Long time lurker. Installed Youmail on my Eris and tested it out by calling myself simultaneously using phones I had around the home. Turns out only one went to the customized Youmail greeting and everything else went to the old greeting which I couldn't access unless I de-fowarded my missed calls. I looked up and couldn't find this problem anywhere so I posted my experience here. I receive well over 50 calls during work, most of which occur around the same time and I don't have time to call the number to de-forward and re-foward my missed calls. Well that's my experience.