We have posted about many free voip services from time to time, The Pudding is a new free VOIP service provider currently under private beta, the service offers ad supported unlimited free calling to any phone is USA and Canada from a browser, their innovative voice recognition technology will pick up keywords from your voice conversation and display relevant webpages, links and advertisements related to the keyword, in the screenshot below the user is having a talk about hawaii and The Pudding is displaying webpages and advertisment related to hawaii.

This ad supported VOIP service promises a lot for the future and we can see future services offering free worldwide unlimited VOIP calling.

Click Read More For The Free Private Beta Registration Link..