chap04 - The Public Network Chapter 4 Objectives In this...

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Unformatted text preview: The Public Network Chapter 4 Objectives In this chapter, you will learn to: Explain, in general terms, the structure of the public telephone network Describe the types of carriers who currently participate in the public telephone network Recognize the elements of outside plant and describe their purposes Recognize the elements of inside plant and describe their purposes Describe the hierarchy of central offices that participate in the public telephone network Explain issues related to interconnection and billing between common carriers Describe the current telephone numbering plan and explain how it has evolved An Overview of the Public Network Public Switched Telephone Network (PSTN)- consists of all the facilities and connections maintained by all local and long distance providers. In telecommunications, line is used frequently to refer to one of two things: the physical connection between a subscriber and the telephone company’s facilities a single communications channel between a subscriber and the central office An Overview of the Public Network Termination- the place where a wire is connected to another part of the public telephone network (for example, a switch or a customer’s home). Point of presence (POP)- refers to a carrier’s facilities that allow it or its customers access to the public network. Common Carriers Common carriers- entities directly involved in supplying regulated telecommunications services to the public....
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This note was uploaded on 10/25/2009 for the course IT 300 taught by Professor Staff during the Spring '08 term at George Mason.

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chap04 - The Public Network Chapter 4 Objectives In this...

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