Agree on STUN, <br><br>most NAT problems can be resolved without it, freeswitch can handle phones behind NAT nicely.<br><br>Make traces (tcpdump) at server and phone network, check all RTP streams find where it get blocked (misdirected).  most likely it is network related problem.<br>
<br><br><br><div class="gmail_quote">On Tue, Jan 10, 2012 at 8:51 AM, Bob Smith <span dir="ltr">&lt;<a href="mailto:gb10hkzo-freeswitch@yahoo.co.uk">gb10hkzo-freeswitch@yahoo.co.uk</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Because by all accounts, judging by the Wiki Entry, usign a public server is not really a wise thing to do in production  .... the &quot; <a href="http://dumbme.mbit.com.au/trixbox/stun_servers.htm" target="_blank">http://dumbme.mbit.com.au/trixbox/stun_servers.htm</a>&quot; link on teh Wiki is broken, and the Wiki also says &quot;Note: <a href="http://stun.fwd.org" target="_blank">stun.fwd.org</a> is gone; also <a href="http://stun.freeswitch.org" target="_blank">stun.freeswitch.org</a> is never guaranteed to be up and running so use it in production at your own risk.&quot;....  so I can only assume that most public servers are similarly provided on a &quot;best endeavours&quot; basis and prone to disappear at any time.<br>

<br>
Further, I now have an IPsec VPN between me and the firewall, hence eliminating NAT concerns, and I am still seeing the same issues as originally described with things partially working (even with Any/Any rules applied to firewalls).<br>

<br>
<br>
&gt;Why not pick up a public stun server and config it in your softphone, most<br>
&gt;likely it will address your issue.<br>
<br>
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