diff --git a/tests/msc_vlr/msc_vlr_test_no_authen.err b/tests/msc_vlr/msc_vlr_test_no_authen.err
index 99454fc..015e55b 100644
--- a/tests/msc_vlr/msc_vlr_test_no_authen.err
+++ b/tests/msc_vlr/msc_vlr_test_no_authen.err
@@ -1,9 +1,9 @@
 ===== test_no_authen
 - Location Update request causes a GSUP LU request to HLR
-  rx from MS: pdisc=0x05 msg_type=0x08
+  MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_LOC_UPD_REQUEST
   new conn
 DREF unknown: MSC conn use + 1 == 1
-DRLL Dispatching 04.08 message, pdisc=5
+DRLL Dispatching 04.08 message GSM48_MT_MM_LOC_UPD_REQUEST (0x5:0x8)
 DREF unknown: MSC conn use + 1 == 2
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_INIT}: Allocated
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_INIT}: Received Event SUBSCR_CONN_E_START
@@ -46,14 +46,14 @@
 - having received subscriber data does not mean acceptance
 msc_subscr_conn_is_accepted() == false
   requests shall be thwarted
-DRLL Dispatching 04.08 message, pdisc=3
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x03 msg_type=0x05
-DRLL Dispatching 04.08 message, pdisc=5
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x05 msg_type=0x33
-DRLL Dispatching 04.08 message, pdisc=6
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x06 msg_type=0x19
-DRLL Dispatching 04.08 message, pdisc=9
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x09 msg_type=0x01
+DRLL Dispatching 04.08 message GSM48_MT_CC_SETUP (0x3:0x5)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_MT_CC_SETUP
+DRLL Dispatching 04.08 message unknown 0x33 (0x5:0x33)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: unknown 0x33
+DRLL Dispatching 04.08 message GSM48_MT_RR_SYSINFO_1 (0x6:0x19)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_MT_RR_SYSINFO_1
+DRLL Dispatching 04.08 message GSM48_PDISC_SMS:0x01 (0x9:0x1)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_PDISC_SMS:0x01
   lu_result_sent == 0
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
@@ -115,10 +115,10 @@
   llist_count(&net->subscr_conns) == 0
 ---
 - after a while, a new conn sends a CM Service Request
-  rx from MS: pdisc=0x05 msg_type=0x24
+  MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_CM_SERV_REQ
   new conn
 DREF unknown: MSC conn use + 1 == 1
-DRLL Dispatching 04.08 message, pdisc=5
+DRLL Dispatching 04.08 message GSM48_MT_MM_CM_SERV_REQ (0x5:0x24)
 DMM <- CM SERVICE REQUEST serv_type=0x08 MI(IMSI)=901700000004620
 DREF unknown: MSC conn use + 1 == 2
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_INIT}: Allocated
@@ -156,16 +156,16 @@
 - a USSD request is serviced
   expecting USSD:
   Your extension is 46071
-  rx from MS: pdisc=0x0b msg_type=0x3b
+  MSC <--RAN_GERAN_A-- MS: GSM48_PDISC_NC_SS:0x3b
 DREF MSISDN:46071: MSC conn use + 1 == 2
-DRLL Dispatching 04.08 message, pdisc=11
-DMM MSISDN:46071 pdisc=11 msg_type=0x3b: received_cm_service_request changes to false
+DRLL Dispatching 04.08 message GSM48_PDISC_NC_SS:0x3b (0xb:0x3b)
+DMM MSISDN:46071: rx msg GSM48_PDISC_NC_SS:0x3b: received_cm_service_request changes to false
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_COMMUNICATING
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_COMMUNICATING
 DMM USSD: Own number requested
 DMM MSISDN:46071: MSISDN = 46071
 DMSC msc_tx 43 bytes to MSISDN:46071 via RAN_GERAN_A
-- DTAP --RAN_GERAN_A--> MS: 8b2a1c27a225020100302002013b301b04010f0416d9775d0e2ae3e965f73cfd7683d27310cd06bbc51a0d
+- DTAP --RAN_GERAN_A--> MS: GSM48_PDISC_NC_SS:0x2a: 8b2a1c27a225020100302002013b301b04010f0416d9775d0e2ae3e965f73cfd7683d27310cd06bbc51a0d
 - DTAP matches expected message
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_BUMP
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_COMMUNICATING}: bump: releasing conn
