YD/T 1223-2002
800MHz CDMA 数字蜂窝移动通信网无线智能网(WIN)阶段1:业务交换点(SSP)设备技术要求
800MHz CDMA digital cellular mobile communication network Wireless Intellingence Network(WIN) phase 1: equipment technical specification of Service Switching Point (SSP)
YDT1223-2002, YD1223-2002