diff --git a/tests/msc_vlr/msc_vlr_test_call.err b/tests/msc_vlr/msc_vlr_test_call.err
index aaf4191..a1da0f7 100644
--- a/tests/msc_vlr/msc_vlr_test_call.err
+++ b/tests/msc_vlr/msc_vlr_test_call.err
@@ -295,14 +295,14 @@
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){ESTABLISHING}: Allocated
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){ESTABLISHING}: is child of msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000001 tid-8) codecs: :0{AMR:octet-align=1#112} (from: MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} RAN={AMR:octet-align=1#112,AMR-WB/16000:octet-align=1#113})
-  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x80000001 codecs=AMR:octet-align=1#112
+  MGW <--CRCX to RTP_TO_CN-- MSC: call_id=0x1 codecs=AMR:octet-align=1#112
 DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483649:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112
-  MGW <--CRCX to RTP_TO_RAN-- MSC: callref=0x80000001 codecs=VND.3GPP.IUFP/16000#96
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-1:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112
+  MGW <--CRCX to RTP_TO_RAN-- MSC: call_id=0x1 codecs=VND.3GPP.IUFP/16000#96
 DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483649:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to VND.3GPP.IUFP/16000#96
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-1:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to VND.3GPP.IUFP/16000#96
 DREF msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: - rx_from_ms: now used by 1 (cc)
 - As soon as the MGW port towards CN is created, MNCC_SETUP_IND is triggered
   MGW --CRCX OK to RTP_TO_CN--> MSC
@@ -337,8 +337,8 @@
 DMSC dummy_msc_i(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){0}: Received Event MSC_I_EV_FROM_A_FORWARD_ACCESS_SIGNALLING_REQUEST
 - Assignment succeeds, triggering MNCC_RTP_CREATE ack to MNCC
 DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: RAN decode: ASSIGNMENT_COMPLETE
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483649:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483649:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-1:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-1:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000001 tid-8) codecs: 10.23.23.1:23{AMR:octet-align=1#112} (from: assigned=AMR:octet-align=1#112 MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} RAN={AMR:octet-align=1#112,AMR-WB/16000:octet-align=1#113})
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000001 tid-8) Assignment Complete: RAN: VND.3GPP.IUFP/16000#96, CN: AMR:octet-align=1#112
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000001 tid-8) codecs: 10.23.23.1:23{AMR:octet-align=1#112} (from: assigned=AMR:octet-align=1#112 MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} RAN={AMR:octet-align=1#112,AMR-WB/16000:octet-align=1#113})
@@ -455,12 +455,12 @@
 DREF VLR subscr IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 + vlr_subscr_cancel_attach_fsm: now used by 4 (attached,active-conn,msc_a_fsm_releasing_onenter,vlr_subscr_cancel_attach_fsm)
 DREF VLR subscr IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 - vlr_subscr_cancel_attach_fsm: now used by 3 (attached,active-conn,msc_a_fsm_releasing_onenter)
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){ESTABLISHING}: state_chg to RELEASING
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483649:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483649:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483649:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483649:RTP_TO_CN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483649:RTP_TO_CN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483649:RTP_TO_CN:no-CI){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-1:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-1:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-1:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-1:RTP_TO_CN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-1:RTP_TO_CN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-1:RTP_TO_CN:no-CI){UNINITIALIZED}: Deallocated
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){RELEASING}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){RELEASING}: Removing from parent msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
 DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_RELEASING}: Received Event MSC_EV_CALL_LEG_TERM
@@ -816,14 +816,14 @@
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){ESTABLISHING}: Allocated
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){ESTABLISHING}: is child of msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP)
 DCC trans(CC:CALL_PRESENT IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) codecs: :0{AMR:octet-align=1#112} (from: remote=10.23.23.1:23{AMR:octet-align=1#112} MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} RAN={AMR:octet-align=1#112,AMR-WB/16000:octet-align=1#113})
-  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x423 codecs=AMR:octet-align=1#112
+  MGW <--CRCX to RTP_TO_CN-- MSC: call_id=0x2 codecs=AMR:octet-align=1#112
 DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112
-  MGW <--CRCX to RTP_TO_RAN-- MSC: callref=0x423 codecs=VND.3GPP.IUFP/16000#96
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-2:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112
+  MGW <--CRCX to RTP_TO_RAN-- MSC: call_id=0x2 codecs=VND.3GPP.IUFP/16000#96
 DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to VND.3GPP.IUFP/16000#96
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-2:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to VND.3GPP.IUFP/16000#96
 DCC trans(CC:CALL_PRESENT IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) new state CALL_PRESENT -> MO_TERM_CALL_CONF
 DMNCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) tx MNCC_CALL_CONF_IND
   MSC --> MNCC: callref 0x423: MNCC_CALL_CONF_IND
@@ -840,8 +840,8 @@
 DMSC dummy_msc_i(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){0}: Received Event MSC_I_EV_FROM_A_FORWARD_ACCESS_SIGNALLING_REQUEST
 - Assignment completes, triggering CRCX to CN
 DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){MSC_A_ST_COMMUNICATING}: RAN decode: ASSIGNMENT_COMPLETE
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-2:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-2:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) codecs: :0{AMR:octet-align=1#112} (from: assigned=AMR:octet-align=1#112 remote=10.23.23.1:23{AMR:octet-align=1#112} MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} RAN={AMR:octet-align=1#112,AMR-WB/16000:octet-align=1#113})
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) Assignment Complete: RAN: VND.3GPP.IUFP/16000#96, CN: AMR:octet-align=1#112
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) Assignment complete, but still waiting for the CRCX OK on the CN side RTP
@@ -974,12 +974,12 @@
 DREF VLR subscr IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 + vlr_subscr_cancel_attach_fsm: now used by 4 (attached,active-conn,msc_a_fsm_releasing_onenter,vlr_subscr_cancel_attach_fsm)
 DREF VLR subscr IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 - vlr_subscr_cancel_attach_fsm: now used by 3 (attached,active-conn,msc_a_fsm_releasing_onenter)
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){ESTABLISHING}: state_chg to RELEASING
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-2:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-2:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-2:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-2:RTP_TO_CN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-2:RTP_TO_CN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-2:RTP_TO_CN:no-CI){UNINITIALIZED}: Deallocated
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){RELEASING}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){RELEASING}: Removing from parent msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP)
 DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){MSC_A_ST_RELEASING}: Received Event MSC_EV_CALL_LEG_TERM
@@ -1335,14 +1335,14 @@
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){ESTABLISHING}: Allocated
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){ESTABLISHING}: is child of msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP)
 DCC trans(CC:CALL_PRESENT IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) codecs: :0{AMR:octet-align=1#112} (from: remote=10.23.23.1:23{AMR:octet-align=1#112} MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} RAN={AMR:octet-align=1#112,AMR-WB/16000:octet-align=1#113})
-  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x423 codecs=AMR:octet-align=1#112
+  MGW <--CRCX to RTP_TO_CN-- MSC: call_id=0x3 codecs=AMR:octet-align=1#112
 DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112
-  MGW <--CRCX to RTP_TO_RAN-- MSC: callref=0x423 codecs=VND.3GPP.IUFP/16000#96
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-3:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112
+  MGW <--CRCX to RTP_TO_RAN-- MSC: call_id=0x3 codecs=VND.3GPP.IUFP/16000#96
 DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to VND.3GPP.IUFP/16000#96
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-3:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to VND.3GPP.IUFP/16000#96
 DCC trans(CC:CALL_PRESENT IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) new state CALL_PRESENT -> MO_TERM_CALL_CONF
 DMNCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) tx MNCC_CALL_CONF_IND
   MSC --> MNCC: callref 0x423: MNCC_CALL_CONF_IND
@@ -1373,8 +1373,8 @@
 DMSC dummy_msc_i(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){0}: Received Event MSC_I_EV_FROM_A_FORWARD_ACCESS_SIGNALLING_REQUEST
 - Assignment completes, triggering CRCX to CN
 DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){MSC_A_ST_COMMUNICATING}: RAN decode: ASSIGNMENT_COMPLETE
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-3:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-3:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) codecs: :0{AMR:octet-align=1#112} (from: assigned=AMR:octet-align=1#112 remote=10.23.23.1:23{AMR:octet-align=1#112} MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} RAN={AMR:octet-align=1#112,AMR-WB/16000:octet-align=1#113})
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) Assignment Complete: RAN: VND.3GPP.IUFP/16000#96, CN: AMR:octet-align=1#112
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) Assignment complete, but still waiting for the CRCX OK on the CN side RTP
@@ -1445,12 +1445,12 @@
 DREF msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){MSC_A_ST_RELEASING}: - cc: now used by 0 (-)
 DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){MSC_A_ST_RELEASING}: Received Event MSC_A_EV_UNUSED
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){ESTABLISHING}: state_chg to RELEASING
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-3:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-3:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-3:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-3:RTP_TO_CN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-3:RTP_TO_CN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP:trans-0:call-3:RTP_TO_CN:no-CI){UNINITIALIZED}: Deallocated
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){RELEASING}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){RELEASING}: Removing from parent msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP)
 DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){MSC_A_ST_RELEASING}: Received Event MSC_EV_CALL_LEG_TERM
@@ -1785,14 +1785,14 @@
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){ESTABLISHING}: Allocated
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){ESTABLISHING}: is child of msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000002 tid-8) codecs: :0{AMR:octet-align=1#112} (from: MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} RAN={AMR:octet-align=1#112,AMR-WB/16000:octet-align=1#113})
-  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x80000002 codecs=AMR:octet-align=1#112
+  MGW <--CRCX to RTP_TO_CN-- MSC: call_id=0x4 codecs=AMR:octet-align=1#112
 DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483650:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112
-  MGW <--CRCX to RTP_TO_RAN-- MSC: callref=0x80000002 codecs=VND.3GPP.IUFP/16000#96
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-4:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112
+  MGW <--CRCX to RTP_TO_RAN-- MSC: call_id=0x4 codecs=VND.3GPP.IUFP/16000#96
 DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483650:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to VND.3GPP.IUFP/16000#96
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-4:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to VND.3GPP.IUFP/16000#96
 DREF msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: - rx_from_ms: now used by 1 (cc)
 - As soon as the MGW port towards CN is created, MNCC_SETUP_IND is triggered
   MGW --CRCX OK to RTP_TO_CN--> MSC
@@ -1827,8 +1827,8 @@
 DMSC dummy_msc_i(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){0}: Received Event MSC_I_EV_FROM_A_FORWARD_ACCESS_SIGNALLING_REQUEST
 - Assignment succeeds, triggering MNCC_RTP_CREATE ack to MNCC
 DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: RAN decode: ASSIGNMENT_COMPLETE
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483650:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483650:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-4:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-4:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000002 tid-8) codecs: 10.23.23.1:23{AMR:octet-align=1#112} (from: assigned=AMR:octet-align=1#112 MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} RAN={AMR:octet-align=1#112,AMR-WB/16000:octet-align=1#113})
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000002 tid-8) Assignment Complete: RAN: VND.3GPP.IUFP/16000#96, CN: AMR:octet-align=1#112
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000002 tid-8) codecs: 10.23.23.1:23{AMR:octet-align=1#112} (from: assigned=AMR:octet-align=1#112 MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} RAN={AMR:octet-align=1#112,AMR-WB/16000:octet-align=1#113})
@@ -1900,12 +1900,12 @@
 DREF VLR subscr IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 + vlr_subscr_cancel_attach_fsm: now used by 4 (attached,active-conn,msc_a_fsm_releasing_onenter,vlr_subscr_cancel_attach_fsm)
 DREF VLR subscr IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 - vlr_subscr_cancel_attach_fsm: now used by 3 (attached,active-conn,msc_a_fsm_releasing_onenter)
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){ESTABLISHING}: state_chg to RELEASING
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483650:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483650:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483650:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483650:RTP_TO_CN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483650:RTP_TO_CN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483650:RTP_TO_CN:no-CI){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-4:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-4:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-4:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-4:RTP_TO_CN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-4:RTP_TO_CN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-4:RTP_TO_CN:no-CI){UNINITIALIZED}: Deallocated
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){RELEASING}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){RELEASING}: Removing from parent msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
 DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_RELEASING}: Received Event MSC_EV_CALL_LEG_TERM
@@ -2239,14 +2239,14 @@
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){ESTABLISHING}: Allocated
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){ESTABLISHING}: is child of msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000003 tid-8) codecs: :0{AMR:octet-align=1#112} (from: MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} RAN={AMR:octet-align=1#112,AMR-WB/16000:octet-align=1#113})
-  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x80000003 codecs=AMR:octet-align=1#112
+  MGW <--CRCX to RTP_TO_CN-- MSC: call_id=0x5 codecs=AMR:octet-align=1#112
 DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483651:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112
-  MGW <--CRCX to RTP_TO_RAN-- MSC: callref=0x80000003 codecs=VND.3GPP.IUFP/16000#96
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-5:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112
+  MGW <--CRCX to RTP_TO_RAN-- MSC: call_id=0x5 codecs=VND.3GPP.IUFP/16000#96
 DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483651:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to VND.3GPP.IUFP/16000#96
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-5:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to VND.3GPP.IUFP/16000#96
 DREF msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: - rx_from_ms: now used by 1 (cc)
 - As soon as the MGW port towards CN is created, MNCC_SETUP_IND is triggered
   MGW --CRCX OK to RTP_TO_CN--> MSC
@@ -2281,8 +2281,8 @@
 DMSC dummy_msc_i(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){0}: Received Event MSC_I_EV_FROM_A_FORWARD_ACCESS_SIGNALLING_REQUEST
 - Assignment succeeds, triggering MNCC_RTP_CREATE ack to MNCC
 DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: RAN decode: ASSIGNMENT_COMPLETE
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483651:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483651:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-5:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-5:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000003 tid-8) codecs: 10.23.23.1:23{AMR:octet-align=1#112} (from: assigned=AMR:octet-align=1#112 MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} RAN={AMR:octet-align=1#112,AMR-WB/16000:octet-align=1#113})
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000003 tid-8) Assignment Complete: RAN: VND.3GPP.IUFP/16000#96, CN: AMR:octet-align=1#112
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000003 tid-8) codecs: 10.23.23.1:23{AMR:octet-align=1#112} (from: assigned=AMR:octet-align=1#112 MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} RAN={AMR:octet-align=1#112,AMR-WB/16000:octet-align=1#113})
@@ -2351,12 +2351,12 @@
 DREF VLR subscr IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 + vlr_subscr_cancel_attach_fsm: now used by 4 (attached,active-conn,msc_a_fsm_releasing_onenter,vlr_subscr_cancel_attach_fsm)
 DREF VLR subscr IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 - vlr_subscr_cancel_attach_fsm: now used by 3 (attached,active-conn,msc_a_fsm_releasing_onenter)
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){ESTABLISHING}: state_chg to RELEASING
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483651:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483651:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483651:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483651:RTP_TO_CN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483651:RTP_TO_CN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-2147483651:RTP_TO_CN:no-CI){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-5:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-5:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-5:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-5:RTP_TO_CN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-5:RTP_TO_CN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ:trans-8:call-5:RTP_TO_CN:no-CI){UNINITIALIZED}: Deallocated
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){RELEASING}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){RELEASING}: Removing from parent msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ)
 DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_RELEASING}: Received Event MSC_EV_CALL_LEG_TERM
@@ -2584,14 +2584,14 @@
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){ESTABLISHING}: Allocated
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){ESTABLISHING}: is child of msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000004 tid-8) codecs: :0{AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} (from: MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
-  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x80000004 codecs=AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
+  MGW <--CRCX to RTP_TO_CN-- MSC: call_id=0x6 codecs=AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483652:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
-  MGW <--CRCX to RTP_TO_RAN-- MSC: callref=0x80000004 codecs=AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-6:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
+  MGW <--CRCX to RTP_TO_RAN-- MSC: call_id=0x6 codecs=AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483652:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-6:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
 DREF msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: - rx_from_ms: now used by 1 (cc)
 - As soon as the MGW port towards CN is created, MNCC_SETUP_IND is triggered
   MGW --CRCX OK to RTP_TO_CN--> MSC
@@ -2631,9 +2631,9 @@
 - VALIDATE_PERM_SPEECH OK: &bssap_assignment_command_last_channel_type == t->mo_tx_assignment_perm_speech == FR3 HR3 FR2 FR1 HR1
 - Assignment succeeds, triggering MNCC_RTP_CREATE ack to MNCC
 DBSSAP msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: RAN decode: ASSIGNMENT_COMPLETE
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483652:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483652:RTP_TO_RAN:no-CI:local-10-23-23-1-23){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483652:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-6:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-6:RTP_TO_RAN:no-CI:local-10-23-23-1-23){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-6:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000004 tid-8) codecs: 10.23.23.1:23{AMR:octet-align=1#112} (from: assigned=AMR:octet-align=1#112 MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000004 tid-8) Assignment Complete: RAN: AMR:octet-align=1#112, CN: AMR:octet-align=1#112
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000004 tid-8) codecs: 10.23.23.1:23{AMR:octet-align=1#112} (from: assigned=AMR:octet-align=1#112 MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
@@ -2682,9 +2682,9 @@
 DCC trans(CC:MO_CALL_PROC IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000004 tid-8) new state MO_CALL_PROC -> CALL_DELIVERED
 DCC trans(CC:CALL_DELIVERED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000004 tid-8) codecs: 10.23.23.1:23{AMR:octet-align=1#112} (from: assigned=AMR:octet-align=1#112 remote=1.2.3.4:56{AMR:octet-align=1#112} MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
 DCC trans(CC:CALL_DELIVERED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000004 tid-8) msg_type=MNCC_ALERT_REQ
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483652:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483652:RTP_TO_CN:no-CI:local-10-23-23-1-23){UNINITIALIZED}: setting remote addr to 1.2.3.4:56
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483652:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-6:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-6:RTP_TO_CN:no-CI:local-10-23-23-1-23){UNINITIALIZED}: setting remote addr to 1.2.3.4:56
