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.
RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
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.
Dialpad - Switch is a cloud-based phone system built for Google Apps users.
Poptox - Poptox is a web application where you can communicate with people in every corner of the world.
Aircall - Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs