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<p>Hello,</p>
<p>are you executing rtpengine_manage() before or after removing the
codec?</p>
<p>Cheers,<br>
Daniel<br>
</p>
<br>
<div class="moz-cite-prefix">On 16/11/16 10:03, Oliver Roth wrote:<br>
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<p class="MsoNormal">Hi there<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">I have the following
problem – I need to remove a codec in the initial INVITE.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">This happens since I
changed from rtpproxy to rtpengine. I changed all
rtpproxy_manage() to rtpengine_manage().<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Originating INVITE with
the “clearmode” <o:p>
</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">m=audio 9196 RTP/AVP 8 0
125 101 <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">a=rtpmap:0 PCMU/8000 <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">a=rtpmap:8 PCMA/8000 <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">a=rtpmap:125
CLEARMODE/8000 <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">a=rtpmap:101
telephone-event/8000<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I do the following in
the config<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">route[SDP] {<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> xlog(,
"L_INFO", "SDP: request method $rm");<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> # remove
CLEARMODE if Colt<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
if($avp(s:todirection) =~"^MyCarrier+") {<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
if (is_method("INVITE")) {<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
xlog(, "L_INFO", "SDP remove: request method $rm");<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
msg_apply_changes();<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
sdp_remove_codecs_by_name("CLEARMODE");<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
#sdp_remove_codecs_by_id("125");<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
}<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> }<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">}<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">This block gets hit as I
can see with the xlog entry.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">In the sent INVITE the
“Clearmode” is still in the sdp header<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">a=rtpmap:0 PCMU/8000<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">a=rtpmap:8 PCMA/8000<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">a=rtpmap:125
CLEARMODE/8000<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">a=rtpmap:101
telephone-event/8000<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">So with rtpproxy – it
worked<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">With rtpengine not any
more …<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Any idea?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">KR,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Oli<o:p></o:p></span></p>
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<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>
Kamailio Advanced Training, Berlin, Nov 28-30, 2016 - <a class="moz-txt-link-freetext" href="http://www.asipto.com">http://www.asipto.com</a></pre>
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