Patents by Inventor Nhan Thanh Tran

Nhan Thanh Tran 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: 8942709
    Abstract: Systems and methods provide a single E.164 number for voice and data call redirection and telephony services such as caller identification, regardless of in which type of network a dual mode mobile device operates. When the dual mode device registers and is active in a GSM network, temporary routing and status updates are triggered and resultant information is maintained in both networks. A mobile terminated call is routed through an enterprise WLAN with call control within the enterprise being handled by SIP or H.323 signaling, and the call is redirected to the mobile device in the GSM network, where call control is assumed by the SS7 network. Services are provided using the protocols native to the active network, and the single E.164 is used consistently along with or lieu of the temporary routing information for subscriber identity specific functions, such as caller identification and voice mail.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: January 27, 2015
    Assignee: Shoretel, Inc.
    Inventors: Thomas Wayne Bonner, Nhan Thanh Tran, Mark Enzmann, Simon Richardson
  • Patent number: 8599866
    Abstract: Systems and methods for a call flow for a mobile directory number (MDN) from a first phone to a second phone which has been intra-service ported. The system includes: a first switch of a first technology; a second switch of a second technology; and a local number portability database (LNP). The LNP stores local routing numbers (LRN) associated with the MDN. The WLNP system determines whether a call, from the first phone, is received by a public switched telephone network (PSTN) or the first switch. If the call is received by the PSTN with the LRN, the call is routed to the second switch based on the LRN. If the call is received by the first switch without the LRN, the first switch queries the LNP for the LRN and the call is routed intra-carrier to the second switch.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: December 3, 2013
    Assignee: AT&T Mobility II LLC
    Inventors: Nhan Thanh Tran, Charles Jamile Hamadi
  • Publication number: 20130084876
    Abstract: Systems and methods for a call flow for a mobile directory number (MDN) from a first phone to a second phone which has been intra-service ported. The system includes: a first switch of a first technology; a second switch of a second technology; and a local number portability database (LNP). The LNP stores local routing numbers (LRN) associated with the MDN. The WLNP system determines whether a call, from the first phone, is received by a public switched telephone network (PSTN) or the first switch. If the call is received by the PSTN with the LRN, the call is routed to the second switch based on the LRN. If the call is received by the first switch without the LRN, the first switch queries the LNP for the LRN and the call is routed intra-carrier to the second switch.
    Type: Application
    Filed: August 28, 2012
    Publication date: April 4, 2013
    Inventors: Nhan Thanh Tran, Charles Jamile Hamadi
  • Patent number: 8254398
    Abstract: Systems and methods for a call flow for a mobile directory number (MDN) from a first phone to a second phone which has been intra-service ported. The system includes: a first switch of a first technology; a second switch of a second technology; and a local number portability database (LNP). The LNP stores local routing numbers (LRN) associated with the MDN. The WLNP system determines whether a call, from the first phone, is received by a public switched telephone network (PSTN) or the first switch. If the call is received by the PSTN with the LRN, the call is routed to the second switch based on the LRN. If the call is received by the first switch without the LRN, the first switch queries the LNP for the LRN and the call is routed intra-carrier to the second switch.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: August 28, 2012
    Assignee: AT&T Mobility II LLC
    Inventors: Nhan Thanh Tran, Charles Jamile Hamadi
  • Patent number: 7929683
    Abstract: To route calls in a wireless network in which an NPA split has been implemented, an intelligent router mediates NPA mismatches by modifying requests for routing information according to a rule set based on the update status of the HLR or other network element to which the routing requests are directed. According to whether the intended network element has been updated to recognize a new NPA in the directory number, the appropriate version of the directory number is included in the routing request, regardless of whether the old or the new version of the directory was actually dialed. In some embodiments, the intelligent router first modifies the routing request to include the new version of the directory number, and upon receiving an error from the intended element, resends the request with the old version. Receiving an error may prompt the intelligent router to trigger an update of the intended element.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: April 19, 2011
    Assignee: AT&T Mobility II LLC
    Inventors: Nhan Thanh Tran, John Thomas Hursey, Alan Johns
  • Publication number: 20100151867
    Abstract: Systems and methods for a call flow for a mobile directory number (MDN) from a first phone to a second phone which has been intra-service ported. The system includes: a first switch of a first technology; a second switch of a second technology; and a local number portability database (LNP). The LNP stores local routing numbers (LRN) associated with the MDN. The WLNP system determines whether a call, from the first phone, is received by a public switched telephone network (PSTN) or the first switch. If the call is received by the PSTN with the LRN, the call is routed to the second switch based on the LRN. If the call is received by the first switch without the LRN, the first switch queries the LNP for the LRN and the call is routed intra-carrier to the second switch.
