Enhancing voice QoS over unmanaged bandwidth limited packet network
US7613282B1 · kind B1 · utility
0Cited by
5References
1Claims
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Key dates
| Filing date | Apr 10, 2003 |
| Grant date | Nov 3, 2009 |
| Priority date | — |
| Expiry date | Dec 6, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/66
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An improved telephony adapter compresses voice data, creates IP packets, and prioritizes the voice IP packets over the data IP packets. Preferably, the compression and packetization interval is such that the bandwidth occupied by the voice IP packets is approximately half of the minimum average available bandwidth in the upstream direction, thereby maintaining acceptable latency and voice quality of the speech. Further enhancement is achieved by causing the ISP to also give priority to voice packets that are destined to the telephony adapter, over the data packets that are destined to the telephony adapter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.