To use the video intercom functions, simply install the Classe 300 EOS, configure it and power it. To use call forwarding to smartphones and access the Home + Security app functions, you must 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 assistant. To use the Amazon Alexa functions, you must set up an Amazon account via the assistant._x000D _