Hi all, I am interested to know what is the best possible set of parameters to use along with pjsua on a laptop running win7 while using the built in mic and speakers, so as to achieve best possible echo cancellation. I have tried setting *--quality* =10 and increasing the *--ec-tail *value and also tried the 3 different echo canceller algorithms for * --ec-opt. *Still I haven't been able to achieve satisfactory echo cancellation. The far side doesn't hear any echo when using the same laptop for communications using Skype or even GoogleTalk. What would be the best possible configuration to use to get similar echo cancellation experience while using PJSIP. Any help on this would be appreciated. Thank you. Regards, Sandeep -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20120402/19618024/attachment.html>