Real-time call rating and debiting system
US6058173A · kind A · utility
75Cited by
18References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1998 |
| Grant date | May 2, 2000 |
| Priority date | — |
| Expiry date | Feb 19, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2215/7833
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A software process setting time limits for telephone calls so that a subscriber's account balance is not exceeded. The method estimates the time when the subscriber's balance will expire by using total charges for all calls per second. The process accounts for time already paid for, reserving the minimum continuation time for adding a new call, reserving time for all calls up to the latest paid for time, dividing the remaining balance by total charges per second to estimate the time left before the subscriber's balance reaches zero, an setting the time limit for each call accordingly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.