@@ -203,10 +203,10 @@
   llist_count(&vsub->cs.requests) == 1
 DREF VLR subscr MSISDN:46071 usage decreases to: 3
 - MS replies with Paging Response, we deliver the SMS
-  rx from MS: pdisc=0x06 msg_type=0x27
+  MSC <--RAN_GERAN_A-- MS: GSM48_MT_RR_PAG_RESP
   new conn
 DREF unknown: MSC conn use + 1 == 1
-DRLL Dispatching 04.08 message, pdisc=6
+DRLL Dispatching 04.08 message GSM48_MT_RR_PAG_RESP (0x6:0x27)
 DRR PAGING RESPONSE: MI(IMSI)=901700000004620
 DREF unknown: MSC conn use + 1 == 2
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_INIT}: Allocated
@@ -236,7 +236,7 @@
 DREF VLR subscr MSISDN:46071 usage increases to: 6
 DREF MSISDN:46071: MSC conn use + 1 == 3
 DMSC msc_tx 91 bytes to MSISDN:46071 via RAN_GERAN_A
-- DTAP --RAN_GERAN_A--> MS: 09015801000791447758100650004c0005806470f1000007101000000000445079da1e1ee7416937485e9ea7c965373d1d6683c270383b3d0ed3d36ff71c949e83c22072799e9687c5ec32a81d96afcbf4b4fb0c7ac3e9e9b7db05
+- DTAP --RAN_GERAN_A--> MS: GSM48_PDISC_SMS:0x01: 09015801000791447758100650004c0005806470f1000007101000000000445079da1e1ee7416937485e9ea7c965373d1d6683c270383b3d0ed3d36ff71c949e83c22072799e9687c5ec32a81d96afcbf4b4fb0c7ac3e9e9b7db05
 - DTAP matches expected message
 DREF VLR subscr MSISDN:46071 usage decreases to: 5
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_BUMP
@@ -254,9 +254,9 @@
 - conn is still open to wait for SMS ack dance
   llist_count(&net->subscr_conns) == 1
 - MS replies with CP-ACK for received SMS
-  rx from MS: pdisc=0x89 msg_type=0x04
+  MSC <--RAN_GERAN_A-- MS: GSM48_PDISC_SMS:0x04
 DREF MSISDN:46071: MSC conn use + 1 == 3
-DRLL Dispatching 04.08 message, pdisc=9
+DRLL Dispatching 04.08 message GSM48_PDISC_SMS:0x04 (0x9:0x4)
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_COMMUNICATING
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_COMMUNICATING
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_BUMP
@@ -264,12 +264,12 @@
 DREF MSISDN:46071: MSC conn use - 1 == 2
   llist_count(&net->subscr_conns) == 1
 - MS also sends RP-ACK, MSC in turn sends CP-ACK for that
-  rx from MS: pdisc=0x89 msg_type=0x01
+  MSC <--RAN_GERAN_A-- MS: GSM48_PDISC_SMS:0x01
 DREF MSISDN:46071: MSC conn use + 1 == 3
-DRLL Dispatching 04.08 message, pdisc=9
+DRLL Dispatching 04.08 message GSM48_PDISC_SMS:0x01 (0x9:0x1)
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_COMMUNICATING
 DMSC msc_tx 2 bytes to MSISDN:46071 via RAN_GERAN_A
-- DTAP --RAN_GERAN_A--> MS: 0904
+- DTAP --RAN_GERAN_A--> MS: GSM48_PDISC_SMS:0x04: 0904
 - DTAP matches expected message
 DREF VLR subscr MSISDN:46071 usage decreases to: 3
 DREF VLR subscr MSISDN:46071 usage decreases to: 2
@@ -294,10 +294,10 @@
   llist_count(&net->subscr_conns) == 0
 ---
 - subscriber detaches
-  rx from MS: pdisc=0x05 msg_type=0x01
+  MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_IMSI_DETACH_IND
   new conn
 DREF unknown: MSC conn use + 1 == 1
-DRLL Dispatching 04.08 message, pdisc=5
+DRLL Dispatching 04.08 message GSM48_MT_MM_IMSI_DETACH_IND (0x5:0x1)
 DMM IMSI DETACH INDICATION: MI(IMSI)=901700000004620
 DREF VLR subscr MSISDN:46071 usage increases to: 2
 DMM IMSI DETACH for MSISDN:46071
@@ -315,10 +315,10 @@
 
 ===== test_no_authen_tmsi
 - Location Update request causes a GSUP LU request to HLR
-  rx from MS: pdisc=0x05 msg_type=0x08
+  MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_LOC_UPD_REQUEST
   new conn
 DREF unknown: MSC conn use + 1 == 1
-DRLL Dispatching 04.08 message, pdisc=5
+DRLL Dispatching 04.08 message GSM48_MT_MM_LOC_UPD_REQUEST (0x5:0x8)
 DREF unknown: MSC conn use + 1 == 2
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_INIT}: Allocated
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_INIT}: Received Event SUBSCR_CONN_E_START
