Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2008-06-24
2008-06-24
Nguyen, Chau (Department: 2619)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S352000, C375S222000
Reexamination Certificate
active
07391784
ABSTRACT:
A method and system of communicating state information between devices of a communications network is provided. A gateway of a packet network may change operating states during transmission of packets to another gateway. The gateway may indicate the state change to the receiving gateway by sending a burst of messages to the receiving gateway. If the gateway does not respond to any of these messages, the gateway may then send another message to the receiving gateway, which requires the receiving gateway to respond. Or, the gateway may send individual messages to the receiving gateway for a desired amount of time and, if the receiving gateway does not respond to any of these, then the gateway may again send the must respond message to the receiving gateway.
REFERENCES:
patent: 6493334 (2002-12-01), Krzymien et al.
patent: 6757367 (2004-06-01), Nicol
patent: 7058085 (2006-06-01), Earnshaw et al.
patent: 7149224 (2006-12-01), Krishnamurthy
International Telecommunication Union (ITU-T), “Modem-Over-IP Networks—Foundation”, ITU-T Recommendation V.150.0 (V.MoIP-f); Oct. 15-25, 2002.
International Telecommunication Union (ITU-T), “Procedures For the End-To End Connection of V-Series DCES Over An IP Network”, ITU-T Recommendation V.150.1; Oct. 15-25, 2002.
Internet Engineering Task Force (IETF), Requests For Comments (RFC) 1889, “RTP: A Transport Protocol For Real-Time Applications”, Jan. 1996.
Internet Engineering Task Force (IETF), Requests For Comments (RFC) 793, “Transmission Control Protocol; DARPA Internet Program Protocol Specification”, Sep. 1981.
Internet Engineering Task Force (IETF), Requests For Comments (RFC) 768, “User Datagram Protocol”, Aug. 28, 1980.
International Telecommunication Union (ITU-T), “Pulse Code Modulation (PCM) of Voice Frequencies”, ITU-T Recommendation G.711; 1988, 1993.
International Telecommunication Union (ITU-T), “Coding of Speech At 8 kbits/s Using Conjugate-Structure Algebraic-Code-Excited Linear-Prediction (CS-ACELP)”, ITU-T Recommendation G.729; 1996.
International Telecommuncation Union (ITU-T), “Dual Rate Speech Coder For Multimedia Communications Transmitting at 5.3 and 6.3 kbit/s”, ITU-T Recommendation G.723.1; 1996.
International Telegraph and Telephone Consultative Committee (CCITT), “General Aspects of Digital Transmission Systems; Terminal Equipments: 40,32,24, 16 kbits/s Adaptive Differential Pulse Code Modulation (ADPCM)”, CCITT Recommendation G.726; 1990.
Internet Engineering Task Force (IETF), Requests For Comments (RFC) 2833, “RTP Payload For DTMF Digits, Telephony Tones and Telephony Signals”, May 2000.
Internet Engineering Task Force (IETF), Requests For Comments (RFC) 791, “Internet Protocol: DARPA Internet Program Protocol Specification”, Sep. 1981.
International Telecommunication Union (ITU-T), “Series T: Terminals For Telematic Services: Procedures For Document Facsimile Transmission In The General Switched Telephone Network”, ITU-T Recommendation T.30; 2000.
International Telecommunication Union (ITU-T), “Series T: Terminals For Telematic Services: Procedures For Real-Time Group 3 Facsimile Communication Over IP Networks”, ITU-T Recommendation T.38; 2002.
International Telecommunication Union (ITU-T), “1200 Bits Per Second Duplex Modem Standardized For Use In The General Switched Telephone Network and On Point-To-Point 2-Wire Leased Telephone-type Circuits”, ITU-T Recommendation V.22, 1988, 1993.
International Telecommunication Union (ITU-T), “A Family of 2-Wire, Duplex Modems Operating At Data Signalling Rates Of Up To 9600 bit/s For Use On The General Switched Telephone Network and On Leased Telephone-Type Circuits”, ITU-T Recommendation V.32; 1993.
International Telecommunication Union (ITU-T), “A Modem Operating At Data Signalling Rates Of Up To 28 800 bit/s For Use On the General Switched Telephone Network and On Leased Point-To-Point 2-Wire Telephone-Type Circuits”, ITU-T Recommendation V.34; 1994.
International Telecommunication Union (ITU-T), “Procedures For Starting Sessions Of Data Transmission Over the General Switched Telephone Network”, ITU-T Recommendation V.8; 1994.
International Telecommunication Union (ITU-T), “A Digital Modem Operating At Signalling Rates Of Up To 64 000 bit/s For Use On a 4-Wire Circuit Switched Connection and On Leased Point-To-Point 4-Wire Digital Circuits”, ITU-T Recommendation V. 91; 2000.
International Telecommunication Union (ITU-T), “A Digital Modem and Analogue Modem Pair For Use On the Public Switched Telephone Network (PSTN) At Data Signalling Rates of Up To 56 000 bit/s Downstream and Up To 33 600 bit/s Upstream”, ITU-T Recommendation V.90; 1999.
International Telecommunication Union (ITU-T), “Enhancements To Recommendation V.90”, ITU-T Recommendation V.92; 2001.
3Com Corporation
McDonnell & Boehnen Hulbert & Berghoff
Nguyen Chau
Smith Marcus R
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