diff --git a/tests/msc_vlr/msc_vlr_test_hlr_reject.err b/tests/msc_vlr/msc_vlr_test_hlr_reject.err
index ac191be..f151838 100644
--- a/tests/msc_vlr/msc_vlr_test_hlr_reject.err
+++ b/tests/msc_vlr/msc_vlr_test_hlr_reject.err
@@ -6,7 +6,7 @@
   MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_LOC_UPD_REQUEST
   new conn
 DMM Subscr_Conn{SUBSCR_CONN_S_NEW}: Allocated
-DREF unknown: MSC conn use + compl_l3 == 1 (0x1)
+DREF unknown: MSC conn use + compl_l3 == 1 (0x1: compl_l3)
 DRLL Dispatching 04.08 message GSM48_MT_MM_LOC_UPD_REQUEST (0x5:0x8)
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Updated ID
 DMM LOCATION UPDATING REQUEST: MI(IMSI)=901700000004620 type=IMSI ATTACH
@@ -30,7 +30,7 @@
 DVLR VLR_Authenticate(LU:901700000004620){VLR_SUB_AS_NEEDS_AUTH}: state_chg to VLR_SUB_AS_NEEDS_AUTH_WAIT_AI
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_E_COMPLETE_LAYER_3
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_AUTH_CIPH
-DREF IMSI:901700000004620: MSC conn use - compl_l3 == 0 (0x0)
+DREF IMSI:901700000004620: MSC conn use - compl_l3 == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Awaiting results for Auth+Ciph, overruling event SUBSCR_CONN_E_UNUSED
   lu_result_sent == 0
@@ -51,7 +51,7 @@
 DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_WAIT_AUTH}: state_chg to VLR_ULA_S_DONE
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_CN_CLOSE
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: state_chg to SUBSCR_CONN_S_RELEASING
-DREF IMSI:901700000004620: MSC conn use + release == 1 (0x100)
+DREF IMSI:901700000004620: MSC conn use + release == 1 (0x100: release)
 DREF VLR subscr IMSI:901700000004620 usage increases to: 3
 DREF VLR subscr IMSI:901700000004620 usage decreases to: 2
 - BSSAP Clear --RAN_GERAN_A--> MS
@@ -61,7 +61,7 @@
   lu_result_sent == 2
   bssap_clear_sent == 1
 - BSS sends BSSMAP Clear Complete
-DREF IMSI:901700000004620: MSC conn use - release == 0 (0x0)
+DREF IMSI:901700000004620: MSC conn use - release == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
@@ -86,7 +86,7 @@
   MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_LOC_UPD_REQUEST
   new conn
 DMM Subscr_Conn{SUBSCR_CONN_S_NEW}: Allocated
-DREF unknown: MSC conn use + compl_l3 == 1 (0x1)
+DREF unknown: MSC conn use + compl_l3 == 1 (0x1: compl_l3)
 DRLL Dispatching 04.08 message GSM48_MT_MM_LOC_UPD_REQUEST (0x5:0x8)
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Updated ID
 DMM LOCATION UPDATING REQUEST: MI(IMSI)=901700000004620 type=IMSI ATTACH
@@ -110,7 +110,7 @@
 DVLR VLR_Authenticate(LU:901700000004620){VLR_SUB_AS_NEEDS_AUTH}: state_chg to VLR_SUB_AS_NEEDS_AUTH_WAIT_AI
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_E_COMPLETE_LAYER_3
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_AUTH_CIPH
-DREF IMSI:901700000004620: MSC conn use - compl_l3 == 0 (0x0)
+DREF IMSI:901700000004620: MSC conn use - compl_l3 == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Awaiting results for Auth+Ciph, overruling event SUBSCR_CONN_E_UNUSED
   lu_result_sent == 0
@@ -131,7 +131,7 @@
 DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_WAIT_AUTH}: state_chg to VLR_ULA_S_DONE
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_CN_CLOSE
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: state_chg to SUBSCR_CONN_S_RELEASING
-DREF IMSI:901700000004620: MSC conn use + release == 1 (0x100)
+DREF IMSI:901700000004620: MSC conn use + release == 1 (0x100: release)
