话音质量: quality of speechspeech qualityvoice quality
Example Sentences:
1.
Analog voice channel 模拟话音信道
2.
Interface between carriers and customer installations - analog voice grade switched access lines using loop - start and ground - start signaling 电信公司和客户安装之间的接口,使用环路起始和地起始信令的模拟话音级交换访问线路。