@@ -361,14 +361,14 @@
 - having received subscriber data does not mean acceptance
 msc_subscr_conn_is_accepted() == false
   requests shall be thwarted
-DRLL Dispatching 04.08 message, pdisc=3
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x03 msg_type=0x05
-DRLL Dispatching 04.08 message, pdisc=5
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x05 msg_type=0x33
-DRLL Dispatching 04.08 message, pdisc=6
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x06 msg_type=0x19
-DRLL Dispatching 04.08 message, pdisc=9
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x09 msg_type=0x01
+DRLL Dispatching 04.08 message GSM48_MT_CC_SETUP (0x3:0x5)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_MT_CC_SETUP
+DRLL Dispatching 04.08 message unknown 0x33 (0x5:0x33)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: unknown 0x33
+DRLL Dispatching 04.08 message GSM48_MT_RR_SYSINFO_1 (0x6:0x19)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_MT_RR_SYSINFO_1
+DRLL Dispatching 04.08 message GSM48_PDISC_SMS:0x01 (0x9:0x1)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_PDISC_SMS:0x01
   lu_result_sent == 0
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
@@ -406,14 +406,14 @@
   lu_result_sent == 1
 msc_subscr_conn_is_accepted() == false
   requests shall be thwarted
-DRLL Dispatching 04.08 message, pdisc=3
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x03 msg_type=0x05
-DRLL Dispatching 04.08 message, pdisc=5
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x05 msg_type=0x33
-DRLL Dispatching 04.08 message, pdisc=6
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x06 msg_type=0x19
-DRLL Dispatching 04.08 message, pdisc=9
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x09 msg_type=0x01
+DRLL Dispatching 04.08 message GSM48_MT_CC_SETUP (0x3:0x5)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_MT_CC_SETUP
+DRLL Dispatching 04.08 message unknown 0x33 (0x5:0x33)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: unknown 0x33
+DRLL Dispatching 04.08 message GSM48_MT_RR_SYSINFO_1 (0x6:0x19)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_MT_RR_SYSINFO_1
+DRLL Dispatching 04.08 message GSM48_PDISC_SMS:0x01 (0x9:0x1)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_PDISC_SMS:0x01
 - even though the TMSI is not acked, we can already find the subscr with it
 DREF VLR subscr MSISDN:46071 usage increases to: 2
   vsub != NULL == 1
@@ -422,9 +422,9 @@
   vsub->tmsi == 0xffffffff
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 - MS sends TMSI Realloc Complete
-  rx from MS: pdisc=0x05 msg_type=0x5b
+  MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_TMSI_REALL_COMPL
 DREF MSISDN:46071: MSC conn use + 1 == 2
-DRLL Dispatching 04.08 message, pdisc=5
+DRLL Dispatching 04.08 message GSM48_MT_MM_TMSI_REALL_COMPL (0x5:0x1b)
 DMM TMSI Reallocation Completed. Subscriber: MSISDN:46071
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_NEW_TMSI_ACK
 DVLR lu_compl_vlr_fsm(901700000004620){LU_COMPL_VLR_S_WAIT_TMSI_CNF}: Received Event LU_COMPL_VLR_E_NEW_TMSI_ACK
@@ -466,10 +466,10 @@
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 ---
 - after a while, a new conn sends a CM Service Request using above TMSI
-  rx from MS: pdisc=0x05 msg_type=0x24
+  MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_CM_SERV_REQ
   new conn
 DREF unknown: MSC conn use + 1 == 1
-DRLL Dispatching 04.08 message, pdisc=5
+DRLL Dispatching 04.08 message GSM48_MT_MM_CM_SERV_REQ (0x5:0x24)
 DMM <- CM SERVICE REQUEST serv_type=0x08 MI(TMSI)=50462976
 DREF unknown: MSC conn use + 1 == 2
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_INIT}: Allocated
@@ -507,16 +507,16 @@
