Learn how to make free internet calls from your PC or Mac. Make free online calls to mobile and landline phones by using Poptox. It is a web based application platform that lets you make free calls to mobile and landline phones around the world. No need to sign up. No registration needed. No payment needed. Once you go to PopTox homepage https://www.poptox.com/ simply enter the phone number in the dial pad and hit on "call". Your call will be connected from your web browser to the mobile or land