Comment 5 for bug 240666

If this is a problem specifically with Skype, they may have fixed it at their end...

This post details some updates for the current dev. version:

"We've completely rewritten the audio library, and have spent considerable effort transforming the existing audio code into a form more suitable for Skype. We've also fixed some compatibility issues with Bluetooth headsets."

http://share.skype.com/sites/linux/2009/01/skype_for_linux_updates.html