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Dual-tone multi-frequency signaling
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91	Microsoft Word - LTC Website Advertisement of Supported Services Add to Reading List Source URL: www.ligtel.com Language: English - Date: 2013-11-12 14:36:03 Premium-rate telephone number Telephone 9-1-1 Dual-tone multi-frequency signaling Telephony Technology Electronic engineering
92	USING YOUR CrystalTone ™ Line-Powered Model[removed] Add to Reading List Source URL: www.ultratec.com Language: English - Date: 2012-10-10 12:41:49 Telephone Dial tone Pulse dialing Hook flash Headset Dual-tone multi-frequency signaling Registered jack Trimline telephone GPO telephones Telephony Electronic engineering Rotary dial
93	Signaling vulnerabilities in wiretapping systems∗ Micah Sherr†, Eric Cronin, Sandy Clark‡, and Matt Blaze University of Pennsylvania Contact: Matt Blaze, [removed] 8 November 2005 Add to Reading List Source URL: www.crypto.com Language: English - Date: 2006-03-03 16:49:33 Surveillance Broadcast engineering Dual-tone multi-frequency signaling Telephone tapping Telephone exchange Signaling Blue box Rotary dial In-band signaling Telephony Telecommunications Privacy of telecommunications
94	PDF Document Add to Reading List Source URL: uits.arizona.edu Language: English - Date: 2013-04-19 18:13:04 Caller ID Toll-free telephone number Dial tone Dual-tone multi-frequency signaling Rotary dial North American Numbering Plan Telephone numbering plan Telephony Telephone numbers Area code 671
95	This document will help you understand the features available in the Instant Meeting(SM) Web Moderator. If you have additional questions or need technical assistance, please follow the link to our Contact Information. Th Add to Reading List Source URL: telecom.tamu.edu Language: English - Date: 2011-05-09 10:26:20 Conferencing Rotary dial Menu bar Dual-tone multi-frequency signaling Phreaking Teleconferencing Telephony Conference call CONFER
96	Border Information Service (BIS[removed]BSF5051 Rev. 11 Add to Reading List Source URL: cbsa.gc.ca Language: English - Date: 2011-09-15 10:57:30 Telephone numbers BIS Toll-free telephone number Answering machine Telephone Plain old telephone service Dual-tone multi-frequency signaling Canada Border Services Agency Telephony Electronic engineering Technology
97	2194 new layout user guide Add to Reading List Source URL: telecom.tamu.edu Language: English - Date: 2011-09-30 14:50:50 Pulse dialing Dial tone Dual-tone multi-frequency signaling Plain old telephone service Modular connector GPO telephones Trimline telephone Telephony Rotary dial Telephone
98	USING YOUR CrystalTone ™ Line-Powered Model[removed] Add to Reading List Source URL: www.abouttty.com Language: English - Date: 2012-08-30 10:11:37 Telephone Dial tone Pulse dialing Hook flash Headset Dual-tone multi-frequency signaling Registered jack Trimline telephone GPO telephones Telephony Electronic engineering Rotary dial
99	[removed]/05 2:22 PM Add to Reading List Source URL: www.ultratec.com Language: English - Date: 2012-10-10 12:41:51 Telephone Rotary dial Hook flash Pulse dialing Dial tone Headset Dual-tone multi-frequency signaling TRS connector GPO telephones Telephony Electronic engineering Office equipment
100	Microsoft Word - LTC Website Advertisement of Supported Services Add to Reading List Source URL: www2.ligtel.com Language: English - Date: 2013-11-12 14:36:03 Premium-rate telephone number Telephone 9-1-1 Dual-tone multi-frequency signaling Telephony Technology Electronic engineering

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