Benny, It worked!, thanks a lot. I was typing without the "./" because I was on the directory where the executable was. But it's ok, I'll find out. King Dave That's the pjsua executable that you're looking for. > -bash:pjsua-i686-pc-linux-gnu command not found. Have you tried running ./pjsua-i686-pc-linux-gnu? Lacking the "./" will make bash look for the executable in your PATH. Cheers Benny