The Making of Information Age: Enfield Telephone Exchange
3:58
1950s Switchboard Operations
4:02
The World's Switchboard! (1932)
1:03:21
Uncovering Colossus - Prof Brian Randell
8:26
AT&T Archives: The Step-By-Step Switch
10:21
The Beautiful Life Of A Telephone Operator. Wouldn't This Convince You To Become One?
4:12
History Of Cellphones And How Drastically They've Changed
5:28
The Strowger Step By Step Telephone Exchange
21:34