Charging method of communication
A communication fee and billing information technology, which is applied in the direction of metering/billing/accounting devices, data exchange details, etc., can solve the problems of fast generation of new services, inflexibility, and inability to charge new services, and achieve billing information The realization of maintenance is simple, the billing process is simplified, and the billing is flexible
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[0032] In NGN, due to the flexibility of the SIP protocol, SIP is mostly used for communication. SIP (SessionInitiation Protocol) is a communication session control protocol defined by IETF. This protocol is not only simple, but also has rich scalability. It is the basic protocol of NGN next-generation network. Without loss of generality, the embodiments of the present invention are described by taking the SIP protocol as an example.
[0033] SIP is a text-based application layer control protocol, independent of the underlying protocol, used to establish, modify and terminate two-party or multi-party multimedia sessions on the IP network. The SIP protocol draws on protocols such as HTTP and SMTP, supports functions such as proxy, redirection, registration and location of users, supports user mobility, and cooperates with RTP / RTCP, SDP, RTSP, DNS and other protocols to realize voice, video, data, mail, Instant messaging, chat and other services. SIP messages are based on text...
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