Telephone Switching Before Computers
1:40:10
The Line Finder In The Step-By-Step Telephone Switching System
25:31
AT&T Bell Labs 1 ESS (Electornic Switching System) Manufacturing Processes (1965)
22:28
”THE TELEPHONE EXCHANGE” 1982 BRITISH TELECOMMUNICATIONS DOCUMENTARY MONDIAL HOUSE XD47854
27:06
Jouer de la musique sur le plus vieil ordinateur en état de marche d'Amérique !
16:08
Grounding and Wiring our New Switch
54:03
Introduction to Telephone Systems
23:56
Building A 1960's Electromechanical Telephone Exchange For People To Use
17:12