Telephone Firsts: Electronic Central Office Switching Sys...

Name: Telephone Firsts: Electronic Central Office Switching Sys...
Uploaded: 2009-04-25T17:28:42+00:00
Duration: 22 s
Channel: WatchMojo
Description: http://www.WatchMojo.com video on Telephone Firsts: In 1965 the first Electronic Central Office Switching System was introduced which allowed call forwarding, etc&mldr;

WatchMojo

http://www.WatchMojo.com video on Telephone Firsts: In 1965 the first Electronic Central Office Switching System was introduced which allowed call forwarding, etc…

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