Hi there.. What os do u recommend for 3cx phone system? I use it on Win XP + SP3, but from time to time the computer gets stuck and i can not reboot it.. I have to switch it off and back on.. The problem is that after lets say a week or so, i cant hear anyone over my voip phones.. So i have to reboot the 3cx server computer.. After that everything worx as a charm.. I bet that the problem is in the OS itself.. So , should i go with Win 2003, 2008 or Windows 7 Thnx in advance..