 - a USSD request is serviced
   expecting USSD:
   Your extension is 46071
-  rx from MS: pdisc=0x0b msg_type=0x3b
+  MSC <--RAN_GERAN_A-- MS: GSM48_PDISC_NC_SS:0x3b
 DREF MSISDN:46071: MSC conn use + 1 == 2
-DRLL Dispatching 04.08 message, pdisc=11
-DMM MSISDN:46071 pdisc=11 msg_type=0x3b: received_cm_service_request changes to false
+DRLL Dispatching 04.08 message GSM48_PDISC_NC_SS:0x3b (0xb:0x3b)
+DMM MSISDN:46071: rx msg GSM48_PDISC_NC_SS:0x3b: received_cm_service_request changes to false
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_COMMUNICATING
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_COMMUNICATING
 DMM USSD: Own number requested
 DMM MSISDN:46071: MSISDN = 46071
 DMSC msc_tx 43 bytes to MSISDN:46071 via RAN_GERAN_A
-- DTAP --RAN_GERAN_A--> MS: 8b2a1c27a225020100302002013b301b04010f0416d9775d0e2ae3e965f73cfd7683d27310cd06bbc51a0d
+- DTAP --RAN_GERAN_A--> MS: GSM48_PDISC_NC_SS:0x2a: 8b2a1c27a225020100302002013b301b04010f0416d9775d0e2ae3e965f73cfd7683d27310cd06bbc51a0d
 - DTAP matches expected message
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_BUMP
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_COMMUNICATING}: bump: releasing conn
@@ -553,10 +553,10 @@
   llist_count(&vsub->cs.requests) == 1
 DREF VLR subscr MSISDN:46071 usage decreases to: 3
 - MS replies with Paging Response using TMSI, we deliver the SMS
-  rx from MS: pdisc=0x06 msg_type=0x27
+  MSC <--RAN_GERAN_A-- MS: GSM48_MT_RR_PAG_RESP
   new conn
 DREF unknown: MSC conn use + 1 == 1
-DRLL Dispatching 04.08 message, pdisc=6
+DRLL Dispatching 04.08 message GSM48_MT_RR_PAG_RESP (0x6:0x27)
 DRR PAGING RESPONSE: MI(TMSI)=50462976
 DREF unknown: MSC conn use + 1 == 2
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_INIT}: Allocated
@@ -586,7 +586,7 @@
 DREF VLR subscr MSISDN:46071 usage increases to: 6
 DREF MSISDN:46071: MSC conn use + 1 == 3
 DMSC msc_tx 91 bytes to MSISDN:46071 via RAN_GERAN_A
-- DTAP --RAN_GERAN_A--> MS: 09015801000791447758100650004c0005806470f1000007101000000000445079da1e1ee7416937485e9ea7c965373d1d6683c270383b3d0ed3d36ff71c949e83c22072799e9687c5ec32a81d96afcbf4b4fb0c7ac3e9e9b7db05
+- DTAP --RAN_GERAN_A--> MS: GSM48_PDISC_SMS:0x01: 09015801000791447758100650004c0005806470f1000007101000000000445079da1e1ee7416937485e9ea7c965373d1d6683c270383b3d0ed3d36ff71c949e83c22072799e9687c5ec32a81d96afcbf4b4fb0c7ac3e9e9b7db05
 - DTAP matches expected message
 DREF VLR subscr MSISDN:46071 usage decreases to: 5
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_BUMP
@@ -604,9 +604,9 @@
 - conn is still open to wait for SMS ack dance
   llist_count(&net->subscr_conns) == 1
 - MS replies with CP-ACK for received SMS
-  rx from MS: pdisc=0x89 msg_type=0x04
+  MSC <--RAN_GERAN_A-- MS: GSM48_PDISC_SMS:0x04
 DREF MSISDN:46071: MSC conn use + 1 == 3
-DRLL Dispatching 04.08 message, pdisc=9
+DRLL Dispatching 04.08 message GSM48_PDISC_SMS:0x04 (0x9:0x4)
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_COMMUNICATING
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_COMMUNICATING
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_BUMP
@@ -614,12 +614,12 @@
 DREF MSISDN:46071: MSC conn use - 1 == 2
   llist_count(&net->subscr_conns) == 1
 - MS also sends RP-ACK, MSC in turn sends CP-ACK for that
-  rx from MS: pdisc=0x89 msg_type=0x01
+  MSC <--RAN_GERAN_A-- MS: GSM48_PDISC_SMS:0x01
 DREF MSISDN:46071: MSC conn use + 1 == 3
-DRLL Dispatching 04.08 message, pdisc=9
+DRLL Dispatching 04.08 message GSM48_PDISC_SMS:0x01 (0x9:0x1)
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_COMMUNICATING
 DMSC msc_tx 2 bytes to MSISDN:46071 via RAN_GERAN_A
-- DTAP --RAN_GERAN_A--> MS: 0904
+- DTAP --RAN_GERAN_A--> MS: GSM48_PDISC_SMS:0x04: 0904
 - DTAP matches expected message
