I was talking to Eric Lagerway, CEO of Lypp.  He mentioned that they released their Outlook plug-in for Lypp today.  You simply schedule a meeting like you normally would, and then press the conference button, which sets up a call in number for you and informs the attendees all in one shot.  A very cool addition to an already easy to use and low cost conference calling solution.  

Disclaimer: I’m a board advisor to Lypp