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EENA Next Generation 112 Long Term Definition
EENA asbl
[email protected] - www.EENA.org
is a non-for-profit association
EENA NG112 Document
Next Generation 112
Long Term Definition
Title: Long Term Definition
Version: 1.0
Code: 2012_04_11_LTD_v1.0.doc
Revision Date: 11-04-2012
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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 Hellstrm 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
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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 ............................................................................................. 10
1.1 OVERVIEW........................................................................................................... 10
1.2 OPERATIONAL IMPACTS SUMMARY ............................................................................... 13
1.3 SECURITY IMPACTS SUMMARY .................................................................................... 13
2 RECOMMENDATION FOR FUTURE WORK ........................................................ 14
3 TERMINOLOGY ............................................................................................... 16
4 FUNCTIONAL ELEMENTS ................................................................................ 30
4.1 EMERGENCY SERVICES IP NETWORKS ........................................................................... 31
4.2 BORDER CONTROL FUNCTION (BCF) ............................................................................ 32
4.2.1 Functional Description .................................................................................. 33
4.2.2 Interface Description ................................................................................... 36
4.2.3 Roles and Responsibilities ............................................................................. 37
4.2.4 Operational Considerations ........................................................................... 37
4.3 EMERGENCY SERVICE ROUTING PROXY (ESRP) ............................................................... 38
4.3.1 Functional Description .................................................................................. 38
4.3.2 Interface Description ................................................................................... 49
4.3.3 Data Structures .......................................................................................... 52
4.3.4 Policy Elements ........................................................................................... 52
4.3.5 Provisioning ................................................................................................ 52
4.3.6 Roles and Responsibilities ............................................................................. 53
4.3.7 Operational Considerations ........................................................................... 53
4.4 EMERGENCY CALL ROUTING FUNCTION (ECRF) ............................................................... 53
4.4.1 Functional Description .................................................................................. 53
4.4.2 Interface Description ................................................................................... 54
4.4.3 Data Structures .......................................................................................... 59
4.4.4 Recursive and Iterative Query Resolution ....................................................... 65
4.4.5 Coalescing Data and Gap/Overlap Processing .................................................. 65
4.4.6 Replicas ..................................................................................................... 67
4.4.7 Provisioning ................................................................................................ 67
4.4.8 Roles and Responsibilities ............................................................................. 68
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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 ........................................................................... 68
4.5 LOCATION VALIDATION FUNCTION ............................................................................... 68
4.5.1 Functional Description .................................................................................. 69
4.5.2 Interface Description ................................................................................... 70
4.5.3 Interface Description ................................................................................... 71
4.5.4 Data Structures .......................................................................................... 75
4.5.5 Roles and Responsibilities ............................................................................. 76
4.5.6 Operational Considerations ........................................................................... 76
4.6 SPATIAL INFORMATION FUNCTION ............................................................................... 77
4.6.1 Layers ....................................................................................................... 78
4.6.2 Geocode Service (GCS) ................................................................................ 78
4.6.3 Operational Considerations ........................................................................... 80
4.7 PSAP ................................................................................................................ 80
4.7.1 SIP Call interface......................................................................................... 80
4.7.2 LoST interface............................................................................................. 81
4.7.3 LIS Interfaces ............................................................................................. 81
4.7.4 Bridge Interface .......................................................................................... 82
4.7.5 ElementState .............................................................................................. 82
4.7.6 SIF ............................................................................................................ 82
4.7.7 Logging Service .......................................................................................... 82
4.7.8 Security Posture .......................................................................................... 82
4.7.9 Policy ......................................................................................................... 82
4.7.10 Additional Data dereference ...................................................................... 83
4.7.11 Time Interface ......................................................................................... 83
4.7.12 Test Call ................................................................................................. 83
4.7.13 Call Diversion .......................................................................................... 83
4.7.14 Incidents ................................................................................................ 83
4.8 BRIDGING ........................................................................................................... 84
4.8.1 Bridge Call Flow .......................................................................................... 87
4.8.2 Passing data to Agencies via bridging ............................................................ 95
4.9 TRANSFER INVOLVING CALLING DEVICES THAT DO NOT SUPPORT REPLACES ............................. 96
4.9.1 B2BUA in the Border Control Function ............................................................ 96
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EENA Next Generation 112 Long Term Definition
EENA asbl
[email protected] - www.EENA.org
is a non-for-profit association
4.9.2 Bridging at the PSAP Using Third Party Call Control in the Call Taker User
Agent 101
4.9.3 Answer all calls at a bridge ......................................................................... 109
4.9.4 Recommendations ............................
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