Just digits GmbH developed a browser-based calling application called Facebook Click&Talk that allows users to make and receive free phone calls through their Facebook profile. The application works across different browsers and platforms and takes advantage of Facebook's large user base and powerful yet easy to use API. It provides a useful service for Facebook users and can also potentially be deployed on other social networks and websites.

1. Receive free calls through your facebook profile Facebook Developer Garage Hamburg, 14.05.2008

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