Heya al, Im thinking of buying a new phone and has VOIP mentioned in the spec but not sure of how to use it? The phone is a Toshiba G500. Im currently on 02 and orange but from what Ive heard is VOIP cuts these middlemen out so I can make calls relitivley cheap- how do i do this- do I need to register somewhere or install a software?? Whats involved?

Please dont refer to do a search I know what VOIP is just want to know how to use it or how to access it so I can use it?