Don't know the exact repro for this, but usually involves either putting the phone into airplane mode, or restarting OpenBTS and then trying to get a connection. There is an existing entry in the gprs list ms for the MS and when it tries to reconnect, you get this message:
Jul 16 18:41:22 endaga-demo2 openbts: ERR 13635:13842 2015-07-16T18:41:22.7 TBF.cpp:500:sendAssignmentCcch: Attempt to send TBF assignment on CCCH to MS without an IMSI?
Don't know the exact repro for this, but usually involves either putting the phone into airplane mode, or restarting OpenBTS and then trying to get a connection. There is an existing entry in the
gprs list msfor the MS and when it tries to reconnect, you get this message:Jul 16 18:41:22 endaga-demo2 openbts: ERR 13635:13842 2015-07-16T18:41:22.7 TBF.cpp:500:sendAssignmentCcch: Attempt to send TBF assignment on CCCH to MS without an IMSI?