wireless call flow - homesteadnd911.homestead.com/911_flow_charts.pdf · wireless data management...
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Tandem
(Bismarck)
Tandem
(Fargo)
PSAP
ALI Database(Longmont, CO)
ALI Database(Miami, FL)
Wireless Carrier Domain
||
Central Office
+
Mobile Switching Center
+
Mobile Positioning Center
+
Position Determining Equipment
Wireless Call Flow
Voice Path
Data Path
1
Wireless Data Management
PSAP A PSAP CPSAP B
Wireless Program Manager(NDACo)
ALI Database(Longmont, CO)
ALI Database(Miami, FL)
Consultation As Necessary
Tandem
(Fargo)
Tandem
(Bismarck)
WirelessCarrier
Intrado
Provisioning
New
Cell
2
Tandem
(Bismarck)
Tandem
(Fargo)
PSAP
ALI Database(Longmont, CO)
ALI Database(Miami, FL)
VoIP Carrier Domain
||
Central Office
+
Emergency Services Gateway
+
VoIP Positioning Center
VoIP Call Flow
VoIP Phone
IP Network
Voice Path
Data Path3
VoIP Data Management
User
VoIP Phone
VoIP Carrier Domain
Address validation
performed
against third-party
map data
Registration
4
Tandem
(Bismarck)
Tandem
(Fargo)
PSAP
ALI Database(Longmont, CO)
ALI Database(Longmont, CO)
Voice Path
Data Path
Landline(POTS)
Local Exchange CarrierCentral Office
Landline Call (Intrado ALI)
5
Landline Data Management(Intrado ALI)
PSAP
ALI Database(Longmont, CO)
ALI Database(Miami, FL)
Tandem
(Fargo)
Tandem
(Bismarck)
Intrado
Provisioning
MSAG
Local Exchange Carrier
MSAG Issues
SOI
Errors
MSAG Management
6
ALI DatabaseProvided by
Local Exchange Carrier
Voice Path
Data Path
Landline(POTS)
Local Exchange CarrierSwitch
Landline Call (Local ALI)
PSAP
Call can arrive from a
competing local exchange
carrier
Database may reside at the
PSAP or hosted at the Local
Exchange Carrier’s Facility
7
Landline Data Management
(Local ALI)
PSAP
ALI DatabaseProvided By
Local Exchange Carrier
MSAG Local Exchange
Carrier
MSAG ManagementProvisioning
MSAG IssuesSOI
Errors
Local Exchange Carrier
Switch
8
Tandem
(Fargo)
PSAP
Mapping Database(Local)
Voice Path
Data Path
Landline(POTS)
Local Exchange CarrierCentral Office
Landline Call (No ALI)
TN-based Routing
(Some PSAPs have
direct trunks that bypass the
Tandem)
Tandem
(Bismarck)
9
Mapping Database(Local)
Local Exchange
Carrier
Landline Data Management
(No ALI)
PSAP
SOI
10
Tandem
(Bismarck)
Tandem
(Fargo)
PSAP
ALI Database(Longmont, CO)
ALI Database(Longmont, CO)
Voice Path
Data Path
Landline(POTS)
Local Exchange CarrierCentral Office
Landline CallNorth Dakota State
Radio
ALI DatabaseBullBerry
11
Landline Data Management
North Dakota State Radio
PSAPIntrado
Customer
ALI Database(Longmont, CO)
ALI Database(Miami, FL)
Selective Router
(Fargo)
Selective Router
(Bismarck)
Intrado
Provisioning
MSAG
Local Exchange Carrier
MSAG Issues
SOI
Errors
MSAG Management
PSAPNon-Intrado
CustomerBullBerry
Address Point Management
SOI Extracts
ALI DatabaseBullBerry
Provisioning
12
PSAP
NG9-1-1 Call FlowALL
“End State”
Wireless
Carrier Domain
VoIP
Carrier Domain
VoIP Phone
IP Network
Landline(POTS) Landline
Carrier
Future Service
Provider Domain
IP Network
LIS / CIDB
ESInet
BCF
ECRF(Private)
ECRF(Public)
ECRF(Public)
ESRP
Terminating ESRP
(a.k.a. CPE)
BCF
1
3
13
2 4
4
5
6
7
6
PSAP NDDES
ECRF
LVF
Local Exchange Carrier
LIS / CIDB
VoIP Carrier Domain
Future Service
Provider Domain
Wireless Carrier Domain
GIS Issues
NG9-1-1 Data
ManagementGIS Management
14
1
23
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