CHAPTER 21
Voice over Internet Protocol (VoIP)
The advancement and maturity of the Linux operating system and the growth of the open source community have enabled even more applications to be hosted on Linux servers. Voice over Internet Protocol, often referred to as Voice over IP or simply VoIP, has matured from being a technology implemented on specialized, high-cost hardware to being an application that can be hosted as a service on a Linux machine built from off-the-shelf components.
VoIP, like Linux, has evolved rapidly since its introduction in 1995 and continues to revolutionize communication, replacing traditional telephone networks all around the world. Every day, more and more people communicate over VoIP. International and continental ...
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