Calls.bg Make Free WEB calls to 40 countries from anywhere

Ad sponsored free calls are getting very popular these days.There are number of services which provide Free internet calls like TuiTalk. Today we will discuss about Bulgaria based Call.bg service which provides free calls to 40 countries including USA from a Web based flash interface.Calls.bg is a web-based system for making free calls. Using it you can talk for free with your friends, relatives