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Class 4 telephone switch
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71	IOiDOKA TELEPHONE COMPANY KADOKA, SOUTH DAKOTA TARWF NO. 1 2nd Revised Title Page Cancels First Revised Title Page Add to Reading List Source URL: www.puc.sd.gov Language: English - Date: 2012-08-06 15:38:03 Telephone exchange South Dakota United States Technology Local exchange carrier Kadoka South Dakota Class 4 telephone switch
72	Neutral Tandem-South Dakota, LLC South Dakota Tariff No. I ACCESS SERVICES TARIFF Add to Reading List Source URL: www.puc.sd.gov Language: English - Date: 2013-09-10 14:48:14 Internet hosting Class 4 telephone switch Local access and transport area Telecommunications Act AT&T Class 5 telephone switch Electronic engineering Computing Internet Telephony Inteliquent
73	Thomas Burns[removed] – Direct[removed] – Facsimile [removed] Add to Reading List Source URL: www.windom-mn.com Language: English - Date: 2011-07-28 12:23:18 Electronic engineering Class 4 telephone switch Interexchange carrier Telephone exchange Communication Telcordia LERG Routing Guide Technology North American Numbering Plan Federal Communications Commission Telecommunications companies Telephone numbers Telephony
74	Microsoft Word[removed]OCN 105D Network Change Notice.doc Add to Reading List Source URL: www.windom-mn.com Language: English - Date: 2011-07-28 12:21:58 Telephone numbers Class 4 telephone switch CenturyLink Telephone exchange North American Numbering Plan Qwest Class 5 telephone switch Communications in the United States Western United States Telephony
75	NetCarrier Telecom, Inc. Delaware Tariff No. 3 Original Title Page ACCESS SERVICES TARIFF Add to Reading List Source URL: www.netcarrier.com Language: English - Date: 2013-10-30 09:54:27 Electronics Feature group Toll-free telephone number Interexchange carrier Demarcation point Access network InterExchange Telephone exchange Class 4 telephone switch Telephony Electronic engineering Local loop
76	STD Equivalent List The United Kingdom numbering plan has been evolving and changing over the last sixty years. This list is an attempt to summarise the first twenty-five years of Subscriber Trunk Dialling, STD. It was Add to Reading List Source URL: www.samhallas.co.uk Language: English - Date: 2013-09-19 05:56:02 Subscriber trunk dialling Lisburn telephone exchange code Telephone numbering plan Telephone exchange Class 4 telephone switch General Post Office Technology Communication Telephone numbers Telephony Telephone numbers in the United Kingdom
77	Phone System Feared Vulnerable To Wider Disruptions of Service Add to Reading List Source URL: www.billhamel.net Language: English - Date: 2013-09-15 09:52:32 Alcatel-Lucent Electronic engineering Telephone exchange Bell Labs Telephone Bell System Computer network Class 4 telephone switch 5ESS switch Technology AT&T Telephony
78	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
79	STD Equivalent List Add to Reading List Source URL: www.samhallas.co.uk Language: English - Date: 2013-09-19 05:56:02 Subscriber trunk dialling Lisburn telephone exchange code Telephone numbering plan Telephone exchange Class 4 telephone switch General Post Office Technology Communication Telephone numbers Telephony Telephone numbers in the United Kingdom
80	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