Voice over IP optimization for mobile IP

Electrical computers and digital processing systems: multicomput – Computer-to-computer session/connection establishing – Session/connection parameter setting

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C709S238000, C709S245000, C370S329000

Reexamination Certificate

active

06963918

ABSTRACT:
An invention is disclosed that includes a Foreign Agent that supports Mobile IP and is configured to enable a node visiting the Foreign Agent to send IP packets including voice information via an IP address obtained from an H.323 gateway. This is accomplished, in part, by sending an agent advertisement identifying an H.323 gateway on the foreign network. A packet is received from the node, where the packet is addressed to the H.323 gateway and requests an IP address associated with a destination. A packet including the requested IP address is forwarded to the node. An IP packet addressed to the IP address and including voice information may then be received from the node. A node visiting the Foreign is capable of sending IP packets including voice information and receives an agent advertisement identifying an H.323 gateway on a foreign network associated with the Foreign Agent. The node sends a packet addressed to the H.323 gateway, where the packet requests an IP address associated with a destination. A packet including the requested IP address is received by the node. The node may then send an IP packet addressed to the IP address and including voice information from the node.

REFERENCES:
patent: 4692918 (1987-09-01), Elliott et al.
patent: 5016244 (1991-05-01), Massey, Jr. et al.
patent: 5018133 (1991-05-01), Tsukakoshi et al.
patent: 5218600 (1993-06-01), Schenkyr et al.
patent: 5371852 (1994-12-01), Attanasio et al.
patent: 5473599 (1995-12-01), Li et al.
patent: 5572528 (1996-11-01), Shuen
patent: 5619552 (1997-04-01), Karppanen et al.
patent: 5729537 (1998-03-01), Billström
patent: 5825759 (1998-10-01), Liu
patent: 5862345 (1999-01-01), Okanoue et al.
patent: 6061650 (2000-05-01), Malkin et al.
patent: 6078575 (2000-06-01), Dommety et al.
patent: 6195705 (2001-02-01), Leung
patent: 6339830 (2002-01-01), See et al.
patent: 6674734 (2004-01-01), Hsu et al.
patent: 6766168 (2004-07-01), Lim
patent: 2002/0026527 (2002-02-01), Das et al.
patent: 2002/0032751 (2002-03-01), Bharadwaj
patent: 2002/0058507 (2002-05-01), Valentine et al.
patent: 2002/0194259 (2002-12-01), Flykt et al.
patent: 2003/0182433 (2003-09-01), Kulkarni et al.
patent: 2003/0208568 (2003-11-01), Inoue et al.
Lu, et al, “Toward the PSTN/Internet Inter-Networking-Pre-PINT Implementation,” RFC2458, Nov. 1998, pp. 1-60.
Li, et al“Cisco Hot Standby Router Protocol(HSRP),” Mar., 1998, Network Working Group RFC 2281 (http://ftp.ietf.org/rfc/rfc2281.txt?number=2281).
Release notes for 3Com Corporation, “Conducting a Redundant Route for Network Resiliency”,Mar. 1994,NET Builder Family Bridge/Router, pp. 26-29.
J. Moy, “OSPF Version 2”, RFC 1247, Jul. 19, 1991.
D. Oran, “OSI IS-IS Intra-domain Routing Protocol”, RFC 1142, Feb. 1990.
Uyless Black, “TCP/IP and Related Protocols”, 1992,McGraw-Hill, Inc., pp. 226-249.
Chambless, et al., “Home Agent Redundancy Protocol(HARP)”, Oct. 27, 1997.
C. Perkins, “IP Mobility Support”, Networking Working Group, RFC 2002 Oct. 1996.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Voice over IP optimization for mobile IP does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Voice over IP optimization for mobile IP, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voice over IP optimization for mobile IP will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3509556

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.