Just did my test, called myself from home, let it go to VM, dialed in, (and even managed to actually get it downloaded with very spotty service). Had a TINY bit of noise in the message, but by no means overwhelming or obnoxious. Sounded pretty much as I would expect most voice mails to sound, even on the normal system. I'm sure I'll have more chances to test it, probably will do so again tomorrow at work, just to see what happens. If I remember after work tomorrow, I'll post back what I end up with.