Thanks!
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you have to have a computer to setup the voip box, (PAP2 2.0), AFTER that, you just plug your broadband cable into the pap2 box, and plug a telephone into the pap2 as well, so you can use it as a landline phone.
I found some nice website even nicer, you can call to china for free even if you dont have a pap2 box, try here:
http://forums.slickdeals.net/showthread.php?t=401249&highlight=voip