&gt; Now I can hackishly fix it with a rewritehostport in the middle. But that<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">

<div>
&gt; will eventually not scale up that nicely. Ergo, does anyone have a good idea<br>
&gt; on how to e.g. have Kamailio in this situation ignore the first uri in the<br>
&gt; route header? Or am I still not getting it :) ?<br>
<br>
</div>you are getting it and the only right fix is to fix the previous proxy<br>
that works incorrectly.  it is very bad idea to start hacking around<br>
these kind of problems.<br>
<br></blockquote><div><br>I was afraid so :) I&#39;ll push a bit on the other proxy supplier, and in the meanwhile force it to work with a rewritehostport. <br><br>Thx for your help<br><br></div></div>