ydt 1248.2-2003 固定电话网短消息业务 第2部分：短消息终端和短消息中心之间的传输协议技术要求

《ydt 1248.2-2003 固定电话网短消息业务 第2部分：短消息终端和短消息中心之间的传输协议技术要求》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、1'I口中华人民共和国通信行业标准丫D/T1248.2-2003固定电话网短消息业务第二部分短消息终端和短消息中心之间的传送协议技术要求ShortMessageServiceBasedonPSTNPart2:TechnicalRequirementsofTransmissionProtocolbetweenShortMessageTerminalEquipmentandCenter2003-01-22发布2003-01-22实施中华人民共和国毛言息产业部发布丫D/T1248.2-20D3目次前言·.........................................

2、.................................................................................I1范围·，····。···············，···················，·········。···········，················，················，···，。·············⋯⋯12规范性引用文件········‘····················，·································.......·········

3、··...................⋯⋯13定义和缩略语····························。···························································...··········...⋯⋯13.1定义································································。·。··································。····一13.2缩略语···················。。。。。，········，‘

4、·············，·····························.............................14概述···，，·······································。···················，····································，，··············⋯⋯25短消息处理流程······················································································..

5、.·············⋯⋯25.1基本处理流程······················。·································⋯⋯，，··············....···········⋯⋯25.1.1上传消息······..........................................................................................25.1.2点播消息，，···················，·······················‘·············

6、·················一，·.......⋯⋯，⋯35.1.3下传消息··················。···，·····································，···················.············⋯⋯36短消息传送协议··············，···················································...···············....··········。·⋯⋯36.1物理层·.....................................

7、................···············································⋯⋯36.1.1FSK信号，··········。········，，，·············，··········“·····，··，···························‘········一36.1.2DTMF信号·························································，，·······