I use Eagle Teleconferencing for all of my conference calls. I have a plan with them that allows me to have as many callers as I need and I can have several different calls with them. All I have to do is schedule my calls with their reservations department and they give me call details. They are there 24/7 to help with whatever I need. It's really easy to have conference calls with Eagle. If you haven't checked out Eagle do so today!