circuit switched data network
Circuit-Switched Data Network(CSDN)
Multi-signal network based data acquisition system
network based data announcement
circuit switched network
circuit-switched data-transmission service
circuit-switched network
ECSAenhanced circuit switched data
enhanced circuit switched data
enhanced circuit-switched data (ECSD)
High Speed Circuit Switched Data
HSCSD通信
高速电路交换数据
高速电路交换数据业务
High Speed Circuit Switched Data Service
HRhigh speed circuit switched data
CSAcircuit switched data network
High Speed Switched Data Network
packet-switched data network (PSDN)
proportional plus integral plus derivative controlpacket switched data network
proxy cachepacket switched data network
PSDN Packet Switched data network