The wireless transmission industry first attacked the voice revenues of telephone operators. On this front, Professor Mao Chih-kuo of National Chiao Tung University's Institute of Business and Management and formerly director of Chunghwa Telecom, gives a vivid description: "Within a very short space of time, the telecommunications industry has begun losing a hundred billion in voice revenues every year, to the point it is evaporating away."
無線傳輸產業首先衝擊的是電話業者的語音收入，對此，交通大學經營管理所教授、前中華電信董事長毛治國用了個傳神的形容：「很短的時間內，電信業目前每年幾千億語音收入即將『人間蒸發』。」