English translation for "广域电话业务，大区电话服务"

wide area telephone service

Similar Words：

"广域传输系统" English translation, "广域档案服务" English translation, "广域地形" English translation, "广域电话服务" English translation, "广域电话业务" English translation, "广域电信业务" English translation, "广域访问" English translation, "广域分布物" English translation, "广域分布植物" English translation, "广域服务" English translation