CA2299438A1 - Atm-based distributed virtual tandem switching system - Google Patents
Atm-based distributed virtual tandem switching system Download PDFInfo
- Publication number
- CA2299438A1 CA2299438A1 CA002299438A CA2299438A CA2299438A1 CA 2299438 A1 CA2299438 A1 CA 2299438A1 CA 002299438 A CA002299438 A CA 002299438A CA 2299438 A CA2299438 A CA 2299438A CA 2299438 A1 CA2299438 A1 CA 2299438A1
- Authority
- CA
- Canada
- Prior art keywords
- atm
- distributed virtual
- interworking function
- signaling
- switching system
- 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
Links
- 230000011664 signaling Effects 0.000 abstract 4
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/30—Peripheral units, e.g. input or output ports
- H04L49/3081—ATM peripheral units, e.g. policing, insertion or extraction
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/06—Arrangements for interconnection between switching centres using auxiliary connections for control or supervision, e.g. where the auxiliary connection is a signalling system number 7 link
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
- H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
- H04Q11/0478—Provisions for broadband connections
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0016—Arrangements providing connection between exchanges
- H04Q3/0025—Provisions for signalling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
- H04J2203/0001—Provisions 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
- H04J2203/0046—User Network Interface
- H04J2203/0048—Network termination, e.g. NT1, NT2, PBX
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
- H04J2203/0001—Provisions 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
- H04J2203/0064—Admission Control
- H04J2203/0066—Signalling, e.g. protocols, reference model
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
- H04J2203/0001—Provisions 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
- H04J2203/0073—Services, e.g. multimedia, GOS, QOS
- H04J2203/0078—Support of N-ISDN
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5614—User Network Interface
- H04L2012/5618—Bridges, gateways [GW] or interworking units [IWU]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5625—Operations, administration and maintenance [OAM]
- H04L2012/5626—Network management, e.g. Intelligent nets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5629—Admission control
- H04L2012/563—Signalling, e.g. protocols, reference model
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5638—Services, e.g. multimedia, GOS, QOS
- H04L2012/5646—Cell characteristics, e.g. loss, delay, jitter, sequence integrity
- H04L2012/5652—Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly
- H04L2012/5653—Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly using the ATM adaptation layer [AAL]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5638—Services, e.g. multimedia, GOS, QOS
- H04L2012/5663—Support of N-ISDN
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5638—Services, e.g. multimedia, GOS, QOS
- H04L2012/5665—Interaction of ATM with other protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5638—Services, e.g. multimedia, GOS, QOS
- H04L2012/5671—Support of voice
Abstract
An Asynchronous Transfer Mode (ATM)-based distributed virtual tandem switching system is provided in which a network of ATM-based devices is combined to create a distributed virtual tandem switch. The system includes an ATM
switching network that dynamically sets up individual switched virtual connections. The system also includes a trunk interworking function (T-IWF) device and a centralized control and signaling interworking function (CS-IWF) device. The trunk interworking function device converts end office voice trunks from TDM channels to ATM cells by employing a structured circuit emulation service. The centralized control and signaling interworking function device performs call control functions and interfaces narrowband signaling and broadband signaling for call processing and control within the ATM switching network. Consequently, the ATM based distributed virtual tandem switching system replaces a standard tandem switch in the PSTN.
switching network that dynamically sets up individual switched virtual connections. The system also includes a trunk interworking function (T-IWF) device and a centralized control and signaling interworking function (CS-IWF) device. The trunk interworking function device converts end office voice trunks from TDM channels to ATM cells by employing a structured circuit emulation service. The centralized control and signaling interworking function device performs call control functions and interfaces narrowband signaling and broadband signaling for call processing and control within the ATM switching network. Consequently, the ATM based distributed virtual tandem switching system replaces a standard tandem switch in the PSTN.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US8364098P | 1998-04-30 | 1998-04-30 | |
US60/083,640 | 1998-04-30 | ||
US09/287,092 | 1999-04-07 | ||
US09/287,092 US6169735B1 (en) | 1998-04-30 | 1999-04-07 | ATM-based distributed virtual tandem switching system |
PCT/US1999/006555 WO1999057851A1 (en) | 1998-04-30 | 1999-04-30 | Atm-based distributed virtual tandem switching system |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2299438A1 true CA2299438A1 (en) | 1999-11-11 |
CA2299438C CA2299438C (en) | 2003-09-30 |
Family
ID=26769535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002299438A Expired - Fee Related CA2299438C (en) | 1998-04-30 | 1999-04-30 | Atm-based distributed virtual tandem switching system |
Country Status (6)
Country | Link |
---|---|
US (9) | US6169735B1 (en) |
EP (1) | EP1086550A4 (en) |
