draft-ietf-ecrit-car-crash-13.txt   draft-ietf-ecrit-car-crash-14.txt 
ECRIT R. Gellens ECRIT R. Gellens
Internet-Draft Core Technology Consulting Internet-Draft Core Technology Consulting
Intended status: Standards Track B. Rosen Intended status: Standards Track B. Rosen
Expires: April 6, 2017 NeuStar, Inc. Expires: April 12, 2017 NeuStar, Inc.
H. Tschofenig H. Tschofenig
Individual Individual
October 3, 2016 October 9, 2016
Next-Generation Vehicle-Initiated Emergency Calls Next-Generation Vehicle-Initiated Emergency Calls
draft-ietf-ecrit-car-crash-13.txt draft-ietf-ecrit-car-crash-14.txt
Abstract Abstract
This document describes how to use IP-based emergency services This document describes how to use IP-based emergency services
mechanisms to support the next generation of emergency calls placed mechanisms to support the next generation of emergency calls placed
by vehicles (automatically in the event of a crash or serious by vehicles (automatically in the event of a crash or serious
incident, or manually invoked by a vehicle occupant) and conveying incident, or manually invoked by a vehicle occupant) and conveying
vehicle, sensor, and location data related to the crash or incident. vehicle, sensor, and location data related to the crash or incident.
Such calls are often referred to as "Automatic Crash Notification" Such calls are often referred to as "Automatic Crash Notification"
(ACN), or "Advanced Automatic Crash Notification" (AACN), even in the (ACN), or "Advanced Automatic Crash Notification" (AACN), even in the
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Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/. Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on April 6, 2017. This Internet-Draft will expire on April 12, 2017.
Copyright Notice Copyright Notice
Copyright (c) 2016 IETF Trust and the persons identified as the Copyright (c) 2016 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of (http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
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9.2. Request Example . . . . . . . . . . . . . . . . . . . . . 19 9.2. Request Example . . . . . . . . . . . . . . . . . . . . . 19
9.3. The <ack> element . . . . . . . . . . . . . . . . . . . . 20 9.3. The <ack> element . . . . . . . . . . . . . . . . . . . . 20
9.4. The <capabilities> element . . . . . . . . . . . . . . . 21 9.4. The <capabilities> element . . . . . . . . . . . . . . . 21
10. Test Calls . . . . . . . . . . . . . . . . . . . . . . . . . 22 10. Test Calls . . . . . . . . . . . . . . . . . . . . . . . . . 22
11. The emergencyCallData.eCall.VEDS INFO package . . . . . . . . 23 11. The emergencyCallData.eCall.VEDS INFO package . . . . . . . . 23
11.1. Overall Description . . . . . . . . . . . . . . . . . . 23 11.1. Overall Description . . . . . . . . . . . . . . . . . . 23
11.2. Applicability . . . . . . . . . . . . . . . . . . . . . 24 11.2. Applicability . . . . . . . . . . . . . . . . . . . . . 24
11.3. Info Package Name . . . . . . . . . . . . . . . . . . . 24 11.3. Info Package Name . . . . . . . . . . . . . . . . . . . 24
11.4. Info Package Parameters . . . . . . . . . . . . . . . . 24 11.4. Info Package Parameters . . . . . . . . . . . . . . . . 24
11.5. SIP Option-Tags . . . . . . . . . . . . . . . . . . . . 24 11.5. SIP Option-Tags . . . . . . . . . . . . . . . . . . . . 24
11.6. INFO Message Body Parts . . . . . . . . . . . . . . . . 24 11.6. INFO Request Body Parts . . . . . . . . . . . . . . . . 24
11.7. Info Package Usage Restrictions . . . . . . . . . . . . 25 11.7. Info Package Usage Restrictions . . . . . . . . . . . . 25
11.8. Rate of INFO Requests . . . . . . . . . . . . . . . . . 25 11.8. Rate of INFO Requests . . . . . . . . . . . . . . . . . 25
11.9. Info Package Security Considerations . . . . . . . . . . 25 11.9. Info Package Security Considerations . . . . . . . . . . 25
11.10. Implementation Details . . . . . . . . . . . . . . . . . 26 11.10. Implementation Details . . . . . . . . . . . . . . . . . 25
11.11. Examples . . . . . . . . . . . . . . . . . . . . . . . . 26 11.11. Examples . . . . . . . . . . . . . . . . . . . . . . . . 25
