name: HLR
full_form: Home Location Register
context: Figure B.11 illustrates an incoming call from a fixed network subscriber "A" to a mobile CAMEL subscriber "B". The incoming call is first routed to the GMSC (1). The GMSC shall create an incoming gateway record for fixed network accounting purposes. The GMSC interrogates the HLR of the called subscriber in order to fetch the T-CSI (2). The HLR shall create an HLR interrogation record. The "B" subscriber has an active T-CSI. Therefore the GMSC requests instructions from the gsmSSF which passes the CAMEL service key to a gsmSCF to indicate which service logic it should apply (3). The gsmSCF may interrogate the HLR for subscriber information. As a network option, the operator may refuse to provide the requested information. When gsmSCF processing is complete the call control is returned to the GMSC. The GMSC shall generate a terminating CAMEL interrogation record which contains T-CSI data. The GMSC interrogates the HLR in order to determine his current location (4). The HLR shall create
description: The Home Location Register (HLR) is a database that stores information about mobile subscribers, including their profiles, services, and current locations. It plays a crucial role in managing subscriber data and providing it to other network functions for call setup, routing, and billing purposes.
explanation: The text describes the HLR as a database that manages subscriber information and provides it to other network functions, which is a characteristic of a Network Function.
section_title: B.4.11Incoming call handled by CAMEL without redirection
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biotag_Description: O,B-Network Function,I-Network Function,I-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O