Several months ago, I looked into using VoIP. I was serious into Vonage, and even looked at selling LightYear's service. I did some very brief research and decided NOT to use VoIP because the voice data was unencrypted once it went out on the wire. It was tough to stick to my decision, and people tried to convince me otherwise; however, I'm glad I did. Want to know how easy it is? Here is a link to an article on dslreports.com describing how easy it is to "tap" a VoIP call. Enjoy!