What Makes It Work?
A Panel Discussion on
Next Generation 9-1-1
Version 1.0 (June, 2014)
Panel Members
 Bob Currier, ENP – Intrado, Moderator
 Jenna Green - Sprint
 Bob Gojanovich, ENP – TeleCommunication Systems
 April Heinze, ENP – Eaton County (MI) Central Dispatch
 Pat Lustig, ENP – State of Oregon OEM
 Marc Berryman, ENP – Mission Critical Partners
 Nate Wilcox - Emergicom
Agenda
 Originating Service Providers
 NG9-1-1 Core Systems
 PSAP Equipment and Software
 Databases and Call Routing
 Security
Q&A
Network Landscape
4
Subscriber Impact
 Any number of device types
 Myriad of access options
 Subscriber demographics
 9-1-1 Access EXPECTATIONS!
5
Communication
Service Provider
 May be more than one
 Transport of “call”
 Data Management
 Location
 Subscriber Information
 Inter-Connect with ESINet(s)
6
CSP Responsibilities
 Provisioning & Data Management
 LIS – Location Information Server
 CIDB - Call Information Database
 PIDF-LO - Presence Information Data Format –
Location Objects
7
9-1-1 Service Provider
9-1-1 SSP
 Deliver calls to PSAP
 Selective Routing
 Connectivity to ESInet
8
Understanding the System of Systems
NG9-1-1 CORE FUNCTIONS
9
NG9-1-1 Ecosystem
NG9-1-1 Core Services
ESInet
CIDB
Next Generation 9-1-1
LIS
Originating
Networks
VoIP
GIS
GIS Data
Management
LVF
GIS
GIS
Discrepancies
BCF
SIF
ESInet
Access
Control
Enterprise
ECRF
Cellular
BCF Admin
PRF
BCF
Legacy Network Gateway
PSTN
ESRP
Legacy SR
Gateway
Legacy E9-1-1
Networks
Legacy
Selective
Router
System
Logging
Legacy
PSAP
Gateway
This diagram is simplified for illustrative purposes.
Legacy
PSAPs
NG9-1-1
PSAP
How NG9-1-1 Operates
Build Me First!
Wireline COs
Wireless MSCs
VoIP
Future Multimedia
Core NG9-1-1
System
ECRF, ESRP, LVF, GIS,
Policy Mgmt, Process
Mgmt
Initial Deployment: Transitional LNGs
Later: Direct IP interfaces
County A and
17 PSAPs
County B and 5
PSAPs
County C and X
PSAPs
Could be any
combination of
state, regional
or county PSAPs
12
PSAP Deployment Options
PSAP equipment is IP or NG9-1-1 capable before core
NG9-1-1 is installed
PSAP equipment or software upgraded when core
NG9-1-1 is installed
Multiple PSAPs deploy a hosted (shared) call
handling system
PSAPs use LPGs to interface to core NG9-1-1 system,
operating temporarily as `legacy PSAPs’
Any combination of the above
13
End-to-End IP - Timeframes
 Improved services are timeframe interdependent between carriers, other
originating providers and NG9-1-1
Carriers
Carriers
Public Safety
IP interface
Implement IMS
Multimedia ES
Implement MMES
Internet Providers
Transition to NG9-1-1
IP based Multimedia ?
Soon after wide NG9-1-1 availability
Now 2014 2015 2016 2017 2018 2019 2020 
14
Public Safety’s Goal
RELIABILITY
SECURITY
ROBUSTNESS
MAINTAINABILITY
ACCURACY
SCALABILITY
Policy Examples
 Outage
 Call Flow
 Call Overload
 Maintenance
 Type of Call, Caller
 Others…..
Operational
 Coordination-Cooperation among agencies
 System Administration
 Methods and Procedures
 Security
 Training
Education, Messaging
 We are evolving to improve future 9-1-1
 Better 9-1-1 service in long term?
 Meet Citizen’s Expectations
Understand the System
Next Generation 9-1-1
Originating
Networks
VoIP
SIF
GIS
LVF
BCF
Enterprise
GIS
GIS Data
Management
ESInet
GIS
GIS
LIS
ECRF
Cellular
PSTN
PRF
BCF
E9-1-1
Gateway
ESRP
SR
Gateway
Legacy E9-1-1
Networks
Legacy
Selective
Router
Legacy
PSAP
Gateway
Legacy
PSAPs
This figure is simplified for illustrative purposes
i3
PSAP
Where are the Databases?
2
Originating
Networks
GIS
LVF
1
BCF
5
ESInet
PSTN
GIS
GIS
4
LIS
ECRF
Cellular
GIS
GIS Data
Management
SIF
VoIP
Enterprise
3
6
Policy Routing
Function (PRF)
