I think we can all agree that while Skype is excellent on Windows, it has yet to perform particularly well in Linux. Since it seems unlikely that this will change in the relatively near future (from what I have read in various posts in this list, and given the significant gap between windows/linux versions of Skype), I think you might want to note that there are a number of Open Source voip options available. For example, take a close look at those listed here: http://www.voip-info.org/wiki-Open+Source+...e+VOIP+Software
I'm sure most of the readers in this particular forum are already partial to Open Source software, and will find that there are at least one or two projects out there that kick the pants off Skype when it comes to running on Linux. I'm not sure if it would get me in trouble to name something specific here in Skype's forum, but there is one project that I'm definitely moving to as it uses ALSA without any hacking around (and also seems to run fine simultaneously with Skype), and I will try to get all of my colleagues to consider using it as well.