It appears that I am getting echo only on the SIP side of a SIP -> TDM call. I am using polycom IP500's with a 4 port fxo TDM E/F model. I get this echo after about 2-5 minutes and after another 2-5 minutes the echo disappears. It does not appear that the other side (TDM) can hear the echo only myself. Does anyone have any recommendations on what to check, or what this might be? Thanks, Jared Armstrong -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20051011/f6b8a8b5/attachment.htm