Jaci Marie Louise & Kira Doty

1. WHERE IS THE PHONE? USING GIS TO ENHANCE YOUR 911 SERVICES
911 SOLUTIONS, INC.
JACI MARIE LOUISE, ENP
KIRA DOTY
WWW.911SOLUTIONS.NET

2. oGeocoding Landline Telephone Numbers (TN’s)
oAddress Standardization
oEmergency Notification Parameters
oWireless History
oPhase 0
oPhase I and Phase II
oTypes of Location Determination Solutions
oWireless Phase II
oFCC Accuracy
oConfidence Factor (COF) and Uncertainty (UNCERT)
oWireless Testing
oCurrent Accuracy
oRouting
oAre your Cell Towers working properly?
oFollow up with carriers
IN THIS SESSION:
911 Solutions, Inc

3. GEOCODING
Geocoding is the process of assigning location to information. In the context of a Geographic Information System (GIS), it means assigning geographic point coordinates to a street address. More generically, it can mean taking any data with textual descriptions of town, zip code, or country, for example and making it mappable.
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4. GEOCODING LANDLINE TELEPHONE NUMBERS (TN)
•Start with the tn extract from the MSAG and any other tn extract not housed in the MSAG , such as Comcast . Currently, Century Link and Comcast charge for this data.
•Compare the addresses from the tn extract to the, GIS parcels, points and center line
•From the fallout, determine if the GIS data or the MSAG data should be corrected
•Work toward address standardization – making sure all data matches
•Point data will be very important to Next Generation 9-1-1
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5. ADDRESS STANDARDIZATION
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6. EMERGENCY NOTIFICATION PARAMETERS
•An emergency notification system is a method of quickly delivering a message to a group of people based on a geographic area to alert them to an emergency.
•Emergency Notification Systems rely on the tn extract data that is geocoded to be downloaded to their web-based program.
•Geocoding on points is the preferred method , however, some use centerline.
•It is important to assure accuracy with the emergency notification provider, so evacuation notices are properly delivered.
•Cell phone and VoIP customers must “opt in” to receive notifications.
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7. 911 Solutions, Inc.
THE BRICK ORIGINALLY: THOUGHT IT WOULD NOT AFFECT 9-1-1, DID NOT ANTICIPATE WIDESPREAD USE.
Wireless 911 History

8. 911 Solutions, Inc.
WIRELESS HISTORY
• First cellular phones could not dial 9-1-1, which quickly became a problem.
•Today:
• 70 to 80 percent of all 9-1-1 calls come from cellular telephones.
• Public perception: Dial 9-1-1, help will be on the way.
• However, if we can’t find you, we can’t help you.
• Caller location still a problem.

9. 911 Solutions, Inc.
THE FIRST SOLUTION FOR WIRELESS – PHASE 0
•
•Wireless calls were connected to the 9-1-1 Center by assigning a ten digit number.
• The ten-digit phone line was added to the 9-1-1 telephone consoles – labeled as “9-1-1”
• This gave callers the same priority as land line callers
• Did not provide Automatic Number Identification/Automatic Location Information (ANI/ALI)
•Locating the call could be problematic
9-1-1
9-1-1
Admin
Admin
Admin
Admin
Admin
Admin
9-1-1
9-1-1
9-1-1
9-1-1
9-1-1
E9-1-1 trunks
Ten digit phone lines labeled at 9-1-1

10. THE NEXT SOLUTION FOR WIRELESS 9-1-1 CALLS – PHASE I AND PHASE II
Phase I
•Connects the 9-1-1 call to the center via the 9-1-1 trunk, doing away with the need for the ten-digit number.
• Provides the cell tower address and the call back number of caller to the 9-1-1 center through ANI/ALI.
Phase II
•In addition to Phase I, Phase II provides the the approximate Latitude and Longitude (Lat/Long) of the caller to the 9-1-1 Center though ANI/ALI.
•Provides an Uncertainty Factor
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11. 911 Solutions, Inc.
TYPES OF LOCATION DETERMINATION SOLUTIONS PHASE II – NETWORK BASED TRIANGULATION
•Uses triangulation and signal strength to determine the callers location.
•requires two or three cell sites
•Pro: Works well in Metro areas, within buildings and hard topped vehicles.

