diff --git a/tests/msc_vlr/msc_vlr_test_call.c b/tests/msc_vlr/msc_vlr_test_call.c
index 84614dc..07c6e13 100644
--- a/tests/msc_vlr/msc_vlr_test_call.c
+++ b/tests/msc_vlr/msc_vlr_test_call.c
@@ -202,8 +202,9 @@
 
 	BTW("a call is initiated");
 
-	btw("SETUP gets forwarded to MNCC");
-	cc_to_mncc_expect_tx(IMSI, MNCC_SETUP_IND);
+	btw("CC SETUP causes CRCX towards CN");
+	expect_crcx(RTP_TO_CN);
+	expect_crcx(RTP_TO_RAN);
 	ms_sends_msg("0385" /* CC, seq = 2 -> 0x80 | CC Setup = 0x5 */
 		     "0406600402000581" /* Bearer Capability */
 		     "5e038121f3" /* Called Number BCD */
@@ -212,27 +213,27 @@
 		       "04026000" /* UMTS: AMR 2 | AMR */
 		       "00021f00" /* GSM: HR AMR | FR AMR | GSM EFR | GSM HR | GSM FR */
 		    );
+	OSMO_ASSERT(crcx_scheduled(RTP_TO_CN));
+	OSMO_ASSERT(crcx_scheduled(RTP_TO_RAN));
+
+	btw("As soon as the MGW port towards CN is created, MNCC_SETUP_IND is triggered");
+	cc_to_mncc_expect_tx(IMSI, MNCC_SETUP_IND);
+	crcx_ok(RTP_TO_CN);
 	OSMO_ASSERT(cc_to_mncc_tx_confirmed);
 	mncc.callref = cc_to_mncc_tx_got_callref;
 
 	btw("MNCC replies with MNCC_RTP_CREATE, causing MGW endpoint CRCX to RAN");
-	expect_crcx(RTP_TO_RAN);
 	mncc_sends_to_cc(MNCC_RTP_CREATE, &mncc);
-	OSMO_ASSERT(crcx_scheduled(RTP_TO_RAN));
 
 	btw("MGW acknowledges the CRCX, triggering Assignment");
 	expect_iu_rab_assignment();
 	crcx_ok(RTP_TO_RAN);
 	OSMO_ASSERT(iu_rab_assignment_sent);
 
-	btw("Assignment succeeds, triggering CRCX to CN");
-	expect_crcx(RTP_TO_CN);
-	ms_sends_assignment_complete("AMR");
-	OSMO_ASSERT(crcx_scheduled(RTP_TO_CN));
-
-	btw("CN RTP address is available, trigger MNCC_RTP_CREATE");
+	btw("Assignment succeeds, triggering MNCC_RTP_CREATE ack to MNCC");
 	cc_to_mncc_expect_tx("", MNCC_RTP_CREATE);
-	crcx_ok(RTP_TO_CN);
+	ms_sends_assignment_complete("AMR");
+	OSMO_ASSERT(cc_to_mncc_tx_confirmed);
 
 	btw("MNCC says that's fine");
 	dtap_expect_tx("8302" /* CC: Call Proceeding */);
@@ -345,18 +346,17 @@
 	ms_sends_security_mode_complete(1);
 
 	btw("MS confirms call, we create a RAN-side RTP and forward MNCC_CALL_CONF_IND");
+	expect_crcx(RTP_TO_CN);
 	expect_crcx(RTP_TO_RAN);
 	cc_to_mncc_expect_tx(IMSI, MNCC_CALL_CONF_IND);
 	ms_sends_msg("8348" /* CC: Call Confirmed */
 		     "0406600402000581" /* Bearer Capability */
 		     "15020100" /* Call Control Capabilities */
 		     "40080402600400021f00" /* Supported Codec List */);
+	OSMO_ASSERT(crcx_scheduled(RTP_TO_CN));
 	OSMO_ASSERT(crcx_scheduled(RTP_TO_RAN));
 	OSMO_ASSERT(cc_to_mncc_tx_confirmed);
 
