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Inventor
JOSEPH EUGENE J
US
3 patents
Patents
3 patents
US5835573A
Nov 10, 1998
Method and system for call screening
AT & T CORP
138 citations
96
US6266524B1
Jul 24, 2001
Method and system for call screening
AT & T CORP
17 citations
90
US6115602A
Sep 5, 2000
Method and system for call screening
AT & T CORP
13 citations
80