MX9305012A - Sistema de comunicaciones dirigido por voz. - Google Patents

Sistema de comunicaciones dirigido por voz.

Info

Publication number
MX9305012A
MX9305012A MX9305012A MX9305012A MX9305012A MX 9305012 A MX9305012 A MX 9305012A MX 9305012 A MX9305012 A MX 9305012A MX 9305012 A MX9305012 A MX 9305012A MX 9305012 A MX9305012 A MX 9305012A
Authority
MX
Mexico
Prior art keywords
voice
communications system
system directed
directed
subscribers
Prior art date
Application number
MX9305012A
Other languages
English (en)
Inventor
Michael M Hou
Sally Bland Muir
Original Assignee
American Telephone & Telegraph
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 American Telephone & Telegraph filed Critical American Telephone & Telegraph
Publication of MX9305012A publication Critical patent/MX9305012A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/38—Graded-service arrangements, i.e. some subscribers prevented from establishing certain connections
    • H04M3/382—Graded-service arrangements, i.e. some subscribers prevented from establishing certain connections using authorisation codes or passwords
    • 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
    • H04M3/42204—Arrangements at the exchange for service or number selection by voice
    • 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
    • H04M3/44—Additional connecting arrangements for providing access to frequently-wanted subscribers, e.g. abbreviated dialling
    • 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
    • H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
    • H04M3/53—Centralised arrangements for recording incoming messages, i.e. mailbox systems
    • H04M3/533—Voice mail systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H04Q3/0029—Provisions for intelligent networking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
    • H04M2201/40—Electronic components, circuits, software, systems or apparatus used in telephone systems using speech recognition
    • 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
    • H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
    • H04M3/51—Centralised call answering arrangements requiring operator intervention, e.g. call or contact centers for telemarketing
    • 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
    • H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
    • H04M3/53—Centralised arrangements for recording incoming messages, i.e. mailbox systems
    • H04M3/537—Arrangements for indicating the presence of a recorded message, whereby the presence information might include a preview or summary of the message
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13515—Indexing scheme relating to selecting arrangements in general and for multiplex systems authentication, authorisation - fraud prevention

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Telephonic Communication Services (AREA)
  • Meter Arrangements (AREA)

Abstract

La presente invención se refiere a que se mejora el uso de identificadores de subscriptor en un sistema de telecomunicaciones dirigido por voz, que emplea reconocimiento automático de locutor, de manera tal que un grupo de subscriptores pueda compartir el mismo identificador.
MX9305012A 1992-08-24 1993-08-18 Sistema de comunicaciones dirigido por voz. MX9305012A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/935,082 US5566229A (en) 1992-08-24 1992-08-24 Voice directed communications system employing shared subscriber identifiers

Publications (1)

Publication Number Publication Date
MX9305012A true MX9305012A (es) 1994-03-31

Family

ID=25466568

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9305012A MX9305012A (es) 1992-08-24 1993-08-18 Sistema de comunicaciones dirigido por voz.

Country Status (6)

Country Link
US (1) US5566229A (es)
EP (1) EP0585004B1 (es)
JP (1) JP2957862B2 (es)
CA (1) CA2099947C (es)
DE (1) DE69333645T2 (es)
MX (1) MX9305012A (es)