-	btw("MNCC sends MNCC_RTP_CREATE");
-	mncc_sends_to_cc(MNCC_RTP_CREATE, &mncc);
-
 	btw("MGW acknowledges the CRCX to RAN, triggering Assignment");
 	expect_iu_rab_assignment();
 	crcx_ok(RTP_TO_RAN);
@@ -365,21 +365,26 @@
 	btw("Assignment completes, triggering CRCX to CN");
 	expect_crcx(RTP_TO_CN);
 	ms_sends_assignment_complete("AMR");
-	OSMO_ASSERT(crcx_scheduled(RTP_TO_CN));
 
-	btw("When the CN side RTP address is known, send MNCC_RTP_CREATE");
+	btw("MNCC sends MNCC_RTP_CREATE, which first waits for the CN side RTP");
+	mncc_sends_to_cc(MNCC_RTP_CREATE, &mncc);
+
+	btw("When the CN side RTP address is known, ack MNCC_RTP_CREATE with full SDP");
 	cc_to_mncc_expect_tx("", MNCC_RTP_CREATE);
 	crcx_ok(RTP_TO_CN);
+	OSMO_ASSERT(cc_to_mncc_tx_confirmed);
 
 	fake_time_passes(1, 23);
 
 	cc_to_mncc_expect_tx("", MNCC_ALERT_IND);
 	ms_sends_msg("8381" /* CC: Alerting */);
+	OSMO_ASSERT(cc_to_mncc_tx_confirmed);
 
 	fake_time_passes(1, 23);
 
 	cc_to_mncc_expect_tx(IMSI, MNCC_SETUP_CNF);
 	ms_sends_msg("83c7" /* CC: Connect */);
+	OSMO_ASSERT(cc_to_mncc_tx_confirmed);
 
 	dtap_expect_tx("030f" /* CC: Connect Acknowledge */);
 	mncc_sends_to_cc(MNCC_SETUP_COMPL_REQ, &mncc);
@@ -466,16 +471,18 @@
 	ms_sends_security_mode_complete(1);
 
 	btw("MS confirms call, we create a RAN-side RTP and forward MNCC_CALL_CONF_IND");
+	expect_crcx(RTP_TO_CN);
 	expect_crcx(RTP_TO_RAN);
 	cc_to_mncc_expect_tx(IMSI, MNCC_CALL_CONF_IND);
 	ms_sends_msg("8348" /* CC: Call Confirmed */
 		     "0406600402000581" /* Bearer Capability */
 		     "15020100" /* Call Control Capabilities */
 		     "40080402600400021f00" /* Supported Codec List */);
+	OSMO_ASSERT(crcx_scheduled(RTP_TO_CN));
 	OSMO_ASSERT(crcx_scheduled(RTP_TO_RAN));
 	OSMO_ASSERT(cc_to_mncc_tx_confirmed);
 
-	btw("MNCC sends MNCC_RTP_CREATE");
+	btw("MNCC sends MNCC_RTP_CREATE, which first waits for the CN side RTP");
 	mncc_sends_to_cc(MNCC_RTP_CREATE, &mncc);
 
 	btw("MGW acknowledges the CRCX to RAN, triggering Assignment");
@@ -484,13 +491,13 @@
 	OSMO_ASSERT(iu_rab_assignment_sent);
 
 	btw("Assignment completes, triggering CRCX to CN");
-	expect_crcx(RTP_TO_CN);
 	ms_sends_assignment_complete("AMR");
-	OSMO_ASSERT(crcx_scheduled(RTP_TO_CN));
 
-	btw("When the CN side RTP address is known, send MNCC_RTP_CREATE");
+	btw("When the CN side RTP address is known, ack MNCC_RTP_CREATE with full SDP");
 	cc_to_mncc_expect_tx("", MNCC_RTP_CREATE);
 	crcx_ok(RTP_TO_CN);
+	OSMO_ASSERT(cc_to_mncc_tx_confirmed);
+
 	fake_time_passes(1, 23);
 
 	cc_to_mncc_expect_tx("", MNCC_ALERT_IND);
@@ -557,8 +564,9 @@
 
 	BTW("a call is initiated");
 
