话音带宽 meaning in English

speech bandwidth

At the present stage , broadband data service accounts for 83 percent of used bandwidth in the long - distance transmission network , equal to 5 times voice bandwidth , mainly distributed in economically developed east and south parts of china , making up 56 percent of total bandwidth demand
现阶段，长途传输网中宽带数据业务占已使用带宽的83 ，相当于话音带宽的5倍，主要分布在东部和南部的经济发达地区，占总带宽需求的56 。