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Developing Cisco IP Phone Services: A Cisco AVVID Solution by Anne Smith, Mark Nelson, Darrick Deel

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Chapter 2. The Basics

The goal of this book is to teach you how to develop applications (also known as services) for Cisco's series of Internet Protocol (IP) phones. This chapter covers the following basic topics:

  • An overview of the network architecture the Cisco CallManager uses

  • How Cisco IP Phones operate as part of that network architecture

  • How a Web server sends XML objects to the Cisco IP Phone

  • The basics of developing Web-based services for the IP Phone

  • The XML message format used by Cisco IP Phones

  • Resources for further study

Master these sections and you can write Cisco IP Phone services.

CallManager Architecture

A typical installation of CallManager in a corporate network can be a complicated piece of work. Such a system can have hundreds or thousands ...

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