22.0313G Security3GPPFraud Information Gathering System (FIGS)Service descriptionStage 1TS
For the purposes of this specification the following definitions apply:
A subscriber: The calling mobile subscriber.
B subscriber: The mobile subscriber originally called by the A subscriber.
C subscriber: The subscriber to whom the B subscriber has requested that calls be forwarded. The C subscriber may be fixed or mobile.
call: both connection-oriented and connectionless services/events.
call information: information about a call.
call reference: a reference number for a call that shall remain constant throughout the duration of that call and that shall be unique to that call and the switch on which the call was made for a period of at least one week.
home network: The home PLMN including non-GSM elements such as the Fraud Detection System (FDS), customer service systems and billing.
monitored activities: subscriber activities that shall be reported to the HPLMN. These can be call related events (e.g. call-set-up, call termination) or the invocation of call related and call independent supplementary services (e.g. Call Hold, Call Waiting, Call Transfer, Call Forwarding, Unstructured Supplementary Service Data).
Abbreviations used in this specification are also listed in GSM 01.04.
For the purposes of this specification the following abbreviations apply:
FIGS Fraud Information Gathering System
FDS Fraud Detection System
IST Immediate Service Termination
MO Mobile Originated
MT Mobile Terminated
CGI Cell Global Identifier