Chapter 3

General Principles of the IMS Architecture

Gonzalo Camarillo M.Sc, 

Gonzalo Camarillo M.Sc

Advanced Signalling Research Laboratory, Ericsson, Helsinki, Finland

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Miguel A. García-Martín, 

Miguel A. García-Martín

Senior Expert

IP Multimedia technologies, Ericsson, Helsinki, Finland

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First published: 29 June 2004
https://doi.org/10.1002/047087158X.ch3

Summary

This chapter contains sections titled:

  • From Circuit-switched to Packet-switched

  • IMS Requirements

  • Overview of Protocols Used in the IMS

  • Overview of IMS Architecture

  • Identification in the IMS

  • SIM, USIM, and ISIMin 3GPP

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