AU (1) | AU3858799A (en) |
CA (1) | CA2299438C (en) |
TW (1) | TW454398B (en) |
WO (1) | WO1999057851A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7136378B2 (en) | 1998-04-30 | 2006-11-14 | Sbc Technology Resources, Inc. | Secure ATM-based distributed virtual tandem switching system and method |
Families Citing this family (163)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9603582D0 (en) * | 1996-02-20 | 1996-04-17 | Hewlett Packard Co | Method of accessing service resource items that are for use in a telecommunications system |
US6041109A (en) | 1995-12-29 | 2000-03-21 | Mci Communications Corporation | Telecommunications system having separate switch intelligence and switch fabric |
US6154445A (en) | 1996-04-18 | 2000-11-28 | Bell Atlantic Network Services, Inc. | Telephony communication via varied redundant networks |
US6069890A (en) | 1996-06-26 | 2000-05-30 | Bell Atlantic Network Services, Inc. | Internet telephone service |
US6370149B1 (en) * | 1998-07-20 | 2002-04-09 | Ameritech Corporation | Telecommunication system, method and subscriber unit for use therein |
US7187686B1 (en) * | 1996-11-01 | 2007-03-06 | Sbc Properties, B.P. | Telecommunication system, method and subscriber unit for use therein |
FI101666B (en) * | 1996-11-29 | 1998-07-31 | Nokia Multimedia Network Termi | Implementation of delay-critical services in a cable television system |
US6078582A (en) | 1996-12-18 | 2000-06-20 | Bell Atlantic Network Services, Inc. | Internet long distance telephone service |
SE511581C2 (en) | 1996-12-20 | 1999-10-25 | Ericsson Telefon Ab L M | System and method for ATM connection of a telephone connection |
US6137869A (en) | 1997-09-16 | 2000-10-24 | Bell Atlantic Network Services, Inc. | Network session management |
US6574216B1 (en) | 1997-03-11 | 2003-06-03 | Verizon Services Corp. | Packet data network voice call quality monitoring |
US6292479B1 (en) | 1997-03-19 | 2001-09-18 | Bell Atlantic Network Services, Inc. | Transport of caller identification information through diverse communication networks |
US6870827B1 (en) | 1997-03-19 | 2005-03-22 | Verizon Services Corp. | Voice call alternative routing through PSTN and internet networks |
US5949763A (en) * | 1997-07-17 | 1999-09-07 | Ameritech Corporation | Method and apparatus for providing broadband access conferencing services |
JPH1168782A (en) * | 1997-08-26 | 1999-03-09 | Fujitsu Ltd | Signaling processing unit and its method |
US6418461B1 (en) | 1997-10-06 | 2002-07-09 | Mci Communications Corporation | Intelligent call switching node in an intelligent distributed network architecture |
US6141356A (en) | 1997-11-10 | 2000-10-31 | Ameritech Corporation | System and method for distributing voice and data information over wireless and wireline networks |
US6169735B1 (en) | 1998-04-30 | 2001-01-02 | Sbc Technology Resources, Inc. | ATM-based distributed virtual tandem switching system |
US6404765B1 (en) * | 1998-05-06 | 2002-06-11 | Nortel Networks Limited | Method and apparatus for transporting DS-X signals through a packet network |
US7194078B2 (en) * | 1998-05-28 | 2007-03-20 | Siemens Communications, Inc. | Network redirection control routing |
US6332023B1 (en) * | 1998-06-04 | 2001-12-18 | Mci Communications Corporation | Method of and system for providing services in a communications network |
US6229803B1 (en) * | 1998-08-05 | 2001-05-08 | Sprint Communications Co. L.P. | Telecommunications provider agent |
GB9817411D0 (en) * | 1998-08-10 | 1998-10-07 | Northern Telecom Ltd | Telecommunications system |
US6490284B1 (en) * | 1998-09-08 | 2002-12-03 | Telefonaktiebolaget Lm Ericcson | Use of CIC to identify calls when using ISUP in conjunction with AAL type 2 signaling protocol |
US6430698B1 (en) * | 1998-10-05 | 2002-08-06 | Nortel Networks Limited | Virtual distributed home agent protocol |
US6757285B1 (en) * | 1998-12-17 | 2004-06-29 | Nortel Networks Limited | Method and apparatus for completing telephone calls between subnetworks |
GB2343582B (en) * | 1998-11-06 | 2000-10-11 | Marconi Comm Ltd | Telecommunications system |
US6614781B1 (en) * | 1998-11-20 | 2003-09-02 | Level 3 Communications, Inc. | Voice over data telecommunications network architecture |
US6714217B2 (en) | 1998-12-18 | 2004-03-30 | Sprint Communication Company, L.P. | System and method for providing a graphical user interface to, for building, and/or for monitoring a telecommunication network |
US6888803B1 (en) * | 1998-12-22 | 2005-05-03 | Nortel Networks Limited | System, method, and computer program product for connectivity of wireless base station to PSTN via an IP data network |
US6597701B1 (en) * | 1998-12-22 | 2003-07-22 | Sprint Communications Company L.P. | System and method for configuring a local service control point with a call processor in an architecture |
US6982950B1 (en) * | 1998-12-22 | 2006-01-03 | Sprint Communications Company L.P. | System and method for connecting a call in a tandem architecture |
US6496512B1 (en) * | 1998-12-22 | 2002-12-17 | Sprint Communications Company L.P. | System and method for connecting calls with a time division multiplex matrix |
US6888833B1 (en) * | 1998-12-22 | 2005-05-03 | Sprint Communications Company L.P. | System and method for processing call signaling |
US6885661B1 (en) * | 1998-12-30 | 2005-04-26 | Nortel Networks Limited | Private branch exchange built using an ATM Network |
US6735191B1 (en) | 1998-12-30 | 2004-05-11 | At&T Corp. | Method and apparatus for transporting TDM voice traffic over an ATM network |
US6804229B2 (en) | 1998-12-30 | 2004-10-12 | Nortel Networks Limited | Multiple node network architecture |
US6788703B2 (en) | 1998-12-30 | 2004-09-07 | Nortel Networks Limited | DS0 on ATM, mapping and handling |
