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Bug #1933
closedvoice call drops after B subscriber accepts the call
Start date:
01/30/2017
Due date:
% Done:
0%
Spec Reference:
Description
During the test of nanoBTS (model 165G) and NITB configured with dynamic channels: 3 TCH/H and 3 PDCH, it was found that the initiated voice call drops immediately after B subscriber accepts the call.
- Selected default voice codec is: tch-h hr.
In the eth_tarce.pcap following is shown:
Frame # 41: MODE MODIFY REQuest (0x29)
Channel Mode IE:
Speech coding algorithm: GSM speech coding algorithm version 1: GSM FR or GSM HR (1)
# 42: MODE MODIFY Negative ACKnowledge (0x2b)
Cause IE:
Class: Protocol error (6)
...
# 45: GSM A-bis OML, Baseband Transceiver(00,00,ff) Failure Event Report
FOM Message Type: Failure Event Report
FOM Attribute ID: Event Type
FOM Attribute Length: 1
Event Type: Processor Failure (0x02)
# 48 Event Type: Processor Failure (0x02)
GSM A-bis OML, Baseband Transceiver(00,00,ff) Failure Event Report
the NITB log file shows :
... Mon Jan 30 16:13:42 2017 DRLL <0000> chan_alloc.c:352 (bts=0,trx=0,ts=2,pchan=TCH/H) Allocating lchan=0 as TCH_H Mon Jan 30 16:13:42 2017 DRSL <0004> abis_rsl.c:1819 (bts=0,trx=0,ts=2,ss=0) Activating ARFCN(870) SS(0) lctype TCH_H r=CALL ra=0x41 ta=0 Mon Jan 30 16:13:42 2017 DRSL <0004> abis_rsl.c:580 (bts=0,trx=0,ts=2,pchan=TCH/H) Tx RSL Channel Activate with act_type=INITIAL Mon Jan 30 16:13:42 2017 DRSL <0004> abis_rsl.c:1189 (bts=0,trx=0,ts=2,ss=0) state NONE -> ACTIVATION REQUESTED Mon Jan 30 16:13:42 2017 DRSL <0004> abis_rsl.c:1546 (bts=0,trx=0,ts=2,ss=0) CHANNEL ACTIVATE ACK Mon Jan 30 16:13:42 2017 DRSL <0004> abis_rsl.c:1189 (bts=0,trx=0,ts=2,ss=0) state ACTIVATION REQUESTED -> ACTIVE Mon Jan 30 16:13:42 2017 DRLL <0000> abis_rsl.c:2009 (bts=0,trx=0,ts=2,ss=0) SAPI=0 ESTABLISH INDICATION Mon Jan 30 16:13:42 2017 DRLL <0000> gsm_04_08.c:3723 Dispatching 04.08 message, pdisc=5 Mon Jan 30 16:13:42 2017 DRLL <0000> abis_rsl.c:2009 (bts=0,trx=0,ts=2,ss=0) SAPI=0 DATA INDICATION Mon Jan 30 16:13:43 2017 DRLL <0000> abis_rsl.c:2009 (bts=0,trx=0,ts=2,ss=0) SAPI=0 DATA INDICATION Mon Jan 30 16:13:43 2017 DRLL <0000> gsm_04_08.c:3723 Dispatching 04.08 message, pdisc=3 Mon Jan 30 16:13:43 2017 DMSC <000a> bsc_api.c:402 Sending ChanModify for speech: SPEECH_V1 on channel TCH_H Mon Jan 30 16:13:43 2017 DRLL <0000> abis_rsl.c:2009 (bts=0,trx=0,ts=2,ss=0) SAPI=0 DATA INDICATION Mon Jan 30 16:13:43 2017 DRSL <0004> abis_rsl.c:2226 (bts=0,trx=0,ts=2,ss=0) IPAC_BIND speech_mode=0x13 RTP_PAYLOAD=96 Mon Jan 30 16:13:43 2017 DRSL <0004> abis_rsl.c:1570 (bts=0,trx=0,ts=2,ss=0) CHANNEL MODE MODIFY NACK Mon Jan 30 16:13:43 2017 DRSL <0004> abis_rsl.c:2413 (bts=0,trx=0,ts=2,ss=0) IPAC_CRCX_NACK Failure Event Report Type=processing failure Severity=warning level failure Probable cause= 03 00 01 Additional Text=l3_0858_parser.c:852Unrecognised Cause value. Failure Event Report Type=processing failure Severity=failure ceased Probable cause= 03 00 01 Failure Event Report Type=processing failure Severity=warning level failure Probable cause= 03 00 01 Additional Text=l3_0858_parser.c:575## T M/O Pass Failure Reason Failure Event Report Type=processing failure Severity=failure ceased Probable cause= 03 00 01 Failure Event Report Type=processing failure Severity=warning level failure