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It looks related to how changes are done to a sip message. rtpproxy
is working on incoming message as well as sdpops. Practically,
rtpproxy adds a new line at the end of the incoming sdp. sdopos
deletes from old sdp, resulting in empty lines inside the sdp.<br>
<br>
Can you do the sdpops operation before record_route() and after it
call msg_apply_changes() from textopsx module?<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<div class="moz-cite-prefix">On 06/08/14 17:48, Igor Potjevlesch
wrote:<br>
</div>
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<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">It’s
really linked to the initial SDP. If I have only one codec,
for example G711u (plus telephone-event), and I just keep
G711u, a blank line is inserted.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">If
I keep G711u + telephone-event, everything is working fine.<br>
<br>
Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">Igor.<o:p></o:p></span></p>
<p class="MsoNormal"><a moz-do-not-send="true"
name="_MailEndCompose"><span style="color:#1F497D"
lang="EN-GB"><o:p> </o:p></span></a></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="color:windowtext;mso-fareast-language:FR">De :</span></b><span
style="color:windowtext;mso-fareast-language:FR"> Igor
Potjevlesch [<a class="moz-txt-link-freetext" href="mailto:igor.potjevlesch@gmail.com">mailto:igor.potjevlesch@gmail.com</a>] <br>
<b>Envoyé :</b> mercredi 6 août 2014 17:25<br>
<b>À :</b> <a class="moz-txt-link-abbreviated" href="mailto:miconda@gmail.com">miconda@gmail.com</a>; 'Kamailio (SER) - Users
Mailing List'<br>
<b>Objet :</b> RE: [SR-Users] SDPOPS issue or append_hf<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">Hello Daniel,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">I
got a feedback from the telco in the meantime. He told me
that the issue is the blank line between “rtpmap:8..” and
“nortpproxy”. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">This
parameter is supported. I have successful calls with
“nortpproxy=yes”.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">I
don’t know why sdp_keep_codecs_by_name inserts a blank line
here.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">Igor.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="color:windowtext;mso-fareast-language:FR">De :</span></b><span
style="color:windowtext;mso-fareast-language:FR"> <a
moz-do-not-send="true"
href="mailto:sr-users-bounces@lists.sip-router.org">sr-users-bounces@lists.sip-router.org</a>
[<a moz-do-not-send="true"
href="mailto:sr-users-bounces@lists.sip-router.org">mailto:sr-users-bounces@lists.sip-router.org</a>]
<b>De la part de</b> Daniel-Constantin Mierla<br>
<b>Envoyé :</b> mercredi 6 août 2014 16:42<br>
<b>À :</b> Kamailio (SER) - Users Mailing List<br>
<b>Objet :</b> Re: [SR-Users] SDPOPS issue or append_hf<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">Hello,<br>
<br>
the problem here is with rtpproxy marker -- can you try with
the parameter set to empty string?<br>
<br>
- <a moz-do-not-send="true"
href="http://kamailio.org/docs/modules/stable/modules/rtpproxy.html#idp23856">http://kamailio.org/docs/modules/stable/modules/rtpproxy.html#idp23856</a><br>
<br>
Cheers,<br>
Daniel<span style="font-size:12.0pt;mso-fareast-language:FR"><o:p></o:p></span></p>
<div>
<p class="MsoNormal">On 06/08/14 12:23, Igor Potjevlesch
wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span style="color:#1F497D">Hello,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">To
be sure that the issue is not coming from append_hf, I add
(…,”Call-ID”). The PAI is now inserted after the Call-ID.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">But,
the issue remains:</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">Content-Type:
application/sdp</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">Content-Length:
169</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">v=0</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">o=UserA
1153072414 140968390 IN IP4 A.B.C.D</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">s=Session
SDP</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">c=IN
IP4 A.B.C.D</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">t=0
0</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">m=audio
60412 RTP/AVP 8</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">a=rtpmap:8
PCMA/8000</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">a=nortpproxy:yes</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">This
SDP is dropped. Someone see something missing or wrong in
the SDP parts?<br>
<br>
Regards,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">Igor.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB"> </span><o:p></o:p></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="mso-fareast-language:FR" lang="EN-GB">De :</span></b><span
style="mso-fareast-language:FR" lang="EN-GB"> Igor
Potjevlesch [<a moz-do-not-send="true"
href="mailto:igor.potjevlesch@gmail.com">mailto:igor.potjevlesch@gmail.com</a>]
