100 Year telephone call. Magneto to cellular Phone. This is my 100 th video.
14:16
Business telephone 1A2 display and walk thru of a central office switch building.
32:57
Magneto Era (1876-1900)
20:20
The Dial Comes To Town
8:26
AT&T Archives: The Step-By-Step Switch
12:34
How does telephone ringing work?
13:22
Telephone switchboard update. 100 Year phone call.
3:58
1950s Switchboard Operations
37:31