Method of and circuit arrangement for inserting dialling interva

Details Method of and circuit arrangement for inserting dialling interva Method of and circuit arrangement for inserting dialling interva

1986-02-18

1988-09-06

Levy, Stewart J.

Telephonic communications

Supervisory or control line signaling

Substation originated

379216, H04M 127

Patent

active

047698357

ABSTRACT:
A method and apparatus for providing dialling intervals in dialling sequences indirectly dialled by a register in which such sequences are stored, such intervals being in accordance with the dialling intervals produced by a user during direct dialling of such sequences. Direct dialled subscriber numbers which include a dialling interval after at least one digit therein, such as for line access, are stored in a reference memory along with such interval. Upon an indirect dialling of such sequence from a redial or abbreviated dialling register, a microprocessor in the telephone set compares such sequence digit by digit with sequences stored in the reference memory, and if there is a match inserts in the dialled sequence the dialling interval in the matching stored sequence. By counting the number of such agreements for each stored sequence of dialling digits, the sequence having the lowest count value can be erased from the reference memory and replaced by a new dialed sequence having a dialling interval, thereby reducing the necessary storage capacity of the reference memory. A dialling interval in a stored sequence is altered in accordance with the interval inserted by a user each time such sequence is directly dialled, thereby adapting to the dialling behavior of the user.

REFERENCES:
patent: 4039761 (1977-08-01), Nicoud et al.
patent: 4119810 (1978-10-01), Marin et al.
patent: 4160124 (1979-07-01), Law
patent: 4201887 (1980-05-01), Burns
patent: 4342882 (1982-08-01), Gravenhorst et al.
patent: 4571463 (1986-02-01), Shefter

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