Telephonic communications – Telephone line or system combined with diverse electrical... – To produce visual-graphic copy
Patent
1989-09-15
1991-07-16
Dwyer, James L.
Telephonic communications
Telephone line or system combined with diverse electrical...
To produce visual-graphic copy
379355, H04M 1272, H04M 1108
Patent
active
050330780
ABSTRACT:
A communication apparatus performs setting and cancelling of a compressed dial number mode by detecting the state, on-hook or off-hook, of a handset by use of a hook state detecting device. When the handset is in on-hook state, a compressed dial number mode is selected. By operating the dial number keys to enter a compressed dial number in the on-hook state, corresponding destination telephone number are read out of a memory and a calling operation is performed.
REFERENCES:
patent: 4567326 (1986-01-01), Sato et al.
patent: 4764951 (1988-08-01), Kotani et al.
Dwyer James L.
Sharp Kabushiki Kaisha
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