Validation query based on a supervisory signal
US6430274B1 · kind B1 · utility
68Cited by
16References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2000 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | Jan 18, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2215/62
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A telephone system and method is provided for delaying authorization validation queries until after a called party accepts a telephone call. Queries are avoided not only in cases where the called phone line is busy or not answering, but also in cases where the called party declines to accept the charges. Because authorization validation queries typically take less than half a second, parties are not significantly affected by the delay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.