1. Ernst Langmantel Technical Director, Austrian Regulatory Authority for Broadcasting and Telecommunication (RTR GmbH) The opinions expressed in this presentation are the personal views of the author and do not prejudge decisions of the Austrian regulatory authority Internet / Next Generation Emergency Calls

2. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 2 Contents  Basic Service Architecture Elements  Legacy networks (PSTN/ISDN, GSM/UMTS)  Architecture – Outgoing Calls – Emergency Calls  Internet  Architecture – Outgoing Calls – Emergency Calls  NGN (ITU/ETSI)  Architecture – Outgoing Calls – Emergency Calls  IETF/Internet and ITU/ETSI NGN – Synergies ?

3. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 3 Basic Service Architecture Elements

4. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 4 Transport Network Edge [Terminals, Application servers] Network of Networks Service Connectivity, Signalling Terminal Networks and Terminals

5. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 5 Transport Network Edge [Terminals, Application servers] Network of Networks Service Connectivity, Signalling Terminal Media Streams / User Data Path Terminal

6. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 6 Transport Network Edge [Terminals, Application servers] Network of Networks Service Connectivity, Signalling Terminal Signalling Terminal

7. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 7 Legacy networks (PSTN/ISDN, GSM/UMTS) Architecture – Outgoing Calls – Emergency Calls

8. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 8 Transport Service Connectivity, Signalling PSTN /ISDN, GSM/UMTS – Architecture [simplified] Without service interconnection (service interoperability) between networks the service area is restricted to area of individual networks Service control and physical routing points combined in “Telephone Exchanges”

9. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 9 g Caller / Called in Home Network Service Connectivity, Signalling H H PSTN /ISDN, GSM/UMTS – Outgoing/ Emergency Call [simplified] In case of emergency calls national emergency routing information is retrieved locally in the telephone exchange or from a national data base Transport

10. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 10 H Service Connectivity V H Caller in Visited Network GSM/UMTS – Roaming Outgoing /Emergency Calls [simplified] Call control in visited network In case of emergency calls national emergency routing information is retrieved locally in the telephone exchange or from a national data base PSAP Transport

11. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 11 Internet Architecture – Outgoing Calls – Emergency Calls

12. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 12 Transport (IP-Packets) Service Connectivity, Signalling Internet Services - Architecture [simplified] ONLY IP-Interoperability necessary for GLOBAL service area ! Service control (call control) at the network edge. NO CONTROL of network transport by service control

13. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 13 Service Connectivity, Signalling Internet VoIP - Outgoing Call [simplified] Global service area without service interoperability between providers “Home Position” IP-interoperability between networks Transport (IP-Packets)

14. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 14 Service Connectivity, Signalling Internet VoIP – Outgoing Call [simplified] IP-Interoperability between networks Different Service/Application Providers Interoperability between services/ applications of network edge, not relevant for networks Transport (IP-Packets)

15. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 15 Service Connectivity, Signalling Internet VoIP - Emergency Call Solution (ECRIT) [simplified] HH LoST fully distributed international emergency routing data base PSAP Location & type of emergency PSAP UrI Where do I get PSAP Url in visited country? Type of emergency & location Transport (IP-Packets)

16. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 16 LoST Functionality (Location-to-Service Translation Protocol)  Satisfies the requirements (draft-ietf-ecrit-requirements) for mapping protocols  Civic as well as geospatial queries  civic address validation  Recursive and iterative resolution  Fully distributed and hierarchical deployment  can be split by any geographic or civic boundary  same civic region can span multiple LoST servers  Indicates errors in civic location data  debugging  but provides best-effort resolution  Supports overlapping service regions Source: SDO Emergency Services Coordination Workshop (5./6.10.2006, Columbia University, New York), A Location-to-Service Translation Protocol (LoST)- Mapping Protocol Architecture, Ted Hardie, Andrew Newton, Henning Schulzrinne, Hannes Tschofenig

17. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 17 LoST Conclusions  Mapping is core component of emergency calling problem  LoST fully international and distributed  tries to avoid “who runs the root” problem  optimized for efficient use in mobile end systems Source : SDO Emergency Services Coordination Workshop (5./6.10.2006, Columbia University, New York), A Location-to-Service Translation Protocol (LoST)- Mapping Protocol Architecture, Ted Hardie, Andrew Newton, Henning Schulzrinne, Hannes Tschofenig

18. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 18 NGN (ITU/ETSI) Architecture – Outgoing Calls – Emergency Calls

19. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 19 Physical Transport (IP Packets) Service Connectivity, Signalling NGN – Architecture [simplified] Service control and physical routing in DIFFERENT network elements but fierce control of transport resources by service control within individual networks. Without service interconnection (service interoperability) the service area is restricted to area of individual networks (same as in legacy circuit switched networks)

20. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 20 NGN (IMS) - Outgoing Call [simplified] Roaming User (Exception for Emergency Calls!) Physical Transport (IP-Packets) H Service Connectivity V H Call control for roaming user from “Home Position” (Internet-like) BUT via visited network Caller in visited network

21. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 21 Physical Transport (IP-Packets) NGN (IMS) - Emergency Call NGN [simplified] Roaming User H Service Connectivity V Home Position lacks knowledge of caller location and national emergency routing in visited country PSAP Caller in visited network

22. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 22 Physical Transport (IP-Packets) H Service Connectivity V H In case of emergency calls also in NGN (like in GSM/UMTS) invocation of call control in visted network including access to national emergency routing information to PSAP. PSAP NGN (IMS) - Emergency Call NGN [simplified] Roaming User Caller in visited network

23. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 23 IETF/Internet and ITU/ETSI NGN – Synergies ?

24. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 24 One “Emergency (IP-)World” ?  A lot of synergies regarding ITU/ETSI NGN and IETF Internet standards are already in place because 3GPP standardisation is done in collaboration with IETF and NGN built on 3GPP specs.  Global routing database (LoST) is key element in IETF ECRIT concept.  Global IETF emergency call routing database should also be able to serve 3GPP and NGN needs.  No basic change to current basic NGN architecture necessary if NGN reuses IETF data base. NGN Location Retrieval Function (LRF) could access LoST. The goal: Only one place for the emergency organisations to put their routing requirements data! “Single point of truth” Can the two worlds come together ?

25. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 25 Further Information  NGN  ETSI NGN, IMS emergency session standards  ETSI TS 102 424 (2005-09) – Requirements for the NGN network to support emergency communication from citizen to authority  Draft ETSI TS 182 009 (version 12.07.2006) – NGN Architecture to support emergency communication from citizen to authority  ETSI TS 102 164 (2006-09) – Emergency Location Protocols  G. Camarillo, M. A. Garcia-Martin, The 3G IP Multimedia Subssystem (IMS), Wiley 2006  IETF / ECRIT – Emergency Context Resolution using Internet Technologies  http://www.ietf.org/html.charters/ecrit-charter.html http://www.ietf.org/html.charters/ecrit-charter.html  A Wiki page that points to the most important documents: http://www.tschofenig.com/twiki/bin/view/EmergencyServices/EcritReviews (including link to SDO Emergency Services Coordination Workshop (ESW06)) http://www.tschofenig.com/twiki/bin/view/EmergencyServices/EcritReviews  IETF: http://edu.ietf.org/ http://edu.ietf.org/

26. ITU Workshop "Future of Voice", 15./16.01.2007, GenevaSeite 26 Thank you very much for your attention !