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You are right, different IPs are involved on PSTN side. So you think freeswitch is ending audio to the wrong IP ? But, if I look at network packets leaving my freeswitch server, I can't see any RTP. You can see my network capture here <a href="https://rcpt.yousendit.com/978754413/751404552085a1a09ea574cb819a5f74">https://rcpt.yousendit.com/978754413/751404552085a1a09ea574cb819a5f74</a> <br>NAT is not involved on my freeswitch server. I'm not using STUN. <br><br>Regards,<br>Tidiane<br>&gt; Date: Sat, 30 Oct 2010 04:21:10 +0200<br>&gt; From: Prometheus001@gmx.net<br>&gt; To: freeswitch-users@lists.freeswitch.org<br>&gt; Subject: Re: [Freeswitch-users] no audio when originate to 2 PSTNs<br>&gt; <br>&gt; Looking at the SDP I can see that a number of different IPs are<br>&gt; involved. Seems that Audio goes to the wrong IP. But it's hard to<br>&gt; determine if no details are there about the callflow between the<br>&gt; involved components (IPs).<br>&gt; Is NAT involved?<br>&gt; You may use STUN?<br>&gt; <br>&gt; Best regards<br>&gt; Peter<br>&gt; <br>&gt; Tidiane Sy schrieb:<br>&gt; &gt; Hi all,<br>&gt; &gt; When I do an originate between two PSTNS, the two telephones ring. But<br>&gt; &gt; when both answer, there is no audio.<br>&gt; &gt; I have audio when the originate is between an sip client and a PSTN.<br>&gt; &gt; My freeswitch is not natted<br>&gt; &gt; my console logs here: http://pastebin.freeswitch.org/14351<br>&gt; &gt; my network capture here:<br>&gt; &gt; https://rcpt.yousendit.com/978754413/751404552085a1a09ea574cb819a5f74<br>&gt; &gt;<br>&gt; &gt; Your help will be really appreciated<br>&gt; &gt;<br>&gt; &gt; Tid<br>&gt; &gt; ------------------------------------------------------------------------<br>&gt; &gt;<br>&gt; &gt; _______________________________________________<br>&gt; &gt; FreeSWITCH-users mailing list<br>&gt; &gt; FreeSWITCH-users@lists.freeswitch.org<br>&gt; &gt; http://lists.freeswitch.org/mailman/listinfo/freeswitch-users<br>&gt; &gt; UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users<br>&gt; &gt; http://www.freeswitch.org<br>&gt; &gt;   <br>&gt; <br>&gt; _______________________________________________<br>&gt; FreeSWITCH-users mailing list<br>&gt; FreeSWITCH-users@lists.freeswitch.org<br>&gt; http://lists.freeswitch.org/mailman/listinfo/freeswitch-users<br>&gt; UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users<br>&gt; http://www.freeswitch.org<br>                                               </body>
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