US6658008B1 (en) * | 1998-12-30 | 2003-12-02 | At&T Corp. | Method and apparatus for removal of dataless frames when transporting private line traffic over an ATM network |
US6778538B2 (en) | 1998-12-30 | 2004-08-17 | Nortel Networks Limited | Virtual junctors |
US6768736B1 (en) | 1998-12-30 | 2004-07-27 | Nortel Networks Limited | Using an ATM switch to grow the capacity of a switching stage |
US6728272B1 (en) * | 1998-12-30 | 2004-04-27 | At&T Corp. | Method and apparatus for transporting private line traffic over an ATM network |
AU3248799A (en) * | 1999-01-12 | 2000-08-01 | Nokia Networks Oy | A method for managing physical resources of a radio access network |
US6366584B1 (en) * | 1999-02-06 | 2002-04-02 | Triton Network Systems, Inc. | Commercial network based on point to point radios |
US7079530B1 (en) | 1999-02-25 | 2006-07-18 | Sprint Communications Company L.P. | System and method for caching toll free number information |
US7436851B1 (en) * | 1999-03-29 | 2008-10-14 | Lucent Technologies Inc. | Destination call routing apparatus and method |
US6335936B1 (en) * | 1999-04-22 | 2002-01-01 | Ameritech Corporation | Wide area communication networking |
US6285671B1 (en) * | 1999-04-22 | 2001-09-04 | Ameritech Corporation | Method and system for providing facsimile service over a digital subscriber line |
US7103068B1 (en) * | 1999-05-04 | 2006-09-05 | Sprint Communication Company L.P. | System and method for configuring bandwidth transmission rates for call connections |
US6895088B1 (en) | 1999-05-21 | 2005-05-17 | Sprint Communications Company L.P. | System and method for controlling a call processing system |
US7058716B1 (en) * | 1999-07-02 | 2006-06-06 | Covad Communications Group, Inc. | Automatic configuration and provisioning of virtual circuits for initial installation of high bandwidth connections |
US6775266B1 (en) * | 1999-07-14 | 2004-08-10 | Telefonaktiebolaget Lm Ericsson | Narrowband applications using ATM switching and transport |
US7263092B2 (en) * | 1999-07-14 | 2007-08-28 | Ericsson Inc. | Combining narrowband applications with broadband transport |
US7212518B2 (en) * | 1999-07-14 | 2007-05-01 | Ericsson Inc. | Combining narrowband applications with broadband transport |
US7075920B2 (en) * | 1999-07-14 | 2006-07-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Combining narrowband applications with broadband transport |
US7457280B2 (en) * | 1999-07-14 | 2008-11-25 | Telefonaktiebolaget L M Ericsson (Publ) | Combining narrowband applications with broadband transport |
US7212519B2 (en) * | 1999-07-14 | 2007-05-01 | Ericsson Inc. | Combining narrowband applications with broadband transport |
US6882652B1 (en) * | 1999-08-06 | 2005-04-19 | Tellabs Operations, Inc. | Private lines traversing a packet network and re-arrangement of channels among packet network connections |
US6282191B1 (en) * | 1999-08-10 | 2001-08-28 | General Datacomm, Inc. | Methods and apparatus for transporting narrowband (voice) traffic over a broadband (ATM) network |
US7012922B1 (en) * | 1999-08-17 | 2006-03-14 | Nortel Networks Limited | Packet communications system and method |
US7170856B1 (en) | 1999-08-19 | 2007-01-30 | Nokia Inc. | Jitter buffer for a circuit emulation service over an internet protocol network |
US6870837B2 (en) * | 1999-08-19 | 2005-03-22 | Nokia Corporation | Circuit emulation service over an internet protocol network |
US6993476B1 (en) * | 1999-08-26 | 2006-01-31 | International Business Machines Corporation | System and method for incorporating semantic characteristics into the format-driven syntactic document transcoding framework |
US7142530B1 (en) * | 1999-08-27 | 2006-11-28 | Bellsouth Intellectual Property Corp. | Methods and systems of network management |
US7272649B1 (en) | 1999-09-30 | 2007-09-18 | Cisco Technology, Inc. | Automatic hardware failure detection and recovery for distributed max sessions server |
US6987756B1 (en) | 1999-10-07 | 2006-01-17 | Nortel Networks Limited | Multi-mode endpoint in a communication network system and methods thereof |
GB9923866D0 (en) * | 1999-10-08 | 1999-12-08 | Hewlett Packard Co | Correlation of signalling messages |
FI19992246A (en) * | 1999-10-18 | 2001-04-19 | Nokia Networks Oy | Arrangements for interconnection of communication networks |
SE517492C2 (en) * | 1999-10-18 | 2002-06-11 | Ericsson Telefon Ab L M | Method and apparatus for connecting a connection in a telecommunications system |
US6816497B1 (en) * | 1999-11-05 | 2004-11-09 | Sprint Communications Company, L.P. | System and method for processing a call |
US7002915B1 (en) * | 1999-11-22 | 2006-02-21 | Alcatel Canada Inc. | Automated mass calling control for public switched telephone networks employing a packet based virtual tandem |
US6704314B1 (en) * | 1999-12-15 | 2004-03-09 | Sprint Communications Company, L.P. | Method and apparatus to control cell substitution |
US6714560B1 (en) * | 1999-12-17 | 2004-03-30 | Nortel Networks Limited | SS7 signalling transport over ATM |
US6459708B1 (en) * | 1999-12-21 | 2002-10-01 | Toledo Communications, Inc. | Apparatus and method for providing T1/E1 telecommunications trunks over IP networks |
US6388991B1 (en) * | 1999-12-23 | 2002-05-14 | West Communications International Inc. | Method and system for interfacing between circuit network switches and ATM edge switches |
US6826184B1 (en) * | 1999-12-29 | 2004-11-30 | Nortel Networks Limited | Method and system for multi-service cut-through switching through a connection-oriented network |
US6535991B1 (en) | 2000-01-12 | 2003-03-18 | Worldcom, Inc. | Method and apparatus for providing reliable communications in an intelligent network |
JP3508669B2 (en) * | 2000-01-18 | 2004-03-22 | 日本電気株式会社 | ATM connection bandwidth control method |
US6785377B1 (en) * | 2000-01-19 | 2004-08-31 | Sprint Communications Company L.P. | Data calls using both constant bit rate and variable bit rate connections |
