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gsm48_cc_tx_setup: fix speech bearer capabilities

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Send the bearer capability IE from 3GPP TS 24.008 § D.1.2 for speech
instead of the result from gsm48_cc_tx_setup_set_bearer_cap() for the
network to MS direction. This is needed, because:

 - We shall send spare bits for the radio channel requirement in the
   network to MS direction, see 3GPP TS 24.008 § D.1.1 and Table
   10.5.102).

 - We could in theory send a speech version list that MS are then
   supposed to ignore (end of Table 10.5.103), but this causes bugs in
   some MS so it is better to not send it (OS#6656).

Related: OS#6657, OS#6655, OS#6656
Related: osmo-ttcn3-hacks I8fd33cf2f7fb8a1c34851ecf54fccddd2efd0536
Depends: libosmocore I97101c977104eae82e4850d40f9abd15aa03e33e
Change-Id: I7046e9244fd9d4301ee2c4df1147a619f753739c
This commit is contained in:
Oliver Smith
2025-09-03 14:54:50 +02:00
parent d0999628fd
commit ebbee0e250
4 changed files with 42 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
TODO-RELEASE
View File

@@ -7,3 +7,4 @@
# If any interfaces have been added since the last public release: c:r:a + 1.
# If any interfaces have been removed or changed since the last public release: c:r:0.
#library what description / commit summary line
libosmocore > 1.11.0 uses new GSM48_BCAP_RRQ_SPARE_NETWORK_TO_MS (I97101c977104eae82e4850d40f9abd15aa03e33e)

24
src/libmsc/gsm_04_08_cc.c
View File

@@ -911,8 +911,7 @@ static int gsm48_cc_tx_setup_select_codecs(struct gsm_trans *trans, const struct
/* Compose Bearer Capability information that reflects only the codecs (Speech
* Versions) / CSD bearer services remaining after intersecting MS, BSS and
* remote call leg restrictions. To store in trans for later use, and to
* include in the outgoing CC Setup message. */
* remote call leg restrictions. To store in trans for later use. */
static int gsm48_cc_tx_setup_set_bearer_cap(struct gsm_trans *trans, const struct gsm_mncc *setup)
{
int rc;
@@ -978,11 +977,30 @@ static int gsm48_cc_tx_setup_set_bearer_cap(struct gsm_trans *trans, const struc
return 0;
}
static struct msgb *gsm48_cc_tx_setup_encode_msg(const struct gsm_mncc_bearer_cap *bearer_cap,
static struct msgb *gsm48_cc_tx_setup_encode_msg(const struct gsm_mncc_bearer_cap *bearer_cap_orig,
const struct gsm_mncc *setup)
{
struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC SETUP");
struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
const struct gsm_mncc_bearer_cap *bearer_cap = bearer_cap_orig;
/* Send the bearer capability IE from 3GPP TS 24.008 § D.1.2 for speech
* instead of the result from gsm48_cc_tx_setup_set_bearer_cap() for
* the network to MS direction. This is needed, because:
* - We shall send spare bits for the radio channel requirement in the
* network to MS direction (3GPP TS 24.008 § D.1.1 and Table
* 10.5.102).
* - We could in theory send a speech version list that MS are then
* supposed to ignore (end of Table 10.5.103), but this causes bugs
* in some MS so it is better to not send it (OS#6656). */
static const struct gsm_mncc_bearer_cap bcap_speech = {
.transfer = GSM48_BCAP_ITCAP_SPEECH,
.radio = GSM48_BCAP_RRQ_SPARE_NETWORK_TO_MS,
.speech_ver = { -1 },
};
if (bearer_cap->transfer == GSM48_BCAP_ITCAP_SPEECH)
bearer_cap = &bcap_speech;
gh->msg_type = GSM48_MT_CC_SETUP;

