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IP Multimedia Services Identity Module : ウィキペディア英語版 | IP Multimedia Services Identity Module An IP Multimedia Services Identity Module (ISIM) is an application running on a UICC smart card in a 3G mobile telephone in the IP Multimedia Subsystem (IMS). It contains parameters for identifying and authenticating the user to the IMS. The ISIM application can co-exist with SIM and USIM on the same UICC making it possible to use the same smartcard in both GSM networks and earlier releases of UMTS. Among the data present on ISIM are an IP Multimedia Private Identity (IMPI), the home operator domain name, one or more IP Multimedia Public Identity (IMPU) and a long-term secret used to authenticate and calculate cipher keys. The first IMPU stored in the ISIM is used in emergency registration requests. ==External links==
* (3GPP TS 31.103 ) - ISIM standard * (3GPP TS 24.229 )
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「IP Multimedia Services Identity Module」の詳細全文を読む
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