Within an interactive voice response system, a method of aggregating
conference calls can include registering a caller with the interactive
voice response system, accessing a calendar system used by the registered
caller to determine teleconference data specifying at least a telephone
number for a scheduled conference call, and, at approximately a time of
the conference call, automatically calling the telephone number for the
conference call. The method also can include establishing contact with
the registered caller and joining the registered caller with the
conference call.