Patents by Inventor Harsh V. Mendiratta

Harsh V. Mendiratta 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: 10972514
    Abstract: A communication session is established between a first communication device and a second communication device. The communication session comprises a first dialog between an application server and the first communication device. The first communication device uses a first network address in the first dialog. In response to an event, such as a first network interface failing, a SIP INVITE with replaces header message is received by the application server with a second address of the first communication device. In response to receiving the SIP INVITE with replaces header message from the first communication device with a second address of the first communication device, the first dialog between the application server and the first device is reestablished using the second network address.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: April 6, 2021
    Assignee: Avaya Inc.
    Inventors: Sanjog Kotnis, Sreekanth Subrahmanya Nemani, Mohan Vinayak Phadnis, Anand Krishna Padhye, Joel Ezell, Eric Cooper, Harsh V. Mendiratta, Tibor Lukac, Stephen Andrew Baker
  • Patent number: 10931720
    Abstract: In an attempt to establish a communication session between a first communication entity and a second communication entity, a first message is received. For example, the first message may be a SIP INVITE message. A determination is made, based on a registration message from the first communication entity and/or the second communication entity, that at least one of the first communication entity or the second communication entity is Internet Protocol (IP) version intolerant. In response to determining that the at least one of the first communication entity or the second communication entity is IP version intolerant, one or more IP addresses are adapted in messages (e.g., the SIP INVITE message) for establishing the communication session. The adaption changes/removes the one or more IP addresses to a different IP version to ensure proper IP compatibility.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: February 23, 2021
    Assignee: Avaya Inc.
    Inventors: Tibor Lukac, Harsh V. Mendiratta
  • Patent number: 10904299
    Abstract: To deal with ANAT/IP version incompatibility, a communication endpoint registers with a communication system using a SIP REGISTER message. For example, the communication endpoint registers when it boots up. The SIP REGISTER message indicates that the communication endpoint: does not support the Alternative Network Address Type (ANAT) protocol or is one of IPV4 intolerant or IPV6 intolerant. When a SIP INVITE message is received with a Session Description Protocol (SDP) offer that comprises the ANAT protocol or an IP address that is opposite of the IP version intolerance of the communication endpoint, a 4XX SIP response message is sent to the sender of the SIP INVITE to indicate the incompatibility. In response, to receiving the 4XX SIP response message, the SIP INVITE is modified to be compatible with the capabilities of the communication endpoint.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: January 26, 2021
    Assignee: Avaya Inc.
    Inventors: Tibor Lukac, Harsh V. Mendiratta
  • Publication number: 20200028968
    Abstract: A request to establish a communication session with a second communication device is received. The request to establish the communication session comprises one or more routing attributes for routing the communication session. The one or more routing attributes for routing the communication session are looked up in a dynamic routing framework. The communication session is routed to a third communication device or destination instead of the second communication device based on the one or more routing attributes and one or more rules defined in the dynamic routing framework. For example, the communication session is routed to a specific contact center queue based on the routing attribute instead of initially being routed to an Interactive Voice Response (IVR) system.
    Type: Application
    Filed: December 21, 2018
    Publication date: January 23, 2020
    Inventors: Harsh V. Mendiratta, Tibor Lukac
  • Patent number: 10469538
    Abstract: In response to a failure of a SIP dialog between a first communication endpoint and a first communication application (i.e., when a session manager fails), a first Session Initiation Protocol (SIP) INVITE with replaces header message received from the first communication endpoint. The first SIP INVITE with replaces header message comprises a Session Description Protocol (SDP) offer and a first request Universal Resource Identifier (URI) that identifies the first communication application. In response to receiving the first SIP INVITE with replaces header message, a second SIP INVITE with replaces header message is sent to a second communication application. The second SIP INVITE with replaces header message is used to reestablish all the SIP failed dialogs in order to reestablish the original communication session and reestablish the original media stream.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: November 5, 2019
    Assignee: Avaya Inc.
    Inventors: Harsh V. Mendiratta, Tibor Lukac, Stephen Andrew Baker
  • Patent number: 10230801
    Abstract: A method, server, and communication system are described that, among other things, enable a server in a server cluster to assume control of any “early” Session Initiation Protocol (SIP) dialogs previously handled by another server in the server cluster when that server fails or otherwise becomes unable to continue handling a communication session. The replacement server in the server cluster is able to generate one or more messages that include an identification of the dialog identifiers used by the now failed server as well as new dialog identifiers to replace the dialog identifiers used by the now failed server.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: March 12, 2019
    Assignee: Avaya Inc.
    Inventors: Joel M. Ezell, Thorsten Ohrstrom Sandgren, Timothy Ross, Harsh V. Mendiratta
  • Patent number: 10225401
    Abstract: A fingerprint is received from a communication endpoint. The fingerprint is based on a hardware identifier of the communication endpoint. For example the fingerprint may be based on a Media Access Control (MAC) address of the communication endpoint. A request for an emergency call from the communication endpoint is received that also includes the fingerprint. For instance, a user may initiate a 911 call from the communication endpoint. The emergency call is established. After the emergency call is disconnected, a request for an emergency call back is received. For example, if the emergency call prematurely disconnected, the emergency call back is initiated. The request for the emergency call back is routed to the communication endpoint based on the fingerprint to ensure that the emergency call is properly completed.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: March 5, 2019
    Assignee: Avaya Inc.
