From the reviews: Computer Communications "Although the concept of ISDN has been with us now for over a decade, and much development work has been carried out during this period, there are very few comprehensive books available on the subject. This is perhaps one of the best of them. The book aims to provide engineers and potential engineers with an ... Read moreoverview of the requirements and features of ISDN that will be useful in the design, construction and operation of such systems. The author and his six collaborators have succeeded in this respect, producing a readable, yet thorough, technical book that can be recommended to a wider audience... Throughout the book the explanations are enhanced by clear, well-presented, relevant diagrams, and there is a very useful annex on the full set of standards relating to ISDN. This is a good book that will definitely be used as a reference over the next few years by many engineers working in the area..." IEEE Computer "ISDN is a slim but very effective book dealing with almost every aspect of the evolution of public communications networks...I highly recommend this book to engineers who are new either to the field of ISDN or to specific ISDN topics. It is clear, concise, and is excellent padding for those tackling the CCITT recommendations." Show Less