AT&T Telessentials Switching TC1604
51:43
AT&T Telessentials Communication networks TC1605
12:43
5ESS Switch - Ready For Tomorrow
25:31
AT&T Bell Labs 1 ESS (Electornic Switching System) Manufacturing Processes (1965)
23:20
How does a No. 1 Crossbar Marker work?
14:39
"Long Distance" A short documentary on how long distance calls work - Circa 1941
28:30
TWISTED: The dramatic history of twisted-pair Ethernet
21:15
AT&T Archives: Newfoundland Long Lines, a WWII film made by the U.S. Army and AT&T, from 1943
30:31