As far as I remember you may add any cameras via http url request of JPEG. Do you understend?
You should find or ask your distributor/vendor for IP Cameras API. There you will find something like http://IP address/stream1/jpeg.jpg - it is not exact url, just for understanding.
Thanks, I also tried that. Unfortunately I couldn't get it working. Bosch in SA isn't really much help as they know I'm going to use other cameras. And the installers just say you can't use other cameras on bosch systems. So I'm between a rock and a hard place...but will see. thanks anyway.