Average Reviews:
(More customer reviews)This book intends to be the de facto handbook for IMS, but it ends up being mostly reference material.
While it has some fairly detailed descriptions of the standards and protocols involved, it does not go beyond the specifications already publicly available, or the methods that some vendors already use. Some chapters read like a translation of technical drafts, while others concerning less defined areas are very high level.
The authors, while doing a good job assembling useful information, probably set out to write this book too early, when IMS was still only a reference framework, without widespread service provider adoption. Furthermore, the corresponding expertise across the industry is missing, thus making this a less elaborate view on the services that IMS would provide, compared to what the book's subtitle would suggest.
If you need a book on IMS right now, and are not happy with the abundance of online materials, buy this book. If you are looking for a comprehensive guide on what IMS means for providers and customers, I personally have not read such a book yet - but even if it has not been released, it is only a matter of time. Keep your eyes peeled for snippets of information coming out of service providers and infrastructure vendors, and for the ongoing debates in the industry around the evolution of the service delivery platform.
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