Patents by Inventor Seetharaman Khadri

Seetharaman Khadri has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7804789
    Abstract: Methods, systems, and computer program products for managing and selectively distributing routing information in a routing node are disclosed. In one implementation, a method for selectively distributing routing information in a routing node includes organizing internal signaling resources are organized so as to facilitate the efficient mapping of signaling system 7 (SS7) message transfer part (MTP) signaling protocol attributes to Internet protocol (IP)-based signaling resources. A routing status information sharing hierarchy is defined, which enables routing status information to be efficiently shared among members of a signaling mateset group. Members of a signaling mateset replicate and distribute SS7 MTP network management information across non-MTP signaling connections, such as IP connections.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: September 28, 2010
    Assignee: Tekelec
    Inventors: Jeffrey A. Craig, Mark A. Erickson, Mark E. Kanode, Seetharaman Khadri
  • Patent number: 7743131
    Abstract: Disclosed is a communications network element that is capable of routing signaling messages and also performing inter-network management functions in a converged telephony-data network environment. A signaling gateway routing node is adapted to facilitate signaling communication between nodes in a signaling system 7 network and nodes in an Internet protocol (IP) type network. In addition to basic message routing functionality, the signaling gateway routing node is adapted to notify nodes in the IP network when a node in the SS7 network becomes congested or unavailable. In certain cases, the signaling gateway selectively notifies only IP nodes that are concerned with the status of the troubled SS7 node, while in other cases, notification messages are broadcast to all relevant IP nodes. The signaling gateway also serves to filter redundant congestion status queries or polling type messages that are conveyed from IP nodes through to the distressed SS7 node.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: June 22, 2010
    Assignee: Tekelec
    Inventors: Dan Alan Brendes, Joseph William Keller, Seetharaman Khadri
  • Patent number: 7580517
    Abstract: A duplicate point code routing node is capable of routing messages to nodes having the same point code but being located in different national networks. The duplicate point code routing node associates a group code with received messages and uses the group code to route the messages to the appropriate national network. The group code may be determined based on the link or linkset from which a message is received or from the message itself.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: August 25, 2009
    Assignee: Tekelec
    Inventors: Seetharaman Khadri, Peter Joseph Marsico, Randal Latta Dunn, Jr., Thomas Matthew McCann, Mark Edward Kanode
  • Publication number: 20080075115
    Abstract: Disclosed is a communications network element that is capable of routing signaling messages and also performing inter-network management functions in a converged telephony-data network environment. A signaling gateway routing node is adapted to facilitate signaling communication between nodes in a signaling system 7 network and nodes in an Internet protocol (IP) type network. In addition to basic message routing functionality, the signaling gateway routing node is adapted to notify nodes in the IP network when a node in the SS7 network becomes congested or unavailable. In certain cases, the signaling gateway selectively notifies only IP nodes that are concerned with the status of the troubled SS7 node, while in other cases, notification messages are broadcast to all relevant IP nodes. The signaling gateway also serves to filter redundant congestion status queries or polling type messages that are conveyed from IP nodes through to the distressed SS7 node.
    Type: Application
    Filed: November 21, 2007
    Publication date: March 27, 2008
    Inventors: Dan Brendes, Joseph Keller, Seetharaman Khadri
  • Publication number: 20080075068
    Abstract: Disclosed is a communications network element that is capable of routing signaling messages and also performing inter-network management functions in a converged telephony-data network environment. A signaling gateway routing node is adapted to facilitate signaling communication between nodes in a signaling system 7 network and nodes in an Internet protocol (IP) type network. In addition to basic message routing functionality, the signaling gateway routing node is adapted to notify nodes in the IP network when a node in the SS7 network becomes congested or unavailable. In certain cases, the signaling gateway selectively notifies only IP nodes that are concerned with the status of the troubled SS7 node, while in other cases, notification messages are broadcast to all relevant IP nodes. The signaling gateway also serves to filter redundant congestion status queries or polling type messages that are conveyed from IP nodes through to the distressed SS7 node.
    Type: Application
    Filed: November 21, 2007
    Publication date: March 27, 2008
    Inventors: Dan Brendes, Joseph Keller, Seetharaman Khadri
  • Patent number: 7318091
    Abstract: Disclosed is a communications network element that is capable of routing signaling messages and also performing inter-network management functions in a converged telephony-data network environment. A signaling gateway routing node is adapted to facilitate signaling communication between nodes in a signaling system 7 network and nodes in an Internet protocol (IP) type network. In addition to basic message routing functionality, the signaling gateway routing node is adapted to notify nodes in the IP network when a node in the SS7 network becomes congested or unavailable. In certain cases, the signaling gateway selectively notifies only IP nodes that are concerned with the status of the troubled SS7 node, while in other cases, notification messages are broadcast to all relevant IP nodes. The signaling gateway also serves to filter redundant congestion status queries or polling type messages that are conveyed from IP nodes through to the distressed SS7 node.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: January 8, 2008
    Assignee: Tekelec
    Inventors: Dan Alan Brendes, Joseph William Keller, Seetharaman Khadri
  • Publication number: 20070127676
    Abstract: Methods, systems, and computer program products for using a presence database to deliver enhanced presence information regarding communications made to or from a presentity are disclosed. According to one aspect, a method may include obtaining enhanced presence information including information regarding parties involved in communications made to or from a presentity and storing the enhanced presence information in a presence database. A request may be received from a subscriber for obtaining the enhanced presence information regarding the presentity. In response to the request, the enhanced presence information may be delivered from the presence database to the subscriber.
    Type: Application
    Filed: October 25, 2006
    Publication date: June 7, 2007
    Inventor: Seetharaman Khadri
  • Patent number: 7136477
    Abstract: An end office support (EOS) routing node implements MTP layers 1-3 on behalf of one or more remote applications that share the true point code of the EOS routing node. Implementing MTP layers 1-3 includes receiving messages addressed to the true point code, determining whether the messages are contain application level information of interest to a remote application, and forwarding the application level information to the remote application. Messages may be routed internally within the EOS routing node using an internal point code used to uniquely identify the remote application within the EOS routing node. The EOS routing node may also perform network management functions on behalf of one or more remote applications.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: November 14, 2006
    Assignee: Tekelec
    Inventors: Jeffrey Alan Craig, Mac Ernest Davidson, Seetharaman Khadri, David Michael Sprague
  • Publication number: 20060246880
    Abstract: Methods, systems, and computer program products for dynamically coordinating collection and distribution of presence information are disclosed. According to one method, presence information is collected for a presentity. An event manager is selected from a plurality of event managers and is dynamically assigned to the presentity. The presence information is then communicated to the assigned event manager.
    Type: Application
    Filed: May 2, 2005
    Publication date: November 2, 2006
    Inventors: Patricia Baldwin, Seetharaman Khadri, David Sprague
  • Publication number: 20060209791
    Abstract: Methods, systems, and computer program products for providing telecommunication services between a SIP network and an SS7 network are disclosed. In one method, SIP/SS7 gateway receives an INVITE message from a SIP proxy server. The SIP/SS7 gateway extracts a called party number from the INVITE message and determines whether a telecommunications service is required and a type of service required for the INVITE message based on the called party number. The SIP/SS7 gateway then formulates an SS7 query to a database corresponding to the identified service type. The SIP/SS7 gateway receives a response from the database and uses data from the response to facilitate completion of the call. In one example, the SIP/SS7 gateway may forward a routing number extracted from the response back to the originating SIP proxy server. In another example, the SIP/SS7 gateway may generate a new INVITE message and forward the new INVITE message to a terminating SIP proxy server.
    Type: Application
    Filed: March 21, 2005
    Publication date: September 21, 2006
    Inventors: Seetharaman Khadri, Robby Benedyk, Vikram Nair
  • Publication number: 20050232407
    Abstract: Methods, systems, and computer program products for managing and selectively distributing routing information in a routing node are disclosed. In one implementation, a method for selectively distributing routing information in a routing node includes organizing internal signaling resources are organized so as to facilitate the efficient mapping of signaling system 7 (SS7) message transfer part (MTP) signaling protocol attributes to Internet protocol (IP)-based signaling resources. A routing status information sharing hierarchy is defined, which enables routing status information to be efficiently shared among members of a signaling mateset group. Members of a signaling mateset replicate and distribute SS7 MTP network management information across non-MTP signaling connections, such as IP connections.
    Type: Application
    Filed: March 18, 2005
    Publication date: October 20, 2005
    Inventors: Jeffrey Craig, Mark Erickson, Mark Kanode, Seetharaman Khadri
  • Patent number: 6839423
    Abstract: A multiple point code routing node is configured to recognize multiple point codes as true point codes. The multiple point code routing node originates, terminates, and processes messages having any of its any of its true point codes. As a result, the multiple point code routing node can replace two or more signal transfer points in a conventional telecommunications network without requiring reconfiguration of other nodes in the telecommunications network. Multiple point code routing node may also recognize multiple adjacent point codes or secondary adjacent point codes of a mated multiple point code routing node. Because the multiple point code routing node can associate multiple point codes with its mate, the number of logical or physical signaling links between adjacent multiple point code routing nodes can be increased.
    Type: Grant
    Filed: August 11, 2003
    Date of Patent: January 4, 2005
    Assignee: Tekelec
    Inventors: Seetharaman Khadri, Randal Latta Dunn, Jr.