AU2001231040A1 (en) * | 2000-01-20 | 2001-07-31 | Mci Worldcom, Inc. | Intelligent policy server system and method for bandwidth control in an atm network |
US6343065B1 (en) * | 2000-01-20 | 2002-01-29 | Sbc Technology Resources, Inc. | System and method of measurement-based adaptive caching of virtual connections |
JP2001237855A (en) * | 2000-02-25 | 2001-08-31 | Fujitsu Ltd | Switching system and its routing method |
US6389130B1 (en) * | 2000-03-30 | 2002-05-14 | Oresis Communications | Public switched telephone network call routing using dyamic asynchronous mode transfer bearer voice trunking |
US7324635B2 (en) | 2000-05-04 | 2008-01-29 | Telemaze Llc | Branch calling and caller ID based call routing telephone features |
US6934280B1 (en) | 2000-05-04 | 2005-08-23 | Nokia, Inc. | Multiple services emulation over a single network service |
GB0016351D0 (en) * | 2000-07-03 | 2000-08-23 | Nokia Networks Oy | Interaction in a communication system |
US7088720B1 (en) | 2000-08-07 | 2006-08-08 | Sbc Technology Resources, Inc. | Multiservice use of network connection capability under user-to-network interface signaling |
US7307993B2 (en) * | 2000-08-08 | 2007-12-11 | At&T Labs, Inc. | Controller based call control for ATM SVC signaling |
JP2002101103A (en) * | 2000-09-20 | 2002-04-05 | Nec Saitama Ltd | Base station modulator and demodulator, and atm cell transmission/reception method |
FI20002124A (en) * | 2000-09-27 | 2002-03-28 | Nokia Corp | Changing channel properties |
US6963583B1 (en) * | 2000-09-29 | 2005-11-08 | Telefonaktiebolaget Lm Ericsson (Publ) | Generic call server and method of converting signaling protocols |
US7515597B1 (en) * | 2000-10-03 | 2009-04-07 | Eads Telecom North America Inc. | Distributed switching platform and method of operating the same |
US7436839B1 (en) * | 2001-10-09 | 2008-10-14 | At&T Delaware Intellectual Property, Inc. | Systems and methods for providing services through an integrated digital network |
US7675900B1 (en) * | 2000-10-09 | 2010-03-09 | Genband Inc. | System and method for interfacing between signaling protocols |
GB2397195B (en) * | 2000-10-30 | 2004-09-22 | Siemens Plc | End-to-end voice over ip streams for telephone calls established via legacy switching systems |
US7000011B1 (en) * | 2000-11-06 | 2006-02-14 | Hewlett-Packard Development Company, Lp. | Designing interconnect fabrics |
EP1278341B1 (en) * | 2001-01-26 | 2005-04-13 | Nec Corporation | Method and system for controlling a communication network and a router used in the network |
US7123708B1 (en) * | 2001-03-01 | 2006-10-17 | Nt Investors, Inc. | Neutral tandem telecommunications network providing transiting, terminating, and advanced traffic routing services to public and private carrier networks |
EP1368123B1 (en) * | 2001-03-09 | 2006-09-20 | Gen-Probe Incorporated | Penetrable cap |
US20020131416A1 (en) * | 2001-03-19 | 2002-09-19 | Stefan Pudas | Dynamic set-up of ATM bearers for AAL2 connections |
WO2002075475A2 (en) * | 2001-03-20 | 2002-09-26 | T.D. Soft Communications Ltd. | Method and system for communicating voice over ip access networks |
US7020144B2 (en) * | 2001-04-03 | 2006-03-28 | Lucent Technologies Inc. | High capacity Multi-AAL system for VTOA Gateway |
US7016314B2 (en) * | 2001-04-03 | 2006-03-21 | Lucent Technologies Inc. | Method and apparatus for transferring ATM services |
US6526046B1 (en) * | 2001-04-24 | 2003-02-25 | General Bandwidth Inc. | System and method for communicating telecommunication information using asynchronous transfer mode |
AU2002309882A1 (en) * | 2001-05-16 | 2002-11-25 | Nact Telecommunications, Inc. | System, apparatus and method for dynamically mapping virtual signaling system 7 circuit identification codes for use between voip gateways on ip-based networks |
US20020181487A1 (en) * | 2001-05-31 | 2002-12-05 | J.W. Wung | Automation of provisioning of private line packet network connections |
US7050414B2 (en) * | 2001-06-22 | 2006-05-23 | Lucent Technologies Inc. | Method and apparatus for setting up a call over a packet-based transport network |
KR100377688B1 (en) * | 2001-07-04 | 2003-03-29 | 엘지전자 주식회사 | Call Setup Method Using SIP-T Overlap Signaling |
SE519612C2 (en) * | 2001-07-09 | 2003-03-18 | Ericsson Telefon Ab L M | Telecommunication system with ATM core networks and at least one Media Gateway that handles TDM interfaces |
US7136386B2 (en) * | 2001-07-19 | 2006-11-14 | Sbc Technology Resources, Inc. | Virtual private network over asynchronous transfer mode |
US7187678B2 (en) * | 2001-08-13 | 2007-03-06 | At&T Labs, Inc. | Authentication for use of high speed network resources |
US20030035443A1 (en) * | 2001-08-17 | 2003-02-20 | Adtran, Inc. | Integrated access device-resident, robbed in-band time slot mechanism for effecting contemporaneous management of remote digital communication units |
EP1294166A1 (en) * | 2001-09-14 | 2003-03-19 | Siemens Aktiengesellschaft | Signaling method for the payload transmission over circuit and packet switched networks |
US20030109245A1 (en) * | 2001-11-05 | 2003-06-12 | Mccalmont Patti L | Routing of emergency calls based on geographic location of originating telephone end office |
KR100403216B1 (en) * | 2001-12-22 | 2003-10-23 | 엘지전자 주식회사 | Inter-Working Architecture And Method Between The PNNI Network And B-ISUP Network |
US20030145294A1 (en) * | 2002-01-25 | 2003-07-31 | Ward Julie Ann | Verifying interconnect fabric designs |
US9009004B2 (en) * | 2002-01-31 | 2015-04-14 | Hewlett-Packasrd Development Comany, L.P. | Generating interconnect fabric requirements |
US7529249B1 (en) | 2002-03-22 | 2009-05-05 | Cisco Technology, Inc | Voice and dial service level agreement enforcement on universal gateway |
