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    Part III: Advanced Topics > Interworking with PSTN/PLMN

    Chapter 18. Interworking with PSTN/PLMN

    In this chapter, we will tackle the integration of IP multimedia networks with the existing fixed (PSTN[1]) and mobile (PLMN[2]) circuit-switched networks in order to enable different types of communication scenarios. We begin the chapter by explaining what the motivation for the integration is. Then we present the high-level architecture that enables the identified scenarios. After that, we will look into specific aspects of the integration, such as addressing, protocol translation, and protocol encapsulation.

    [1] PSTN stands for Public Switched Telephone Network.

    [2] PLMN stands for Public Land Mobile Network.


      

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