Calling line tracing system and identification detector

Details Calling line tracing system and identification detector Calling line tracing system and identification detector

1987-07-22

1988-06-28

Brown, Thomas W.

Telephonic communications

Reception of calling information at substation in wireline...

Blocking caller id transmission

379247, 379249, H04M 157, H04Q 372

Patent

active

047544759

ABSTRACT:
A detector identification device is provided on the premises of the called elephone station capable of detecting network telephone signals, converting them to digital signals and displaying the digital signals. The device is also capable of providing ringing and other calling signals to the called telephone station. The telephone exchange serving the called telephone station is programmed to initiate a back signaling process to the exchange serving the calling telephone station. In addition, the device transmits back signals used to request and thus complete the identification of the calling telephone station from the telephone network.

REFERENCES:
patent: 4071699 (1978-01-01), Jovic et al.
patent: 4242539 (1980-12-01), Hashimoto
patent: 4445001 (1984-04-01), Bertoglio
patent: 4591665 (1986-05-01), Foster et al.

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