Unlisten to Messages

I like how my email lets me check off emails as "unread." This is good for when I check my email early in the morning when I'm still out of it, I can mark an important email as unread and I will be more likely to come back to it when I am a little less dazed.

The idea is to have the same kind of feature for voicemail and answering machines for the same reason mentioned above, but it would also be good if you live in a house with an answering machine and you listen to a message that's left for another person in the house. You can push a button to mark the message as unlistened to so the answering machine still does whatever it does to alert you there is a new message.