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</o:shapelayout></xml><![endif]--></head><body lang=FR link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Hello,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'>I have seen that the problem can occur due to the kernel limitation.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'>So, I have changed the local_port range to be sure that they include the port range of RTPProxy.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'>But, I still not explain this limitation. Because, even with the kernel limitation, they should be have sufficient number of ports to allocate.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'>Any idea? Thanks.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'><br>Regards,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'>Igor.<o:p></o:p></span></p><p class=MsoNormal><a name="_MailEndCompose"><span lang=EN-GB style='color:#1F497D'><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='mso-fareast-language:FR'>De :</span></b><span style='mso-fareast-language:FR'> Igor Potjevlesch [mailto:igor.potjevlesch@gmail.com] <br><b>Envoyé :</b> lundi 27 octobre 2014 12:21<br><b>À :</b> sr-users@lists.sip-router.org<br><b>Objet :</b> RE: rtpproxy_manage fails to rewrite SDP<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'>Hello,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'>In addition: the behaviour looks to occur when there is many calls to be treated.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'>Looking at /var/log/messages, I can see thousand of this message:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'>incorrect port 0 in reply from rtp proxy<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'>At this time, where the flow is more low, no more errors and every calls are properly rewritten.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'>Regards,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'>Igor.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB 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 lang=EN-GB style='mso-fareast-language:FR'>De :</span></b><span lang=EN-GB style='mso-fareast-language:FR'> Igor Potjevlesch [</span><span style='mso-fareast-language:FR'><a href="mailto:igor.potjevlesch@gmail.com"><span lang=EN-GB>mailto:igor.potjevlesch@gmail.com</span></a></span><span lang=EN-GB style='mso-fareast-language:FR'>] <br><b>Envoyé :</b> lundi 27 octobre 2014 11:47<br><b>À :</b> </span><span style='mso-fareast-language:FR'><a href="mailto:sr-users@lists.sip-router.org"><span lang=EN-GB>sr-users@lists.sip-router.org</span></a></span><span lang=EN-GB style='mso-fareast-language:FR'><br><b>Objet :</b> rtpproxy_manage fails to rewrite SDP<o:p></o:p></span></p></div></div><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>Hello,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>I’m working with rtpproxy module for managing calls to a particular route.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB>The thing is that for some calls, the “Connection information” is not rewritten properly whereas another calls, less than 1 second before or after, are properly rewritten.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>When “cr_route” defines that the call must be route to this carrier, I go to a route in order to make some change: <o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo2'><![if !supportLists]><span lang=EN-GB><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-GB>Keep only PCMA, PCMU, G729a and telephone-event<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo2'><![if !supportLists]><span lang=EN-GB><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-GB>Depends on the R-URI: <o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:72.0pt;text-indent:-18.0pt;mso-list:l0 level2 lfo2'><![if !supportLists]><span lang=EN-GB style='font-family:"Courier New"'><span style='mso-list:Ignore'>o<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-GB>If the uri contains IP addresses or domain name of the carrier: rtpproxy_manage("iefrcoz20","<CARRIER_IP_ADDRESS");<o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:72.0pt;text-indent:-18.0pt;mso-list:l0 level2 lfo2'><![if !supportLists]><span lang=EN-GB style='font-family:"Courier New"'><span style='mso-list:Ignore'>o<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-GB>else : rtpproxy_manage("eifrcoz20");<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>Kamailio listens on <CARRIER_IP_ADDRESS> and also on an internal one.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB>A dedicated instance of RTPProxy runs with the following option: “-l <INTERNAL_IP_ADDRESS>/<CARRIER_IP_ADDRESS>”.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>The idea is to tell to my customers to send their RTP to the internal IP address, and to tell to the carrier to send the RTP to the IP address that they have attributed to me.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>For hundred and hundred calls, this mechanism is working fine. But sometimes, no, the SDP remains as the original one.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>I don’t know how to diagnose this. Could it be a saturation of RTPProxy?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>Regards,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>Igor.<o:p></o:p></span></p></div></body></html>