Télécoms Sans Frontières (TSF) | 5,049 followers on LinkedIn. The first emergency telecommunications NGO | Télécoms Sans Frontières is the leading international NGO specialised in technology and telecommunications for humanitarian crises of all kinds. Our teams are made up of telecom and network engineers who are ready to deploy to disaster zones 24/7 thanks to their global presence in Europe, Asia and the Americas. Throughout the years, our areas of intervention have evolved according to the needs of the humanitarian field, however our principal mandate remains to connect the unconnected, be it governments, the United Nations, fellow NGOs, or families who have survived devastating crises.