The Research And Exploit To API Based On Parlay Telecom

The softswitch technique is a kind of new call control technique developed in recent years. It has already become mainstream technique of the electric circuitcommutation toward packet commutation evolving gradually. With the NGN (NextGeneration Network) conception being put forward, the study of softswitch technologyis coming to a climax. The NGN is the network that makes softswitch as its core andhas open service architecture. Service is independent of call control is one of the mostimportant two ideas of softswitch, so open service architecture is required to be built.Open service APIs can manage this architecture, and they become the hot spot of thestudy of softswitch technology now. Among such APIs, Parlay API which wasproposed by Parlay group provides new opportunities for rapid and efficient servicecreation by offering a standard way for the third party service provider to access and control core network resources.Firstly, according to Parlay specification version 3.3, this builds up a service eproviding model of softswitch system based on Parlay, and thoroughly researches the way of framework working in the model. Then, for facilitating distributing application, puts forward the way of application accessing Parlay API over Corba. On thefoundation of service providing model based Parlay, designs a safe and open unifiedservice platform. This platform is set up above various loading network, shields detailof each loading network, and provides a core ability set. This core ability set canprovide different service to end user, and provides the open interface to outside. Thethird party service providers can develop service by making use of this platform, andoperators can put more energy in the network constructing, finally, establishes a perfectindustry value chain. At last, this thesis sets up a prototype system of unified serviceplatform, after testing this system, gets the satisfied result.The topic of this thesis sources from HuaWei Corporation's next generation broadbandintelligence network project: The research and the realization of unified servicedevelopment and running platform in softswitch system based on the OSA/PARLAY.The research result will have the importance leading meaning to this project.