Families Citing this family (88)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5717743A (en) * 1992-12-16 1998-02-10 Texas Instruments Incorporated Transparent telephone access system using voice authorization
US6771617B1 (en) 1993-06-17 2004-08-03 Gilat Satellite Networks, Ltd. Frame relay protocol-based multiplex switching scheme for satellite mesh network
US5434850A (en) 1993-06-17 1995-07-18 Skydata Corporation Frame relay protocol-based multiplex switching scheme for satellite
US7106843B1 (en) * 1994-04-19 2006-09-12 T-Netix, Inc. Computer-based method and apparatus for controlling, monitoring, recording and reporting telephone access
US5926533A (en) 1994-04-19 1999-07-20 Opus Telecom, Inc. Computer-based method and apparatus for controlling, monitoring, recording and reporting telephone access
US7248680B1 (en) 1994-04-19 2007-07-24 T-Netix, Inc. Computer-based method and apparatus for controlling, monitoring, recording and reporting telephone access
US5655013A (en) 1994-04-19 1997-08-05 Gainsboro; Jay L. Computer-based method and apparatus for controlling, monitoring, recording and reporting telephone access
US5991301A (en) * 1994-05-05 1999-11-23 Sprint Communications Co. L.P. Broadband telecommunications system
DE69635015T2 (de) * 1995-11-17 2006-03-30 At & T Corp. Automatische vokabularerzeugung für auf einem telekommunikationsnetzwerk basierte sprachgesteuerte wahl
FI2405U1 (fi) * 1995-12-20 1996-04-23 Finland Telecom Oy Järjestelmä erityishinnoiteltujen puheluiden muodostamiseksi televerkossa
DE19616487A1 (de) * 1996-04-25 1997-10-30 Deutsche Telekom Ag Verfahren zum gebührenfreien automatischen Vermitteln und Verbinden
US6064666A (en) * 1996-11-15 2000-05-16 International Business Machines Corporation Cross service common user image association
GB2323497A (en) * 1997-03-18 1998-09-23 Ericsson Telefon Ab L M Call routing by voice commands in a telecommunications network
US6101242A (en) * 1997-03-28 2000-08-08 Bell Atlantic Network Services, Inc. Monitoring for key words with SIV to validate home incarceration
US6178170B1 (en) * 1997-05-13 2001-01-23 Sprint Communications Company, L. P. System and method for transporting a call
AU9781398A (en) 1997-10-01 1999-04-23 Pulsepoint Communications Method for customizing the dialogue of a voice mail system
US6246988B1 (en) 1998-02-10 2001-06-12 Dsc Telecom L.P. Method and apparatus for accessing a data base via speaker/voice verification
WO1999048075A1 (de) * 1998-03-18 1999-09-23 Siemens Aktiengesellschaft Gerät zur wiedergabe von informationen bzw. zur ausführung von funktionen
US6839410B2 (en) 1998-09-01 2005-01-04 At&T Corp. Method and apparatus for setting user communication parameters based on voice identification of users
US6327346B1 (en) * 1998-09-01 2001-12-04 At&T Corp. Method and apparatus for setting user communication parameters based on voice identification of users
DE19841167A1 (de) * 1998-09-09 2000-03-16 Deutsche Telekom Ag Verfahren zur Gebührenabrechnung für die Sprachtelefone an einem Festnetz- oder Mobiltelefonanschluß sowie Kommunikationsnetz
US6631368B1 (en) * 1998-11-13 2003-10-07 Nortel Networks Limited Methods and apparatus for operating on non-text messages
AUPP744798A0 (en) * 1998-12-03 1998-12-24 Alcatel Multiple user telephone accounting
US6370237B1 (en) * 1998-12-29 2002-04-09 Alcatel Usa Sourcing, Lp Voice activated dialing with reduced storage requirements
US6665380B1 (en) 1999-01-11 2003-12-16 T-Netix, Inc. Inmate messaging system and method
US6449496B1 (en) * 1999-02-08 2002-09-10 Qualcomm Incorporated Voice recognition user interface for telephone handsets
US6246757B1 (en) * 1999-02-11 2001-06-12 Lucent Technologies, Inc. Telephone calling card system with abbreviated code destination number capability
US6643622B2 (en) 1999-02-19 2003-11-04 Robert O. Stuart Data retrieval assistance system and method utilizing a speech recognition system and a live operator
US6243684B1 (en) 1999-02-19 2001-06-05 Usada, Inc. Directory assistance system and method utilizing a speech recognition system and a live operator
