Section: 10.2.3 Allocation principles
Content: The default Individual CTSMSI contains the least significant portion of the IMSI. This is the default CTS-MS identity. Assigned CTSMSIs are allocated by the CTS-FP during enrolment, registration and other access procedures. Significant Part of the assigned CTSMSI shall be allocated in the range 00001-FFFFE. CTS-FP shall not allocate Significant Part equal to 00000 or to FFFFF and shall not allocate Assigned CTSMSI using Reserved Type value. Such assignments shall be ignored by the CTS-MS. Assigned CTSMSIs are allocated in ciphered mode. NOTE: The assigned individual CTSMSI should be updated whenever it is sent in clear text on the CTS radio interface during RR connection establishment. The value FFFFF from the set of Assigned Connectionless Group CTSMSI shall be considered in all CTS-MS as the value of the Connectionless Broadcast Identifier.