US7590740B1 (en) * | 2002-03-22 | 2009-09-15 | Cisco Technology, Inc. | Expediting port release in distributed networks |
US7237026B1 (en) | 2002-03-22 | 2007-06-26 | Cisco Technology, Inc. | Sharing gateway resources across multi-pop networks |
US7376742B1 (en) | 2002-03-22 | 2008-05-20 | Cisco Technology, Inc. | Resource and AAA service device |
CN100463539C (en) * | 2002-04-22 | 2009-02-18 | 中兴通讯股份有限公司 | Delayed connection method for program-controlled exchange equipment |
US7177305B2 (en) * | 2002-04-25 | 2007-02-13 | Lucent Technologies Inc. | Inter-switch telecommunications system for interconnecting packet-capable Time Division Multiplexed switches with non-packet-capable Time Division Multiplexed switches via an asynchronous transfer mode network |
GB2389023B (en) * | 2002-05-20 | 2004-04-28 | Sun Microsystems Inc | Computer system, method and network |
US6961335B1 (en) * | 2002-05-31 | 2005-11-01 | Verizon Communications Inc. | Multi-layer ring architecture for fiber-to-the-home telco carrier network |
US7453870B2 (en) * | 2002-06-12 | 2008-11-18 | Intel Corporation | Backplane for switch fabric |
US7701953B2 (en) * | 2002-11-04 | 2010-04-20 | At&T Intellectual Property I, L.P. | Client server SVC-based DSL service |
US7602788B2 (en) * | 2002-11-04 | 2009-10-13 | At&T Intellectual Property I, L.P. | Peer to peer SVC-based DSL service |
US20040125810A1 (en) * | 2002-12-26 | 2004-07-01 | Flynn Eric P. | Method and apparatus for enabling POTS telephony functionality over a network |
US20040125936A1 (en) * | 2002-12-26 | 2004-07-01 | Flynn Eric P | Method and apparatus to optimize bandwidth for compressed voice data |
US7382785B2 (en) * | 2003-02-21 | 2008-06-03 | At&T Knowledge Ventures, L.P. | Extended virtual user-to-network interface with ATM network |
US7535894B2 (en) * | 2003-02-26 | 2009-05-19 | Nokia Corporation | System and method for a communication network |
US7743021B2 (en) * | 2003-04-15 | 2010-06-22 | At&T Intellectual Property, I,L.P. | Methods, systems, and computer program products for data processing control |
US7707170B2 (en) * | 2003-04-15 | 2010-04-27 | At&T Intellectual Property, I, L.P. | Methods, systems, and computer program products for implementing data transformation processes |
US20040240385A1 (en) * | 2003-04-15 | 2004-12-02 | Boggs Ronald L. | Real-time monitoring, analysis, and forecasting of trunk group usage |
US7725434B2 (en) * | 2003-04-15 | 2010-05-25 | At&T Intellectual Property, I, L.P. | Methods, systems, and computer program products for automatic creation of data tables and elements |
US7747571B2 (en) * | 2003-04-15 | 2010-06-29 | At&T Intellectual Property, I,L.P. | Methods, systems, and computer program products for implementing logical and physical data models |
US8203967B2 (en) * | 2003-04-15 | 2012-06-19 | At&T Intellectual Property I, L.P. | Methods, systems, and computer program products for implementing a standardized interpretive engine |
US8055753B2 (en) * | 2003-06-11 | 2011-11-08 | International Business Machines Corporation | Peer to peer job monitoring and control in grid computing systems |
US7573869B2 (en) * | 2003-09-18 | 2009-08-11 | Alcatel-Lucent Usa Inc. | Use of a single broadband SS7 signaling gateway for multiple wireless access gateways |
US7346066B2 (en) * | 2003-09-19 | 2008-03-18 | Lucent Technologies Inc. | Integrated broadband and narrowband SS7 signaling gateway with M3UA and point code mapping |
US7593388B1 (en) * | 2003-09-30 | 2009-09-22 | Nortel Networks Limited | Convertor shared by multiple virtual private networks |
US8051177B1 (en) | 2003-09-30 | 2011-11-01 | Genband Us Llc | Media proxy having interface to multiple virtual private networks |
WO2005101397A1 (en) * | 2004-04-15 | 2005-10-27 | Koninklijke Philips Electronics N.V. | Optical master substrate and method to manufacture high-density relief structure |
US20050265359A1 (en) * | 2004-05-13 | 2005-12-01 | Drew Julie W | Optimizing switch port assignments |
US7463584B2 (en) * | 2004-08-03 | 2008-12-09 | Nortel Networks Limited | System and method for hub and spoke virtual private network |
JP2008515348A (en) * | 2004-09-29 | 2008-05-08 | ソーナス ネットワークス, インコーポレイテッド | Logical trunk group for packet-based networks |
KR100751101B1 (en) * | 2004-11-05 | 2007-08-22 | 주식회사 팬택앤큐리텔 | IP management system and method for a mobile phone |
ATE545997T1 (en) | 2004-12-17 | 2012-03-15 | Tekelec Us | METHODS, SYSTEMS AND COMPUTER PROGRAM PRODUCTS FOR SUPPORTING DATABASE ACCESS IN AN INTERNET PROTOCOL MULTIMEDIA SUBSYSTEM (IMS) NETWORK ENVIRONMENT |
US7881280B2 (en) * | 2004-12-30 | 2011-02-01 | Motorola Mobilty, Inc. | Method and apparatus to facilitate a non-fully meshed communications system gateway interface |
US7207112B2 (en) * | 2005-01-12 | 2007-04-24 | Wen-Ya Yeh | Combination hairdressing scissor assembly |
US8213414B2 (en) * | 2005-02-18 | 2012-07-03 | Genband Us Llc | Methods, systems, and computer program products for providing time division multiplexed (TDM) terminating service in a packet network |
CN100499582C (en) * | 2005-10-14 | 2009-06-10 | 华为技术有限公司 | Data transmission method and system |
GB2431826A (en) * | 2005-10-28 | 2007-05-02 | Agilent Technologies Inc | Correlating signalling and bearer circuits in a mobile communication network |
US7715307B2 (en) * | 2005-12-13 | 2010-05-11 | Alcatel Lucent | Communication connection control systems and methods |
US8571043B2 (en) | 2006-03-16 | 2013-10-29 | Sonus Networks, Inc. | Using a single point code to represent multiple switching devices |
US7853004B2 (en) * | 2006-03-16 | 2010-12-14 | Sonus Networks, Inc. | Active switch replacement using a single point code |
US8149725B2 (en) * | 2006-07-31 | 2012-04-03 | Tekelec | Methods, systems, and computer program products for a hierarchical, redundant OAM&P architecture for use in an IP multimedia subsystem (IMS) network |
