All, I have downloaded and installed openh323 as per the documentation. When the machine now reboots safe_asterisk just keeps restarting. If I start another session and just load asterisk -vvvvvvvgc asterisk loads. If I enter noload chan_h323.so in the modules.conf then safe_asterisk will kick in. Not 100% on Linux yet but I have added the environment variables info into /etc/profile so they would load each time a reboot takes place, (thought this is the right place). If I do export, the list doesn't show the environment variables, so I assume I have added them in the wrong place. This I assume is why h323 is failing. Anyone point me in the right direction as to where to load these variables, so they load every time? Thanks Dave