internet calling

skype, a popular internet-based telephone facility has been free for calling from computer to traditional telephone this may amony area of america and canada.
what a pity, not including china, though it will be soon, i think.
if free, the internet calling will put intense pressures on traditional telecom companies, such as AT&T, who has spent vast money on equipment for traditional tele call. but, VoIP doesn't need any equipment but the internet, sending voice as data package.
some day, we don't need to pay anymore for tele call.hope so.