1. 9-1-1 and VoIP Where are you calling from? InfraGard Conference April 2, 2008 InfraGard Conference April 2, 2008

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3. Agenda The Old Days 911 Call Routing  Wireline Calls  Phase I Wireless  Phase II Wireless  VoIP Current Status Future Routing Issues The Old Days 911 Call Routing  Wireline Calls  Phase I Wireless  Phase II Wireless  VoIP Current Status Future Routing Issues

4. 4 Voice Telephone Network Overview Traditional Residential/Business Calls ResidentialResidential Local Central Office (“End Office”) Local Central Office (“End Office”) BusinessBusiness Public Switched Telephone Network Local Central Office (“End Office”) Local Central Office (“End Office”) Other End Offices) “Local Tandem” Office “Local Tandem” Office

5. 5 ResidentialResidential Toll Tandem Office Toll Tandem Office BusinessBusiness IXC’sPOPIXC’sPOP IXC’sPOPIXC’sPOP Toll Tandem Office Toll Tandem Office Voice Telephone Network Overview Traditional Long Distance Call Routing Local Central Office (“End Office”) Local Central Office (“End Office”) CITY A CITY B IXC’sNetworkIXC’sNetwork Local Central Office (“End Office”) Local Central Office (“End Office”)

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16. Wireless E911 Phase I Route the call to the right PSAP Provide the callback number Route the call to the right PSAP Provide the callback number

17. ANI – Automatic Number Identification “Pseudo ANI” – A phone number used only for the duration of the call to route the call to the PSAP. …also called an “ESRK” Emergency Service Routing Key

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20. Phase II Route the call to the right PSAP Provide the callback number Provide Lat/Long Location Within: –Network, 100 meters 67% 300 meters 95% –Handset, 50 meters 67% 150 meters 95% “Confidence Factor” Estimate Route the call to the right PSAP Provide the callback number Provide Lat/Long Location Within: –Network, 100 meters 67% 300 meters 95% –Handset, 50 meters 67% 150 meters 95% “Confidence Factor” Estimate

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23. 23 VoIP Home and Small Business Phones Dial like a phone Quack like a phone Replace a phone Generate calls for help like a phone Pose problems for E9-1-1 agencies Would drain public safety revenue VoIP Home and Small Business Phones Dial like a phone Quack like a phone Replace a phone Generate calls for help like a phone Pose problems for E9-1-1 agencies Would drain public safety revenue

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25. 25 VoIP CONCERNS Misroutes from Corporate Systems Misroutes from VoIP Providers VoIP calls to 10-digit admin. number Non-compliance with E9-1-1 routing Non-compliance with 9-1-1 fees Federal policy – New Ruling VoIP CONCERNS Misroutes from Corporate Systems Misroutes from VoIP Providers VoIP calls to 10-digit admin. number Non-compliance with E9-1-1 routing Non-compliance with 9-1-1 fees Federal policy – New Ruling

26. 26 3 rd PARTY

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28. 28 SR DB The “i2” 9-1-1 Network CLEC LEC Wireless ESGW VoIP End Point Call Server VPC ALI DB VPC MPC PSAP 911 SR VDB ERDBLIS PDE

29. 29 Two New databases Will Emulate functions performed by landline 9-1-1 databases 1. VDB: Validation Database Used when subscriber registers address Civic, Postal to MSAG valid address VDB

30. 30 Two New databases 2. ERDB: Emergency Routing Database Used during 9-1-1 call to determine routing Provides routing instructions based on location Identifies the specific ESZ for the location Provides MSAG valid address ERDB

31. 31 NENA NG9-1-1 Architecture March 2007

32. QUESTIONS? Lucien Jones Oklahoma City Public Safety Communications Center lucien.jones@okc.gov