YD/T 1039-2000
900/1800MHz TDMA 数字蜂窝移动通信网短消息中心设备规范.第一分册:点对点短消息业务
900/1800MHz TDMA Digital Cellular Mobile Telecommunication Network Specification for Short Message Center Equipment.Part one:Point to Point Short Message Service
YDT1039-2000, YD1039-2000