Patent · US Expired

Apparatus and method for a caller ID modem interface

US5546448A · kind A · utility

106Cited by
13References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 10, 1994
Grant dateAug 13, 1996
Priority date
Expiry dateNov 10, 2014

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04M1/663
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

An interface for modems is described which provides rapid identification of a caller and limited access based on a variety of parameters obtained from caller identification information encoded by the telephone company. The incoming telephone call information is compared to a preprogrammed access matrix to determine if the caller is authorized to access the modem connected to the interface. A telephone call screening method and apparatus which incorporates the encoded caller identification is also described. Finally, a method and apparatus for a telephone database for statistical accounting is described.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.