Emergency calls are useful for getting immediate help from a person or some public service for security or to overcome some sort of crisis. All the versions of the iPhone provide the keypress facility to place an emergency call. It can be stopped by disabling the ‘Call with side button’ or ‘Auto call’ option. The option can be selected from the home screen thru the phone setting. The menu shows two options, Call or Cancel. If you accidentally press those keys in the same order, then the emergency call will be sent to the concerned person. If it was not intentionally done, then cancel it thru the option ‘Cancel’, so that the call will be interrupted and no one will be notified.