12
tests/msc_vlr/msc_vlr_test_call.c
View File

@@ -386,7 +386,7 @@ static void test_call_mt()
VERBOSE_ASSERT(security_mode_ctrl_sent, == true, "%d");
btw("MS sends SecurityModeControl acceptance, VLR accepts, sends CC Setup");
dtap_expect_tx("0305" /* CC: Setup */ "04 04 60 04 05 8b" /* Bearer Cap, speech ver of AMR-FR and AMR-HR */);
dtap_expect_tx("0305" /* CC: Setup */ "04 01 a0" /* Bearer Cap, TS 24.008 § D.1.2 (OS#6657) */);
ms_sends_security_mode_complete(1);
btw("MS confirms call, we create a RAN-side RTP and forward MNCC_CALL_CONF_IND");
@@ -524,7 +524,7 @@ static void test_call_mt2()
VERBOSE_ASSERT(security_mode_ctrl_sent, == true, "%d");
btw("MS sends SecurityModeControl acceptance, VLR accepts, sends CC Setup");
dtap_expect_tx("0305" /* CC: Setup */ "04 04 60 04 05 8b" /* Bearer Cap, speech ver of AMR-FR and AMR-HR */);
dtap_expect_tx("0305" /* CC: Setup */ "04 01 a0" /* Bearer Cap, TS 24.008 § D.1.2 (OS#6657) */);
ms_sends_security_mode_complete(1);
btw("MS confirms call, we create a RAN-side RTP and forward MNCC_CALL_CONF_IND");
@@ -1510,17 +1510,13 @@ static void test_codecs_mt(const struct codec_test *t)
return;
}
btw("VLR accepts, MSC sends CC Setup with Bearer Capability = %s",
bcap_name(t->mt_tx_cc_setup_bcap));
char *cc_setup_bcap = talloc_asprintf(msc_vlr_tests_ctx, "0305%s",
bcap_hexstr(t->mt_tx_cc_setup_bcap));
dtap_expect_tx(cc_setup_bcap);
btw("VLR accepts, MSC sends CC Setup with Bearer Capability = TS 24.008 § D.1.2");
dtap_expect_tx("0305" /* CC: Setup */ "04 01 a0" /* Bearer Cap, TS 24.008 § D.1.2 (OS#6657) */);
ms_sends_compl_l3("062707"
"03575886" /* classmark 2 */
"089910070000106005" /* IMSI */,
codec_list(t->mt_rx_compl_l3_codec_list_bss_supported));
OSMO_ASSERT(dtap_tx_confirmed);
talloc_free(cc_setup_bcap);
btw("MS confirms call, we create a RAN-side RTP and forward MNCC_CALL_CONF_IND");
expect_crcx(RTP_TO_CN);

