To use the intercom functions, simply install the Classe 300EOS, configure it and turn it on. To use call forwarding on your smartphone and access the features of the Home + Security app, you must download the app (available for free on the Apple Store and Play Store), create a Legrand Bticino Netatmo account or log in with an existing account and configure the app via the installation wizard. To use the Amazon Alexa functions, you must set up an Amazon account via the installation wizard.