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Class 4 telephone switch
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21	HILLS TELEPHONE COMPANY, INC. GARRETSON, SOUTH DAKOTA TARIFF NO. 1 2nd Revised Title Page Cancels 1st Title Page Add to Reading List Source URL: puc.sd.gov Language: English - Date: 2012-08-07 15:34:49 Local access and transport area Electronic engineering Local exchange carrier South Dakota Class 4 telephone switch
22	NTCOxxx cONTRIBUTION: XXXX [removed]working Group: Network Working Group title: Wireless CLEC Roaming issues Add to Reading List Source URL: www.crtc.gc.ca Language: English - Date: 2000-11-03 09:50:50 Telephony Electronic engineering Competitive local exchange carrier Interexchange carrier Roaming Telus Class 4 telephone switch Call detail record Telephone numbers Telecommunications companies Technology Mobile technology
23	DOC Document Add to Reading List Source URL: www.crtc.gc.ca Language: English - Date: 2001-11-29 14:36:12 Telephone numbers Telecommunications Competitive local exchange carrier Toll-free telephone number Caller ID Incumbent local exchange carrier Local exchange carrier Signalling System No. 7 Class 4 telephone switch Telephony Electronic engineering Telecommunications companies
24	NTCOxxx NTCO265.doc cONTRIBUTION: NTCOxxx working Group: Network Working Group Add to Reading List Source URL: www.crtc.gc.ca Language: English - Date: 2003-09-17 16:20:07 Toll-free telephone number Class 4 telephone switch 5ESS switch Economy of Canada Electronic engineering Canada S&P/TSX 60 Index Telus Child Exploitation Tracking System
25	TC SYSTEMS, INC. ACCESS SERVICES STATE OF SOUTH DAKOTA ORIGINAL PAGE 1 ISSUED: SEPTEMBER 11, 2012 Add to Reading List Source URL: puc.sd.gov Language: English - Date: 2013-05-15 10:03:34 Interexchange carrier Local exchange carrier Access network Incumbent local exchange carrier Telephone exchange Signalling System No. 7 Class 4 telephone switch Feature group Telephony Electronic engineering Telecommunications companies
26	Contribution: NTCO0480 Date: October 10, 2008 Working Group: Network Working Group Title: Northwestel’ Response to Network Choking Practice Questions Distribution: NTWG Interested Parties Reference: NTTF024, Network Ch Add to Reading List Source URL: www.crtc.gc.ca Language: English - Date: 2009-01-26 09:15:22 Gapping Canada Communication English language Northwestel Call gapping Class 4 telephone switch
27	CISC NTCO 0aaa CISC NTCO 0aaa working Group: Network Task: File Name: NTCO0aaa_OZZ-TNS CctCode.doc Add to Reading List Source URL: www.crtc.gc.ca Language: English - Date: 1999-06-30 13:21:26 Electronic engineering Identifiers Interexchange carrier North American Numbering Plan Telephone exchange Premium-rate telephone number Class 4 telephone switch Telephone number SMS Telephone numbers Technology Telephony
28	cONTRIBUTION: nTCOxxx.doc [removed]working Group: Network Working Group title: Voip issue - IXC Traffic Issues Addressed: This contribution addresses the issue of IXC interconnection to VoIP LEC Add to Reading List Source URL: www.crtc.gc.ca Language: English - Date: 2000-04-25 10:54:18 Videotelephony Voice over IP Interexchange carrier Electronics Class 4 telephone switch Technology Electronic engineering Telephony Broadband
29	Interconnection Agreement between IXC and Company - Network Planning SCHEDULE 3, Part 1 NTCO 034 CRTC InDUSTRY Steering Committee (CISC) working Group: Network title: Schedule 3 - Network Planning Add to Reading List Source URL: www.crtc.gc.ca Language: English - Date: 1999-07-23 14:37:42 Telephone numbers Network access Competitive local exchange carrier Class 4 telephone switch Telephone exchange Telcordia LERG Routing Guide Technology Interexchange carrier CLLI code Telephony Telecommunications companies Electronic engineering
30	CRTC Interconnection Steering Committee (CISC) NTCO047a Add to Reading List Source URL: www.crtc.gc.ca Language: English - Date: 2000-01-04 09:37:10 Electronic engineering Incumbent local exchange carrier Class 4 telephone switch Toll Vidéotron Interexchange carrier Technology Electronics Telecommunications companies Telephony Competitive local exchange carrier

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