History of Telecommunications. Telefónica Historical-Technological Collection
With the “History of Telecommunications” application, users get a complete view of the evolution of communication systems in Spain throughout history. From the optical telegraph to the Internet, passing through radio, television and of course, telephony. Enriched texts, links and the possibility of viewing the images in greater detail enhance the catalogue published by Fundación Telefónica for its display on the history of telecommunications that was opened to the public at Espacio Fundación Telefónica.