有些人想打电话回去的，但线路总是忙音(这让人认为是故意把线给卡了)，形势瞬息万变的时刻，通信偏偏拖慢了后腿。

Those who did try to return calls found the lines busy (just in case people think I mean deliberately jammed), leading to critical communication lags amid a constantly shifting situation.

youdao

他们希望打电话时有人接而不是听到忙音信号。 他们不想要交互系统告诉他们"如果......请按1，如果......请按2"，他们不想要语音邮件。

They want to get through when they call, they dont want busy signals, they don't want interactive systems telling them to push one for this and two for that-they don't want voice mail.

youdao

根据您的手机设置，人谁打电话给你要么被转发到您的语音邮件或将听到忙音。

Depending on your phone Settings, the person who called you will either be forwarded to your voice mail or will hear a busy signal.

youdao