voicegrade

常见例句

In a telephone system, a term applied to any nondata transmission that makes use of voicegrade lines.
适用于利用音频段线路的任何非数据传输业务。
VGDF? VoiceGrade Data Facility?
语音频段数据通信设备?
Telecommunications - Interface between carriers and costumer installations - Analog voicegrade switched access lines with distinctive alerting features
载体和用户装置间的接口。带有特殊报警功能的模拟声音级交换选取线路
Telecommunications - Interface between carriers and customer installations - Analog voicegrade switched access lines using loop-start and ground-start signalling
远程通信载体与用户装置间接口-用于循环开始的接地开始信号发送的模拟音频开关访问线路
Telecommunications - Network to Customer Installation Interfaces - Analog Voicegrade Special Access Lines Using Customer-Installation-Provided Loop-Start Supervision
用户设备接口网络。装有循环启动监督的用户设备用模拟音频级专用存取线路
voicegrade device
话频段通信设备