US8396510B1 (en) | 2007-10-12 | 2013-03-12 | Sprint Communications Company L.P. | Method and system for establishing communication services |
US9172726B2 (en) * | 2008-09-30 | 2015-10-27 | Alcatel Lucent | Impairment reduction for tandem VoIP calls |
US8238538B2 (en) | 2009-05-28 | 2012-08-07 | Comcast Cable Communications, Llc | Stateful home phone service |
ES2793953T3 (en) * | 2009-07-29 | 2020-11-17 | Icu Medical Inc | Fluid transfer procedures |
US8781086B2 (en) * | 2012-06-26 | 2014-07-15 | Adc Dsl Systems, Inc. | System and method for circuit emulation |
Family Cites Families (86)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05122240A (en) * | 1991-10-24 | 1993-05-18 | Fujitsu Ltd | Vpi vci allocation system in atm transmission |
US5260978A (en) | 1992-10-30 | 1993-11-09 | Bell Communications Research, Inc. | Synchronous residual time stamp for timing recovery in a broadband network |
US5365524A (en) | 1992-11-06 | 1994-11-15 | At&T Bell Laboratories | Establishing telecommunications call paths between clustered switching entities |
US5363369A (en) | 1993-03-31 | 1994-11-08 | At&T Bell Laboratories | System for inter packet community communication |
US5438565A (en) | 1993-03-31 | 1995-08-01 | At&T Corp. | Packet switch to provide code division, multiple access cellular service |
US5539884A (en) * | 1993-05-20 | 1996-07-23 | Bell Communications Research, Inc. | Intelligent broadband communication system and method employing fast-packet switches |
JP2518515B2 (en) * | 1993-05-27 | 1996-07-24 | 日本電気株式会社 | High-speed connection setup packet switch |
US5392402A (en) | 1993-06-29 | 1995-02-21 | Bell Communications Research, Inc. | Broadband intelligent telecommunications network and method employing a resource system to support network services |
US5428607A (en) | 1993-12-20 | 1995-06-27 | At&T Corp. | Intra-switch communications in narrow band ATM networks |
DE4343720C1 (en) | 1993-12-21 | 1995-06-14 | Siemens Ag | Method for transmitting digital signals in an ATM communication network |
US5434854A (en) | 1993-12-27 | 1995-07-18 | At&T Corp. | System for communicating digital cellular data between a cell site and a switching system or another cell site |
US5434853A (en) | 1993-12-27 | 1995-07-18 | At&T Corp. | System and method for providing soft handoff of a cellular mobile-to-mobile call |
US5429607A (en) * | 1994-03-09 | 1995-07-04 | I-Flow Corporation | Elastomeric syringe actuation device |
US5991301A (en) | 1994-05-05 | 1999-11-23 | Sprint Communications Co. L.P. | Broadband telecommunications system |
US6181703B1 (en) * | 1995-09-08 | 2001-01-30 | Sprint Communications Company L. P. | System for managing telecommunications |
RU2138919C1 (en) * | 1994-05-05 | 1999-09-27 | Спринт Комьюникейшнз Компани Л.П. | Method, system and device to control telephone communication |
US6031840A (en) * | 1995-12-07 | 2000-02-29 | Sprint Communications Co. L.P. | Telecommunications system |
US5703876A (en) | 1994-05-05 | 1997-12-30 | Christie; Joseph Michael | ATM transport system |
US5459722A (en) | 1994-06-30 | 1995-10-17 | At&T Ipm Corp. | Asynchronous transfer mode (ATM) transport of voice-band signals |
US5619500A (en) | 1994-09-01 | 1997-04-08 | Digital Link Corporation | ATM network interface |
EP0702474A1 (en) | 1994-09-19 | 1996-03-20 | International Business Machines Corporation | Dynamically structured data transfer mechanism in an ATM netowrk |
US5490140A (en) * | 1994-09-30 | 1996-02-06 | International Business Machines Corporation | System and method for providing ATM support for frame relay DTEs with a terminal adapter |
US5659544A (en) * | 1994-10-17 | 1997-08-19 | Lucent Technologies Inc. | Method and system for distributed control in wireless cellular and personal communication systems |
US5513174A (en) | 1994-12-07 | 1996-04-30 | At&T Corp. | Telecommunication system with detection and control of packet collisions |
US5568475A (en) | 1994-12-21 | 1996-10-22 | Lucent Technologies Inc. | ATM network architecture employing an out-of-band signaling network |
US5483527A (en) | 1994-12-21 | 1996-01-09 | At&T Corp. | Terminal adapter for interfacing an ATM network with a STM network |
US5845211A (en) | 1995-01-13 | 1998-12-01 | Bell South Corporation | Wireless digital network |
JP2921424B2 (en) * | 1995-01-13 | 1999-07-19 | 日本電気株式会社 | ATM electronic exchange network system and electronic exchange used in the system |
DE19502414C1 (en) | 1995-01-26 | 1996-02-08 | Siemens Ag | Rapid through switching of virtual connections in ATM communication system |
US5623491A (en) | 1995-03-21 | 1997-04-22 | Dsc Communications Corporation | Device for adapting narrowband voice traffic of a local access network to allow transmission over a broadband asynchronous transfer mode network |
US5796836A (en) * | 1995-04-17 | 1998-08-18 | Secure Computing Corporation | Scalable key agile cryptography |
US5757783A (en) | 1995-06-15 | 1998-05-26 | Lucent Technologies Inc. | Method and apparatus for routing ATM cells in an AD-ATM LAN |
US5684800A (en) * | 1995-11-15 | 1997-11-04 | Cabletron Systems, Inc. | Method for establishing restricted broadcast groups in a switched network |
GB9603398D0 (en) * | 1996-02-17 | 1996-04-17 | Plessey Telecomm | Broadband/narrowband interworking |
US5867571A (en) | 1996-02-23 | 1999-02-02 | Lucent Technologies Inc. | Method and arrangement for establishing call connections in a telecommunications network using a virtual transport server |
US5710769A (en) | 1996-02-29 | 1998-01-20 | Lucent Technologies Inc. | Merging the functions of switching and cross connect in telecommunications networks |
WO1997033412A1 (en) * | 1996-03-06 | 1997-09-12 | Bear Creek Technologies, Inc. | System for interconnecting standard telephony communications equipment to internet protocol networks |
