I am the assigned Gen-ART reviewer for this draft. For background on Gen-ART, please see the FAQ at   Document:                         draft-ietf-payload-rtp-opus-08   Reviewer:                           Christer Holmberg   Review Date:                     11 April 2015   IETF LC End Date:             17 February 2015   IETF Telechat Date:         9 April 2015   Summary:        Most of the comments I gave on a previous version of the document have been addressed. However, it seems like one of the comments have not been addressed.   Major Issues: None   Minor Issues: I previously gave the following comment:   “Regarding SDP, I think it would be good to have the ABNF syntax for the a=fmtp parameter (currently you only have descriptive text of the different parameters). It makes the life for the parser implementers much easier :)”   I guess one, by reading section 7 and the examples, can figure out how to encode the a=fmtp parameter, but I think it would to explicitly define the syntax.     Editorial nits: None