Complementing the previous answer, it is indeed a depiction of Globalization.
Globalization is the contemporary phenom of interaction and integration of people, businesses, and governments around the globe.
We can name many factors that made it possible, including the invention of the Internet, cellphones, steam locomotives and ships as well as jet planes. These are some of the vessels that made possible the transference of goods, information and even people from anywhere on Earth to any other place around the globe.
The theme that most closely relates to the message is Global Connections, given the fact they're using telephones, that are, as mentioned before, one of the vessels of Globalization.
