CA2225271A1 - Telephone exchange apparatus - Google Patents

Telephone exchange apparatus

Info

Publication number
CA2225271A1
CA2225271A1 CA002225271A CA2225271A CA2225271A1 CA 2225271 A1 CA2225271 A1 CA 2225271A1 CA 002225271 A CA002225271 A CA 002225271A CA 2225271 A CA2225271 A CA 2225271A CA 2225271 A1 CA2225271 A1 CA 2225271A1
Authority
CA
Canada
Prior art keywords
line
pbx
identification information
extension
emergency call
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002225271A
Other languages
French (fr)
Other versions
CA2225271C (en
Inventor
Toshiaki Tanaka
Nobuhiro Masaki
Shuji Fujitsuka
Takashi Aoki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Publication of CA2225271A1 publication Critical patent/CA2225271A1/en
Application granted granted Critical
Publication of CA2225271C publication Critical patent/CA2225271C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42314—Systems providing special services or facilities to subscribers in private branch exchanges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625—Arrangements in the private branch exchange
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/57—Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2242/00—Special services or facilities
    • H04M2242/04—Special services or facilities for emergency applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2242/00—Special services or facilities
    • H04M2242/22—Automatic class or number identification arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42025—Calling or Called party identification service
    • H04M3/42034—Calling party identification service
    • H04M3/42042—Notifying the called party of information on the calling party
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13031—Pulse code modulation, PCM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13034—A/D conversion, code compression/expansion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1309—Apparatus individually associated with a subscriber line, line circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13091—CLI, identification of calling line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13096—Digital apparatus individually associated with a subscriber line, digital line circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13103—Memory
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13106—Microprocessor, CPU
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13107—Control equipment for a part of the connection, distributed control, co-processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13175—Graphical user interface [GUI], WWW interface, visual indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13204—Protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13216—Code signals, frame structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1322—PBX
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13292—Time division multiplexing, TDM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13299—Bus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13334—Key telephone systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1334—Configuration within the switch
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1337—Operator, emergency services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13395—Permanent channel, leased line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13405—Dual frequency signaling, DTMF

Abstract

The emergency call such as Enhanced 911 call or the like is also originated through an exchange such as PBX (Private Branch Exchange). In this case, the identification information such as the extension number of the extension telephone terminal connected to the PBX should be transmitted to a network corresponding to the emergency call. For the extension telephone terminal, it is necessary to unhook or to capture an arbitrary line by the line key, before inputting the dial data "911". Independent of the capture of arbitrary line, the PBX
searches a vacant line connected to the network corresponding to the emergency call, captures the vacant line, transmits the identification information such as the extension number, and switches over and connects the extension telephone terminal from the line captured by the terminal to the vacant line. The identification information such as the extension number is notified, not by the DTMF (Dual Tone Multi-frequency) signal expressing data corresponding to the number of dial key, but by using a MF (Multi-frequency) signal expressing more data.
CA002225271A 1996-12-20 1997-12-19 Telephone exchange apparatus Expired - Fee Related CA2225271C (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP8-341213 1996-12-20
JP34121396 1996-12-20
JP9-026311 1997-02-10
JP2631197 1997-02-10
JP7733797 1997-03-28
JP9-077337 1997-03-28

Publications (2)

Publication Number Publication Date
CA2225271A1 true CA2225271A1 (en) 1998-06-20
CA2225271C CA2225271C (en) 2004-08-17

Family

ID=27285352

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002225271A Expired - Fee Related CA2225271C (en) 1996-12-20 1997-12-19 Telephone exchange apparatus

Country Status (3)

