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Electronic switching system
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<h2 id="see-also">See also</h2> <ul><li><a href="/facts/List_of_telephone_switches/E44wttl1">List of telephone switches</a></li> <li><a href="/facts/Stored_program_control/FXtRRPlr">Stored program control</a></li> <li><a href="/facts/5ESS_Switching_System/n1xRexFM">5ESS Switching System</a></li></ul> <ul><li> This article incorporates <a href="/facts/Copyright_status_of_works_by_the_federal_government_of_the_United_States/Q1jvr96g">public domain material</a> from <a href="https://web.archive.org/web/20220122224547/https://www.its.bldrdoc.gov/fs-1037/fs-1037c.htm"><i>Federal Standard 1037C</i></a>. <a href="/facts/General_Services_Administration/Np3opv9x">General Services Administration</a>. Archived from <a href="https://www.its.bldrdoc.gov/fs-1037/fs-1037c.htm">the original</a> on 2022-01-22. (in support of <a href="/facts/MIL-STD-188/D5rsvdsW">MIL-STD-188</a>).</li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Duhnkrack, George (April 1960). The Electronic Switching System. Bell Telephone Laboratories, Incorporated. p. 1. OL 24657942M. <a href="https://archive.org/details/TheElectronicSwitchingSystem" target="_blank">https://archive.org/details/TheElectronicSwitchingSystem</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>"Goodbye to the hello girls: Automating the telephone exchange | Science Museum". <a href="https://www.sciencemuseum.org.uk/objects-and-stories/goodbye-hello-girls-automating-telephone-exchange" target="_blank">https://www.sciencemuseum.org.uk/objects-and-stories/goodbye-hello-girls-automating-telephone-exchange</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>Allstot, David J. (2016). "Switched Capacitor Filters". In Maloberti, Franco; Davies, Anthony C. (eds.). A Short History of Circuits and Systems: From Green, Mobile, Pervasive Networking to Big Data Computing (PDF). IEEE Circuits and Systems Society. pp. 105–110. ISBN 9788793609860. Archived (PDF) from the original on 2022-10-09. <a href="9788793609860" target="_blank">9788793609860</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>Floyd, Michael D.; Hillman, Garth D. (8 October 2018) [1st pub. 2000]. "Pulse-Code Modulation Codec-Filters". The Communications Handbook (2nd ed.). CRC Press. pp. 26–1, 26–2, 26–3. ISBN 9781420041163. <a href="9781420041163" target="_blank">9781420041163</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> </ol>