 DREF VLR subscr IMSI:901700000004620 usage increases to: 3
 DREF VLR subscr IMSI:901700000004620 usage decreases to: 2
 - BSSAP Clear --RAN_GERAN_A--> MS
@@ -141,7 +141,7 @@
   lu_result_sent == 2
   bssap_clear_sent == 1
 - BSS sends BSSMAP Clear Complete
-DREF IMSI:901700000004620: MSC conn use - release == 0 (0x0)
+DREF IMSI:901700000004620: MSC conn use - release == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
@@ -168,7 +168,7 @@
   MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_LOC_UPD_REQUEST
   new conn
 DMM Subscr_Conn{SUBSCR_CONN_S_NEW}: Allocated
-DREF unknown: MSC conn use + compl_l3 == 1 (0x1)
+DREF unknown: MSC conn use + compl_l3 == 1 (0x1: compl_l3)
 DRLL Dispatching 04.08 message GSM48_MT_MM_LOC_UPD_REQUEST (0x5:0x8)
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Updated ID
 DMM LOCATION UPDATING REQUEST: MI(IMSI)=901700000004620 type=IMSI ATTACH
@@ -192,7 +192,7 @@
 DVLR VLR_Authenticate(LU:901700000004620){VLR_SUB_AS_NEEDS_AUTH}: state_chg to VLR_SUB_AS_NEEDS_AUTH_WAIT_AI
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_E_COMPLETE_LAYER_3
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_AUTH_CIPH
-DREF IMSI:901700000004620: MSC conn use - compl_l3 == 0 (0x0)
+DREF IMSI:901700000004620: MSC conn use - compl_l3 == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Awaiting results for Auth+Ciph, overruling event SUBSCR_CONN_E_UNUSED
   lu_result_sent == 0
@@ -213,7 +213,7 @@
   lu_result_sent == 0
 - MS sends Authen Response, VLR accepts and sends GSUP LU Req to HLR
   MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_AUTH_RESP
-DREF IMSI:901700000004620: MSC conn use + dtap == 1 (0x2)
+DREF IMSI:901700000004620: MSC conn use + dtap == 1 (0x2: dtap)
 DRLL Dispatching 04.08 message GSM48_MT_MM_AUTH_RESP (0x5:0x14)
 DMM IMSI:901700000004620: MM GSM AUTHENTICATION RESPONSE (sres = 2d8b2c3e)
 DVLR VLR_Authenticate(LU:901700000004620){VLR_SUB_AS_WAIT_RESP}: Received Event VLR_AUTH_E_MS_AUTH_RESP
@@ -236,7 +236,7 @@
 DVLR GSUP tx: 04010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_UPDATE_LOCATION_REQUEST: 04010809710000004026f0
 DVLR upd_hlr_vlr_fsm(LU:901700000004620){UPD_HLR_VLR_S_INIT}: state_chg to UPD_HLR_VLR_S_WAIT_FOR_DATA
-DREF IMSI:901700000004620: MSC conn use - dtap == 0 (0x0)
+DREF IMSI:901700000004620: MSC conn use - dtap == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Awaiting results for Auth+Ciph, overruling event SUBSCR_CONN_E_UNUSED
   lu_result_sent == 0
@@ -290,7 +290,7 @@
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: state_chg to SUBSCR_CONN_S_ACCEPTED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_RELEASING
-DREF MSISDN:46071: MSC conn use + release == 1 (0x100)
+DREF MSISDN:46071: MSC conn use + release == 1 (0x100: release)
 DREF VLR subscr MSISDN:46071 usage increases to: 4
 DREF VLR subscr MSISDN:46071 usage decreases to: 3
 - BSSAP Clear --RAN_GERAN_A--> MS
@@ -300,7 +300,7 @@
 - LU was successful, and the conn has already been closed
   lu_result_sent == 1
 - BSS sends BSSMAP Clear Complete
-DREF MSISDN:46071: MSC conn use - release == 0 (0x0)
+DREF MSISDN:46071: MSC conn use - release == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
@@ -325,7 +325,7 @@
   MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_LOC_UPD_REQUEST
   new conn
 DMM Subscr_Conn{SUBSCR_CONN_S_NEW}: Allocated
-DREF unknown: MSC conn use + compl_l3 == 1 (0x1)
