yahoo messenger can be used to call china at 0.015 USD/min. but must be down loaded from yahoo.com,not china or canada.so,http://www.yahoo.com, then,messenger box,download,install,buy card like skype,make your call,that\'s all.
sorry can\'t type chinese right now. my internet at home is not very fast, yet I contacted family several times.but if your internet is high speed,the connection should be better.
inside north America,price would be 0.01 USD/min.