<div dir="auto">use t_relay wih 0x2 option.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Aug 17, 2020, 15:16 Callum Guy <<a href="mailto:callum.guy@x-on.co.uk">callum.guy@x-on.co.uk</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi All,<br><div><br></div><div>Using OpenSIPs 3.0.3</div><div><br></div><div>I'm dealing with a client device with a faulty network, they are using a softphone WebRTC client and the TCP connections disappear sporadically.</div><div><br></div><div>When the media server issues a RE-INVITE session timer OpenSIPs discovers the closed TCP connection and returns 477 to the media server. In this case the media server is FreeSWITCH which promptly ignores the non-standard session timer response and the call hangs. I want to close the call immediately in this situation as there is no way I can see to reestablish the connection. The call is typically bridged on the media server so the other call leg is left dangling indefinitely so I need to find a way to kill the session.</div><div><br></div><div>Reading <a href="https://tools.ietf.org/html/rfc4028#section-10" target="_blank" rel="noreferrer">RFC4028</a> the only response codes that should trigger a BYE are 408/481 so my aim is to intercept the 477 and alter it. Unfortunately I have been unable to intercept it within my OpenSIPs config as the messages don't hit failure_route or similar. Am I missing a trick? Is there somewhere where these can be intercepted or should I be looking into a solution on the media server instead?</div><div><br></div><div>Many thanks,</div><div><br></div><div>Callum</div></div>
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