Chapter 3. Paving the Pathway to a Voice over IP Network

What You Will Learn

After reading this chapter, you should be able to

Describe how VoIP can compete with the reliability of traditional PBX systems.

Explain how to replace PBX-to-PBX connections with a VoIP network.

Identify router interfaces used for connecting various analog devices (for example, phones and fax machines).

Describe how voice-enabled routers connect to digital circuits (for example, T1 and E1 circuits).

Explain how dial peers allow voice-enabled routers to forward calls to the appropriate destination.

Discuss how VoIP can be used in the home, as opposed to traditional telephone service.

The transition from a traditional private branch exchange (PBX)-based telephony system ...

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