Quality-of-service monitor for voice-over-Internet-protocol calls
US7230919B2 · kind B2 · utility
10Cited by
12References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2001 |
| Grant date | Jun 12, 2007 |
| Priority date | — |
| Expiry date | Dec 11, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/0829
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
During voice-over-Internet-protocol calls, data are gathered about packet loss on the path over the IP network. An algorithm (in the preferred embodiment, the Sliding Window Exponential Average Algorithm) is used to evaluate the packet loss. The Sliding Window Exponential Average Algorithm allows for past performance to be considered along with current performance. If the resulting evaluation fails to meet predetermined criteria, the path over the IP network is blocked and calls are routed over an alternative.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.