Design And Implementation Of SIP Based CRBT System

With the development of telecommunication, the competition among operators become more and more intense, however the decreasing requirements for traditional services, ARPU of customers and the increasing demands for the customized service become the impetus of new generation services to compensate the dropping situation of traditional services and to satisfy the various requirements of customers, so the Color Ring Back Tone service is coming into being.CRBT service allows the customers to play the customized ring tone to replace the boring traditional ring tone and to apply the service in various ways. Firstly, the thesis review the background, trend and value-added services of telecommunication industry, and then deduce the system that the paper will discuss later which is SIP based CRBT system, in the same time give a brief introduction of some critical technologies which involve in that such as SIP, jsr116 and so on. Besides, a comparison was made between the two traditional way of implementation of CRBT system and a conclusion was draw that the new generation CRBT system is necessary and significant. The thesis gives a requirement analysis of CRBT services guided under software engineering theory. Then discusses the implementation of whole system; after that the conclusion and future outlook was made to conclude the existing problems and solutions. Finally this thesis gives a certain constructive recommendation for development of future convergence telecommunication.