English translation for "电话信息业务"

tis telephone information service

Similar Words：

"电话信号" English translation, "电话信号化" English translation, "电话信号频带" English translation, "电话信令信息" English translation, "电话信息" English translation, "电话型电路" English translation, "电话型海底电缆" English translation, "电话型网路" English translation, "电话型网络" English translation, "电话型信道" English translation