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5.0 out of 5 stars
5.0 out of 5 stars

on 7 August 2004
Readers of the book "The 3G IP Multimedia Subsystem" by Gonzalo Camarillo and Miguel A. Garcia Martin will be pleasantly surprised to find not only a well documented description of the state of the art 3rd generation (3G) mobile networks but also a very up to date tutorial of SIP based IP multimedia communications used in these networks. The book is thus perfectly suited for all professionals in IP services and networks, as well as for professional in more traditional networks. The book is an excellent refresher on IP multimedia and newer services such as Presence services and security that are well documented, from that basic concept to more detailed call flows.
Internet oriented readers will also get acquainted with holdovers from the circuit switched world that are still in use in 3G networks, such as the notion of the Signaling Plane (Section II) in the IMS and the Media Plane in the IMS (section III) and several other 3G concepts that differ from the Internet practices.
The authors have thus done a through job of representing the convergence of two worlds: 3G mobile networks and the Internet.
Henry Sinnreich
Richardson, Texas,
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on 11 July 2007
Possibly the best technical book I've ever read.

I work with IMS technology and we use the book in our department to introduce IMS to newcomers. But I also work in European projects on IMS and the book is the main reference for most of the other teams involved.

You just need this book and the 3GPP specifications for anything you want to do with IMS.
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on 4 January 2015
If you wanna learn about IMS, this is the first book to get up to speed.
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