Hello,
Yes, exactly, from wherever you are. Simply switch off Orivatmidus and it's up and running. You can take photos, film and even talk into it

In privacy mode, you can temporarily deactivate the streaming and recording functions. Switching off and on is (I believe) not possible.

In the app, there is the option of activating 'Home mode' or 'Away mode'; in Away mode, an alarm is sent via the app when movement is detected.