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<p class="MsoNormal"><span lang="EN-US">Hi all,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">We are using kamailio 5.1.6, configured as P-CSCF, facing following problem. Please indicate, if you need further information – e.g. I could provide a tshark trace.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">If during call setup (by simulated UAs) at the terminating P-CSCF the simulated PCRF rejects the Diameter AAR message, then the kamailio P-CSCF runs into a questionable behaviour.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">By calling the Rx_AAR() function in configuration, the processing of the 200 OK is suspended (by the ims_qos module) and then resumed with the receipt of the AAA message.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Now the ims_dialog module is called with the dlg_terminate(“all”, “reason”) function, but the 200 OK has not yet been sent. The ims_dialog sends CANCEL downstream and 488 upstream. However, the 200 OK is sent additionally.
We would rather have expected the ims_dialog module should send BYE in both directions.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">When we respond the CANCEL with 481 Call/Transaction does not exist (which we MUST according to RFC 3261), then we would expect the ims_dialog module at least now to react with BYE in both directions.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Could you help? What’s our misunderstanding? How could we proceed to get this issue fixed?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Kind regards<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Christoph<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">P.S.: This is a retransmission, because the original message did not pass moderator approval due to the attached tshark trace<o:p></o:p></span></p>
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