WO1997050277A3 - Method and architecture for providing telephony between data networks and pstn - Google Patents

Method and architecture for providing telephony between data networks and pstn Download PDF

Info

Publication number
WO1997050277A3
WO1997050277A3 PCT/US1997/010491 US9710491W WO9750277A3 WO 1997050277 A3 WO1997050277 A3 WO 1997050277A3 US 9710491 W US9710491 W US 9710491W WO 9750277 A3 WO9750277 A3 WO 9750277A3
Authority
WO
WIPO (PCT)
Prior art keywords
data
pstn
architecture
data networks
providing telephony
Prior art date
Application number
PCT/US1997/010491
Other languages
French (fr)
Other versions
WO1997050277A2 (en
WO1997050277A9 (en
Inventor
Mark G Schnell
Andrew L Aczel
Richard Loveland
Original Assignee
Northern Telecom Ltd
Mark G Schnell
Andrew L Aczel
Richard Loveland
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 Northern Telecom Ltd, Mark G Schnell, Andrew L Aczel, Richard Loveland filed Critical Northern Telecom Ltd
Priority to US09/202,898 priority Critical patent/US6735168B1/en
Publication of WO1997050277A2 publication Critical patent/WO1997050277A2/en
Publication of WO1997050277A3 publication Critical patent/WO1997050277A3/en
Publication of WO1997050277A9 publication Critical patent/WO1997050277A9/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q11/00Selecting arrangements for multiplex systems
    • H04Q11/04Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0478Provisions for broadband connections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q3/00Selecting arrangements
    • H04Q3/0016Arrangements providing connection between exchanges
    • H04Q3/0029Provisions for intelligent networking
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J2203/00Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0057Operations, administration and maintenance [OAM]
    • H04J2203/0058Network management, e.g. Intelligent nets
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J2203/00Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0057Operations, administration and maintenance [OAM]
    • H04J2203/006Fault tolerance and recovery
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/54Store-and-forward switching systems 
    • H04L12/56Packet switching systems
    • H04L12/5601Transfer mode dependent, e.g. ATM
    • H04L2012/5619Network Node Interface, e.g. tandem connections, transit switching
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/54Store-and-forward switching systems 
    • H04L12/56Packet switching systems
    • H04L12/5601Transfer mode dependent, e.g. ATM
    • H04L2012/5625Operations, administration and maintenance [OAM]
    • H04L2012/5626Network management, e.g. Intelligent nets
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/54Store-and-forward switching systems 
    • H04L12/56Packet switching systems
    • H04L12/5601Transfer mode dependent, e.g. ATM
    • H04L2012/5625Operations, administration and maintenance [OAM]
    • H04L2012/5627Fault tolerance and recovery
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/54Store-and-forward switching systems 
    • H04L12/56Packet switching systems
    • H04L12/5601Transfer mode dependent, e.g. ATM
    • H04L2012/5638Services, e.g. multimedia, GOS, QOS
    • H04L2012/5646Cell characteristics, e.g. loss, delay, jitter, sequence integrity
    • H04L2012/5652Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly

Abstract

A method consistent with the present invention enables communicating telephonic data regarding a call over a data network. The method includes the steps of receiving data units from a first data network over redundant communication paths. Next, it is determined whether the received data units have an error. One of the received data units is then selected from one of the redundant communication paths determined not to have an error, and the selected data unit is forwarded to a second data network.
PCT/US1997/010491 1996-06-25 1997-06-25 Method and architecture for providing telephony between data networks and pstn WO1997050277A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US09/202,898 US6735168B1 (en) 1996-06-25 1997-06-25 Method and architecture for providing telephony between data networks and PSTN

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2043296P 1996-06-25 1996-06-25
US60/020,432 1996-06-25

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US09/202,898 A-371-Of-International US6735168B1 (en) 1996-06-25 1997-06-25 Method and architecture for providing telephony between data networks and PSTN
US10/819,003 Continuation US20040228333A1 (en) 1996-06-25 2004-04-06 Method and architecture for providing telephony between data networks and PSTN

Publications (3)

Publication Number Publication Date
WO1997050277A2 WO1997050277A2 (en) 1997-12-31
WO1997050277A3 true WO1997050277A3 (en) 1998-02-26
WO1997050277A9 WO1997050277A9 (en) 1998-05-22

Family

ID=21798602

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/010491 WO1997050277A2 (en) 1996-06-25 1997-06-25 Method and architecture for providing telephony between data networks and pstn

Country Status (1)

Country Link
WO (1) WO1997050277A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6442169B1 (en) 1998-11-20 2002-08-27 Level 3 Communications, Inc. System and method for bypassing data from egress facilities

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6614781B1 (en) 1998-11-20 2003-09-02 Level 3 Communications, Inc. Voice over data telecommunications network architecture
US7324635B2 (en) 2000-05-04 2008-01-29 Telemaze Llc Branch calling and caller ID based call routing telephone features
JP2002077212A (en) 2000-09-01 2002-03-15 Mitsubishi Electric Corp Optical multi-branch communication system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4331577A1 (en) * 1993-09-16 1995-03-23 Siemens Ag Method and circuit arrangement for transmitting message cells via redundant virtual path pairs of an ATM communication network

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4331577A1 (en) * 1993-09-16 1995-03-23 Siemens Ag Method and circuit arrangement for transmitting message cells via redundant virtual path pairs of an ATM communication network

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
L.M. OLSEN: ""Death of a phone System" An Internet Viewpoint On Computer Telephony Integration", PROCEEDINGS THE FIRST ANNUAL CONFERENCE ON EMERGING TECHNOLOGIES AND APPLICATIONS IN COMMUNICATIONS, 7 May 1996 (1996-05-07), OREGON, US, pages 131 - 133, XP002045553 *
ZSEHONG TSAI ET AL: "PERFORMANCE ANALYSIS OF TWO ECHO CONTROL DESIGNS IN ATM NETWORKS", IEEE / ACM TRANSACTIONS ON NETWORKING, vol. 2, no. 1, 1 February 1994 (1994-02-01), pages 30 - 39, XP000446088 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6442169B1 (en) 1998-11-20 2002-08-27 Level 3 Communications, Inc. System and method for bypassing data from egress facilities

Also Published As

Publication number Publication date
WO1997050277A2 (en) 1997-12-31

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