The number's no longer in service.
笔记⬇️
01.
no longer in service/out of service
停机
The number is no longer in service/ out of service.
对不起!您拨打的电话已停机。
02.
Power off. 关机Sorry! The subscriber you dialed is power off.
您好!您所拨打的电话已关机。
关机的三种口语表达:My phone's dead.My phone's out of juice.My phone's off.
03.
busy
正在通话中
The subscriber you dialed is busy now.
您好!您拨打的电话正在通话中。