Wireless Emergency Services Protocols Translator Between ANSI-41 and VoIP Emergency Services Protocols
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Accused Products
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.
13 Citations
30 Claims
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1-21. -21. (canceled)
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22. Apparatus to translate emergency services protocol call setup information from VoIP to ANSI-41 ORREQ, comprising:
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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). - View Dependent Claims (23, 24)
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25. Apparatus to translate emergency services protocol call setup information from GSM MAP SLR to VoIP, comprising:
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a receiver to receive, from a mobile switching (MSC), a GSM MAP SLR containing at least one of a call back number (CBN) and emergency service routing digits (ESRD); a converter to convert said at least one of a CBN and an ESRD to a VoIP request; a transmitter to send, to a VoIP positioning center (VPC), said VoIP request; a VoIP receiver to receive, from said VoIP positioning center (VPC), said VoIP request including at least one of an emergency service query key (ESQK) and an emergency service routing number (ESRN) inserted therein; and converting, with said at least one of an ESQK and an ESRN, said received VoIP request to an SLR with an na-ESRK; whereby said SLR permits setup of an emergency services call over at least one of an ISDN User Part (ISUP) and Multi-Frequency (MF) signaling. - View Dependent Claims (26)
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27. A method to translate emergency services protocol call setup information from VoIP to ANSI-41 ORREQ, comprising:
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receiving, from a Voice Service Provider (VSP), VoIP signaling; inserting 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 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). - View Dependent Claims (28, 29)
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30. A method to translate emergency services protocol call setup information from GSM MAP SLR to VoIP, comprising:
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receiving, from a mobile switching center (MSC), a GSM MAP SLR containing at least one of a call back number (CBN) and emergency service routing digits (ESRD); converting said at least one of a CBN and an ESRD to a VoIP request; sending, to a VoIP positioning center (VPC), said VoIP request; receiving, from said VoIP positioning center (VPC), said VoIP request including at least one of an emergency service query key (ESQK) and an emergency service routing number (ESRN) inserted therein; and converting, with said at least one of an ESQK and an ESRN, said received back VoIP request to an SLR with an na-ESRK; whereby said SLR permits setup of an emergency services call over at least one of ISDN User Part (ISUP) and Multi-Frequency (MF) signaling.
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Specification