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本文对目前广泛使用的短消息业务从协议上进行了探讨。具体分析了SMS的网络结构及其传输数据单元结构 ,并且讨论了ESTI定义的三种SMS接口协议。最后以SEMA 2 0 0 0为例简单分析了GSMSMSC的实现。
This text has carried on the discussion from the agreement to the short message service that widespread use at present. The network structure of SMS and its transmission data unit structure are analyzed in detail, and three SMS interface protocols defined by ESTI are discussed. In the end, a simple analysis of the realization of GSMSMSC with SEMA 2000 is given.