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-6:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
 DBSSAP msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: Sending DTAP: CC GSM48_MT_CC_ALERTING
 DMSC msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: RAN encode: DTAP on GERAN-A
 - DTAP --GERAN-A--> MS: GSM48_MT_CC_ALERTING: 8301
@@ -2708,9 +2708,9 @@
 DCC trans(CC:CALL_DELIVERED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000004 tid-8) new state CALL_DELIVERED -> CONNECT_IND
 DCC trans(CC:CONNECT_IND IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000004 tid-8) codecs: 10.23.23.1:23{AMR:octet-align=1#112} (from: assigned=AMR:octet-align=1#112 remote=1.2.3.4:56{AMR:octet-align=1#112} MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
 DCC trans(CC:CONNECT_IND IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000004 tid-8) msg_type=MNCC_SETUP_RSP
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483652:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: no change: codecs already set to AMR:octet-align=1#112
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483652:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: remote addr already 1.2.3.4:56, no change
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483652:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-6:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: no change: codecs already set to AMR:octet-align=1#112
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-6:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: remote addr already 1.2.3.4:56, no change
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-6:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
 DBSSAP msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: Sending DTAP: CC GSM48_MT_CC_CONNECT
 DMSC msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: RAN encode: DTAP on GERAN-A
 - DTAP --GERAN-A--> MS: GSM48_MT_CC_CONNECT: 8307
@@ -2789,12 +2789,12 @@
 DREF VLR subscr IMSI-901700000010650:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (attached,active-conn,msc_a_fsm_releasing_onenter,vlr_subscr_cancel_attach_fsm)
 DREF VLR subscr IMSI-901700000010650:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (attached,active-conn,msc_a_fsm_releasing_onenter)
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){ESTABLISHING}: state_chg to RELEASING
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483652:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483652:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483652:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483652:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483652:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483652:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-6:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-6:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-6:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-6:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-6:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-6:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Deallocated
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){RELEASING}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){RELEASING}: Removing from parent msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
 DMSC msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_RELEASING}: Received Event MSC_EV_CALL_LEG_TERM
@@ -2926,14 +2926,14 @@
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){ESTABLISHING}: Allocated
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){ESTABLISHING}: is child of msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
 DCC trans(CC:CALL_PRESENT IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) codecs: :0{AMR:octet-align=1#112} (from: remote=1.2.3.4:56{AMR:octet-align=1#112} MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
-  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x423 codecs=AMR:octet-align=1#112
+  MGW <--CRCX to RTP_TO_CN-- MSC: call_id=0x7 codecs=AMR:octet-align=1#112
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112
-  MGW <--CRCX to RTP_TO_RAN-- MSC: callref=0x423 codecs=AMR:octet-align=1#112
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-7:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112
+  MGW <--CRCX to RTP_TO_RAN-- MSC: call_id=0x7 codecs=AMR:octet-align=1#112
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-7:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112
 DCC trans(CC:CALL_PRESENT IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) new state CALL_PRESENT -> MO_TERM_CALL_CONF
 DMNCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) tx MNCC_CALL_CONF_IND
   MSC --> MNCC: callref 0x423: MNCC_CALL_CONF_IND
@@ -2952,9 +2952,9 @@
 - VALIDATE_PERM_SPEECH OK: &bssap_assignment_command_last_channel_type == t->mt_tx_assignment_perm_speech == FR3 HR3
 - Assignment completes, triggering CRCX to CN
 DBSSAP msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){MSC_A_ST_COMMUNICATING}: RAN decode: ASSIGNMENT_COMPLETE
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI){UNINITIALIZED}: no change: codecs already set to AMR:octet-align=1#112
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-7:RTP_TO_RAN:no-CI){UNINITIALIZED}: no change: codecs already set to AMR:octet-align=1#112
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-7:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-7:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) codecs: :0{AMR:octet-align=1#112} (from: assigned=AMR:octet-align=1#112 remote=1.2.3.4:56{AMR:octet-align=1#112} MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) Assignment Complete: RAN: AMR:octet-align=1#112, CN: AMR:octet-align=1#112
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) Assignment complete, but still waiting for the CRCX OK on the CN side RTP
@@ -3090,12 +3090,12 @@
 DREF VLR subscr IMSI-901700000010650:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (attached,active-conn,msc_a_fsm_releasing_onenter,vlr_subscr_cancel_attach_fsm)
 DREF VLR subscr IMSI-901700000010650:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (attached,active-conn,msc_a_fsm_releasing_onenter)
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){ESTABLISHING}: state_chg to RELEASING
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-7:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-7:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-7:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-7:RTP_TO_CN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-7:RTP_TO_CN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-7:RTP_TO_CN:no-CI){UNINITIALIZED}: Deallocated
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){RELEASING}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){RELEASING}: Removing from parent msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
 DMSC msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){MSC_A_ST_RELEASING}: Received Event MSC_EV_CALL_LEG_TERM
@@ -3200,14 +3200,14 @@
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){ESTABLISHING}: Allocated
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){ESTABLISHING}: is child of msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000005 tid-8) codecs: :0{GSM#3} (from: MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} bss={GSM#3} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
-  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x80000005 codecs=GSM#3
+  MGW <--CRCX to RTP_TO_CN-- MSC: call_id=0x8 codecs=GSM#3
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483653:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to GSM#3
-  MGW <--CRCX to RTP_TO_RAN-- MSC: callref=0x80000005 codecs=GSM#3
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-8:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to GSM#3
+  MGW <--CRCX to RTP_TO_RAN-- MSC: call_id=0x8 codecs=GSM#3
