Conference calls who knew?

I recently attended a seminar over the phone. It was a conference call that was set up by Eagle Teleconferencing, I didn't even realize that these types of calls existed. It was very easy too. There where 3 speakers and each one of them did there lecture and after each lecture the call opened up to the listeners to ask questions by just pressing 1 on the phone, so not every person was talking at once. The operator assisted and things went really smooth and where easy to understand.
I felt like this type of conference call was much easier to plan for because I didn't have to plan a trip to be gone, I could just listen in at the office or at home. I will defiantly look for more seminars that are done this way. It was great!