Visual Voicemail Concept

This is an old, simple concept for a visual voicemail app I did in my spare time a few years back.

A friend of mine thought about developing it and asked me for some UI help. I'm not quite sure about the details anymore, but as far as I recall the API could be accessed and so everyone could write their own app to capture the voicemails from "3". We never developed it. When I stumbled upon the screens by accident today, I thought I could put them up here. Feel free to criticise and give feedback. Keep in mind it's pretty old ;)

Cheers