Integrated communication system

Details Integrated communication system Integrated communication system

H - Electricity

04

M

379/4

H04M 11/00 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 1223680

Abstract of the Disclosure Integrated Communication System An integrated communication system (e.g. , BIGFON) in- cludes the narrow-band telephone network and a super- posed video-telephone network. The path search for setting up calls in the telephone network is carried out with the said of the telephone call numbers. To permit a video-tele- phone network structure independent of the structure of the telephone network, each subscriber of the video-tele- phone network must be assigned a separate video-telephone call number for the path search in the broadband network. In order that a subscriber does not have to dial two different numbers to set up a video-telephone call, each exchange (V1, V2) of the communication system includes a mapping circuit (ZS) which establishes for each video- telephone subscriber (TEA, TEB) a correspondence between his or her telephone call number and a video-telephone call number serving to set up calls in the video-telephone network. This video-telephone call number can be called up from the mapping circuit (ZS) via the telephone net- work (FN). (Fig.1)

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