AUTOMATIC ANSWERING TELEPHONE EQUIPMENT AND ITS CALL INCOMING ANSWERING METHOD

PROBLEM TO BE SOLVED: To instantly answer to a caller excepting for a specific caller by giving information on the presence/absence of a recorded business by the number of the sending time of a calling sound only concerning an incoming call from the specific caller by an automatic answering telephon...

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Bibliographische Detailangaben
1. Verfasser: ISHIGAMI YASUSHI
Format: Patent
Sprache:eng
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