The IESG has received a request from an individual submitter to consider the following document: - 'A Session Identifier for the Session Initiation Protocol (SIP)' <draft-kaplan-insipid-session-id-03.txt> as Informational RFC The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2013-08-30. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Note that this IETF last call is not intended to form IETF consensus on the content of this document. Consequently, the IESG is only looking for comments on the value of publishing this document as-is, not for comments on the content of the document. Abstract This RFC, which contains the text of an individual Internet Draft that was submitted originally to the DISPATCH Working Group, is being published now as an Informational document to provide a reference for later RFCs. The mechanism defined in this document has been widely deployed, and is being followed in a backward- compatible fashion for a new Standards Track RFC in the INSIPID Working Group. The original Abstract follows. There is a need for having a globally unique session identifier for the same SIP session, which can be consistently maintained across Proxies, B2BUAs and other SIP middle-boxes, for the purpose of Troubleshooting. This draft proposes a new SIP header to carry such a value: Session-ID. The file can be obtained via http://datatracker.ietf.org/doc/draft-kaplan-insipid-session-id/ IESG discussion can be tracked via http://datatracker.ietf.org/doc/draft-kaplan-insipid-session-id/ballot/ No IPR declarations have been submitted directly on this I-D.