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Next Generation 112 Long Term Definition EENA NG112 Document Next Generation 112 Long Term Definition Title: Long Term Definition Version: 1.1 Code: LTD_v1.1.doc Revision Date: 03-06-2013 1 EENA Next Generation 112 – Long Term Definition EENA asbl [email protected] - www.EENA.org is a non-for-profit association Contributors The National Emergency Number Association (NENA) VoIP/Packet Technical Committee Long Term Definition Working Group developed the “Detailed Functional and Interface Specification for the NENA i3 Solution – Stage 3” standard. The Next Generation 112 Long Term Definition document is based on the NENA i3 Stage 3 technical specification. EENA therefore recognizes the work done by the members of NENA. The following members of the Next Generation 112 Technical Committee have contributed to this release of the document: Name Company Andrei Grososiu Special Telecommunications Service – RO Cristina Lumbreras EENA Hannes Tschofenig Nokia Siemens Networks / EENA Helmut Wittmann Siemens Enterprise Communications Gunnar Hellström Omnitor John Medland BT Brian Rosen Neustar Emmanuel Buu IVES Laurent Faucillon France Telecom/Orange Randall Gellens Qualcomm Massimo Cristaldi IES Solutions Ian Colville ACULAB Andrew Hutton Siemens Enterprise Communications 2 EENA Next Generation 112 – Long Term Definition EENA asbl [email protected] - www.EENA.org is a non-for-profit association TABLE OF CONTENTS 1 INTRODUCTION ........................................................................................................................................... 11 1.1 OVERVIEW ......................................................................................................................................................... 11 1.2 OPERATIONAL IMPACTS SUMMARY ................................................................................................................. 14 1.3 SECURITY IMPACTS SUMMARY ........................................................................................................................ 14 2 RECOMMENDATION FOR FUTURE WORK ..................................................................................... 15 3 TERMINOLOGY AND ACRONYMS ....................................................................................................... 16 4 FUNCTIONAL ELEMENTS ........................................................................................................................ 31 4.1 EMERGENCY SERVICES IP NETWORKS ........................................................................................................... 32 4.2 BORDER CONTROL FUNCTION (BCF) ............................................................................................................ 34 4.2.1 Functional Description ..................................................................................................................... 34 4.2.2 Interface Description ........................................................................................................................ 37 4.2.3 Roles and Responsibilities .............................................................................................................. 38 4.2.4 Operational Considerations ............................................................................................................ 39 4.3 EMERGENCY SERVICE ROUTING PROXY (ESRP) .......................................................................................... 39 4.3.1 Functional Description ..................................................................................................................... 39 4.3.2 Interface Description ........................................................................................................................ 50 4.3.3 Data Structures .................................................................................................................................. 53 4.3.4 Policy Elements ................................................................................................................................... 53 4.3.5 Provisioning .......................................................................................................................................... 53 4.3.6 Roles and Responsibilities .............................................................................................................. 54 4.3.7 Operational Considerations ............................................................................................................ 54 4.4 EMERGENCY CALL ROUTING FUNCTION (ECRF) .......................................................................................... 54 4.4.1 Functional Description ..................................................................................................................... 54 4.4.2 Interface Description ........................................................................................................................ 55 4.4.3 Data Structures .................................................................................................................................. 60 4.4.4 Recursive and Iterative Query Resolution ............................................................................... 67 4.4.5 Coalescing Data and Gap/Overlap Processing ....................................................................... 67 4.4.6 Replicas .................................................................................................................................................. 69 4.4.7 Provisioning .......................................................................................................................................... 69 4.4.8 Roles and Responsibilities .............................................................................................................. 70 3 EENA Next Generation 112 – Long Term Definition EENA asbl [email protected] - www.EENA.org is a non-for-profit association 4.4.9 Operational Considerations ............................................................................................................ 70 4.5 LOCATION VALIDATION FUNCTION ................................................................................................................. 71 4.5.1 Functional Description ..................................................................................................................... 71 4.5.2 Interface Description ........................................................................................................................ 72 4.5.3 Interface Description ........................................................................................................................ 73 4.5.4 Data Structures .................................................................................................................................. 77 4.5.5 Roles and Responsibilities .............................................................................................................. 78 4.5.6 Operational Considerations ............................................................................................................ 78 4.6 SPATIAL INFORMATION FUNCTION ................................................................................................................. 79 4.6.1 Layers ..................................................................................................................................................... 80 4.6.2 Geocode Service (GCS) ................................................................................................................... 80 4.6.3 Operational Considerations ............................................................................................................ 82 4.7 PSAP ................................................................................................................................................................. 82 4.7.1 SIP Call interface ............................................................................................................................... 82 4.7.2 LoST interface ..................................................................................................................................... 83 4.7.3 LIS Interfaces ...................................................................................................................................... 83 4.7.4 Bridge Interface .................................................................................................................................. 84 4.7.5 ElementState ....................................................................................................................................... 84 4.7.6 SIF ........................................................................................................................................................... 84 4.7.7 Logging Service .................................................................................................................................. 84 4.7.8 Security Posture ................................................................................................................................. 84 4.7.9 Policy ....................................................................................................................................................... 84 4.7.10 Additional Data dereference ....................................................................................................... 85 4.7.11 Time Interface .................................................................................................................................
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