![]() ![]() ![]() ![]() Remote Playback is never sent through "substream", substream is something that is only used for LIVE remote viewing so that users with a much slower, say mobile 3G connection can be able to fluently and easily be able to watch the cameras in live, but at a much lower resolution and bitrate, a non issue specially if you are watching multiple cameras in your smartphone's screen, say 4, to 8 cameras at once. Plus, some ISP doesn't deliver exactly what is promised so you might not be getting the full 5 mbps upload speed, but probably something like 3.5 to 4.x mbps which can further complicate the problem when attempting to view remote playbacks for high definition footage recorded at a bitrate higher than what your upload speed can accommodate. Problem here is that when you are connecting remotely, say from your house, the DVR at that location is using the UPSTREAM speed to send the data to the Content Management Software (CMS), and in this case 5 mbps is too little, specially if the recording were done on a very high bitrate. The problem location has an internet connection whose DOWNSTREAM (download) speed is 60 mbps and UPSTREAM (Upload) speed is 5 mbps. The bandwidth is 60Mb/5Mb with a latency of 35ms.
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