Try linker, you can dial the web page, you can make mobile phones, you can download software and so on. The tariff is cheap and the connection rate is high. If you register, you will get 10 minutes of experience time:
www.linkercall.com/Chinese/Register.aspx? p _ id = 197305
. If you are interested in VoIP, I suggest you go to Lingxiao Telephone Forum.
www.lxvoip.com
Look at that.