US6895088B1 (en) 1999-05-21 2005-05-17 Sprint Communications Company L.P. System and method for controlling a call processing system
US6240181B1 (en) 1999-06-18 2001-05-29 Tony Tunstall Remotely controlled speaker phone
DE19946444A1 (de) * 1999-09-28 2001-04-05 Siemens Ag Verfahren und Telekommunikationsnetz zum Ermitteln von Verbindungsgebühren
US6763099B1 (en) 1999-11-05 2004-07-13 T-Netix, Inc. Advanced three way call detection system and method using spread spectrum techniques
US6721415B1 (en) 2000-02-17 2004-04-13 Bellsouth Intellectual Property Corporation Telephone voice messaging system and method using off-hook immediate trigger
KR20030040370A (ko) * 2000-07-21 2003-05-22 텔레맥 코포레이션 무선 장치들에서의 다중 가상 지갑들
FR2814025B1 (fr) * 2000-09-08 2004-08-06 France Telecom Gestion individualisee de communications pour usage collectif d'un terminal telephonique
GB2366934A (en) * 2000-09-13 2002-03-20 Mitel Corp Telephone independent provision of voice recognition
US6668045B1 (en) 2000-10-30 2003-12-23 T-Netix, Inc. Message screening, delivery and billing system
US7400712B2 (en) * 2001-01-18 2008-07-15 Lucent Technologies Inc. Network provided information using text-to-speech and speech recognition and text or speech activated network control sequences for complimentary feature access
US7392191B2 (en) * 2001-03-29 2008-06-24 Intellisist, Inc. Method and device to distinguish between voice conversation and automated speech recognition
US7406421B2 (en) 2001-10-26 2008-07-29 Intellisist Inc. Systems and methods for reviewing informational content in a vehicle
US8000269B1 (en) 2001-07-13 2011-08-16 Securus Technologies, Inc. Call processing with voice over internet protocol transmission
US7899167B1 (en) 2003-08-15 2011-03-01 Securus Technologies, Inc. Centralized call processing
US7418381B2 (en) * 2001-09-07 2008-08-26 Hewlett-Packard Development Company, L.P. Device for automatically translating and presenting voice messages as text messages
US6961412B2 (en) 2001-11-08 2005-11-01 Bellsouth Intellectual Property Corporation Method and system for prepaid communications credit
US6950506B2 (en) 2001-11-08 2005-09-27 Bellsouth Intellectual Property Corporation Method and system for paying prepaid communications credit
US6850605B2 (en) * 2001-11-28 2005-02-01 Ameritech Corporation Method of billing in an abbreviated dialing service
US7215759B2 (en) 2001-12-12 2007-05-08 International Business Machines Corporation Hold queue wait estimations
US7486779B2 (en) 2001-12-12 2009-02-03 International Business Machines Corporation Origin device based callee identification
US7167551B2 (en) * 2001-12-12 2007-01-23 International Business Machines Corporation Intermediary device based callee identification
US7003466B2 (en) 2001-12-12 2006-02-21 International Business Machines Corporation Destination device initiated caller identification
US7103172B2 (en) 2001-12-12 2006-09-05 International Business Machines Corporation Managing caller profiles across multiple hold queues according to authenticated caller identifiers
US7139390B2 (en) 2001-12-12 2006-11-21 International Business Machines Corporation Promoting use of experts to callers waiting in a hold queue
US9088645B2 (en) * 2001-12-12 2015-07-21 International Business Machines Corporation Intermediary device initiated caller identification
US7245716B2 (en) * 2001-12-12 2007-07-17 International Business Machines Corporation Controlling hold queue position adjustment
US7076051B2 (en) 2001-12-12 2006-07-11 International Business Machines Corporation Promoting caller voice browsing in a hold queue
US7072457B2 (en) 2001-12-17 2006-07-04 International Business Machines Corporation Transferring a call to a backup according to call context
US7130405B2 (en) 2001-12-17 2006-10-31 International Business Machines Corporation Identifying a call made or received on behalf of another
US6977998B2 (en) 2001-12-17 2005-12-20 International Business Machines Corporation Destination device billing according to call recipient
