You can go to this site and download the "converter". It looks much like "Windows Explorer", the bottom window is were you will drag your Wav. or MP3 files to. If the files turn blue in the window you have successfully converted that file to RAW. I believe their is a Kb limit to the file for CallManager! Just look at the exitsting files "RAW". earnest.slaughteriii@verizonwireless.com Let me know how it turns out, good luck!