-	btw("SETUP gets forwarded to MNCC");
-	cc_to_mncc_expect_tx(IMSI, MNCC_SETUP_IND);
+	btw("CC SETUP causes CRCX towards CN");
+	expect_crcx(RTP_TO_CN);
+	expect_crcx(RTP_TO_RAN);
 	ms_sends_msg("0385" /* CC, seq = 2 -> 0x80 | CC Setup = 0x5 */
 		     "0406600402000581" /* Bearer Capability */
 		     "5e038121f3" /* Called Number BCD */
@@ -567,27 +575,27 @@
 		       "04026000" /* UMTS: AMR 2 | AMR */
 		       "00021f00" /* GSM: HR AMR | FR AMR | GSM EFR | GSM HR | GSM FR */
 		    );
+	OSMO_ASSERT(crcx_scheduled(RTP_TO_CN));
+	OSMO_ASSERT(crcx_scheduled(RTP_TO_RAN));
+
+	btw("As soon as the MGW port towards CN is created, MNCC_SETUP_IND is triggered");
+	cc_to_mncc_expect_tx(IMSI, MNCC_SETUP_IND);
+	crcx_ok(RTP_TO_CN);
 	OSMO_ASSERT(cc_to_mncc_tx_confirmed);
 	mncc.callref = cc_to_mncc_tx_got_callref;
 
 	btw("MNCC replies with MNCC_RTP_CREATE, causing MGW endpoint CRCX to RAN");
-	expect_crcx(RTP_TO_RAN);
 	mncc_sends_to_cc(MNCC_RTP_CREATE, &mncc);
-	OSMO_ASSERT(crcx_scheduled(RTP_TO_RAN));
 
 	btw("MGW acknowledges the CRCX, triggering Assignment");
 	expect_iu_rab_assignment();
 	crcx_ok(RTP_TO_RAN);
 	OSMO_ASSERT(iu_rab_assignment_sent);
 
-	btw("Assignment succeeds, triggering CRCX to CN");
-	expect_crcx(RTP_TO_CN);
-	ms_sends_assignment_complete("AMR");
-	OSMO_ASSERT(crcx_scheduled(RTP_TO_CN));
-
-	btw("CN RTP address is available, trigger MNCC_RTP_CREATE");
+	btw("Assignment succeeds, triggering MNCC_RTP_CREATE ack to MNCC");
 	cc_to_mncc_expect_tx("", MNCC_RTP_CREATE);
-	crcx_ok(RTP_TO_CN);
+	ms_sends_assignment_complete("AMR");
+	OSMO_ASSERT(cc_to_mncc_tx_confirmed);
 
 	btw("MNCC says that's fine");
 	dtap_expect_tx("8302" /* CC: Call Proceeding */);
@@ -604,7 +612,6 @@
 	expect_iu_release();
 	cc_to_mncc_expect_tx("", MNCC_REL_CNF);
 	ms_sends_msg("036a" /* CC: Release Complete */);
-	OSMO_ASSERT(cc_to_mncc_tx_confirmed);
 	OSMO_ASSERT(iu_release_sent);
 	OSMO_ASSERT(cc_to_mncc_tx_confirmed);
 
@@ -653,8 +660,9 @@
 
 	BTW("a call is initiated");
 
