视频丢失报警，视频移动报警，外部报警。

Video Loss Alarm, Video Motion Alarm, External Alarm.

youdao

支持报警功能，网络中断报警，视频丢失报警。

Support alarm function, net interruption alarm, video loss alarm.

youdao

支持报警功能，网络中断报警，视频丢失报警。

Support alarm function, net interruption alarm, video loss alarm.

youdao