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483653:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to GSM#3
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-8:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to GSM#3
 DREF msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: - rx_from_ms: now used by 1 (cc)
 - As soon as the MGW port towards CN is created, MNCC_SETUP_IND is triggered
   MGW --CRCX OK to RTP_TO_CN--> MSC
@@ -3243,9 +3243,9 @@
 - VALIDATE_PERM_SPEECH OK: &bssap_assignment_command_last_channel_type == t->mo_tx_assignment_perm_speech == FR1
 - Assignment succeeds, triggering MNCC_RTP_CREATE ack to MNCC
 DBSSAP msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: RAN decode: ASSIGNMENT_COMPLETE
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483653:RTP_TO_RAN:no-CI){UNINITIALIZED}: no change: codecs already set to GSM#3
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483653:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483653:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-8:RTP_TO_RAN:no-CI){UNINITIALIZED}: no change: codecs already set to GSM#3
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-8:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-8:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000005 tid-8) codecs: 10.23.23.1:23{GSM#3} (from: assigned=GSM#3 MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} bss={GSM#3} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000005 tid-8) Assignment Complete: RAN: GSM#3, CN: GSM#3
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000005 tid-8) codecs: 10.23.23.1:23{GSM#3} (from: assigned=GSM#3 MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} bss={GSM#3} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
@@ -3292,9 +3292,9 @@
 DCC trans(CC:MO_CALL_PROC IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000005 tid-8) new state MO_CALL_PROC -> CALL_DELIVERED
 DCC trans(CC:CALL_DELIVERED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000005 tid-8) codecs: 10.23.23.1:23{GSM#3} (from: assigned=GSM#3 remote=1.2.3.4:56{GSM#3} MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} bss={GSM#3} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
 DCC trans(CC:CALL_DELIVERED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000005 tid-8) msg_type=MNCC_ALERT_REQ
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483653:RTP_TO_CN:no-CI){UNINITIALIZED}: no change: codecs already set to GSM#3
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483653:RTP_TO_CN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:56
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483653:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-8:RTP_TO_CN:no-CI){UNINITIALIZED}: no change: codecs already set to GSM#3
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-8:RTP_TO_CN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:56
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-8:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
 DBSSAP msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: Sending DTAP: CC GSM48_MT_CC_ALERTING
 DMSC msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: RAN encode: DTAP on GERAN-A
 - DTAP --GERAN-A--> MS: GSM48_MT_CC_ALERTING: 8301
@@ -3317,9 +3317,9 @@
 DCC trans(CC:CALL_DELIVERED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000005 tid-8) new state CALL_DELIVERED -> CONNECT_IND
 DCC trans(CC:CONNECT_IND IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000005 tid-8) codecs: 10.23.23.1:23{GSM#3} (from: assigned=GSM#3 remote=1.2.3.4:56{GSM#3} MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} bss={GSM#3} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
 DCC trans(CC:CONNECT_IND IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000005 tid-8) msg_type=MNCC_SETUP_RSP
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483653:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: no change: codecs already set to GSM#3
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483653:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: remote addr already 1.2.3.4:56, no change
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483653:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-8:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: no change: codecs already set to GSM#3
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-8:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: remote addr already 1.2.3.4:56, no change
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-8:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
 DBSSAP msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: Sending DTAP: CC GSM48_MT_CC_CONNECT
 DMSC msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: RAN encode: DTAP on GERAN-A
 - DTAP --GERAN-A--> MS: GSM48_MT_CC_CONNECT: 8307
@@ -3397,12 +3397,12 @@
 DREF VLR subscr IMSI-901700000010650:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (attached,active-conn,msc_a_fsm_releasing_onenter,vlr_subscr_cancel_attach_fsm)
 DREF VLR subscr IMSI-901700000010650:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (attached,active-conn,msc_a_fsm_releasing_onenter)
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){ESTABLISHING}: state_chg to RELEASING
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483653:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483653:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483653:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483653:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483653:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483653:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-8:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-8:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-8:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-8:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-8:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-8:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Deallocated
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){RELEASING}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){RELEASING}: Removing from parent msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
 DMSC msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_RELEASING}: Received Event MSC_EV_CALL_LEG_TERM
@@ -3533,14 +3533,14 @@
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){ESTABLISHING}: Allocated
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){ESTABLISHING}: is child of msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
 DCC trans(CC:CALL_PRESENT IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) codecs: :0{GSM#3} (from: remote=1.2.3.4:56{GSM#3} MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
-  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x423 codecs=GSM#3
+  MGW <--CRCX to RTP_TO_CN-- MSC: call_id=0x9 codecs=GSM#3
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to GSM#3
-  MGW <--CRCX to RTP_TO_RAN-- MSC: callref=0x423 codecs=GSM#3
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-9:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to GSM#3
+  MGW <--CRCX to RTP_TO_RAN-- MSC: call_id=0x9 codecs=GSM#3
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to GSM#3
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-9:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to GSM#3
 DCC trans(CC:CALL_PRESENT IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) new state CALL_PRESENT -> MO_TERM_CALL_CONF
 DMNCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) tx MNCC_CALL_CONF_IND
   MSC --> MNCC: callref 0x423: MNCC_CALL_CONF_IND
@@ -3559,9 +3559,9 @@
 - VALIDATE_PERM_SPEECH OK: &bssap_assignment_command_last_channel_type == t->mt_tx_assignment_perm_speech == FR1
 - Assignment completes, triggering CRCX to CN
