Validation query based on a supervisory signal
US6031898A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 31, 1998 |
| Grant date | Feb 29, 2000 |
| Priority date | — |
| Expiry date | Dec 31, 2018 |
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 a dialed phone is answered. This way, authorization validation queries are avoided in cases where a requested phone line is busy or not answered. In a collect call scheme the system may even delay queries until a party agrees to accept the collect call billing charges. This way, query charges are avoided not only for busy signals and no-answers, but also in the event that the requested party declines to accept the charges. Because authorization validation queries typically take less than one half of a second, parties are not significantly affected by the delay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.