Communication system having abbreviated dialing access

Details Communication system having abbreviated dialing access Communication system having abbreviated dialing access

1984-11-23

1986-07-15

Brown, Thomas W.

179 18BA, H04M 344, H04M 700

Patent

active

046008128

ABSTRACT:
In private PBX communication systems the number of dialing digits required to establish a connection between stations at different PBXs of the system includes PBX location code digits and station address digits. Abbreviated dialing is accomplished by using one or more digits of the PBX location code as both location code digits as well as part of the digits which comprise the station address.

REFERENCES:
patent: 3160713 (1964-12-01), Williford
patent: 3573389 (1971-04-01), Greenstein et al.
patent: 3689703 (1972-09-01), Allen et al.
patent: 3975595 (1976-08-01), Berube et al.
patent: 4442321 (1984-04-01), Stehman
patent: 4488004 (1984-12-01), Bogart et al.

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