A new Request for Comments is now available in online RFC libraries. RFC 6993 Title: Instant Messaging and Presence Purpose for the Call-Info Header Field in the Session Initiation Protocol (SIP) Author: P. Saint-Andre Status: Informational Stream: IETF Date: July 2013 Mailbox: psaintan@cisco.com Pages: 5 Characters: 7431 Updates/Obsoletes/SeeAlso: None I-D Tag: draft-saintandre-impp-call-info-04.txt URL: http://www.rfc-editor.org/rfc/rfc6993.txt This document defines and registers a value of "impp" ("instant messaging and presence protocol") for the "purpose" header field parameter of the Call-Info header field in the Session Initiation Protocol (SIP). INFORMATIONAL: This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. This announcement is sent to the IETF-Announce and rfc-dist lists. To subscribe or unsubscribe, see http://www.ietf.org/mailman/listinfo/ietf-announce http://mailman.rfc-editor.org/mailman/listinfo/rfc-dist For searching the RFC series, see http://www.rfc-editor.org/search/rfc_search.php For downloading RFCs, see http://www.rfc-editor.org/rfc.html Requests for special distribution should be addressed to either the author of the RFC in question, or to rfc-editor@rfc-editor.org. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. The RFC Editor Team Association Management Solutions, LLC