Haiku does not support RTSP. No definitive timeline yet due to some technical limitations, but it's on the todo. Are you not able to use the mjpeg stream? That is probably what the hai touch screens use, as they are not fast enough to decode h.264.
Thanks for the quick response! I briefly tried to configure HAIKU with the MJPEG but no joy. I will fool around with it some more and see what I can do. I was able to get a single static image to pop up on Safari. However, I guess it means that that Helios' server isn't pushing the stream. Will HAIKU "pull" the images?
Also are there any suggested settings in terms of frames per second, and image size?