    Type: Application
    Filed: November 13, 2009
    Publication date: June 17, 2010
    Inventors: Nhan Thanh Tran, Charles Jamile Hamadi
  • Patent number: 7711351
    Abstract: Advice of charge information is provided utilizing the session initiation protocol (SIP) in an Internet protocol multimedia subsystem without utilizing an application server. The advice of charge message is provided to a user via the serving call/session control function and the home subscription server. When a request for a service is received by the serving call/session control function, the state of a binary, Boolean flag associated with the originator of the request is analyzed. Depending upon the state of the flag, either the request is routed to its intended destination, or an advice of charge message is routed to originating user, advising the user of the charge for the requested service. If the user accepts the charge, the serving call/session control function transmits the request for routing to the intended destination, and the flag is toggled. If the user declines the charge, the call is ended.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: May 4, 2010
    Assignee: Cingular Wireless II LLC
    Inventors: Matthew Stafford, Nhan Thanh Tran
  • Publication number: 20100105379
    Abstract: Systems and methods provide a single E.164 number for voice and data call redirection and telephony services such as caller identification, regardless of in which type of network a dual mode mobile device operates. When the dual mode device registers and is active in a GSM network, temporary routing and status updates are triggered and resultant information is maintained in both networks. A mobile terminated call is routed through an enterprise WLAN with call control within the enterprise being handled by SIP or H.323 signaling, and the call is redirected to the mobile device in the GSM network, where call control is assumed by the SS7 network. Services are provided using the protocols native to the active network, and the single E.164 is used consistently along with or lieu of the temporary routing information for subscriber identity specific functions, such as caller identification and voice mail.
    Type: Application
    Filed: December 29, 2009
    Publication date: April 29, 2010
    Inventors: Thomas Wayne Bonner, Nhan Thanh Tran, Mark Enzmann, Simon Richardson
  • Patent number: 7664495
    Abstract: Systems and methods provide a single E.164 number for voice and data call redirection and telephony services such as caller identification, regardless of in which type of network a dual mode mobile device operates. When the dual mode device registers and is active in a GSM network, temporary routing and status updates are triggered and resultant information is maintained in both networks. A mobile terminated call is routed through an enterprise WLAN with call control within the enterprise being handled by SIP or H.323 signaling, and the call is redirected to the mobile device in the GSM network, where call control is assumed by the SS7 network. Services are provided using the protocols native to the active network, and the single E.164 is used consistently along with or lieu of the temporary routing information for subscriber identity specific functions, such as caller identification and voice mail.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: February 16, 2010
    Assignee: AT&T Mobility II LLC
    Inventors: Thomas Wayne Bonner, Nhan Thanh Tran, Mark Enzmann, Simon Richardson
  • Patent number: 7620034
    Abstract: Systems and methods for a call flow for a mobile directory number (MDN) from a first phone to a second phone which has been intra-service ported. The system includes: a first switch of a first technology; a second switch of a second technology; and a local number portability database (LNP). The LNP stores local routing numbers (LRN) associated with the MDN. The WLNP system determines whether a call, from the first phone, is received by a public switched telephone network (PSTN) or the first switch. If the call is received by the PSTN with the LRN, the call is routed to the second switch based on the LRN. If the call is received by the first switch without the LRN, the first switch queries the LNP for the LRN and the call is routed intra-carrier to the second switch.
    Type: Grant
    Filed: August 2, 2004
    Date of Patent: November 17, 2009
    Assignee: AT&T Mobility II LLC
    Inventors: Nhan Thanh Tran, Charles Jamile Hamadi