Wireless emergency services protocols translator between ansi-41 and VoIP emergency services protocols
First Claim
1. Apparatus to translate emergency services protocol call setup information from VoIP V2 to ANSI-41 ORREQ, comprising:
- a receiver to receive VoIP V2 signaling from a Voice Service Provider (VSP);
a CBN inserter to insert a call back number (CBN) into both 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) and, if needed, to insert digits to determine a selective router and/or trunk, into up to 20 digits of a VoIP V2 message;
whereby use of said digits received in said VoIP V2 message permit setup of an emergency services call over Session Initiation Protocol (SIP) using a wireless ESRK.
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0 Petitions
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 GSM 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 VoIP Positioning Center (VPC). In this way existing GMLCs or MPCs may be used to service VoIP 9-1-1 calls. Moreover, operators of VoIP Positioning Centers (VPCs) who implement wireless offerings can re-use their existing VPCs to service wireless 9-1-1 calls.
101 Citations
21 Claims
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1. Apparatus to translate emergency services protocol call setup information from VoIP V2 to ANSI-41 ORREQ, comprising:
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a receiver to receive VoIP V2 signaling from a Voice Service Provider (VSP); a CBN inserter to insert a call back number (CBN) into both 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) and, if needed, to insert digits to determine a selective router and/or trunk, into up to 20 digits of a VoIP V2 message; whereby use of said digits received in said VoIP V2 message permit setup of an emergency services call over Session Initiation Protocol (SIP) using a wireless ESRK. - View Dependent Claims (2, 3)
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4. Apparatus to translate emergency services protocol call setup information from VoIP V2 to GSM MAP SLR, comprising:
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a receiver to receive VoIP V2 signaling from a Voice Service Provider (VSP); a CBN inserter to insert a call back number (CBN) into both an International Mobile Subscriber Identity (IMSI) field and an na-ESRD field of a GSM MAP SLR; and an ESRK inserter to insert an emergency service routing key (ESRK) and, if needed, digits to determine a selective router and/or trunk, into up to 20 digits of a VoIP V2 message; whereby use of said digits received in said VoIP V2 message permit setup of an emergency services call over Session Initiation Protocol (SIP) using a wireless ESRK. - View Dependent Claims (5, 6, 7)
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8. Apparatus to translate emergency services protocol call setup information from ANSI-41 ORREQ to VoIP V2, comprising:
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a receiver to receive an ANSI-41 ORREQ containing a call back number (CBN) and emergency service routing digits (ESRD) from a mobile switching (MSC); a converter to convert said CBN and ESRD to a VoIP V2 request; a transmitter to send said VoIP V2 request to a VoIP positioning center (VPC); and a VoIP receiver to receive back said VoIP V2 request including an emergency service query key (ESQK) and an emergency service routing number (ESRN) returned by a VoIP positioning center (VPC), said VoIP V2 request having said ESQK and said ESRN inserted therein in a plurality of designated fields; whereby use of said ORREQ permits setup of an emergency services call over ISDN User Part (ISUP) or Multi-Frequency (MF) signaling. - View Dependent Claims (9)
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10. Apparatus to translate emergency services protocol call setup information from GSM MAP SLR to VoIP V2, comprising:
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a receiver to receive a GSM MAP SLR containing a call back number (CBN) and emergency service routing digits (ESRD) from a mobile switching (MSC); a converter to convert said CBN and ESRD to a VoIP V2 request; a transmitter to send said VoIP V2 request to a VoIP positioning center (VPC); a VoIP receiver to receive back said VoIP V2 request including an emergency service query key (ESQK) and an emergency service routing number (ESRN) returned by a VoIP positioning center (VPC) inserted therein; and converting said received back VoIP V2 request to an SLR with an na-ESRK with said ESQK and a last 7-digits of said ESRN; whereby use of said SLR permits setup of an emergency services call over ISDN User Part (ISUP) or Multi-Frequency (MF) signaling. - View Dependent Claims (11)
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12. A method to translate emergency services protocol call setup information from VoIP V2 to ANSI-41 ORREQ, comprising:
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receiving VoIP V2 signaling from a Voice Service Provider (VSP); inserting a call back number (CBN) into both 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) and, if needed, digits to determine a selective router and/or trunk, into up to 20 digits of a VoIP V2 message; whereby use of said digits received in said VoIP V2 message permit setup of an emergency services call over Session Initiation Protocol (SIP) using a wireless ESRK. - View Dependent Claims (13, 14)
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15. A method to translate emergency services protocol call setup information from VoIP V2 to GSM MAP SLR, comprising:
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receiving VoIP V2 signaling from a Voice Service Provider (VSP); inserting a call back number (CBN) into both an International Mobile Subscriber Identity (IMSI) field and an na-ESRD field of a GSM MAP SLR; and inserting an emergency service routing key (ESRK) and, if needed, digits to determine a selective router and/or trunk, into up to 20 digits of a VoIP V2 message; whereby use of said digits received in said VoIP V2 message permit setup of an emergency services call over Session Initiation Protocol (SIP) using a wireless ESRK. - View Dependent Claims (16, 17, 18)
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19. A method to translate emergency services protocol call setup information from ANSI-41 ORREQ to VoIP V2, comprising:
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receiving an ANSI-41 ORREQ containing a call back number (CBN) and emergency service routing digits (ESRD) from a mobile switching center (MSC); converting said CBN and ESRD to a VoIP V2 request; sending said VoIP V2 request to a VoIP positioning center (VPC); and receiving back said VoIP V2 request including an emergency service query key (ESQK) and an emergency service routing number (ESRN) returned by a VoIP positioning center (VPC), said VoIP V2 request having said ESQK and said ESRN inserted therein in a plurality of designated fields; whereby use of said ORREQ permits setup of an emergency services call over ISDN User Part (ISUP) or Multi-Frequency (MF) signaling. - View Dependent Claims (20)
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21. A method to translate emergency services protocol call setup information from GSM MAP SLR to VoIP V2, comprising:
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receiving a GSM MAP SLR containing a call back number (CBN) and emergency service routing digits (ESRD) from a mobile switching center (MSC); converting said CBN and ESRD to a VoIP V2 request; sending said VoIP V2 request to a VoIP positioning center (VPC); receiving back said VoIP V2 request including an emergency service query key (ESQK) and an emergency service routing number (ESRN) returned by a VoIP positioning center (VPC) inserted therein; and converting said received back VoIP V2 request to an SLR with an na-ESRK with said ESQK and a last 7-digits of said ESRN; whereby use of said SLR permits setup of an emergency services call over ISDN User Part (ISUP) or Multi-Frequency (MF) signaling.
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Specification