1. 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

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 9-1-1 / 1-1-2 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 +43 664 357 3632 (GMT+2) gregor.jaenin@dispo.net for Questions about 112 Operations Committee gj@eena.org