--- 1/draft-ietf-sipcore-content-id-08.txt	2017-09-01 03:13:09.981831535 -0700
+++ 2/draft-ietf-sipcore-content-id-09.txt	2017-09-01 03:13:10.009832207 -0700
@@ -1,19 +1,19 @@
 
 SIPCORE Working Group                                        C. Holmberg
 Internet-Draft                                               I. Sedlacek
 Updates: 5621, 5368, 6442 (if approved)                         Ericsson
-Intended status: Standards Track                         August 31, 2017
-Expires: March 4, 2018
+Intended status: Standards Track                       September 1, 2017
+Expires: March 5, 2018
 
       Content-ID header field in Session Initiation Protocol (SIP)
-                    draft-ietf-sipcore-content-id-08
+                    draft-ietf-sipcore-content-id-09
 
 Abstract
 
    This document specifies the Content-ID header field for usage in the
    Session Initiation Protocol (SIP).  The document also updates RFC
    5621, which only allows a Content-ID URL to reference a body part
    that is part of a multipart message-body.  This update enables a
    Content-ID URL to reference a complete message-body and metadata
    provided by some additional SIP header fields.
 
@@ -28,21 +28,21 @@
    Internet-Drafts are working documents of the Internet Engineering
    Task Force (IETF).  Note that other groups may also distribute
    working documents as Internet-Drafts.  The list of current Internet-
    Drafts is at http://datatracker.ietf.org/drafts/current/.
 
    Internet-Drafts are draft documents valid for a maximum of six months
    and may be updated, replaced, or obsoleted by other documents at any
    time.  It is inappropriate to use Internet-Drafts as reference
    material or to cite them other than as "work in progress."
 
-   This Internet-Draft will expire on March 4, 2018.
+   This Internet-Draft will expire on March 5, 2018.
 
 Copyright Notice
 
    Copyright (c) 2017 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
@@ -278,25 +278,25 @@
       and
 
    o  Updates [RFC5621], to enable a Content-ID URL to reference a
       complete message-body and metadata provided by some additional SIP
       header fields.
    o  Updates [RFC5368] and [RFC6442] by adding explicit text saying
       that a SIP Content-ID header field can be used.
 
 1.6.  Backward compatibility
 
-   If an existing specification explicitly defines the usage of a
-   multipart message-body for carrying a single body part, that
-   specification MUST be updated in order to allow usage of a non-
-   multipart message-body for carrying the MIME entity, and for
-   referencing the whole message-body using a Content-ID URL.
+   If an existing specification only defines the usage of a multipart
+   message-body for carrying a single body part to be referenced by a
+   Content-ID URL, implementations MUST NOT carry the MIME entity in a
+   non-multipart message-body unless the specification is updated to
+   explicitly allow it.
 
 2.  Conventions
 
    The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
    "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
    document are to be interpreted as described in [RFC2119].
 
 3.  Content-ID header field
 
 3.1.  Introduction
@@ -510,20 +510,24 @@
       Header Name:  Content-ID
 
       compact:
 
       Reference:  RFCXXXX
 
 9.  Change log
 
    [RFC EDITOR NOTE: Please remove this section when publishing]
 
+   Changes from draft-ietf-sipcore-content-id-08
+
+   o  Editorial change based on comment from Ben Campbell.
+
    Changes from draft-ietf-sipcore-content-id-07
 
    o  Updates to affected RFCs.
    o  Editorial changes and clarifications based on IESG review.
 
    Changes from draft-ietf-sipcore-content-id-06
 
    o  Editorial changes and clarifications based on Gen-ART review from
       Elwyn Davies.