Telephonic communications – Special services – Abbreviated dialing or direct call
Patent
1986-10-09
1989-01-10
Dwyer, James L.
Telephonic communications
Special services
Abbreviated dialing or direct call
379273, 379234, 379165, H04M 342
Patent
active
047979151
ABSTRACT:
An automatic route selection capability for a communication system is described which enables the system to utilize digits of a called party number to select in a predetermined manner a predefined group of line pools and a line therein over which the call is to be placed. Once the predefined group of line pools is selected, a priority scheme enables the system to sequentially search each line pool for an available line over which the call can be placed. The system dials the called party using route character digits which prefix or optionally replace one or more of the user-dialed digits.
REFERENCES:
patent: 3935396 (1976-01-01), Barsellotti
patent: 4096359 (1978-06-01), Barsellotti
patent: 4503291 (1985-03-01), von Holten et al.
patent: 4506346 (1985-03-01), Bennett et al.
Bowker Duane O.
Giuliani Adrian A.
Jones David F.
American Telephone and Telegraph Company
AT&T Information Systems Inc.
Caccuro John A.
Dwyer James L.
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