32
tests/msc_vlr/msc_vlr_test_call.err
View File

@@ -800,7 +800,7 @@ DCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAG
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: 030504046004058b
- DTAP --UTRAN-Iu--> MS: GSM48_MT_CC_SETUP: 03050401a0
- 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
DVLR VLR subscr IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 - Paging: now used by 3 (attached,CC,active-conn)
@@ -1320,7 +1320,7 @@ DCC trans(CC:NULL IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100:UTRAN-Iu:PAG
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: 030504046004058b
- DTAP --UTRAN-Iu--> MS: GSM48_MT_CC_SETUP: 03050401a0
- 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
DVLR VLR subscr IMSI-901700000010650:MSISDN-42342:TMSI-0x03020100 - Paging: now used by 3 (attached,CC,active-conn)
@@ -2875,7 +2875,7 @@ DVLR VLR subscr IMSI-901700000010650:MSISDN-46071 + Paging: now used by 4 (attac
DVLR VLR subscr IMSI-901700000010650:MSISDN-46071 - mncc_tx_to_gsm_cc: now used by 3 (attached,CC,Paging)
paging_sent == 1
- MS replies with Paging Response, with Codec List (BSS Supported) = FR1 FR2 FR3 HR1 HR3
- VLR accepts, MSC sends CC Setup with Bearer Capability = AMR AMR AMR GSM-EFR GSM GSM-HR-08
- VLR accepts, MSC sends CC Setup with Bearer Capability = TS 24.008 § D.1.2
MSC <--GERAN-A-- MS: GSM48_MT_RR_PAG_RESP
new conn
DMSC msub_fsm{active}: Allocated
@@ -2923,7 +2923,7 @@ DCC trans(CC:NULL IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-
DCC trans(CC:NULL IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) new state NULL -> CALL_PRESENT
DBSSAP msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){MSC_A_ST_COMMUNICATING}: Sending DTAP: CC GSM48_MT_CC_SETUP
DMSC msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){MSC_A_ST_COMMUNICATING}: RAN encode: DTAP on GERAN-A
- DTAP --GERAN-A--> MS: GSM48_MT_CC_SETUP: 030504076004050b020081
- DTAP --GERAN-A--> MS: GSM48_MT_CC_SETUP: 03050401a0
- DTAP matches expected message
DMSC dummy_msc_i(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){0}: Received Event MSC_I_EV_FROM_A_FORWARD_ACCESS_SIGNALLING_REQUEST
DVLR VLR subscr IMSI-901700000010650:MSISDN-46071 - Paging: now used by 4 (attached,CC,proc_arq_vlr_fn_init,active-conn)
@@ -3490,7 +3490,7 @@ DVLR VLR subscr IMSI-901700000010650:MSISDN-46071 + Paging: now used by 4 (attac
DVLR VLR subscr IMSI-901700000010650:MSISDN-46071 - mncc_tx_to_gsm_cc: now used by 3 (attached,CC,Paging)
paging_sent == 1
- MS replies with Paging Response, with Codec List (BSS Supported) = FR1 FR2 FR3 HR1 HR3
- VLR accepts, MSC sends CC Setup with Bearer Capability = GSM
- VLR accepts, MSC sends CC Setup with Bearer Capability = TS 24.008 § D.1.2
MSC <--GERAN-A-- MS: GSM48_MT_RR_PAG_RESP
new conn
DMSC msub_fsm{active}: Allocated
@@ -3538,7 +3538,7 @@ DCC trans(CC:NULL IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-
DCC trans(CC:NULL IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) new state NULL -> CALL_PRESENT
DBSSAP msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){MSC_A_ST_COMMUNICATING}: Sending DTAP: CC GSM48_MT_CC_SETUP
DMSC msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){MSC_A_ST_COMMUNICATING}: RAN encode: DTAP on GERAN-A
- DTAP --GERAN-A--> MS: GSM48_MT_CC_SETUP: 030504022080
- DTAP --GERAN-A--> MS: GSM48_MT_CC_SETUP: 03050401a0
- DTAP matches expected message
DMSC dummy_msc_i(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){0}: Received Event MSC_I_EV_FROM_A_FORWARD_ACCESS_SIGNALLING_REQUEST
