Hi, I have a PBX on which I need to be able to record conferences. It looks like the best way to do this is to use the option in freepbx. However this system only has freepbx 2.3, and the record conference option apparently wasn't available until 2.4. I'd like to know if/how I can SAFELY upgrade to freepbx 2.4 on elastix 1.0-17. This needs to be basically 100% safe as I don't have physical access to the system (which is also the reason I can't just install a later version of elastix). Thanks for any info.