    Inventors: Manish Chatterjee, Purnendu Dhal, Harsh V. Mendiratta
  • Patent number: 10200418
    Abstract: A communication system, method, and components are described. Specifically, a communication system having the ability to carry a transitive context and communicate the transitive context to new participant user agents for continuity through all related call dialogs is disclosed. The transitive context communication is possible through the use of a newly created SIP dialog using a REFER message and/or an INVITE message for all call flows and topology change operations.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: February 5, 2019
    Assignee: Avaya Inc.
    Inventors: Harsh V. Mendiratta, Joaquin Omar Alvarado, Gordon R. Brunson
  • Patent number: 10193931
    Abstract: To reestablish a media stream, first and second SIP INVITE with replaces header messages are received by an application from a first and second communication endpoint respectively. The SIP INVITE with replaces header messages comprises a first Session Description Protocol (SDP) offer that are each based a change of a network address used by the respective communication endpoint. In response to receiving one or both of the SIP INVITE with replaces header messages, the application, depending on implementation, sends one of a first SIP 200 OK message with a fabricated SDP answer or sends a SIP 480 temporarily unavailable message that does not comprise a SDP offer. This initiates the process of reestablishing the media stream on new network without dropping the communication session.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: January 29, 2019
    Assignee: Avaya Inc.
    Inventors: Harsh V. Mendiratta, Tibor Lukac, Stephen Andrew Baker
  • Publication number: 20180359291
    Abstract: To deal with ANAT/IP version incompatibility, a communication endpoint registers with a communication system using a SIP REGISTER message. For example, the communication endpoint registers when it boots up. The SIP REGISTER message indicates that the communication endpoint: does not support the Alternative Network Address Type (ANAT) protocol or is one of IPV4 intolerant or IPV6 intolerant. When a SIP INVITE message is received with a Session Description Protocol (SDP) offer that comprises the ANAT protocol or an IP address that is opposite of the IP version intolerance of the communication endpoint, a 4XX SIP response message is sent to the sender of the SIP INVITE to indicate the incompatibility. In response, to receiving the 4XX SIP response message, the SIP INVITE is modified to be compatible with the capabilities of the communication endpoint.
    Type: Application
    Filed: June 8, 2017
    Publication date: December 13, 2018
    Inventors: Tibor Lukac, Harsh V. Mendiratta
  • Publication number: 20180359283
    Abstract: In an attempt to establish a communication session between a first communication entity and a second communication entity, a first message is received. For example, the first message may be a SIP INVITE message. A determination is made, based on a registration message from the first communication entity and/or the second communication entity, that at least one of the first communication entity or the second communication entity is Internet Protocol (IP) version intolerant. In response to determining that the at least one of the first communication entity or the second communication entity is IP version intolerant, one or more IP addresses are adapted in messages (e.g., the SIP INVITE message) for establishing the communication session. The adaption changes/removes the one or more IP addresses to a different IP version to ensure proper IP compatibility.
    Type: Application
    Filed: June 8, 2017
    Publication date: December 13, 2018
    Inventors: Tibor Lukac, Harsh V. Mendiratta
  • Patent number: 9979754
    Abstract: An Address Resolution Protocol (ARP) process receives a first Internet Protocol (IP) address that is associated with a Media Access Control (MAC) address of a communication endpoint. A first Session Initiation Protocol (SIP) INVITE for an emergency call request is received from the communication endpoint. The ARP process receives a second IP address that is associated with the MAC address of the communication endpoint. A second SIP INVITE is received that is a request for an emergency call back. The second SIP INVITE is routed to the communication endpoint based on the second IP address associated with the MAC address of the communication endpoint to reestablish the emergency call with the communication endpoint.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: May 22, 2018
    Assignee: Avaya Inc.
    Inventors: Harsh V. Mendiratta, Manish Chatterjee, Purnendu Dhal
  • Patent number: 9942330
    Abstract: Session Manager anti-looping creates a model that is an effective barrier to looping, efficiently identifying a loop condition by maintaining temporary individual call counters for header sets within temporal parameters and terminating the loop condition upon detection. The system provides an administrator with adjustable parameters for loop detection count and loop detection interval, thereby allowing protection against loop conditions, both inadvertent and intentional.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: April 10, 2018
    Assignee: Extreme Networks, Inc.
