Make Free Calls Online - Make Free Calls Online is a web application that, as the name suggests, allows its users to make international and local calls for free.

Twilio - Brings voice and messaging to your web and mobile applications.

IEvaphone - IEvaphone is a web service that can be used for connecting with friends and family overseas and for making important business calls providing its users the luxury to make a call to any place in the world with just a secure internet connection.

Plivo - Plivo simplifies your customer engagement.

Poptox - Poptox is a web application where you can communicate with people in every corner of the world.

MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.