I am the assigned Gen-ART reviewer for this draft. For background on Gen-ART, please see the FAQ at <http://wiki.tools.ietf.org/area/gen/trac/wiki/GenArtfaq>. Please resolve these comments along with any other Last Call comments you may receive. Document: draft-ietf-siprec-architecture-11 Reviewer: Russ Housley Review Date: 2014-01-03 IETF LC End Date: 2013-10-01 IESG Telechat date: 2014-01-09 Summary: Thank you for addressing the issues raised in my previous review. This document is ready for publication as an Informational RFC. Major Concerns: None. Minor Concerns: None. Editorial Comments: The changes to Section 3.2.4 to resolve my earlier comment have introduced a clarity problem. I suggest a minor rewording to fix it. 3.2.4. Media Stream Mixing In a basic session involving only audio there are typically two audio/RTP streams between the two UAs involved transporting media in each direction. When recording this media, the two streams may be mixed or not mixed at the SRC before being transmitted to the SRS. In the case when they are not mixed, two separate streams are sent to the SRS. In the mixed case, a single mixed media stream is sent to the SRS. However, in the case when the media streams are not mixed, the SDP offer sent to the SRS must describe two separate media streams.