Section: 4.3.5.2 Abort procedure in the mobile station
Content: At the receipt of the ABORT message the mobile station shall abort any MM connection establishment or call re-establishment procedure and release all MM connections (if any). If cause value #6 is received the mobile station shall delete any TMSI, LAI and ciphering key sequence number stored in the SIM/USIM, set the update status to ROAMING NOT ALLOWED (and store it in the SIM/USIM according to subclause 4.1.2.2) and consider the SIM/USIM invalid until switch off or the SIM/USIM is removed. If the message has been successfully integrity checked by the lower layers and the MS maintains a counter for "SIM/USIM considered invalid for non-GPRS services", then the MS shall set this counter to MS implementation-specific maximum value. As a consequence the mobile station enters state MM IDLE, substate NO IMSI after the release of the RR connection. The mobile station shall then wait for the network to release the RR connection - see subclause 4.5.3.1.