Call forwarding system and method
US4878243A · kind A · utility
45Cited by
9References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 27, 1987 |
| Grant date | Oct 31, 1989 |
| Priority date | — |
| Expiry date | Jul 27, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/54
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A call forwarding device forwards calls from a calling party via private equipment B operating in a call forwarding mode to a predetermined called party identified by a preprogrammed telephone number. The device is remotely controllable by the calling party over the telephone lines to cancel the call forwarding mode of the device and to reprogram the call forwarding telephone number.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.