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A Cisco Telephony Architecture Evolution

Sample Chapter is provided courtesy of Cisco Press.
Date: Sep 3, 2004.

Chapter Information

Chapter Description

This chapter introduces the concept of ROI, and provides the background and reasoning behind Cisco's decision to migrate to an all-IP network.

From the Book

Road to IP Telephony, The: How Cisco Systems Migrated from PBX to IP Telephony

$44.99

Summary

This chapter provided the background on why Cisco decided to migrate to an all IP network, included a discussion on ROI, and described the architectural evolution from the beginning of the migration to IP Telephony. The chapters that follow will provide you with the knowledge and tools to plan, design, implement, operate, and optimize your IP network.

Figure 1-3 Cisco 2001 San Jose Campus Environment

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