Reviewer: Peter Yee Review result: Ready with Nits I am the assigned Gen-ART reviewer for this draft. The General Area Review Team (Gen-ART) reviews all IETF documents being processed by the IESG for the IETF Chair. Please treat these comments just like any other last call comments. For more information, please see the FAQ at <https://trac.ietf.org/trac/gen/wiki/GenArtfaq>. Document: draft-ietf-sipcore-status-unwanted-04 Reviewer: Peter Yee Review Date: 2017-03-21 IETF LC End Date: 2017-03-21 IESG Telechat date: Not scheduled for a telechat Summary: This draft specifies a SIP response code for the callee to indicate that the call is unwanted. It goes to great lengths to specify what may be done as a result of sending this response code, all the while mandating nothing. The document has a couple of nits, but nothing seriously wrong. [Ready with nits] Major issues: None Minor issues: None Nits/editorial comments: Page 4, 1st full paragraph, 2nd sentence: I can't parse this sentence as written. It appears to be a list, but then has a clause (starting at "based on") that doesn't fit neatly in the sequence. Perhaps inserting "and" before "based" would help. Append "as" after "well". Page 5, Section 6, 2nd paragraph, 1st sentence: change "extract" to "exact".