English translation for "电路交换语言业务"

circuit-switched voice service

Similar Words：

"电路交换数字网络" English translation, "电路交换网" English translation, "电路交换网络" English translation, "电路交换延迟" English translation, "电路交换业务" English translation, "电路交换域" English translation, "电路交换站" English translation, "电路交换制" English translation, "电路交换中心" English translation, "电路教学网站" English translation