Probable cause= 03 00 01 Additional Text=l3_0858_parser.c:617 0 6 Man FALSE 0858_IE_VALUE_RFU Failure Event Report Type=processing failure Severity=failure ceased Probable cause= 03 00 01 Failure Event Report Type=processing failure Severity=warning level failure Probable cause= 03 00 01 Additional Text=l3_0858_parser.c:617 1 7 Opt Not parsed Failure Event Report Type=processing failure Severity=failure ceased Probable cause= 03 00 01 Failure Event Report Type=processing failure Severity=warning level failure Probable cause= 03 00 01 Additional Text=l3_0858_parser.c:617 2 53 Opt Not parsed Failure Event Report Type=processing failure Severity=failure ceased Probable cause= 03 00 01 Failure Event Report Type=processing failure Severity=warning level failure Probable cause= 03 00 01 Additional Text=l3_0858_parser.c:617 3 54 Opt Not parsed Failure Event Report Type=processing failure Severity=failure ceased Probable cause= 03 00 01 Failure Event Report Type=processing failure Severity=warning level failure Probable cause= 03 00 01 Additional Text=l3_main.c:399L3 msg parse failure. New msg (0x306) destroyed. Failure Event Report Type=processing failure Severity=failure ceased Probable cause= 03 00 01 Mon Jan 30 16:13:44 2017 DRLL <0000> chan_alloc.c:352 (bts=0,trx=0,ts=2,pchan=TCH/H) Allocating lchan=1 as TCH_H Mon Jan 30 16:13:44 2017 DRSL <0004> abis_rsl.c:1819 (bts=0,trx=0,ts=2,ss=1) Activating ARFCN(870) SS(1) lctype TCH_H r=PAGING ra=0x2a ta=0 Mon Jan 30 16:13:44 2017 DRSL <0004> abis_rsl.c:580 (bts=0,trx=0,ts=2,pchan=TCH/H) Tx RSL Channel Activate with act_type=INITIAL Mon Jan 30 16:13:44 2017 DRSL <0004> abis_rsl.c:1189 (bts=0,trx=0,ts=2,ss=1) state NONE -> ACTIVATION REQUESTED Mon Jan 30 16:13:44 2017 DRSL <0004> abis_rsl.c:1546 (bts=0,trx=0,ts=2,ss=1) CHANNEL ACTIVATE ACK Mon Jan 30 16:13:44 2017 DRSL <0004> abis_rsl.c:1189 (bts=0,trx=0,ts=2,ss=1) state ACTIVATION REQUESTED -> ACTIVE Mon Jan 30 16:13:45 2017 DRLL <0000> abis_rsl.c:2009 (bts=0,trx=0,ts=2,ss=1) SAPI=0 ESTABLISH INDICATION Mon Jan 30 16:13:45 2017 DRLL <0000> gsm_04_08.c:3723 Dispatching 04.08 message, pdisc=6 Mon Jan 30 16:13:45 2017 DRLL <0000> abis_rsl.c:2009 (bts=0,trx=0,ts=2,ss=1) SAPI=0 DATA INDICATION Mon Jan 30 16:13:45 2017 DRLL <0000> abis_rsl.c:2009 (bts=0,trx=0,ts=2,ss=1) SAPI=0 DATA INDICATION Mon Jan 30 16:13:45 2017 DRLL <0000> gsm_04_08.c:3723 Dispatching 04.08 message, pdisc=3 Mon Jan 30 16:13:45 2017 DMSC <000a> bsc_api.c:402 Sending ChanModify for speech: SPEECH_V1 on channel TCH_H Mon Jan 30 16:13:45 2017 DRLL <0000> abis_rsl.c:2009 (bts=0,trx=0,ts=2,ss=1) SAPI=0 DATA INDICATION Mon Jan 30 16:13:45 2017 DRSL <0004> abis_rsl.c:2226 (bts=0,trx=0,ts=2,ss=1) IPAC_BIND speech_mode=0x13 RTP_PAYLOAD=96 Mon Jan 30 16:13:45 2017 DRSL <0004> abis_rsl.c:1570 (bts=0,trx=0,ts=2,ss=1) CHANNEL MODE MODIFY NACK Mon Jan 30 16:13:45 2017 DRSL <0004> abis_rsl.c:2413 (bts=0,trx=0,ts=2,ss=1) IPAC_CRCX_NACK
Package: libosmocore
Version: 0.9.0-5
hashes:
libosmo-abis: 254745880bb2ff7f17fe158fb7bfb5e1dc530906
libosmo-netif: 8d3384290ba7c79b290b492dd1279041fb578a9c
libosmo-sccp: 0c72c1c0d313321f65fd272840ed8e8ae69a04cd
libosmocore: 48f55833476439fc45fa4eaa4327beccdc92d44b
libsmpp34: 63d562c099f11c4d11a952a03bc54659f8b82319
openbsc: 3f940fc9eea40873185a240e68992e70a3e8abb4
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