+DREF unknown: MSC conn use + compl_l3 == 1 (0x1: compl_l3)
 DRLL Dispatching 04.08 message GSM48_MT_MM_LOC_UPD_REQUEST (0x5:0x8)
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Updated ID
 DMM LOCATION UPDATING REQUEST: MI(IMSI)=901700000004620 type=IMSI ATTACH
@@ -347,7 +347,7 @@
 DVLR VLR_Authenticate(LU:901700000004620){VLR_SUB_AS_NEEDS_AUTH}: state_chg to VLR_SUB_AS_NEEDS_AUTH_WAIT_AI
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_E_COMPLETE_LAYER_3
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_AUTH_CIPH
-DREF MSISDN:46071: MSC conn use - compl_l3 == 0 (0x0)
+DREF MSISDN:46071: MSC conn use - compl_l3 == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Awaiting results for Auth+Ciph, overruling event SUBSCR_CONN_E_UNUSED
   lu_result_sent == 0
@@ -368,7 +368,7 @@
   lu_result_sent == 0
 - MS sends Authen Response, VLR accepts and sends GSUP LU Req to HLR
   MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_AUTH_RESP
-DREF MSISDN:46071: MSC conn use + dtap == 1 (0x2)
+DREF MSISDN:46071: MSC conn use + dtap == 1 (0x2: dtap)
 DRLL Dispatching 04.08 message GSM48_MT_MM_AUTH_RESP (0x5:0x14)
 DMM MSISDN:46071: MM GSM AUTHENTICATION RESPONSE (sres = 2d8b2c3e)
 DVLR VLR_Authenticate(LU:901700000004620){VLR_SUB_AS_WAIT_RESP}: Received Event VLR_AUTH_E_MS_AUTH_RESP
@@ -391,7 +391,7 @@
 DVLR GSUP tx: 04010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_UPDATE_LOCATION_REQUEST: 04010809710000004026f0
 DVLR upd_hlr_vlr_fsm(LU:901700000004620){UPD_HLR_VLR_S_INIT}: state_chg to UPD_HLR_VLR_S_WAIT_FOR_DATA
-DREF MSISDN:46071: MSC conn use - dtap == 0 (0x0)
+DREF MSISDN:46071: MSC conn use - dtap == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Awaiting results for Auth+Ciph, overruling event SUBSCR_CONN_E_UNUSED
   lu_result_sent == 0
@@ -444,7 +444,7 @@
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: state_chg to SUBSCR_CONN_S_ACCEPTED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_RELEASING
-DREF MSISDN:46071: MSC conn use + release == 1 (0x100)
+DREF MSISDN:46071: MSC conn use + release == 1 (0x100: release)
 DREF VLR subscr MSISDN:46071 usage increases to: 4
 DREF VLR subscr MSISDN:46071 usage decreases to: 3
 - BSSAP Clear --RAN_GERAN_A--> MS
@@ -454,7 +454,7 @@
 - LU was successful, and the conn has already been closed
   lu_result_sent == 1
 - BSS sends BSSMAP Clear Complete
-DREF MSISDN:46071: MSC conn use - release == 0 (0x0)
+DREF MSISDN:46071: MSC conn use - release == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
@@ -481,7 +481,7 @@
   MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_LOC_UPD_REQUEST
   new conn
 DMM Subscr_Conn{SUBSCR_CONN_S_NEW}: Allocated
-DREF unknown: MSC conn use + compl_l3 == 1 (0x1)
+DREF unknown: MSC conn use + compl_l3 == 1 (0x1: compl_l3)
 DRLL Dispatching 04.08 message GSM48_MT_MM_LOC_UPD_REQUEST (0x5:0x8)
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Updated ID
 DMM LOCATION UPDATING REQUEST: MI(IMSI)=901700000004620 type=IMSI ATTACH
@@ -505,7 +505,7 @@
 DVLR VLR_Authenticate(LU:901700000004620){VLR_SUB_AS_NEEDS_AUTH}: state_chg to VLR_SUB_AS_NEEDS_AUTH_WAIT_AI
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_E_COMPLETE_LAYER_3
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_AUTH_CIPH
-DREF IMSI:901700000004620: MSC conn use - compl_l3 == 0 (0x0)
+DREF IMSI:901700000004620: MSC conn use - compl_l3 == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Awaiting results for Auth+Ciph, overruling event SUBSCR_CONN_E_UNUSED
