[codecs filter] send + receive SDP via MNCC

Transmit and receive full SDP information via MNCC, to accurately pass
codecs choices between the call legs.

In msc_vlr_test_call.c test_call_mt(), show that when receiving MNCC,
the codec information in SDP overrules the Bearer Cap codec information
-- we expect to still receive inaccurate Bearer Cap from e.g.
osmo-sip-connector, because we have chosen to add SDP to MNCC instead of
trying to fix the codecs represented in Bearer Cap.

For internal MNCC, the MT call leg now knows which codec the MO has
chosen and assigned.

For external MNCC, osmo-sip-connector receives SDP about our codecs
choices and sends it in SIP messages, and we also receive the full SDP
information from the remote SIP leg.

Update the SDP in codec_filter every time it is received, to always have
the latest SDP information from the remote leg.

 CC              MNCC
 | ---ALERTING--> |     add local side SDP to MNCC msg
 | <--ALERTING--- |     store remote side SDP
 | <--SETUP-RESP- |     store remote side SDP
 | --SETUP-CNF--> |     add local side SDP to MNCC msg
 | -RTP-CREATE--> |     use codec_filter, add local side SDP to MNCC msg
 | <-RTP-CONNECT- |     store remote side SDP

There still is one problem: when initiating MNCC, we do not yet know the
RTP address and port to be used for the CN side, because the CN CRCX
happens later. So far we send 0.0.0.0:0 as RTP endpoint in the SDP,
until the CN CRCX is done. A subsequent patch moves CN CRCX to an
earlier time, adding proper RTP information right from the start.

Related: SYS#5066
Change-Id: Ie0668c0e079ec69da1532b52d00621efe114fc2c
diff --git a/tests/msc_vlr/msc_vlr_test_call.err b/tests/msc_vlr/msc_vlr_test_call.err
index e87c25e..a86a2b0 100644
--- a/tests/msc_vlr/msc_vlr_test_call.err
+++ b/tests/msc_vlr/msc_vlr_test_call.err
@@ -291,7 +291,7 @@
 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
+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
@@ -325,8 +325,8 @@
 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) codecs: :0{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)
+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
 - MNCC says that's fine
   MSC <-- MNCC: callref 0x80000001: MNCC_CALL_PROC_REQ
@@ -665,11 +665,20 @@
 
 - after a while, MNCC asks us to setup a call, causing Paging
   MSC <-- MNCC: callref 0x423: MNCC_SETUP_REQ
+v=0

