Hello Every body. I am quite stuck at the moment. I am using X-Lite, and you see when I call say a Cell phone number then the call works fine - voice is on both sides. But when I call through to a Land line then no voice is heard on the other side from me, but I hear the person speaking to me. Both calls go through the same TDM400P Card, the same port on the card and the same phone line. I am using SIP as a protocol. When the call is made from within, say extension to extension on normal phones - there is no problem at all. It is only when it goes out to the public telephone system does it look like to be an issue - but why does the cell phone work? I am quite desperate at the moment and would like any feedback on how to try and fix the problem. BTW if it matters, using Zone 24 (South Africa). I have had some problems to get it compiled and working... but now it is only this problem. -- Kind Regards Etienne