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Report
California SMS Text-to-9-1-1
SMS Text-to-9-1-1 Pilots
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Pilots in four locations in California
Began testing in November 2013
All pilots tested by end of February 2014
Evaluate pilots February to April 2014
Final report May 2014
Testing with Verizon Wireless only
Short Message Service (SMS)
Text-to-9-1-1 Text Flow
CSU Long Beach
PD
Web Browser
Legacy
SR
Verizon
Wireless
SMSC
Text
Control
Center
(TCC)
CAMA
Downey PD
Standard TTY
NG IP
SR
Existing IP
Media
Gateway
Butte County
Sheriff
CSU Chico PD
Chico PD
IP Connection
Long Beach PD
TTY Gateway POC
Phase I* (E911) vs. Commercial (SMS911)
Emergency E911 Phase I Location
• Cell Sector Assigned to Fixed MSAG Address
• Each Cell Sector (e.g. A, B, C) can be Assigned to
Specific PSAP’s
Commercial LBS – Coarse Location
• Calculated by Center Point of the Sector RF Footprint
• No street address Information just X/Y
• Each RF Center Point (e.g. 1, 2, 3) can be Assigned to
Specific PSAP’s
A
B
C
*based on the Verizon Wireless network
SMS-to-9-1-1 via Web Portal
CSU Long Beach Police Department
• Initial testing completed November 20, 2013
• Requires PSAP to have internet access
• A separate web portal is open and monitored
for incoming text messages
• Provides map display of coarse location
• Routes outside of the Legacy Selective Router
SMS-to-9-1-1 via Web Portal
cont.
GEM9-1-1 Web pilot conducted with Verizon/ TCS
at CSU Long Beach Police Department
• No additional CAMA or IP trunking required
• Session-like (like Instant Message) experience for call
taker
• Call taker may handle more than one text session at a
time
• Limited transfer capability (primary only)
• Location information limited, will receive commercial
coarse location, (centroid of cell sector)
• Currently no language interpretation available
SMS-to-9-1-1 via Standard TTY/TDD
Downey Police Department
• Initial testing completed January 8, 2014
• Requires no additional equipment at the PSAP
• SMS text sessions display as TTY/TDD calls do
today (Baudot tones activate the TTY screen on 91-1 CPE)
• Routes through the existing Legacy Selective
Router
• ALI screen displays the coarse caller location (X/Y
only, no street information)
SMS-to-9-1-1 via Standard TTY/TDD
cont.
Standard TTY/TDD pilot conducted with
Verizon/TCS at Downey Police Department
CPE adjustments may be required
Uses a 9-1-1 trunk during the entire text session
Transfers work the same as transferring a TTY call
No language interpretation at this time
Difficult for one call taker to handle more than one
SMS text to 9-1-1 TTY session
• Ability to use canned messages
• One way transmission (half duplex)
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SMS-to-9-1-1 via IP Interface
Butte County Sheriff’s Department, CSU
Chico, and Chico Police Department
• Requires IP capable CPE and IP network
connectivity
• Direct integration with CPE
• Routes via the new NG9-1-1 IP Selective Router
• Text will be delivered over the NG9-1-1 IP
circuits not via a CAMA trunk
• Scheduled to test early February 2014
SMS-to-9-1-1 via TTY/TDD with Gateway
Long Beach Police Department
• Not commercially available at this time
(vendor Proof of Concept)
• Requires Gateway at the PSAP (to covert from IP to
Baudot at the PSAP) and IP network connectivity
• Calls display as TTY/TDD calls do today
• ALI screen displays the coarse (X/Y) caller location
• Routes outside of the Legacy Selective Router
• Does not use a 9-1-1 trunk/requires trunk card
• Potentially improves SMS text quality
(digital to analog at PSAP)
• Testing scheduled for Mid February 2014
Basic SMS-to-9-1-1 TTY ALI Screen
(562) 665-0182
SMS TEXT
845
11:04
01/13
W911
(562) 511-7330
VZW
DOWNEY P.D.
WIRELESS QUERY CALLER FOR LOCATION
LAT 33.94129500
LON-118.134248
METERS 1552
PERCENT 075
TTY : [BAUDOT] TEST TEXT CALL GA TRANSFER ME TO
FIRE DEPT GA 9-1-1 need police fire ambulance q ga I
NEED THE FIRE DEPT GA
SMS Text-to-9-1-1 Pilot Evaluation
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Cost and Procurement (one time and ongoing)
Network Requirements (CAMA vs IP bandwidth)
User experience
Overall system features and functionality
Bounce back message scenarios
Location accuracy and ability to update (rebid)
Time to receive text and text duration
Reporting capabilities
Transfer capabilities
QUESTIONS

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