Intrado Proprietary
NENA i3 and Next Generation 9-1-1 Florida 911 Coordinator’s Spring 2015 Meeting May - 2015 Mike Nelson Intrado, Senior Technical Officer
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Selective Routers were designed In the ’70’s to route wireline calls.
Wireline calls are < 27% of
9-1-1 call volume.
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Emergency Services Ecosystem
• Integrated services across the extended situational timeframe • Expanded set of collaborating participants and role players • Contextual awareness with automated services and what may seem
like disparate information
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Legacy Selective Router 9-1-1 Call Flow
1. Wireline (ANI) or Wireless (pANI) 9-1-1 Call 2. ESN
determined by ANI (or pANI)
3. Modified Analog TDM CAMA trunks
Call Taker 9-1-1 Caller
Originating Network
Legacy Telephone Network PSAP
PSAP receives legacy 9-1-1 call and “bids” ALI
4. ALI Bid or Rebid For Wireless: Location Updates
MSCLDE
5. For Wireless Calls: interface carriers network, VoIP follows similar Dynamic ALI retrieval
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What is Next Generation 9-1-1?
Dedicated Public Safety Grade IP Network (ESInet)
Based on Caller’s Location
Delivering Calls, Data and
Advanced Services
Integrated Operating Environment
Interactions across domains with intelligent
clients implementing advanced services.
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i3 Foundation Elements
• IP Network – ESInet – Addressing, security, interconnection, management
• Geographic Data – Location Validation, – Jurisdictional boundaries
• Location Information – Fundamental to target architecture
• IP Enabled Functional Elements – Changes 9-1-1 call processing techniques
and system interfaces
• Additional Data – Call, Caller and Event
• Operating & Business Environment – Funding situations vary across the United States – End state is dependent on Telecommunication Industry changes – Ultimately changes call data (location) provisioning responsibilities
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Geographic and Address Data
• Coordination of Address and Geographic Data – GIS Coordinators (e.g., County) – Postal Addresses (Civic or textual) – Call Taking and Dispatch (CAD) – ALI and MSAG (transitional) – Enhanced Data Services
• Routing Data – GIS Polygons (with Latitude and Longitude) – Equivalent (or better) results to current Selective Router database
• Public Internet Interconnection – ECRF / Forest Guide – Hierarchical Routing Rules
GIS with 9-1-1 attributes GIS data coordination is challenging Need “dispatch-able” addresses Different GIS data can cause
confusion across applications
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i3 Protocols
Call Taker
SIP (PIDF-LO)
GIS Boundaries, Policy Rules, ESInet
Data Management Data Management Location, Subscriber
SIP (PIDF-LO)
LoST
LoST
HTTPs
LoST HELD
HELD LoST
9-1-1 Caller
Terminating ESRP
Services
Originating Network ESInet PSAP
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i3 Call Flow- Location by Value
1. UA Queries for Location
2. UA queries for first route
3. INVITE (PIDF-LO)
4. ESRP queries for routing
5. INVITE (PIDF-LO)
Call Taker 9-1-1 Caller
Originating Network ESInet PSAP
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i3 Call Flow- Location by Reference
1. UA Queries for Location and Obtains Reference
2. INVITE (Loc Ref)
4. ESRP queries for routing
3. ESRP dereferences location
5. INVITE (PIDF-LO, Ref)
Call Taker 9-1-1 Caller
Originating Network ESInet PSAP
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Post Call Setup Interactions
Any Validated User Agent
HTTPs
HELD
LoST
PSAP dereferences location
Originating Network ESInet PSAP
Services and Information
SIP
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i3 Dilemma
What’s Possible Today
versus
What’s Forward Looking
Transitional Models
Deploy Foundations
that Prepare for the Future
Purist versus Practical Paths to a NG9-1-1
Environment
Deployments today that are Solving Real
Problems
Environments that can deploy
enhanced information processing
services
There is much work to prepare for an i3 model
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Different Methods of Location Delivery – Wireline Call
1. Traditional 9-1-1 Call (ANI)
2. Retrieve location information in PIDF-LO format
3. Invite w/ PIDF-LO
4. Given caller’s location determine destination
5. Invite w/ PIDF-LO
Call Taker 9-1-1 Caller
Originating Network
ESInet PSAP
PIDF-LO equals location information ALI without Name, Carrier, Class of Service
PSAP gets location delivered with call.
6. Retrieve additional call information (name)
HTTP protocol
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IP Selective Router
1. 9-1-1 Call from Carrier to ESInet point of interface. Wireline (ANI) or Wireless / VoIP (pANI)
3. ESN
4. IP Protocols to PSAP equipment
Call Taker 9-1-1 Caller
• CAMA PSAPs use Legacy PSAP Gateway to convert to CAMA.