-	btw("SETUP gets forwarded to MNCC");
-	cc_to_mncc_expect_tx(IMSI, MNCC_SETUP_IND);
+	btw("CC SETUP causes CRCX towards CN");
+	expect_crcx(RTP_TO_CN);
+	expect_crcx(RTP_TO_RAN);
 	ms_sends_msg("0385" /* CC, seq = 2 -> 0x80 | CC Setup = 0x5 */
 		     "0406600402000581" /* Bearer Capability */
 		     "5e038121f3" /* Called Number BCD */
@@ -663,27 +671,27 @@
 		       "04026000" /* UMTS: AMR 2 | AMR */
 		       "00021f00" /* GSM: HR AMR | FR AMR | GSM EFR | GSM HR | GSM FR */
 		    );
+	OSMO_ASSERT(crcx_scheduled(RTP_TO_CN));
+	OSMO_ASSERT(crcx_scheduled(RTP_TO_RAN));
+
+	btw("As soon as the MGW port towards CN is created, MNCC_SETUP_IND is triggered");
+	cc_to_mncc_expect_tx(IMSI, MNCC_SETUP_IND);
+	crcx_ok(RTP_TO_CN);
 	OSMO_ASSERT(cc_to_mncc_tx_confirmed);
 	mncc.callref = cc_to_mncc_tx_got_callref;
 
 	btw("MNCC replies with MNCC_RTP_CREATE, causing MGW endpoint CRCX to RAN");
-	expect_crcx(RTP_TO_RAN);
 	mncc_sends_to_cc(MNCC_RTP_CREATE, &mncc);
-	OSMO_ASSERT(crcx_scheduled(RTP_TO_RAN));
 
 	btw("MGW acknowledges the CRCX, triggering Assignment");
 	expect_iu_rab_assignment();
 	crcx_ok(RTP_TO_RAN);
 	OSMO_ASSERT(iu_rab_assignment_sent);
 
-	btw("Assignment succeeds, triggering CRCX to CN");
-	expect_crcx(RTP_TO_CN);
-	ms_sends_assignment_complete("AMR");
-	OSMO_ASSERT(crcx_scheduled(RTP_TO_CN));
-
-	btw("CN RTP address is available, trigger MNCC_RTP_CREATE");
+	btw("Assignment succeeds, triggering MNCC_RTP_CREATE ack to MNCC");
 	cc_to_mncc_expect_tx("", MNCC_RTP_CREATE);
-	crcx_ok(RTP_TO_CN);
+	ms_sends_assignment_complete("AMR");
+	OSMO_ASSERT(cc_to_mncc_tx_confirmed);
 
 	btw("MNCC says that's fine");
 	dtap_expect_tx("8302" /* CC: Call Proceeding */);
diff --git a/tests/msc_vlr/msc_vlr_test_call.err b/tests/msc_vlr/msc_vlr_test_call.err
index 4cd2951..a8430e6 100644
--- a/tests/msc_vlr/msc_vlr_test_call.err
+++ b/tests/msc_vlr/msc_vlr_test_call.err
@@ -275,7 +275,7 @@
 
