WO1998038785A3 - Method and apparatus for conferencing in an expandable telecommunications system - Google Patents

Method and apparatus for conferencing in an expandable telecommunications system Download PDF

Info

Publication number
WO1998038785A3
WO1998038785A3 PCT/US1998/002442 US9802442W WO9838785A3 WO 1998038785 A3 WO1998038785 A3 WO 1998038785A3 US 9802442 W US9802442 W US 9802442W WO 9838785 A3 WO9838785 A3 WO 9838785A3
Authority
WO
WIPO (PCT)
Prior art keywords
conferencing
information
packets
inter
node
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.)
Ceased
Application number
PCT/US1998/002442
Other languages
French (fr)
Other versions
WO1998038785A2 (en
Inventor
Mark P Hebert
Robert H Squires
James F Allen
Michael E Noonan
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.)
Excel Switching Corp
Original Assignee
Excel Switching 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 Excel Switching Corp filed Critical Excel Switching Corp
Priority to JP53767098A priority Critical patent/JP3895390B2/en
Priority to DE69838975T priority patent/DE69838975T2/en
Priority to EP98905009A priority patent/EP0963652B1/en
Priority to CA002282428A priority patent/CA2282428C/en
Priority to AU62736/98A priority patent/AU729779B2/en
Publication of WO1998038785A2 publication Critical patent/WO1998038785A2/en
Publication of WO1998038785A3 publication Critical patent/WO1998038785A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H04M3/562—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities where the conference facilities are distributed
    • 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
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H04M3/567—Multimedia conference systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/64—Hybrid switching systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

A method and apparatus for conferencing two or more calls in an expandable telecommunications system. The system may include a plurality of nodes connected by an inter-nodal network such that the nodes communicate with each other by exchanging variable-length packets of information. At least one node in the system contains digital signal processing circuitry capable of conferencing the voice information from three or more callers interfaced with the system. Packets containing voice information from each conference participant are preferably transmitted via the inter-nodal network to the node having the requisite digital signal processing circuitry. This node performs a conferencing function on that information, packets the resulting conferenced information and transmits those packets via the inter-nodal network to the nodes interfaced with the conference participants.
PCT/US1998/002442 1997-02-28 1998-02-06 Method and apparatus for conferencing in an expandable telecommunications system Ceased WO1998038785A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP53767098A JP3895390B2 (en) 1997-02-28 1998-02-06 Method and apparatus for conducting a conference in an extensible telecommunications system
DE69838975T DE69838975T2 (en) 1997-02-28 1998-02-06 METHOD AND DEVICE TO USE A CONFERENCE CIRCUIT IN A TELECOMMUNICATIONS SYSTEM
EP98905009A EP0963652B1 (en) 1997-02-28 1998-02-06 Method and apparatus for conferencing in an expandable telecommunications system
CA002282428A CA2282428C (en) 1997-02-28 1998-02-06 Method and apparatus for conferencing in an expandable telecommunications system
AU62736/98A AU729779B2 (en) 1997-02-28 1998-02-06 Method and apparatus for conferencing in an expandable telecommunications system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/808,840 US5920546A (en) 1997-02-28 1997-02-28 Method and apparatus for conferencing in an expandable telecommunications system
US08/808,840 1997-02-28

Publications (2)

Publication Number Publication Date
WO1998038785A2 WO1998038785A2 (en) 1998-09-03
WO1998038785A3 true WO1998038785A3 (en) 1998-12-03

Family

ID=25199900

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/002442 Ceased WO1998038785A2 (en) 1997-02-28 1998-02-06 Method and apparatus for conferencing in an expandable telecommunications system

Country Status (9)