   lu_result_sent == 0
@@ -526,7 +526,7 @@
   lu_result_sent == 0
 - MS sends Authen Response, VLR accepts and sends GSUP LU Req to HLR
   MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_AUTH_RESP
-DREF IMSI:901700000004620: MSC conn use + dtap == 1 (0x2)
+DREF IMSI:901700000004620: MSC conn use + dtap == 1 (0x2: dtap)
 DRLL Dispatching 04.08 message GSM48_MT_MM_AUTH_RESP (0x5:0x14)
 DMM IMSI:901700000004620: MM GSM AUTHENTICATION RESPONSE (sres = 2d8b2c3e)
 DVLR VLR_Authenticate(LU:901700000004620){VLR_SUB_AS_WAIT_RESP}: Received Event VLR_AUTH_E_MS_AUTH_RESP
@@ -549,7 +549,7 @@
 DVLR GSUP tx: 04010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_UPDATE_LOCATION_REQUEST: 04010809710000004026f0
 DVLR upd_hlr_vlr_fsm(LU:901700000004620){UPD_HLR_VLR_S_INIT}: state_chg to UPD_HLR_VLR_S_WAIT_FOR_DATA
-DREF IMSI:901700000004620: MSC conn use - dtap == 0 (0x0)
+DREF IMSI:901700000004620: MSC conn use - dtap == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Awaiting results for Auth+Ciph, overruling event SUBSCR_CONN_E_UNUSED
   lu_result_sent == 0
@@ -603,7 +603,7 @@
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: state_chg to SUBSCR_CONN_S_ACCEPTED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_RELEASING
-DREF MSISDN:46071: MSC conn use + release == 1 (0x100)
+DREF MSISDN:46071: MSC conn use + release == 1 (0x100: release)
 DREF VLR subscr MSISDN:46071 usage increases to: 4
 DREF VLR subscr MSISDN:46071 usage decreases to: 3
 - BSSAP Clear --RAN_GERAN_A--> MS
@@ -613,7 +613,7 @@
 - LU was successful, and the conn has already been closed
   lu_result_sent == 1
 - BSS sends BSSMAP Clear Complete
-DREF MSISDN:46071: MSC conn use - release == 0 (0x0)
+DREF MSISDN:46071: MSC conn use - release == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
@@ -638,7 +638,7 @@
   MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_LOC_UPD_REQUEST
   new conn
 DMM Subscr_Conn{SUBSCR_CONN_S_NEW}: Allocated
-DREF unknown: MSC conn use + compl_l3 == 1 (0x1)
+DREF unknown: MSC conn use + compl_l3 == 1 (0x1: compl_l3)
 DRLL Dispatching 04.08 message GSM48_MT_MM_LOC_UPD_REQUEST (0x5:0x8)
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Updated ID
 DMM LOCATION UPDATING REQUEST: MI(IMSI)=901700000004620 type=IMSI ATTACH
@@ -660,7 +660,7 @@
 DVLR VLR_Authenticate(LU:901700000004620){VLR_SUB_AS_NEEDS_AUTH}: state_chg to VLR_SUB_AS_NEEDS_AUTH_WAIT_AI
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_E_COMPLETE_LAYER_3
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_AUTH_CIPH
-DREF MSISDN:46071: MSC conn use - compl_l3 == 0 (0x0)
+DREF MSISDN:46071: MSC conn use - compl_l3 == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Awaiting results for Auth+Ciph, overruling event SUBSCR_CONN_E_UNUSED
   lu_result_sent == 0
@@ -681,7 +681,7 @@
 DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_WAIT_AUTH}: state_chg to VLR_ULA_S_DONE
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_CN_CLOSE
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: state_chg to SUBSCR_CONN_S_RELEASING
-DREF MSISDN:46071: MSC conn use + release == 1 (0x100)
+DREF MSISDN:46071: MSC conn use + release == 1 (0x100: release)
 DREF VLR subscr MSISDN:46071 usage increases to: 4
 DREF VLR subscr MSISDN:46071 usage decreases to: 3
 - BSSAP Clear --RAN_GERAN_A--> MS
@@ -691,7 +691,7 @@
   lu_result_sent == 2
   bssap_clear_sent == 1
