Hi Deepika, please send dmesg output after dahdi restart. Do you have a vpm450 installed on the boards? You might have echocan problems. Also have you tried disabling echocancellations completely? kindest regards Pavel On May 20, 2010, at 3:57 PM, Deepika Nijhawan wrote: > > I monitored after call is established. I am making call from asterisk to telsis. When call is established I should hear an audio from telsis. > So, on monitor it is showing on RX and nothing on TX (I guess because I am not transmitting anything). > > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-ss7/attachments/20100520/8b06464e/attachment.htm