Description

This is the same test case as I used for bug Report #1160

I used kamailio as an scscf (based on the configuration files from kamailio/examples/scscf)
I did some changes according to my needs
I did some Basic tests - the results were satisfying --> OK
I configured a distinct PSI on the HSS (sip:04321234501@vict-ims.net) --> OK
I registered some user from a Zoiper Client --> OK
I told zoiper to call sip:04321234501@vict-ims.net --> I received 555 AS Contacting Failed - iFC terminated dialog

Troubleshooting

For some reason, the ims_isc module cannot deliver the Initial INVITE to the AS.
First I thought, there was a bug in TM module, however there was no bug in TM module (please find the Explanation in issue #1160)

The ims_isc module issues a CRITICAL log:

File 2017_06_20_distinct_psi_03_scscf_kamailio.log:
Line 642 - 660:
Jun 20 16:14:12 vict-ims /usr/local/sbin/kamailio[108125]: INFO: ims_registrar_scscf [cxdx_avp.c:138]: cxdx_get_avp(): cxdx_get_experimental_result_code: Failed finding avp
Jun 20 16:14:12 vict-ims /usr/local/sbin/kamailio[108125]: INFO: ims_registrar_scscf [cxdx_sar.c:84]: create_return_code(): created AVP successfully : [saa_return_code] - [1]
Jun 20 16:14:12 vict-ims /usr/local/sbin/kamailio[108125]: ERROR: *** cfgtrace:failure_route=[UNREG_SAR_REPLY] c=[/usr/local/etc/kamailio-scscf/kamailio-scscf-routes.cfg] l=127 a=26 n=xlog
Jun 20 16:14:12 vict-ims /usr/local/sbin/kamailio[108125]: ERROR: *** cfgtrace:failure_route=[UNREG_SAR_REPLY] c=[/usr/local/etc/kamailio-scscf/kamailio-scscf-routes.cfg] l=143 a=21 n=switch
Jun 20 16:14:12 vict-ims /usr/local/sbin/kamailio[108125]: ERROR: *** cfgtrace:failure_route=[UNREG_SAR_REPLY] c=[/usr/local/etc/kamailio-scscf/kamailio-scscf-routes.cfg] l=130 a=26 n=xlog
Jun 20 16:14:12 vict-ims /usr/local/sbin/kamailio[108125]: ERROR: *** cfgtrace:failure_route=[UNREG_SAR_REPLY] c=[/usr/local/etc/kamailio-scscf/kamailio-scscf-routes.cfg] l=131 a=5 n=route
Jun 20 16:14:12 vict-ims /usr/local/sbin/kamailio[108125]: ERROR: *** cfgtrace:failure_route=[term] c=[/usr/local/etc/kamailio-scscf/kamailio-scscf-routes.cfg] l=673 a=26 n=xlog
Jun 20 16:14:12 vict-ims /usr/local/sbin/kamailio[108125]: ERROR: *** cfgtrace:failure_route=[term] c=[/usr/local/etc/kamailio-scscf/kamailio-scscf-routes.cfg] l=675 a=24 n=t_newtran
Jun 20 16:14:12 vict-ims /usr/local/sbin/kamailio[108125]: ERROR: tm [tm.c:1316]: w_t_newtran(): ERROR: t_newtran: transaction already in process 0x7ff2a6e66a58
Jun 20 16:14:12 vict-ims /usr/local/sbin/kamailio[108125]: ERROR: *** cfgtrace:failure_route=[term] c=[/usr/local/etc/kamailio-scscf/kamailio-scscf-routes.cfg] l=677 a=25 n=set_dlg_profile
Jun 20 16:14:12 vict-ims /usr/local/sbin/kamailio[108125]: ERROR: *** cfgtrace:failure_route=[term] c=[/usr/local/etc/kamailio-scscf/kamailio-scscf-routes.cfg] l=692 a=16 n=if
Jun 20 16:14:12 vict-ims /usr/local/sbin/kamailio[108125]: ERROR: *** cfgtrace:failure_route=[term] c=[/usr/local/etc/kamailio-scscf/kamailio-scscf-routes.cfg] l=685 a=25 n=is_method
Jun 20 16:14:12 vict-ims /usr/local/sbin/kamailio[108125]: ERROR: *** cfgtrace:failure_route=[term] c=[/usr/local/etc/kamailio-scscf/kamailio-scscf-routes.cfg] l=686 a=63 n=assign
Jun 20 16:14:12 vict-ims /usr/local/sbin/kamailio[108125]: ERROR: *** cfgtrace:failure_route=[term] c=[/usr/local/etc/kamailio-scscf/kamailio-scscf-routes.cfg] l=687 a=63 n=assign
Jun 20 16:14:12 vict-ims /usr/local/sbin/kamailio[108125]: ERROR: *** cfgtrace:failure_route=[term] c=[/usr/local/etc/kamailio-scscf/kamailio-scscf-routes.cfg] l=688 a=24 n=record_route
Jun 20 16:14:12 vict-ims /usr/local/sbin/kamailio[108125]: ERROR: *** cfgtrace:failure_route=[term] c=[/usr/local/etc/kamailio-scscf/kamailio-scscf-routes.cfg] l=698 a=16 n=if
Jun 20 16:14:12 vict-ims /usr/local/sbin/kamailio[108125]: ERROR: *** cfgtrace:failure_route=[term] c=[/usr/local/etc/kamailio-scscf/kamailio-scscf-routes.cfg] l=692 a=26 n=isc_match_filter
Jun 20 16:14:12 vict-ims /usr/local/sbin/kamailio[108125]: INFO: ims_isc [mod.c:233]: isc_match_filter(): Checking triggers
Jun 20 16:14:12 vict-ims /usr/local/sbin/kamailio[108125]: CRITICAL: ims_isc [mod.c:284]: isc_match_filter(): SKIP: 0

Reproduction

I can help to reproduce the issue. mailto:christoph.valentin@kapsch.net
Currently I have got an experimental test setup using Zoiper Clients.
After week 27 I should have simulated test cases to repeat the Scenario "per mouse-click"

Debugging Data

(paste your debugging data here)

Log Messages

[logs-tshark-routes_2017_06_21.zip](https://github.com/kamailio/kamailio/files/1091394/logs-tshark-routes_2017_06_21.zip)

SIP Traffic

sip || diameter traffic at the s-cscf (172.29.21.23)
[logs-tshark-routes_2017_06_21.zip](https://github.com/kamailio/kamailio/files/1091394/logs-tshark-routes_2017_06_21.zip)

Possible Solutions

Additional Information

[root@vict-ims ~]# kamailio -v
version: kamailio 4.4.5 (x86_64/linux) b0945e-dirty
flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES
ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: b0945e -dirty
compiled on 20:06:13 Jun  7 2017 with gcc 4.8.5
[root@vict-ims ~]#

[root@vict-ims ~]# uname -a
Linux vict-ims 3.10.0-229.el7.x86_64 #1 SMP Thu Jan 29 18:37:38 EST 2015 x86_64 x86_64 x86_64 GNU/Linux
[root@vict-ims ~]#

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