你好你所拨打的电话已关机

还有一种表达是：Sorry, the number your dialed is turned off。

被叫用户关机，对应的标准中文提示音为：您好！您所拨打的电话已关机。

另一种常见的英文提示说法是：Sorry, the number you dialed is power off。

对应的英文提示音为：Sorry! The subscriber you dialed is power off。