 
 - a call is initiated
-- SETUP gets forwarded to MNCC
+- CC SETUP causes CRCX towards CN
   MSC <--UTRAN-Iu-- MS: GSM48_MT_CC_SETUP
 DREF msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_AUTHENTICATED}: + rx_from_ms: now used by 2 (cm_service_cc,rx_from_ms)
 DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_AUTHENTICATED}: RAN decode: DTAP
@@ -288,44 +288,46 @@
 DREF msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: - cm_service_cc: now used by 2 (rx_from_ms,cc)
 DCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000001 tid-8) rx SETUP in state NULL
 DCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000001 tid-8) starting guard timer with 180 seconds
+DCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000001 tid-8) SETUP to 123
+DCC trans(CC:NULL 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})
 DCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000001 tid-8) new state NULL -> INITIATED
-DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000001 tid-8) SETUP to 123
-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})
-DMNCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000001 tid-8) tx MNCC_SETUP_IND (RTP=0.0.0.0:0{AMR:octet-align=1#112})
-  MSC --> MNCC: callref 0x80000001: MNCC_SETUP_IND
-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)
-- MNCC replies with MNCC_RTP_CREATE, causing MGW endpoint CRCX to RAN
-  MSC <-- MNCC: callref 0x80000001: MNCC_RTP_CREATE
-
-DMNCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000001 tid-8) rx MNCC_RTP_CREATE
 DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: Starting call assignment
 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)
+  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x80000001 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){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
+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
+DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){ESTABLISHING}: Received Event CALL_LEG_EV_RTP_STREAM_ADDR_AVAILABLE
+DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: Received Event MSC_EV_CALL_LEG_RTP_LOCAL_ADDR_AVAILABLE
+DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: MGW endpoint's RTP address available for the CI RTP_TO_CN: 10.23.23.1:23 (osmux=no:-2)
+DMNCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000001 tid-8) tx MNCC_SETUP_IND (RTP=10.23.23.1:23{AMR:octet-align=1#112})
+  MSC --> MNCC: callref 0x80000001: MNCC_SETUP_IND
+- MNCC replies with MNCC_RTP_CREATE, causing MGW endpoint CRCX to RAN
+  MSC <-- MNCC: callref 0x80000001: MNCC_RTP_CREATE
+
+DMNCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000001 tid-8) rx MNCC_RTP_CREATE
+DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: Assignment for this trans already started earlier
 - MGW acknowledges the CRCX, triggering Assignment
   MGW --CRCX OK to RTP_TO_RAN--> MSC
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){ESTABLISHING}: Received Event CALL_LEG_EV_RTP_STREAM_ADDR_AVAILABLE
 DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: Received Event MSC_EV_CALL_LEG_RTP_LOCAL_ADDR_AVAILABLE
 DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: MGW endpoint's RTP address available for the CI RTP_TO_RAN: 10.23.23.1:23 (osmux=no:-2)
-DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000001 tid-8) Sending Assignment Command with 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})
+DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000001 tid-8) Sending Assignment Command with codecs: 10.23.23.1:23{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})
 DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: RAN encode: ASSIGNMENT_COMMAND on UTRAN-Iu
 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 CRCX to CN
+- 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
-  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x80000001 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_CN:no-CI){UNINITIALIZED}: setting codecs to VND.3GPP.IUFP/16000#96
-- CN RTP address is available, trigger MNCC_RTP_CREATE
-  MGW --CRCX OK to RTP_TO_CN--> MSC
-DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){ESTABLISHING}: Received Event CALL_LEG_EV_RTP_STREAM_ADDR_AVAILABLE
-DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: Received Event MSC_EV_CALL_LEG_RTP_LOCAL_ADDR_AVAILABLE
-DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: MGW endpoint's RTP address available for the CI RTP_TO_CN: 10.23.23.1:23 (osmux=no:-2)
+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: VND.3GPP.IUFP/16000#96
 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{VND.3GPP.IUFP/16000#96} (from: assigned=VND.3GPP.IUFP/16000#96 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})
 DMNCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000001 tid-8) tx MNCC_RTP_CREATE (RTP=10.23.23.1:23{VND.3GPP.IUFP/16000#96})
   MSC --> MNCC: callref 0x80000001: MNCC_RTP_CREATE
@@ -427,12 +429,12 @@
 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_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-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 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
