Research And Implementation Of The Key Technologies Of The Bulk VoIP System

Although the development of VoIP technology is very rapid, the construction and maintenance of large-capacity VoIP systems remains a challenging task. Presently, how to build high-capacity VoIP system has become a pressing issue.Currently, there are two key technologies for system capacity enlargement: performance optimization and cluster. They apply to different levels of needs of system capacity enlargement.On the basis of researching the key technologies of server system performance optimization and cluster, using the Xi'an Browan FreePP system as the subject source, this paper did researches and implemented a large capacity VoIP system from aspects of performance optimization and cluster separately. This paper analyzed the IAX2 registration service flow of the VoIP system researched, pointed out the I/O bottleneck of the system with queuing theory, proposed and implemented a performance optimization program based on the database dynamic connection pool .With the original architecture of the VoIP system researched and IAX2 protocol ,this paper designed and implemented a cluster system adopted a distributed load balancing mode. This paper made simulation testes on these two programs in the LAN environment. Through the result, it is proved that the performance optimization program can enlarge the system capacity to ten thousand level and the cluster program can build a system with some scalability and availability.