 DREF VLR subscr MSISDN:46071 usage decreases to: 3
 DREF VLR subscr MSISDN:46071 usage decreases to: 2
@@ -645,10 +645,10 @@
 ---
 - subscriber sends LU Request, this time with the TMSI
 - Location Update request causes a GSUP LU request to HLR
-  rx from MS: pdisc=0x05 msg_type=0x08
+  MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_LOC_UPD_REQUEST
   new conn
 DREF unknown: MSC conn use + 1 == 1
-DRLL Dispatching 04.08 message, pdisc=5
+DRLL Dispatching 04.08 message GSM48_MT_MM_LOC_UPD_REQUEST (0x5:0x8)
 DREF unknown: MSC conn use + 1 == 2
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_INIT}: Allocated
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_INIT}: Received Event SUBSCR_CONN_E_START
@@ -689,14 +689,14 @@
 - having received subscriber data does not mean acceptance
 msc_subscr_conn_is_accepted() == false
   requests shall be thwarted
-DRLL Dispatching 04.08 message, pdisc=3
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x03 msg_type=0x05
-DRLL Dispatching 04.08 message, pdisc=5
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x05 msg_type=0x33
-DRLL Dispatching 04.08 message, pdisc=6
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x06 msg_type=0x19
-DRLL Dispatching 04.08 message, pdisc=9
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x09 msg_type=0x01
+DRLL Dispatching 04.08 message GSM48_MT_CC_SETUP (0x3:0x5)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_MT_CC_SETUP
+DRLL Dispatching 04.08 message unknown 0x33 (0x5:0x33)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: unknown 0x33
+DRLL Dispatching 04.08 message GSM48_MT_RR_SYSINFO_1 (0x6:0x19)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_MT_RR_SYSINFO_1
+DRLL Dispatching 04.08 message GSM48_PDISC_SMS:0x01 (0x9:0x1)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_PDISC_SMS:0x01
   lu_result_sent == 0
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
@@ -734,14 +734,14 @@
   lu_result_sent == 1
 msc_subscr_conn_is_accepted() == false
   requests shall be thwarted
-DRLL Dispatching 04.08 message, pdisc=3
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x03 msg_type=0x05
-DRLL Dispatching 04.08 message, pdisc=5
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x05 msg_type=0x33
-DRLL Dispatching 04.08 message, pdisc=6
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x06 msg_type=0x19
-DRLL Dispatching 04.08 message, pdisc=9
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x09 msg_type=0x01
+DRLL Dispatching 04.08 message GSM48_MT_CC_SETUP (0x3:0x5)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_MT_CC_SETUP
+DRLL Dispatching 04.08 message unknown 0x33 (0x5:0x33)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: unknown 0x33
+DRLL Dispatching 04.08 message GSM48_MT_RR_SYSINFO_1 (0x6:0x19)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_MT_RR_SYSINFO_1
+DRLL Dispatching 04.08 message GSM48_PDISC_SMS:0x01 (0x9:0x1)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_PDISC_SMS:0x01
 - even though the TMSI is not acked, we can already find the subscr with it
 DREF VLR subscr MSISDN:46071 usage increases to: 3
   vsub != NULL == 1
@@ -750,9 +750,9 @@
   vsub->tmsi == 0x03020100
 DREF VLR subscr MSISDN:46071 usage decreases to: 2
 - MS sends TMSI Realloc Complete
-  rx from MS: pdisc=0x05 msg_type=0x5b
+  MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_TMSI_REALL_COMPL
 DREF MSISDN:46071: MSC conn use + 1 == 2
-DRLL Dispatching 04.08 message, pdisc=5
+DRLL Dispatching 04.08 message GSM48_MT_MM_TMSI_REALL_COMPL (0x5:0x1b)
 DMM TMSI Reallocation Completed. Subscriber: MSISDN:46071
 DVLR vlr_lu_fsm(50462976){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_NEW_TMSI_ACK
