Calling number verification service

Details Calling number verification service Calling number verification service

1992-02-05

1994-08-23

Chin, Stephen

Telephonic communications

Reception of calling information at substation in wireline...

Blocking caller id transmission

379201, 379 69, H04M 156, H04M 1506, H04M 342, H04M 164

Patent

active

053414144

ABSTRACT:
A system which uses Automatic Number Identification (ANI) equipment and techniques and/or Caller ID equipment and techniques to provide a means for telecommunicators to verify if identifying information such as their telephone number or the location they are calling from is being passed to receiving parties and/or if their call blocking or rerouting methods to prevent this from happening are effective.

REFERENCES:
patent: 4672660 (1987-06-01), Curtin
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patent: 4924496 (1990-05-01), Figa et al.
patent: 4926471 (1990-05-01), Ikeda
patent: 4996704 (1991-02-01), Bruson
patent: 5033076 (1991-07-01), Jonos et al.
patent: 5046088 (1991-09-01), Margulies
patent: 5048075 (1991-09-01), Katz
patent: 5056086 (1991-10-01), Libonai
patent: 5056134 (1991-10-01), Bauer et al.
patent: 5058152 (1991-10-01), Solomon et al.
patent: 5070525 (1991-12-01), Szlam et al.
patent: 5077788 (1991-12-01), Cook et al.
patent: 5113430 (1992-05-01), Richardson, Jr. et al.
patent: 5161181 (1992-11-01), Zwick
Excerpts taken from FCC 91-300 38241 CC Docket 91-281.

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