(RFC 4575 published August 2006, subtype last updated August 2006) MIME media type name: application MIME subtype name: conference-info+xml Mandatory parameters: none Optional parameters: Same as charset parameter application/xml as specified in RFC 3023 [7] Encoding considerations: Same as encoding considerations of application/xml as specified in RFC 3023 [7] Security considerations: See Section 10 of RFC 3023 [7] and Section 8 of this specification Interoperability considerations: none Published specification: This document Applications which use this media type: This document type has been used to support SIP conferencing applications Additional Information: Magic Number: None File Extension: .xml Macintosh file type code: "TEXT" Personal and email address for further information: IETF SIPPING Working Group , as designated by the IESG Intended usage: COMMON Author/Change controller: IETF SIPPING Working Group , as designated by the IESG )