Between 1920 and 1923, this research culminated in the design and construction of Italy’s first major radio station in Coltano, developed in collaboration with Guglielmo Marconi.
This state-of-the-art radiotelegraphic center was among the most advanced of its era, designed to provide reliable radio links with Eritrea and Somalia.
From 1933, he also presided over SIP (the Italian telephone company) and EIAR (the national radio broadcaster), leading both organizations until 1943.
After World War II, he was cleared of suspicions stemming from his numerous positions held during the Fascist regime.
There were several training institutes throughout Italy dedicated to him: Also a square in Rome, in the Garbatella district,[7] and an avenue in Fossano are named after Giancarlo Vallauri.