12. Example . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 12. Example . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
13. Security Considerations . . . . . . . . . . . . . . . . . . . 31 13. Security Considerations . . . . . . . . . . . . . . . . . . . 31
14. Privacy Considerations . . . . . . . . . . . . . . . . . . . 32 14. Privacy Considerations . . . . . . . . . . . . . . . . . . . 31
15. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 32 15. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 32
15.1. MIME Content-type Registration for 15.1. MIME Content-type Registration for
'application/EmergencyCall.VEDS+xml' . . . . . . . . . . 32 'application/EmergencyCall.VEDS+xml' . . . . . . . . . . 32
15.2. Registration of the 'VEDS' entry in the Emergency Call 15.2. Registration of the 'VEDS' entry in the Emergency Call
Additional Data registry . . . . . . . . . . . . . . . . 34 Additional Data registry . . . . . . . . . . . . . . . . 33
15.3. New Action Values . . . . . . . . . . . . . . . . . . . 34 15.3. New Action Values . . . . . . . . . . . . . . . . . . . 33
15.4. Static Message Registry . . . . . . . . . . . . . . . . 34 15.4. Static Message Registry . . . . . . . . . . . . . . . . 34
15.5. Lamp ID Registry . . . . . . . . . . . . . . . . . . . . 35 15.5. Lamp ID Registry . . . . . . . . . . . . . . . . . . . . 35
15.6. Camera ID Registry . . . . . . . . . . . . . . . . . . . 36 15.6. Camera ID Registry . . . . . . . . . . . . . . . . . . . 36
16. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 37 16. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 37
17. Changes from Previous Versions . . . . . . . . . . . . . . . 37 17. Changes from Previous Versions . . . . . . . . . . . . . . . 37
17.1. Changes from draft-ietf-11 to draft-ietf-13 . . . . . . 37 17.1. Changes from draft-ietf-13 to draft-ietf-14 . . . . . . 37
17.2. Changes from draft-ietf-10 to draft-ietf-11 . . . . . . 38 17.2. Changes from draft-ietf-11 to draft-ietf-13 . . . . . . 38
17.3. Changes from draft-ietf-09 to draft-ietf-10 . . . . . . 38 17.3. Changes from draft-ietf-10 to draft-ietf-11 . . . . . . 38
17.4. Changes from draft-ietf-08 to draft-ietf-09 . . . . . . 38 17.4. Changes from draft-ietf-09 to draft-ietf-10 . . . . . . 38
17.5. Changes from draft-ietf-07 to draft-ietf-08 . . . . . . 38 17.5. Changes from draft-ietf-08 to draft-ietf-09 . . . . . . 38
17.6. Changes from draft-ietf-06 to draft-ietf-07 . . . . . . 38 17.6. Changes from draft-ietf-07 to draft-ietf-08 . . . . . . 38
17.7. Changes from draft-ietf-05 to draft-ietf-06 . . . . . . 38 17.7. Changes from draft-ietf-06 to draft-ietf-07 . . . . . . 38
17.8. Changes from draft-ietf-04 to draft-ietf-05 . . . . . . 39 17.8. Changes from draft-ietf-05 to draft-ietf-06 . . . . . . 38
17.9. Changes from draft-ietf-03 to draft-ietf-04 . . . . . . 39 17.9. Changes from draft-ietf-04 to draft-ietf-05 . . . . . . 39
17.10. Changes from draft-ietf-02 to draft-ietf-03 . . . . . . 39 17.10. Changes from draft-ietf-03 to draft-ietf-04 . . . . . . 39
17.11. Changes from draft-ietf-01 to draft-ietf-02 . . . . . . 39 17.11. Changes from draft-ietf-02 to draft-ietf-03 . . . . . . 39
17.12. Changes from draft-ietf-00 to draft-ietf-01 . . . . . . 39 17.12. Changes from draft-ietf-01 to draft-ietf-02 . . . . . . 39
17.13. Changes from draft-gellens-02 to draft-ietf-00 . . . . . 39 17.13. Changes from draft-ietf-00 to draft-ietf-01 . . . . . . 39
17.14. Changes from draft-gellens-01 to -02 . . . . . . . . . . 39 17.14. Changes from draft-gellens-02 to draft-ietf-00 . . . . . 39
17.15. Changes from draft-gellens-00 to -01 . . . . . . . . . . 40 17.15. Changes from draft-gellens-01 to -02 . . . . . . . . . . 40
17.16. Changes from draft-gellens-00 to -01 . . . . . . . . . . 40
18. References . . . . . . . . . . . . . . . . . . . . . . . . . 40 18. References . . . . . . . . . . . . . . . . . . . . . . . . . 40
18.1. Normative References . . . . . . . . . . . . . . . . . . 40 18.1. Normative References . . . . . . . . . . . . . . . . . . 40
