Communication line monitoring system

Details Communication line monitoring system Communication line monitoring system

1991-11-08

1993-07-20

Schreyer, Stafford

Telephonic communications

With usage measurement

Call traffic recording or monitoring

379113, 379164, H04M 1500, H04M 1508

Patent

active

052300170

ABSTRACT:
One or more lines of a communication terminal are monitored to determine blocked calls by detecting times of incoming calls. A signal corresponding to the pattern of incoming calls is generated from the detected times. After detection of the starting time of an all lines are busy state, an estimate of blocked calls is formed from the incoming call pattern signal and the detected start of the all lines are busy state.

REFERENCES:
patent: 4559416 (1985-12-01), Theis et al.

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