Hi, I have reviewed this document as part of the Operational directorate's ongoing effort to review all IETF documents being processed by the IESG. These comments were written primarily for the benefit of the operational area directors. Document editors and WG chairs should treat these comments just like any other last call comments. This document essentially only registers a new value in the IANA SIP Common Log Format "Transport Flag" registry in order to properly identify WebSocket as a transport for SIP. The intended status is standards track. I believe this document creates no operational issues. Having a proper flag allocated for the WebSocket transport of SIP messages is actually a good thing from an operational point of view. There may be editorial issues (e.g. references in the abstract) that will have to be sorted out with the RFC editor. /js -- Juergen Schoenwaelder Jacobs University Bremen gGmbH Phone: +49 421 200 3587 Campus Ring 1, 28759 Bremen, Germany Fax: +49 421 200 3103 < http://www.jacobs-university.de/ >