DVLR VLR subscr IMSI-901700000010650:MSISDN-46071 - Paging: now used by 4 (attached,CC,proc_arq_vlr_fn_init,active-conn)
@@ -4093,7 +4093,7 @@ DVLR VLR subscr IMSI-901700000010650:MSISDN-46071 + Paging: now used by 4 (attac
DVLR VLR subscr IMSI-901700000010650:MSISDN-46071 - mncc_tx_to_gsm_cc: now used by 3 (attached,CC,Paging)
paging_sent == 1
- MS replies with Paging Response, with Codec List (BSS Supported) = FR1 FR2 FR3 HR1 HR3
- VLR accepts, MSC sends CC Setup with Bearer Capability = GSM
- VLR accepts, MSC sends CC Setup with Bearer Capability = TS 24.008 § D.1.2
MSC <--GERAN-A-- MS: GSM48_MT_RR_PAG_RESP
new conn
DMSC msub_fsm{active}: Allocated
@@ -4141,7 +4141,7 @@ DCC trans(CC:NULL IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-
DCC trans(CC:NULL IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) new state NULL -> CALL_PRESENT
DBSSAP msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){MSC_A_ST_COMMUNICATING}: Sending DTAP: CC GSM48_MT_CC_SETUP
DMSC msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){MSC_A_ST_COMMUNICATING}: RAN encode: DTAP on GERAN-A
- DTAP --GERAN-A--> MS: GSM48_MT_CC_SETUP: 030504022080
- DTAP --GERAN-A--> MS: GSM48_MT_CC_SETUP: 03050401a0
- DTAP matches expected message
DMSC dummy_msc_i(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){0}: Received Event MSC_I_EV_FROM_A_FORWARD_ACCESS_SIGNALLING_REQUEST
DVLR VLR subscr IMSI-901700000010650:MSISDN-46071 - Paging: now used by 4 (attached,CC,proc_arq_vlr_fn_init,active-conn)
@@ -4723,7 +4723,7 @@ DVLR VLR subscr IMSI-901700000010650:MSISDN-46071 + Paging: now used by 4 (attac
DVLR VLR subscr IMSI-901700000010650:MSISDN-46071 - mncc_tx_to_gsm_cc: now used by 3 (attached,CC,Paging)
paging_sent == 1
- MS replies with Paging Response, with Codec List (BSS Supported) = FR1
- VLR accepts, MSC sends CC Setup with Bearer Capability = GSM
- VLR accepts, MSC sends CC Setup with Bearer Capability = TS 24.008 § D.1.2
MSC <--GERAN-A-- MS: GSM48_MT_RR_PAG_RESP
new conn
DMSC msub_fsm{active}: Allocated
@@ -4771,7 +4771,7 @@ DCC trans(CC:NULL IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-
DCC trans(CC:NULL IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) new state NULL -> CALL_PRESENT
DBSSAP msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){MSC_A_ST_COMMUNICATING}: Sending DTAP: CC GSM48_MT_CC_SETUP
DMSC msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){MSC_A_ST_COMMUNICATING}: RAN encode: DTAP on GERAN-A
- DTAP --GERAN-A--> MS: GSM48_MT_CC_SETUP: 030504022080
- DTAP --GERAN-A--> MS: GSM48_MT_CC_SETUP: 03050401a0
- DTAP matches expected message
DMSC dummy_msc_i(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){0}: Received Event MSC_I_EV_FROM_A_FORWARD_ACCESS_SIGNALLING_REQUEST
DVLR VLR subscr IMSI-901700000010650:MSISDN-46071 - Paging: now used by 4 (attached,CC,proc_arq_vlr_fn_init,active-conn)
@@ -5353,7 +5353,7 @@ DVLR VLR subscr IMSI-901700000010650:MSISDN-46071 + Paging: now used by 4 (attac
DVLR VLR subscr IMSI-901700000010650:MSISDN-46071 - mncc_tx_to_gsm_cc: now used by 3 (attached,CC,Paging)
paging_sent == 1
- MS replies with Paging Response, with Codec List (BSS Supported) = FR1 FR2 FR3 HR1 HR3
- VLR accepts, MSC sends CC Setup with Bearer Capability = AMR AMR AMR GSM-EFR GSM GSM-HR-08
- VLR accepts, MSC sends CC Setup with Bearer Capability = TS 24.008 § D.1.2
MSC <--GERAN-A-- MS: GSM48_MT_RR_PAG_RESP
new conn
DMSC msub_fsm{active}: Allocated
@@ -5401,7 +5401,7 @@ DCC trans(CC:NULL IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-
DCC trans(CC:NULL IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) new state NULL -> CALL_PRESENT
