Timeline
of Telephone Switch Development
Telephone
Switch Timeline
A timeline that shows the development of telephone switching systems
up to present day.
Vintage
Electro-Mechanical
Telephone Switching Systems
Step
by Step (Strowger) Switching Systems
Details on the Step by Step (aka Strowger) switching system and its
variants.
Western
Electric Panel
Switching Systems
Details on the Western Electric Panel switching system.
Western
Electric Crossbar
Switching Systems
Details on the Western Electric Crossbar switching system and its variants.
North
Electric Crossbar
Switching Systems
Details on the North Electric Crossbar switching system and its variants.
Other
Vintage Switching Systems of Note
Details on other vintage switching systems of note that are not mentioned
above.
Historic
Number 4 Crossbar (#4XB) List
Descriptions and a detailed list of locations where AT&T Long Lines (Bell System) used the
Number 4 Crossbar (#4XB) Tandem system in the North American toll
network from 1940s until the 1980s.
Modern
Electronic & Digital
Telephone Switching Systems
Overview
& Background of Modern (Electronic & Digital Switching) Systems
An overview, background and history on the different types of electronic (analog) and digital telephone switching systems that
are used on the North American telephone network.
Automatic
Electric Modern Switching Systems
Details on Automatic Electric electronic & digital switching systems.
Northern
Telecom (Nortel) Modern Switching Systems
Details on Northern Telecom (now Nortel) electronic & digital switching
systems.
TRW-Vidar
Switching Systems
Details on TRW-Vidar switching systems.
Western
Electric Modern Switching Systems
Details on Western Electric modern switching systems
Other
Modern Switching Systems of Note
Details on other modern switching systems of note that are not mentioned
above.
The
Next Generation:
Softswitch Telephone Switching Systems
Softswitch
Telephone Switching Systems
An overview on "softswitches", the next generation telephone
switching system that use Internet routing technologies to switch
and route telephone calls.
Other Telephone
Switch Systems websites (off-site)
Central Office Online
A website dedicated to central office systems, both past and present.
List
of Telephone Switches
Wikipedia article that lists common and not-so common telephone
switches of today and yesterday.
Copyright 2006 Diamond Mine Online - Fredericksburg, VA USA
Page last modified February 26, 2006
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