Hello, I would like to point everyone's attention to a proposal to create a new IETF working group dedicated to standardising unencumbered audio codecs. There will be a BoF at the next IETF meeting (26-31 July) in Stockholm to discuss that. I encourage those interested in taking part in the mailing list discussion ( https://www.ietf.org/mailman/listinfo/codec ) and/or attending the BoF in Stockholm. I will be co-chairing this BoF with Jason Fischl from Skype. There is already a first codec submission, as we just submitted an Internet draft for the CELT codec ( http://www.ietf.org/internet-drafts/draft-valin-celt-codec-00.txt ). CELT is a full-bandwidth, ultra low-delay audio codec for high-quality VoIP. The version submitted is 0.6.0, which has just been released. You can get it from the website: http://www.celt-codec.org/ . Cheers, Jean-Marc