 DBSSAP msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){MSC_A_ST_COMMUNICATING}: RAN decode: ASSIGNMENT_COMPLETE
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI){UNINITIALIZED}: no change: codecs already set to GSM#3
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-9:RTP_TO_RAN:no-CI){UNINITIALIZED}: no change: codecs already set to GSM#3
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-9:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-9:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) codecs: :0{GSM#3} (from: assigned=GSM#3 remote=1.2.3.4:56{GSM#3} MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) Assignment Complete: RAN: GSM#3, CN: GSM#3
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) Assignment complete, but still waiting for the CRCX OK on the CN side RTP
@@ -3694,12 +3694,12 @@
 DREF VLR subscr IMSI-901700000010650:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (attached,active-conn,msc_a_fsm_releasing_onenter,vlr_subscr_cancel_attach_fsm)
 DREF VLR subscr IMSI-901700000010650:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (attached,active-conn,msc_a_fsm_releasing_onenter)
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){ESTABLISHING}: state_chg to RELEASING
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-9:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-9:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-9:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-9:RTP_TO_CN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-9:RTP_TO_CN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-9:RTP_TO_CN:no-CI){UNINITIALIZED}: Deallocated
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){RELEASING}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){RELEASING}: Removing from parent msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
 DMSC msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){MSC_A_ST_RELEASING}: Received Event MSC_EV_CALL_LEG_TERM
@@ -3804,14 +3804,14 @@
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){ESTABLISHING}: Allocated
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){ESTABLISHING}: is child of msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000006 tid-8) codecs: :0{GSM#3} (from: MS={GSM#3} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
-  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x80000006 codecs=GSM#3
+  MGW <--CRCX to RTP_TO_CN-- MSC: call_id=0xa codecs=GSM#3
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483654:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to GSM#3
-  MGW <--CRCX to RTP_TO_RAN-- MSC: callref=0x80000006 codecs=GSM#3
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-10:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to GSM#3
+  MGW <--CRCX to RTP_TO_RAN-- MSC: call_id=0xa codecs=GSM#3
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483654:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to GSM#3
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-10:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to GSM#3
 DREF msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: - rx_from_ms: now used by 1 (cc)
 - As soon as the MGW port towards CN is created, MNCC_SETUP_IND is triggered
   MGW --CRCX OK to RTP_TO_CN--> MSC
@@ -3847,9 +3847,9 @@
 - VALIDATE_PERM_SPEECH OK: &bssap_assignment_command_last_channel_type == t->mo_tx_assignment_perm_speech == FR1
 - Assignment succeeds, triggering MNCC_RTP_CREATE ack to MNCC
 DBSSAP msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: RAN decode: ASSIGNMENT_COMPLETE
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483654:RTP_TO_RAN:no-CI){UNINITIALIZED}: no change: codecs already set to GSM#3
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483654:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483654:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-10:RTP_TO_RAN:no-CI){UNINITIALIZED}: no change: codecs already set to GSM#3
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-10:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-10:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000006 tid-8) codecs: 10.23.23.1:23{GSM#3} (from: assigned=GSM#3 MS={GSM#3} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000006 tid-8) Assignment Complete: RAN: GSM#3, CN: GSM#3
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000006 tid-8) codecs: 10.23.23.1:23{GSM#3} (from: assigned=GSM#3 MS={GSM#3} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
@@ -3896,9 +3896,9 @@
 DCC trans(CC:MO_CALL_PROC IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000006 tid-8) new state MO_CALL_PROC -> CALL_DELIVERED
 DCC trans(CC:CALL_DELIVERED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000006 tid-8) codecs: 10.23.23.1:23{GSM#3} (from: assigned=GSM#3 remote=1.2.3.4:56{GSM#3} MS={GSM#3} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
 DCC trans(CC:CALL_DELIVERED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000006 tid-8) msg_type=MNCC_ALERT_REQ
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483654:RTP_TO_CN:no-CI){UNINITIALIZED}: no change: codecs already set to GSM#3
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483654:RTP_TO_CN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:56
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483654:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-10:RTP_TO_CN:no-CI){UNINITIALIZED}: no change: codecs already set to GSM#3
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-10:RTP_TO_CN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:56
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-10:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
 DBSSAP msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: Sending DTAP: CC GSM48_MT_CC_ALERTING
 DMSC msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: RAN encode: DTAP on GERAN-A
 - DTAP --GERAN-A--> MS: GSM48_MT_CC_ALERTING: 8301
@@ -3921,9 +3921,9 @@
 DCC trans(CC:CALL_DELIVERED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000006 tid-8) new state CALL_DELIVERED -> CONNECT_IND
 DCC trans(CC:CONNECT_IND IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000006 tid-8) codecs: 10.23.23.1:23{GSM#3} (from: assigned=GSM#3 remote=1.2.3.4:56{GSM#3} MS={GSM#3} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
 DCC trans(CC:CONNECT_IND IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000006 tid-8) msg_type=MNCC_SETUP_RSP
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483654:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: no change: codecs already set to GSM#3
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483654:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: remote addr already 1.2.3.4:56, no change
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483654:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-10:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: no change: codecs already set to GSM#3
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-10:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: remote addr already 1.2.3.4:56, no change
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-10:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
 DBSSAP msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: Sending DTAP: CC GSM48_MT_CC_CONNECT
 DMSC msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: RAN encode: DTAP on GERAN-A
 - DTAP --GERAN-A--> MS: GSM48_MT_CC_CONNECT: 8307
@@ -4001,12 +4001,12 @@
 DREF VLR subscr IMSI-901700000010650:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (attached,active-conn,msc_a_fsm_releasing_onenter,vlr_subscr_cancel_attach_fsm)
 DREF VLR subscr IMSI-901700000010650:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (attached,active-conn,msc_a_fsm_releasing_onenter)
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){ESTABLISHING}: state_chg to RELEASING
