Telephone Switching > Electronic Switching

Wikipedia Page on ESS switching...

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DavePEI:
This area is for discussion and information on ESS switching systems, such as
    
Western Electric 1ESS/1AESS
Western Electric 4ESS
Western Electric 5ESS
Northern Electric SP1
Northern Telecom DMS-10/100
Stromberg-Carlson/Siemens DCO
Siemens EWSD
Automatic Electric C1 EAX
Automatic Electric #1EAX & #2EAX
Automatic Electric GTD5 EAX

And others - a Wikipedia page on ESS:

http://en.wikipedia.org/wiki/Electronic_Switching_System

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