name: MSISDN
full_form: MS International PSTN/ISDN Number
context: The LHN ID IE is used to indicate the LHN ID of the RNC, as defined in TS 23.003 [19].
description: The MS International PSTN/ISDN Number (MSISDN) is a unique identifier used to identify a mobile subscriber's phone number within the Public Switched Telephone Network (PSTN) or Integrated Services Digital Network (ISDN). It plays a crucial role in various network operations, including the RAB Assignment procedure, where it may be used for offloading Radio Access Bearers (RABs) and implementing Single IP Traffic Offload at Iu-PS function.
explanation: The context provided highlights MSISDN's use as an identifier within specific network procedures and functions. Its presence in messages like the RAB ASSIGNMENT REQUEST and its role in identifying subscribers for offloading RABs or implementing SIPTO at Iu-PS, clearly categorize it under the Identifier entity type.
section_title: 8.2.2	Successful Operation
biotag_Context: O,B-Parameter,B-Parameter,B-Message,O,O,O,O,O,B-Parameter,B-Parameter,O,O,O,O,O,O,B-Specification,O,O
biotag_Description: O,B-Parameter,I-Parameter,I-Parameter,I-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network,I-Network,I-Network,I-Network,O,O,B-Technology,I-Technology,I-Technology,I-Technology,O,O,O,O,O,O,O,O,O,O,O,O,B-Connection,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Protocol,O,O,O,O,O