Chapter 1. Overview of IP Telephony

This chapter covers the following topics:

The technology of communications has always been a great area of innovation. Since the invention of the telephone in the 1890s to the latest advancements in Telepresence technologies today, communications have been an important area of development. Since late 1990, the major development in communications has been the shift from many different protocols to the use of Internet Protocol (IP) for communications. Overall, this is known as IP Telephony.

This chapter provides the introduction to IP Telephony and its essential components, including ...

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