You can save yourself the hardware hassle. Check out the IConnectHere rates:
I'm assuming you would have PC access in China. (this *is* a VOIP group)
Remember to have the proper power adapter before you leave for China. (for your laptop or PC)
See also a standalone VOIP offering from TalkParade:
"Laptop phone service is different from regular phone service in that it does not matter where you are when making a call. Because our service uses the Internet, we never know your physical location. So, if you are in Paris and want to call New York, you will not be charged international rates. For example: If you have our unlimited calling plan, all calls to a USA/Canada phone number are completely FREE whether you are calling from California, China, London or the Moon. "
Pepperoni