RFC 4190 on Framework for Supporting Emergency Telecommunications Service (ETS) in IP Telephony

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        RFC 4190

        Title:      Framework for Supporting Emergency
                    Telecommunications Service (ETS) in IP Telephony
        Author(s):  K. Carlberg, I. Brown, C. Beard
        Status:     Informational
        Date:       November 2005
        Mailbox:    k.carlberg@cs.ucl.ac.uk, I.Brown@cs.ucl.ac.uk,
                    BeardC@umkc.edu
        Pages:      28
        Characters: 69447
        Updates/Obsoletes/SeeAlso:    None

        I-D Tag:    draft-ietf-ieprep-framework-10.txt

        URL:        ftp://ftp.rfc-editor.org/in-notes/rfc4190.txt

This document presents a framework for supporting authorized,
emergency-related communication within the context of IP telephony.
We present a series of objectives that reflect a general view of how
authorized emergency service, in line with the Emergency
Telecommunications Service (ETS), should be realized within today's
IP architecture and service models.  From these objectives, we
present a corresponding set of protocols and capabilities, which
provide a more specific set of recommendations regarding existing
IETF protocols.  Finally, we present two scenarios that act as
guiding models for the objectives and functions listed in this
document.  These models, coupled with an example of an existing
service in the Public Switched Telephone Network (PSTN), contribute to
a constrained solution space.

This document is a product of the Internet Emergency Preparedness
Working Group of the IETF.

This memo provides information for the Internet community.  It does
not specify an Internet standard of any kind.  Distribution of this
memo is unlimited.

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Joyce K. Reynolds and Sandy Ginoza
USC/Information Sciences Institute

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