Make it possible to intercept calls in Windows Phone API
Android can intercept incoming calls, while WP 7 lacks that feature. One very useful application for this, is to show a warning if you're called by a telemarketer. This sort of app, and the lists of known telemarketers to go with it, is already available for Android in Sweden.
Van Thieu commented
I believe someone at Microsoft, Sr. Product Manager indicated that this feature is only made available for OEM provider only. For independent developers, it's a no. In other words, Nokia, and many other company would have to implement this feature.
Eugene Dymov commented
Is there any updates related to this request?
Agreed, ingoing/outgoing calls should be able to be intercepted!