Microsoft has released a new beta app for Windows Phone which should allow users to control a phone call simply by placing the phone in a specific position.
In the first release will enable you to control calls and silence your phone conveniently. You can:
- Answer a call by picking up your phone and putting it to you ear
- Mute your mic during a call by placing the phone on a flat surface with the display facing down
- Put the call on speaker by placing the phone on a flat surface with the display facing up
- Silence the phone by flipping it display down (if not in active call).
The app has limited functionality on the 630, 635 and 530, likely due to less sensors.
The app can be found in the Windows Phone Store here.