 - BSS sends BSSMAP Clear Complete
-DREF MSISDN:46071: MSC conn use - release == 0 (0x0)
+DREF MSISDN:46071: MSC conn use - release == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
@@ -718,7 +718,7 @@
   MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_LOC_UPD_REQUEST
   new conn
 DMM Subscr_Conn{SUBSCR_CONN_S_NEW}: Allocated
-DREF unknown: MSC conn use + compl_l3 == 1 (0x1)
+DREF unknown: MSC conn use + compl_l3 == 1 (0x1: compl_l3)
 DRLL Dispatching 04.08 message GSM48_MT_MM_LOC_UPD_REQUEST (0x5:0x8)
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Updated ID
 DMM LOCATION UPDATING REQUEST: MI(IMSI)=901700000004620 type=IMSI ATTACH
@@ -742,7 +742,7 @@
 DVLR VLR_Authenticate(LU:901700000004620){VLR_SUB_AS_NEEDS_AUTH}: state_chg to VLR_SUB_AS_NEEDS_AUTH_WAIT_AI
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_E_COMPLETE_LAYER_3
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_AUTH_CIPH
-DREF IMSI:901700000004620: MSC conn use - compl_l3 == 0 (0x0)
+DREF IMSI:901700000004620: MSC conn use - compl_l3 == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Awaiting results for Auth+Ciph, overruling event SUBSCR_CONN_E_UNUSED
   lu_result_sent == 0
@@ -763,7 +763,7 @@
   lu_result_sent == 0
 - MS sends Authen Response, VLR accepts and sends GSUP LU Req to HLR
   MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_AUTH_RESP
-DREF IMSI:901700000004620: MSC conn use + dtap == 1 (0x2)
+DREF IMSI:901700000004620: MSC conn use + dtap == 1 (0x2: dtap)
 DRLL Dispatching 04.08 message GSM48_MT_MM_AUTH_RESP (0x5:0x14)
 DMM IMSI:901700000004620: MM GSM AUTHENTICATION RESPONSE (sres = 2d8b2c3e)
 DVLR VLR_Authenticate(LU:901700000004620){VLR_SUB_AS_WAIT_RESP}: Received Event VLR_AUTH_E_MS_AUTH_RESP
@@ -786,7 +786,7 @@
 DVLR GSUP tx: 04010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_UPDATE_LOCATION_REQUEST: 04010809710000004026f0
 DVLR upd_hlr_vlr_fsm(LU:901700000004620){UPD_HLR_VLR_S_INIT}: state_chg to UPD_HLR_VLR_S_WAIT_FOR_DATA
-DREF IMSI:901700000004620: MSC conn use - dtap == 0 (0x0)
+DREF IMSI:901700000004620: MSC conn use - dtap == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Awaiting results for Auth+Ciph, overruling event SUBSCR_CONN_E_UNUSED
   lu_result_sent == 0
@@ -840,7 +840,7 @@
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: state_chg to SUBSCR_CONN_S_ACCEPTED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_RELEASING
-DREF MSISDN:46071: MSC conn use + release == 1 (0x100)
+DREF MSISDN:46071: MSC conn use + release == 1 (0x100: release)
 DREF VLR subscr MSISDN:46071 usage increases to: 4
 DREF VLR subscr MSISDN:46071 usage decreases to: 3
 - BSSAP Clear --RAN_GERAN_A--> MS
@@ -850,7 +850,7 @@
 - LU was successful, and the conn has already been closed
   lu_result_sent == 1
 - BSS sends BSSMAP Clear Complete
-DREF MSISDN:46071: MSC conn use - release == 0 (0x0)
+DREF MSISDN:46071: MSC conn use - release == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
@@ -876,7 +876,7 @@
   MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_LOC_UPD_REQUEST
   new conn
 DMM Subscr_Conn{SUBSCR_CONN_S_NEW}: Allocated
-DREF unknown: MSC conn use + compl_l3 == 1 (0x1)
+DREF unknown: MSC conn use + compl_l3 == 1 (0x1: compl_l3)
 DRLL Dispatching 04.08 message GSM48_MT_MM_LOC_UPD_REQUEST (0x5:0x8)
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Updated ID
 DMM LOCATION UPDATING REQUEST: MI(IMSI)=901700000004620 type=IMSI ATTACH
