Wireless Emergency Services Protocols Translator Between ANSI-41 and VoIP Emergency Services Protocols

• US 20160007180A1
• Filed: 09/11/2015
• Published: 01/07/2016
• Est. Priority Date: 05/30/2008
• Status: Abandoned Application

• Current Assignee: TeleCommunication Systems Inc (Comtech Telecommunications Corporation)
• Original Assignee: TeleCommunication Systems Inc (Comtech Telecommunications Corporation)
• Inventors: Poremba, Todd, Hines, Gordon J., Burton, Victor
• Application Number:
  US14/851,389
• Publication Number:
  US 20160007180A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• CPC Class Codes: H04M 7/006 Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42
• CPC Class Codes: H04W 4/90 Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
• CPC Class Codes: H04W 76/50 for emergency connections
• CPC Class Codes: H04W 88/16 Gateway arrangements

Abstract

A protocol converter or translator between ANSI-41 ORREQs and VoIP V2 messaging. The protocol converter may alternatively (or also) provide conversion between GMS MAP and VoIP V2 messaging. Interaction of VSPs with a Mobile Positioning Center (MPC) or a Gateway Mobile Location Center (GMLC) is permitted, as is interaction of wireless carriers with a Voice Positioning Center (VPC). In this way existing GMLCs or MPCs may be used to service VoIP 9-1-1 calls. Moreover, operators of Voice Positioning Centers (VPCs) who implement wireless offerings can re-use their existing VPCs to service wireless 9-1-1 calls.

Claims

1-21. -21. (canceled)

22. Apparatus to translate emergency services protocol call setup information from VoIP to ANSI-41 ORREQ, comprising:

a receiver to receive, from a Voice Service Provider (VSP), VoIP signaling;

a CBN inserter to insert a call back number (CBN) into at least one of a mobile directory number (MDN) field and an emergency service routing digits (ESRD) field of an ANSI-41 ORREQ; and

an ESRK inserter to insert an emergency service routing key (ESRK) into a VoIP message;

whereby said VoIP message permits, using said ESRK, setup of an emergency services call with Session Initiation Protocol (SIP).

23. The apparatus to translate emergency services protocol call setup information from VoIP to ANSI-41 ORREQ according to claim 22, wherein:

said call back number (CBN) is treated as emergency services routing digits (ESRD), permitting said ESRD to determine an ESRK based on a provisioned address of an initiating mobile device.

24. The apparatus to translate emergency services protocol call setup information from VoIP to ANSI-41 ORREQ according to claim 22, wherein:

said call back number (CBN) is treated as emergency services routing digits (ESRD), and permits said ESRD to determine digits to select a proper selective router based on said provisioned address of said initiating mobile device.

25. The apparatus to translate emergency services protocol call setup information from VoIP to ANSI-41 ORREQ according to claim 22, wherein:

said call back number (CBN) is treated as emergency services routing digits (ESRD), and permits said ESRD to determine digits to select a proper trunk group based on said provisioned address of said initiating mobile device.

26. A method to translate emergency services protocol call setup information from VoIP to ANSI-41 ORREQ, comprising:

receiving, from a Voice Service Provider (VSP), VoIP signaling;

inserting a call back number (CBN) into a mobile directory number (MDN) field of an ANSI-41 ORREQ; and

inserting an emergency service routing key (ESRK) into a VoIP message;

whereby said VoIP message permits, using said ESRK, setup of an emergency services call over Session Initiation Protocol (SIP).

27. The method to translate emergency services protocol call setup information from VoIP to ANSI-41 ORREQ according to claim 26, further comprising:

determining an ESRK from said MDN based on a provisioned address of an initiating mobile device.

28. The method to translate emergency services protocol call setup information from VoIP to ANSI-41 ORREQ according to claim 26, further comprising:

determining digits, from said MDN, to select a proper selective router based on said provisioned address of said initiating mobile device.

29. The method to translate emergency services protocol call setup information from VoIP to ANSI-41 ORREQ according to claim 26, further comprising:

determining digits, from said MDN, to select a proper trunk group based on said provisioned address of said initiating mobile device.

30. A method to translate emergency services protocol call setup information from VoIP to ANSI-41 ORREQ, comprising:

receiving, from a Voice Service Provider (VSP), VoIP signaling;

inserting a call back number (CBN) into an emergency service routing digits (ESRD) field of an ANSI-41 ORREQ; and

inserting an emergency service routing key (ESRK) into a VoIP message;

whereby said VoIP message permits, using said ESRK, setup of an emergency services call over Session Initiation Protocol (SIP).

31. The method to translate emergency services protocol call setup information from VoIP to ANSI-41 ORREQ according to claim 30, further comprising:

determining an ESRK from said ESRD based on a provisioned address of an initiating mobile device.

32. The method to translate emergency services protocol call setup information from VoIP to ANSI-41 ORREQ according to claim 30, further comprising:

determining digits, from said ESRD, to select a proper selective router based on said provisioned address of said initiating mobile device.

33. The method to translate emergency services protocol call setup information from VoIP to ANSI-41 ORREQ according to claim 30, further comprising:

determining digits, from said ESRD, to select a proper trunk group based on said provisioned address of said initiating mobile device.