Many voice services now involve the caller interacting with the servic
e to select information or to indicate choices. Interactive facsimile
information, TouchTone and voice recognition offer significant benefit
s over voice-only dialogues. This paper introduces interactive dialogu
es, and explains the key features of the different modes of interactio
n. The importance of dialogue design and a consistent dialogue style a
re considered. An overview is given of how service creation tools may
be used to facilitate dialogue design. The preparation and editing of
voice messages is examined. The likely direction of future development
s of interactive voice and facsimile dialogues is discussed.