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CCNA Voice Portable Command Guide by Michael E. Scheuing, Robert M. Cannistra

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Chapter 1. Voice Fundamentals for Unified Communication

This chapter provides information on the following topics:

Voice Fundamentals

Cisco VoIP Structure

Common Topologies

• Traditional Voice Network

• Traditional Data Network

• Today’s Converged Network

Voice Fundamentals

Over the past decade, as IP-based protocols have matured, a trend has occurred. The trend has been moving away from traditional PBX-based telephony systems and moving toward implementing a converged data and voice IP-based network. This has enabled a lower-cost solution to be deployed over the existing infrastructure that exists for the network.

Whether you have a background in traditional voice, networking, or are new to this field altogether, there are a lot of terms ...

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