Method and apparatus for screening telephone calls
US4277649A · kind A · utility
329Cited by
5References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 18, 1980 |
| Grant date | Jul 7, 1981 |
| Priority date | — |
| Expiry date | Jan 18, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S379/914
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A telephone system is disclosed for providing customized telephone services. A called customer can screen calls incoming to his station based on the identity of the calling line. The calling line's identity is forwarded to the switching office containing the called customer's screening memory. The memory is interrogated to ascertain the call disposition based on information priorly put in the memory by the called customer. Selective call waiting, selective call forwarding, priority ringing, and many other customized services are contemplated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.