• IP PSAPs terminate SIP/RTP
5. ALI Bid or Rebid For Wireless: Location Updates
MSCLDE
6. For Wireless Calls: interface carriers network, VoIP follows similar Dynamic ALI retrieval
Originating Network
ESInet PSAP
2. IP Protocols SIP and RTP
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Call Signaling and Audio Interactions
3. Create a bridge
5. SIP Invite Customer Premise Equipment 9-1-1 Caller
Audio Path
Originating Network
ESInet PSAP
2. 9-1-1 call arrived
1. 9-1-1 Call Signaling and Audio
4. Bridge setup
RTP Audio Path
6. 3-way bridge
9-1-1 Call Setup. Additional Parties can be added or call can be completed.
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Different Methods of Location Delivery – Mobility Call
1. Wireless 9-1-1 Call (pANI)
2. Create and return URI
3. Invite w/ URI
4. ESN determined by pANI
5. Invite w/ URI Call Taker
9-1-1 Caller
Originating Network
ESInet PSAP
PSAP implements all NENA i3 interfaces
6. Initial location and location updates given the URI
MSCLDE
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Foundation Elements
Establish i3 core functions while managing transitional elements
Interoperate with changing Telecommunications Industry
(LVF, E-CSCF, IMS, NNI, IETF, Internet)
i3 NENA vision end-state fully realized
Advanced Applications and Data Services
Additional Requests for Assistance Types
Public Safety Migration Steps to NG9-1-1
Many paths and steps to the long term NG9-1-1 vision
Establish Core ESINet Infrastructure (IP Network and Softswitch)
IP PSAP
GIS Data Preparation (Location Validation, Routing, Service Identification)
Evolution of the overall environment(s) (Roles, Regulations, Tariffs, Funding, Incumbents, FCC, State…)
Carrier’s establish LIS and deliver a routable PIDF-LO
with call setup
i3 vision issue resolutions
Today Months Years Many Years
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Network Resiliency Considerations
• Multiple paths • Route Evaluation and Re-routes • Quality of Service packet prioritization • Points of Interface • Failure scenarios • Security
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Public Safety Transition Steps
Legacy 9-1-1
i3 Functions
Next Generation 9-1-1
IP Selective Router
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Sample PSAP Deployment Process
Deployment Phases
Definition
Kick Off PSAP Data Collection Site Survey TSP Research
Architecture
IP Network Design Ingress Network Design Call Flows ALI Interoperability Design Hosted CPE Design Rate Center Analysis
Integration
Order Equipment and Network TN Data Extracts ALI Simulations LNG Installation PSAP Installation IP Network Test and Turn Up POI Circuits Trunk Provisioning Technical Documentation Test Plans Event Plans
Deployment
ALI Migration Voice Pre-Migration Test Training PSAP Voice Migration Begin TSP EO Re-home
Maintenance
Monitoring Help Desk Data Management Abandonment Provisioning Changes
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TEXT to 9-1-1
And Future Call Types
Staffing
And Efficiencies
Public Services
and Perception
Data Transfers
Between Organizations
Why Move to NG9-1-1
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NG9-1-1 Benefits
• Public Services - Request for Assistance types – Voice, text, alarms, crash notification, personal devices, …
• Effectiveness - Collaboration and Information Sharing – Enable Multi-media communication – Between Agencies, Call Takers, Dispatchers, First Responders, Emergency Event
Management, Across jurisdictions, …
• Intelligence - Integrate with information sources – Site, People, History, Relationships, Events, …
• Capability - Enable smart applications – Situational assessment – Assist with emergency response – Protect public safety personnel
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Future Technologies MMES – Multimedia Messaging Emergency Services • IMS – IP Multimedia (LTE)
• Text • Real Time Text • Pictures • Video
• Carrier provided location (Same used for VoLTE )
Over the Top Applications (OTT) • Independent of carrier • OTT provider must verify identity of user • Must trust OTT provider for validity of subscriber • Apple iMessage , Blackberry Messenger • Application must provide location • Works across multiple platforms and carriers • Supports roaming • Could provide additional information from user
• Medical, contacts, addresses, bread crumbing, etc.
I need the police. A man just broke into my house. I am in a closet
Carrier: Hawaii Cellular Cell Address: 123 Main Street, Kauai Cell X/Y: 22.08N 159.5W Cell Uncertanty:1609 PSAP: Kauai Police
This is 9-1-1 What is your exact location
332 Emi road, Koloa
I am hiding in the master closet. Please hurry
The Police are on the way. Stay hidden
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