Automatic user preference selection for message playback based on caller line identification data
US6795536B1 · kind B1 · utility
14Cited by
21References
31Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 26, 1999 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Feb 26, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q3/72
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.