@@ -784,22 +786,21 @@
 DCC trans(CC:CALL_PRESENT IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) rx CALL_CONF in state CALL_PRESENT
 DCC trans(CC:CALL_PRESENT IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) stopping pending timer T303
 DCC trans(CC:CALL_PRESENT IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) starting timer T310 with 30 seconds
-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
 DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){MSC_A_ST_COMMUNICATING}: Starting call assignment
 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)
+  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x423 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){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 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
 DREF msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){MSC_A_ST_COMMUNICATING}: - rx_from_ms: now used by 1 (cc)
-- MNCC sends MNCC_RTP_CREATE
-  MSC <-- MNCC: callref 0x423: MNCC_RTP_CREATE
-
-DMNCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) rx MNCC_RTP_CREATE
-DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){MSC_A_ST_COMMUNICATING}: Assignment for this trans already started earlier
 - MGW acknowledges the CRCX to RAN, triggering Assignment
   MGW --CRCX OK to RTP_TO_RAN--> MSC
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){ESTABLISHING}: Received Event CALL_LEG_EV_RTP_STREAM_ADDR_AVAILABLE
@@ -812,11 +813,14 @@
 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
-  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x423 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_CN:no-CI){UNINITIALIZED}: setting codecs to VND.3GPP.IUFP/16000#96
-- When the CN side RTP address is known, send MNCC_RTP_CREATE
+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: VND.3GPP.IUFP/16000#96
+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
+- MNCC sends MNCC_RTP_CREATE, which first waits for the CN side RTP
+  MSC <-- MNCC: callref 0x423: MNCC_RTP_CREATE
+
+DMNCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) rx MNCC_RTP_CREATE
+DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){MSC_A_ST_COMMUNICATING}: Assignment for this trans already started earlier
+- When the CN side RTP address is known, ack MNCC_RTP_CREATE with full SDP
   MGW --CRCX OK to RTP_TO_CN--> MSC
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){ESTABLISHING}: Received Event CALL_LEG_EV_RTP_STREAM_ADDR_AVAILABLE
 DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){MSC_A_ST_COMMUNICATING}: Received Event MSC_EV_CALL_LEG_RTP_LOCAL_ADDR_AVAILABLE
@@ -907,12 +911,12 @@
 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_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-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 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
@@ -1264,18 +1268,22 @@
 DCC trans(CC:CALL_PRESENT IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) rx CALL_CONF in state CALL_PRESENT
 DCC trans(CC:CALL_PRESENT IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) stopping pending timer T303
 DCC trans(CC:CALL_PRESENT IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) starting timer T310 with 30 seconds
-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
 DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){MSC_A_ST_COMMUNICATING}: Starting call assignment
 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)
+  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x423 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){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 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
 DREF msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){MSC_A_ST_COMMUNICATING}: - rx_from_ms: now used by 1 (cc)
-- MNCC sends MNCC_RTP_CREATE
+- MNCC sends MNCC_RTP_CREATE, which first waits for the CN side RTP
   MSC <-- MNCC: callref 0x423: MNCC_RTP_CREATE
 v=0
 o=OsmoMSC 0 0 IN IP4 10.23.23.1
@@ -1301,11 +1309,9 @@
 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
-  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x423 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_CN:no-CI){UNINITIALIZED}: setting codecs to VND.3GPP.IUFP/16000#96
-- When the CN side RTP address is known, send MNCC_RTP_CREATE
+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: VND.3GPP.IUFP/16000#96
+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
+- When the CN side RTP address is known, ack MNCC_RTP_CREATE with full SDP
   MGW --CRCX OK to RTP_TO_CN--> MSC
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){ESTABLISHING}: Received Event CALL_LEG_EV_RTP_STREAM_ADDR_AVAILABLE
 DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){MSC_A_ST_COMMUNICATING}: Received Event MSC_EV_CALL_LEG_RTP_LOCAL_ADDR_AVAILABLE
@@ -1351,12 +1357,12 @@
 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_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-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 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
@@ -1671,7 +1677,7 @@
 
