An already ended call will have no matching dialog/transaction existing in P1. So, "malicious" 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.
On Feb 8, 2008 11:54 AM, Iñaki Baz Castillo ibc@in.ilimit.es wrote:
On Friday 08 February 2008 17:17:08 Iñaki Baz Castillo wrote:
How to avoid it? how to avoid anyone sending a malicious BYE with
From&To
tags and Call-ID from any other already ended call?
Maybe the only solution is using a B2BUA for accounting that only performs an UPDATE action when receiving a BYE if the dialog really exist?
-- Iñaki Baz Castillo ibc@in.ilimit.es
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