Hello, Just for information : Broadcom has developped a new high quality speech and open source codec : BroadVoice. It seems to have many benefits. Maybe, in the future, PJSip will include this codec ? Here is presentation adn download page : http://www.broadcom.com/support/broadvoice/ Here is comparision with other codecs : http://www.broadcom.com/support/broadvoice/codec_comparison.php King regards, Greg