Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
Patent
1991-03-12
1994-03-29
Chan, Wing F.
Telephonic communications
Telephone line or system combined with diverse electrical...
Having transmission of a digital message signal over a...
370 61, 358402, H04M 1100
Patent
active
052992551
ABSTRACT:
An electronic mail processing device includes a magnetic disk with a control table. The device establishes a line between an originating terminal and a destination terminal designated by the originating terminal as a destination of electronic mail information and enters the destination into the control table provided on the magnetic disk as a wrong destination when the destination terminal performs no prescribed response operation to receive the electronic mail information. No electronic mail information is delivered to any of destinations entered into the control table. Thereby, once a destination is stored in the control table, a line is never connected to the destination terminal again, which prevents repeated wrong calls from being made to the same terminal.
REFERENCES:
patent: 3925622 (1975-12-01), Robinson
patent: 4506111 (1985-03-01), Takenouchi et al.
patent: 4713780 (1987-12-01), Schultz et al.
patent: 4941170 (1990-07-01), Herbst
patent: 5001572 (1991-03-01), Hashimoto et al.
patent: 5057941 (1991-10-01), Moriya
Iwaki Hiroshii
Motoyama Hideyuki
Okada Akihiro
Chan Wing F.
Fujitsu Limited
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