Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of centralized switching system
Reexamination Certificate
2007-02-06
2007-02-06
Tieu, Binh K. (Department: 2614)
Telephonic communications
Diagnostic testing, malfunction indication, or electrical...
Of centralized switching system
C379S009000, C379S015010, C379S112040
Reexamination Certificate
active
10701767
ABSTRACT:
Performance parameters of a switch may be ascertained by observing its behavior during a brief interval of high call volume. This may be achieved by accumulating call messages on a queue before allowing them to be processed together as a group. Without increasing the rate of incident calls, an accumulation of messages is accomplished by altering the amount of time that elapses between transferring the accumulation to a processing queue. In one implementation, test calls are accumulated in call input queue. Ordinarily, these calls are transferred to a second queue for processing every few milliseconds (the transfer period). By increasing the transfer period, an increased number of calls are stored in the call input queue before being transferred to the second queue. This allows a larger number of calls to be processed by the telephone switch in a given cycle and, hence, allows the switch's operation under increased call volumes to be observed.
REFERENCES:
patent: 3840712 (1974-10-01), Oberer et al.
patent: 5042064 (1991-08-01), Chung et al.
patent: 5359646 (1994-10-01), Johnson et al.
patent: 5881140 (1999-03-01), Gerault et al.
patent: 5978358 (1999-11-01), Wang et al.
Gorecki John C.
Nortel Networks Ltd
Tieu Binh K.
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