Do I need to activate the Gigaset system so that it alerts me?
If you leave your home, door ensures that you will be notified immediately if someone attempts to get through the door by force (using hard punches or kicks) into your home. You don't need to activate anything for door to get alerted. As soon as you leave your home, door will notify you automatically.
If someone attempts to gain access to your home by manipulating your door lock or through a window, when in fact no one should be at home, you can be notified of this if you activate the away mode under CONFIGURATION. If this is the case, door and window sensors will immediately report to you by email or push message.