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Abstract

There is an increasing demand of multimedia and location aware services when an accurate and immediate response is needed, for example in the case of emergency services. In parallel, the technology has evolved from Circuit Switch (CS) to Packet Switch (PS) networks requiring backwards compatibility. As a result the emergency services support for NGNs, in particular for IMS, is being standardized by 3GPP, NENA, ETSI. In this paper we present architecture for Emergency Services support in IMS, starting from the one from 3GPP. We have implemented this architecture as the Emergency Branch of the open-source project Open IMS Core. The available methods for personalizing the testbed and validation scenarios are described here. More important, the management of resource allocation and prioritization of emergency calls is also discussed in the context of the emerging EPC.

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References

  1. IP Multimedia Subsystem (IMS), http://www.3gpp.org/article/ims

  2. Emergency Branch of the Open IMS Core, http://openimscore.org/emergency

  3. Open IMS Core project, http://openimscore.org

  4. Peace European Project, http://www.ict-peace.eu/

  5. IP Multimedia Subsystem (IMS) emergency sessions, TS 23.167

    Google Scholar 

  6. Schulzrinne, H.: The tel URI for Telephone Numbers. RFC 3966 (December 2004)

    Google Scholar 

  7. Rosenberg, J., Schulzrinne, H., et al.: Session Initiation Protocol (SIP). RFC 3261

    Google Scholar 

  8. IP Multimedia (IM) Subsystem Cx and Dx Interfaces; Signalling flows and message contents, TS 29.228

    Google Scholar 

  9. Patel, M.: SOS Uniform Resource Identifier (URI) Parameter for Marking of Session Initiation Protocol (SIP) Requests related to Emergency Services, draft-patel-ecrit-sos-parameter-07.txt (October 26, 2009)

    Google Scholar 

  10. Schulzrinne, H.: A Uniform Resource Name (URN) for Emergency and Other Well-Known Services, RFC 5031 (January 2008), http://tools.ietf.org/html/rfc5031

  11. Polk, J., Rosen, B.: Location Conveyance for the Session Initiation Protocol., draft-ietf-sip-location-conveyance-13.txt (July 13, 2009)

    Google Scholar 

  12. Sugano, H., Fujimoto, S., Klyne, G., Bateman, A., Carr, W., Peterson, J.: Presence Information Data Format (PIDF), RFC 3863 (August 2004)

    Google Scholar 

  13. Day, M., et al.: Instant Messaging / Presence Protocol Requirements. RFC 2779

    Google Scholar 

  14. Cuellar, J., Polk, J., et al.: Geopriv Requirements. RFC 3693 (February 2004)

    Google Scholar 

  15. Peterson, J.: A Presence-based GEOPRIV Location Object Format, RFC 4119 (December 2005), http://tools.ietf.org/html/rfc4119

  16. Winterbottom, J., Tschofenig, H., et al.: GEOPRIV Presence Information Data Format Location Object (PIDF-LO); Usage Clarification, Considerations, and Recommendations, RFC 5491 (March 2009)

    Google Scholar 

  17. Thomson, M., Winterbottom, J.: Revised Civic Location Format for Presence Information Data Format Location Object (PIDF-LO), RFC 5139 (February 2008)

    Google Scholar 

  18. Open Mobile Alliance (OMA), http://www.openmobilealliance.org/

  19. OMA Location in SIP/IP Core (LOCSIP), http://www.openmobilealliance.org/Technical/release_program/locsip_v1_0.aspx

  20. Roach, A.B.: Session Initiation Protocol (SIP)-Specific Event Notification, RFC 3265 (June 2002)

    Google Scholar 

  21. Rosen, B., et al.: Filtering Location Notifications in the Session Initiation Protocol (SIP), October 26, draft-ietf-geopriv-loc-filters-07.txt (2009)

    Google Scholar 

  22. Schulzrinne, H., et al.: LoST: A Location-to-Service Translation Protocol., RFC 5222

    Google Scholar 

  23. Internet Protocol (IP) multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3, TS 24.229

    Google Scholar 

  24. 3GPP Release 9, http://www.3gpp.org/Release-9

  25. SIP Express Router (SER), http://www.iptel.org/ser/

  26. Rebahi, Y., Onofrei, A.A., Magedanz, T.: Security in the emergency services support for the IP Multimedia Subsystem. In: MANWEEK 2009 (2009)

    Google Scholar 

  27. LibCurl, http://curl.haxx.se/

  28. The XML C parser and toolkit of Gnome, libxml, http://xmlsoft.org/

  29. CU LoST Reference Implementation, http://honamsun.cs.columbia.edu/index.html

  30. PostgreSQL, http://www.postgresql.org/

  31. Monster the IMS client, Fraunhofer Institute FOKUS, http://www.monster-the-client.org/

  32. OMA Secure User Plane Location V2.0 (SUPL), http://www.openmobilealliance.org/Technical/release_program/supl_v2_0.aspx

  33. SIPp, http://sipp.sourceforge.net/

  34. Evolved Packet System (EPS), http://www.3gpp.org/ftp/Specs/html-info/29273.htm

  35. EPC interface with IMS, http://www.openepc.net/en/openepc/use_cases/ims/index.html

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© 2011 ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering

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Onofrei, A.A., Rebahi, Y., Magedanz, T., Aguilar, F.L., López, J.M.L. (2011). Emergency Services in IMS. In: Magedanz, T., Gavras, A., Thanh, N.H., Chase, J.S. (eds) Testbeds and Research Infrastructures. Development of Networks and Communities. TridentCom 2010. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 46. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-17851-1_65

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  • DOI: https://doi.org/10.1007/978-3-642-17851-1_65

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-17850-4

  • Online ISBN: 978-3-642-17851-1

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