I'm the one with the Debut. Currently it is interfaced to the DSU II via an ATI-D but I cannot dial into the VM. The first question is what baud rate do I set the com port on the DSU (and then the Debut) for serial integration? This is one of the very first units Key Voice manufactured for Comdial approximately 6 years ago. I have never used it, but I recall that it was an analog system. Any help would be great. The VM need is not too sophisticated so even if all programming is not accessible via the telephone key pad, I'm sure a base level can be established?! Joe