<br>
<b>Envoyé :</b> </span><span
style="mso-fareast-language:FR">mercredi 6 août 2014
11:57<br>
<b>À :</b> <a moz-do-not-send="true"
href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a><br>
<b>Objet :</b> SDPOPS issue or append_hf</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">Hello,</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">I have an issue with
the module SDPOPS while using “sdp_keep_codecs_by_name”.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">If the calling party
sends only one codec description like:</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">Content-Type:
application/sdp</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">Content-Length: 202</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">v=0</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">o=UserA 2966746938
1790378070 IN IP4 10.141.0.21</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">s=Session SDP</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">c=IN IP4 10.141.0.21</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">t=0 0</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">m=audio 49152 RTP/AVP
8 101</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">a=rtpmap:8 PCMA/8000</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">a=rtpmap:101
telephone-event/8000</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">a=fmtp:101 0-15</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">The result of the
function “sdp_keep_codecs_by_name("PCMA,PCMU,G729a");” is:</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">Content-Type:
application/sdp</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">Content-Length: 170</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">P-Asserted-Identity:
"+0123456789" <<a moz-do-not-send="true"
href="sip:+0123456789@sip.tld">sip:+0123456789@sip.tld</a>></span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">v=0</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">o=UserA 2485672881
3000549892 IN IP4 a.b.c.d</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">s=Session SDP</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">c=IN IP4 a.b.c.d</span><o:p></o:p></p>
<p class="MsoNormal">t=0 0<o:p></o:p></p>
<p class="MsoNormal">m=audio 40330 RTP/AVP 8<o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">a=rtpmap:8 PCMA/8000</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">a=nortpproxy:yes</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">If I open the capture
in Wireshark, the PAI is not in the SDP part, and the end
of the capture after “a=rtpmap:8 PCMA/8000” is seen as
“Data (18 bytes)”.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">I don’t understand why
the PAI is inserted within the SDP part. Adding the PAI is
done after “sdp_keep_codecs_by_name”:</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB"> if
(!is_present_hf("P-Asserted-Identity")) {</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB"> </span>$var(pai)
= $(fU{re.subst,/^0/+33/g});<o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">
append_hf("P-Asserted-Identity: \"$var(pai)\" <<a
moz-do-not-send="true" href="sip:$var%28pai%29@$fd">sip:$var(pai)@$fd</a>>\r\n");</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB"> }</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">I guess that this
cause my INVITE being dropped by 488 Media Not Acceptable
Here.<br>
<br>
Regards,</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">Igor.</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif";mso-fareast-language:FR"><br>
<br>
<o:p></o:p></span></p>
<pre>_______________________________________________<o:p></o:p></pre>
<pre>SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list<o:p></o:p></pre>
<pre><a moz-do-not-send="true" href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a><o:p></o:p></pre>
<pre><a moz-do-not-send="true" href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a><o:p></o:p></pre>
</blockquote>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif";mso-fareast-language:FR"><o:p> </o:p></span></p>
<pre>-- <o:p></o:p></pre>
<pre>Daniel-Constantin Mierla<o:p></o:p></pre>
<pre><a moz-do-not-send="true" href="http://twitter.com/#%21/miconda">http://twitter.com/#!/miconda</a> - <a moz-do-not-send="true" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a><o:p></o:p></pre>
<pre>Next Kamailio Advanced Trainings 2014 - <a moz-do-not-send="true" href="http://www.asipto.com">http://www.asipto.com</a><o:p></o:p></pre>
<pre>Sep 22-25, Berlin, Germany ::: Oct 15-17, San Francisco, USA<o:p></o:p></pre>
</div>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla
<a class="moz-txt-link-freetext" href="http://twitter.com/#!/miconda">http://twitter.com/#!/miconda</a> - <a class="moz-txt-link-freetext" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a>
Next Kamailio Advanced Trainings 2014 - <a class="moz-txt-link-freetext" href="http://www.asipto.com">http://www.asipto.com</a>
Sep 22-25, Berlin, Germany ::: Oct 15-17, San Francisco, USA</pre>
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