Comprehensive automatic directory assistance apparatus and method thereof
US4608460A · kind A · utility
115Cited by
9References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1984 |
| Grant date | Aug 26, 1986 |
| Priority date | — |
| Expiry date | Sep 17, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/4931
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A comprehensive automatic directory assistance apparatus includes a means for receiving information from a caller via a specified number of DTMF signals, means for identifying another subscriber from the signals, means for vocally conveying information relating to the other subscriber to the caller and means, selectable by said caller, for connecting the caller with the other subscriber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.