 
 - a call is initiated
-- SETUP gets forwarded to MNCC
+- CC SETUP causes CRCX towards CN
   MSC <--UTRAN-Iu-- MS: GSM48_MT_CC_SETUP
 DREF msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_AUTHENTICATED}: + rx_from_ms: now used by 2 (cm_service_cc,rx_from_ms)
 DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_AUTHENTICATED}: RAN decode: DTAP
@@ -1684,44 +1690,46 @@
 DREF msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: - cm_service_cc: now used by 2 (rx_from_ms,cc)
 DCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000002 tid-8) rx SETUP in state NULL
 DCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000002 tid-8) starting guard timer with 180 seconds
+DCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000002 tid-8) SETUP to 123
+DCC trans(CC:NULL 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})
 DCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000002 tid-8) new state NULL -> INITIATED
-DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000002 tid-8) SETUP to 123
-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})
-DMNCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000002 tid-8) tx MNCC_SETUP_IND (RTP=0.0.0.0:0{AMR:octet-align=1#112})
-  MSC --> MNCC: callref 0x80000002: MNCC_SETUP_IND
-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)
-- MNCC replies with MNCC_RTP_CREATE, causing MGW endpoint CRCX to RAN
-  MSC <-- MNCC: callref 0x80000002: MNCC_RTP_CREATE
-
-DMNCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000002 tid-8) rx MNCC_RTP_CREATE
 DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: Starting call assignment
 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)
+  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x80000002 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){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
+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
+DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){ESTABLISHING}: Received Event CALL_LEG_EV_RTP_STREAM_ADDR_AVAILABLE
+DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: Received Event MSC_EV_CALL_LEG_RTP_LOCAL_ADDR_AVAILABLE
+DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: MGW endpoint's RTP address available for the CI RTP_TO_CN: 10.23.23.1:23 (osmux=no:-2)
+DMNCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000002 tid-8) tx MNCC_SETUP_IND (RTP=10.23.23.1:23{AMR:octet-align=1#112})
+  MSC --> MNCC: callref 0x80000002: MNCC_SETUP_IND
+- MNCC replies with MNCC_RTP_CREATE, causing MGW endpoint CRCX to RAN
+  MSC <-- MNCC: callref 0x80000002: MNCC_RTP_CREATE
+
+DMNCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000002 tid-8) rx MNCC_RTP_CREATE
+DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: Assignment for this trans already started earlier
 - MGW acknowledges the CRCX, triggering Assignment
   MGW --CRCX OK to RTP_TO_RAN--> MSC
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){ESTABLISHING}: Received Event CALL_LEG_EV_RTP_STREAM_ADDR_AVAILABLE
 DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: Received Event MSC_EV_CALL_LEG_RTP_LOCAL_ADDR_AVAILABLE
 DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: MGW endpoint's RTP address available for the CI RTP_TO_RAN: 10.23.23.1:23 (osmux=no:-2)
-DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000002 tid-8) Sending Assignment Command with 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})
+DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000002 tid-8) Sending Assignment Command with codecs: 10.23.23.1:23{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})
 DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: RAN encode: ASSIGNMENT_COMMAND on UTRAN-Iu
 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 CRCX to CN
+- 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
-  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x80000002 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_CN:no-CI){UNINITIALIZED}: setting codecs to VND.3GPP.IUFP/16000#96
-- CN RTP address is available, trigger MNCC_RTP_CREATE
-  MGW --CRCX OK to RTP_TO_CN--> MSC
-DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){ESTABLISHING}: Received Event CALL_LEG_EV_RTP_STREAM_ADDR_AVAILABLE
-DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: Received Event MSC_EV_CALL_LEG_RTP_LOCAL_ADDR_AVAILABLE
-DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: MGW endpoint's RTP address available for the CI RTP_TO_CN: 10.23.23.1:23 (osmux=no:-2)
+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: VND.3GPP.IUFP/16000#96
 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{VND.3GPP.IUFP/16000#96} (from: assigned=VND.3GPP.IUFP/16000#96 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})
 DMNCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000002 tid-8) tx MNCC_RTP_CREATE (RTP=10.23.23.1:23{VND.3GPP.IUFP/16000#96})
   MSC --> MNCC: callref 0x80000002: MNCC_RTP_CREATE
@@ -1780,12 +1788,12 @@
 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_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-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 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
@@ -2099,7 +2107,7 @@
 
