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Additional Data Related to an Emergency Call (RFC7852) Disclosure Number: IPCOM000247051D
Original Publication Date: 2016-Jul-01
Included in the Prior Art Database: 2016-Jul-31

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R. Gellens: AUTHOR [+4]


When an IP-based emergency call is initiated, a rich set of data from multiple data sources is conveyed to the Public Safety Answering Point (PSAP). This data includes information about the calling party identity, the multimedia capabilities of the device, the request for emergency services, location information, and metadata about the sources of the data. In addition, the device, the access network provider, and any service provider in the call path has even more information that is useful for a PSAP when handling an emergency.

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Internet Engineering Task Force (IETF)                        R. Gellens Request for Comments: 7852 Updates: 6443, 6881                                             B. Rosen Category: Standards Track                                        NeuStar ISSN: 2070-1721                                            H. Tschofenig

                                                             R. Marshall                                          TeleCommunication Systems, Inc.                                                          J. Winterbottom                                              Winterb Consulting Services                                                                July 2016

               Additional Data Related to an Emergency Call


   When an emergency call is sent to a Public Safety Answering Point    (PSAP), the originating device, the access network provider to which    the device is connected, and all service providers in the path of the    call have information about the call, the caller, or the location,    which is helpful for the PSAP to have in handling the emergency.    This document describes data structures and mechanisms to convey such    data to the PSAP.  The intent is that every emergency call carry as    much of the information described here as possible using the    mechanisms described here.

   The mechanisms permit the data to be conveyed by reference (as an    external resource) or by value (within the body of a SIP message or a    location object).  This follows the tradition of prior emergency    services standardization work where data can be conveyed by value    within the call signaling (i.e., in the body of the SIP message) or    by reference.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force    (IETF).  It represents the consensus of the IETF community.  It has    received public review and has been approved for publication by the    Internet Engineering Steering Group (IESG).  Further information on    Internet Standards is available in Section 2 of RFC 7841.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

 Gellens, et al.              Standards Track                    [Page 1]
 RFC 7852                  Additional Call Data                ...