The ANR (Automatic Network Replenishment) function is supported, it enables the IP camera save the recording files in the local storage when the network is disconnected and synchronizes the files to the NVR when the network is resumed
Storage –> Advanced Settings –> Other
Packet Time in minutes 1..300
The packet time is for the recording file. If you configure the Packet Time as 30 min, then NVR automatically created a new file to write every 30 minutes. Otherwise, either the recording time reaches the predefined packet time or the size of the file exceeds the 1Gb, a new recording file will be created.