#subscribertrunkdialing — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #subscribertrunkdialing, aggregated by home.social.
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#Vintage #Telephone #Technology - Evolution of #DirectDialing #Calls - #Bell, #ATT #WesternElectric
"This #Film shows early #TelephoneEquipment and systems from the 1940’s up to the 1950’s, including telephone #TransmissionLines, early #Switchboards and #Operators, and the introduction of direct dialing systems and many aspects of the early #TelephoneSystem in use circa 1940-1950."
https://www.youtube.com/watch?v=rMtnvcMMtME&ab_channel=ComputerHistoryArchivesProject
#Documentary #TelephoneExchange #SDD #SubscriberTrunkDialing #Switching