 DVLR lu_compl_vlr_fsm(50462976){LU_COMPL_VLR_S_WAIT_TMSI_CNF}: Received Event LU_COMPL_VLR_E_NEW_TMSI_ACK
@@ -793,10 +793,10 @@
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 ---
 - subscriber detaches, using new TMSI
-  rx from MS: pdisc=0x05 msg_type=0x01
+  MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_IMSI_DETACH_IND
   new conn
 DREF unknown: MSC conn use + 1 == 1
-DRLL Dispatching 04.08 message, pdisc=5
+DRLL Dispatching 04.08 message GSM48_MT_MM_IMSI_DETACH_IND (0x5:0x1)
 DMM IMSI DETACH INDICATION: MI(TMSI)=117835012
 DREF VLR subscr MSISDN:46071 usage increases to: 2
 DMM IMSI DETACH for MSISDN:46071
@@ -814,10 +814,10 @@
 
 ===== test_no_authen_imei
 - Location Update request causes a GSUP LU request to HLR
-  rx from MS: pdisc=0x05 msg_type=0x08
+  MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_LOC_UPD_REQUEST
   new conn
 DREF unknown: MSC conn use + 1 == 1
-DRLL Dispatching 04.08 message, pdisc=5
+DRLL Dispatching 04.08 message GSM48_MT_MM_LOC_UPD_REQUEST (0x5:0x8)
 DREF unknown: MSC conn use + 1 == 2
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_INIT}: Allocated
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_INIT}: Received Event SUBSCR_CONN_E_START
@@ -860,14 +860,14 @@
 - having received subscriber data does not mean acceptance
 msc_subscr_conn_is_accepted() == false
   requests shall be thwarted
-DRLL Dispatching 04.08 message, pdisc=3
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x03 msg_type=0x05
-DRLL Dispatching 04.08 message, pdisc=5
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x05 msg_type=0x33
-DRLL Dispatching 04.08 message, pdisc=6
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x06 msg_type=0x19
-DRLL Dispatching 04.08 message, pdisc=9
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x09 msg_type=0x01
+DRLL Dispatching 04.08 message GSM48_MT_CC_SETUP (0x3:0x5)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_MT_CC_SETUP
+DRLL Dispatching 04.08 message unknown 0x33 (0x5:0x33)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: unknown 0x33
+DRLL Dispatching 04.08 message GSM48_MT_RR_SYSINFO_1 (0x6:0x19)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_MT_RR_SYSINFO_1
+DRLL Dispatching 04.08 message GSM48_PDISC_SMS:0x01 (0x9:0x1)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_PDISC_SMS:0x01
   lu_result_sent == 0
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT, and we send an ID Request for the IMEI to the MS
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
@@ -897,7 +897,7 @@
 DVLR lu_compl_vlr_fsm(901700000004620){LU_COMPL_VLR_S_WAIT_SUB_PRES}: Received Event LU_COMPL_VLR_E_SUB_PRES_COMPL
 DVLR lu_compl_vlr_fsm(901700000004620){LU_COMPL_VLR_S_WAIT_SUB_PRES}: state_chg to LU_COMPL_VLR_S_WAIT_IMEI
 DMSC msc_tx 3 bytes to MSISDN:46071 via RAN_GERAN_A
-- DTAP --RAN_GERAN_A--> MS: 051802
+- DTAP --RAN_GERAN_A--> MS: GSM48_MT_MM_ID_REQ: 051802
 - DTAP matches expected message
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
@@ -908,18 +908,18 @@
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 msc_subscr_conn_is_accepted() == false
   requests shall be thwarted
-DRLL Dispatching 04.08 message, pdisc=3
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x03 msg_type=0x05
-DRLL Dispatching 04.08 message, pdisc=5
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x05 msg_type=0x33
-DRLL Dispatching 04.08 message, pdisc=6
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x06 msg_type=0x19
-DRLL Dispatching 04.08 message, pdisc=9
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x09 msg_type=0x01
+DRLL Dispatching 04.08 message GSM48_MT_CC_SETUP (0x3:0x5)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_MT_CC_SETUP
