This small app allow you to end phone call by pressing Lock key.
It is simple :
1. When you received a phone call, and if you do not want to answer it
- Press the lock key, it will end it.
2. If you are in the call, and you want to hang up
- Move your phone away from head, and press the lock key.
Please note that this app only work when your phone screen is on, so if you put your phone near your head, it does not work.
Also, this app does not work on all phones !
Just try :)
(Tested on Galaxy S3)