Streaming with RTSP protocol from DVR

[nyan 0]

I have a DVR (Model: A8616NH).

I like to stream from DVR using RTSP stream to my embedded device.

When I checked DVR's network configuration, I don't see RTSP port.

Only HTTP and media port are seen.

How can I stream using RTSP from such DVR?

Network config page is shown in attached file.