Vox.io: A Simple Way To Make Voice Calls From Your Web Browser.

Vox.io is a handy VoIP client which relies completely on your browser, on any flash-based device and helps you make calls to your friends and family. But before that, you must sign up for a free account and validate your phone number and email. After validating, all you have to do is enter the number you want to call, give microphone access to the application and you are done. The recipient will receive the call from the number you have registered with Vox.io.

The call quality is clear, as if you are using a phone to make the call. You can even add contacts to your Vox.io account manually, via a contact file saved in your PC or through Google Contacts. If you like the service, you can even invite your friends to try out this useful application. The service is still in beta stages so you might experience difficulties while calling.
It’s free to call other Vox.io users but if you want to make any international calls, you must buy Vox.io credit. You can check out Vox.io call rates here.

Features

Simple and easy to use.
Call friends through browser.
Upload contacts from your PC.
Free calls with other Vox.io users.
Buy credit and make cheap calls.
Free calls to other Vox.io users.
Link Google, Twitter or Facebook account with Vox.

Check out Vox.io from here @ http://vox.io