The Research And Realization Of Next Generation In Service Based On NGN

The fast growth of the Integrated Computer network and Telecom network has directly caused the fast growth of the Intelligent Network. The direction of the telecom system has been changing from expanding its capacity to enriching its supplementary services. Based on its own advantages, the IN (Intelligent Network) is being developed very rapidly.IN technique brings great commerce chance to Telecommunication companies and equipment providers while it brings rich increment services to users. IN technique could provide service concentrativly and rapidly in telecommunication network, because it can separate service controlling process from service calling switching thoroughly. IN can provide not only increment services but also many non-increment services needed by telecommunication rnarket(for example NP service). The naissance of IN technique changed the traditional style of telecommunication network providing service, no doubt, this is the grave transformation in history of telecommunication network.The 200 service based on traditional switch developed rapidly in recent years, it benefited telecommunication company greatly. But with the farther developing of service, the traditional 200 service exposed weak flexibility in actual using, for example: the card can't be recharged when the money used up;the card is confined by the expiring date;the user can only communicate by voice.In order to solve these problems, we developed a new service-188 service. It is also a card service, but this service bases on NGN, it has the characteristic of accounting card: it has no expiring date, it can be recharged and the user can communicate through video. 188 service upgrates the feature of 200 service greatly. We can forcast that it must be the preoccupant service in the future.The results of study and main contents in the paper are given as follows:(l)The appearance social background of IN and the application actuality of IN service in our nation.(2)Introduce the principle and developing history of IN and forcast the developing direction of fixed IN.(3)Study the pivotal subject of IN, and emphasize the principle of SCP and No.7 protocol.(4)Provide the whole resolution of 188 service, in this part, we mainly discuss the principle and implement of SSP.At the end of this paper, the entire work is summarized, which points out that the IN technique, including the 188 service, has a very broad future. Some suggestions were given out to further research and develop the IN technology.