By Mark Wuthnow
This ebook is a must-have for an individual short of good info on IMS. this is often the very best IMS reference fabrics with purely round three hundred pages. you cannot beat the worth this e-book bargains.
The authors do a huge activity in explaining IMS to readers. I loved the structure of this e-book for the "modular layout" it contained inside its classes. the 1st consultation of this ebook is devoted to high-level structure and the principles of IMS. you can still comprehend the values of IMS reminiscent of consultation keep an eye on, provider mixing, QoS, versatile charging and the evolution with key parts on top of things, bearer, and alertness planes. after you have a great clutch from consultation 1, consultation 2 extra breaks down numerous essences of IMS into elements. this is often very necessary in getting the historical past info corresponding to SIP, SDP, MSRP, XML, and Diameter for construction IMS serving particular types of reasons.
Session three are devoted to the `enablers' of IMS OMA. those chapters comprise info on those OMA enablers' layout reasons, good points, values supplied to subscribers and the way to enforce them. The e-book is written in a simple to persist with structure.
Session four is best consultation via interpreting a number of vignettes to get into the contexts of IMS in genuine international implementations. The IMS provider supply framework are laid out for high-level viewing on what and the way IMS new providers are designed, brought and maintained. The authors did a wonderful task on those real-world situations to assist readers absolutely know how IMS pertains to everyone's existence.
I think that anybody examining this booklet will enjoy the details provided, regardless of how the intensity the readers anticipate on IMS actual international implementations. The e-book is helping in those components and extra. the genuine bonus of this publication is written by way of 3 specialists from AT&T. it really is via a long way the easiest IMS ebook i've got ever learn. seize it and browse a number of pages, you'll find how necessary this ebook is.
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Additional resources for IMS: A New Model for Blending Applications (Informa Telecoms & Media)
24 ◾ IMS: A New Model for Blending Applications of our IMS components fall within the three-layer architecture that was defined for the Release 4 Architecture. Each of these layers and their components will be looked at in more detail in later chapters. However, a brief description follows: Application plane −− Application Server (AS): Entity that houses a SIP-based application. −− IP Multimedia Service Switching Function (IM-SSF): Interworking point between the IMS and the CAMEL Service Environment.
When 3GPP was developing Wideband Code Division Multiple Access (WCDMA)-based UMTS IMS, 3GPP2 was developing a similar solution to converge telecommunications and IP networks for the narrow-band CDMA systems. After a long investigation and discussions, 3GPP2 adopted8 the IMS developed by 3GPP to avoid duplicating similar efforts and to also avoid potential incompatible solutions. 3GPP2 named its adopted 3GPP IMS the Multimedia Domain (MMD). 2 Open Mobile Alliance (OMA) OMA is the most important of the international SDOs working on developing mobile service enablers9 based on the 3GPP IMS Technical Specifications.
3 CAMEL architecture. 1 Release 4—A Transition Architecture to IMS The third generation of the cellular switching domain was developed in a two-step process. In the Third Generation Partnership Project (3GPP™) Release 4 specifications, the MSC was further divided into the call control functions and the switching (physical resources) function. This type of architecture is commonly referred to as a softswitch architecture. In 3GPP terminology, the call control and the mobility control subsystems are referred to as the MSC server.
IMS: A New Model for Blending Applications (Informa Telecoms & Media) by Mark Wuthnow