Telephonic communications – Special services – Abbreviated dialing or direct call
Patent
1991-04-08
1993-12-21
Dwyer, James L.
Telephonic communications
Special services
Abbreviated dialing or direct call
379201, 379211, 379289, 379355, H04M 342
Patent
active
052727491
ABSTRACT:
A special feature telephone dialing and switching application system for interconnection to and interaction with the switching system of a central telephone office for converting subscriber-created telephone numbers, including a recognition sequence of one or more digits having alternative alphabetical letter significance, to standard assigned telephone numbers including a 3 digit switch sequence number and a 4 digit recognition sequence number. The recognition sequence of digits of the subscriber-created telephone numbers are followed by the # symbol digit of key dialing telephones and are preceded by a special switch sequence number assigned to the special feature application system within the number phone area code serviced by the central telephone office.
REFERENCES:
patent: 4633041 (1986-12-01), Boivie et al.
patent: 4677659 (1987-06-01), Dargan
patent: 4748661 (1988-05-01), Edelstein et al.
patent: 4757267 (1988-07-01), Riskin
patent: 4839919 (1989-06-01), Borges et al.
Radio Shack Catalog, 1988 (.COPYRGT.1987), "Easy-to-Use Multifeature Phones" p. 83.
Copy of AAA membership card, 1991.
Dwyer James L.
Junkins Philip D.
Matar Ahmad F.
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