Part I. Internet Telephony Fundamentals
To start the book off, we thought it would be a good idea to walk you through the benefits and tradeoffs of using an Internet-based telephone system, sometimes referred to as Voice over IP (VoIP), or broadband phone service.
To understand the benefits at a deeper level, we begin this section with a short primer on the public telephone system that you have probably used your entire life. There’s nothing too technical here, just a quick look into the simple, yet well-designed communication system that has been in operation for nearly 100 years.
We follow Chapter 1, “Traditional Phone Systems,” with a similar type of primer for the new VoIP system that is the focus of this book. How does it work, why is it different, ...
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