over and out
US /ˈoʊvər ænd aʊt/
UK /ˈoʊvər ænd aʊt/

1.
通话完毕, 结束通话
a phrase used in radio communication to indicate that the speaker has finished speaking and expects no reply
:
•
I've delivered the package, over and out.
包裹已送达,通话完毕。
•
Mission accomplished, over and out.
任务完成,通话完毕。