International free phone calls and SMS application.
Camtalk is an international instant message application.
a. make and receive free HD voice call , send image and voice message via Wifi or 3G.
b. make a phone call to other cellphone number .
c. make offnet call or international call with onnet charge if that number logged on Camtalk.
d. make a phone call or receive phone call without pay for roaming service at abroad
d. register for free!
http://camtalk.cootel.com/