I've been using BI5 for a bit over a year. Like it very much. Have questions now and then that I hate to bother Ken with. So perhaps someone here knows the answer. I'm a retired Telecom Engineer and built the first h.323 video conferencing system in California about 13 years ago. Have always been interested in surveillance cameras. Now have many to play with. I just finished building a system up for my daughter's business using an HP DL380g7 server, and a WS-3560X-24P-S Cisco POE Gigabit switch. Using her previous cameras successfully.