+o=OsmoMSC 0 0 IN IP4 10.23.23.1

+s=GSM Call

+c=IN IP4 10.23.23.1

+t=0 0

+m=audio 23 RTP/AVP 112

+a=rtpmap:112 AMR/8000

+a=fmtp:112 octet-align=1

+a=ptime:20

 
 DREF VLR subscr IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 + mncc_tx_to_gsm_cc: now used by 2 (attached,mncc_tx_to_gsm_cc)
 DREF VLR subscr IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 + CC: now used by 3 (attached,mncc_tx_to_gsm_cc,CC)
 DCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 callref-0x423 tid-255) New transaction
-DMNCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 callref-0x423 tid-255) rx MNCC_SETUP_REQ
+DMNCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 callref-0x423 tid-255) rx MNCC_SETUP_REQ (RTP=10.23.23.1:23{AMR:octet-align=1#112})
 DPAG Paging: IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 for MNCC: establish call: Starting paging
   paging request (CALL_CONVERSATIONAL) to IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 on UTRAN-Iu
   strcmp(paging_expecting_imsi, vsub->imsi) == 0
@@ -757,12 +766,11 @@
 DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){MSC_A_ST_AUTHENTICATED}: Received Event MSC_A_EV_TRANSACTION_ACCEPTED
 DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){MSC_A_ST_AUTHENTICATED}: state_chg to MSC_A_ST_COMMUNICATING
 DCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) starting timer T303 with 30 seconds
-DCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) Got no information of remote audio codecs: neither SDP nor Bearer Capability. Trying anyway.
-DCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) codecs: :0{AMR:octet-align=1#112,AMR-WB/16000:octet-align=1#113} (from: 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: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} 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:PAGING_RESP callref-0x423 tid-0) new state NULL -> CALL_PRESENT
 DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){MSC_A_ST_COMMUNICATING}: Sending DTAP: CC GSM48_MT_CC_SETUP
 DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){MSC_A_ST_COMMUNICATING}: RAN encode: DTAP on UTRAN-Iu
-- DTAP --UTRAN-Iu--> MS: GSM48_MT_CC_SETUP: 030504076004050b060887
+- DTAP --UTRAN-Iu--> MS: GSM48_MT_CC_SETUP: 030504046004058b
 - DTAP matches expected message
 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
 DREF VLR subscr IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 - Paging: now used by 3 (attached,CC,active-conn)
@@ -811,8 +819,8 @@
 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
 DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){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:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) codecs: :0{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:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) tx MNCC_RTP_CREATE (RTP=10.23.23.1:23)
+DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) codecs: 10.23.23.1:23{VND.3GPP.IUFP/16000#96} (from: assigned=VND.3GPP.IUFP/16000#96 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})
+DMNCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) tx MNCC_RTP_CREATE (RTP=10.23.23.1:23{VND.3GPP.IUFP/16000#96})
   MSC --> MNCC: callref 0x423: MNCC_RTP_CREATE
 - Total time passed: 1.000023 s
   MSC <--UTRAN-Iu-- MS: GSM48_MT_CC_ALERTING
@@ -823,7 +831,8 @@
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) stopping pending timer T310
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) starting timer T301 with 180 seconds
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) new state MO_TERM_CALL_CONF -> CALL_RECEIVED
-DMNCC trans(CC:CALL_RECEIVED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) tx MNCC_ALERT_IND
+DCC trans(CC:CALL_RECEIVED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) codecs: 10.23.23.1:23{VND.3GPP.IUFP/16000#96} (from: assigned=VND.3GPP.IUFP/16000#96 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})
+DMNCC trans(CC:CALL_RECEIVED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) tx MNCC_ALERT_IND (RTP=10.23.23.1:23{VND.3GPP.IUFP/16000#96})
   MSC --> MNCC: callref 0x423: MNCC_ALERT_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)
 - Total time passed: 2.000046 s
@@ -834,7 +843,7 @@
 DCC trans(CC:CALL_RECEIVED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) rx CONNECT in state CALL_RECEIVED
 DCC trans(CC:CALL_RECEIVED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) stopping pending timer T301
 DCC trans(CC:CALL_RECEIVED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) new state CALL_RECEIVED -> CONNECT_REQUEST
-DMNCC trans(CC:CONNECT_REQUEST IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) tx MNCC_SETUP_CNF
+DMNCC trans(CC:CONNECT_REQUEST IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) tx MNCC_SETUP_CNF (RTP=10.23.23.1:23{VND.3GPP.IUFP/16000#96})
   MSC --> MNCC: callref 0x423: MNCC_SETUP_CNF
 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)
   MSC <-- MNCC: callref 0x423: MNCC_SETUP_COMPL_REQ
@@ -1135,11 +1144,20 @@
 
 - after a while, MNCC asks us to setup a call, causing Paging
   MSC <-- MNCC: callref 0x423: MNCC_SETUP_REQ
+v=0

