Radio telephone system for calling a party at predetermined inve

Telephonic communications – Audio message storage – retrieval – or synthesis

Patent

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Details

379 58, H04M 1100

Patent

active

052241467

ABSTRACT:
A radio telephone system which comprises a base unit connected to a wired telephone line and a radio telephone set connected to the base unit through a radio link and which has an automatic re-calling function of automatically calling a party telephone set at intervals of a predetermined time when the parts telephone set is in a speech mode. This automatic re-calling operation is carried out only in the base unit under the released condition of the radio link between the base unit and the radio telephone set, and after the base unit confirms a response from the party telephone set, the radio link is established between the radio telephone set and the base unit.

REFERENCES:
patent: 4481382 (1984-11-01), Villa-Real
patent: 4706274 (1987-11-01), Baker et al.
patent: 4761806 (1988-08-01), Toki
patent: 4939768 (1990-07-01), Inaba et al.
patent: 4959850 (1990-09-01), Marui

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