Country Link
US (1) US5920546A (en)
EP (1) EP0963652B1 (en)
JP (1) JP3895390B2 (en)
CN (1) CN1086881C (en)
AT (1) ATE383713T1 (en)
AU (1) AU729779B2 (en)
CA (1) CA2282428C (en)
DE (1) DE69838975T2 (en)
WO (1) WO1998038785A2 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6137800A (en) * 1997-05-09 2000-10-24 Sprint Communications Company, L. P. System and method for connecting a call
US6105065A (en) * 1997-10-07 2000-08-15 Nortel Networks Limited Method of displaying changes in call status between nodes within a connection-oriented network
US6463414B1 (en) 1999-04-12 2002-10-08 Conexant Systems, Inc. Conference bridge processing of speech in a packet network environment
US6760422B1 (en) * 1999-04-30 2004-07-06 Lucent Technologies Inc. Apparatus and method for providing conference call service
US6487585B1 (en) * 1999-08-11 2002-11-26 Lucent Technologies Inc. System and method for “Open Mike” network-based communication
US7418506B1 (en) * 1999-11-12 2008-08-26 International Business Machines Corporation Apparatus for connection management and the method therefor
US6744741B1 (en) * 1999-12-15 2004-06-01 Cisco Technology, Inc. System and method for maintaining a plurality of media conferences
US6807167B1 (en) * 2000-03-08 2004-10-19 Lucent Technologies Inc. Line card for supporting circuit and packet switching
US7035229B1 (en) * 2000-04-07 2006-04-25 Lucent Technologies Inc. Method and apparatus for dynamic allocation of conferencing resources in a telecommunications system
DE10062342A1 (en) * 2000-12-14 2002-07-11 Eads Defence & Security Ntwk Method and device for implementing voice conferences
US6687655B2 (en) 2001-02-22 2004-02-03 Telefonaktiebolaget Lm Ericsson (Publ) Maintenance of sliding window aggregated state using combination of soft state and explicit release principles
WO2003040855A2 (en) * 2001-10-24 2003-05-15 The Fantastic Corporation Methods for multicasting content
US20030200336A1 (en) * 2002-02-15 2003-10-23 Suparna Pal Apparatus and method for the delivery of multiple sources of media content
EP1377003A1 (en) * 2002-06-05 2004-01-02 EADS TELECOM Deutschland GmbH Method and device for setting up voice conferences
CN100463476C (en) * 2002-09-18 2009-02-18 中兴通讯股份有限公司 The Method of Using Digital Signal Processor to Realize Teleconference
US7522517B1 (en) * 2003-11-18 2009-04-21 Sprint Communications Company Lp. Communication system with multipoint circuit bonding
US8073124B2 (en) * 2006-07-11 2011-12-06 Siemens Enterprise Communications, Inc. System and method to identify and associate call legs in session initiation protocol back to back user agents
US8005895B2 (en) 2009-02-27 2011-08-23 Microsoft Corporation Distributed routing of conferences using conference identifier
CN108551601A (en) * 2018-05-31 2018-09-18 广东公信智能会议股份有限公司 A kind of microphone connection structure of conference system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0716533A2 (en) * 1994-12-07 1996-06-12 International Business Machines Corporation A gateway system and method
US5544163A (en) * 1994-03-08 1996-08-06 Excel, Inc. Expandable telecommunications system
WO1996036157A1 (en) * 1995-05-12 1996-11-14 Protel, Inc. Automated audio teleconferencing having reconfiguration features

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569041A (en) * 1983-03-17 1986-02-04 Nec Corporation Integrated circuit/packet switching system
US5276678A (en) * 1990-06-18 1994-01-04 Intelect, Inc. Distributed switching and telephone conferencing system
US5321744A (en) * 1992-09-29 1994-06-14 Excel, Inc. Programmable telecommunication switch for personal computer
US5349579A (en) * 1993-01-05 1994-09-20 Excel, Inc. Telecommunication switch with programmable communications services
US5659542A (en) * 1995-03-03 1997-08-19 Intecom, Inc. System and method for signalling and call processing for private and hybrid communications systems including multimedia systems
US5590127A (en) * 1995-05-26 1996-12-31 Lucent Technologies Inc. Multimedia conference call providing adjustable bandwidth for individual communication terminals