+o=OsmoMSC 0 0 IN IP4 10.23.23.1

+s=GSM Call

+c=IN IP4 10.23.23.1

+t=0 0

+m=audio 23 RTP/AVP 112

+a=rtpmap:112 AMR/8000

+a=fmtp:112 octet-align=1

+a=ptime:20

 
 DREF VLR subscr IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 + mncc_tx_to_gsm_cc: now used by 2 (attached,mncc_tx_to_gsm_cc)
 DREF VLR subscr IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 + CC: now used by 3 (attached,mncc_tx_to_gsm_cc,CC)
 DCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 callref-0x423 tid-255) New transaction
-DMNCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 callref-0x423 tid-255) rx MNCC_SETUP_REQ
+DMNCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 callref-0x423 tid-255) rx MNCC_SETUP_REQ (RTP=10.23.23.1:23{AMR:octet-align=1#112})
 DPAG Paging: IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 for MNCC: establish call: Starting paging
   paging request (CALL_CONVERSATIONAL) to IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 on UTRAN-Iu
   strcmp(paging_expecting_imsi, vsub->imsi) == 0
@@ -1227,12 +1245,11 @@
 DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){MSC_A_ST_AUTHENTICATED}: Received Event MSC_A_EV_TRANSACTION_ACCEPTED
 DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){MSC_A_ST_AUTHENTICATED}: state_chg to MSC_A_ST_COMMUNICATING
 DCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) starting timer T303 with 30 seconds
-DCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) Got no information of remote audio codecs: neither SDP nor Bearer Capability. Trying anyway.
-DCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) codecs: :0{AMR:octet-align=1#112,AMR-WB/16000:octet-align=1#113} (from: 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: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} 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:PAGING_RESP callref-0x423 tid-0) new state NULL -> CALL_PRESENT
 DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){MSC_A_ST_COMMUNICATING}: Sending DTAP: CC GSM48_MT_CC_SETUP
 DMSC msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){MSC_A_ST_COMMUNICATING}: RAN encode: DTAP on UTRAN-Iu
-- DTAP --UTRAN-Iu--> MS: GSM48_MT_CC_SETUP: 030504076004050b060887
+- DTAP --UTRAN-Iu--> MS: GSM48_MT_CC_SETUP: 030504046004058b
 - DTAP matches expected message
 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
 DREF VLR subscr IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 - Paging: now used by 3 (attached,CC,active-conn)
@@ -1258,6 +1275,15 @@
 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
+v=0

+o=OsmoMSC 0 0 IN IP4 10.23.23.1

+s=GSM Call

+c=IN IP4 10.23.23.1

+t=0 0

+m=audio 23 RTP/AVP 112

+a=rtpmap:112 AMR/8000

+a=fmtp:112 octet-align=1

+a=ptime:20

 
 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
@@ -1281,8 +1307,8 @@
 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
 DIUCS msc_a(IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP){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:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) codecs: :0{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:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) tx MNCC_RTP_CREATE (RTP=10.23.23.1:23)
+DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) codecs: 10.23.23.1:23{VND.3GPP.IUFP/16000#96} (from: assigned=VND.3GPP.IUFP/16000#96 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})
+DMNCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) tx MNCC_RTP_CREATE (RTP=10.23.23.1:23{VND.3GPP.IUFP/16000#96})
   MSC --> MNCC: callref 0x423: MNCC_RTP_CREATE
 - Total time passed: 1.000023 s
   MSC <--UTRAN-Iu-- MS: GSM48_MT_CC_ALERTING
@@ -1293,7 +1319,8 @@
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) stopping pending timer T310
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) starting timer T301 with 180 seconds
 DCC trans(CC:MO_TERM_CALL_CONF IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) new state MO_TERM_CALL_CONF -> CALL_RECEIVED
-DMNCC trans(CC:CALL_RECEIVED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) tx MNCC_ALERT_IND
+DCC trans(CC:CALL_RECEIVED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) codecs: 10.23.23.1:23{VND.3GPP.IUFP/16000#96} (from: assigned=VND.3GPP.IUFP/16000#96 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})
+DMNCC trans(CC:CALL_RECEIVED IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAGING_RESP callref-0x423 tid-0) tx MNCC_ALERT_IND (RTP=10.23.23.1:23{VND.3GPP.IUFP/16000#96})
   MSC --> MNCC: callref 0x423: MNCC_ALERT_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)
 - Total time passed: 16.000046 s
@@ -1657,7 +1684,7 @@
 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
+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
@@ -1691,8 +1718,8 @@
 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) codecs: :0{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)
+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
 - MNCC says that's fine
   MSC <-- MNCC: callref 0x80000002: MNCC_CALL_PROC_REQ
@@ -2084,7 +2111,7 @@
 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
+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
@@ -2118,8 +2145,8 @@
 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) codecs: :0{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)
+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
 - MNCC says that's fine
   MSC <-- MNCC: callref 0x80000003: MNCC_CALL_PROC_REQ