7
ESRP
Policy
Store
5
BCF
NG9-1-1
PSAP
Basic NG9-1-1 Call Flow
ESInet
ECRF
LIS
dial 9-1-1
BCF
Voice
Text
Video
NENA Copyright 2014
ESRP
BCF
LIS
Location Information Server
• Location always provided by the LIS
• Location can be civic address or geographic coordinate
• Location by value or by reference
• Locations for wireline may use existing ALI
• Exceeds today's Location needs
LIS
NENA Copyright 2014
LIS validates against the LVF
The locations in the LIS are validated against the
provisioned GIS data in the Location
Validation Function – the LVF
• LVF – The Location Validation Function
LVF
NENA Copyright 2914
LVF
Location Validation Function
• The Location Validation
Function (LVF) validates the
Location stored in the Location
Information Server (LIS)
• LVF uses Local 9-1-1 Authority
GIS data for location validation
•
Gives Local 9-1-1 Authority
total control of their data
Location
Query
LIS
NENA Copyright 2014
LVF
Location
Response
BCF
Border Control Function
•
•
•
•
Security subsystem at edge of ESInet
All Calls and Data go through the BCF
Connects to the Internet (which is why it is needed)
Recommend at every point of ingress and egress
BCF
NENA Copyright 2014
BCF
Border Control Function
• Firewall functions
• Media Anchoring
•
•
•
•
•
Signaling protocol
Protocol Translation
Interworking
Codec negotiation
Support for emergency call transfer
• Access Management
• Admission Control
NENA Copyright 2014
BCF
NG9-1-1 Call
flow
1) LIS location sent to ECRF:
354 W 34th St, Houston, TX
2) ECRF finds address point of:
354 W 34th St, Houston, TX
3) ECRF determines Location
is within the Houston PSAP
4) ECRF sends Houston PSAP
URI to the ESRP
psap.houston.tx.us
ECRF
Location + PSAP URI
Location + Service URN
Location + Service
Identifier
dial 9-1-1
PIDF-LO + URN:
urn:service:sos
Voice
Text
Video
NENA Copyright 2014
PIDF-LO + PSAP URI
sos@psap.houston.tx.us
ESRP
ECRF
Emergency Call Routing Function
• Same 9-1-1 Authority GIS Data as used in the Location
Validation Function (LVF)
• GIS data uses call location to Route “calls” to correct PSAP
• You send it location (in civic or geo form) and it gives you
back a URI of the PSAP to forward the call to
ESRP
Emergency Services Routing Proxy
• Gets a location, queries ECRF
• Uses URI from ECRF to send call to the correct
PSAP
 Applies a “Policy Routing Function” – Policy
Based Routing
 Policy can Override PSAP URI provided by
ECRF
Policy
Routing
Function
PSAP B
ECRF
PRF
Location + Service
Identifier
dial 9-1-1
PIDF-LO +
URI: urn:service:sos
Voice
Text
Video
NENA Copyright 2014
ESRP
PSAP A
Policy Examples
 Outage
 Call Flow
 Call Overload
 Maintenance
 Type of Call, Caller
 Others…..
Security for an i3 NG9-1-1 ESInet
• Security Credentials allows Interoperability
– LIS uses ESRP and PSAP credentials for location dereference
– ECRF / LVF accepts client credentials for routing / validation
– PSAP operator certificate-based on authorization and
access
• Secure Communication and Privacy
– Encryption of Data for Secure Storage and Transport
– Protection from External and Internal Threats
– Provides a security framework to protect NG9-1-1 systems
NENA Copyright 2013
Security Objectives

Develop a comprehensive Security Framework for NENA

Develop the minimum appropriate Security Standards for
each component or area of the 9-1-1 system
 (i.e. PSAP/CPE, Network, Providers, Database,
etc)

Work Cooperatively with other Committees and workgroups
and outside agencies as necessary
 Existing systems

Consider the use of existing information and standards when
available and appropriate.
 (i.e. DHS, NIST, ANSI, NLETS, etc.)