Telephonic communications – With usage measurement – Call charge metering or monitoring
Patent
1992-05-21
1995-12-26
Chin, Stephen
Telephonic communications
With usage measurement
Call charge metering or monitoring
379142, 379701, 379245, 379198, 379246, H04M 1500, H04M 1506, H04M 300, H04M 342
Patent
active
054794935
ABSTRACT:
An adjunct unit provides Incoming Caller Line Identification (ICLID) capability for a communication system. The adjunct unit interposed between the control unit and station sets of a communication system obtains ICLID from ringing central office lines and monitors signalling between the control unit and station sets to determine which stations are to receive the ICLID information. Using prestored database information the ICLID information can be used to obtain the calling party name for output to the station sets. The adjunct unit also outputs ICLID information to an application processor which stores calling records for the system.
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Baker Albert D.
Bennett Joseph M.
Hsia Richard Y.
Kemp, II David G.
Kurien Thomas V.
AT&T Corp.
Caccuro John A.
Chin Stephen
Loomis Paul
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