From the reviews:Computer Communications"Although the concept of ISDN has been with us now for overa decade, and much development work has been carried out du-ring this period, there are very few comprehensive booksavailable on the subject. This is perhaps one of the best ofthem.The book aims to provide engineers and potential engi-neers with an overview of the requirements and features ofISDN that will be useful in thedesign, construction andoperation of such systems. The author and his six collabora-tors have succeeded in this respect, producing a readable,yet thorough, technical book that can be recommended to awider audience...Throughout the book the explanations are enhanced byclear,well-presented, relevant diagrams, and there is a very use-ful annex on the full set of standards relating to ISDN.This is a good book that will definitely be used as a refe-rence over the next few years by many engineers working inthe area..."IEEE Computer"ISDN is a slimbut very effective book dealing with almostevery aspect of the evolution ofpublic communications net-works...I highly recommend this book to engineerswho arenew either to the field of ISDN or to specific ISDN topics.It is clear, concise, and is excellent padding for thosetackling the CCITT recommendations."