  • Publication number: 20040032943
    Abstract: A multiple point code routing node is configured to recognize multiple point codes as true point codes. The multiple point code routing node originates, terminates, and processes messages having any of its any of its true point codes. As a result, the multiple point code routing node can replace two or more signal transfer points in a conventional telecommunications network without requiring reconfiguration of other nodes in the telecommunications network. Multiple point code routing node may also recognize multiple adjacent point codes or secondary adjacent point codes of a mated multiple point code routing node. Because the multiple point code routing node can associate multiple point codes with its mate, the number of logical or physical signaling links between adjacent multiple point code routing nodes can be increased.
    Type: Application
    Filed: August 11, 2003
    Publication date: February 19, 2004
    Applicant: Tekelec
    Inventors: Seetharaman Khadri, Randal Latta Dunn
  • Patent number: 6606379
    Abstract: A multiple point code routing node is configured to recognize multiple point codes as true point codes. The multiple point code routing node originates, terminates, and processes messages having any of its any of its true point codes. As a result, the multiple point code routing node can replace two or more signal transfer points in a conventional telecommunications network without requiring reconfiguration of other nodes in the telecommunications network. Multiple point code routing node may also recognize multiple adjacent point codes or secondary adjacent point codes of a mated multiple point code routing node. Because the multiple point code routing node can associate multiple point codes with its mate, the number of logical or physical signaling links between adjacent multiple point code routing nodes can be increased.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: August 12, 2003
    Assignee: Tekelec
    Inventors: Seetharaman Khadri, Randal Latta Dunn, Jr.
  • Publication number: 20030108067
    Abstract: An end office support (EOS) routing node implements MTP layers 1-3 on behalf of one or more remote applications that share the true point code of the EOS routing node. Implementing MTP layers 1-3 includes receiving messages addressed to the true point code, determining whether the messages are contain application level information of interest to a remote application, and forwarding the application level information to the remote application. Messages may be routed internally within the EOS routing node using an internal point code used to uniquely identify the remote application within the EOS routing node. The EOS routing node may also perform network management functions on behalf of one or more remote applications.
    Type: Application
    Filed: August 16, 2002
    Publication date: June 12, 2003
    Applicant: Tekelec
    Inventors: Jeffrey Alan Craig, Mark Ernest Davidson, Seetharaman Khadri, David Michael Sprague
  • Publication number: 20030031307
    Abstract: A multiple point code routing node is configured to recognize multiple point codes as true point codes. The multiple point code routing node originates, terminates, and processes messages having any of its any of its true point codes. As a result, the multiple point code routing node can replace two or more signal transfer points in a conventional telecommunications network without requiring reconfiguration of other nodes in the telecommunications network. Multiple point code routing node may also recognize multiple adjacent point codes or secondary adjacent point codes of a mated multiple point code routing node. Because the multiple point code routing node can associate multiple point codes with its mate, the number of logical or physical signaling links between adjacent multiple point code routing nodes can be increased.
    Type: Application
    Filed: September 28, 2001
    Publication date: February 13, 2003
    Inventors: Seetharaman Khadri, Randal Latta Dunn
  • Publication number: 20020196779
    Abstract: A duplicate point code routing node is capable of routing messages to nodes having the same point code but being located in different national networks. The duplicate point code routing node associates a group code with received messages and uses the group code to route the messages to the appropriate national network. The group code may be determined based on the link or linkset from which a message is received or from the message itself.
    Type: Application
    Filed: March 8, 2002
    Publication date: December 26, 2002
    Inventors: Seetharaman Khadri, Peter Joseph Marsico, Randal Latta Dunn, Thomas Matthew McCann, Mark Edward Kanode
  • Publication number: 20010049730
    Abstract: Disclosed is a communications network element that is capable of routing signaling messages and also performing inter-network management functions in a converged telephony-data network environment. A signaling gateway routing node is adapted to facilitate signaling communication between nodes in a signaling system 7 network and nodes in an Internet protocol (IP) type network. In addition to basic message routing functionality, the signaling gateway routing node is adapted to notify nodes in the IP network when a node in the SS7 network becomes congested or unavailable. In certain cases, the signaling gateway selectively notifies only IP nodes that are concerned with the status of the troubled SS7 node, while in other cases, notification messages are broadcast to all relevant IP nodes. The signaling gateway also serves to filter redundant congestion status queries or polling type messages that are conveyed from IP nodes through to the distressed SS7 node.
    Type: Application
    Filed: January 26, 2001
    Publication date: December 6, 2001
    Inventors: Dan Alan Brendes, Joseph William Keller, Seetharaman Khadri