Hi all, I have reviewed draft-ietf-sipcore-originating-cdiv-parameter-05 as part of the Operational directorate's ongoing effort to review all IETF documents being processed by the IESG. These comments were written with the intent of improving the operational aspects of the IETF drafts. Comments that are not addressed in last call may be included in AD reviews during the IESG review. Document editors and WG chairs should treat these comments just like any other last call comments. “The P-Served-User header field is used to convey the identity of the served user and the session case that applies to this particular communication session and application invocation. This document updates RFC5502 by defining a new P-Served-User header field parameter, "orig-cdiv". The parameter conveys the session case used by a proxy when handling an originating session after Call Diversion (CDIV) services have been invoked for the served user. This document also fixes the ABNF in RFC 5502 and provides more guidance for using the P-Served-User header field in IP networks.” My overall view of the document is 'Ready' for publication. ** Technical ** No. (As a new reviewer to SIP) ** Editorial ** As noted by author, [RFCXXXX↓] need to be replaced with the RFC number of this document. Regards, Will (Shucheng LIU)