12. 911 Solutions, Inc.
TYPES OF LOCATION DETERMINATION SOLUTIONS PHASE II – GPS HANDSET-BASED SOLUTION
•Phone handset has a Global Positioning System (GPS) chip that is activated when 9-1-1 is dialed.
•The GPS receives the Lat/Long from orbiting satellites and transmits it to the cell site.
•If the phone does not have a GPS chip, it will be Phase I even after the wireless carrier is Phase II. Pro - does not need more than one cell site to obtain caller position.

13. WIRELESS PHASE II
Cell Phone Number
Carrier
Cell Site Address
WPH2
ESN
Carrier ID
911 Center Designation
Uncertainty Factor UNCETR
Latitude and Longitude
COF %
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14. FCC ACCURACY REQUIREMENTS NETWORK BASED

15. FCC ACCURACY REQUIREMENTS HANDSET BASED

16. CONFIDENCE FACTOR (COF) AND UNCERTAINTY FACTOR (UNCERT)
COF is the abbreviation for confidence factor. Is shown as a percentage and should only be used in conjunction with the Uncertainty factor and never be sent by itself. In addition, the COF is not standard among the various location technologies. The COF is not being displayed in most centers in Colorado.
The uncertainty factor (UNCERT) represents how close the lat/long given is to the caller’s location, expressed in meters. For example, an uncertainty factor of 12 indicates that the caller should be within 12 meters of the point indicated by the latitude and longitude coordinates.
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17. WIRELESS TESTING

18. THE BENEFITS OF WIRELESS TESTING
oVerify cell towers are providing Phase II
oVerify cell towers are providing the address the PSAP wants displayed
oVerify sector data is displayed properly
oVerify Latitude and Longitude coordinates are within the specified distances as mandated by the FCC
oVerify cell towers and/or sectors are routing calls to the proper PSAP (Public Safety Answering Point)
oVerify there are not any Phase 0 calls
oVerify any anomalies in the system
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19. TEST CALL
!. ^ ^ ^ ^Ei ^
HIGHLANDS RANCH
FOOTHILLS CANYON
WESTBURY
COVE CREEK
CASTLE RIDGE
WHITECLIFF
WESTRIDGE KNOLLS
BRAEWOOD
WILDCAT RESERVE
FENDLEBRUSH
SPRING HILL
AUTUMNWOOD
MOUNTAIN DAISY
GOLD DUST
FENDLEBRUSH
AT&T
T-Mobile VerizonSprint
TrakFone
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20. 911 Solutions, Inc

21. CURRENT ACCURACY
To determine current accuracy, run statistical analysis on the number of calls that fell within 50 meters, 150 meters and 300 meters. The example is an overall analysis of all the carriers. An analysis per carrier is helpful to determine if there are issues that may not meet the FCC accuracy requirements. In 2014, 80% of all handset based need to fall with in 150 meters or 90% of all network based fall within 300 meters.
911 Solutions, Inc

22. PERCENT OF PHASE II
0.00%
10.00%
20.00%
30.00%
40.00%
50.00%
60.00%
70.00%
80.00%
Phase I
Phase II
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23. HOW 911 CALLS ARE CURRENTLY BEING ROUTED
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24. PROPER WIRELESS ROUTING
oEach Carrier provides a routing sheet with address, sector data, location of cell tower and Public Safety Answering Point (PSAP) routing.
oWhile the sector radius does not represent exact coverage, PSAP boundaries can be used to determine which sector should route to which PSAP.
oFor additional accuracy in sector routing , plotting the Phase II lat/long from call history, can verify if a sector is labeled properly or determine the where the majority of the calls are.
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25. ARE YOUR CELL TOWERS WORKING PROPERLY??
oFrom testing you can determine if your cell towers are delivering the proper information to 9-1-1
oAre the wireless calls being delivered on the 9-1-1 trunk, or did it ring on an administrative line?
oDid the 9-1-1 center receive at least a Phase I call on the 9-1-1 trunk?
oDid the Phase I call retransmit (rebid or refresh) to a Phase II call with a lat/long and an uncertainty factor?
oWas the call routed to the correct 9-1-1 center?
oDid the cell tower address display properly?
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26. FOLLOW UP WITH WIRELESS CARRIERS
oIf there are issues, work with the carriers to correct the problems Towers displaying incorrect addresses or routing improperly can be resolved by the change request section of the routing sheets.
oIf the accuracy is low, send the report to the carrier, they are usually willing to work for better accuracy
oIf the accuracy does not improve and the carrier is unwilling to work with you, contact the FCC
oTesting should be done yearly, to make sure accuracy continues to improve and new issues are addressed
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27. Any Questions?
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