If you can suspend your disbelief enough to believe that you're in a world when you're reading text on a screen and typing on a keyboard, I'm sure you can suspend your disbelief enough when real voices are involved. Just like a keyboard, it's another method of transferring information that has its upsides and downsides.
In any case, we already had dropped this idea as it's not of enough interest to enough players.
--matt
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