Description:Working in the telecommunications industry, I have become all too familiar with texts that skimp on topics important to the reader and are skewed toward the authors' interests. Freeman does an excellent job of balancing his coverage and providing a book with meaningful depth. I was looking to the book simply for its ATM and SS7 chapters, but the other chapters were very good also and I ended up learning a lot of new things. This book is a must have for someone looking for a one-stop solution to telecommunications education. I can't wait to see if all of Freeman's books are this informative and well written.