18.2. Informative references . . . . . . . . . . . . . . . . . 41 18.2. Informative references . . . . . . . . . . . . . . . . . 41
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 42 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 42
1. Terminology 1. Terminology
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in [RFC2119]. document are to be interpreted as described in [RFC2119].
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field in the body part. The SIP message is marked as containing the field in the body part. The SIP message is marked as containing the
metadata/control block by adding (or appending to) a Call-Info header metadata/control block by adding (or appending to) a Call-Info header
field at the top level of the SIP message. This Call-Info header field at the top level of the SIP message. This Call-Info header
field contains a CID URL referencing the body part's unique field contains a CID URL referencing the body part's unique
identifier, and a 'purpose' parameter identifying the data as a identifier, and a 'purpose' parameter identifying the data as a
metadata/control block per the Emergency Call Additional Data Blocks metadata/control block per the Emergency Call Additional Data Blocks
registry entry; the 'purpose' parameter's value is registry entry; the 'purpose' parameter's value is
'emergencyCallData.control'. A metadata/control object is carried in 'emergencyCallData.control'. A metadata/control object is carried in
a SIP INFO request by using the INFO package defined in Section 11. a SIP INFO request by using the INFO package defined in Section 11.
As is necessary with message bodies, if a VEDS or a metadata/control
block is sent in the same message with another body part, a
multipart/mixed body part encloses all body parts. In some cases,
there are intermediate multipart body parts between the top level
multipart/mixed and the body part containing the VEDS or metadata/
control object.
A body part containing a VEDS or metadata/control object has a A body part containing a VEDS or metadata/control object has a
Content-Disposition header field value containing "By-Reference" Content-Disposition header field value containing "By-Reference" and
unless it is the only body part in a SIP INFO request, in which case, is always enclosed in a multipart body part. (In some cases, there
per [RFC6086], "INFO-Package" is used. might be intermediate multipart body parts between the top level
multipart/mixed and the body part containing the VEDS or metadata/
control object.)
An In-Vehicle System (IVS) initiating an NG-ACN call includes in the An In-Vehicle System (IVS) initiating an NG-ACN call includes in the
initial INVITE a VEDS data block and a metadata/control object initial INVITE a VEDS data block and a metadata/control object
informing the PSAP of its capabilities. The VEDS and metadata/ informing the PSAP of its capabilities. The VEDS and metadata/
control body parts (and PIDF-LO) have a Content-Disposition header control body parts (and PIDF-LO) have a Content-Disposition header
field with the value "By-Reference; handling=optional". Specifying field with the value "By-Reference; handling=optional". Specifying
handling=optional prevents the INVITE from being rejected if it is handling=optional prevents the INVITE from being rejected if it is
processed by a legacy element (e.g., a gateway between SIP and processed by a legacy element (e.g., a gateway between SIP and
circuit-switched environments) that does not understand the VEDS or circuit-switched environments) that does not understand the VEDS or
metadata/control (or PIDF-LO) objects. The PSAP creates a metadata/ metadata/control (or PIDF-LO) objects. The PSAP creates a metadata/
control object acknowledging receipt of the VEDS data and includes it control object acknowledging receipt of the VEDS data and includes it
in the SIP final response to the INVITE. The metadata/control object in the SIP final response to the INVITE. The metadata/control object
is not attached to provisional (e.g., 180) responses. is not attached to provisional (e.g., 180) responses.
