I figured my T-Zones was just acting weird because of me being a new customer, but it turns out that they are upgrading voice and data systems here (that's what they told me). So T-Zones will give you a message like "Your plan does not support this feature." They said it should be fixed my the 31st. And like I said above, they said they're updating voice and data systems. Does this mean the voicemail system is being updated, too?