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483654:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483654:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483654:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483654:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483654:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483654:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-10:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-10:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-10:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-10:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-10:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-10:RTP_TO_CN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-56){UNINITIALIZED}: Deallocated
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){RELEASING}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){RELEASING}: Removing from parent msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
 DMSC msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_RELEASING}: Received Event MSC_EV_CALL_LEG_TERM
@@ -4137,14 +4137,14 @@
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){ESTABLISHING}: Allocated
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){ESTABLISHING}: is child of msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
 DCC trans(CC:CALL_PRESENT IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) codecs: :0{GSM#3} (from: remote=1.2.3.4:56{GSM#3} MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
-  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x423 codecs=GSM#3
+  MGW <--CRCX to RTP_TO_CN-- MSC: call_id=0xb codecs=GSM#3
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to GSM#3
-  MGW <--CRCX to RTP_TO_RAN-- MSC: callref=0x423 codecs=GSM#3
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-11:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to GSM#3
+  MGW <--CRCX to RTP_TO_RAN-- MSC: call_id=0xb codecs=GSM#3
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to GSM#3
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-11:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to GSM#3
 DCC trans(CC:CALL_PRESENT IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) new state CALL_PRESENT -> MO_TERM_CALL_CONF
 DMNCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) tx MNCC_CALL_CONF_IND
   MSC --> MNCC: callref 0x423: MNCC_CALL_CONF_IND
@@ -4163,9 +4163,9 @@
 - VALIDATE_PERM_SPEECH OK: &bssap_assignment_command_last_channel_type == t->mt_tx_assignment_perm_speech == FR1
 - Assignment completes, triggering CRCX to CN
 DBSSAP msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){MSC_A_ST_COMMUNICATING}: RAN decode: ASSIGNMENT_COMPLETE
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI){UNINITIALIZED}: no change: codecs already set to GSM#3
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-11:RTP_TO_RAN:no-CI){UNINITIALIZED}: no change: codecs already set to GSM#3
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-11:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-11:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) codecs: :0{GSM#3} (from: assigned=GSM#3 remote=1.2.3.4:56{GSM#3} MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) Assignment Complete: RAN: GSM#3, CN: GSM#3
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) Assignment complete, but still waiting for the CRCX OK on the CN side RTP
@@ -4298,12 +4298,12 @@
 DREF VLR subscr IMSI-901700000010650:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (attached,active-conn,msc_a_fsm_releasing_onenter,vlr_subscr_cancel_attach_fsm)
 DREF VLR subscr IMSI-901700000010650:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (attached,active-conn,msc_a_fsm_releasing_onenter)
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){ESTABLISHING}: state_chg to RELEASING
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-11:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-11:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-11:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-11:RTP_TO_CN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-11:RTP_TO_CN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-11:RTP_TO_CN:no-CI){UNINITIALIZED}: Deallocated
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){RELEASING}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){RELEASING}: Removing from parent msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
 DMSC msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){MSC_A_ST_RELEASING}: Received Event MSC_EV_CALL_LEG_TERM
@@ -4408,14 +4408,14 @@
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){ESTABLISHING}: Allocated
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){ESTABLISHING}: is child of msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000007 tid-8) codecs: :0{AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} (from: MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
-  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x80000007 codecs=AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
+  MGW <--CRCX to RTP_TO_CN-- MSC: call_id=0xc codecs=AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483655:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
-  MGW <--CRCX to RTP_TO_RAN-- MSC: callref=0x80000007 codecs=AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-12:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
+  MGW <--CRCX to RTP_TO_RAN-- MSC: call_id=0xc codecs=AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483655:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-12:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
 DREF msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: - rx_from_ms: now used by 1 (cc)
 - As soon as the MGW port towards CN is created, MNCC_SETUP_IND is triggered
   MGW --CRCX OK to RTP_TO_CN--> MSC
@@ -4455,9 +4455,9 @@
 - VALIDATE_PERM_SPEECH OK: &bssap_assignment_command_last_channel_type == t->mo_tx_assignment_perm_speech == FR3 HR3 FR2 FR1 HR1
 - Assignment succeeds, triggering MNCC_RTP_CREATE ack to MNCC
 DBSSAP msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: RAN decode: ASSIGNMENT_COMPLETE
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483655:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483655:RTP_TO_RAN:no-CI:local-10-23-23-1-23){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483655:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-12:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-12:RTP_TO_RAN:no-CI:local-10-23-23-1-23){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-12:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000007 tid-8) codecs: 10.23.23.1:23{AMR:octet-align=1#112} (from: assigned=AMR:octet-align=1#112 MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000007 tid-8) Assignment Complete: RAN: AMR:octet-align=1#112, CN: AMR:octet-align=1#112
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000007 tid-8) codecs: 10.23.23.1:23{AMR:octet-align=1#112} (from: assigned=AMR:octet-align=1#112 MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
@@ -4576,12 +4576,12 @@
 DREF VLR subscr IMSI-901700000010650:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (attached,active-conn,msc_a_fsm_releasing_onenter,vlr_subscr_cancel_attach_fsm)
 DREF VLR subscr IMSI-901700000010650:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (attached,active-conn,msc_a_fsm_releasing_onenter)
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){ESTABLISHING}: state_chg to RELEASING
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483655:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483655:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483655:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483655:RTP_TO_CN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483655:RTP_TO_CN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483655:RTP_TO_CN:no-CI){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-12:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-12:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-12:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-12:RTP_TO_CN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-12:RTP_TO_CN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-12:RTP_TO_CN:no-CI){UNINITIALIZED}: Deallocated
