1978-04-28
1979-03-20
Cooper, William C.
179 27FF, H04Q 364
Patent
active
041455789
ABSTRACT:
A method is disclosed of preferentially accessing a group of positions (12 in FIG. 1) for a first type of call over a second type of call in a telephone system (FIG. 1) in which the positions (12) are served by a uniform or automatic call distributing office (1). In accordance with one aspect of the invention, selected ones of the positions (12) are marked unavailable for serving calls after the completion of a call of the second type. Thereafter the selected positions are accessed by overriding the unavailable state for a prescribed number of calls of the first type and, at the completion of the prescribed number of calls, the selected positions are again marked available for serving calls. In accordance with a second aspect of the invention, responsive to a first prescribed traffic delay condition in placing calls of the first type to the positions, ones of the positions are successively marked unavailable for serving calls as each completes a call. This occurs as long as the traffic delay state exists. Calls of the first class are placed to the positions that are marked unavailable by overriding the unavailable state. The positions are successively again made available for serving calls as each becomes idle for serving a new call responsive to a second more desirable prescribed traffic delay condition encountered in placing first type calls.
REFERENCES:
patent: 2874224 (1959-02-01), Culbertson
patent: 3299210 (1967-01-01), Bandy
patent: 3341662 (1967-09-01), Cerny et al.
patent: 3413420 (1968-11-01), Radius et al.
patent: 4048452 (1977-09-01), Oehring et al.
Bell Telephone Laboratories Incorporated
Cooper William C.
Herndon Jerry W.
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