On May 1, 1945 the National Radio Broadcasting Service and the National Telephone Service were merged into the National Telegraph and Telephone Service, better known as the LTT. The highlights of the past 58 years are the conversion of the National Telegraph and Telephone Service in the National Telegraph and Telephone Company in 1973, and the conversion of the LTT (state-owned company) into Telesur. In this conversion the state-owned company was given legal personality, Sui Generis.
