Patents by Inventor Venkataramaiah Ravishankar

Venkataramaiah Ravishankar 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: 8934380
    Abstract: Methods, systems, and computer readable media for inducing the activation of a service trigger at a switching office in a communications network are disclosed. According to one method, a call setup message associated with a call is received. It is then determined whether service trigger induction is required for the call. In response to determining that service trigger induction is required for the call, the call setup message is modified to include service trigger induction information and the modified call setup message is directed to a destination switching office. At the destination switching office, a service trigger is activated based on the service trigger induction information in the modified call setup message.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: January 13, 2015
    Assignee: Tekelec Global, Inc.
    Inventors: Michael Coupland, Amrit Pal Singh Wadwha, Bradley W. Gosnell, Venkataramaiah Ravishankar
  • Patent number: 8825003
    Abstract: Methods, systems, and computer program products for providing variable rate prepaid telecommunication services utilizing a weighting function are disclosed. The method includes intercepting a signaling message that includes an available credit value associated with a prepaid communications session. A credit adjustment factor based on at least one call parameter associated with the prepaid communications session is determined. The method also includes applying the credit adjustment factor to the available credit value to generate an adjusted available credit value. The signaling message is modified to include the adjusted available credit value.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: September 2, 2014
    Assignee: Tekelec, Inc.
    Inventors: Venkataramaiah Ravishankar, Peter J. Marsico
  • Patent number: 8750328
    Abstract: Methods and systems for transmitting user part messages between signaling system seven (SS7) signaling points over an internet protocol (IP) network include receiving, at a signal transfer point, a first SS7 user part message. The first SS7 user part message can be received from a first SS7 signaling point, such as a service switching point (SSP). The first SS7 signaling point is encapsulated in a first IP packet. The first IP packet is transmitted to a second SS7 signaling point over an IP network.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: June 10, 2014
    Assignee: Tekelec Global, Inc.
    Inventors: David Michael Sprague, Dan Alan Brendes, Venkataramaiah Ravishankar, Paul Andrew Miller
  • Patent number: 8660245
    Abstract: Methods, systems, and computer readable media for advertising-supported call service are disclosed. According to one method, a SIP call setup message associated with a first call from a calling subscriber to a called subscriber is received. It is then determined whether the calling subscriber subscribes to a play advertisement pay less (PAPL) service. In response to determining that the calling subscriber subscribes to the PAPL service, an advertisement is presented to the calling subscriber via the subscriber's telephone, the call is connected to the called subscriber, and a reduced charge is effected for the call based on the PAPL service.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: February 25, 2014
    Assignee: Tekelec, Inc.
    Inventors: Nirmal K. Gupta, Venkataramaiah Ravishankar, Robert J. Sparks, Peter J. Marsico
  • Patent number: 8620263
    Abstract: According to one aspect, the subject matter described herein includes a method for credit status triggered policy control. The method may include monitoring one or more credit control request (CCR) and credit control answer (CCA) messages associated with a request of credit for a subscriber. The method may further include determining whether an amount of granted credit for a service flow associated with the subscriber has reached a predetermined minimum threshold value. The method may further include notifying a policy and charging rules function (PCRF) of the credit status associated with the subscriber when the predetermined minimum threshold value has been reached.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: December 31, 2013
    Assignee: Tekelec, Inc.
    Inventors: Venkataramaiah Ravishankar, Peter J. Marsico
  • Patent number: 8615217
    Abstract: The subject matter described herein includes methods, systems, and computer readable media for detecting and mitigating fraud in a distributed monitoring system which includes fixed-location monitoring and communication devices. According to one aspect, a method for detecting and mitigating fraud includes receiving a signaling message that originates or appears to originate from a wireless communication device that is associated with a fixed-location management system that performs at least one of monitoring and control of a resource, wherein the wireless communication device is responsible for communicating information generated by the management system over a network. The method further includes determining whether the signaling message indicates an expected location of the wireless communication device and in response to a determination that the signaling message does not indicate an expected location of the wireless communication device, initiating a mitigating action.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: December 24, 2013
    Assignee: Tekelec, Inc.
    Inventors: Venkataramaiah Ravishankar, Peter Joseph Marsico
  • Patent number: 8213440
    Abstract: Methods, systems, and computer program products for using an LRN based query and response mechanism (e.g., a switching office number portability processing system) to route calls to IP multimedia subsystem (IMS) subscribers are disclosed. According to one method, an LRN based response message including a communications service subscriber identifier is received. An IMS gateway LRN associated with the communications service subscriber identifier may be determined. The IMS gateway LRN associated with the communications service subscriber identifier may be inserted into the LRN based response message and routing the message.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: July 3, 2012
    Assignee: Tekelec Global, Inc.