@@ -898,7 +898,7 @@
 DVLR VLR_Authenticate(LU:901700000004620){VLR_SUB_AS_NEEDS_AUTH}: state_chg to VLR_SUB_AS_NEEDS_AUTH_WAIT_AI
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_E_COMPLETE_LAYER_3
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_AUTH_CIPH
-DREF MSISDN:46071: MSC conn use - compl_l3 == 0 (0x0)
+DREF MSISDN:46071: MSC conn use - compl_l3 == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Awaiting results for Auth+Ciph, overruling event SUBSCR_CONN_E_UNUSED
   lu_result_sent == 0
@@ -919,7 +919,7 @@
 DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_WAIT_AUTH}: state_chg to VLR_ULA_S_DONE
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_CN_CLOSE
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: state_chg to SUBSCR_CONN_S_RELEASING
-DREF MSISDN:46071: MSC conn use + release == 1 (0x100)
+DREF MSISDN:46071: MSC conn use + release == 1 (0x100: release)
 DREF VLR subscr MSISDN:46071 usage increases to: 4
 DREF VLR subscr MSISDN:46071 usage decreases to: 3
 - BSSAP Clear --RAN_GERAN_A--> MS
@@ -929,7 +929,7 @@
   lu_result_sent == 2
   bssap_clear_sent == 1
 - BSS sends BSSMAP Clear Complete
-DREF MSISDN:46071: MSC conn use - release == 0 (0x0)
+DREF MSISDN:46071: MSC conn use - release == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
@@ -954,7 +954,7 @@
   MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_LOC_UPD_REQUEST
   new conn
 DMM Subscr_Conn{SUBSCR_CONN_S_NEW}: Allocated
-DREF unknown: MSC conn use + compl_l3 == 1 (0x1)
+DREF unknown: MSC conn use + compl_l3 == 1 (0x1: compl_l3)
 DRLL Dispatching 04.08 message GSM48_MT_MM_LOC_UPD_REQUEST (0x5:0x8)
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Updated ID
 DMM LOCATION UPDATING REQUEST: MI(IMSI)=901700000004620 type=IMSI ATTACH
@@ -978,7 +978,7 @@
 DVLR VLR_Authenticate(LU:901700000004620){VLR_SUB_AS_NEEDS_AUTH}: state_chg to VLR_SUB_AS_NEEDS_AUTH_WAIT_AI
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_E_COMPLETE_LAYER_3
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_AUTH_CIPH
-DREF IMSI:901700000004620: MSC conn use - compl_l3 == 0 (0x0)
+DREF IMSI:901700000004620: MSC conn use - compl_l3 == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Awaiting results for Auth+Ciph, overruling event SUBSCR_CONN_E_UNUSED
   lu_result_sent == 0
@@ -998,7 +998,7 @@
 DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_WAIT_AUTH}: state_chg to VLR_ULA_S_DONE
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_CN_CLOSE
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: state_chg to SUBSCR_CONN_S_RELEASING
-DREF IMSI:901700000004620: MSC conn use + release == 1 (0x100)
+DREF IMSI:901700000004620: MSC conn use + release == 1 (0x100: release)
 DREF VLR subscr IMSI:901700000004620 usage increases to: 3
 DREF VLR subscr IMSI:901700000004620 usage decreases to: 2
 - BSSAP Clear --RAN_GERAN_A--> MS
@@ -1008,7 +1008,7 @@
   lu_result_sent == 2
   bssap_clear_sent == 1
 - BSS sends BSSMAP Clear Complete
-DREF IMSI:901700000004620: MSC conn use - release == 0 (0x0)
+DREF IMSI:901700000004620: MSC conn use - release == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
@@ -1033,7 +1033,7 @@
   MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_LOC_UPD_REQUEST
   new conn
 DMM Subscr_Conn{SUBSCR_CONN_S_NEW}: Allocated
-DREF unknown: MSC conn use + compl_l3 == 1 (0x1)
+DREF unknown: MSC conn use + compl_l3 == 1 (0x1: compl_l3)