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){RELEASING}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){RELEASING}: Removing from parent msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
 DMSC msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_RELEASING}: Received Event MSC_EV_CALL_LEG_TERM
@@ -4809,14 +4809,14 @@
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){ESTABLISHING}: Allocated
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){ESTABLISHING}: is child of msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000008 tid-8) codecs: :0{AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} (from: MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
-  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x80000008 codecs=AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
+  MGW <--CRCX to RTP_TO_CN-- MSC: call_id=0xe codecs=AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483656:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
-  MGW <--CRCX to RTP_TO_RAN-- MSC: callref=0x80000008 codecs=AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-14:RTP_TO_CN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
+  MGW <--CRCX to RTP_TO_RAN-- MSC: call_id=0xe codecs=AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483656:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-14:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111
 DREF msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: - rx_from_ms: now used by 1 (cc)
 - As soon as the MGW port towards CN is created, MNCC_SETUP_IND is triggered
   MGW --CRCX OK to RTP_TO_CN--> MSC
@@ -4856,9 +4856,9 @@
 - VALIDATE_PERM_SPEECH OK: &bssap_assignment_command_last_channel_type == t->mo_tx_assignment_perm_speech == FR3 HR3 FR2 FR1 HR1
 - Assignment succeeds, triggering MNCC_RTP_CREATE ack to MNCC
 DBSSAP msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: RAN decode: ASSIGNMENT_COMPLETE
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483656:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483656:RTP_TO_RAN:no-CI:local-10-23-23-1-23){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483656:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-14:RTP_TO_RAN:no-CI){UNINITIALIZED}: setting codecs to AMR:octet-align=1#112
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-14:RTP_TO_RAN:no-CI:local-10-23-23-1-23){UNINITIALIZED}: setting remote addr to 1.2.3.4:1234
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-14:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Not committing: no MGW endpoint CI set up
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000008 tid-8) codecs: 10.23.23.1:23{AMR:octet-align=1#112} (from: assigned=AMR:octet-align=1#112 MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000008 tid-8) Assignment Complete: RAN: AMR:octet-align=1#112, CN: AMR:octet-align=1#112
 DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ callref-0x80000008 tid-8) codecs: 10.23.23.1:23{AMR:octet-align=1#112} (from: assigned=AMR:octet-align=1#112 MS={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
@@ -4977,12 +4977,12 @@
 DREF VLR subscr IMSI-901700000010650:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (attached,active-conn,msc_a_fsm_releasing_onenter,vlr_subscr_cancel_attach_fsm)
 DREF VLR subscr IMSI-901700000010650:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (attached,active-conn,msc_a_fsm_releasing_onenter)
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){ESTABLISHING}: state_chg to RELEASING
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483656:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483656:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483656:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483656:RTP_TO_CN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483656:RTP_TO_CN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-2147483656:RTP_TO_CN:no-CI){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-14:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-14:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-14:RTP_TO_RAN:no-CI:local-10-23-23-1-23:remote-1-2-3-4-1234){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-14:RTP_TO_CN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-14:RTP_TO_CN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ:trans-8:call-14:RTP_TO_CN:no-CI){UNINITIALIZED}: Deallocated
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){RELEASING}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){RELEASING}: Removing from parent msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ)
 DMSC msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:CM_SERVICE_REQ){MSC_A_ST_RELEASING}: Received Event MSC_EV_CALL_LEG_TERM
@@ -5114,10 +5114,10 @@
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){ESTABLISHING}: Allocated
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){ESTABLISHING}: is child of msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
 DCC trans(CC:CALL_PRESENT IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) codecs: :0{(no-codecs)} (from: remote=1.2.3.4:56{AMR:octet-align=1#112} MS={GSM#3} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
-  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x423 codecs=(no-codecs)
+  MGW <--CRCX to RTP_TO_CN-- MSC: call_id=0xf codecs=(no-codecs)
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
-  MGW <--CRCX to RTP_TO_RAN-- MSC: callref=0x423 codecs=(no-codecs)
+  MGW <--CRCX to RTP_TO_RAN-- MSC: call_id=0xf codecs=(no-codecs)
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){UNINITIALIZED}: Allocated
 DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){UNINITIALIZED}: is child of call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
 DCC trans(CC:CALL_PRESENT IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) new state CALL_PRESENT -> MO_TERM_CALL_CONF
@@ -5136,12 +5136,12 @@
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) Sending Assignment Command
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) Assignment not possible, no matching codec: :0{(no-codecs)} (from: remote=1.2.3.4:56{AMR:octet-align=1#112} MS={GSM#3} bss={GSM#3,GSM-EFR#110,AMR:octet-align=1#112,GSM-HR-08#111} RAN={AMR:octet-align=1#112,GSM-EFR#110,GSM#3,GSM-HR-08#111})
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){ESTABLISHING}: state_chg to RELEASING
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_RAN:no-CI){UNINITIALIZED}: Deallocated
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
-DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-1059:RTP_TO_CN:no-CI){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-15:RTP_TO_RAN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-15:RTP_TO_RAN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-15:RTP_TO_RAN:no-CI){UNINITIALIZED}: Deallocated
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-15:RTP_TO_CN:no-CI){UNINITIALIZED}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-15:RTP_TO_CN:no-CI){UNINITIALIZED}: Removing from parent call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
+DCC rtp_stream(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP:trans-0:call-15:RTP_TO_CN:no-CI){UNINITIALIZED}: Deallocated
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){RELEASING}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DCC call_leg(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){RELEASING}: Removing from parent msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP)
 DMSC msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){MSC_A_ST_COMMUNICATING}: Received Event MSC_EV_CALL_LEG_TERM