this is how bluetooth headset work (doesn't it beep when it gets connected to your phone?) - it sends AT connect commands.

the problem is that nokia optimizes the power consumption (we all like that). so it cuts out even the sound. If you have a N800, let it inactive, then when the screen turns black, tap on it. if you listen carefully you should here a very very low static - the speakers are turned on somehow. (let it a few seconds, the noise will disapear again after the screen is turned of)


The same happens with audio via bt, i suspect it uses the same sub-system (hence the on/off logic)

So the solution would be not to save power on the sound subsystem, or to hack the bluetooth system not to disconnect when the request comes from this power-saving feature (yep, not a bug, a feature )

if you want something without the beeping, try a some bt heansets with A2DP, or ask someone to hack the os2008 (my vacation will come soon ... ... losts of freeeeeeeeee timee )