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Hello,<br>
<br>
you are using it with some rtp relay function. Remove the codec,
then do msg_apply_changes() (all this before doing record route),
then do the rtp relaying.<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<div class="moz-cite-prefix">On 07/04/14 12:01, Oliver Roth wrote:<br>
</div>
<blockquote
cite="mid:9314C4E9F7F36E4486505CD44049171734E3A24F@TKEXC-clean.telco.triotel.ch"
type="cite">
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<div class="WordSection1">
<p class="MsoNormal"><span style="color:#1F497D">Here we go<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">IN<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">INVITE
<a class="moz-txt-link-freetext" href="sip:41442742931@81.7.235.180:5060;transport=udp">sip:41442742931@81.7.235.180:5060;transport=udp</a> SIP/2.0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">Via:
SIP/2.0/UDP 82.197.185.185;branch=z9hG4bKa368.02f63ac6.0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">Via:
SIP/2.0/UDP
195.216.67.103:5060;branch=z9hG4bK008082590C36C1313E749FCBA4C6<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">Route:
<a class="moz-txt-link-rfc2396E" href="sip:82.197.185.186;lr=on"><sip:82.197.185.186;lr=on></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">From:
<a class="moz-txt-link-rfc2396E" href="sip:+41446512001@195.216.67.103;user=phone"><sip:+41446512001@195.216.67.103;user=phone></a>;tag=008082590C36C1313BF6EF12E7F2<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">To:
<a class="moz-txt-link-rfc2396E" href="sip:+41442742931@82.197.185.185;user=phone"><sip:+41442742931@82.197.185.185;user=phone></a>;tag=snl_0014532334<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">Call-ID:
<a class="moz-txt-link-abbreviated" href="mailto:e43880005082-533eb654-10953444-55d4a80-6bc5dd@127.0.0.1">e43880005082-533eb654-10953444-55d4a80-6bc5dd@127.0.0.1</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="FR-CH">CSeq:
5466 INVITE<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="FR-CH">Contact:
<a class="moz-txt-link-rfc2396E" href="sip:+41446512001@195.216.67.103:5060"><sip:+41446512001@195.216.67.103:5060></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="FR-CH">Max-Forwards:
69<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="FR-CH">Content-Type:
application/sdp<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="FR-CH">Session-Expires:
1800;refresher=uas<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">Supported:
100rel, timer, replaces<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">Content-Length:
330<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">v=0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">o=-
82545395 2 IN IP4 195.216.67.103<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">s=session<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="FR-CH">t=0
0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="FR-CH">m=audio
4550 RTP/AVP 8 0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">c=IN
IP4 195.216.67.120<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">a=rtpmap:8
PCMA/8000<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="FR-CH">a=rtpmap:0
PCMU/8000<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="FR-CH">a=sendrecv<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="FR-CH">m=image
4552 udptl t38<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="FR-CH">c=IN
IP4 195.216.67.120<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="FR-CH">a=T38FaxVersion:0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="FR-CH">a=T38MaxBitRate:14400<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="FR-CH">a=T38FaxUdpEC:t38UDPRedundancy<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">a=T38FaxRateManagement:transferredTCF<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"><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"><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">OUT
<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">INVITE
<a class="moz-txt-link-freetext" href="sip:41442742931@81.7.235.180:5060;transport=udp">sip:41442742931@81.7.235.180:5060;transport=udp</a> SIP/2.0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">Via:
SIP/2.0/UDP 82.197.185.186;branch=z9hG4bKa368.aca64b5.0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">Via:
SIP/2.0/UDP 82.197.185.185;branch=z9hG4bKa368.02f63ac6.0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">Via:
SIP/2.0/UDP
195.216.67.103:5060;branch=z9hG4bK008082590C36C1313E749FCBA4C6<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">From:
<a class="moz-txt-link-rfc2396E" href="sip:+41446512001@195.216.67.103;user=phone"><sip:+41446512001@195.216.67.103;user=phone></a>;tag=008082590C36C1313BF6EF12E7F2<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">To:
<a class="moz-txt-link-rfc2396E" href="sip:+41442742931@82.197.185.185;user=phone"><sip:+41442742931@82.197.185.185;user=phone></a>;tag=snl_0014532334<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">Call-ID:
