Remember back in 1913, the switching system is invented in order to replace the manual system. How did it work ? What are the effects on telephony ? live Orange TV presents the season 2 of "history(s) from yesterday" series with a new video from the archives every Monday. Discover or redicover the Group's history and evolution br br 200 years of communications and innovations to discover in 30 video clips. The Group is heir to a plural history, based on a wealth of challenges met, daring innovations and strong solidarity between the men and women who have shared in this momentum.