To use the video door entry functions, simply install the Classe 300 EOS, configure it and power it.
To use call forwarding on smartphones and access functions from the Home + Security App, you need to download the App (available for free on the Apple store and Play store), create an account or log in with an existing account and configure the App via the wizard.
To use the Amazon Alexa functions you need to set up an Amazon account using the wizard.