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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