If the IVS receives an acknowledgment for a VEDS data object with If the IVS receives an acknowledgment for a VEDS data object with
received=false, it indicates some fault with the transfer of the received=false, this indicates that the PSAP was unable to properly
VEDS, the VEDS content, or the PSAP's ability to properly receive, decode or process the VEDS. The IVS action is not defined (e.g., it
decode and act on the VEDS. The IVS action is not defined (e.g., it
might only log an error). Since the PSAP is able to request an might only log an error). Since the PSAP is able to request an
updated VEDS during the call, if an initial VEDS is unsatisfactory in updated VEDS during the call, if an initial VEDS is unsatisfactory in
any way, the PSAP can choose to request another one. any way, the PSAP can choose to request another one.
A PSAP can request that the vehicle send an updated VEDS data block A PSAP can request that the vehicle send an updated VEDS data block
during a call. To do so, the PSAP creates a metadata/control object during a call. To do so, the PSAP creates a metadata/control object
requesting VEDS data and attaches it to a SIP INFO request and sends requesting VEDS data and attaches it to a SIP INFO request and sends
it within the dialog. The IVS then attaches an updated VEDS data it within the dialog. The IVS then attaches an updated VEDS data
object to a SIP INFO request and sends it within the dialog. If the object to a SIP INFO request and sends it within the dialog. If the
IVS is unable to send the VEDS, it instead sends a metadata/control IVS is unable to send the VEDS, it instead sends a metadata/control
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'false' and a 'reason' parameter (and optionally a 'details' 'false' and a 'reason' parameter (and optionally a 'details'
parameter) indicating why the request cannot be accomplished. Per parameter) indicating why the request cannot be accomplished. Per
[RFC6086], metadata/control objects and VEDS data are sent using the [RFC6086], metadata/control objects and VEDS data are sent using the
INFO package defined in Section 11. In addition, to align with the INFO package defined in Section 11. In addition, to align with the
way a VEDS or metadata/control block is transmitted in a SIP message way a VEDS or metadata/control block is transmitted in a SIP message
other than an INFO request, one or more Call-Info header fields are other than an INFO request, one or more Call-Info header fields are
included in the SIP INFO request to reference the VEDS or metadata/ included in the SIP INFO request to reference the VEDS or metadata/
control block. See Section 11 for more information on the use of control block. See Section 11 for more information on the use of
INFO requests within NG-ACN calls. INFO requests within NG-ACN calls.
Any metadata/control object sent by a PSAP can request that the
vehicle perform an action (such as sending a data block, flashing
lights, providing a camera feed, etc.) The vehicle sends an
acknowledgement for any request other than a successfully executed
send-data action. Multiple requests with the same 'action' value
MUST be sent in separate body parts (to avoid any ambiguity in the
acknowledgement).
If the IVS is aware that VEDS data it sent previously has changed, it If the IVS is aware that VEDS data it sent previously has changed, it
MAY send an unsolicited VEDS (in any convenient SIP message, MAY send an unsolicited VEDS (in any convenient SIP message,
including an INFO request) during the call. The PSAP sends an including an INFO request) during the call. The PSAP sends an
acknowledgment of an unsolicited VEDS object (if the IVS sent the acknowledgment for an unsolicited VEDS object (if the IVS sent the
unsolicited VEDS in an INFO request, the acknowledgment is sent in a unsolicited VEDS in an INFO request, the acknowledgment is sent in a
new INFO request, otherwise it is sent in the response to the message new INFO request, otherwise it is sent in the response to the message
containing the VEDS). containing the VEDS).