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5544163A (en) * 1994-03-08 1996-08-06 Excel, Inc. Expandable telecommunications system
EP0716533A2 (en) * 1994-12-07 1996-06-12 International Business Machines Corporation A gateway system and method
WO1996036157A1 (en) * 1995-05-12 1996-11-14 Protel, Inc. Automated audio teleconferencing having reconfiguration features

Also Published As

Publication number Publication date
DE69838975D1 (en) 2008-02-21
EP0963652B1 (en) 2008-01-09
WO1998038785A2 (en) 1998-09-03
JP2001513297A (en) 2001-08-28
CA2282428C (en) 2007-01-09
AU729779B2 (en) 2001-02-08
CN1192097A (en) 1998-09-02
AU6273698A (en) 1998-09-18
EP0963652A2 (en) 1999-12-15
US5920546A (en) 1999-07-06
ATE383713T1 (en) 2008-01-15
CA2282428A1 (en) 1998-09-03
CN1086881C (en) 2002-06-26
DE69838975T2 (en) 2009-01-08
JP3895390B2 (en) 2007-03-22

Similar Documents

Publication Publication Date Title
CA2282428A1 (en) Method and apparatus for conferencing in an expandable telecommunications system
US7428223B2 (en) Method for background noise reduction and performance improvement in voice conferencing over packetized networks
CA2141727C (en) Conference bridge for packetized speech-signal networks
US5555017A (en) Seamless multimedia conferencing system using an enhanced multipoint control unit
ATE435539T1 (en) TELEPHONE CONFERENCE SYSTEM
DK1201082T3 (en) Video conferencing method and system
DE60130734D1 (en) DIGITAL RECORDING IN AN IP PLATFORM WITH DISTRIBUTED MEDIATION
NO169209C (en) PROCEDURE AND SYSTEM FOR ESTABLISHING CONFERENCE CONNECTION.
CA2220292A1 (en) Routing system and method for a teleconferencing system
ATE229716T1 (en) EXPANDABLE COMMUNICATION SYSTEM
CA2219559A1 (en) Teleconferencing and facsimile communications system and method
CA2264912A1 (en) Method and system for establishing and maintaining user-controlled anonymous communications
CA2312325A1 (en) Method and system for media connectivity over a packet-based network
AU3696999A (en) Communication method and suitable device for chat rooms
JPH01132243A (en) ISDN loop network system
RU2272364C2 (en) Method and device for conducting speech conferences
EP0433782B1 (en) Conference network
KR100528742B1 (en) Multi-party Conference Call Device of Exchange System
WO2000021251A3 (en) Methods and arrangement for establishing communication channels in a dtm network
SU1166341A1 (en) Concentrator for long-distance communication with selective ringing to subscribers
SE9500266D0 (en) Teleconferencing system for telecommunication systems, method of establishing teleconferencing and teleconferencing equipment for use in a teleconferencing system
JPS62221251A (en) Packet conference system
JPH04354246A (en) Telephone conference equipment
JPS59216360A (en) Telephone conference trunk
JPH0414914A (en) Conference communication system

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AL AU BA BB BG BR CA CN CU CZ EE GE GW HU ID IL IS JP KP KR LC LK LR LT LV MG MK MN MX NO NZ PL RO SG SI SK SL TR TT UA UZ VN YU

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
AK Designated states

Kind code of ref document: A3

Designated state(s): AL AU BA BB BG BR CA CN CU CZ EE GE GW HU ID IL IS JP KP KR LC LK LR LT LV MG MK MN MX NO NZ PL RO SG SI SK SL TR TT UA UZ VN YU

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 62736/98

Country of ref document: AU

ENP Entry into the national phase

Ref document number: 2282428

Country of ref document: CA

Ref country code: CA

Ref document number: 2282428

Kind code of ref document: A

Format of ref document f/p: F

ENP Entry into the national phase

Ref country code: JP

Ref document number: 1998 537670

Kind code of ref document: A

Format of ref document f/p: F

WWE Wipo information: entry into national phase

Ref document number: 1998905009

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1998905009

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 62736/98

Country of ref document: AU

WWG Wipo information: grant in national office

Ref document number: 1998905009

Country of ref document: EP