Method of making a call reservation and sending an interrupt ton

Details Method of making a call reservation and sending an interrupt ton Method of making a call reservation and sending an interrupt ton

1989-06-30

1990-07-17

Dwyer, James L.

Telephonic communications

Special services

Repetitive call attempts

379208, 379215, H04M 348

Patent

active

049426010

ABSTRACT:
Disclosed is a method that gives a priority service to enable a subscriber with an urgent message to call another subscriber who is already engaged in a telephone conversation, regardless of the reservation order, and sends an interrupt tone regularly to the target subscriber as a notification that he has a priority reservation and the subscriber engaged in the telephone conversation can link himself with the priority subscriber without having to cut off the current telephone conversation. The method comprises a plurality of control sequences performed in accordance with the attached flow chart figures.

REFERENCES:
patent: 3944750 (1976-03-01), Subanski
patent: 4096358 (1978-06-01), Bidlack et al.
patent: 4759055 (1988-07-01), Okumura et al.

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