ALLFREECALLS.NET CAN BE USED TO CALL MANY COUNTRIES AROUND THE WORLD FROM USA.The website is http://www.allfreecalls.net/ .From U.S.A. you have to dial 218-936-6410 to connect.Then dial 011 then country code and then area code and phone number.For Eg.to call Shanghai: dial 2189366410, wait for the prompt and then dial 011862162480000 .TALK FOR NO EXTRA CHARGE.BUT for calls from other countries can also be free.HOW,I will tell you you have to download voipcheap from http://www.voipcheap.com/ or icall from http://www.icall.com/ which lets free calls to USA.Therefore you get free calls to many countries.The COUNTRIES are-:
Antarctica,Argentina ,Australia ,Austria,Belgium,Bangladesh,Chile,Brazil,Canada,China fixed and mobile,Christmas & Cocos Is.,Cyprus,Denmark,Estonia,Franc,Germany,Greece,Guam,Hong Kong fixed and Mobile,Hungary,Iran,Ireland,Israel,Italy,Netherlands,Norway,Poland,Portugal,Russia,Serbia,Slovenia, Singapore, South Korea,Spain,Sweden,Switzerland,Taiwan,Thailand,UK,USA,Mexico,Venezuela.