<div>Hello everyone,</div><div><br></div><div>This certain SIP UAS keeps on sending "SIP/2.0 403" messages to my OpenSIPS machine out of blue, this failure/warning messages has nothing to do with this certain client on the call. I wanted to figure out how to drop ("not proxy") that annoying non-transactional 4XX SIP Messages being routed through this proxy server, however I couldn't figure out where to get this message landed to my routing script. Because the fact that this requests wasn't initially sent by proxy, it will not land to the "failure_route" routing block.</div>
<div><br></div><div>In summary, how can I configure OpenSIPS routing logic to handle the non-transactional 4XX request sent by someone else out of blue?</div><div><br></div><div>Thanks,</div><div>Jason</div>