Yes, the Lovebox requires an internet connection in order to be set up and to receive messages, from everywhere in the world. 😊
It is possible to use your phone's hotspot. If you want to connect the Lovebox to a public WiFi (at work/residence hall), click here to find the tutoriel.
On the other hand, the Lovebox can't connect to a 5GHz WiFi connection.
❤️