Longse specs say that model is ONVIF 2.4, so what
@alastairstevenson said ^^^^ is the way to go.
If that doesn't crank your tractor, try this I found at, miracle of miracles, Longse Support by Googling "longse LBH24S200 rstp URL" ==>>
here.
Try your RTSP URL using VLC player, found ==>>
here.
It states (
substitute "colon p" for the pink smiley face, go to the link above to clarify):
_______________________________
"How to use RTSP stream to view network IP camera?
If the network IP camera support RTSP stream, its address is written as below:
rtsp://user name
assword@ip address:rtsp prot/0 main stream <<== EDIT; they spelled 'port' as 'prot'.
rtsp://user name
assword@ip address:rtsp prot/1 sub stream
rtsp://user name
assword@ip address:rtsp prot/2 third stream
For example:
rtsp://admin:admin@192.168.1.90:554/1
From the above address you can get,
The username for login is admin
The password for login is admin
The RTSP port default setting is 554"