I have a UC500 solution for one of my customers for 20 users. It looks like they had another proposal from Dell for a Fonality system for which the price was quoted almost 45% lower than my solution. Has anyone had any experience with Fonality? I was told that the front price includs all upgrads and also attendant consol feature which uc500 doesn't offer. Personally, I don't have any experience with Dell solution. Is there anybody who can give me some insight (Pros & Cons)?