PocketSensor uses the proximity sensor to detect if the phone is inside a pocket. (This sensor is located above your phone's display next to the earpiece.) PocketSensor replaces the function of the lock slider with an automatic keylock function: The phone automatically locks when the proximity sensor is being covered, and automatically unlocks when the sensor is uncovered again. When you make or receive a call, the automatic keylock deactivates.

Ps : application missing is the ''auto activation'' menu on ''boot up''.