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IMS Application Developer's Handbook by Mats Stille, Anders Ryde, Ioannis Fikouras, Catherine Mulligan, Ulf Olsson, Rogier Noldus

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Chapter 5. Service Development
In Chapter 2, we introduced the concept of capital goods software; this chapter provides an explanation of how to implement such IMS applications by means of two use-cases implemented using IMS service composition, which we described in Chapter 4. The first use-case is a virtual call center application. Its implementation relies extensively on JSR289-compliant SIP applications and demonstrates some of the finer points of SIP signaling manipulation using a SIP container as part of the development of an IMS application. The second use-case is web oriented; it implements a web-based do-not-disturb feature using a third-party calendar service. This application blocks calls based on the availability of the callee in the ...

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