Hello,<div><br></div><div> I am running into a problem where I am experiencing duplicated INVITE's being originated from Kamailio proxy.</div><div><br></div><div><div>U 2011/12/13 23:58:17.543802 KAMAILIO:5060 -> PSTN:5060</div>
<div>INVITE sip:URI@PSTN SIP/2.0.</div></div><div><br></div><div><div>U 2011/12/13 23:58:17.543840 KAMAILIO:5060 -> PSTN:5060</div><div>INVITE sip:URI@PSTN SIP/2.0.</div></div><div><br></div><div>As you can see that the timestamp between the two invites is literally a fraction of seconds.</div>
<div><br></div><div>There is no failure condition that is causing this with append_branch</div><div><br></div><div>There is no retransmission timer issue that is causing this (using default timing):</div><div><br></div><div>
modparam("tm", "retr_timer1", 500)</div><div>modparam("tm", "retr_timer2", 4000)</div><div><br></div><div>Any thoughts / ideas - as this is causing a race condition in which there is a 200 OK that is being sent back from upstream -- and we are then CANCELING the 2nd INVITE which is essentially causing on overall problem with the call.</div>
<div><br></div><div>Thanks for all help / thoughts / input in advance, thanks!</div><div><br></div><div>Sincerely,</div><div>Brandon Armstead</div>