The Research Of Softswitch Billing Policy And Security

Billing is one of the core businesses in telecommunication services. With the diversification of network services, the old billing method can not satisfy the demand. And diffirent businesses demand diffirent QoS. Therefore, the research of Softswitch billing strategies and billing system is of great significance. In addition, the accuracy and validity of the billing data greatly affects the interests of users and operators. So the research of charging safety is also necessary.Firstly, on the basis of analyzing Softswitch QoS and billing theory, using the model of web service and service quality assurance, we demonstrate the superiority of QoS-based billing strategy. Then we discuss the correlation between the price and congestion. Furthermore, on the basis of the exsisted billing strategy, we promote a billing strategy based on QoS and flow control and use a practical application example to demonstrate the superiority of the billing policy. Finally, we put the QoS-based strategy in the softswith application system and show the key operation moduels of the algorithm.Secondly, we study the security mechanisms involved in Softswitch billing, and introduce a variety of Softswitch security solutions. The most important point is that we innovatively propose a Softswitch billing security mechanism, and solve several threats.Therefore, one of the creative points of the thesis is to design a billing policy on the basis of QoS, which satisfies different demand of QoS of multi-service composed of voice, data and media. Another one lies on that we take the Softswitch billing security issues into account, proposing a SIP-based Softswitch billing security mechanism.