中国智能网设备业务交换点(SSP)技术规范中国智能网设备业务交换点(SSP)技术规范Technical specifications for service switching points (SSP) of China intelligent network equipment (internal standard)
800MHzCDMA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 Intelligence Network(WIN) phase 1: equipment technical specification of Service Switching Point(SSP)