[SIPForum-discussion] reg: Meaning of SIM, USIM, UICC and ISIM

[chandrasekhara.madduri at wipro.com]

Hi All,

 

I am looking to have clear understanding of the following terms and
relation among them and the differences amongst them in IMS perspective.

 

SIM 

UICC

ISIM

USIM

 

Your explanation with a real time example and comparison with GSM
networks can help me understand this in a better way.

 

Thanks & regards,

Chandra Madduri

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