7. Call Setup 7. Call Setup
A next-generation In-Vehicle System (IVS) initiates an NG-ACN call A next-generation In-Vehicle System (IVS) initiates an NG-ACN call
with a SIP INVITE using one of the SOS sub-services with a SIP INVITE using one of the SOS sub-services
"SOS.ecall.automatic" or "SOS.ecall.manual" in the Request-URI, "SOS.ecall.automatic" or "SOS.ecall.manual" in the Request-URI,
standard sets of crash data and capabilities data encoded in standard sets of crash data and capabilities data encoded in
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metadata/control data to the IVS and the IVS to respond. If control metadata/control data to the IVS and the IVS to respond. If control
data sent in a response message requests the IVS to send a new VEDS data sent in a response message requests the IVS to send a new VEDS
or other data block, or to perform an action other than sending data, or other data block, or to perform an action other than sending data,
the IVS sends the requested data or an acknowledgment regarding the the IVS sends the requested data or an acknowledgment regarding the
action in an INFO message within the dialog. action in an INFO message within the dialog.
9.1. New values for the 'action' attribute' 9.1. New values for the 'action' attribute'
The following new "action" values are defined: The following new "action" values are defined:
msg-static: displays or plays a predefined message (translated as msg-static displays or plays a predefined message (translated as
appropriate for the language of the vehicle's interface). A appropriate for the language of the vehicle's interface). A
registry is created in Section 15.4 for messages and their IDs. registry is created in Section 15.4 for messages and their IDs.
Vehicles include the highest registered message in their Vehicles include the highest registered message in their
<capabilities> element to indicate support for all messages up to <capabilities> element to indicate support for all messages up to
and including the indicated value. and including the indicated value.
msg-dynamic displays or speaks (via text-to-speech) a dynamic msg-dynamic displays or speaks (via text-to-speech) a dynamic
message included in the request. message included in the request.
honk sounds the horn. honk sounds the horn.
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The info package name is emergencyCallData.eCall.VEDS The info package name is emergencyCallData.eCall.VEDS
11.4. Info Package Parameters 11.4. Info Package Parameters
None None
11.5. SIP Option-Tags 11.5. SIP Option-Tags
None None
11.6. INFO Message Body Parts 11.6. INFO Request Body Parts
The body for an emergencyCallData.eCall.VEDS info package is:
o an application/emergencyCallData.eCall.VEDS+xml (containing a VEDS
data block), or
o an application/emergencyCallData.control+xml (containing a
metadata/control object), or
o an application/emergencyCallData.eCall.MSD+per (containing an
MSD), or
o a multipart body containing:
* zero or one application/emergencyCallData.eCall.VEDS+xml part
(containing a VEDS data block),
* zero or more application/emergencyCallData.control+xml
(containing a metadata/control object),
* zero or one application/emergencyCallData.eCall.MSD+per part The body for an emergencyCallData.eCall.VEDS info package is a
(containing an MSD), multipart body. Zero or one application/
emergencyCallData.eCall.VEDS+xml (containing a VEDS data block) part,
zero or more application/emergencyCallData.control+xml (containing a
metadata/control object) parts, and zero or one application/
emergencyCallData.eCall.MSD+per (containing an MSD) part are
permitted. Intermediate multipart body parts MAY appear.
The body parts are sent per [RFC6086], and in addition, to align with The body parts are sent per [RFC6086], and in addition, to align with
with how these body parts are sent in non-INFO messages, each with how these body parts are sent in non-INFO messages, each
associated body part is referenced by a Call-Info header field at the associated body part is referenced by a Call-Info header field at the
top level of the SIP message. If the body part is the only body top level of the SIP message. The body part has a Content-
part, it has a Content-Disposition header field value of "INFO- Disposition header field set to "By-Reference".
Package". If the body part is contained within a multipart, it has a
Content-Disposition header field value of "By-Reference".
Service providers are not expected to attach [RFC7852] Additional Service providers are not expected to attach [RFC7852] Additional
Data to an INFO request. Data to an INFO request.
See [TBD: THIS DOCUMENT] for more information. See [TBD: THIS DOCUMENT] for more information.
11.7. Info Package Usage Restrictions 11.7. Info Package Usage Restrictions
Usage is limited to vehicle-initiated emergency calls as defined in Usage is limited to vehicle-initiated emergency calls as defined in
[TBD: THIS DOCUMENT]. [TBD: THIS DOCUMENT].