DBSSAP msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){MSC_A_ST_COMMUNICATING}: Sending DTAP: CC GSM48_MT_CC_SETUP
DMSC msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){MSC_A_ST_COMMUNICATING}: RAN encode: DTAP on GERAN-A
- DTAP --GERAN-A--> MS: GSM48_MT_CC_SETUP: 030504076004050b020081
- DTAP --GERAN-A--> MS: GSM48_MT_CC_SETUP: 03050401a0
- DTAP matches expected message
DMSC dummy_msc_i(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){0}: Received Event MSC_I_EV_FROM_A_FORWARD_ACCESS_SIGNALLING_REQUEST
DVLR VLR subscr IMSI-901700000010650:MSISDN-46071 - Paging: now used by 4 (attached,CC,proc_arq_vlr_fn_init,active-conn)
@@ -5980,7 +5980,7 @@ DVLR VLR subscr IMSI-901700000010650:MSISDN-46071 + Paging: now used by 4 (attac
DVLR VLR subscr IMSI-901700000010650:MSISDN-46071 - mncc_tx_to_gsm_cc: now used by 3 (attached,CC,Paging)
paging_sent == 1
- MS replies with Paging Response, with Codec List (BSS Supported) = FR1 FR2 FR3 HR1 HR3
- VLR accepts, MSC sends CC Setup with Bearer Capability = AMR AMR AMR GSM-EFR GSM GSM-HR-08
- VLR accepts, MSC sends CC Setup with Bearer Capability = TS 24.008 § D.1.2
MSC <--GERAN-A-- MS: GSM48_MT_RR_PAG_RESP
new conn
DMSC msub_fsm{active}: Allocated
@@ -6028,7 +6028,7 @@ DCC trans(CC:NULL IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-
DCC trans(CC:NULL IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) new state NULL -> CALL_PRESENT
DBSSAP msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){MSC_A_ST_COMMUNICATING}: Sending DTAP: CC GSM48_MT_CC_SETUP
DMSC msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){MSC_A_ST_COMMUNICATING}: RAN encode: DTAP on GERAN-A
- DTAP --GERAN-A--> MS: GSM48_MT_CC_SETUP: 030504076004050b020081
- DTAP --GERAN-A--> MS: GSM48_MT_CC_SETUP: 03050401a0
- DTAP matches expected message
DMSC dummy_msc_i(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){0}: Received Event MSC_I_EV_FROM_A_FORWARD_ACCESS_SIGNALLING_REQUEST
DVLR VLR subscr IMSI-901700000010650:MSISDN-46071 - Paging: now used by 4 (attached,CC,proc_arq_vlr_fn_init,active-conn)
@@ -6619,7 +6619,7 @@ DVLR VLR subscr IMSI-901700000010650:MSISDN-46071 + Paging: now used by 4 (attac
DVLR VLR subscr IMSI-901700000010650:MSISDN-46071 - mncc_tx_to_gsm_cc: now used by 3 (attached,CC,Paging)
paging_sent == 1
- MS replies with Paging Response, with Codec List (BSS Supported) = FR1 FR2 FR3 HR1 HR3
- VLR accepts, MSC sends CC Setup with Bearer Capability = AMR AMR AMR GSM-EFR GSM GSM-HR-08
- VLR accepts, MSC sends CC Setup with Bearer Capability = TS 24.008 § D.1.2
MSC <--GERAN-A-- MS: GSM48_MT_RR_PAG_RESP
new conn
DMSC msub_fsm{active}: Allocated
@@ -6667,7 +6667,7 @@ DCC trans(CC:NULL IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-
DCC trans(CC:NULL IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP callref-0x423 tid-0) new state NULL -> CALL_PRESENT
DBSSAP msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){MSC_A_ST_COMMUNICATING}: Sending DTAP: CC GSM48_MT_CC_SETUP
DMSC msc_a(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){MSC_A_ST_COMMUNICATING}: RAN encode: DTAP on GERAN-A
- DTAP --GERAN-A--> MS: GSM48_MT_CC_SETUP: 030504076004050b020081
- DTAP --GERAN-A--> MS: GSM48_MT_CC_SETUP: 03050401a0
- DTAP matches expected message
DMSC dummy_msc_i(IMSI-901700000010650:MSISDN-46071:GERAN-A:PAGING_RESP){0}: Received Event MSC_I_EV_FROM_A_FORWARD_ACCESS_SIGNALLING_REQUEST
DVLR VLR subscr IMSI-901700000010650:MSISDN-46071 - Paging: now used by 4 (attached,CC,proc_arq_vlr_fn_init,active-conn)