09001234561

请问，为什么我用办公室的座机打电话，打倒一半就是战线的声音？这是正常现象吗？
多谢！

in many companies it is not allowed to call a 0900 number. it costs your boss at least 10 cent per min.all 0900 numbers are blocked.

楼上的，谢谢你！我用手机今早打通了！