+DRLL Dispatching 04.08 message unknown 0x33 (0x5:0x33)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: unknown 0x33
+DRLL Dispatching 04.08 message GSM48_MT_RR_SYSINFO_1 (0x6:0x19)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_MT_RR_SYSINFO_1
+DRLL Dispatching 04.08 message GSM48_PDISC_SMS:0x01 (0x9:0x1)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_PDISC_SMS:0x01
 - MS replies with an Identity Response
-  rx from MS: pdisc=0x05 msg_type=0x59
+  MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_ID_RESP
 DREF MSISDN:46071: MSC conn use + 1 == 2
-DRLL Dispatching 04.08 message, pdisc=5
+DRLL Dispatching 04.08 message GSM48_MT_MM_ID_RESP (0x5:0x19)
 DMM IDENTITY RESPONSE: MI(IMEI)=423423423423423
 DVLR set IMEI on subscriber; IMSI=901700000004620 IMEI=423423423423423
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_ID_IMEI
@@ -961,10 +961,10 @@
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 ---
 - subscriber detaches
-  rx from MS: pdisc=0x05 msg_type=0x01
+  MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_IMSI_DETACH_IND
   new conn
 DREF unknown: MSC conn use + 1 == 1
-DRLL Dispatching 04.08 message, pdisc=5
+DRLL Dispatching 04.08 message GSM48_MT_MM_IMSI_DETACH_IND (0x5:0x1)
 DMM IMSI DETACH INDICATION: MI(IMSI)=901700000004620
 DREF VLR subscr MSISDN:46071 usage increases to: 2
 DMM IMSI DETACH for MSISDN:46071
@@ -982,10 +982,10 @@
 
 ===== test_no_authen_tmsi_imei
 - Location Update request causes a GSUP LU request to HLR
-  rx from MS: pdisc=0x05 msg_type=0x08
+  MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_LOC_UPD_REQUEST
   new conn
 DREF unknown: MSC conn use + 1 == 1
-DRLL Dispatching 04.08 message, pdisc=5
+DRLL Dispatching 04.08 message GSM48_MT_MM_LOC_UPD_REQUEST (0x5:0x8)
 DREF unknown: MSC conn use + 1 == 2
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_INIT}: Allocated
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_INIT}: Received Event SUBSCR_CONN_E_START
@@ -1028,14 +1028,14 @@
 - having received subscriber data does not mean acceptance
 msc_subscr_conn_is_accepted() == false
   requests shall be thwarted
-DRLL Dispatching 04.08 message, pdisc=3
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x03 msg_type=0x05
-DRLL Dispatching 04.08 message, pdisc=5
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x05 msg_type=0x33
-DRLL Dispatching 04.08 message, pdisc=6
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x06 msg_type=0x19
-DRLL Dispatching 04.08 message, pdisc=9
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x09 msg_type=0x01
+DRLL Dispatching 04.08 message GSM48_MT_CC_SETUP (0x3:0x5)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_MT_CC_SETUP
+DRLL Dispatching 04.08 message unknown 0x33 (0x5:0x33)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: unknown 0x33
+DRLL Dispatching 04.08 message GSM48_MT_RR_SYSINFO_1 (0x6:0x19)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_MT_RR_SYSINFO_1
+DRLL Dispatching 04.08 message GSM48_PDISC_SMS:0x01 (0x9:0x1)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_PDISC_SMS:0x01
   lu_result_sent == 0
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT, and we send an ID Request for the IMEI to the MS
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
@@ -1065,7 +1065,7 @@
 DVLR lu_compl_vlr_fsm(901700000004620){LU_COMPL_VLR_S_WAIT_SUB_PRES}: Received Event LU_COMPL_VLR_E_SUB_PRES_COMPL
 DVLR lu_compl_vlr_fsm(901700000004620){LU_COMPL_VLR_S_WAIT_SUB_PRES}: state_chg to LU_COMPL_VLR_S_WAIT_IMEI_TMSI
 DMSC msc_tx 3 bytes to MSISDN:46071 via RAN_GERAN_A
-- DTAP --RAN_GERAN_A--> MS: 051802
+- DTAP --RAN_GERAN_A--> MS: GSM48_MT_MM_ID_REQ: 051802
 - DTAP matches expected message
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
@@ -1076,18 +1076,18 @@
