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VoIP Performance Management and Optimization by Habib Madani, Adeel Ahmed - CCIE No. 4574, Talal Siddiqui - CCIE No. 4280

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Chapter 3. VoIP Deployment Models in Service Provider Networks

This chapter gives you an understanding of how Voice over IP (VoIP) is deployed in service provider (SP) networks. This chapter focuses on describing a use case in which the VoIP infrastructure and the transport and the access are managed by an SP. Chapter 4, “Internet Telephony,” focuses on VoIP networks in which only the VoIP infrastructure is managed. Different network components and their functions are described to illustrate how various call functions are implemented to provide voice services to residential and business customers. Figure 3-1 depicts a block architecture of the SP scenarios discussed in this chapter. Here, the service provider also owns the last-mile network ...

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