Who Ought to Read This Book

If you work with data networks (perhaps to send e-mail or transfer files), if you work with telephony networks (perhaps with a corporate PBX system), if you're a home user interested in how VoIP can reduce your monthly phone bill, or if the concept of VoIP simply intrigues you, this book is for you. The concepts in this book are presented in plain language, so you don't need in-depth background knowledge to comprehend the technologies presented.