JP3600353B2 (en) * | 1996-03-15 | 2004-12-15 | 富士通株式会社 | Voice information service device connected to ATM network |
US5825750A (en) * | 1996-03-29 | 1998-10-20 | Motorola | Method and apparatus for maintaining security in a packetized data communications network |
US5926464A (en) * | 1996-04-04 | 1999-07-20 | Lucent Technologies Inc. | Customer telecommunication interface device with built-in network features |
US6125113A (en) * | 1996-04-18 | 2000-09-26 | Bell Atlantic Network Services, Inc. | Internet telephone service |
US6069890A (en) * | 1996-06-26 | 2000-05-30 | Bell Atlantic Network Services, Inc. | Internet telephone service |
US6122255A (en) * | 1996-04-18 | 2000-09-19 | Bell Atlantic Network Services, Inc. | Internet telephone service with mediation |
US6101183A (en) * | 1996-06-21 | 2000-08-08 | Lucent Technologies Inc. | Method and apparatus for crossconnecting transmission members in the outside distribution plant of a telecommunications network |
US5781320A (en) * | 1996-08-23 | 1998-07-14 | Lucent Technologies Inc. | Fiber access architecture for use in telecommunications networks |
US5883893A (en) | 1996-09-10 | 1999-03-16 | Cisco Technology, Inc. | ATM voice transport protocol |
US6122275A (en) * | 1996-09-26 | 2000-09-19 | Lucent Technologies Inc. | Real-time processing for virtual circuits in packet switching |
US6195333B1 (en) | 1996-10-28 | 2001-02-27 | Fujitsu Network Communications, Inc. | Unframed isochronous shaping method to reduce delay and delay variation in a CBR transmission system |
JPH10135964A (en) * | 1996-10-28 | 1998-05-22 | Fujitsu Ltd | Network system and frame relay exchange |
US5889773A (en) * | 1996-11-27 | 1999-03-30 | Alcatel Usa Sourcing, L.P. | Method and apparatus for placing time division multiplexed telephony traffic into an asynchronous transfer mode format |
US6064653A (en) * | 1997-01-07 | 2000-05-16 | Bell Atlantic Network Services, Inc. | Internetwork gateway to gateway alternative communication |
US5914956A (en) | 1997-02-03 | 1999-06-22 | Williams; Joel R. | Cache for improving the connection capacity of a communications switch |
US5991746A (en) * | 1997-02-05 | 1999-11-23 | General Datacomm, Inc. | Billing system utilizing a modified file transfer protocol for collecting non-file MIB tables for billing in an ATM network |
US5956334A (en) | 1997-02-10 | 1999-09-21 | At & T Corporation | Method for interfacing a telephony and an ATM network to establish voice communication |
US5898673A (en) * | 1997-02-12 | 1999-04-27 | Siemens Information And Communication Networks, Inc. | System and method for prevention of cell loss due to quality of service contracts in an ATM network |
US6091691A (en) * | 1997-02-13 | 2000-07-18 | Samsung Electronics Co., Ltd. | Optical pickup having an objective lens compatible with a plurality of optical disk formats |
US6870827B1 (en) * | 1997-03-19 | 2005-03-22 | Verizon Services Corp. | Voice call alternative routing through PSTN and internet networks |
US6141339A (en) * | 1997-04-04 | 2000-10-31 | Sprint Communications Company, L.P. | Telecommunications system |
US5953316A (en) | 1997-04-17 | 1999-09-14 | The Trustees Of Columbia University In The City Of New York | Reservation method and system for asynchronous transfer mode communications |
US6028933A (en) * | 1997-04-17 | 2000-02-22 | Lucent Technologies Inc. | Encrypting method and apparatus enabling multiple access for multiple services and multiple transmission modes over a broadband communication network |
US6137800A (en) * | 1997-05-09 | 2000-10-24 | Sprint Communications Company, L. P. | System and method for connecting a call |
US6151315A (en) | 1997-06-02 | 2000-11-21 | At&T Corp | Method and apparatus for achieving fabric independent routing technique |
US6070243A (en) | 1997-06-13 | 2000-05-30 | Xylan Corporation | Deterministic user authentication service for communication network |
US5930238A (en) * | 1997-07-10 | 1999-07-27 | General Datacomm | Asynchronous transfer mode (ATM) multicast tree delivery switching |
US6049531A (en) | 1997-07-14 | 2000-04-11 | At&T Corp | Real-time multimedia conferencing over an ATM network using an intelligent ATM ADSL modem and ADSL access |
US6055232A (en) | 1997-08-15 | 2000-04-25 | Alcatel Usa Sourcing, L.P. | Telecommunications network architecture deploying intelligent network services in a legacy network |
US5943321A (en) | 1997-08-20 | 1999-08-24 | General Datacomm Inc. | Circuit set-up and caching for multimedia multipoint servers |
US6009100A (en) * | 1997-09-12 | 1999-12-28 | Lucent Technologies Inc. | Asynchronous transfer mode switching system |
US6134235A (en) * | 1997-10-08 | 2000-10-17 | At&T Corp. | Pots/packet bridge |
US6035405A (en) * | 1997-12-22 | 2000-03-07 | Nortel Networks Corporation | Secure virtual LANs |
US6256308B1 (en) * | 1998-01-20 | 2001-07-03 | Telefonaktiebolaget Lm Ericsson | Multi-service circuit for telecommunications |
US6175622B1 (en) | 1998-02-10 | 2001-01-16 | Northern Telecom Limited | Virtual private network for a telephone network |
US6263212B1 (en) | 1998-02-17 | 2001-07-17 | Alcatel Usa Sourcing, L.P. | Short message service center |
US6563918B1 (en) * | 1998-02-20 | 2003-05-13 | Sprint Communications Company, LP | Telecommunications system architecture for connecting a call |
US6275493B1 (en) | 1998-04-02 | 2001-08-14 | Nortel Networks Limited | Method and apparatus for caching switched virtual circuits in an ATM network |
US7227837B1 (en) * | 1998-04-30 | 2007-06-05 | At&T Labs, Inc. | Fault tolerant virtual tandem switch |
US6169735B1 (en) | 1998-04-30 | 2001-01-02 | Sbc Technology Resources, Inc. | ATM-based distributed virtual tandem switching system |
CA2269270C (en) * | 1998-05-11 | 2007-06-19 | At&T Corp. | Method and apparatus for a remote signaling and call processing in a telecommunications network |
