<!doctype html public «-//w3c//dtd html 4.0 transitional//en»> http-equiv=content-type> The main goal of this book is to impart rigorous theoretical and practical knowledge concerning NGN, VoIP, SIP, and modern telecommunications networks, as well as to highlight potential future developments. A unique feature of this book is a practice-based section that elucidates and expands the theoretical material on SIP and VoIP.
