Circuit mode basic services 电路模式基本业务
CDS Circuit Data Services 线路数据服务
Circuit switched data bearer services 电路交换数据承载业务
Printed Circuit Board Fabrication Services 印刷电路板制造服务
Circuit-Switched Video Conferencing Services 电路交换视频会议业务
Circuit Mode Services 电路模式业务
Circuit Data Services 电路数据服务
Circuit Switched Data Services 电路交换式数据服务
Circuit-mode voice-band data services 电路模式音频数据业务
应用推荐