Trying to get a plantronics 510s headset working with skype (among other 
things) and I'm tantalizingly close. Hopefully someone can help close 
the gap.

I go the headset working for input and output with headsetd and headset 
plug-in: aplay and arecord -D headset working A-OK - my .asoundrc 
attached. Then I tried aoss skype - it *almost* worked. I could hear OK 
thru the headset but my voice was weirdly distorted and unrecognizable. 
I decided to recompile off the CVS head and now nothing works I get
  ALSA lib pcm_sco.c:532:(_snd_pcm_sco_open) Unknown field max_periods

Probably I have some mish-mash of versions installed, it's too late at 
night.

So what I'd like to know to speed my quest tomorrow:
 * In CVS there are multiple headsetd and alsa-plugins under plugz, 
btsco and alsa-plugin-sco. Which is the right one?
 * Maybe the distortion indicates some transformation of sound formats 
is needed - any hints as to what it might be?
 * Is there a better way than aoss for skype? It only shows alsa 
hardware devices in it's menus, I haven't found a way to make it use a PCM.
 * Any other  tips on what might be going wrong, or better ways to 
approach this?

I'll be happy to post my solution to the list if that's useful.

Thanks,
Alan.