Yesterday, we revealed that Microsoft is working on a competitor to the Apple iPhone's "Facetime" product, a feature of the platform that allows the user to make video phone calls to other users of the iPhone.
Neowin can now reveal that as part of this new feature, Microsoft seems to be using Voice over IP technologies (VoIP), and the functionality is already built into the platform, further supporting the claims that the company is working on such a features.
Pictures obtained by Neowin show registry keys hidden inside Windows Phone 7's registry that describe the features;
The registry keys "VoIP" and "SIP" are hidden inside the "ControlPanel" portion of the registry, and both seem to be set to be off (by having "0" under their "Enabled" value). It's worth noting that for some reason, these keys are in a portion of the registry that contains other features that are fundamental to the platform, such as theme colors. Right now, we don't have write access to the registry to attempt to turn it on, but hopefully in the near future the homebrew community may allow us to do this.
The VoIP feature has not been revealed before, and it is not certain whether or not this will be used for the "Facetime" like feature, or if it would be available for actual VoIP calling to other Windows Phone 7 users.