13. IANA Considerations

This section registers the SIP Event header field parameter 'shared', the SIP Alert-Info header field parameter 'appearance', and the XML namespace extensions to the SIP Dialog Package.

13.1. SIP Event Header Field Parameter: shared

This document defines the 'shared' header field parameter in the Event header field in the "Header Field Parameters and Parameter Values" registry defined by [RFC3968].

Header Field	Parameter Name	Predefined Values	Reference
Event	shared	No	RFC 7463

13.2. SIP Alert-Info Header Field Parameter: appearance

This document defines the 'appearance' parameter in the Alert-Info header in the "Header Field Parameters and Parameter Values" registry defined by [RFC3968].

Header Field	Parameter Name	Predefined Values	Reference
Alert-Info	appearance	No	RFC 7463

13.3. URN Sub-Namespace Registration: sa-dialog-info

This section registers a new XML namespace per the procedures in [RFC3688].

URI: urn:ietf:params:xml:ns:sa-dialog-info.

Registrant Contact: IETF BLISS working group, <[email protected]>, Alan Johnston <[email protected]>

XML:

BEGIN
 <?xml version="1.0"?>
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML Basic 1.0//EN"
           "http://www.w3.org/TR/xhtml-basic/xhtml-basic10.dtd">
 <html xmlns="http://www.w3.org/1999/xhtml">
 <head>
   <meta http-equiv="content-type"
      content="text/html;charset=iso-8859-1"/>
   <title>Shared Appearance Dialog Information Namespace</title>
 </head>
 <body>
  <h1>Namespace for Shared Appearance Dialog Information</h1>
  <h2>urn:ietf:params:xml:ns:sa-dialog-info</h2>
  <p>See <a href="http://www.rfc-editor.org/rfc/rfc7463.txt">
     RFC 7463</a>.</p>
 </body>
 </html>
END

13.4. XML Schema Registration

This section registers an XML schema per the procedures in [RFC3688].

URI: urn:ietf:params:xml:schesa:sa-dialog-info.

Registrant Contact: IETF BLISS working group, <[email protected]>, Alan Johnston <[email protected]>

The XML for this schema can be found in Section 6.