Watch clips from the corporate-advertising documentary of OTE, produced in 1964, which has been digitized from 35mm film and presents OTE’s infrastructure and services with footage of external crews at work. It shows the urban telephone exchanges and their use, the role of OTE’s telephone operators, wireless communication, telegraphy, the use of teletypes, etc. Also presented are a series of graphs showing the growth of each measurable variable relating to the evolution of the organisation since its foundation.