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Extensions to the Emergency Services Architecture for dealing with Unauthenticated and Unauthorized Devices
draft-ietf-ecrit-unauthenticated-access-08

Document type: Active Internet-Draft (ecrit WG)
Document stream: IETF
Last updated: 2014-02-25 (latest revision 2013-10-19)
Intended RFC status: Informational
Other versions: plain text, xml, pdf, html

IETF State: WG Document
Consensus: Unknown
Document shepherd: Roger Marshall
Shepherd Write-Up: Last changed 2013-07-29

IESG State: IESG Evaluation::Revised I-D Needed
IANA Review State: IANA OK - No Actions Needed
IANA Action State: None
(Has a DISCUSS. Has enough positions to pass once DISCUSS positions are resolved.)
Responsible AD: Richard Barnes
Send notices to: ecrit-chairs@tools.ietf.org, draft-ietf-ecrit-unauthenticated-access@tools.ietf.org

ECRIT                                                     H. Schulzrinne
Internet-Draft                                       Columbia University
Intended status: Standards Track                               S. McCann
Expires: April 22, 2014                        Research in Motion UK Ltd
                                                                G. Bajko
                                                                   Nokia
                                                           H. Tschofenig
                                            Nokia Solutions and Networks
                                                          D. Kroeselberg
                                                                 Siemens
                                                        October 19, 2013

   Extensions to the Emergency Services Architecture for dealing with
                Unauthenticated and Unauthorized Devices
             draft-ietf-ecrit-unauthenticated-access-08.txt

Abstract

   The IETF emergency services architecture assumes that the calling
   device has acquired rights to use the access network or that no
   authentication is required for the access network, such as for public
   wireless access points.  Subsequent protocol interactions, such as
   obtaining location information, learning the address of the Public
   Safety Answering Point (PSAP) and the emergency call itself are
   largely decoupled from the underlying network access procedures.

   In some cases, however, the device does not have these credentials
   for network access, does not have a VoIP service provider, or the
   credentials have become invalid, e.g., because the user has exhausted
   their prepaid balance or the account has expired.

   With features provided by the Public Switched Telephone Network
   (PSTN) there is precedence for some of these use cases and the
   transition to IP-based emergency calling creates the desire to
   replicate functionality the PSTN already offers today.  For example,
   in many countries persons seeking help are empowered to initiate
   emergency calls without having a Subscriber Identity Module (SIM) in
   their mobile phone.

   This document provides a problem statement, introduces terminology
   and describes an extension for the base IETF emergency services
   architecture to address these scenarios.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

Schulzrinne, et al.      Expires April 22, 2014                 [Page 1]
Internet-Draft      Unauthenticated Emergency Service       October 2013

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   This Internet-Draft will expire on April 22, 2014.

Copyright Notice

   Copyright (c) 2013 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   5
   3.  Use Case Categories . . . . . . . . . . . . . . . . . . . . .   5
   4.  ZBP Considerations  . . . . . . . . . . . . . . . . . . . . .  11
   5.  NASP Considerations . . . . . . . . . . . . . . . . . . . . .  11
     5.1.  End Host Profile  . . . . . . . . . . . . . . . . . . . .  13
       5.1.1.  LoST Server Discovery . . . . . . . . . . . . . . . .  13
       5.1.2.  ESRP Discovery  . . . . . . . . . . . . . . . . . . .  13
       5.1.3.  Location Determination and Location Configuration . .  14
       5.1.4.  Emergency Call Identification . . . . . . . . . . . .  14
       5.1.5.  SIP Emergency Call Signaling  . . . . . . . . . . . .  14
       5.1.6.  Media . . . . . . . . . . . . . . . . . . . . . . . .  14
       5.1.7.  Testing . . . . . . . . . . . . . . . . . . . . . . .  14

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