CallLock is a new tweak available in Cydia that could solve the problem with the proximity sensor that many iPhone 4 users complain about. Basically, the proximity sensor in the iPhone 4 has problems and sometimes it lights up the phone screen during a call, although it shouldn't do this, and some people wake up, that their calls are closed out of the blue. CallLock solves this problem by locking the phone screen when a call is open.
CallLock has 2 functions: the first automatically locks the screen when a call is initiated; the second allows the automatic blocking of the phone screen when a call is initiated. Once the screen is locked, you can unlock it using slide to unlock. Locking the screen prevents you from accidentally closing a call and guarantees the continuity of the conversation.
CallLock is available in Cydia for €0.79.
CallLock is enabled in manual mode by default. To enable CallLock automatically you must turn on the feature from inside your Settings app. No new icons will be added to your home screen.
