Hi users

          I noticed some strange thing yesterday when i made a SIP-SIP call everytthing was O.K , when I made SIP-Pstn local call its pretty good BUT When I made SIP-PSTN (international) I am Hearing my Voice back at Some stages , I tried for lot of calls but i dont understand where actually the problem is creating ,

                   Can any body please solve this "ECHO" problem
Thanks.

Regards,
Ravi.