Does anyone know how I can play audio out of the earpiece instead of from the speaker on a 6630?

Specifically I'd like to be able to stream to the earpiece using MMdaAudioOutputStream. It's very annoying that everything seems to come out so that *everyone* can hear it.
(BTW, I mean the bit that you press to your ear when using the phone normally, not a bluetooth earpiece or a wired one)

I notice that this has been posted before about other Series 60 phones but no one has answered. Is this because it is still not possible, or is no one really sure, or what?

Could anyone give us an official reply from Nokia on this issue?