Hi all,
We are using kamailio 5.1.6, configured as P-CSCF, facing following problem. Please refer
to the attached tshark trace, too.
If during call setup (by simulated UAs) at the terminating P-CSCF the simulated PCRF
rejects the Diameter AAR message (frame 46/47 at the attached trace), then the kamailio
P-CSCF runs into a questionable behaviour.
By calling the Rx_AAR() function in configuration, the processing of the 200 OK (frame 45)
is suspended (by the ims_qos module) and then resumed with the receipt of the AAA message
(frame 47).
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.
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.
Could you help? What's our misunderstanding? How could we proceed to get this issue
fixed?
Kind regards
Christoph
____
Christoph VALENTIN
Software Developer | R&D
Core / SIP Core
P +43 50 811 3785 | M +43 664 628 3785
christoph.valentin@kapsch.net<mailto:christoph.valentin@kapsch.net>
Kapsch CarrierCom AG | Lehrbachgasse 11 | 1120 Vienna | Austria
Company Register at: Commercial Court Vienna FN 223804 z | Registered Office Vienna |
www.kapsch.net<http://www.kapsch.net/>
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