    Inventors: Harsh V. Mendiratta, Stephen Andrew Baker, Alejandro Vaquero, Stephen R. Durney, Ryan Scott Wallach, William G. Bahr
  • Publication number: 20170289201
    Abstract: To reestablish a media stream, first and second SIP INVITE with replaces header messages are received by an application from a first and second communication endpoint respectively. The SIP INVITE with replaces header messages comprises a first Session Description Protocol (SDP) offer that are each based a change of a network address used by the respective communication endpoint. In response to receiving one or both of the SIP INVITE with replaces header messages, the application, depending on implementation, sends one of a first SIP 200 OK message with a fabricated SDP answer or sends a SIP 480 temporarily unavailable message that does not comprise a SDP offer. This initiates the process of reestablishing the media stream on new network without dropping the communication session.
    Type: Application
    Filed: March 31, 2016
    Publication date: October 5, 2017
    Inventors: Harsh V. Mendiratta, Tibor Lukac, Stephen Andrew Baker
  • Publication number: 20170289200
    Abstract: In response to a failure of a SIP dialog between a first communication endpoint and a first communication application (i.e., when a session manager fails), a first Session Initiation Protocol (SIP) INVITE with replaces header message received from the first communication endpoint. The first SIP INVITE with replaces header message comprises a Session Description Protocol (SDP) offer and a first request Universal Resource Identifier (URI) that identifies the first communication application. In response to receiving the first SIP INVITE with replaces header message, a second SIP INVITE with replaces header message is sent to a second communication application. The second SIP INVITE with replaces header message is used to reestablish all the SIP failed dialogs in order to reestablish the original communication session and reestablish the original media stream.
    Type: Application
    Filed: March 31, 2016
    Publication date: October 5, 2017
    Inventors: Harsh V. Mendiratta, Tibor Lukac, Stephen Andrew Baker
  • Patent number: 9762628
    Abstract: A communication system, method, and components are described. Specifically, a communication system having the ability to facilitate a semi-attended transfer in SIP for an IP-Multimedia Subsystem (IMS) environment is disclosed. The semi-attended transfer is possible even though one or more Back-to-Back User Agents are positioned between users engaged in the semi-attended transfer.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: September 12, 2017
    Assignee: Avaya Inc.
    Inventors: Milo{hacek over (s)} Pujić, Joel M. Ezell, Harsh V. Mendiratta
  • Publication number: 20170251027
    Abstract: An Address Resolution Protocol (ARP) process receives a first Internet Protocol (IP) address that is associated with a Media Access Control (MAC) address of a communication endpoint. A first Session Initiation Protocol (SIP) INVITE for an emergency call request is received from the communication endpoint. The ARP process receives a second IP address that is associated with the MAC address of the communication endpoint. A second SIP INVITE is received that is a request for an emergency call back. The second SIP INVITE is routed to the communication endpoint based on the second IP address associated with the MAC address of the communication endpoint to reestablish the emergency call with the communication endpoint.
    Type: Application
    Filed: February 25, 2016
    Publication date: August 31, 2017
    Inventors: Harsh V. Mendiratta, Manish Chatterjee, Purnendu Dhal
  • Publication number: 20170251105
    Abstract: A fingerprint is received from a communication endpoint. The fingerprint is based on a hardware identifier of the communication endpoint. For example the fingerprint may be based on a Media Access Control (MAC) address of the communication endpoint. A request for an emergency call from the communication endpoint is received that also includes the fingerprint. For instance, a user may initiate a 911 call from the communication endpoint. The emergency call is established. After the emergency call is disconnected, a request for an emergency call back is received. For example, if the emergency call prematurely disconnected, the emergency call back is initiated. The request for the emergency call back is routed to the communication endpoint based on the fingerprint to ensure that the emergency call is properly completed.
    Type: Application
    Filed: February 25, 2016
    Publication date: August 31, 2017
    Inventors: Manish Chatterjee, Purnendu Dhal, Harsh V. Mendiratta
  • Publication number: 20170111407
    Abstract: A communication session is established between a first communication device and a second communication device. The communication session comprises a first dialog between an application server and the first communication device. The first communication device uses a first network address in the first dialog. In response to an event, such as a first network interface failing, a SIP INVITE with replaces header message is received by the application server with a second address of the first communication device. In response to receiving the SIP INVITE with replaces header message from the first communication device with a second address of the first communication device, the first dialog between the application server and the first device is reestablished using the second network address.
    Type: Application
    Filed: October 14, 2015
    Publication date: April 20, 2017
    Inventors: Sanjog Kotnis, Sreekanth Subrahmanya Nemani, Mohan Vinayak Phadnis, Anand Krishna Padhye, Joel Ezell, Eric Cooper, Harsh V. Mendiratta, Tibor Lukac, Stephen Andrew Baker
  • Patent number: 9602634
    Abstract: Systems and methods are described for creating and managing Global Session Identifiers (GSIDs) for communication sessions. GSIDs provide a way to globally identify communication sessions including those communication sessions that have experienced one or more topology changes. The GSID may be considered a header itself or a value within a header and information contained within a GSID can be used to trace backwards through time to find the session segments that led up to (or exist concurrently to) a currently signaled session.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: March 21, 2017
    Assignee: Avaya Inc.
    Inventors: Harsh V. Mendiratta, Gordon R. Brunson, Kurt Haserodt, Raji Chinnappa, Dale Worley