 DRLL Dispatching 04.08 message GSM48_MT_MM_LOC_UPD_REQUEST (0x5:0x8)
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Updated ID
 DMM LOCATION UPDATING REQUEST: MI(IMSI)=901700000004620 type=IMSI ATTACH
@@ -1060,7 +1060,7 @@
 DVLR upd_hlr_vlr_fsm(LU:901700000004620){UPD_HLR_VLR_S_INIT}: state_chg to UPD_HLR_VLR_S_WAIT_FOR_DATA
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_E_COMPLETE_LAYER_3
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_AUTH_CIPH
-DREF IMSI:901700000004620: MSC conn use - compl_l3 == 0 (0x0)
+DREF IMSI:901700000004620: MSC conn use - compl_l3 == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Awaiting results for Auth+Ciph, overruling event SUBSCR_CONN_E_UNUSED
   lu_result_sent == 0
@@ -1081,7 +1081,7 @@
 DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_WAIT_HLR_UPD}: state_chg to VLR_ULA_S_DONE
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_CN_CLOSE
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: state_chg to SUBSCR_CONN_S_RELEASING
-DREF IMSI:901700000004620: MSC conn use + release == 1 (0x100)
+DREF IMSI:901700000004620: MSC conn use + release == 1 (0x100: release)
 DREF VLR subscr IMSI:901700000004620 usage increases to: 3
 DREF VLR subscr IMSI:901700000004620 usage decreases to: 2
 - BSSAP Clear --RAN_GERAN_A--> MS
@@ -1090,7 +1090,7 @@
   lu_result_sent == 2
   bssap_clear_sent == 1
 - BSS sends BSSMAP Clear Complete
-DREF IMSI:901700000004620: MSC conn use - release == 0 (0x0)
+DREF IMSI:901700000004620: MSC conn use - release == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
@@ -1115,7 +1115,7 @@
   MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_LOC_UPD_REQUEST
   new conn
 DMM Subscr_Conn{SUBSCR_CONN_S_NEW}: Allocated
-DREF unknown: MSC conn use + compl_l3 == 1 (0x1)
+DREF unknown: MSC conn use + compl_l3 == 1 (0x1: compl_l3)
 DRLL Dispatching 04.08 message GSM48_MT_MM_LOC_UPD_REQUEST (0x5:0x8)
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Updated ID
 DMM LOCATION UPDATING REQUEST: MI(IMSI)=901700000004620 type=IMSI ATTACH
@@ -1142,7 +1142,7 @@
 DVLR upd_hlr_vlr_fsm(LU:901700000004620){UPD_HLR_VLR_S_INIT}: state_chg to UPD_HLR_VLR_S_WAIT_FOR_DATA
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_E_COMPLETE_LAYER_3
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_AUTH_CIPH
-DREF IMSI:901700000004620: MSC conn use - compl_l3 == 0 (0x0)
+DREF IMSI:901700000004620: MSC conn use - compl_l3 == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Awaiting results for Auth+Ciph, overruling event SUBSCR_CONN_E_UNUSED
   lu_result_sent == 0
@@ -1185,7 +1185,7 @@
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: state_chg to SUBSCR_CONN_S_ACCEPTED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_RELEASING
-DREF IMSI:901700000004620: MSC conn use + release == 1 (0x100)
+DREF IMSI:901700000004620: MSC conn use + release == 1 (0x100: release)
 DREF VLR subscr IMSI:901700000004620 usage increases to: 4
 DREF VLR subscr IMSI:901700000004620 usage decreases to: 3
 - BSSAP Clear --RAN_GERAN_A--> MS
@@ -1195,7 +1195,7 @@
 - LU was successful, and the conn has already been closed
   lu_result_sent == 1
 - BSS sends BSSMAP Clear Complete
-DREF IMSI:901700000004620: MSC conn use - release == 0 (0x0)
+DREF IMSI:901700000004620: MSC conn use - release == 0 (0x0: )
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: Received Event SUBSCR_CONN_E_UNUSED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)