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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>You could temporarily change rtp.conf to use just 4 ports (say 10001-10004) and monitor 10001 and 10002. On a production system you would have to do something with a tool like netstat to try and predict which ports in the range would be used.<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 #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com] <b>On Behalf Of </b>ISABEL ORDAS ARNAL<br><b>Sent:</b> Thursday, October 20, 2011 8:28 AM<br><b>To:</b> asterisk-users@lists.digium.com<br><b>Subject:</b> [asterisk-users] RTP ports used by Asterisk in dialplan<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Dear all, <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Do you know if there is a way to know the 2 RTP ports that Asterisk is using for audio flow in a call in the dialplan?<o:p></o:p></p><p class=MsoNormal>I would like to launch a Linux shell command “tcpdump” to capture audio flow in those 2 RTP ports before call starts and stop capturing at the end of the call. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Regards,<o:p></o:p></p><p class=MsoNormal>Isabel<o:p></o:p></p><p class=MsoNormal><span lang=ES style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p><div class=MsoNormal align=center style='text-align:center'><span lang=ES style='font-size:12.0pt;font-family:"Times New Roman","serif"'><hr size=2 width="100%" align=center></span></div><p class=MsoNormal><span lang=ES style='font-size:7.5pt;font-family:"Arial","sans-serif";color:gray'>Este mensaje se dirige exclusivamente a su destinatario. Puede consultar nuestra política de envío y recepción de correo electrónico en el enlace situado más abajo.<br>This message is intended exclusively for its addressee. We only send and receive email on the basis of the terms set out at.<br><a href="http://www.tid.es/ES/PAGINAS/disclaimer.aspx">http://www.tid.es/ES/PAGINAS/disclaimer.aspx</a></span><span lang=ES style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p></div></body></html>