A method for using a centralized conference call manager is provided for initiating conference calls. Users register with the centralized conference call manager to set up a conference call at a future date and time. When the designated time/date arrive, the centralized conference call manager contacts the various intended attendees using a variety of contact locations (e.g., office telephone, mobile telephone, home telephone, etc.). The system further allows an intended attendee to, when contacted by the centralized conference call manager, provide a different contact number that the conference call manager will use instead. An anticipated attendee can decline the call and provide a verbal reason for not being able to attend. The centralized conference call manager records the reason and, when requested, plays the reason back to the other attendees.