 
 - a call is initiated
-- SETUP gets forwarded to MNCC
+- CC SETUP causes CRCX towards CN
   MSC <--UTRAN-Iu-- MS: GSM48_MT_CC_SETUP
 DREF msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_AUTHENTICATED}: + rx_from_ms: now used by 2 (cm_service_cc,rx_from_ms)
 DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_AUTHENTICATED}: RAN decode: DTAP
@@ -2112,44 +2120,46 @@
 DREF msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: - cm_service_cc: now used by 2 (rx_from_ms,cc)
 DCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000003 tid-8) rx SETUP in state NULL
 DCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000003 tid-8) starting guard timer with 180 seconds
+DCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000003 tid-8) SETUP to 123
+DCC trans(CC:NULL 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})
 DCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000003 tid-8) new state NULL -> INITIATED
-DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000003 tid-8) SETUP to 123
-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})
-DMNCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000003 tid-8) tx MNCC_SETUP_IND (RTP=0.0.0.0:0{AMR:octet-align=1#112})
-  MSC --> MNCC: callref 0x80000003: MNCC_SETUP_IND
-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)
-- MNCC replies with MNCC_RTP_CREATE, causing MGW endpoint CRCX to RAN
-  MSC <-- MNCC: callref 0x80000003: MNCC_RTP_CREATE
-
-DMNCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000003 tid-8) rx MNCC_RTP_CREATE
 DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: Starting call assignment
 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)
+  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x80000003 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){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
+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
+DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){ESTABLISHING}: Received Event CALL_LEG_EV_RTP_STREAM_ADDR_AVAILABLE
+DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: Received Event MSC_EV_CALL_LEG_RTP_LOCAL_ADDR_AVAILABLE
+DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: MGW endpoint's RTP address available for the CI RTP_TO_CN: 10.23.23.1:23 (osmux=no:-2)
+DMNCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000003 tid-8) tx MNCC_SETUP_IND (RTP=10.23.23.1:23{AMR:octet-align=1#112})
+  MSC --> MNCC: callref 0x80000003: MNCC_SETUP_IND
+- MNCC replies with MNCC_RTP_CREATE, causing MGW endpoint CRCX to RAN
+  MSC <-- MNCC: callref 0x80000003: MNCC_RTP_CREATE
+
+DMNCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000003 tid-8) rx MNCC_RTP_CREATE
+DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: Assignment for this trans already started earlier
 - MGW acknowledges the CRCX, triggering Assignment
   MGW --CRCX OK to RTP_TO_RAN--> MSC
 DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){ESTABLISHING}: Received Event CALL_LEG_EV_RTP_STREAM_ADDR_AVAILABLE
 DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: Received Event MSC_EV_CALL_LEG_RTP_LOCAL_ADDR_AVAILABLE
 DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: MGW endpoint's RTP address available for the CI RTP_TO_RAN: 10.23.23.1:23 (osmux=no:-2)
-DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000003 tid-8) Sending Assignment Command with 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})
+DCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000003 tid-8) Sending Assignment Command with codecs: 10.23.23.1:23{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})
 DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: RAN encode: ASSIGNMENT_COMMAND on UTRAN-Iu
 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 CRCX to CN
+- 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
-  MGW <--CRCX to RTP_TO_CN-- MSC: callref=0x80000003 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_CN:no-CI){UNINITIALIZED}: setting codecs to VND.3GPP.IUFP/16000#96
-- CN RTP address is available, trigger MNCC_RTP_CREATE
-  MGW --CRCX OK to RTP_TO_CN--> MSC
-DCC call_leg(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){ESTABLISHING}: Received Event CALL_LEG_EV_RTP_STREAM_ADDR_AVAILABLE
-DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: Received Event MSC_EV_CALL_LEG_RTP_LOCAL_ADDR_AVAILABLE
-DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ){MSC_A_ST_COMMUNICATING}: MGW endpoint's RTP address available for the CI RTP_TO_CN: 10.23.23.1:23 (osmux=no:-2)
+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: VND.3GPP.IUFP/16000#96
 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{VND.3GPP.IUFP/16000#96} (from: assigned=VND.3GPP.IUFP/16000#96 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})
 DMNCC trans(CC:INITIATED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:CM_SERVICE_REQ callref-0x80000003 tid-8) tx MNCC_RTP_CREATE (RTP=10.23.23.1:23{VND.3GPP.IUFP/16000#96})
   MSC --> MNCC: callref 0x80000003: MNCC_RTP_CREATE
@@ -2205,12 +2215,12 @@
 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_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-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 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