Inventor
FAHRER HAROLD
US5 patents
Patents
5 patentsUS5444713AAug 22, 1995
Telephone information service system using digital and out-of-band signaling
AT & T CORP107 citations92
US5459779AOct 17, 1995
Method for switching telephone calls to information service providers
AT & T CORP96 citations91
US6078655AJun 20, 2000
Automatic international reattempt method and apparatus
AT & T CORP42 citations90
US6038307AMar 14, 2000
International redial system driven by unsuccessful call reasons
AT & T CORP40 citations88
US5694459ADec 2, 1997
Personalized information service system
AT & T CORP96 citations88