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We would like to thank Lena Chaponniere, Stephen Edge, and Christer We would like to thank Lena Chaponniere, Stephen Edge, and Christer
Holmberg for their review and suggestions; Robert Sparks and Paul Holmberg for their review and suggestions; Robert Sparks and Paul
Kyzivat for their help with the SIP mechanisms; Michael Montag, Kyzivat for their help with the SIP mechanisms; Michael Montag,
Arnoud van Wijk, Ban Al-Bakri, Wes George, Gunnar Hellstrom, and Rex Arnoud van Wijk, Ban Al-Bakri, Wes George, Gunnar Hellstrom, and Rex
Buddenberg for their feedback; and Ulrich Dietz for his help with Buddenberg for their feedback; and Ulrich Dietz for his help with
earlier versions of the original version of this document. earlier versions of the original version of this document.
17. Changes from Previous Versions 17. Changes from Previous Versions
17.1. Changes from draft-ietf-11 to draft-ietf-13 17.1. Changes from draft-ietf-13 to draft-ietf-14
o Body parts now always sent enclosed in multipart (even if only
body part in SIP message) and hence always have a Content-
Disposition of By-Reference
o Fixed typos.
17.2. Changes from draft-ietf-11 to draft-ietf-13
o Fixed typos o Fixed typos
17.2. Changes from draft-ietf-10 to draft-ietf-11 17.3. Changes from draft-ietf-10 to draft-ietf-11
o Clarifications suggested by Christer o Clarifications suggested by Christer
o Corrections to Content-Disposition text and examples as suggested o Corrections to Content-Disposition text and examples as suggested
by Paul Kyzivat by Paul Kyzivat
o Clarifications to Content-Disposition text and examples to clarify o Clarifications to Content-Disposition text and examples to clarify
that handling=optional is only used in the initial INVITE that handling=optional is only used in the initial INVITE
17.3. Changes from draft-ietf-09 to draft-ietf-10 17.4. Changes from draft-ietf-09 to draft-ietf-10
o Fixed errors in examples found by Dale in eCall draft o Fixed errors in examples found by Dale in eCall draft
o Removed enclosing sub-section of INFO package registration section o Removed enclosing sub-section of INFO package registration section
o Added text per Christer and Dale's suggestions that the MSD and o Added text per Christer and Dale's suggestions that the MSD and
metadata/control blocks are sent in INFO with a Call-Info header metadata/control blocks are sent in INFO with a Call-Info header
field referencing them field referencing them
o Other text changes per comments received from Christer and Ivo o Other text changes per comments received from Christer and Ivo
against eCall draft. against eCall draft.
17.4. Changes from draft-ietf-08 to draft-ietf-09 17.5. Changes from draft-ietf-08 to draft-ietf-09
o Added INFO package registration for eCall.VEDS o Added INFO package registration for eCall.VEDS
o Moved <capabilities> element and other extension points back to o Moved <capabilities> element and other extension points back to
eCall document so that extension points are in base spec (and also eCall document so that extension points are in base spec (and also
to get XML schema to compile) to get XML schema to compile)
o Text changes for clarification. o Text changes for clarification.
17.5. Changes from draft-ietf-07 to draft-ietf-08 17.6. Changes from draft-ietf-07 to draft-ietf-08
o Moved much of the metadata/control object from o Moved much of the metadata/control object from
[I-D.ietf-ecrit-ecall] to this document as extensions [I-D.ietf-ecrit-ecall] to this document as extensions
o Editorial clarifications and simplifications o Editorial clarifications and simplifications
o Moved "Call Routing" to be a subsection of "Call Setup" o Moved "Call Routing" to be a subsection of "Call Setup"
o Deleted "Profile" section and moved some of its text into o Deleted "Profile" section and moved some of its text into
"Introduction" "Introduction"
17.6. Changes from draft-ietf-06 to draft-ietf-07 17.7. Changes from draft-ietf-06 to draft-ietf-07
o Minor editorial changes o Minor editorial changes
17.7. Changes from draft-ietf-05 to draft-ietf-06 17.8. Changes from draft-ietf-05 to draft-ietf-06
o Added clarifying text regarding signed and encrypted data o Added clarifying text regarding signed and encrypted data
o Additional informative text in "Migration to Next-Generation" o Additional informative text in "Migration to Next-Generation"
section section
o Additional clarifying text regarding security and privacy. o Additional clarifying text regarding security and privacy.
