Hi friends, Recently, i was trying to call to a PSTN number from my sip enabled hard phone ,during the same process another guy in the same network was trying to call from another sip phone to a different PSTN phone .I was able to hear the conversation from the other guy (but just from the sip-pstn direction not from pstn-sip direction) while i was calling. what could have caused this problem??is this a problem in the proxy server or from sip side or in the PSTN network. please,give an insight in this matter and what could be the possible solutions to avert such problems in future. thanks in advance!!! john smith -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20101208/83f4c2a8/attachment.html>