Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2005-04-05
2005-04-05
Pham, Chi (Department: 2667)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S389000, C370S401000
Reexamination Certificate
active
06876646
ABSTRACT:
A method and apparatus are provided. The method comprises receiving a call request from a first media gateway controller to a second media controller over a network. The method further comprises requesting information from the first media gateway controller. The method also comprises receiving the information before establishing a bearer path over the network.
REFERENCES:
patent: 6404870 (2002-06-01), Kia et al.
patent: 6418210 (2002-07-01), Sayko
patent: 6765912 (2004-07-01), Vuong
S. Donovan; “The SIP INFO method”; http://www.cs.columbia.edu/sip/drafts/sip/draft-ietf-sip-info-method-00.txt; Oct. 1999.*
Culppeper, “SIP INFO Method for Event Reporting”, http:www1.cs.columbia.edu/sip/drafts/draft-culpepper-sip-info-event-00.txt.*
Choudhuri, “SIP INFO method for DTMF digit transport and collection”, http://www.alternic.org/drafts/drafts-c-d/draft-choudhurisip-info-digit-00.html.*
Girard D. G. and Hoffpauir S. “SIP-Telephony Service Interface Overview”, http://www1.cs.columbia.edu/sip/drafts/SIP-TSI1.0.doc.*
Fernando Cuervo et al., Media Gateway Control (Megaco) Working Group, “Megaco Protocol,” Dated Oct. 1999, pp. 1-151.
J. Postel; Request For Comments 768, “User Datagram Protocol”, Aug. 28, 1980, pp. 1-3.
Information Sciences Institute, Request for Comments 791, “Internet Protocol-Darpa Internet Program, Protocol Specification,” Sep. 1981, pp. 1-48.
Information Sciences Institute, Request For Comments 793, “Transmission Control Protocol—Darpa Internet Program, Protocol Specification,” Sep. 1981, pp. 1-91.
S. Deering, et al., Network Working Group, Request For Comments 2460, “Internet Protocol, Version 6 (IPv6) Specification,” Dec. 1998, pp. 1-36.
M. Handley, et al., Network Working Group, Request For Comments 2543, “SIP: Session Initiation Protocol”, Mar. 1999, pp. 1-153.
M. Arango et al., Network Working Group, Request For Comments 2705, Entitled “Media Gateway Control Protocol (MGCP) Version 1.0”, Dated Oct. 1999, pp. 1-118.
Recommendation Q. 1901, Bearer Independent Call Control Protocol, Dated Sep. 12, 1999, pp. 1-71.
V. Bharatia et al.,Internat Draft; draft-culpepper-sip-info-event-00.txt; SIP INFO Method For Event Reporting;Internet Engineering Task Force, Apr. 2000, pp. 1-10.
C. Huitema et al.,An Architecture For Residential Internet Telephony Service; IEEE Inc., New York, vol. 13, No. 3, May 1999, pp. 50-56.
Zimmerer,SIP+ (Inter MGC Protocol); Edition 0.0; Draft 0.1, Dec. 1998, pp. 1-20.
T. Taylor et al.,Megaco/H.248: A New Standard For Media Gateway Control; IEEE Service Center, Piscataway, NJ, vol. 38, No. 10, Oct. 2000, pp. 124-132.
L-P. Anquetil et al.,Media Gateway Control Protocol And Voice Over IP Gateways. MGCP and VolP Gateways will Offer Seamless Interworking Of New VolP Networks With today's Telephone Networks.;Electrical Communication, Alcatel, Brussels, BE, Apr. 1999, pp. 151-157.
Craycraft Steven W.
Deutsch Joseph J.
Dore Tammy S.
Sharma Pratima
Ly Anh-Vu
Nortel Networks Limited
Pham Chi
Trop Pruner & Hu P.C.
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