    Inventors: Apirux Bantukul, Venkataramaiah Ravishankar, Peter J. Marsico
  • Patent number: 8213416
    Abstract: Methods, systems, and computer readable media for early media connection proxying are disclosed. According to one method, a call setup signaling message is received for establishing a call between a calling entity and a called entity. Based on at least one parameter in the call setup signaling message, it is determined whether an early media connection is required for the call. It is also determined whether early media connection proxying is required for the call. In response to determining that an early media connection and early media connection proxying are required for the call, signaling is performed on behalf of a network entity to establish an early media connection for the call.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: July 3, 2012
    Assignee: Tekelec, Inc.
    Inventors: Venkataramaiah Ravishankar, Peter J. Marsico
  • Patent number: 8199892
    Abstract: Methods, systems, and computer program products for providing a call attempt triggered messaging service in a communications network comprises intercepting a call signaling message including a calling party subscriber identifier and a called party subscriber identifier. A call attempt triggered message generation (CATMG) database using the called party subscriber identifier is queried. In the event the called party subscriber identifier exists in the CATMG database, a messaging service message is generated. The messaging service message is then transmitted to a contact address.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: June 12, 2012
    Assignee: Tekelec
    Inventors: Venkataramaiah Ravishankar, Cory A. Grant, Peter J. Marsico
  • Publication number: 20120099715
    Abstract: According to one aspect, the subject matter described herein includes a method for credit status triggered policy control. The method may include monitoring one or more credit control request (CCR) and credit control answer (CCA) messages associated with a request of credit for a subscriber. The method may further include determining whether an amount of granted credit for a service flow associated with the subscriber has reached a predetermined minimum threshold value. The method may further include notifying a policy and charging rules function (PCRF) of the credit status associated with the subscriber when the predetermined minimum threshold value has been reached.
    Type: Application
    Filed: October 20, 2011
    Publication date: April 26, 2012
    Inventors: Venkataramaiah Ravishankar, Peter J. Marsico
  • Publication number: 20110110274
    Abstract: Methods, systems, and computer readable media for inducing the activation of a service trigger at a switching office in a communications network are disclosed. According to one method, a call setup message associated with a call is received. It is then determined whether service trigger induction is required for the call. In response to determining that service trigger induction is required for the call, the call setup message is modified to include service trigger induction information and the modified call setup message is directed to a destination switching office. At the destination switching office, a service trigger is activated based on the service trigger induction information in the modified call setup message.
    Type: Application
    Filed: October 12, 2010
    Publication date: May 12, 2011
    Inventors: Michael Coupland, Amrit P. S. Wadhwa, Bradley W. Gosnell, Venkataramaiah Ravishankar
  • Patent number: 7933608
    Abstract: A method for providing presence gateway functionality includes deriving presence information for subscribers in a first set of subscribers based on telecommunications signaling messages. The first set of subscribers includes at least one subscriber who is not a subscribed-to presentity. The method also includes determining whether presence status information for a subscriber in the first set of subscribers has changed. In response to detecting a change in presence status, it is determined whether the subscriber is a subscribed-to presentity. If the subscriber is a subscribed-to presentity, a presence server is notified of the change in status of the subscriber.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: April 26, 2011
    Assignee: Tekelec
    Inventors: Aziz A. Tejani, Richard E. Schaedler, Venkataramaiah Ravishankar, Joe E Defenderfer, Larry Gene Slate, Patricia A. Baldwin, Richard Nolan Kennedy, Jr.
  • Patent number: 7912486
    Abstract: Methods, systems, and computer program products for surveillance of messaging service messages in a communications network are disclosed. According to one aspect, a system is provided for intercepting a messaging service message in a communications network. The system can include a communication module for receiving and sending messaging service messages from a communications network. Further, the system can include a subscriber surveillance database for maintaining a listing of subscribers that have been placed under surveillance. The system can also include a surveillance function for receiving a messaging service message, extracting a subscriber identifier from the messaging service message, performing a lookup in the surveillance database using the subscriber identifier, and performing a surveillance action in response to locating a matching entry in the database.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: March 22, 2011
    Assignee: Tekelec
    Inventors: Apirux Bantukul, Peter J. Marsico, Venkataramaiah Ravishankar, Travis Earl Russell
  • Publication number: 20110014939
    Abstract: The subject matter described herein includes methods, systems, and computer readable media for detecting and mitigating fraud in a distributed monitoring system which includes fixed-location monitoring and communication devices. According to one aspect, a method for detecting and mitigating fraud includes receiving a signaling message that originates or appears to originate from a wireless communication device that is associated with a fixed-location management system that performs at least one of monitoring and control of a resource, wherein the wireless communication device is responsible for communicating information generated by the management system over a network. The method further includes determining whether the signaling message indicates an expected location of the wireless communication device and in response to a determination that the signaling message does not indicate an expected location of the wireless communication device, initiating a mitigating action.
