Newbie question: CM Service reject

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Don Fanning don at 00100100.net
Fri Feb 10 03:03:04 UTC 2012


Hello All,

After some trials and tribulations, I think I got my OpenBSC+LCR+Asterisk
compiles and working.  The MS connects once I spoof the proper MCC/MNC for
the foreign SIM I have (to ensure that no one else can connect within my
area).  Then when I try to make a test call to an asterisk extension, it
give me the following:

Thu Feb  9 18:55:58 2012 <0004> abis_rsl.c:1318 (bts=0,trx=0,ts=2,ss=0)
Activating ARFCN(514) SS(0) lctype TCH/F r=CALL ra=0x4f ta=1
Thu Feb  9 18:55:58 2012 <0004> abis_rsl.c:1064 (bts=0,trx=0,ts=2,ss=0)
CHANNEL ACTIVATE ACK
Thu Feb  9 18:55:58 2012 <0000> abis_rsl.c:1490 (bts=0,trx=0,ts=2,ss=0)
SAPI=0 ESTABLISH INDICATION
Thu Feb  9 18:55:58 2012 <0002> gsm_04_08.c:858 <- CM SERVICE REQUEST
serv_type=0x01 mi_type=0x04 M(210271915)
Thu Feb  9 18:55:58 2012 <0002> gsm_04_08.c:800 -> CM SERVICE Reject cause:
2
Thu Feb  9 18:55:58 2012 <0001> gsm_04_08.c:114 (bts 0 trx 0 ts 2 pd 05)
Sending 0x22 to MS.
Thu Feb  9 18:55:58 2012 <0000> abis_rsl.c:1490 (bts=0,trx=0,ts=2,ss=0)
SAPI=0 DATA INDICATION
Thu Feb  9 18:55:58 2012 <0003> bsc_api.c:430 CLASSMARK CHANGE CM2(len=3)
CM3(len=9)
Thu Feb  9 18:56:03 2012 <0000> chan_alloc.c:429 (bts=0,trx=0,ts=2,ss=0)
starting release sequence
Thu Feb  9 18:56:03 2012 <0003> gsm_04_08_utils.c:231 Sending Channel
Release: Chan: Number: 0 Type: 2
Thu Feb  9 18:56:03 2012 <0004> abis_rsl.c:579 (bts=0,trx=0,ts=2,ss=0)
DEACTivate SACCH CMD
Thu Feb  9 18:56:03 2012 <0000> abis_rsl.c:1490 (bts=0,trx=0,ts=2,ss=0)
SAPI=0 RELEASE INDICATION
Thu Feb  9 18:56:03 2012 <0004> abis_rsl.c:621 (bts=0,trx=0,ts=2,ss=0) RF
Channel Release CMD due error 0
Thu Feb  9 18:56:03 2012 <0004> abis_rsl.c:968 (bts=0,trx=0,ts=2,ss=0):
MEAS RES for inactive channel
Thu Feb  9 18:56:03 2012 <0004> abis_rsl.c:658 (bts=0,trx=0,ts=2,ss=0) RF
CHANNEL RELEASE ACK

Any assistance would be appreciated.

Regards,
-Don
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