What&#39;re you trying to achieve?<div><br></div><div>The FS NAT handling should take care of clients that send the wrong (internal) IP in the SDP.</div><div><br></div><div>FS will return its public IP in the returned SDP, they then send from their RTP port to the FS port. FS will see the IP/port the packets are arriving from (the external side of their NAT) and auto-adjust to sending packets to there. You&#39;ll see a auto-adjusting rtp log message when that happens. That can&#39;t happen until they send media though, which can cause a problem during call setup, eg for ringback.</div>

<div><br></div><div>FS behind NAT would be slightly different, there are multiple options there including the ext-rtp-ip param.</div><div><br></div><div>For rewriting packets it&#39;s worth bearing in mind that FS is a B2BUA, not a SIP proxy.</div>

<div><br></div><div>Rewriting the SDP is possible from the dialplan, but I have no experience in that. <a href="http://wiki.freeswitch.org/wiki/Codec_negotiation#Rewriting_SDP">http://wiki.freeswitch.org/wiki/Codec_negotiation#Rewriting_SDP</a></div>

<div><br></div><div>-Steve</div><div><br><div><br><br><div class="gmail_quote">On 19 November 2012 14:45, Phil Quesinberry <span dir="ltr">&lt;<a href="mailto:philq@qsystemsengineering.com" target="_blank">philq@qsystemsengineering.com</a>&gt;</span> wrote:<br>

<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><u></u>






<div>


<p dir="LTR"><span lang="en-us"><font face="Calibri">Is there a way to get FreeSWITCH to rewrite the</font></span><span lang="en-us"> <font face="Calibri">media address as well as the contact head</font></span><span lang="en-us"><font face="Calibri">er info</font></span><span lang="en-us"><font face="Calibri"></font></span><span lang="en-us"> <font face="Calibri">coming from connected endpoints</font></span><span lang="en-us"><font face="Calibri">?  With the proper settings,</font></span><span lang="en-us"> <font face="Calibri">FS does a great job of taking care of just about any NAT-related issue on the SIP side, but</font></span><span lang="en-us"> <font face="Calibri">going through the documentation I</font></span><span lang="en-us"><font face="Calibri">’</font></span><span lang="en-us"><font face="Calibri">ve been unable to find a</font></span><span lang="en-us"><font face="Calibri"> way to get it to touch the SDP. </font></span><span lang="en-us"> <font face="Calibri">Is there a setting to get it to use the same address for</font></span><span lang="en-us"> <font face="Calibri">media</font></span><span lang="en-us"><font face="Calibri">?</font></span></p>



<p dir="LTR"><span lang="en-us"><font face="Calibri">Thanks,</font></span><span lang="en-us"></span></p>

<p dir="LTR"><span lang="en-us"><i></i></span><span lang="en-us"><i></i></span><i><span lang="en-us"></span></i><i><span lang="en-us"><font face="Times New Roman">Phil Quesinberry</font></span></i><span lang="en-us"></span><span lang="en-us"></span><span lang="en-us"></span></p>



<p dir="LTR"><span lang="en-us"><font face="Arial">Q Systems Engineering, Inc.</font></span></p>

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<p dir="LTR"><span lang="en-us"><i></i></span><span lang="en-us"><i></i></span><i><span lang="en-us"></span></i><i><span lang="en-us"><font color="#1F497D" face="Arial">Improve your business telephone services and save money</font></span></i><span lang="en-us"></span><span lang="en-us"></span><span lang="en-us"></span></p>



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<p dir="LTR"><span lang="en-us"></span><a href="http://www.qsystemsengineering.com/" target="_blank"><span lang="en-us"></span><span lang="en-us"><u></u></span><u><span lang="en-us"></span></u><u><span lang="en-us"><font color="#0000FF" face="Arial">http://www.qsystemsengineering.com</font></span></u><span lang="en-us"></span></a><span lang="en-us"></span><span lang="en-us"></span><span lang="en-us"></span></p>



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