    Type: Application
    Filed: June 25, 2010
    Publication date: January 20, 2011
    Inventors: Venkataramaiah Ravishankar, Peter Joseph Marsico
  • Publication number: 20100330960
    Abstract: Methods, systems, and computer readable media for third party monitoring and control of calls are disclosed. For example, a method performed at a signaling node includes receiving a signaling message indicating an attempted call communication to a called party device from a calling party device and determining if the called party device is subscribed to a call monitoring service. In response to determining that the called party device is subscribed to the call monitoring service, sending a notification message to a monitoring third party device associated with the called party device, wherein the notification message indicates the attempted call communication between the monitored called party device and the calling party device.
    Type: Application
    Filed: June 25, 2010
    Publication date: December 30, 2010
    Inventors: Venkataramaiah Ravishankar, Apirux Bantukul, Peter J. Marsico
  • Patent number: 7839889
    Abstract: Methods and systems for transmitting user part messages between signaling system seven (SS7) signaling points over an internet protocol (IP) network include receiving, at a signal transfer point, a first SS7 user part message. The first SS7 user part message can be received from a first SS7 signaling point, such as a service switching point (SSP). The first SS7 signaling point is encapsulated in a first IP packet. The first IP packet is transmitted to a second SS7 signaling point over an IP network.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: November 23, 2010
    Assignee: Tekelec
    Inventors: David Michael Sprague, Dan Alan Brendes, Venkataramaiah Ravishankar, Paul Andrew Miller
  • Patent number: 7738488
    Abstract: Methods, Systems, and Computer Program Products for Providing Wireless-Fidelity (Wi-Fi) Gateway Visitor Location Register (VLR) Functionality. A method is disclosed herein for providing Wi-Fi gateway VLR functionality for an access point in a Wi-Fi network. The steps of the method can occur at a Wi-Fi gateway VLR that can perform VLR functions for at least one access point in a Wi-Fi network. The VLR functions can include receiving a registration request from a subscriber located in a service area of an access point in the Wi-Fi network. Further, the VLR functions can include authenticating the subscriber with a home location register (HLR) associated with the cellular network. The VLR functions can also include receiving information associated with the subscriber from the HLR. The Wi-Fi gateway VLR can store the information associated with the subscriber and maintain Wi-Fi reachability information for sending media packets to the subscriber in the Wi-Fi network.
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: June 15, 2010
    Assignee: Tekelec
    Inventors: Peter J. Marsico, Venkataramaiah Ravishankar
  • Publication number: 20100080371
    Abstract: Methods, systems, and computer readable media for advertising-supported call service are disclosed. According to one method, a SIP call setup message associated with a first call from a calling subscriber to a called subscriber is received. It is then determined whether the calling subscriber subscribes to a play advertisement pay less (PAPL) service. In response to determining that the calling subscriber subscribes to the PAPL service, an advertisement is presented to the calling subscriber via the subscriber's telephone, the call is connected to the called subscriber, and a reduced charge is effected for the call based on the PAPL service.
    Type: Application
    Filed: August 18, 2009
    Publication date: April 1, 2010
    Inventors: Nirmal K. Gupta, Venkataramaiah Ravishankar, Robert J. Sparks, Peter J. Marsico
  • Publication number: 20090328118
    Abstract: Methods, systems, and computer readable media providing an enhanced call alert service via a television service network are described. In one embodiment, the system comprises a call alert service mediator (CASM) that includes a telephone network interface for receiving, from a telecommunications network, a query message for a call to a called party device associated with a subscriber for requesting instructions for completing or modifying the call. The CASM also includes a TV network interface for, in response to the query from the telecommunications network, for sending a message to a TV network, wherein the message results in notification of the call to the subscriber via an customer premises equipment (CPE) device and the requesting of instructions from the subscriber via the CPE device for completing or modifying the call.
    Type: Application
    Filed: May 1, 2009
    Publication date: December 31, 2009
    Inventors: Venkataramaiah Ravishankar, Peter Marsico
  • Publication number: 20090304173
    Abstract: Methods, systems, and computer readable media for early media connection proxying are disclosed. According to one method, a call setup signaling message is received for establishing a call between a calling entity and a called entity. Based on at least one parameter in the call setup signaling message, it is determined whether an early media connection is required for the call. It is also determined whether early media connection proxying is required for the call. In response to determining that an early media connection and early media connection proxying are required for the call, signaling is performed on behalf of a network entity to establish an early media connection for the call.
    Type: Application
    Filed: June 1, 2009
    Publication date: December 10, 2009
    Inventors: Venkataramaiah Ravishankar, Peter J. Marsico