Telephone apparatus with calling line identification

Telephonic communications – With usage measurement – Call traffic recording or monitoring

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379142, 379 58, 379 61, 379199, H04M 1500, H04M 156, H04M 166, H04M 1100

Patent

active

055531253

ABSTRACT:
A portable cellular telephone capable of recognizing a Calling Line Identification (CLI) signal. The telephone comprises a memory in which can be stored telephone numbers together with an associated operating instruction. For example the instruction may be for the telephone to respond with a "BUSY LINE" signal. When a call is received which includes a CLI signal the memory is searched to find a number corresponding to the CLI. If a match is found the normal operating sequence is interrupted to carry out the associated instruction. Hence the telephone can respond with a "BUSY LINE" signal for calls originating from selected telephone numbers, providing a call screening facility.

REFERENCES:
patent: 4278844 (1981-07-01), Jones
patent: 4873719 (1989-10-01), Reese
patent: 4924496 (1990-05-01), Figa et al.
patent: 4998291 (1991-05-01), Marui et al.
patent: 5029196 (1991-07-01), Morganstein
European Patent Office--Patent Abstracts of Japan--PUB. #JP62281552--Pub. Date Jul. 12, 1987--Telephone Set For Selectively Rejecting Incoming Call.
Patent Abstracts of Japan, vol. 9, No. 310, Dec. 6, 1985, Nippon Denshin Denwakosha, Limited Incoming System.

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