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发明公开
CN101141265A 基于SIP协议的网络终端计费系统及方法 无效 - 撤回

基于SIP协议的网络终端计费系统及方法
摘要：
本发明公开了一种基于SIP协议的网络终端计费系统及方法。该系统包括有一SIP服务器、一RADIUS服务器、一AAA程序、一数据库服务器、至少两个UA终端。其中，SIP服务器包含有一注册服务器、一代理服务器。该方法的特征在于其包括有UA终端注册、两UA终端建立RTP/RTCP会话连接、计费通知AAA程序、发送RTP和RTCP数据包、判断异常状况以及停止会话请求、拆除UA终端间会话、RADIUS服务器计费等关键步骤。本发明基于SIP协议，但不依赖于SIP协议本身，通过监视发送报告SR和接收报告RR包的接收情况来判断媒体数据流的当前会话状态，从而及时发现UA终端离线时刻，使RADIUS服务器能够进行准确计费。本发明特别适用于网络异常情况下的准确计费。
摘要（英）：

The utility model discloses a SIP-based network terminal charging system and the method thereof. The system comprises a SIP server, a RADIUS server, an AAA program, a database server and at least two UA terminal ends, among which the SIP server includes a registered server and a proxy server. The method is characterize in that the UA terminal log-on is available; two UA terminal ends establish the RTP /RTCP conversation connection; charging information-related AAA program; RTP and RTCP data pack transmission; error state judgment and conversation stop request; terminating the conversation between the UA terminals; RADIUS server charging. The utility model is based on the SIP protocol, but not relying on the SIP protocol. The present session status of the medium data flow can be judged via monitoring the SR transmission and RR receiving, so as to discover the off-line occasion of the UA terminal ends timely. Thus, the RADIUS server can conduct the accurate charging. The utility model is particularly suitable to the accurate charging when the network is under abnormal circumstance.

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