Hi Can anyone help me with my problem? We deployed an asterisk box with libss7. We used OpenVox's D410P/D410E cards. Everything is up and running (CIC etc.), except when we tried calling we get echo on Voip extensions. We tried isolating it. PSTN -> Asterisk -> SIP extensions ..... noticeable echo PSTN -> Asterisk -> PSTN ..... no echo SIP -> Asterisk -> SIP ..... no echo SIP -> Asterisk -> PSTN .... echo on SIP extension We tried every zapata.conf echo canceller combination and we also tried compiling other zaptel echo cancellers including OSLEC. But to no avail. Do I need to do anything else to enable echo cancelling for libss7? Thanks in advance Chris -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-ss7/attachments/20080410/62b6681c/attachment.htm