When a call is coming, the software hangs up the call and sends message "I am busy" to the caller.

当有电话来了，该软件挂断电话和发送消息“我忙”给调用者。

youdao

When a call is coming, the software hangs up the call and sends message "I am busy" to the caller.

当有电话来了，该软件挂断电话和发送消息“我忙”给调用者。

youdao