Hello,
a short note to those wanting to participate in our conference calls via Skype: The amount of Skype dial-ins is limited, due to licensing issues.
We therefore ask that you use either SkypeOut or a regular phone, instead of the Skype contact. The Skype contact should be used by those who cannot participate otherwise, or for whom dialing in via phone is expensive.
One more reason for open standards... let's see if we can set-up a direct SIP connection soon. 
Sorry for the inconveniences,
Florian