H - Electricity – 04 – M
Patent
H - Electricity
04
M
379/4
H04M 11/00 (2006.01) H04M 3/32 (2006.01) H04M 3/42 (2006.01) H04Q 3/62 (2006.01)
Patent
CA 1205933
ABSTRACT An interactive audio/visual demonstration system for connection to a telephone system, comprising an audio/visual unit connected to an interface circuit. The interface circuit decodes DTMF tones received from the audio/visual unit and in response causes implementation of one or more special features in the telephone system. The interface circuit is preferably connected to an audio track of a video tape recorder, and to the telephone system, such as a PABX, in order to implement a highly interactive video tape presentation in response to a video tape being played on the video tape recorder. The interface circuit is of simple construction and hence durable and inexpensive.
453611
Bawcutt Anthony J.
Deveson Daniel A.
Mitel Knowledge Corporation
Shapiro Cohen
LandOfFree
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