Calling line identification adjunct for use with a communication system
First Claim
1. An adjunct for use with a private communication system which controls communications between a plurality of analog incoming lines and station loops connected to the system, said adjunct interposed between said analog incoming lines and said station loops, said adjunct comprisingmeans for detecting information in an interval between analog ringing signals of an incoming call received over a line of said plurality of analog incoming lines while that line is in an on-hook condition andserver means, responsive to a system control signal received over a station loop, for outputting information selected from said detected information, said selected information being outputted over at least said station loop.
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Accused Products
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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Citations
20 Claims
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1. An adjunct for use with a private communication system which controls communications between a plurality of analog incoming lines and station loops connected to the system, said adjunct interposed between said analog incoming lines and said station loops, said adjunct comprising
means for detecting information in an interval between analog ringing signals of an incoming call received over a line of said plurality of analog incoming lines while that line is in an on-hook condition and server means, responsive to a system control signal received over a station loop, for outputting information selected from said detected information, said selected information being outputted over at least said station loop.
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16. A method of operating an adjunct for use with a private communication system which controls communications between a plurality of analog incoming lines and station loops connected to the system, said adjunct interposed between said analog incoming lines and said station loops, said method comprising the steps
detecting information in an interval between analog ringing signals of an incoming call received over a line of said plurality of analog incoming lines while that line is in an on-hook condition and in response to a system control signal received over a station loop, outputting information selected from said detected information, said selected information being outputted over at least said station loop.
Specification