This book takes you from ground zero to explain how the many protocols and technologies work. There are plenty of diagrams with extensive explanations on each variant with their advantages and disadvantages.
Much of the information in this book is how the basic telephone system is structures and can apply to many areas besides DSL.
There is way too much detail to scratch the surface with this review so I will just cover some of the highlights.
He covers the emergence of the internet and web sites with information about ISP’s. From there the Public Switched Telephone Network (PSTN) is covered well enough to actually use. Loops and Trunks are covered. This is the mystery boxes in the phone room at work. The differences between analog and digital trunks are described. ISDN and DAML are covered along with the “Law of Large Numbers”. Alright now he moves in to the world of Circuit use and Packet Switching. MODEMs yep all kinds 56K, Cable, MMDS, KMDS, and Satellite Systems. DSL’s and T1’s and so on and so on.
This book is packed with diagrams and statistics. Want to delve deeper then
Appendix A Case studies
Appendix B Sources of Standards and Specification Information
Don’t ask me how all this can be packed in one book but it is and I use most of this technologies at work and could not find any slipups.