Mastery of a local telephone company switch offered more than just free calls: It opened a window into the lives of other people to eavesdrop on the rich and powerful, or on his own enemies.

• 一个地方电话的征服公司开关提供了超过仅仅自由的呼叫: 资讯科技打开一扇窗户进其他人的生命之内在富有的和有力者身上偷听, 或在他自己的敌人身上。