I'm using pjsua for a SIP phone project, where laptops will act as speaker phones. I'm using pjproject 1.8.10, and I even if echo cancellation is enabled (as far as I know), the echo is annoying. I'm not using the speex codex, so I guess the suppression is non optimal at the moment. Is there any recent progress/improvements that can improve the quality of the acoustic suppression? Jarle -- Jarle Aase email: jgaa at jgaa.com Author of Free Software. http://www.jgaa.com War FTP Daemon: http://www.warftp.org Other free software: http://products.jgaa.com NB: If you reply to this message, please include all relevant information from the conversation in your reply. Thanks. <<< no need to argue - just kill'em all! >>>