An already ended call will have no matching dialog/transaction existing in P1. So, &quot;malicious&quot; BYEs are treated as non-existent dialog/transactions. I doubt if it even makes it to the proxy core as it would be discared by the transaction layer itself. <br>
<br><br><div class="gmail_quote">On Feb 8, 2008 11:54 AM, Iņaki Baz Castillo &lt;<a href="mailto:ibc@in.ilimit.es">ibc@in.ilimit.es</a>&gt; wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div class="Ih2E3d">On Friday 08 February 2008 17:17:08 Iņaki Baz Castillo wrote:<br><br>&gt; How to avoid it? how to avoid anyone sending a malicious BYE with From&amp;To<br>&gt; tags and Call-ID from any other already ended call?<br>
<br></div>Maybe the only solution is using a B2BUA for accounting that only performs an<br>UPDATE action when receiving a BYE if the dialog really exist?<br><div><div></div><div class="Wj3C7c"><br><br>--<br>Iņaki Baz Castillo<br>
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