<p>Post a SIP trace here of your Panasonic phone trying to register with your fs box here first.</p>
<div class="gmail_quote">On 2012-02-22 5:30 AM, &quot;Lloyd Aloysius&quot; &lt;<a href="mailto:lloyd.aloysius@gmail.com">lloyd.aloysius@gmail.com</a>&gt; wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<font face="verdana, sans-serif">Hi All,</font>
<div><font face="verdana, sans-serif"><br></font></div><div><font face="verdana, sans-serif">I could not make the Panasonic KX-TGP500B04 behind the NAT. I have all the other phones in the same network no issues. Does any one have a working configuration for the FreeSWITCH and Panasonic KX-TGP500B04?</font></div>


<div><font face="verdana, sans-serif"><br></font></div><div><font face="verdana, sans-serif">Is something to do with the source port. </font><span style="font-family:verdana,sans-serif">Panasonic KX-TGP500B04 always say <b>&quot;Registering&quot;</b> but never registered.</span></div>


<div><span style="font-family:verdana,sans-serif"><br></span></div><div><span style="font-family:verdana,sans-serif">Thanks</span></div><div><span style="font-family:verdana,sans-serif">Lloyd</span></div>
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<br></blockquote></div>