US6195714B1 (en) | 1998-06-08 | 2001-02-27 | Nortel Networks Limited | System for transferring STM calls through ATM network by converting the STM calls to ATM and vice versa at the edge nodes of ATM network |
US6282194B1 (en) | 1998-09-23 | 2001-08-28 | Nortel Networks Limited | Transit trunk subnetwork system |
US6570869B1 (en) * | 1998-09-30 | 2003-05-27 | Cisco Technology, Inc. | Communicating voice over a packet-switching network |
US6782004B1 (en) * | 1998-11-09 | 2004-08-24 | Lucent Technologies Inc. | Intelligent network signaling using an open system protocol |
US6614781B1 (en) * | 1998-11-20 | 2003-09-02 | Level 3 Communications, Inc. | Voice over data telecommunications network architecture |
US6252952B1 (en) * | 1999-12-30 | 2001-06-26 | At&T Corp | Personal user network (closed user network) PUN/CUN |
US6343065B1 (en) * | 2000-01-20 | 2002-01-29 | Sbc Technology Resources, Inc. | System and method of measurement-based adaptive caching of virtual connections |
AU2001231040A1 (en) | 2000-01-20 | 2001-07-31 | Mci Worldcom, Inc. | Intelligent policy server system and method for bandwidth control in an atm network |
-
1999
- 1999-04-07 US US09/287,092 patent/US6169735B1/en not_active Expired - Fee Related
- 1999-04-30 AU AU38587/99A patent/AU3858799A/en not_active Abandoned
- 1999-04-30 EP EP99921349A patent/EP1086550A4/en not_active Withdrawn
- 1999-04-30 CA CA002299438A patent/CA2299438C/en not_active Expired - Fee Related
- 1999-04-30 WO PCT/US1999/006555 patent/WO1999057851A1/en active Application Filing
- 1999-05-25 TW TW088106842A patent/TW454398B/en not_active IP Right Cessation
-
2000
- 2000-05-01 US US09/562,725 patent/US6219348B1/en not_active Expired - Lifetime
- 2000-05-23 US US09/576,036 patent/US6765903B1/en not_active Expired - Fee Related
- 2000-09-21 US US09/666,839 patent/US6345048B1/en not_active Expired - Fee Related
-
2001
- 2001-02-28 US US09/794,914 patent/US6389011B2/en not_active Expired - Fee Related
- 2001-12-21 US US10/024,182 patent/US7099311B2/en not_active Expired - Fee Related
-
2004
- 2004-06-04 US US10/859,971 patent/US7095734B2/en not_active Expired - Fee Related
-
2006
- 2006-07-07 US US11/481,801 patent/US7304986B2/en not_active Expired - Fee Related
- 2006-07-07 US US11/481,802 patent/US20060274732A1/en not_active Abandoned
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7136378B2 (en) | 1998-04-30 | 2006-11-14 | Sbc Technology Resources, Inc. | Secure ATM-based distributed virtual tandem switching system and method |
US7227837B1 (en) | 1998-04-30 | 2007-06-05 | At&T Labs, Inc. | Fault tolerant virtual tandem switch |
US7843932B2 (en) | 1998-04-30 | 2010-11-30 | At&T Labs, Inc. | Secure ATM-based distributed virtual tandem switching system and method |
Also Published As
Publication number | Publication date |
---|---|
AU3858799A (en) | 1999-11-23 |
WO1999057851A1 (en) | 1999-11-11 |
US20040233909A1 (en) | 2004-11-25 |
EP1086550A1 (en) | 2001-03-28 |
US20020093947A1 (en) | 2002-07-18 |
US20060274735A1 (en) | 2006-12-07 |
US6389011B2 (en) | 2002-05-14 |
US7304986B2 (en) | 2007-12-04 |
US6765903B1 (en) | 2004-07-20 |
US20060274732A1 (en) | 2006-12-07 |
US7099311B2 (en) | 2006-08-29 |
TW454398B (en) | 2001-09-11 |
US6169735B1 (en) | 2001-01-02 |
CA2299438C (en) | 2003-09-30 |
US20010017861A1 (en) | 2001-08-30 |
US6345048B1 (en) | 2002-02-05 |
US6219348B1 (en) | 2001-04-17 |
EP1086550A4 (en) | 2006-05-31 |
US7095734B2 (en) | 2006-08-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2299438A1 (en) | Atm-based distributed virtual tandem switching system | |
CA2271763A1 (en) | Telecommunications tandem system for circuit-based traffic | |
MX9801822A (en) | Broadband telecommunications system. | |
CA2161473A1 (en) | Atm network architecture employing an out-of-band signaling network | |
TW217479B (en) | Establishing telecommunications call paths between clustered switching entities | |
JPH10500544A (en) | Communications system | |
CA2052349A1 (en) | Communication control system using an asynchronous transfer mode network. | |
GB2376839A (en) | NxN Crossbar packet switch | |
CA2214897A1 (en) | Broadband switching network | |
CA2148356A1 (en) | Establishing Telecommunications Call Paths in Broadband Communication Networks | |
KR960706730A (en) | ATM networks for narrowband communications | |
CA2271761A1 (en) | Broadband telecommunications system | |
CA2273369A1 (en) | Aal2 packet exchange device | |
CA2275433A1 (en) | Atm network providing transparently narrowband based telephony services without requiring atm-switching | |
EP0797373A3 (en) | A method and apparatus for converting synchronous narrowband signals into broadband asynchronous transfer mode signals in an integrated telecommunications network | |
KR100337648B1 (en) | The switching method of ALL2 traffic for base station controller system in mobile system | |
CA2356933A1 (en) | Mechanism and method for dynamically allocating atm connections between exchanges | |
GB2322507A (en) | Voice processing | |
JP2000224196A (en) | System and method for connecting terminal directly to atm | |
US6980557B1 (en) | Communications system with communication terminals which are connected to a switching system via a packet-oriented communication network | |
CA2289956A1 (en) | Hybrid tdm and atm voice switching central office and method of completing inter-office calls using same | |
KR100663567B1 (en) | Signalling system no.7 connection apparatus for connecting public switched telephone network and asynchronous transfer mode | |
IES80915B2 (en) | Telecommunication systems | |
CA2411027A1 (en) | Atm-based distributed network switching system | |
EP1161033A3 (en) | Network node for ATM transmission system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |