Seems to me that it depends how much you are prepared to get inside the new answering machine: If you disconnect the mike and put a resistance in line with the line-out of your PC, you could make a near perfect transcription.
However, it also seems to me, that having gone to all that trouble, on any answering machine I've used, it would be much too easy for your grandmother to delete the recording.
Wouldn't it be much simpler just to give her a CD of her husband's voice?
Sorry, I think I've missed the point here: You want to keep it as the ougoing message, not just as a keepsake? In which case ignore my last two paras.
Edited by boxer (24/09/2010 08:10)
Edit Reason: my stupidity
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Politics and Ideology: Not my bag