Invention Grant
US08090341B2 Integrated services user part (ISUP) /session initiation protocol (SIP) gateway for unlicensed mobile access (UMA) emergency services call flow 有权
集成业务用户部分(ISUP)/会话发起协议(SIP)网关,用于非授权移动接入(UMA)紧急服务呼叫流

  • Patent Title: Integrated services user part (ISUP) /session initiation protocol (SIP) gateway for unlicensed mobile access (UMA) emergency services call flow
  • Patent Title (中): 集成业务用户部分(ISUP)/会话发起协议(SIP)网关,用于非授权移动接入(UMA)紧急服务呼叫流
  • Application No.: US11487334
    Application Date: 2006-07-17
  • Publication No.: US08090341B2
    Publication Date: 2012-01-03
  • Inventor: Don Mitchell
  • Applicant: Don Mitchell
  • Applicant Address: US MD Annapolis
  • Assignee: TeleCommunication Systems, Inc.
  • Current Assignee: TeleCommunication Systems, Inc.
  • Current Assignee Address: US MD Annapolis
  • Agent William H. Bollman
  • Main IPC: H04M11/04
  • IPC: H04M11/04
Integrated services user part (ISUP) /session initiation protocol (SIP) gateway for unlicensed mobile access (UMA) emergency services call flow
Abstract:
An ISUP/SIP gateway is implemented to encapsulate SS7 location requests from a switched telephone network into an Internet protocol SIP message including one or more location objects. The ISUP/SIP gateway is implemented between a mobile switching center (MSC) and a VoIP positioning center (VPC) to provide support of unlicensed mobile access (UMA) voice over Internet Protocol (VoIP) call routing, e.g., for E9-1-1, 4-1-1, 2-1-1, etc. The disclosed location objects that are encapsulated into a SIP message includes calling party number, called party number, CGI, International Mobile Subscriber Identity (IMSI), mobility indicator, and/or access point MAC address. At the SIP/ISUP gateway, SS7 integrated services user part (ISUP) location request messages are encapsulated within SIP. The SIP encapsulated location request message is then routed over the Internet to a destination VoIP positioning center (VPC).
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