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Gregor Jänin, ENP 5/13/10

LNG for NG 9-1-1/ NG 1-1-2 Realization of IETF Standards for the operational use in a Legacy Network Gateway for Next Generation Emergency Communication Centers. Gregor Jänin, ENP 5/13/10. Background. Work being done:

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Gregor Jänin, ENP 5/13/10

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  1. LNG for NG 9-1-1/ NG 1-1-2Realization of IETF Standardsfor the operational usein a Legacy Network GatewayforNext Generation Emergency Communication Centers Gregor Jänin, ENP 5/13/10

  2. Background • Work being done: • Detailed Functional and Interface Specificationfor the NENAi3 Solution- Stage3 (Chapter 7) based on ideas from Theresa Reese (Telcordia) • Plans towards pure IP systems, and the truth • Studies for a master thesis • requests from the PSAP’s • need of a LNG as COTS product

  3. Big Picture

  4. “NG-911” at the moment IP Network of Telecoms (VoIP) PSAP IP Network (VoIP) pure wire circuit switched connection ANI/ALI request

  5. ESInet, what’s the right way ? Standard PSTN 2 VoIP Gateway connection to telecom’s

  6. Gateway overview

  7. placing a Gateway now • using a standard PSTN 2 VoIP gateway

  8. Job of a LNG

  9. Discovering & Calling a PSAP with ECRIT Location Information Server DHCP/DNS Server LoST Server Client PSAP DHCP INFORM at initial start of LNG access domain H E L D DNS NAPTR (access domain) LIS URI with every call HELD location E C R I T LoST (location) PSAP URI connect

  10. i3 defined LNG-Functions • PIFProtocol Interwork Function • NIFNG 9-1-1 / 1-1-2 Specific Interwork Function • LIFLocation Interwork Function

  11. looking inside a LNG

  12. PIF Protocol Interwork Function • Legacy Interfaces(circuit switched) • Ethernet IP interfaces (“legacy” side) • Border Control Function (BCF) • NG 911 Specific Interwork Funct. (NIF) • Ethernet IP interfaces (ESInet side)

  13. NG 112/911 spec. Interwork Function • PIF (receiving call information) • LIF • ECRF • PIF (delivering processed call information)

  14. LIFProtocol Interwork Function • connection to individual LIS • using HELD

  15. CAMA vs. ISDN Data for lookup available(with ISDN ) Result with CAMA: delay of call setup

  16. possible scenario with CAMA • best effort call forward also used if LIS does not respond in time!

  17. outgoing call via LNG LPG • works as Legacy PSAP Gateway • handover to other ESInet • Standard Call Gateway

  18. pure IP- world in the US  2020 ??? in the EU 2025 ???

  19. Q & A ??

  20. thanks for staying awake.. contact: Gregor Jänin, ENP +43 664 357 3632 (GMT+2) gregor.jaenin@dispo.net for Questions about 112 Operations Committee gj@eena.org

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