Country Link
US (2) US6243442B1 (en)
CA (1) CA2225271C (en)
GB (1) GB2320849B (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6415019B1 (en) * 2000-08-21 2002-07-02 Ameritech Corporation Method of providing 911 service to a private branch exchange
US6950499B2 (en) 2002-10-23 2005-09-27 Sbc Properties, L.P. Method of providing 911 service to a private branch exchange
GB2388945B (en) * 2000-10-27 2004-12-15 Fulcit New Zealand Ltd Method and apparatus for generating an alert message
US7099439B2 (en) 2001-02-26 2006-08-29 Classco Inc. Loop test apparatus and method
US6744857B2 (en) 2001-03-23 2004-06-01 Siemens Information And Communication Networks, Inc. Methods and apparatus for transmitting over a private network accurate emergency location identification numbers (elins) from behind a multi-line telephone system (mlts) utilizing port equipment numbers
US6757359B2 (en) 2001-03-23 2004-06-29 Siemens Information And Communication Networks, Inc. Methods and apparatus for transmitting accurate emergency location identification numbers (ELINs) from behind a multi-line telephone system (MLTS) utilizing port equipment numbers
US6724860B2 (en) 2001-03-23 2004-04-20 Siemens Information And Communication Networks, Inc. Methods and apparatus for transmitting accurate emergency location identification numbers (ELINs) from behind a multi-line telephone system (MLTS) after an emergency caller disconnects
US7003081B2 (en) * 2001-03-23 2006-02-21 Siemens Communications, Inc. Priority based methods and apparatus for transmitting accurate emergency location identification numbers (ELINs) from behind a multi-line telephone system (MLTS)
US6587546B2 (en) * 2001-03-23 2003-07-01 Siemens Information And Communication Networks, Inc. Methods and apparatus for dialing an emergency telephone number from a teleworking client remotely coupled to a PBX
US6678356B2 (en) 2001-03-23 2004-01-13 Siemens Information And Communication Networks, Inc. Systems for dialing an emergency telephone number from a teleworking client remotely coupled to a PBX
US7103153B2 (en) * 2001-03-23 2006-09-05 Siemens Communications, Inc. Methods and apparatus for transmitting accurate emergency location identification numbers (ELINs) after an emergency caller disconnects
US6678357B2 (en) 2001-09-26 2004-01-13 Siemens Information And Communication Networks, Inc. Internet protocol (IP) emergency connections (ITEC) telephony
JP2003169128A (en) * 2001-12-03 2003-06-13 Matsushita Electric Ind Co Ltd Telephone set and private branch exchange
US7418087B2 (en) * 2002-01-04 2008-08-26 Classco Inc. Telephone network messaging
US7012544B2 (en) * 2003-04-09 2006-03-14 Cube Investments Limited Address and/or alarm indicator sign
FR2866187B1 (en) * 2004-02-11 2006-05-26 Cit Alcatel METHOD OF TRANSMITTING TO A CALL CENTER, THROUGH HETEROGENEOUS COMMUNICATIONS NETWORKS, LOCATION DATA OF A CALLING TERMINAL
US7680252B2 (en) 2004-11-08 2010-03-16 Aztek Engineering, Inc. Switch proxy for providing emergency stand alone service in remote access systems
US8380158B2 (en) * 2004-12-06 2013-02-19 Edward A. McCulloch System and method for vital communications connectivity
US7953210B2 (en) 2005-06-27 2011-05-31 Aztek Engineering, Inc. Switch proxy for providing emergency stand-alone service in remote access systems
US20060293574A1 (en) * 2005-06-28 2006-12-28 Norris Mark A Separating oximeter signal components based on color
US7894579B1 (en) * 2006-01-12 2011-02-22 AT&T Intellectual Propert II, L.P. Managing emergency services on a per-telephone-number basis
US20080273669A1 (en) * 2007-05-04 2008-11-06 Kris Allen Emergency Number Integrated Information Assimilation Device
US8315359B2 (en) * 2009-06-30 2012-11-20 Alcatel Lucent Method and system for enabling emergency calling from nomadic VoIP extension telephones

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4243845A (en) * 1979-01-22 1981-01-06 International Telephone And Telegraph Corporation Repertory telephone dialing apparatus
US4408102A (en) * 1981-04-27 1983-10-04 Lumpkin Steven B Two-wire exchange telephone system
JPH06101863B2 (en) 1986-06-30 1994-12-12 株式会社東芝 Private branch exchange
JPS63164790A (en) 1986-12-26 1988-07-08 Nec Corp Key telephone set
US5239570A (en) * 1990-07-25 1993-08-24 Teltone Corporation 9-1-1 Switched access system
US5235630A (en) * 1991-04-17 1993-08-10 Telident, Incorporated Emergency call station identification system and method
US5339351A (en) * 1992-06-02 1994-08-16 Hoskinson John D Emergency response system
US5311569A (en) * 1992-06-05 1994-05-10 At&T Bell Laboratories Line-based public safety answering point
GB2278517A (en) * 1993-05-26 1994-11-30 Politel Limited Prioritising telephone apparatus
AU1187495A (en) * 1993-11-29 1995-06-13 Greater Harris County 9-1-1 Emergency Network Integrated data collection and transmission for emergency calls
JPH0832703A (en) 1994-07-20 1996-02-02 Fujitsu General Ltd 119 sender easy retrieval system
CA2157242C (en) * 1994-08-31 1998-11-17 Tetsuo Kobayashi Call selecting apparatus for preferentially connecting emergency message calls
US5602901A (en) * 1994-12-22 1997-02-11 Motorola, Inc. Specialized call routing method and apparatus for a cellular communication system

Also Published As

Publication number Publication date
US6731721B2 (en) 2004-05-04
GB9726930D0 (en) 1998-02-18
GB2320849A (en) 1998-07-01
US6243442B1 (en) 2001-06-05
US20010028702A1 (en) 2001-10-11
CA2225271C (en) 2004-08-17
GB2320849B (en) 2000-05-10

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed