Class 5 telephone switch

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21	INSIGHT MIDWEST HOLDINGS, LLC D/B/A INSIGHT PHONE Add to Reading List Source URL: www.myinsight.com Language: English - Date: 2013-06-28 00:07:14 Time-division multiplexing Telephone exchange Class 5 telephone switch Toll-free telephone number Electronic engineering Electronics Technology T-carrier Multiplexing Class 4 telephone switch Digital Signal 3
22	PDF Document Add to Reading List Source URL: www22.verizon.com Language: English Electronics 5ESS switch Alcatel-Lucent Class 5 telephone switch Class 4 telephone switch Verizon Communications 4ESS switch 33 Thomas Street Interexchange carrier Telephony Bell System Electronic engineering