<a class="moz-txt-link-abbreviated" href="mailto:e43880005082-533eb654-10953444-55d4a80-6bc5dd@127.0.0.1">e43880005082-533eb654-10953444-55d4a80-6bc5dd@127.0.0.1</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="FR-CH">CSeq:
5466 INVITE<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="FR-CH">Contact:
<a class="moz-txt-link-rfc2396E" href="sip:+41446512001@195.216.67.103:5060"><sip:+41446512001@195.216.67.103:5060></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="FR-CH">Max-Forwards:
68<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="FR-CH">Content-Type:
application/sdp<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="FR-CH">Session-Expires:
1800;refresher=uas<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">Supported:
100rel, timer, replaces<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">Content-Length:
188<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">v=0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">o=-
82545395 2 IN IP4 82.197.185.186<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">s=session<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="FR-CH">t=0
0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="FR-CH">m=audio
64748 RTP/AVP 8 0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">c=IN
IP4 82.197.185.186<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-GB">a=rtpmap:8
PCMA/8000<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">a=rtpmap:0
PCMU/8000<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">a=sendrecv<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">5037682.197.185.186<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><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:DE-CH"
lang="DE">Von:</span></b><span
style="color:windowtext;mso-fareast-language:DE-CH"
lang="DE"> <a class="moz-txt-link-abbreviated" href="mailto:sr-users-bounces@lists.sip-router.org">sr-users-bounces@lists.sip-router.org</a>
[<a class="moz-txt-link-freetext" href="mailto:sr-users-bounces@lists.sip-router.org">mailto:sr-users-bounces@lists.sip-router.org</a>]
<b>Im Auftrag von </b>Daniel-Constantin Mierla<br>
<b>Gesendet:</b> Montag, 7. April 2014 10:40<br>
<b>An:</b> Kamailio (SER) - Users Mailing List<br>
<b>Betreff:</b> Re: [SR-Users] kamailio / rtpproxy -
remove codec<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>
can you give the incoming sdp and outgoing sdp (both as text)
when you are using sdp_remove_media, to see what gets
malformed there?<br>
<br>
Cheers,<br>
Daniel<span
style="font-size:12.0pt;mso-fareast-language:DE-CH"><o:p></o:p></span></p>
<div>
<p class="MsoNormal">On 07/04/14 08:37, Oliver Roth wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal">Hi all<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">We use kamailio 3.3.7
and rtpproxy for enduser call-termination.</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">In case of a fax call,
we get an invite from our carrier for codecs G711a/u and
T38.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">As our termination
carrier does not support T38 and because the invite
contains G711 and T38 we get back error 488.</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">How is it possible to
remove the whole T38 part of this invite?</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">We tried<br>
sdp_remove_codecs_by_name(list) without success – what
“name” should we use for T38? [T38, t38, t.38, T.38, …]<br>
sdp_remove_line_by_prefix(string)<br>
sdp_remove_media(type)</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">None of these
functions did really work – best was the last one with
type=image but then the sip header is malformed.</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">As we saw with
Kamailio version 4.1.x there are a lot of new functions
within sdpops. Would an upgrade help?</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">So basically the
question is:</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">How to remove the t38
part of the fax invite? (see attachment)</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">KR,</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">Oli</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:DE-CH"><br>
</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"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif";mso-fareast-language:DE-CH"><br>
<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"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif";mso-fareast-language:DE-CH"><br>
<br>
<o:p></o:p></span></p>
<pre>-- <o:p></o:p></pre>
<pre>Daniel-Constantin Mierla - <a moz-do-not-send="true" href="http://www.asipto.com">http://www.asipto.com</a><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>Kamailio World Conference - April 2-4, 2014, Berlin, Germany<o:p></o:p></pre>
<pre><a moz-do-not-send="true" href="http://www.kamailioworld.com">http://www.kamailioworld.com</a><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://www.asipto.com">http://www.asipto.com</a>
<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 World Conference - April 2-4, 2014, Berlin, Germany
<a class="moz-txt-link-freetext" href="http://www.kamailioworld.com">http://www.kamailioworld.com</a></pre>
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