Automatic subscriber callback system
US6442255B1 · kind B1 · utility
7Cited by
11References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1998 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Jun 16, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/82
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A subscriber callback modem, includes a source of callback data. A modem is coupled to a subscriber telephone line, and a control circuit is coupled between the data source and the modem, for conditioning the modem to automatically call a central computer and transfer the callback data from the data source to the central computer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.