"Bad signalling message, sign_link returned error: Operation not permitted" - during voice call

Mario Lucas mariolucas75 at mail.ru
Sun Nov 29 21:20:19 UTC 2020


Dear team,
 
I did set up GSM network with SDR (LimeSDRmini).
SMS are ok.
 
However when try to make voice call got following message on osmo-bsc terminal:
 
<0003> abis_rsl.c:1372 (bts=0) CHAN RQD: reason: call re-establishment (ra=0x41, neci=0x01, chreq_reason=0x02)
<0007> osmo_bsc_sigtran.c:305 Initializing resources for new SIGTRAN connection to MSC: RI=SSN_PC,PC=0.23.1,SSN=BSSAP...
<0007> osmo_bsc_sigtran.c:351 Opening new SIGTRAN connection (id=31) to MSC: RI=SSN_PC,PC=0.23.1,SSN=BSSAP
<0003> abis_rsl.c:1372 (bts=0) CHAN RQD: reason: answer to paging (ra=0x9b, neci=0x01, chreq_reason=0x01)
<0007> osmo_bsc_sigtran.c:305 Initializing resources for new SIGTRAN connection to MSC: RI=SSN_PC,PC=0.23.1,SSN=BSSAP...
<0007> osmo_bsc_sigtran.c:351 Opening new SIGTRAN connection (id=32) to MSC: RI=SSN_PC,PC=0.23.1,SSN=BSSAP
<0004> abis_nm.c:344 BTS 0 reported connected PCU version 0.8.0
<0016> input/ipaccess.c:411 Bad signalling message, sign_link returned error: Operation not permitted.
<0016> input/ipaccess.c:411 Bad signalling message, sign_link returned error: Operation not permitted.
 
 
WHat is this bad signalling message operation not permitted?
 
 
--
Mario Lucas
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