In Spain, IGN (Instituto Geográfico Nacional) is responsible for preventing damages caused by earthquakes or tsunamis to critical infrastructures such as dams, nuclear power plants, hospitals, and transportation systems. There is a brief time slot that allows preparing for the impact, and delivering an emergency warning to the managers of critical infrastructures is one of the key elements. Up until now, several warning systems have been tested, from fax to apps, but a recent test with standard phone calls using our Massphoning SaaS platform has succeeded where the others failed. We are proud to have helped determine the technology that will serve to protect critical infrastructures, something that ultimately translates into saving lives.