.VOX format issue with Adobe Audition

We currently use Cool Edit 16-bit to create .VOX files for a SunGard IVR system.  We want to convert to Adobe Audition to create our .VOX files. However, when we create .VOX files in Adobe Audition they are not readable by the SunGard IVR system or the Cool Edit 16-bit software.  Both are 8000 MHz samples.  What are we missing?  Are there products other than Adobe Audition that can create compatible .VOX files?