Slide 1

Report
9-1-1
Next Generation
September, 2007
The three-digit telephone number "9-1-1" has been designated as the "Universal
Emergency Number." It is intended as a nationwide telephone number and gives the public
fast and easy access to a Public Safety Answering Point (PSAP).
1950
1960
1957, National Association of
Fire Chiefs recommended
use of a single number for
reporting fires.
1970
1980
In the early 1970s, AT&T
develops "selective call
routing."
February 16, 1968, Senator
Rankin Fite completed the first
9-1-1 call made in the United
States in Haleyville, Alabama.
1990
2000
1998, Seattle, Qwest
delivers the first Enhance
Wireless 9-1-1
1987, 50% of the US
population had access
to 9-1-1
2005, VoIP
E9-1-1
2003, 96% of the
geographic US is covered
by some type of 9-1-1.
30 years after the introduction of Enhanced 9-1-1, the service
remains essentially unchanged.
VoIP is just a clever reinvention of the wheel
Tradition Telephony
Time-Division Multiplexing
VoIP is just a clever reinvention of the wheel
Packet Switching
VoIP is just a clever reinvention of the wheel
Voice over Internet Protocol
Fundamental and significant change in the communications industry is driving the need for Public
Safety solutions that accommodate the many new ways that emergency services can be requested
and the response provided.
Available
• Basic 911 A direct connection between a dial tone office and the PSAP
• Enhanced 911
Calls are routed based on location and calling party
information is displayed (ALI)
• Wireless 911
• Phase 0
Calls are directed to a 10 digit administrative number at the PSAP
• Phase I
Calls are routed based on the cell site (Antenna) location
• Phase II
Calls are routed based on the callers location (XY)
On the horizon
• VoIP (Voice over the Internet Protocol)
• I1
Calls are directed to a 10 digit administrative number at the PSAP
• I2
Calls are routed based on the callers location (XY) over TDM
• I3
Calls are routed based on the callers location (XY) over VoIP
• Telematics, ACN
OnStar, Automatic Crash Notification
• Text Devices
Instant messaging to the PSAP
• PDAs, Blackberry
• Satellite Phones
• AirPhone
• Medical devices
• Video
A new Emergency Services Network will bridge together PSAPs, emergency service
providers, jurisdictional oversight, management functions and others.
• The current solution set is constrained by the legacy design
• Analog circuit switching
• In-band multi-frequency (MF) CAMA signaling
• Limited messaging capability
• Fixed point-to-point communication
• Span of control is diminishing
• PSAP funding mechanisms
• Current models are breaking or are broken
• Networks and systems must be constructed to support the
• Higher levels of interaction
• Managed situational intelligence
• Coordinated response
• Comprehensive communication sets
• Service Provider model complexity
Controlled access points or gateways will exist where entities do not reside in E911 today.
Who am I?
Emma McNutt
Current 9-1-1 Architecture
ENHANCED 9-1-1 CALL DELIVERY
555 - 6969
ANI
Routing Instructions
from Host
Primary
ESN
- 56K
VOICE
(Call Delivery)
John Doe
70 W. 4th St
Anywhere, USA
555-6969
Local
Dials 9 - 1 -1 for
Telephone
HELP
Office
Automatic
Number
Identification
9 -1 -1
Tandem
(Selective Router)
• DMS
SERVICE
ORDER
555 - 6969
A
N
I
555 -6969
5ESS
A
L
I
(Data Delivery)
Street Address
Guide
SAG
56K
DISTRIBUTION POINT
John Doe
70 W. 4th St.
Anywhere, USA
555 -6969
T1
Backup
HOST
555 - 6969
ANI
Automatic
Location
Identification
Storage Devices
555 - 6969
John Doe
70 W. 4th St.
Anywhere, USA
Anywhere Police
Fire Dept #2
Anywhere Ambulance
56K
Backup
Backup 56K
Routing Instructions
from Host
CRIS
Backup 56K
ALI
• 5ESS
DMS
Customer Record
Information System
HOST
HOST
555 - 6969
ESN
Primary
- 56K
Recent Change
Routing Updates
Routing Files
TEL # - ESN
9 -1 -1 EXTRACT
Service Order Input
SOI
From TELCOs
9-1-1 Database
Telephone
Number
Database
Error
Correction
Master Street
Address Guide
Database
9-1-1
Coordinator
T1
HOST
PSTN
IP domain
Routing Proxy &
Redirect server(s)
Call server/
proxy server
Used for
contingency routing
Emergency Services
Provider Network
PSTN
Gateway
v6
ESGW(s)
v4
v5
E9-1-1
Selective
Router(s)
v4
v1
VoIP
End
Point
IP Domain
v2
v2
v0
Layer 2
Location
Download
mechanisms
VPC
VPC
VPC
Layer 3/Layer 7
Location
Download
v3
v9
LIS
v7
v7
v-e2
ESZ
RDB
RDO
SRDB
ALI
ALIDB
DB
v8
MSAG
VDB DBMS
v9
PSAP
Routing Proxy &
Redirectserver(s)
Legacy
PSAP
v6
ESGW(s)
IP Domain
v2
v0
Layer 2
Location
Download
mechanisms
VPC
VPC
VPC
Layer 3/Layer 7
Location
Download
v3
v9
LIS
v7
v-e2
ERDB
MSAG
VDB
SNR
MPCs
Legacy
Adaptor
DNS
v8
v7
v9
Future
PSAP
(CESE)
Response
Gateway
Complex
Load
Balancer
v2
VoIP gateways
MPC interface
E9-1-1
Selective
Router(s)
v4
v1
Response
Gateway
Complex
DNS
Load
Balancer
v4
v5
VoIP
End
Point
Legacy
Adaptor
VoIP LISs
PSTN
Gateway
Load
Balancer
Call server/
proxy server
Used for
contingency routing
PSTN
IP domain
DBMS
Other
Conforming
Entities
TCP/IP
Networks
DNS
SNR
TCP/IP
Network
ALI-DB
ALI-DB
ALI-DB
MPC interface
Selective
Routers
SR Interface
Response
Gateway
Complex
SNR
EIS
Emergency
Services
SR Interface
Foreign
ALI
EASP
Gateway
Services
External
Services
RDO
Migration Strategy
Phase 1 - Deploy IP connectivity to PSAPs with legacy CPE.
Phase 2a - Deploy native IP connectivity to PSAPs.
Phase 2b - Deploy IEN Data.
Phase 3 – Deploy IP Enabled PSAP
Next Gen Migration
Next Generation Infrastructure
Video, Data, Voice with Multi-Users
PS Application Framework
Including Notes / Map Sharing
Enhanced Call Routing
Seamless Transfers w/Data & Dynamic
Implement ESMI ALI Interface
ALI Management
Evolve E9-1-1 Infrastructure
IP Based Network/Routing
Current E9-1-1 Infrastructure
CAMA/SS7/Data

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