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ETSI TS 131 103
M00002499
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ETSI TS 131 103 Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Characteristics of the IP Multimedia Services Identity Module (ISIM) application (3GPP TS 31.103 version 14.4.0 Release 14)
standard by European Telecommunications Standards Institute, 01/01/2018
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ETSI TS 131 103 defines the ISIM application for access to IMS services.The present document specifies: specific command parameters; file structures; contents of EFs (Elementary Files); security functions; application protocol to be used on the interface between UICC (ISIM) and Terminal.This is to ensure interoperability between an ISIM and Terminal independently of the respective manufacturer, cardissuer or operator.
The present document does not define any aspects related to the administrative management phase of the ISIM. Anyinternal technical realisation of either the ISIM or the Terminal is only specified where these are reflected over theinterface. The present document does not specify any of the security algorithms that may be used.