Using network time protocol in voice over packet transmission
US7602815B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2003 |
| Grant date | Oct 13, 2009 |
| Priority date | — |
| Expiry date | Sep 8, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/0638
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
One or more methods and systems of effectively transmitting voice and voice band data from one node to another are presented. In one embodiment, the system comprises an NTP time server generating absolute times to computing devices such as residential voice over internet protocol (VoIP) gateways. The NTP time server generates absolute times in response to NTP time requests made by one or more computing devices such as residential VoIP gateways. In one embodiment, the method comprises determining an adequate rate for requesting absolute times from an NTP server, making periodic requests to the NTP server, obtaining the absolute times from the NTP server, and generating an adjustment parameter for use by a computing device such as a residential VoIP gateway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.