US7443970B2 (en) 2001-12-17 2008-10-28 International Business Machines Corporation Logging calls according to call context
US6683941B2 (en) 2001-12-17 2004-01-27 International Business Machines Corporation Controlling advertising output during hold periods
US6996216B2 (en) 2001-12-17 2006-02-07 International Business Machines Corporation Compensating recipients of calls
US6956935B2 (en) * 2001-12-17 2005-10-18 International Business Machines Corporation Origin device billing according to caller
US7155412B2 (en) 2001-12-17 2006-12-26 International Business Machines Corporation Billing for use of a telephony device
US7110514B2 (en) 2001-12-17 2006-09-19 International Business Machines Corporation Identifying a context for a call
US7149296B2 (en) 2001-12-17 2006-12-12 International Business Machines Corporation Providing account usage fraud protection
US6768792B2 (en) 2001-12-17 2004-07-27 International Business Machines Corporation Identifying call parties to a call to an incoming calling party
US7099652B2 (en) 2001-12-17 2006-08-29 International Business Machines Corporation Originating a billed transaction for an origin telephony device
US8249880B2 (en) * 2002-02-14 2012-08-21 Intellisist, Inc. Real-time display of system instructions
US6917672B2 (en) * 2002-02-21 2005-07-12 International Business Machines Corporation Third party regulation of calls based on the caller and callee pair to a call
US7076041B2 (en) 2002-02-21 2006-07-11 International Business Machines Third party regulation of calls through a particular line based on a call context
US7200215B2 (en) * 2002-02-21 2007-04-03 International Business Machines Corporation Time based regulation of access to callees
US7092508B2 (en) * 2002-02-21 2006-08-15 International Business Machines Corporation Rating parties according to party identities
US7095835B2 (en) 2002-02-26 2006-08-22 International Business Machines Corporation Time based regulation of use of a telephone line
US7197132B2 (en) 2002-03-21 2007-03-27 Rockwell Electronic Commerce Technologies, Llc Adaptive transaction guidance
US7860222B1 (en) 2003-11-24 2010-12-28 Securus Technologies, Inc. Systems and methods for acquiring, accessing, and analyzing investigative information
US7916845B2 (en) 2006-04-13 2011-03-29 Securus Technologies, Inc. Unauthorized call activity detection and prevention systems and methods for a Voice over Internet Protocol environment
US9020114B2 (en) 2002-04-29 2015-04-28 Securus Technologies, Inc. Systems and methods for detecting a call anomaly using biometric identification
US9026468B2 (en) 2002-04-29 2015-05-05 Securus Technologies, Inc. System and method for proactively establishing a third-party payment account for services rendered to a resident of a controlled-environment facility
US20040010408A1 (en) * 2002-07-10 2004-01-15 Mani Babu V. Method and system for identifying a caller based on voice recognition
US7333798B2 (en) 2002-08-08 2008-02-19 Value Added Communications, Inc. Telecommunication call management and monitoring system
US8509736B2 (en) 2002-08-08 2013-08-13 Global Tel*Link Corp. Telecommunication call management and monitoring system with voiceprint verification
US7529357B1 (en) 2003-08-15 2009-05-05 Evercom Systems, Inc. Inmate management and call processing systems and methods
US20060062370A1 (en) * 2004-09-22 2006-03-23 International Business Machines Corporation Integrated call completion based upon call transfer rules
US7783021B2 (en) 2005-01-28 2010-08-24 Value-Added Communications, Inc. Digital telecommunications call management and monitoring system
US8126120B2 (en) 2005-12-12 2012-02-28 Tellme Networks, Inc. Providing missed call and message information
US10796392B1 (en) 2007-05-22 2020-10-06 Securus Technologies, Llc Systems and methods for facilitating booking, bonding and release
US9035884B2 (en) * 2012-10-17 2015-05-19 Nuance Communications, Inc. Subscription updates in multiple device language models

