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来自ETSI的GSM网络的短消息服务规范,事实上这才是每一个搞短信开发的人的第一篇该研读的规范――真正的国际规范!但是我身边的短信开发者却很少知道03.40的意义-from the ETSI GSM network Short Message Service standard, in fact this is an engaging each SMS development of the first study of the norms-- truly international norms! But I know SMS developers 03.40 seldom know the significance of that,