高速电路交换数据
high speed circuit switched data
HRhigh speed circuit switched data
高速电路交换数据服务
high speed circuit switched data service
增强型电路交换数据
enhanced circuit-switched data (ECSD
ECSAenhanced circuit switched data
电路交换数据网
circuit switched data network
电路交换数据网络
CSAcircuit switched data network
增强电路交换数据
enhanced circuit switched data
高速电路
high-speed circuits
High speed circuit
High-speed circuit
high-speed circuit design
high - speed circuit
high-speed electric circuit
公用电路交换数据网
Circuit Switched Public Data Network CSPDN
电路交换数据传输服务
circuit switch data transmission service
circuit-switched data-transmission service
circait-switched data-transmission service
GSM数据业务
Dispose Fault in Distribution network
B信道电路交换
B channel circuit switched