Architecture for a central office using IP technology

Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C370S356000

Reexamination Certificate

active

06954454

ABSTRACT:
A telephony system and method having a switch for analog voice and data signals that is connected to a first network, and a router for routing Internet Protocol packets that is connected to a second network using Internet Protocol addressing. The telephony system and method also includes a telephony gateway that is connected to both the switch and the router for converting analog voice signals into Internet Protocol packets and for converting Internet Protocol packets into analog voice signals, the telephony gateway being connected, and a remote access server that is connected to both the switch and the router for converting analog data signals into Internet Protocol packets and for converting Internet Protocol packets into analog data signals. The switch may have a switch matrix capable of being connected to the Public Switched Telephone Network, a line rack with a plurality of line cards connected to the switch matrix, and a trunk rack with a plurality of trunk cards connected to the switch matrix. The switch matrix may also be connected to the telephony gateway and the remote access server.

REFERENCES:
patent: 6069890 (2000-05-01), White et al.
patent: 6134235 (2000-10-01), Goldman et al.
patent: 6243377 (2001-06-01), Phillips et al.
patent: 6292479 (2001-09-01), Bartholomew et al.
patent: 6292553 (2001-09-01), Fellingham et al.
patent: 6426961 (2002-07-01), Nimmagadda
patent: 6650619 (2003-11-01), Schuster et al.
patent: 2002/0024945 (2002-02-01), Civanlar et al.
P. Tom Taylor, Internet Engineering Task Force, Internet Draft, “Requirements for a Telephony Gateway Device Control Protocol,” <draft-taylor-ipdc-reqts-00.txt>, Sep. 1998, pp. 1-22.
P. Tom Taylor, Pat R. Calhoun, Allan C. Rubens, Internet Engineering Task Force, Internet Draft, “Base Protocol,” <draft-taylor-ipdc-00.txt>, Jul. 1998, pp. 1-78.
Mauricio Arango, Christian Huitema, Internet Engineering Task Force, Internet Draft, “Simple Gateway Control Protocol (SGCP),” <draft-huitema-sgcp-v1-02.txt>, Jul. 30, 1998, pp. 1-82.
Mauricio Arango, Andrew Dugan, Isaac Elliott, Christian Huitema, Scott Pickett, Internet Engineering Task Force, Internet Draft, “Media Gateway Control Protocol (MGCP),” <draft-huitema-megaco-mgcp-v0r1-05.txt>, pp. 1-120.
Isaac K. Elliott, Internet Engineering Task Force, Internet Draft, “Media Control Protocol,” <draft-elliott-ipdc-media-00.txt>, Aug. 1998, pp. 1-43.
Andrew Dugan, Internet Engineering Task Force, Internet Draft, “Connection Control Protocol,” <draft-dugan-ipdc-connection-00.txt>, Aug. 1998, pp. 1-28.
Bob Bell, Internet Engineering Task Force, Internet Draft, “Device Management Protocol,” <draft-bell-ipdc-signaling-00.txt>, Aug. 1998, pp. 1-17.
Information Sciences Institute, Internet Engineering Task Force (“IETF”), Request for Comments (“RFC”) RFC-791 “Internet Protocol,” Sep. 1981, pp. 1-45.
Information Sciences Institute, Internet Engineering Task Force (“IETF”), Request for Comments (“RFC”) RFC-793, “Transmission Control Protocol”, Sep. 1981, pp. 1-85.
International Telecommunication Union (ITU-T), Recommendation H.323, “Packet Based Multimedia Communications Systems,” Sep. 1997, pp. 1-119.
H. Schulzrinne, A. Rao, R. Lanphier, Internet Engineering Task Force (“IETF”), Request for Comments (“RFC”) RFC-2326, “Real Time Streaming Protocol (RTSP),” Apr. 1998, pp. 1-92.
H. Schulzrinne, S. Casner, R. Frederick, V. Jacobson, Internet Engineering Task Force (“IETF”), Request for Comments (RFC) RFC-1889, “RTP: A Transport Protocol for Real-Time Applications,” Jan. 1996, pp. 1-75.
M. Handley, H. Schulzrinne, E. Schooler, J. Rosenberg, Internet Engineering Task Force (“IETF”) Request for Comments 2543, “SIP: Session Initiation Protocol,” Mar. 1999, pp. 1-153.
T.J. Kostas, M.S. Borella, I. Sidhu, G.M. Schuster, J. Mahler, J. Grabiec, “Real-time voice overpacket-switched networks,”IEEE Network, vol. 12, No. 1, pp. 18-27, Jan./Feb. 1998.
U. Schoen, J. Hamann, A. Jugel, H. Kurzawa, C. Schmidt, “Convergence between public switching and the Internet,”IEEE Communications, vol. XX, No. 1, Jan. 1998.

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

Architecture for a central office using IP technology does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Architecture for a central office using IP technology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Architecture for a central office using IP technology will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3440324

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