Hi there, I got another question. We use several digium cards without hardware echo cancelation. The software echo cancelation does not work well at the moment - especially at the beginning of the call. I already read the articels about echo on voip-info. Is there a rule of thumb or best practice how to find the correct settings or is it just try and error? Thanks Chris -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-ss7/attachments/20070215/c2f176bd/attachment.htm