(RFC 6739 published October 2012, subtype last updated October 2012) Type name: application Subtype name: lostsync+xml Required parameters: none Optional parameters: charset Same as charset parameter of application/xml as specified in RFC 3023 [RFC3023]. Encoding considerations: Identical to those of "application/xml" as described in [RFC3023], Section 3.2. Security considerations: This content type is designed to carry LoST Synchronization protocol payloads, and the security considerations section of RFC 6739 is applicable. In addition, as this media type uses the "+xml" convention, it shares the same security considerations as described in [RFC3023], Section 10. Interoperability considerations: None Published specification: RFC 6739 Applications that use this media type: Emergency and Location-based Systems Additional information: Magic number(s): None File extension(s): .lostsyncxml Macintosh file type code(s): 'TEXT' Person & email address to contact for further information: Hannes Tschofenig Intended usage: LIMITED USE Restrictions on usage: None Author: Hannes Tschofenig Change controller: This specification is a work item of the IETF ECRIT working group, with mailing list address . Change controller: The IESG