Can you provide SIP trace of the call on FS and ZyXEL? That may provide some details of the problem.<div><br></div><div>I remembered a similar problem i faced with an ITSP in Pakistan, and after tracing problem for a couple days i found that they were using User Agent filter to allow calls only from their &quot;preferred&quot; devices. So, we had to hack that to get it working with FS,</div>

<div><br></div><div><a href="http://wiki.freeswitch.org/wiki/Sofia_Configuration_Files#user-agent-string">http://wiki.freeswitch.org/wiki/Sofia_Configuration_Files#user-agent-string</a></div><div><br></div><div>Thank you.</div>

<div><br><br><div class="gmail_quote">On Sun, Feb 17, 2013 at 5:33 PM, Johan Helsingius <span dir="ltr">&lt;<a href="mailto:julf@julf.com" target="_blank">julf@julf.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

<div class="im">&gt; If they are rejecting it, I&#39;d ask them why.<br>
<br>
</div>I did.<br>
<br>
&quot;What equipment are you using?&quot;<br>
&quot;freeswitch&quot;<br>
&quot;we don&#39;t support that&quot;<br>
<div class="im"><br>
&gt; Are you bridging to sofia/gateway/telfort ?<br>
<br>
</div>Yes.<br>
<div class="im"><br>
&gt; Also, if you changed the password on the gateway, did you killgw the old load<br>
&gt; and restart it? reloadxml doesn&#39;t restart gateways that are already connected.<br>
<br>
</div>I restarted freeswitch.<br>
<div class="HOEnZb"><div class="h5"><br>
        Julf<br>
<br>
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