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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.

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Presentation on theme: "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."— Presentation transcript:

1 LNG for NG 9-1-1/ NG 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

2 Background Work being done: Detailed Functional and Interface Specification for 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) IP Network of Telecoms (VoIP) PSAP IP Network (VoIP) PSAP IP Network (VoIP) pure wire circuit switched connection ANI/ALI request ANI/ALI request

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

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 Client LoST Server Location Information Server PSAP HELDHELD ECRITECRIT DHCP INFORM access domain PSAP URI DHCP/DNS Server DNS NAPTR (access domain) LIS URI location HELD LoST (location) connect at initial start of LNG with every call

10 i3 defined LNG-Functions PIF Protocol Interwork Function NIF NG / Specific Interwork Function LIF Location 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  connection to individual LIS  using HELD LIF Protocol Interwork Function

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 (GMT+2) for Questions about 112 Operations Committee


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