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 msc_subscr_conn_is_accepted() == false
   requests shall be thwarted
-DRLL Dispatching 04.08 message, pdisc=3
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x03 msg_type=0x05
-DRLL Dispatching 04.08 message, pdisc=5
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x05 msg_type=0x33
-DRLL Dispatching 04.08 message, pdisc=6
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x06 msg_type=0x19
-DRLL Dispatching 04.08 message, pdisc=9
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x09 msg_type=0x01
+DRLL Dispatching 04.08 message GSM48_MT_CC_SETUP (0x3:0x5)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_MT_CC_SETUP
+DRLL Dispatching 04.08 message unknown 0x33 (0x5:0x33)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: unknown 0x33
+DRLL Dispatching 04.08 message GSM48_MT_RR_SYSINFO_1 (0x6:0x19)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_MT_RR_SYSINFO_1
+DRLL Dispatching 04.08 message GSM48_PDISC_SMS:0x01 (0x9:0x1)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_PDISC_SMS:0x01
 - MS replies with an Identity Response
-  rx from MS: pdisc=0x05 msg_type=0x59
+  MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_ID_RESP
 DREF MSISDN:46071: MSC conn use + 1 == 2
-DRLL Dispatching 04.08 message, pdisc=5
+DRLL Dispatching 04.08 message GSM48_MT_MM_ID_RESP (0x5:0x19)
 DMM IDENTITY RESPONSE: MI(IMEI)=423423423423423
 DVLR set IMEI on subscriber; IMSI=901700000004620 IMEI=423423423423423
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_ID_IMEI
@@ -1102,18 +1102,18 @@
   lu_result_sent == 1
 msc_subscr_conn_is_accepted() == false
   requests shall be thwarted
-DRLL Dispatching 04.08 message, pdisc=3
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x03 msg_type=0x05
-DRLL Dispatching 04.08 message, pdisc=5
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x05 msg_type=0x33
-DRLL Dispatching 04.08 message, pdisc=6
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x06 msg_type=0x19
-DRLL Dispatching 04.08 message, pdisc=9
-DRLL subscr MSISDN:46071: Message not permitted for initial conn: pdisc=0x09 msg_type=0x01
+DRLL Dispatching 04.08 message GSM48_MT_CC_SETUP (0x3:0x5)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_MT_CC_SETUP
+DRLL Dispatching 04.08 message unknown 0x33 (0x5:0x33)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: unknown 0x33
+DRLL Dispatching 04.08 message GSM48_MT_RR_SYSINFO_1 (0x6:0x19)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_MT_RR_SYSINFO_1
+DRLL Dispatching 04.08 message GSM48_PDISC_SMS:0x01 (0x9:0x1)
+DRLL subscr MSISDN:46071: Message not permitted for initial conn: GSM48_PDISC_SMS:0x01
 - MS sends TMSI Realloc Complete
-  rx from MS: pdisc=0x05 msg_type=0x5b
+  MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_TMSI_REALL_COMPL
 DREF MSISDN:46071: MSC conn use + 1 == 2
-DRLL Dispatching 04.08 message, pdisc=5
+DRLL Dispatching 04.08 message GSM48_MT_MM_TMSI_REALL_COMPL (0x5:0x1b)
 DMM TMSI Reallocation Completed. Subscriber: MSISDN:46071
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_NEW_TMSI_ACK
 DVLR lu_compl_vlr_fsm(901700000004620){LU_COMPL_VLR_S_WAIT_TMSI_CNF}: Received Event LU_COMPL_VLR_E_NEW_TMSI_ACK
@@ -1154,10 +1154,10 @@
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 ---
 - subscriber detaches
-  rx from MS: pdisc=0x05 msg_type=0x01
+  MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_IMSI_DETACH_IND
   new conn
 DREF unknown: MSC conn use + 1 == 1
-DRLL Dispatching 04.08 message, pdisc=5
+DRLL Dispatching 04.08 message GSM48_MT_MM_IMSI_DETACH_IND (0x5:0x1)
 DMM IMSI DETACH INDICATION: MI(IMSI)=901700000004620
 DREF VLR subscr MSISDN:46071 usage increases to: 2
 DMM IMSI DETACH for MSISDN:46071