phone which is connected to OmniPCX)
(10.0.1.63-> OpenSIPS ,10.0.1.200-> OmniPCX)
<div>
</div>
<div>
</div>
</div>
</div>
<div class="gmail_extra">
</div></blockquote></blockquote></div></div></div></blockquote></div></div></blockquote>
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