17.8. Changes from draft-ietf-04 to draft-ietf-05 17.9. Changes from draft-ietf-04 to draft-ietf-05
o Reworded security text in main document and in MIME registration o Reworded security text in main document and in MIME registration
for the VEDS object for the VEDS object
17.9. Changes from draft-ietf-03 to draft-ietf-04 17.10. Changes from draft-ietf-03 to draft-ietf-04
o Added example VEDS object o Added example VEDS object
o Additional clarifications and corrections o Additional clarifications and corrections
o Removed references from Abstract o Removed references from Abstract
o Moved Document Scope section to follow Introduction o Moved Document Scope section to follow Introduction
17.10. Changes from draft-ietf-02 to draft-ietf-03 17.11. Changes from draft-ietf-02 to draft-ietf-03
o Additional clarifications and corrections o Additional clarifications and corrections
17.11. Changes from draft-ietf-01 to draft-ietf-02 17.12. Changes from draft-ietf-01 to draft-ietf-02
o This document now refers to [I-D.ietf-ecrit-ecall] for technical o This document now refers to [I-D.ietf-ecrit-ecall] for technical
aspects including the service URN; this document no longer aspects including the service URN; this document no longer
proposes a unique service URN for non-eCall NG-ACN calls; the same proposes a unique service URN for non-eCall NG-ACN calls; the same
service URN is now used for all NG-ACN calls including NG-eCall service URN is now used for all NG-ACN calls including NG-eCall
and non-eCall and non-eCall
o Added discussion of an NG-ACN call placed to a PSAP that doesn't o Added discussion of an NG-ACN call placed to a PSAP that doesn't
support it support it
o Minor wording improvements and clarifications o Minor wording improvements and clarifications
17.12. Changes from draft-ietf-00 to draft-ietf-01 17.13. Changes from draft-ietf-00 to draft-ietf-01
o Added further discussion of test calls o Added further discussion of test calls
o Added further clarification to the document scope o Added further clarification to the document scope
o Mentioned that multi-region vehicles may need to support other o Mentioned that multi-region vehicles may need to support other
crash notification specifications such as eCall crash notification specifications such as eCall
o Minor wording improvements and clarifications o Minor wording improvements and clarifications
17.13. Changes from draft-gellens-02 to draft-ietf-00 17.14. Changes from draft-gellens-02 to draft-ietf-00
o Renamed from draft-gellens- to draft-ietf- o Renamed from draft-gellens- to draft-ietf-
o Added text to Introduction to clarify that during a CS ACN, the o Added text to Introduction to clarify that during a CS ACN, the
PSAP call taker usually needs to listen to the data and transcribe PSAP call taker usually needs to listen to the data and transcribe
it it
17.14. Changes from draft-gellens-01 to -02 17.15. Changes from draft-gellens-01 to -02
o Fixed case of 'EmergencyCallData', in accordance with changes to o Fixed case of 'EmergencyCallData', in accordance with changes to
[RFC7852] [RFC7852]
17.15. Changes from draft-gellens-00 to -01 17.16. Changes from draft-gellens-00 to -01
o Now using 'EmergencyCallData' for purpose parameter values and o Now using 'EmergencyCallData' for purpose parameter values and
MIME subtypes, in accordance with changes to [RFC7852] MIME subtypes, in accordance with changes to [RFC7852]
o Added reference to RFC 6443 o Added reference to RFC 6443
o Fixed bug that caused Figure captions to not appear o Fixed bug that caused Figure captions to not appear
18. References 18. References
18.1. Normative References 18.1. Normative References
 End of changes. 34 change blocks. 
81 lines changed or deleted 76 lines changed or added

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