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58129682A (ja) * 1982-01-29 1983-08-02 Toshiba Corp 個人照合装置
US4720863A (en) * 1982-11-03 1988-01-19 Itt Defense Communications Method and apparatus for text-independent speaker recognition
US4625081A (en) * 1982-11-30 1986-11-25 Lotito Lawrence A Automated telephone voice service system
US4797929A (en) * 1986-01-03 1989-01-10 Motorola, Inc. Word recognition in a speech recognition system using data reduced word templates
US4910782A (en) * 1986-05-23 1990-03-20 Nec Corporation Speaker verification system
US4959855A (en) * 1986-10-08 1990-09-25 At&T Bell Laboratories Directory assistance call processing and calling customer remote signal monitoring arrangements
GB8702910D0 (en) * 1987-02-10 1987-03-18 British Telecomm Multi-user speech recognition system
US4761808A (en) * 1987-03-18 1988-08-02 Sheldon Howard Time code telephone security access system
DE3819178A1 (de) * 1987-06-04 1988-12-22 Ricoh Kk Spracherkennungsverfahren und -einrichtung
DE3819538C3 (de) * 1987-06-08 1996-08-14 Ricoh Kk Sprachaktivierbare Wähleinrichtung
US4979206A (en) * 1987-07-10 1990-12-18 At&T Bell Laboratories Directory assistance systems
US4827518A (en) * 1987-08-06 1989-05-02 Bell Communications Research, Inc. Speaker verification system using integrated circuit cards
EP0307193B1 (en) * 1987-09-11 1993-11-18 Kabushiki Kaisha Toshiba Telephone apparatus
EP0311414B2 (en) * 1987-10-08 1997-03-12 Nec Corporation Voice controlled dialer having memories for full-digit dialing for any users and abbreviated dialing for authorized users
US4928302A (en) * 1987-11-06 1990-05-22 Ricoh Company, Ltd. Voice actuated dialing apparatus
GB8809898D0 (en) * 1988-04-27 1988-06-02 British Telecomm Voice-operated service
US4896346A (en) * 1988-11-21 1990-01-23 American Telephone And Telegraph Company, At&T Bell Laboratories Password controlled switching system
US5054083A (en) * 1989-05-09 1991-10-01 Texas Instruments Incorporated Voice verification circuit for validating the identity of an unknown person
JPH05284228A (ja) * 1990-04-05 1993-10-29 Texas Instr Inc <Ti> 電話通信サービスへのアクセスを認可する方法
US5127043A (en) * 1990-05-15 1992-06-30 Vcs Industries, Inc. Simultaneous speaker-independent voice recognition and verification over a telephone network
US5125022A (en) * 1990-05-15 1992-06-23 Vcs Industries, Inc. Method for recognizing alphanumeric strings spoken over a telephone network
US5274695A (en) * 1991-01-11 1993-12-28 U.S. Sprint Communications Company Limited Partnership System for verifying the identity of a caller in a telecommunications network
US5315649A (en) * 1992-04-15 1994-05-24 Vcs Industries, Inc. Toll call telephone service center

Also Published As

Publication number Publication date
DE69333645D1 (de) 2004-11-11
JPH0730643A (ja) 1995-01-31
CA2099947C (en) 1997-06-24
US5566229A (en) 1996-10-15
EP0585004A3 (en) 1994-09-07
CA2099947A1 (en) 1994-02-25
JP2957862B2 (ja) 1999-10-06
EP0585004A2 (en) 1994-03-02
EP0585004B1 (en) 2004-10-06
DE69333645T2 (de) 2006-02-23

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Legal Events

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FG Grant or registration
MM Annulment or lapse due to non-payment of fees