Is This A Wind-up?

On the endlessly fascinating topic of mobile phones, I was interested yesterday to discover that a German has invented a phone that allows you to talk to your dead relative for up to a year! Fortunately or unfortunately, the phone doesn't allow them to talk back (I think this is in order to preserve the battery).

This device would have many uses including totally removing the need for long-term spouses to talk to each other while alive. If the worst happened, and you still had one or two topics to cover you would then have a whole year to speak your mind without the fear of interruption (I'm joking, honest, Wosog)!

I wonder what you do if you phone up after a couple of weeks to get the message: "The vodafone you have dialled is switched off."?