Information notification system in a public telephone system

Details Information notification system in a public telephone system Information notification system in a public telephone system

1998-12-04

2000-11-07

Kuntz, Curtis A.

Telephonic communications

Reception of calling information at substation in wireline...

Blocking caller id transmission

379 9317, H04M 156

Patent

active

061447285

ABSTRACT:
A telephone system uses a called station ID data decided by a called station and informed to a specified calling station, which stores the ID data. When a call is received in the called station, the called station forwards the ID data, against which the calling station compares the ID data stored in the calling station. If both the ID data coincide with each other, the calling station delivers the telephone number of the calling station to the called station for display. This prevents the telephone number of the calling station from being open to a third party when a wrong call is made from the calling station.

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