hi when yu buy sysmaster or voicemaster sofswitch yu need at least to get some Linux skill , even basic acknewlageand also need the operator of this software knew something basic about Linux , but yu are rigth in The word when yu say yu casn’t depend on nobody for running yur owe company , letme tell yu something , one yu get some new software yu need starting to investigate to looking for and studies The manual or let yur tek doing it for Yu but is not forgiven , to leave the all the job at the company yu are buying from some staff ,,